EP0105967B1 - Méthode et dispositif pour l'investigation de la structure et de la perméabilité dans les domaines des sols et des rochers - Google Patents

Méthode et dispositif pour l'investigation de la structure et de la perméabilité dans les domaines des sols et des rochers Download PDF

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Publication number
EP0105967B1
EP0105967B1 EP82109653A EP82109653A EP0105967B1 EP 0105967 B1 EP0105967 B1 EP 0105967B1 EP 82109653 A EP82109653 A EP 82109653A EP 82109653 A EP82109653 A EP 82109653A EP 0105967 B1 EP0105967 B1 EP 0105967B1
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Prior art keywords
measuring
dam
injection
gas
bores
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP82109653A
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German (de)
English (en)
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EP0105967A1 (fr
Inventor
Werner Prof. Dr. Ernst
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Heidelberger Bauchemie GmbH
Original Assignee
Kohlensaure-Werke Rud Buse & Co GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Kohlensaure-Werke Rud Buse & Co GmbH filed Critical Kohlensaure-Werke Rud Buse & Co GmbH
Priority to EP82109653A priority Critical patent/EP0105967B1/fr
Priority to AT82109653T priority patent/ATE20366T1/de
Priority to DE8282109653T priority patent/DE3271679D1/de
Priority to CA000439208A priority patent/CA1203401A/fr
Priority to AU20284/83A priority patent/AU570221B2/en
Priority to US06/543,434 priority patent/US4537062A/en
Publication of EP0105967A1 publication Critical patent/EP0105967A1/fr
Application granted granted Critical
Publication of EP0105967B1 publication Critical patent/EP0105967B1/fr
Expired legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D1/00—Investigation of foundation soil in situ
    • E02D1/08—Investigation of foundation soil in situ after finishing the foundation structure
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/10—Locating fluid leaks, intrusions or movements
    • E21B47/11—Locating fluid leaks, intrusions or movements using tracers; using radioactivity

Definitions

  • the invention relates to a method and a device for examining the structure and permeability of earth and rock areas by means of gases, a measuring gas being introduced into the examination area at least at one injection point and, after penetrating the examination area or a sub-area thereof, being collected and measured again at several measuring points
  • the structure and the permeability of the examination area are determined from the time it takes for the measurement gas to penetrate the examination area and from the concentration of the measurement gas collected.
  • Such a method is known from US-A-2 429 577.
  • a radiolabelled gas is introduced into one or more perforated boreholes in order to explore the flow paths or the permeability of a rock horizon.
  • the measurements are carried out in the same or in several other boreholes located away from the press-in borehole with special detectors which are accommodated in the borehole.
  • the known method merely tracks the measurement gas in the injection horizon, so that it is not possible to crack, fissures, faults and cavities in the rock or in layers of earth in terms of their location, size and shape.
  • the solution to this problem is that the measuring gas is collected by means of flat measuring probes which are introduced into the surface area and distributed over a large area.
  • measurement gases are thus passed through the areas or layers to be examined and then collected at a number of measuring points distributed over a wide area, a type of x-ray image then being obtained by comparing the measurement data obtained at the grid-like measuring points, which provides information about the structure and the permeability of the examined objects are there and faults, such as cracks or cavities, can be recognized perfectly.
  • the method can be carried out comparatively economically and, particularly when carbon dioxide is used as the measurement gas, has no adverse consequences for the object under examination.
  • the invention now provides a method for controlling the permeability and settlement conditions of flushed-in or artificially poured earth and stone dams, which are dams of dams, side dams of rivers and canals and dykes to ward off floods and storm surges can act.
  • the concentrations of the gases arriving there and the time they need to flow through the dam cross-section represent dimensions for the permeability of the dam.
  • a "mapping" of the dam's internal structure can thus be achieved, which provides exact information Interferences, such as horizontal cracks. It is also possible to determine cracks parallel to the axis of the dam, more or less perpendicular to the natural subsoil, as can occur, for example, in the case of disturbed settlement conditions, slope breaks, shearings and bottom breaks.
  • the injected gases only initially follow a horizontally predetermined flow path and then merge into the vertically oriented structure, which can be determined by gas measurements on the top of the dam.
  • the method according to the invention is therefore based on the fact that gases introduced into the dam body under pressure spread along the normal or disturbed sediment structures and normally follow a flow pattern comparable to the electrical potential. If the dams are tight, only a small part of the injected gases will reach the dam side opposite the injection side after a considerable delay of the order of hours. If horizontal permeabilities are present due to cracking, however, the amount of gases arriving on the other side increases while the diffusion time is reduced. This flow pattern of the injected gases changes, however, in the presence of cracks which are more or less vertical to the dam height and which can be parallel, diagonal or perpendicular to the dam axis.
  • the spreading of the gas then takes place preferably in these cracks, as a result of which a larger proportion of the gas migrates towards the top of the dam.
  • concentrations and the time of the incoming gases are also a direct measure of the location, size and permeability of the impurities.
  • carbon dioxide is used as the injection gas, which has the advantage of easy availability, portability and measurability.
  • the risk that C0 2 enters into a compound (H 2 C0 3 ) with the leachate and thus increases the solubility of calcareous and merge-like dam materials is due to the short residence time of the gases in the dam body and the low tendency of the C0 2 to carbonic acid with water form, negligible.
  • gases for example methane, propane, SO 4 or activated gases, can also be used, provided that they have no high reactivity or solubility with regard to water and dam material and are perfectly measurable or detectable.
  • 1 in FIG. 1 is a dam, on one side 10a, generally the so-called air side (Land side), a gas injection device is provided.
  • the gas injection device consists of a first unit 11 and a second unit 12.
  • the unit 11 has an essentially rectangular tubular frame, consisting of two vertical tubes 13 and four horizontal tubes 14.
  • the vertical tubes 13 are at their ends closed. With 13a a gas connection is designated.
  • the horizontal tubes 14 open into the tubes 13, i.e.
  • the further unit 12 corresponds essentially to the unit 11. Further units (not shown) can be provided which have rollers by means of which they can be moved on the unit 11, for which purpose the tops of the vertical tubes 13 of the unit 11 are rail-like are trained. This results in an arrangement in the manner of a pull-out ladder.
  • the "pull-out ladder" can consist of several such units, depending on the height of the dam.
  • the device 11 has a number of sixteen injection tubes 17 made of light metal with a length of 0.5 m, which are distributed equally between the four horizontal tubes 14.
  • the device 11 has a length and a height of 3 m each. Another unit can extend the height up to 6 m.
  • a separate, rigid frame which can optionally be telescopically extended, on which frame one or more units 11 or 12 are then arranged such that they can be rolled.
  • the use of a separate frame provides the advantage that it can also serve as a ladder for the operators when crossbars are attached.
  • the injection tubes 17 are pushed into the dam or inserted into prepared boreholes, the cones 17a serving as a seal. Then carbon dioxide or another measuring gas under low pressure is supplied to the devices 11 and 12, namely by connecting the measuring gas source 18 (FIG. 2B) to the gas connection 13a or a comparable connection of the device 12.
  • a tank with liquid can be used as the measuring gas source
  • Carbon dioxide with evaporator, carbon dioxide pressure bottles or pressure bottles or containers with methane, propane or sulfur dioxide can be used.
  • Fig. 2 shows the opposite side 10b of the dam 10, generally the water side of the dam, on which the measuring device is provided.
  • the measuring device consists of a plurality of measuring probes 20, each of which is connected according to FIG. 2A via a hose 21 and a solenoid valve 22 to a pipe 23, which is optionally equipped with a vacuum pump 24 or with a gas measuring device 25, preferably for C0 2 , connected is.
  • each measuring probe 20 is formed by a tube which is perforated in its front region and has a sealing cone 20a in its rear region.
  • the measuring probes 20 have a length of 20 cm and 10 probes 20 each form a measuring unit, the individual tubes 21 being combined to form a tube bundle.
  • the perforation holes of the measuring probes 20 are expediently arranged in a spiral all around.
  • the measuring probes 20 are pressed or hammered into the cover or insulating layer of the dam 10 or inserted into prefabricated boreholes.
  • the distribution of the measuring probes 20 should be as uniform as possible; the number of measuring probes 20 used depends on the particular circumstances, the "resolution" of the resulting image being better, of course, the closer the measuring probes are inserted.
  • the entire hose system with the probes connected to it are flushed with air and then evacuated. This facilitates gas entry into the probes and the further transport of the measurement gas into the measuring devices 25.
  • the gas analyzes are called up individually by the probes, ie the individual solenoid valves 22 are opened in sequence and closed again.
  • the analysis result is expediently displayed digitally.
  • the measuring apparatus is provided with a strong diaphragm pump (not shown) which is so powerful that it can transport the gas received in the probes 20 via the hose lines to the measuring instruments 25.
  • the measurement of the gas concentrations of C0 2 , methane and propane by the measuring devices 25 is expediently carried out on the principle of heat. Appropriate devices are available on the market. There are also various other measurement systems for sulfur dioxide.
  • the output signals of the measuring devices 25 are expediently fed to a display device and / or a printing unit, in particular one with a graphic representation, whereby a kind of X-ray image of the dam structures is obtained and the evaluation is facilitated.
  • the individual hose lengths can be reduced to Can be enlarged 7 times. This results in a total of 70 measuring hoses, which are combined in the lower part to form a hose bundle. With a pumping and analysis time of 20 seconds each, a total of about 24 minutes. required to carry out all measurements on a hose strand. If the measuring length of a dam exceeds 70 m, another measuring unit 70 m long can be used as the second measuring system. With a gas injection width of 3 m on the injection side, the width of the measuring probe system on the receiving side must be about 6 m due to the side scattering effects of the gas. A total of three hose systems are required for the measurement of a 6 m wide section, which, as stated above, can be designed up to 70 m. Every hose system requires a measuring apparatus and an operator.
  • the number of measuring points is reduced accordingly.
  • interconnecting the three hose systems for the 6 m wide measuring front one can work with one measuring apparatus and with one operator.
  • the lateral displacement of the injection and measuring systems is expediently carried out on prepared, horizontally laid light metal rails.
  • FIG. 3 denotes a dam, in the sealing body 31 of which a control passage 32 runs parallel to the longitudinal axis of the dam.
  • injection bores 33 are now drilled into the dam subsurface according to the invention, namely vertically or at an angle.
  • the boreholes 33 can be partially or completely cased, in the latter case openings at the bottom of the borehole for the injection gas to be provided in the pipe wall.
  • at least one measuring bore 34 is provided for receiving the injection gases, which preferably extends vertically and is piped in its upper region.
  • the injection bores 33 and the measuring bores 34 serve to check the dam subsoil in the manner described below.
  • a barrier layer for example a cement injection, is shown at 35 in FIG.
  • an injection bore 36 which is partially piped, and measuring probes 37 mounted on the surface of the earth are used.
  • a measuring probe 37 has a sealing cone 37a and is connected to a hose line 38 with a shut-off valve 39 - not shown - Measuring device connected. The measuring probe 37 is inserted into a prepared bore 40.
  • the inspection of the dam subsoil is therefore carried out in practice with the aid of one or more injection bores 33 or 36 which are driven vertically or obliquely to a depth of 100 m into the geological subsoil.
  • These bores 33 can also be carried out from the inspection passages 32 of the earth or stone dam 30 after completion of the construction work.
  • the gases introduced into the cased or uncased bores 33 under pressure preferably carbon dioxide gases or also methane, propane or sulfur dioxide, spread more or less quickly and far underground depending on the permeability of the geological layers, partly also in solution in the groundwater.
  • the spread of these gases in depth is detected by the measuring bores 34, the depths of which essentially correspond to those of the injection bores 33.
  • the spread of the injected gases is not only horizontal, but also to a much greater extent towards the surface of the earth.
  • additional shallow measuring holes 37 By making additional shallow measuring holes 37 to 0.8 m deep, it is possible to detect the spread and speed of gas displacement in the subsurface, even on the surface.
  • the injected gas flows into the uncased lower part of the measuring boreholes, which were previously evacuated.
  • the gas is collected in the piped part and fed to a measuring device for measurement via the shortest possible plastic hoses, for example in the manner described in the first exemplary embodiment.
  • a measuring device for measurement via the shortest possible plastic hoses, for example in the manner described in the first exemplary embodiment.
  • Additional surface measuring probes 37 are preferably also provided.
  • the gases supplied through the injection bore 36 are prevented from spreading further horizontally in the subsurface and therefore flow after a short period of time towards the surface of the earth, where these gases can then be collected and measured. Only when the barrier layer 35 is interrupted or inadequately tight will a portion of the gases be able to continue flowing unhindered and accordingly only reach the surface after the barrier layer 35. An interruption of the barrier layer 35 is therefore noticeable in that in the interruption area that in front of the barrier layer 35 measuring probes 37 absorb significantly less gas than measuring probes of an uninterrupted, dense area of the barrier layer 35. Of course, it is also possible to place further flat measuring probes behind the barrier layer 35 and behind the dam 30 on the air side, which then through the barrier layer 35 measure gas that has passed through.
  • FIG. 4 A third exemplary embodiment of the invention, which relates to the detection and location of underground cavities and tectonic disturbances of the subsurface, is explained below with reference to FIG. 4.
  • 40 is an underground cavity
  • 41 is a tectonic disturbance.
  • an injection bore 42 leads vertically down into the cavity 40, and a large number of flat measuring probes 43 are arranged on the surface of the earth.
  • Underground voids are created by geological processes or by mining work.
  • the geologically determined cavities are sinkholes and caves. Cavities caused by mining are wells, boreholes, shafts, tunnels and device lines for the extraction of raw materials.
  • the method of the invention can now be used to locate such underground cavities of unknown extent and extension. Under normal rock mechanics conditions, a subsidence cone with directed and widened microstructures forms above collapsed cavities. These structures run towards the hollow body and cause a greater permeability between the underground cavity and the surface of the earth.
  • gases can spread along such secondary structural zones. For this purpose, carbon dioxide gas or other suitable gases are injected into the cavity 40 through the injection bore 42.
  • the gas which is introduced under pressure and partly also soluble in water, spreads out laterally in the cavity 40, and with increasing pressure, gases diffuse upward over the loosened structural zones, where they are measured by the flat measuring probes 43.
  • the gas-filled cavity 40 is thus, so to speak, using the gases on the surface of the earth.
  • the measuring probes 43 in area A of FIG. 4 will thus take up gas, whereas the remaining measuring probes 43 remain gas-free.
  • the design and arrangement of the flat measuring probes 43 correspond to the measuring probes 37 in FIG. 3A.
  • the practical way of locating underground cavities 40 is based on a preliminary investigation of the natural distribution of soil gas above a suspected cavity.
  • the natural gas concentration associated with the formation of cavities gives raw reference values in the loosened structure of the rock about the extent of the cavity and thus a reference point for the preparation of one or more injection holes 42.
  • the second step for the more precise location of underground cavities 40 is then carried out with the help of one or several holes made.
  • the landing point of the bore 42 is, if possible, the cavity 40 itself or the mountains directly affected by it, which is connected to the cavity 40 via the loosened structure.
  • the bore 42 is provisionally piped to just above the loose zones.
  • the measurement gases are injected under pressure into the cavity 40 above the head of the piping. During and after the injection, the bottom gas measurements are carried out to determine the gas contents in areas of increased permeability.
  • a particular advantage of the method of the invention is that, particularly when carbon dioxide is selected as the injection gas, no permanent and harmful effects on rocks, soils and buildings are caused, because most of the injected gas migrates quickly to the surface of the earth and only a very small part of the gas , about 0.1%, is consumed in the groundwater for carbonation.
  • Carbon dioxide has the further advantage that it can be detected quickly and precisely quantitatively using simple measuring devices.
  • the method can be used to locate cavities that are at depths of up to 200 m and deeper.
  • the other gases mentioned also have no harmful effects, which is related to the high levels of dilution in the layers of earth and rock.
  • the method just described can also be used to detect tectonic disturbances in the subsurface. If the normal storage of a mountain range is disturbed by fractures (upward and downward movements, active fissures), artificial mass accumulations, such as the construction of dams and buildings or the build-up of dams, can increase the movement processes of the tectonic fractures. On the other hand, such breaks can also be the cause of uncontrolled groundwater flows.
  • the injection bore 42 extends from a few meters to can be over 100 m deep, test gases are pressed in under pressure, which spread out laterally in porous layers of the subsurface.
  • test gases are pressed in under pressure, which spread out laterally in porous layers of the subsurface.
  • the tectonic disturbance 41 forms a kind of drainage for the artificially introduced gases.
  • the gases are measured in the same way as when locating cavities. In this case, the flat measuring probes in area B detect gas, while the measuring probes remain essentially gas-free outside this area.
  • radioactive gases are particularly suitable as measurement gases, because even with the smallest amounts of gas, exact measurements can be carried out using appropriate detectors; preferably one will choose gases that are easy to activate and - for safety reasons - ensure the shortest possible half-life. Otherwise, with low permeability, gases with the lowest possible density will be chosen, for example helium, i.e. gases with great penetration ability.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Paleontology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics (AREA)
  • Analytical Chemistry (AREA)
  • Soil Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
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Claims (18)

1. Procédé pour l'étude de la structure et de la perméabilité de formations terrestres et rocheuses au moyen de gaz, un gaz de mesure étant envoyé dans la formation explorée en un point d'injection (11, 33, 36, 42) au moins et, après avoir traversé la formation explorée ou une région partielle de celle-ci, étant capté et mesuré en plusieurs points de mesure, la structure et la perméabilité de la formation explorée étant déterminées à partir du temps que le gaz de mesure a pris pour traverser la formation explorée et à partir de la concentration du gaz de mesure capté, caractérisé en ce que le gaz de mesure est capté au moyen de sondes de mesure de surface (20, 37, 43) distribuées selon deux dimensions et introduites dans la région de la surface.
2. Procédé selon la revendication 1 pour la surveillance de digues de terre et de pierres, en particulier pour la détection et la localisation de fissures, caractérisé en ce que le gaz de mesure est introduit d'un côté de la digue, en particulier du côté aval, en plusieurs points dans le corps de la digue, et est recapté en des points de mesure du même côté ou du côté opposé de la digue, en particulier du côté amont, et/ou sur le couronnement de la digue.
3. Procédé selon la revendication 1 pour la surveillance de digues de terre et de pierres dans lesquelles sont formés des galeries de contrôle et/ou des trous de sondage de contrôle, en particulier pour la détection et la localisation de fissures, caractérisé en ce que le gaz de mesure est introduit dans le corps de la digue en plusieurs points à partir d'une galerie de contrôle et/ou de trous de sondage de contrôle, et est recapté sur un côté de la digue, en particulier sur le côté amont, et/ou sur le couronnement de la digue en des points de mesure.
4. Procédé selon la revendication 1 pour l'étude du substratum de digues de terre et de pierres, caractérisé en ce qu'à partir de la surface de la terre, au voisinage de l'un des flancs de la digue ou à partir de galeries de contrôle qui s'étendent dans la digue, des forures d'injection verticales ou obliques sont formées dans la base de la digue, puis un gaz de mesure est introduit dans les forures d'injection, et en ce qu'à partir de la surface de la terre, en particulier de l'autre côté de la digue, de préférence du côté aval, des forures de mesure verticales ou obliques sont pratiquées dans le sol pour capter le gaz de mesure qui a traversé le substratum de la digue.
5. Procédé selon la revendication 1 pour la localisation et la détermination des dimensions de cavités souterraines, caractérisé en ce qu'à partir de la surface de la terre, des forures d'injection s'étendant verticalement ou obliquement sont pratiquées jusque dans la région de la cavité présumée, de préférence jusque dans la cavité et un gaz de mesure est introduit dans les forures d'injection, et en ce qu'il est disposé dans la surface de la terre, dans la région située au-dessus de la cavité présumée, une multiplicité de points de mesure pour capter le gaz de mesure qui remonte.
6. Procédé selon la revendication 1 pour l'exploration de perturbations tectoniques du sous-sol, en particulier pour la localisation de fractures tectoniques, caractérisé en ce qu'à psrtir de la surface de la terre, des forures de mesure sont pratiquées dans le sous-sol et un gaz de mesure est introduit dans les forures de mesure, et en ce qu'il est prévu, sur la surface de la terre, dans la région située au-dessus des perturbations ou fissures présumées, une multiplicité de points de mesure pour capter le gaz de mesure qui remonte.
7. Procédé selon l'une quelconque des revendications 1 à 6, en particulier 5 ou 6, caractérisé en ce qu'il est répété plusieurs fois, de nouvelles forures d'injection étant pratiquées sur la base des résultats de mesure des phases opératoires respectivement précédentes.
8. Procédé selon l'une quelconque des revendications 4 à 7, caractérisé en ce que les forures d'injection et/ou de mesure sont tubées et rendues étanches dans leur partie supérieure.
9. Procédé selon l'une quelconque des revendications 1 à 7, caractérisé en ce que les points de mesure sont réunis en un panneau de mesure avec un unique poste de détection, au niveau duquel est effectuée une évaluation au moyen de traitement des données.
10. Procédé selon l'une quelconque des revendications 1 à 9, caractérisé en ce qu'on utilise, comme gaz de mesure, l'anhydride carbonique, des hydrocarbures gazeux et/ou des gaz activés, en particulier activés radioactivement.
11. Procédé selon l'une quelconque des revendications 1 à 9, caractérisé en ce que différents gaz de mesure sont utilisés, successivement ou en différents points d'injection.
12. Dispositif pour l'exécution du procédé selon la revendication 2, caractérisé par un dispositif d'injection (11, 12) formé de tubes (13, 14) assemblés en forme de cadre ou d'échelle, des sondes d'injection tubulaires (17) étant raccordées aux tubes horizontaux (14) par des conduites flexibles (15) et les tubes verticaux (13) étant reliés à une source de gaz de mesure, ainsi que par un dispositif de mesure (20, 21, 22, 23, 25) formé d'une multiplicité de sondes de mesure tubulaires (20) qui sont raccordées à un dispositif de mesure (25) par l'intermédiaire de tuyaux flexibles (21), de soupapes électromagnétiques (22) et d'un tuyau collecteur commun (23).
13. Dispositif selon la revendication 12, caractérisé en ce qu'il est prévu plusieurs dispositifs d'injection (11,12) qui sont de préférence reliés entre eux, directement ou par l'intermédiaire d'un système de barres d'échelle, de manière à pouvoir etre déplacés ou déployés télescopiquement.
14. Dispositif selon la revendication 12 ou 13, caractérisé en ce qu'il est prévu plusieurs dispositifs de mesure, les appareils de mesure (25) étant raccordés à un poste d'évaluation commun qui contient des éléments d'affichage et/ou des imprimantes.
15. Dispositif selon l'une quelconque des revendications 12 à 14, caractérisé en ce que les sondes d'injection et/ou de mesure (17; 20) comportent des cônes d'étanchéité (17a; 20a) à leur extrémité arrière.
16. Dispositif selon l'une quelconque des revendications 12 à 15, caractérisé en ce que les tubes collecteurs (23) du dispositif de mesure peuvent être raccordés en outre à une pompe à vide (24).
17. Dispositif pour l'exécution du procédé selon l'une quelconque des revendications 4 à 7, caractérisé par une multiplicité de sondes de mesure de surface tubulaires (37, 43) munies de cônes d'étanchéité (37a), qui peuvent être enfoncées dans des forures de la surface pratiquées à l'avance et qui sont raccordées par des conduites flexibles à un poste commun de mesure et d'affichage.
18. Procédé selon la revendication 1, caractérisé par son application à l'inspection d'ouvrages d'art faits de matériaux qui ne sont perméables aux gaz que dans des régions partielles, notamment des constructions en béton présentant des zones de corrosion et/ou des systèmes de fissures.
EP82109653A 1982-10-19 1982-10-19 Méthode et dispositif pour l'investigation de la structure et de la perméabilité dans les domaines des sols et des rochers Expired EP0105967B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP82109653A EP0105967B1 (fr) 1982-10-19 1982-10-19 Méthode et dispositif pour l'investigation de la structure et de la perméabilité dans les domaines des sols et des rochers
AT82109653T ATE20366T1 (de) 1982-10-19 1982-10-19 Verfahren und vorrichtung zum untersuchen der struktur und der durchlaessigkeit von erd- und gesteinsbereichen.
DE8282109653T DE3271679D1 (en) 1982-10-19 1982-10-19 Method and apparatus for the investigation of the structure and permeability of soil and rock formations
CA000439208A CA1203401A (fr) 1982-10-19 1983-10-18 Methode et dispositif d'investigation de la structure et de la porosite du sous-sol fait de terre et de couches rocheuses
AU20284/83A AU570221B2 (en) 1982-10-19 1983-10-18 Investigating the structure and porosity of earth regions
US06/543,434 US4537062A (en) 1982-10-19 1983-10-19 Method and apparatus for investigating the structure and porosity of earth and stony regions

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EP82109653A EP0105967B1 (fr) 1982-10-19 1982-10-19 Méthode et dispositif pour l'investigation de la structure et de la perméabilité dans les domaines des sols et des rochers

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EP0105967A1 EP0105967A1 (fr) 1984-04-25
EP0105967B1 true EP0105967B1 (fr) 1986-06-11

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EP (1) EP0105967B1 (fr)
AT (1) ATE20366T1 (fr)
AU (1) AU570221B2 (fr)
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US7244965B2 (en) * 2002-09-04 2007-07-17 Cree Inc, Power surface mount light emitting die package
US7686401B1 (en) 2008-10-09 2010-03-30 J.I. Enterprises, Inc. Method for sub-glacial mineral reconnaissance and recovery
US8065087B2 (en) * 2009-01-30 2011-11-22 Gyrodata, Incorporated Reducing error contributions to gyroscopic measurements from a wellbore survey system
US20120134749A1 (en) * 2010-11-15 2012-05-31 Thomas Darrah Using noble gas geochemistry to evaluate fluid migration in hydrocarbon bearing black shales
JP6391010B2 (ja) * 2014-12-18 2018-09-19 清水建設株式会社 トンネル切羽前方の透水特性の評価方法および評価システム
CN105181554A (zh) * 2015-09-18 2015-12-23 中国矿业大学(北京) 一种应用灌浆层的横向接缝的防水测试方法
CN109946370A (zh) * 2019-02-19 2019-06-28 中南大学 一种基于磁场测量的堤坝渗漏通道检测方法及其装置
CN114295529B (zh) * 2022-01-05 2023-07-25 国家能源集团新疆能源有限责任公司 一种人工扰动后岩体内部裂隙发育情况测定方法及系统
CN116357392B (zh) * 2023-04-28 2025-12-23 太原理工大学 一种废弃大巷中储碳空间充填重构-co2封存的方法
CN118225524B (zh) * 2024-02-20 2024-09-24 中国矿业大学 废弃矿井遗煤空隙-裂隙-孔隙介质重构装置及重构方法
CN119207059A (zh) * 2024-11-27 2024-12-27 安徽建筑大学 一种堤坝裂缝监测预警系统及方法

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EP0105967A1 (fr) 1984-04-25
US4537062A (en) 1985-08-27
DE3271679D1 (en) 1986-07-17
AU570221B2 (en) 1988-03-10
CA1203401A (fr) 1986-04-22
AU2028483A (en) 1984-05-03
ATE20366T1 (de) 1986-06-15

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