EP4409111A1 - Procédé de surveillance de terrain de recouvrement lors de l'exploitation du sol par taille chassante, et dispositif d'exploitation par taille chassante - Google Patents

Procédé de surveillance de terrain de recouvrement lors de l'exploitation du sol par taille chassante, et dispositif d'exploitation par taille chassante

Info

Publication number
EP4409111A1
EP4409111A1 EP22789846.7A EP22789846A EP4409111A1 EP 4409111 A1 EP4409111 A1 EP 4409111A1 EP 22789846 A EP22789846 A EP 22789846A EP 4409111 A1 EP4409111 A1 EP 4409111A1
Authority
EP
European Patent Office
Prior art keywords
pressure
control element
pressure control
soil
propulsion device
Prior art date
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.)
Granted
Application number
EP22789846.7A
Other languages
German (de)
English (en)
Other versions
EP4409111B1 (fr
EP4409111C0 (fr
Inventor
Hans-Peter Uffmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Herrenknecht AG
Original Assignee
Herrenknecht AG
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.)
Filing date
Publication date
Application filed by Herrenknecht AG filed Critical Herrenknecht AG
Publication of EP4409111A1 publication Critical patent/EP4409111A1/fr
Application granted granted Critical
Publication of EP4409111B1 publication Critical patent/EP4409111B1/fr
Publication of EP4409111C0 publication Critical patent/EP4409111C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/003—Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines
    • 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
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/02—Automatic control of the tool feed
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • 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
    • E21B47/008—Monitoring of down-hole pump systems, e.g. for the detection of "pumped-off" conditions
    • 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
    • E21B47/06—Measuring temperature or pressure
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining

Definitions

  • the invention relates to a method for controlling overburden during tunneling in the ground and to a tunneling device suitable for carrying out the method.
  • the underground installation of pipes by means of pipe jacking is now a process technology in civil engineering that has been tried and tested for many decades. Due to the advances, especially in the last 30 years, drives up to 1000 m in length and diameters of up to almost 5 meters are now being successfully carried out.
  • the main difference between the tunneling techniques is the type of excavation of soil or rock at the so-called working face.
  • the excavated material hereinafter referred to as overburden, can be transported from the working face to the starting shaft in various ways, e.g.
  • the invention is based on the technical problem of providing a method and a propulsion device of the type mentioned at the outset, with which an excessive extraction rate of overburden can be detected at an early stage more reliably than with the prior art.
  • the soil pressure exerted by the soil on a propulsion device driven through the soil is controlled by means of a pressure control element that can be extended from the circumference of the propulsion device for overburden control when driving in the ground.
  • a pressure control element that can be extended from the circumference of the propulsion device for overburden control when driving in the ground.
  • the propulsion device can be any machine, e.g. a full-face machine or a
  • the use of the method is also independent of the type of conveyance of the excavated soil, eg by bucket conveyor, auger conveyance or scavenging conveyance.
  • the pressure control element can have various geometries.
  • a pressure control element is conceivable, the outer wall of which, in the non-extended state, continues the shape of the peripheral wall forming the circumference of the propulsion device and which executes a pivoting movement for the extension. In the extended state, for example, the pressure control element could protrude like a fin from the peripheral wall of the propulsion device.
  • the method can be adapted to different soil compositions. It is not necessary for the inventive method to determine the finest pressure changes in the ground pressure in order to react to them with changes in the advance speed and/or the amount of overburden conveyed per unit of time. The method according to the invention is already effective when a strong decrease in ground pressure can be detected, which suggests that soil has been removed too much.
  • the method according to the invention can be carried out in such a way that the pressure control element is preferably moved hydraulically or pneumatically.
  • the method according to the invention can be implemented in such a way that a change in the soil pressure is detected by measuring the pressure in a pressure medium used in the hydraulic or pneumatic system and/or by changing the position of the pressure control element.
  • the pressure control element tends to move outwards, resulting in a reduction in pressure in the pressure medium, which can be water or oil, for example.
  • the pressure control element protrudes at least in part from the peripheral wall of the propulsion device, for example by a value of up to 30 mm or more.
  • the pressure of the pressure medium is automatically adjusted, ie reduced, and preferably when the pressure falls below a limit value or a pressure change, a signal is automatically emitted or an action is triggered in order to reduce the advance speed and/or the conveying quantity of overburden per unit of time. If a sufficient increase in the soil pressure is determined by means of the pressure control element, the rate of advance and/or the amount of spoil conveyed per unit of time can be increased again.
  • a change in the position of the pressure control element can be detected at a preset outlet pressure of the pressure medium.
  • the pressure control element can be brought into an initial position in which the pressure control element protrudes at least in part from the peripheral wall of the propulsion device, e.g. by up to 20 mm or up to 50 mm. Larger values are also possible.
  • the pressure control element is preferably blocked against movement from the starting position in the direction of the interior of the propulsion device, so that up to a maximum load only movement into the ground or from there back to the starting position is possible.
  • a pressure relief valve can be used.
  • the outlet pressure can be selected depending on the soil condition and/or soil composition. It can be advantageous to set the outlet pressure so that it is a fraction of the passive earth pressure, for example at most 20%, more preferably at most 10% or more preferably at most 5%. In this case, only a local massive reduction in the passive earth pressure in the ground allows the pressure control element to move outwards, which is a strong indication of significant over-extraction. Since, in an advantageous embodiment of the method according to the invention, only a small fraction of the passive earth pressure is selected for the initial pressure, this does not necessarily have to be precisely determined in advance. Rather, a rough estimate of the passive earth pressure with known or assumed soil compositions may be sufficient.
  • soil pressure on the propulsion device can be checked by measuring the pressure in the pressure medium and/or by measuring the change in position or path on the pressure control element.
  • soil pressure generally means the pressure that is exerted by the soil under the given conditions on an area, here in particular on the tunneling device, and is used here to differentiate it from the technical terms "passive earth pressure” and "active earth pressure”.
  • the pressure control element is preferably arranged in the area of the ridge, i.e. at an upper point of the propulsion device, since this is where a reduction in the soil pressure due to over-extraction is most noticeable.
  • the pressure control element should preferably be installed as close as possible behind the top of the machine in order to detect over-extraction of the soil at an early stage.
  • Fig. 2 like an enlarged section of the propulsion device. 1 shows the pressure control element in the retracted state
  • Fig. 3 the pressure control element according to FIG. 2 in the retracted state in axial cross section
  • Fig. 4 the pressure control element according to FIG. 2 in lateral cross section in the extended state.
  • 1 shows a schematic lateral cross-section of the front part of a tubular propulsion device having a peripheral wall 3 with a drill head 1 and a motor unit 2 for driving the drill head 1 .
  • the peripheral wall 3 can be formed by a cutting shoe.
  • a wedge-shaped pressure control element 5 is arranged pivotably about a pivot axis 6 in a box-shaped receptacle 4 fixed to the peripheral wall 3 .
  • the pressure control element 5 is articulated on a piston 7 of a hydraulic cylinder 8 .
  • the pressure control element 5 can be brought into an extended position via the hydraulic cylinder 8 and the piston 7, referred to in their entirety below as the hydraulic system 11, in which an upper contact surface 9 of the pressure control element 5 protrudes at least partially beyond the circumference of the peripheral wall 3.
  • FIG. 2 shows an enlarged section of the propulsion device with the box-shaped receptacle 4, the pressure control element 5, the piston 7 and the hydraulic cylinder 8 together with the soil 10 surrounding the propulsion device.
  • the pressure control element 5 In the retracted state, the pressure control element 5 is essentially flush with its contact surface 9 the circumference of the peripheral wall 3.
  • FIG. 3 shows the situation according to FIG. 2 in axial cross section.
  • FIG. 4 shows the pressure control element 5 in an extended position in which the contact surface 9 of the pressure control element 5 protrudes into the soil 10 .
  • the exemplary procedure is as follows: from a starting pit not shown here, the propulsion device is driven into the ground 10 with, for example, a rotating drill head 1 .
  • the drill head 1 has a slight overcut relative to the circumference of the circumferential wall 3 of the propulsion device.
  • lubricating material 12 for example bentonite, can be introduced via lines (not shown here) and openings in the peripheral wall 3 into an intermediate space created by the overcut, which reduces the friction of the peripheral wall 3 with respect to the soil 10 .
  • Excavated soil 10, ie the overburden can, with the addition of a liquid, for example water, be directed towards the starting pit via hoses (not shown here). be taken away.
  • a liquid for example water
  • Alternative types of transport are also possible, for example via a worm or bucket conveyor, which is also not shown here and is arranged inside the propulsion device.
  • the pressure of a pressure medium in the hydraulic system 11 is set such that there is a balance between the torques that are exerted on the pressure control element 5 via the pressure of the soil 10 on the one hand and via the piston 7 on the other. If the pressure in the soil 10 decreases, the pressure in the hydraulic system 11 must be reduced accordingly in order to maintain the position of the pressure control element 5, so that the reduction in the soil pressure can be determined via the pressure in the hydraulic system 11.
  • Such a reduction in soil pressure suggests that soil 10 has been overextracted, so that as a countermeasure, for example, the excavation rate of the overburden can be reduced and/or the propulsion of the propulsion device can be increased in order to prevent subsidence or undesired loosening of soil 10 impede.
  • the extended length of the piston 7 or the position of the pressure control element 5 relative to other parts of the propulsion device, e.g. to the peripheral wall 3, can be measured using suitable methods in order to detect a change in the determined on the pressure control element 5 exerted soil pressure.
  • an initial pressure can be set in the hydraulic system, to which a fraction of, for example, 10% of the passive soil pressure of the surrounding soil 10 is applied.
  • the pressure control element 5 is when the soil pressure is less than 10% of the passive earth pressure is pushed outwards. With this movement, an over-extraction of overburden in the ground 10 can be determined.
  • the receptacle 4 can be filled with a material that does not impede the tasks of the hydraulic system 11, for example bentonite. This is preferably under a pressure that corresponds at least essentially to the pressure of the lubricating material 12 in order to prevent the entry of the lubricating material 12 possibly mixed with soil 10 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • Geophysics (AREA)
  • Mechanical Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Earth Drilling (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

L'invention concerne un procédé de surveillance du terrain de recouvrement lors de l'exploitation du sol par taille chassante, dans lequel procédé la pression de sol exercée par le sol (10) sur un dispositif d'exploitation par taille chassante entraîné dans le sol (10) est surveillée par un élément de surveillance de pression (5) qui dépasse de la périphérie (3) du dispositif d'exploitation par taille chassante. Un dispositif d'exploitation par taille chassante permettant la mise en œuvre du procédé comprend un élément de surveillance de pression (5), lequel est disposé en périphérie (3) du dispositif d'exploitation par taille chassante et peut être déployé au-delà de la périphérie (3) du dispositif d'exploitation par taille chassante.
EP22789846.7A 2021-09-29 2022-09-09 Procédé de surveillance de terrain de recouvrement lors de l'exploitation du sol par taille chassante, et dispositif d'exploitation par taille chassante Active EP4409111B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021125286.5A DE102021125286A1 (de) 2021-09-29 2021-09-29 Verfahren zur Abraumkontrolle beim Vortrieb in Erdreich sowie Vortriebseinrichtung
PCT/DE2022/100666 WO2023051865A1 (fr) 2021-09-29 2022-09-09 Procédé de surveillance de terrain de recouvrement lors de l'exploitation du sol par taille chassante, et dispositif d'exploitation par taille chassante

Publications (3)

Publication Number Publication Date
EP4409111A1 true EP4409111A1 (fr) 2024-08-07
EP4409111B1 EP4409111B1 (fr) 2025-10-22
EP4409111C0 EP4409111C0 (fr) 2025-10-22

Family

ID=83692743

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22789846.7A Active EP4409111B1 (fr) 2021-09-29 2022-09-09 Procédé de surveillance de terrain de recouvrement lors de l'exploitation du sol par taille chassante, et dispositif d'exploitation par taille chassante

Country Status (9)

Country Link
US (1) US12270291B2 (fr)
EP (1) EP4409111B1 (fr)
CN (1) CN118043534A (fr)
AU (1) AU2022358205B2 (fr)
CA (1) CA3233774A1 (fr)
DE (1) DE102021125286A1 (fr)
ES (1) ES3056935T3 (fr)
PL (1) PL4409111T3 (fr)
WO (1) WO2023051865A1 (fr)

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5246634A (en) * 1975-10-13 1977-04-13 Tekken Constr Co Shield excavator
JPS53111630A (en) * 1977-03-11 1978-09-29 Tekken Constr Co Method of shield excavating and shield excavator
JPS53135140A (en) * 1977-04-28 1978-11-25 Tekken Constr Co Excessive excavation detector for muddy water shield excavator
JPS59154293A (ja) * 1983-02-24 1984-09-03 鉄建建設株式会社 シ−ルド掘進機の余掘量測定装置
JPS59185297A (ja) * 1983-04-06 1984-10-20 日立造船株式会社 シ−ルド掘進機における地山検出装置
JPS6250294U (fr) * 1985-09-19 1987-03-28
JP2934896B2 (ja) * 1990-03-09 1999-08-16 株式会社小松製作所 シールド工法の裏込め注入量の算出装置およびその算出方法
US5203614A (en) 1991-06-17 1993-04-20 The Robbins Company Tunneling machine having liquid balance low flow slurry system
DE9415536U1 (de) 1994-09-26 1995-01-05 Mohrmann, Michael, Dipl.-Ing., 47625 Kevelaer Microtunnel-Bohrmaschine mit pneumatischem Bohrgut-Abtransport
JP3821538B2 (ja) * 1997-05-22 2006-09-13 株式会社小松製作所 トンネル掘削機の掘進制御方法
JP3794798B2 (ja) * 1997-10-02 2006-07-12 株式会社小松製作所 余掘装置兼地山探査装置及び地山の探査方法
US6554368B2 (en) * 2000-03-13 2003-04-29 Oil Sands Underground Mining, Inc. Method and system for mining hydrocarbon-containing materials
WO2002040819A2 (fr) 2000-11-14 2002-05-23 Alois Pichler Procede de realisation d'un sondage et machine de creusement correspondante

Also Published As

Publication number Publication date
EP4409111B1 (fr) 2025-10-22
US12270291B2 (en) 2025-04-08
AU2022358205A1 (en) 2024-04-11
WO2023051865A1 (fr) 2023-04-06
CN118043534A (zh) 2024-05-14
ES3056935T3 (en) 2026-02-25
DE102021125286A1 (de) 2023-03-30
EP4409111C0 (fr) 2025-10-22
US20240418072A1 (en) 2024-12-19
AU2022358205B2 (en) 2025-12-11
PL4409111T3 (pl) 2026-02-09
CA3233774A1 (fr) 2023-04-06

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