EP0063630A1 - Procédé et dispositif pour remplir les excavations entre le soutènement des galeries et la roche au moyen de tuyaux contenant un remplissage durcissable - Google Patents

Procédé et dispositif pour remplir les excavations entre le soutènement des galeries et la roche au moyen de tuyaux contenant un remplissage durcissable Download PDF

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Publication number
EP0063630A1
EP0063630A1 EP81103227A EP81103227A EP0063630A1 EP 0063630 A1 EP0063630 A1 EP 0063630A1 EP 81103227 A EP81103227 A EP 81103227A EP 81103227 A EP81103227 A EP 81103227A EP 0063630 A1 EP0063630 A1 EP 0063630A1
Authority
EP
European Patent Office
Prior art keywords
profile
support
hose
support tube
expansion
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
EP81103227A
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German (de)
English (en)
Other versions
EP0063630B1 (fr
Inventor
Werner Dr.-Ing. Dürrfeld
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.)
GTG Gesteins- und Tiefbau GmbH
Original Assignee
GTG Gesteins- und Tiefbau 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.)
Filing date
Publication date
Application filed by GTG Gesteins- und Tiefbau GmbH filed Critical GTG Gesteins- und Tiefbau GmbH
Priority to AT81103227T priority Critical patent/ATE15250T1/de
Priority to DE8181103227T priority patent/DE3171989D1/de
Priority to EP81103227A priority patent/EP0063630B1/fr
Priority to US06/368,175 priority patent/US4465405A/en
Priority to CA000401350A priority patent/CA1179515A/fr
Priority to AU82875/82A priority patent/AU8287582A/en
Publication of EP0063630A1 publication Critical patent/EP0063630A1/fr
Application granted granted Critical
Publication of EP0063630B1 publication Critical patent/EP0063630B1/fr
Expired legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/14Lining predominantly with metal
    • E21D11/15Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
    • E21D11/157Laggings making use of fluid cushions, e.g. the fluid containing a hardenable material

Definitions

  • the backfilling of the line expansion generally serves to keep point loads through the mountains away from the line construction. This presupposes that any route construction should be connected with the backfill as far as possible over its entire circumference directly to the mountain surface, which usually did not break out according to the route profile.
  • the invention relates to hardening, preferably hydraulic, fillers which are in liquid form under considerable pressures, e.g.
  • the invention is based on the object of the known backfilling technique, which is not restricted to specific structural distances, with the aid of support hoses, in particular of known design, which e.g. Can bridge distances of approx. 25 cm and are therefore relatively small in volume, to be applied to general I-profile-shaped expansion profiles in multi-part track structures and to protect their segment connections against overloads even if they are designed to be flexible to a limited extent.
  • the support hose is placed and supported directly on at least part of its length on the outer surface of an extension profile flange facing the mountains at least on this part of its length of the expansion profile flange is fully or partially molded into the cross-sectional contour of the upper profile when the support tube is clamped
  • the general I-profile-shaped expansion profiles can be installed in such a way that, despite the support tube with the so-called y-axis, in the expansion level are oriented where their main bending direction is.
  • the procedure can be such that the limitedly displaceable mounting is carried out over part lengths of the support hose and is freely movable over the other part lengths. This procedure is of considerable advantage because it facilitates the insertion of the support hose and in particular reduces the number or length of the devices which must be additionally provided on the expansion profile when the support hose is automatically held.
  • the method according to the invention can be used in that a connection to the rock or to the warp is established with one or more short hoses on the back of the support hose facing the rock.
  • the method according to the invention provides for the short hoses to be stretched over at least part of their length to form a double bead and centered on the support tube with the double bead.
  • Han can proceed according to a further embodiment of the invention so that the short hoses are placed with a transverse fold on the support hose, which is used as a material reserve when the short hose in question is clamped.
  • a support hose 2 is arranged on an arcuate route construction, generally designated 1, which is filled with a hardening filler 3 under pressure.
  • the support hose surrounds the entire circumference of the track construction 1 and thus also the tab connections indicated at 13 and 19 of the ends of its three segments 28, 32 and 35.
  • This support hose bridges eLnen existing on the entire circumference of the track construction 1 and, for example, at a specified distance of varying thickness from e.g. up to 25 cm between the track construction 1 and the delay 5 pressed against the mountains 4.
  • a centering arch 12 is used to prevent the hose from slipping off during the subsequent inflation of the filling hose 2 with the hardening filling.
  • this consists of a U-profile 14 with legs 15, 16, which enclose the expansion profile 6 and are angled outwards at 17 and 18 at their free ends.
  • the angled ends form a holder for the support tube during inflation, which allow the support tube to move during filling, but which is limited in both directions transverse to the expansion plane.
  • the support hose is stretched to the upper profile shown at 20 when it is provided with the required pressure with the hardening filling. This filling can be pumped in at one or both hose ends.
  • the centering arch 12 is strived towards the center several times, as shown at 27, for example in FIG. 1.
  • the struts end at gusset plates 29, on the underside of which a hemisphere 30 is formed, which can be supported by a stamp schematically indicated by an arrow 31. It is also possible, however, to support the centering arch 12, which is only required for a short time, namely until the filler has hardened, with the aid of a charger which is used to unload the pile in the track advance.
  • the base plate 38 is deformed into a flat channel 52 which opens in the direction of the mountains 4 or the draft 5.
  • the support tube 2 is therefore not supported with the outside of the upper flange 11, but with the tabs 37, which with their legs 53 and 54 prevent the support tube from escaping from the expansion level on both sides.
  • such a short hose is made from a round woven piece of hose 63, which is sewn at its ends by several transverse seams, as indicated at 64 and 65.
  • the tube material is divided by short bar seams 66, 67 approximately in its longitudinal center.
  • These sealing seams can have a length of approx. 70 mm and can be quadruple and double-stitched.
  • the short hoses can be made of the same material as the support hose.
  • a support hose is in particular a round-woven hose, which is designed, for example, for test pressures of up to 15 bar.
  • the fabric is designed so that it gives a filter effect, so that fine-grained filling material retained, but water is released to the outside. In particular, complete retention of the binders of the preferably hydraulic filler is ensured.
  • the construction is also set up in the embodiment of FIGS. 13 and 15.
  • the support hose is positively connected to the upper flange 10 by pushing the recesses 86 onto the associated pins or round bolts 87.
  • the length of the support tube lies freely on the upper flange 10.
  • the tube can, in the course of filling, stand out in whole or in part from the pins 87 as soon as the positive engagement begins; however, the connection between the parts 86 and 87 can also be secured against loosening from one another.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Architecture (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Supports For Pipes And Cables (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Laminated Bodies (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
EP81103227A 1981-04-29 1981-04-29 Procédé et dispositif pour remplir les excavations entre le soutènement des galeries et la roche au moyen de tuyaux contenant un remplissage durcissable Expired EP0063630B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AT81103227T ATE15250T1 (de) 1981-04-29 1981-04-29 Verfahren und vorrichtung zum hinterfuellen von streckenausbau des berg- und tunnelbaus mit hilfe von eine aushaertende fuellung aufweisenden stuetzschlaeuchen.
DE8181103227T DE3171989D1 (en) 1981-04-29 1981-04-29 Method and device for filling the hollow space between the roof support of galleries and the rock by means of pipes containing a hardening filling
EP81103227A EP0063630B1 (fr) 1981-04-29 1981-04-29 Procédé et dispositif pour remplir les excavations entre le soutènement des galeries et la roche au moyen de tuyaux contenant un remplissage durcissable
US06/368,175 US4465405A (en) 1981-04-29 1982-04-14 Method and device for the backfilling of roadway supports in mine and tunnel construction with the aid of support hoses having a hardening filler
CA000401350A CA1179515A (fr) 1981-04-29 1982-04-21 Methode pratique de soutenement d'une chaussee de mine ou de tunnel par des tuyaux remplis d'un materiau durcissant
AU82875/82A AU8287582A (en) 1981-04-29 1982-04-21 Roof support in underground roadways

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP81103227A EP0063630B1 (fr) 1981-04-29 1981-04-29 Procédé et dispositif pour remplir les excavations entre le soutènement des galeries et la roche au moyen de tuyaux contenant un remplissage durcissable

Publications (2)

Publication Number Publication Date
EP0063630A1 true EP0063630A1 (fr) 1982-11-03
EP0063630B1 EP0063630B1 (fr) 1985-08-28

Family

ID=8187684

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81103227A Expired EP0063630B1 (fr) 1981-04-29 1981-04-29 Procédé et dispositif pour remplir les excavations entre le soutènement des galeries et la roche au moyen de tuyaux contenant un remplissage durcissable

Country Status (6)

Country Link
US (1) US4465405A (fr)
EP (1) EP0063630B1 (fr)
AT (1) ATE15250T1 (fr)
AU (1) AU8287582A (fr)
CA (1) CA1179515A (fr)
DE (1) DE3171989D1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2555657A1 (fr) * 1983-11-24 1985-05-31 Genie Civil Coordination Et Systeme de soutenement utilisable en travaux souterrains en complement de cadres, cintres, etc... metalliques ou autres permettant de bloquer efficacement le terrain sur toute la peripherie avec utilisation de manches en tissu permeable a l'eau rempli de coulis pompable elabore a cet usage
EP0203242A1 (fr) * 1985-05-30 1986-12-03 M.I.G.E.C. Procédé et dispositif pour la réalisation d'un soutènement continu d'un souterrain
DE3914950A1 (de) * 1988-09-17 1990-03-22 Gebhardt & Koenig Gesteins Und Grubenausbaugewebeschlauch mit schwachstellen
GB2245011A (en) * 1990-06-13 1991-12-18 Lyndon Derek Bradbury Roadway support
CN110631918A (zh) * 2019-11-22 2019-12-31 中铁九局集团第四工程有限公司 一种隧道侵入接触带长管棚加固稳定性判别方法
CN113446040A (zh) * 2021-07-21 2021-09-28 安徽理工大学 一种填充展开式巷道支护装置及施工方法

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4773792A (en) * 1987-07-20 1988-09-27 Landers Phillip G System for stabilizing structural elements
US4983077A (en) * 1987-08-26 1991-01-08 Gebhardt & Koenig-Gesteins- Und Tiefbau Gmbh Method and an apparatus for producing fabric-reinforced lining supports or slender supporting structural units
DE8814117U1 (de) * 1988-11-11 1989-03-16 Gebhardt & Koenig - Gesteins- und Tiefbau GmbH, 4350 Recklinghausen Grubenausbaugewebeschlauch zur Verspannung des nachgiebigen Streckenausbaus im Untertagebergbau
DE4002457A1 (de) * 1990-01-27 1991-08-08 Gewerk Auguste Victoria Wasserdichte bohrschachtgruendung
US5143484A (en) * 1991-02-26 1992-09-01 Maurice Deul Mine cribbing device and method
ZA929685B (en) * 1991-12-18 1993-06-09 H L & H Timber Prod Preload headboard for an elongate prop.
ZA931433B (en) * 1992-03-04 1993-09-22 H L & H Timber Prod Mine prop headboard.
CA2111996A1 (fr) * 1992-12-22 1994-06-23 Mark Howell Systeme de soutenement de mine
ZA947397B (en) * 1993-09-24 1995-05-15 H L & H Timber Prod Prop headboard
GB9929123D0 (en) * 1999-12-10 2000-02-02 James Peter Improvements relating to tunnel reinforcements
US8801510B2 (en) * 2006-03-16 2014-08-12 Heintzmann Corporation (Usa) Inflatable ventilation life curtain
EP2354447B1 (fr) * 2010-01-29 2017-03-08 Officine Maccaferri Italia S.r.l. Procédé pour supporter et renforcer une excavation parmi un arc
JP5603291B2 (ja) * 2011-05-26 2014-10-08 大成建設株式会社 トンネル覆工補強構造およびトンネル覆工補強方法
JP6337375B2 (ja) * 2013-08-12 2018-06-06 国立大学法人島根大学 空洞充填によるトンネルの補修方法
CN104196548B (zh) * 2014-07-23 2016-07-06 中国矿业大学(北京) 一种组合交叉支架
CN105156133A (zh) * 2015-09-29 2015-12-16 中铁科工集团轨道交通装备有限公司 一种用于管片二次衬砌设备的内涨式反力支撑装置
CN112282815A (zh) * 2020-10-28 2021-01-29 贵州理工学院 一种巷道支护用支撑装置
CN112361923B (zh) * 2020-11-04 2022-02-01 华北科技学院 一种用于监测煤矿巷道顶板偏移的测量装置
CN115234260B (zh) * 2022-08-17 2024-08-02 安徽理工大学 一种高强自承载双型钢组合支护结构及方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1291310B (de) * 1963-06-28 1969-03-27 Rheinstahl Wanheim Gmbh Streckenausbau
DE1534626B2 (de) * 1966-10-27 1975-02-13 Gruen & Bilfinger Ag, 6800 Mannheim Tübbingauskleidung zum Durchführen eines Verfahrens zum Vermeiden von Setzungen beim Tunnelbau mittels Schildvortriebs
DE2439345A1 (de) * 1974-08-16 1976-02-26 Gruen & Bilfinger Ag Fuellung von nach aussen offenen wellen oder kassetten von tuebbings
DE2513387B1 (de) * 1975-03-26 1976-09-09 Bergwerksverband Gmbh Abstuetzkissen mit feststoffuellung zur hangendsicherung, vorzugsweise im bergbau
DE2646334A1 (de) * 1976-10-14 1978-04-20 Eisenhuette Prinz Rudolph Ag Verfahren und drahtverzugmatte fuer strecken des berg- und tunnelbaus zur herstellung eines anschlusses des ausbaus an das ihn umgebende gebirge aus aushaertendem hinterfuellmaterial
DE2656933A1 (de) * 1976-12-16 1978-06-22 Beton & Monierbau Ag Ausbau unterirdischer hohlraeume mit profilbestaendigen stuetztragwerken
DE3033794B1 (de) * 1980-09-09 1981-05-07 Ferroplast Gesellschaft für Metall- und Kunststoffer- zeugnisse mbH, 4320 Hattingen Schlauch zum Hinterfuellen von Grubenausbau,insbesondere Streckenausbeurahmen im untertaegigen Grubenbetrieb

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3396545A (en) * 1965-04-07 1968-08-13 Tech Inc Const Method of forming concrete bodies
CH462871A (de) * 1966-08-31 1968-09-30 Schindler Bauunternehmung Ag L Verfahren zum Abstützen von Gewölbepartien in Kavernen, Tunnels oder Stollen im Fels und Vorrichtung zur Durchführung des Verfahrens
US3509725A (en) * 1968-08-12 1970-05-05 Harry Schnabel Jr Method and structure for reinforcing tunnels
CH514036A (de) * 1970-06-12 1971-10-15 Heierli Werner Tunnelbauverfahren
SU685831A1 (ru) * 1975-09-10 1979-09-15 Институт Геотехнической Механики Ан Украинской Сср Механизированна пресс-опалубка дл возведени сводчатой монолитной крепи
DE2627256C3 (de) * 1976-06-18 1979-09-20 5600 Wuppertal Ausbau für den Untertagebergbau
GB1535981A (en) * 1976-08-04 1978-12-13 Coal Ind Underground roadway or tunnel support

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1291310B (de) * 1963-06-28 1969-03-27 Rheinstahl Wanheim Gmbh Streckenausbau
DE1534626B2 (de) * 1966-10-27 1975-02-13 Gruen & Bilfinger Ag, 6800 Mannheim Tübbingauskleidung zum Durchführen eines Verfahrens zum Vermeiden von Setzungen beim Tunnelbau mittels Schildvortriebs
DE2439345A1 (de) * 1974-08-16 1976-02-26 Gruen & Bilfinger Ag Fuellung von nach aussen offenen wellen oder kassetten von tuebbings
DE2513387B1 (de) * 1975-03-26 1976-09-09 Bergwerksverband Gmbh Abstuetzkissen mit feststoffuellung zur hangendsicherung, vorzugsweise im bergbau
DE2646334A1 (de) * 1976-10-14 1978-04-20 Eisenhuette Prinz Rudolph Ag Verfahren und drahtverzugmatte fuer strecken des berg- und tunnelbaus zur herstellung eines anschlusses des ausbaus an das ihn umgebende gebirge aus aushaertendem hinterfuellmaterial
DE2656933A1 (de) * 1976-12-16 1978-06-22 Beton & Monierbau Ag Ausbau unterirdischer hohlraeume mit profilbestaendigen stuetztragwerken
DE3033794B1 (de) * 1980-09-09 1981-05-07 Ferroplast Gesellschaft für Metall- und Kunststoffer- zeugnisse mbH, 4320 Hattingen Schlauch zum Hinterfuellen von Grubenausbau,insbesondere Streckenausbeurahmen im untertaegigen Grubenbetrieb

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2555657A1 (fr) * 1983-11-24 1985-05-31 Genie Civil Coordination Et Systeme de soutenement utilisable en travaux souterrains en complement de cadres, cintres, etc... metalliques ou autres permettant de bloquer efficacement le terrain sur toute la peripherie avec utilisation de manches en tissu permeable a l'eau rempli de coulis pompable elabore a cet usage
EP0203242A1 (fr) * 1985-05-30 1986-12-03 M.I.G.E.C. Procédé et dispositif pour la réalisation d'un soutènement continu d'un souterrain
DE3914950A1 (de) * 1988-09-17 1990-03-22 Gebhardt & Koenig Gesteins Und Grubenausbaugewebeschlauch mit schwachstellen
GB2245011A (en) * 1990-06-13 1991-12-18 Lyndon Derek Bradbury Roadway support
CN110631918A (zh) * 2019-11-22 2019-12-31 中铁九局集团第四工程有限公司 一种隧道侵入接触带长管棚加固稳定性判别方法
CN113446040A (zh) * 2021-07-21 2021-09-28 安徽理工大学 一种填充展开式巷道支护装置及施工方法

Also Published As

Publication number Publication date
US4465405A (en) 1984-08-14
EP0063630B1 (fr) 1985-08-28
ATE15250T1 (de) 1985-09-15
AU8287582A (en) 1982-11-04
CA1179515A (fr) 1984-12-18
DE3171989D1 (en) 1985-10-03

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