EP0305259A1 - Process for retaining lateral walls of deep excavations - Google Patents

Process for retaining lateral walls of deep excavations Download PDF

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Publication number
EP0305259A1
EP0305259A1 EP88402056A EP88402056A EP0305259A1 EP 0305259 A1 EP0305259 A1 EP 0305259A1 EP 88402056 A EP88402056 A EP 88402056A EP 88402056 A EP88402056 A EP 88402056A EP 0305259 A1 EP0305259 A1 EP 0305259A1
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EP
European Patent Office
Prior art keywords
excavation
ring
retaining walls
slab
ring slab
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
EP88402056A
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German (de)
French (fr)
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EP0305259B1 (en
Inventor
Jacob Ward
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.)
Soletanche SA
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Soletanche SA
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Application filed by Soletanche SA filed Critical Soletanche SA
Priority to AT88402056T priority Critical patent/ATE59683T1/en
Publication of EP0305259A1 publication Critical patent/EP0305259A1/en
Application granted granted Critical
Publication of EP0305259B1 publication Critical patent/EP0305259B1/en
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them

Definitions

  • the present invention relates to a new method for butting or laterally holding the vertical walls of deep excavations so as to allow earthworks without causing the destruction of these walls.
  • the vertical walls are butted or held in place during the excavation by performing, between different stages of the excavation, at least one floor which can thus withstand horizontal forces exerted by the ground outside the vertical walls.
  • the method according to the invention makes it possible to carry out the search in a simpler, faster and more economical manner.
  • the subject of the present invention is a method for abutting or maintaining the vertical retaining walls of deep excavations, characterized in that after having freely carried out the excavation to a depth compatible with the resistance of the retaining walls, it is carried out on the bottom from the excavation a ring slab which bears by its periphery against the vertical retaining walls and which rests on the bottom of the excavation; that after the solidification of this slab-ring it is joined to support it at the upper part of the retaining walls using guy lines; then continue the excavation from the inside of the ring slab to the lower end of the structure.
  • the ring slab which allows during the excavation to ensure the recovery of the horizontal forces exerted by the ground on the retaining walls, is used to form part of an intermediate floor.
  • Figure 1 a sectional view of a work being excavated in accordance with the invention.
  • the retaining walls 1 were made on the periphery of the structure before starting the excavation.
  • a ring slab 3 is then produced which rests on the bottom of the excavation and which bears by its periphery against the retaining walls 1, leaving in its center a large opening 4 as can be seen on the FIG. 2 when the ring slab 3 has taken hold, it is connected by guy wires 5, preferably articulated at each of their ends, to the upper part of the retaining walls.
  • the lower ends of the shrouds 5 are subject to the ring slab 3 at in the vicinity of the opening 4, but it goes without saying that the shrouds could be secured at different points of the ring slab 3.
  • the ring slab 3 of which it only remains to close the central part according to a conventional technique thus serves as a floor element.
  • the method according to the invention allows excavations in deep structures to be carried out in a simple and economical manner, and without it being necessary to carry out deep support points at the start of the excavation to support floor which is made first to support the horizontal forces exerted by the ground on the retaining walls, in order to allow the continuation of the excavation.

Abstract

The invention relates to a process for propping or supporting the vertical support walls of deep ditches. After having freely constructed the ditch, to a depth compatible with the resistance of the support walls (1), a ring-shaped plate (3) is provided at the bottom of the ditch, which bears at its periphery against the vertical support walls (1), and which rests on the bottom of the ditch; after the setting of this ring-shaped plate (3), it is attached to the upper part of the support walls (1) for being supported, by means of braces (5); and then, the ditchs is continued, through the orifice (4) of the ring-shaped plate (3), down to the bottom of the work.

Description

La présente invention a pour objet un nouveau procédé pour butonner ou maintenir latéralement les parois verticales de fouilles profon­des de manière à permettre le terrassement sans entraîner la destruction de ces parois.The present invention relates to a new method for butting or laterally holding the vertical walls of deep excavations so as to allow earthworks without causing the destruction of these walls.

Il est connu pour réaliser des ouvrages dans le sol qui peuvent présenter des profondeurs importantes, de réaliser les parois verticales de soutènement desdits ouvrages en forant des tranchées sous une boue de bentonite qui maintient les parois des tranchées, puis en substituant la boue par du coulis ou du béton lequel, en durcissant, réalise les parois verticales de l'ouvrage avant que l'on procède au terrassement de son vo- lume intérieur.It is known to make works in the ground which can have significant depths, to realize the vertical retaining walls of said works by drilling trenches under a bentonite mud which maintains the walls of the trenches, then by replacing the mud with grout or concrete which, when hardening, forms the vertical walls of the structure before the earthwork of its interior volume is carried out.

Selon la technique actuellement employée, on assure le butonnage ou maintien latéral des parois verticales durant la fouille en réalisant entre différentes étapes de la fouille au moins un plancher qui peut ainsi supporter des efforts horizontaux exercés par le terrain à l'extérieur des parois verticales.According to the currently used technique, the vertical walls are butted or held in place during the excavation by performing, between different stages of the excavation, at least one floor which can thus withstand horizontal forces exerted by the ground outside the vertical walls.

Cette manière de faire implique que l'on réalise au préalable les appuis qui sont nécessaires pour supporter les planchers intermédiaires.This way of proceeding implies that the supports which are necessary to support the intermediate floors are carried out beforehand.

Ces appuis sont obtenus en forant des puits qui vont jusqu'à la base du bâtiment et dans lesquels on introduit des poteaux préfondés et qui permettent de supporter les planchers intermédiaires.These supports are obtained by drilling wells which go to the base of the building and into which pre-ground posts are introduced and which allow the intermediate floors to be supported.

Le procédé selon l'invention permet de réaliser la fouille d'une manière plus simple, plus rapide et plus économique.The method according to the invention makes it possible to carry out the search in a simpler, faster and more economical manner.

La présente invention a pour objet un procédé pour butonner ou maintenir les parois verticales de soutènement de fouilles profondes, carac­térisé par le fait qu'après avoir réalisé librement la fouille sur une profondeur compatible avec la résistance des parois de soutènement, on réalise sur le fond de la fouille une dalle anneau qui prend appui par sa périphérie contre les parois verticales de soutènement et qui repose sur le fond de la fouille; qu'après la solidification de cette dalle-anneau on la réunit pour la supporter à la partie supérieure des parois de soutènement à l'aide de haubans; puis qu'on poursuit la fouille par l'intérieur de la dalle-anneau jusqu'à l'extrémité inférieure de l'ouvrage.The subject of the present invention is a method for abutting or maintaining the vertical retaining walls of deep excavations, characterized in that after having freely carried out the excavation to a depth compatible with the resistance of the retaining walls, it is carried out on the bottom from the excavation a ring slab which bears by its periphery against the vertical retaining walls and which rests on the bottom of the excavation; that after the solidification of this slab-ring it is joined to support it at the upper part of the retaining walls using guy lines; then continue the excavation from the inside of the ring slab to the lower end of the structure.

Conformément à l'invention, il est avantageux que la dalle anneau qui permet pendant la fouille d'assurer la reprise des efforts horizontaux exercés par le terrain sur les parois de soutènement, soit utilisée pour constituer une partie d'un plancher intermédiaire.According to the invention, it is advantageous that the ring slab which allows during the excavation to ensure the recovery of the horizontal forces exerted by the ground on the retaining walls, is used to form part of an intermediate floor.

Ceci peut être facilement obtenu en positionnant la dalle anneau à une hauteur convenable et en lui donnant une forme correspondant à celle du plancher concerné.This can be easily obtained by positioning the ring slab at a suitable height and giving it a shape corresponding to that of the floor concerned.

Il suffit à la fin de la fouille de faire supporter la dalle anneau par les appuis prévus pour supporter le plancher et d'obturer la partie centrale ouverte de la dalle-anneau après quoi il suffit de démonter les haubans qui maintenaient la dalle-anneau pendant la fouille pour obte­nir le plancher définitif.At the end of the excavation, it suffices to support the ring slab by the supports provided to support the floor and to close the open central part of the ring slab, after which it suffices to dismantle the shrouds which held the ring slab for the excavation to obtain the final floor.

Dans le cas de fouilles de grande profondeur qui nécessitent de reprendre à plusieurs niveaux les efforts horizontaux exercés par le ter­rain sur les parois de soutènement, il est possible selon l'invention de réaliser successivement plusieurs dalles anneaux qui peuvent servir avanta­geusement chacune de plancher intermédiaire.In the case of very deep excavations which require the horizontal forces exerted by the ground on the retaining walls to be taken up at several levels, it is possible according to the invention to make successively several ring slabs which can advantageously each serve as intermediate floors.

Dans le but de mieux faire comprendre l'invention on va en dé­crire maintenant à titre d'illustration et sans aucun caractère limitatif, un mode de réalisation pris comme exemple et représenté sur le dessin an­nexé.In order to better understand the invention will now be described by way of illustration and without any limitation, an embodiment taken as an example and shown in the accompanying drawing.

Sur ce dessin,

  • la figure 1 est une vue schématique en coupe verti­cale d'un ouvrage en sous-sol dans lequel on vient de réaliser la dalle anneau selon l'invention.
  • La figure 2 est une vue de dessus correspondant à la figure 1.
  • La figure 3 est une vue correspondant à la figure 1 après mise en place des haubans.
  • La figure 4 est une vue de dessus correspondant à la figure 3.
  • La figure 5 est une vue en coupe correspondant à la figure 3 après achèvement de la fouille.
  • La figure 6 est une vue de dessus de la figure 5.
On this drawing,
  • Figure 1 is a schematic view in vertical section of a structure in the basement in which we just made the ring slab according to the invention.
  • Figure 2 is a top view corresponding to Figure 1.
  • Figure 3 is a view corresponding to Figure 1 after installation of the shrouds.
  • FIG. 4 is a top view corresponding to FIG. 3.
  • Figure 5 is a sectional view corresponding to Figure 3 after completion of the excavation.
  • Figure 6 is a top view of Figure 5.

On a représenté sur la figure 1 une vue en coupe d'un ouvrage en cours de fouille conformément à l'invention.There is shown in Figure 1 a sectional view of a work being excavated in accordance with the invention.

Selon une technique habituelle on a réalisé sur la périphérie de l'ouvrage les parois de soutènement 1 avant de commencer la fouille.According to a usual technique, the retaining walls 1 were made on the periphery of the structure before starting the excavation.

Lorsque les parois de soutènement ont réalisé leur prise, la fouille a été commencée jusqu'à une certaine profondeur comme représenté sur la figure 1.When the retaining walls have taken hold, the excavation has been started to a certain depth as shown in Figure 1.

Conformément à l'invention on réalise alors une dalle-anneau 3 qui repose sur le fond de la fouille et qui prend appui par sa périphérie contre les parois de soutènement 1 en laissant en son centre une importante ouverture 4 comme on peut le voir sur la figure 2 lorsque la dalle-anneau 3 a effectué sa prise, on la relie par des haubans 5, de préférence articulés à chacune de leurs extrémités, à la partie haute des parois de soutènement.In accordance with the invention, a ring slab 3 is then produced which rests on the bottom of the excavation and which bears by its periphery against the retaining walls 1, leaving in its center a large opening 4 as can be seen on the FIG. 2 when the ring slab 3 has taken hold, it is connected by guy wires 5, preferably articulated at each of their ends, to the upper part of the retaining walls.

Dans le mode de réalisation représenté sur le dessins, les extré­mités inférieures des haubans 5 sont assujetties à la dalle anneau 3 au voisinage de l'ouverture 4, mais il va de soi que les haubans pourraient être assujettis en différents points de la dalle anneau 3.In the embodiment shown in the drawings, the lower ends of the shrouds 5 are subject to the ring slab 3 at in the vicinity of the opening 4, but it goes without saying that the shrouds could be secured at different points of the ring slab 3.

Cette opération ainsi terminée, il suffit conformément à l'inven­tion, de procéder ensuite à la fouille de la partie inférieure de l'ouvrage pour atteindre son niveau inférieur 6.This operation thus completed, it suffices in accordance with the invention to then search the lower part of the structure to reach its lower level 6.

L'exécution de cette deuxième partie de la fouille se trouve grandement facilitée par l'existence de l'ouverture 4 de grandes dimen­sions, qui permet un enlèvement facile des déblais.The execution of this second part of the excavation is greatly facilitated by the existence of the large opening 4, which allows easy removal of the cuttings.

Lorsque la fouille est terminée, comme représenté sur les figures 5 et 6, il est alors possible de procéder à la construction des planchers intermédiaires, et de réaliser les points d'appui qui soutiennent la dalle-anneau 3, ce qui permet de démonter les haubans 5.When the excavation is finished, as shown in FIGS. 5 and 6, it is then possible to proceed with the construction of the intermediate floors, and to produce the support points which support the ring slab 3, which makes it possible to dismantle the guy lines 5.

La dalle-anneau 3 dont il ne reste plus qu'à obturer la partie centrale selon une technique conventionnelle sert ainsi d'élément de plan­cher.The ring slab 3 of which it only remains to close the central part according to a conventional technique thus serves as a floor element.

On voit que le procédé selon l'invention permet d'une manière simple et économique la réalisation de fouilles dans des ouvrages profonds, et sans qu'il soit nécessaire de réaliser dès le début de la fouille de points d'appui profonds pour soutenir le plancher qui est réalisé en pre­mier pour soutenir les efforts horizontaux exercés par le terrain sur les parois de soutènement, afin de permettre la poursuite de la fouille.It can be seen that the method according to the invention allows excavations in deep structures to be carried out in a simple and economical manner, and without it being necessary to carry out deep support points at the start of the excavation to support floor which is made first to support the horizontal forces exerted by the ground on the retaining walls, in order to allow the continuation of the excavation.

Il est bien entendu que le mode de réalisation qui a été décrit ci-dessus ne présente aucune caractère limitatif et qu'il pourra recevoir toutes modifications désirables sans sortir pour cela du cadre de l'inven­tion.It is understood that the embodiment which has been described above does not have any limiting nature and that it can receive any desirable modifications without departing from the scope of the invention.

Tout d'abord il va de soi que bien que l'ouvrage ait été représen­té de forme parallèlépipédique, l'invention s'applique à des ouvrages dont la forme peut être quelconque.First of all, it goes without saying that although the work has been shown in a parallelepiped shape, the invention applies to works whose shape may be arbitrary.

De même on ne sortirait pas de cadre de l'invention en supportant la dalle anneau pendant la poursuite de la fouille à l'aide de haubans placés différemment.Likewise, it would not go beyond the ambit of the invention to support the ring slab during the continuation of the excavation with the help of guy wires placed differently.

Claims (2)

1. Procédé pour butonner ou maintenir les parois verticales de soutè­nement de fouilles profondes, caractérisé par le fait qu'après avoir réali­sé librement la fouille sur une profondeur compatible avec la résistance des parois de soutènement (1), on réalise, sur le fond de la fouille, une dalle-anneau (3) qui prend appui par sa périphérie contre les parois verti­cales de soutènement (1) et qui repose sur le fond de la fouille ; qu'après la solification de cette dalle-anneau (3), on la réunit pour la supporter, à la partie supérieure des parois de soutènement (1) à l'aide de haubans (5) ; puis qu'on poursuit la fouille par l'orifice (4) de la dalle-anneau (3) jusqu'au fond (6) de l'ouvrage.1. Method for abutting or maintaining the vertical retaining walls of deep excavations, characterized in that after having freely carried out the excavation to a depth compatible with the resistance of the retaining walls (1), the bottom of the excavation, a ring slab (3) which bears by its periphery against the vertical retaining walls (1) and which rests on the bottom of the excavation; that after the solification of this ring slab (3), it is joined to support it, at the upper part of the retaining walls (1) using guy lines (5); then continue the excavation through the orifice (4) of the ring slab (3) to the bottom (6) of the structure. 2. Procédé selon la revendication 1, caractérisé par le fait que la dalle-anneau (3) est utilisée pour constituer une partie d'un plancher intermédiaire et que, pour cela, on la fait reposer sur des appuis réalisés à cet effet après quoi on enlève les haubans (5).2. Method according to claim 1, characterized in that the ring slab (3) is used to form part of an intermediate floor and that, for this, it is made to rest on supports made for this purpose after which we remove the shrouds (5).
EP88402056A 1987-08-07 1988-08-05 Process for retaining lateral walls of deep excavations Expired - Lifetime EP0305259B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88402056T ATE59683T1 (en) 1987-08-07 1988-08-05 METHOD OF SUPPORTING THE SIDE WALLS OF DEEP PITS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8711308 1987-08-07
FR8711308A FR2619139B1 (en) 1987-08-07 1987-08-07 METHOD FOR MAINTAINING SIDE WALLS OF DEEP SEARCHES

Publications (2)

Publication Number Publication Date
EP0305259A1 true EP0305259A1 (en) 1989-03-01
EP0305259B1 EP0305259B1 (en) 1991-01-02

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Application Number Title Priority Date Filing Date
EP88402056A Expired - Lifetime EP0305259B1 (en) 1987-08-07 1988-08-05 Process for retaining lateral walls of deep excavations

Country Status (12)

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US (1) US4900197A (en)
EP (1) EP0305259B1 (en)
JP (1) JPH01131723A (en)
AT (1) ATE59683T1 (en)
CA (1) CA1292363C (en)
CY (1) CY1714A (en)
DE (2) DE305259T1 (en)
ES (1) ES2008663B3 (en)
FR (1) FR2619139B1 (en)
HK (1) HK88793A (en)
MC (1) MC1971A1 (en)
SG (1) SG48693G (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6821057B1 (en) * 2000-04-05 2004-11-23 Maksim Kadiu Magnetic shoring device
US7048471B2 (en) * 2000-04-05 2006-05-23 Maksim Kadiu Shoring device
KR100628900B1 (en) * 2000-04-25 2006-09-27 후지쯔 가부시끼가이샤 Method of mounting semiconductor chip
US7056067B2 (en) * 2003-10-03 2006-06-06 Max Kadiu Trench shoring device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2133055A5 (en) * 1971-04-07 1972-11-24 Saunier Duval
GB1405879A (en) * 1971-10-08 1975-09-10 Kennedy F E Building of underground constructions
CA1222384A (en) * 1985-11-22 1987-06-02 Boris Netupsky Retaining wall structure

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Publication number Priority date Publication date Assignee Title
SU142979A1 (en) * 1960-10-10 1960-11-30 Г.С. Пиньковский The method of installation of executions in the shaft of vertical shafts
US3212270A (en) * 1961-11-09 1965-10-19 Ben Construction Company Safety device for excavations
DE1807987A1 (en) * 1968-11-06 1970-06-11 Mannesmann Ag Sink bell
DE2325758A1 (en) * 1973-05-21 1974-12-05 Held & Francke Bau Ag METHOD FOR CONSTRUCTION OF A BUILDING, IN PARTICULAR AN UNDERGROUND CONSTRUCTION
JPS5919204B2 (en) * 1981-05-23 1984-05-04 株式会社竹中工務店 Underground excavation method
JPS61109827A (en) * 1984-10-31 1986-05-28 Takenaka Komuten Co Ltd Construction of basement
US4685837A (en) * 1986-06-09 1987-08-11 Cicanese William C Portable safety trench and pit form system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2133055A5 (en) * 1971-04-07 1972-11-24 Saunier Duval
GB1405879A (en) * 1971-10-08 1975-09-10 Kennedy F E Building of underground constructions
CA1222384A (en) * 1985-11-22 1987-06-02 Boris Netupsky Retaining wall structure

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 10, no. 295 (M-523)[2351], 7 octobre 1986, page 110 M 523; & JP-A-61 109 827 (TAKENAKA KOMUTEN CO. LTD) 28-05-1986 *

Also Published As

Publication number Publication date
CA1292363C (en) 1991-11-26
DE3861365D1 (en) 1991-02-07
CY1714A (en) 1994-05-06
MC1971A1 (en) 1989-09-29
JPH01131723A (en) 1989-05-24
DE305259T1 (en) 1989-10-05
EP0305259B1 (en) 1991-01-02
HK88793A (en) 1993-09-03
FR2619139B1 (en) 1989-11-17
JPH0569930B2 (en) 1993-10-04
ATE59683T1 (en) 1991-01-15
US4900197A (en) 1990-02-13
ES2008663B3 (en) 1991-06-16
FR2619139A1 (en) 1989-02-10
SG48693G (en) 1993-07-09
ES2008663A4 (en) 1989-08-01

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