EP0847462B1 - Nouvelle paroi drainante, procede pour sa realisation et element mis en oeuvre - Google Patents

Nouvelle paroi drainante, procede pour sa realisation et element mis en oeuvre Download PDF

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Publication number
EP0847462B1
EP0847462B1 EP97930589A EP97930589A EP0847462B1 EP 0847462 B1 EP0847462 B1 EP 0847462B1 EP 97930589 A EP97930589 A EP 97930589A EP 97930589 A EP97930589 A EP 97930589A EP 0847462 B1 EP0847462 B1 EP 0847462B1
Authority
EP
European Patent Office
Prior art keywords
trench
intermediate elements
excavation
elements
embedded
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.)
Expired - Lifetime
Application number
EP97930589A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0847462A1 (fr
Inventor
Alain Deniau
Alain Soriano
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 Bachy France
Original Assignee
Soletanche Bachy France
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 Soletanche Bachy France filed Critical Soletanche Bachy France
Publication of EP0847462A1 publication Critical patent/EP0847462A1/fr
Application granted granted Critical
Publication of EP0847462B1 publication Critical patent/EP0847462B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B11/00—Drainage of soil, e.g. for agricultural purposes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains

Definitions

  • the invention relates to a new draining wall, a process for its realization and an element implemented in this achievement.
  • the draining wall technique is well known. It is a technique derived from that of the diaphragm wall for make continuous draining trenches at depths (10-20 meters and more) impossible to reach with conventional earthmoving techniques.
  • the realization is done in excavation under excavation fluid and by gravelling successive elementary panels which are find themselves in communication as the progress of the construction site.
  • a temporary formwork which allows to retain the filter material (gravel) from the N panel during excavation of the N + 1 panel. This formwork is then extracted when the graveling of panels N and N + 1 is finished on either side of said formwork.
  • the current technique does not allow a setting fractional, progressive service during the phase of execution.
  • the present invention aims to remedy these problems and disadvantages by proposing a new type of wall draining.
  • the present invention is based on the idea of making panel by panel the draining trench while providing means to put in communication later the constituent panels of the trench in to make it operational.
  • the invention relates to a wall drainage consisting of a plurality of panels elementary (P) filled with a filter material (10), characterized in that said panels are separated from each other others by intermediate elements (J) of hardened material, molded in the ground and in that an element (2) connecting each pair of adjacent panels is embedded in the part bottom of each intermediate element.
  • P panels elementary
  • J intermediate elements
  • the hardened material of the intermediate elements can be cut, the excavation step (d) is made so that the excavation tool comes cut the sides of the intermediate elements J1 and J2 contiguous to said trench, and the excavation step g) is made so that the excavation tool comes to intersect the sides of the intermediate elements J2 and J3 contiguous to said trench.
  • the steps d) and g) are carried out without intersecting the sides of the intermediate elements J1 and J2, and J2 and J3, respectively, the elimination of the closed end portions eliminable elements embedded in the base of the elements intermediaries being performed in another way appropriate, for example by a means or tool provided for in the perennial central part of the tubular or introduced element into it from the ground.
  • the material constituting the intermediate elements does not need to be traceable, of course.
  • the process can further understand the laying of drainage pipes perforated connecting the tubular elements of two elements successive intermediaries and serving as collectors, before the placement of the filter material.
  • the invention finally relates to a useful tubular element for the implementation of the process of the invention and / or the realization of a draining trench according to the invention, which has a perennial central tubular part in one relatively strong material (e.g. metal), closed tubular end parts removable in one relatively fragile material (e.g. material plastic), and a temporary closure means for said central part.
  • a perennial central tubular part in one relatively strong material (e.g. metal)
  • closed tubular end parts removable in one relatively fragile material (e.g. material plastic)
  • a temporary closure means for said central part e.g. metal
  • said means shutter can be operated from the ground surface.
  • said means shutter includes an inflatable member, such as a balloon, which can be inflated and deflated from the surface of the ground.
  • a valve can be used as a means reversible shutter.
  • Intermediate elements can have a section transverse of any shape, for example square, rectangular or circular.
  • the dimension of the elements intermediate, perpendicular to the trench can be equal to or greater than the thickness of the draining trench to achieve.
  • a larger width can be interesting, especially on soft ground, to minimize the risk of bypassing of the intermediate element by fluid excavation.
  • the intermediate elements can be made as consequence of the hardening of the excavating fluid when it can be hardened, for example when a grout curable is used as an excavating fluid, or by substitution of a curable material (for example a mortar or plastic concrete) with the excavating fluid when the latter is not curable.
  • a curable material for example a mortar or plastic concrete
  • a curable grout When using a curable grout to make the intermediate elements it can be of any kind as long as it hardens into a hardened cohesive material sufficient for it to play its role as an intermediate element.
  • a grout can be used based on bentonite and cement. The grout once hardened can be easily cut by the excavation tool.
  • Excavation fluids useful for the excavation of elementary trenches between the intermediate elements must be non-hardening and non-clogging.
  • Such fluids can be prepared from well products known commercially available from various suppliers. We can cite, for example, the REVERT® manufactured by the company JOHNSON, distributed by JOHNSON FILTRATION SYSTEMS, Z.I. 86530 Availles. The rheology of these fluids is easily adjustable by following the advice of manufacturers. Non-clogging properties result usually of biodegradability of the fluid.
  • the type of filter material used in the elementary trenches constituting the draining trench is not critical. This material is usually formed from sand, gravel and gravels, including grain sizes and proportions are chosen according to the conditions prevailing on the site of the draining trench. The man of profession will be able to determine an adequate material for each situation.
  • Figures 1 to 6 are schematic sectional views illustrating the various stages of the process of the invention and the final draining trench obtained.
  • Figure 7 is a schematic perspective view of a tubular element, used in the process of the invention.
  • Figures 1 to 6 show the different steps to make a draining slice by the process of the invention.
  • a tubular element 2 illustrated in detail in FIG. 7, comprising a central part 3 in metal in which is threaded, in a centered way, a conduit 4, closed at its ends by lids 5, in plastic material, longer than that of the part 3, but slightly less than the length of each of the excavations E.
  • the element 2 further comprises a tube 6 perpendicular to the central part 3, connected to this and communicating with the interior of the conduit 4 through to adequate holes provided on the central part and the conduit 4 and extending to above the surface of the ground.
  • the element finally comprises an inflatable balloon 7 located at the interior of the conduit 4, to the right of the tube 6, which can be inflated or deflated from the ground surface with a small pipe 8 running through tube 6.
  • Element 2 is oriented substantially parallel to the direction of the trench.
  • Element 1 can rest on the bottom of the excavation on receiving, as shown, but this is not mandatory.
  • the next step is to excavate, under fluid non-hardenable excavation, a basic trench T1 between the intermediate elements J1 and J2 using a suitable tool 9, such as an excavation bucket or equivalent, by making the tool come back into a mess the sides of the intermediate elements J1 and J2 facing the T1 trench.
  • a suitable tool 9 such as an excavation bucket or equivalent
  • the tool breaks notably the ends of the turned plastic pipe 4 towards T1, notably eliminating the lids 5 (FIG. 3).
  • a once the T1 trench is finished, it is filled with a medium filter 10, suitable, while pumping the excavation fluid in order to remove it from T1 (figure 4).
  • a first elementary panel P1 is thus obtained.
  • tubular element is closed during the construction of the T2 trench, at least when the excavation tool arrives at element 2 because, otherwise, the excavating fluid filling T2 would pass through element 2 and would invade the T1 trench previously carried out, which would go against of the aim sought by the invention which is to have only one elementary trench filled with excavating fluid at the time.
  • Each tubular element 2 must be finally unobstructed to ensure that the various elementary panels constituting the draining trench communicate in service.
  • the tubes 6, after extraction of the balloons can find utility as piezometers as well only for the maintenance of the passages between the elementary panels. We can, indeed, use them for send a jet of water or pressurized air to rinse or unclog these passages.
  • FIG. 6 an alternative embodiment has been illustrated. optional including a duct positioning step perforated 11 acting as collectors between the elements 2. This optional step is carried out at the end of the excavation of each elementary trench, before spillage of filter material.
  • the location of openings of the tubular elements in the fluid excavation to connect the conduits 11 can be facilitated by a known ultrasonic tracking device in itself.
  • the draining wall can have a thickness of 40-150 cm and a depth of 10 to 20 m and more.
  • Intermediate elements can have 1.5 to 2 m long, and basic trenches can be 4 to 12 m long.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Civil Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Soil Sciences (AREA)
  • Paleontology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Building Environments (AREA)
  • Glass Compositions (AREA)
  • Saccharide Compounds (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Filtration Of Liquid (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Filtering Materials (AREA)
EP97930589A 1996-06-26 1997-06-25 Nouvelle paroi drainante, procede pour sa realisation et element mis en oeuvre Expired - Lifetime EP0847462B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9607945A FR2750442B1 (fr) 1996-06-26 1996-06-26 Nouvelle paroi drainante, procede pour sa realisation et element mis en oeuvre
FR9607945 1996-06-26
PCT/FR1997/001136 WO1997049871A1 (fr) 1996-06-26 1997-06-25 Nouvelle paroi drainante, procede pour sa realisation et element mis en oeuvre

Publications (2)

Publication Number Publication Date
EP0847462A1 EP0847462A1 (fr) 1998-06-17
EP0847462B1 true EP0847462B1 (fr) 2001-03-14

Family

ID=9493438

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97930589A Expired - Lifetime EP0847462B1 (fr) 1996-06-26 1997-06-25 Nouvelle paroi drainante, procede pour sa realisation et element mis en oeuvre

Country Status (15)

Country Link
US (1) US6082928A (xx)
EP (1) EP0847462B1 (xx)
JP (1) JP3192661B2 (xx)
AT (1) ATE199754T1 (xx)
AU (1) AU716745B2 (xx)
DE (1) DE69704253D1 (xx)
ES (1) ES2157585T3 (xx)
FR (1) FR2750442B1 (xx)
HK (1) HK1011553A1 (xx)
ID (1) ID18736A (xx)
MY (1) MY122014A (xx)
NO (1) NO314094B1 (xx)
NZ (1) NZ329762A (xx)
WO (1) WO1997049871A1 (xx)
ZA (1) ZA975612B (xx)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1026328B1 (en) * 1999-02-01 2005-10-19 Van Oord Acz B.V. Method for extracting water from water-containing, poorly permeable soil
NL1011182C2 (nl) * 1999-02-01 2000-08-03 Nbm Amstelland Bouw & Infra B Werkwijze voor het verwijderen van water uit waterhoudende, slecht doorlatende grond.
FR2804449B1 (fr) 2000-02-02 2002-12-13 Soletanche Bachy France Perfectionnement a la realisation de paroi drainante
FR2955125B1 (fr) 2010-01-14 2012-03-02 Soletanche Freyssinet Structure de drainage prefabriquee destinee a la realisation d'une paroi drainante souterraine
KR101697017B1 (ko) 2015-08-25 2017-01-17 현대건설주식회사 자동탈형 거푸집을 이용한 콘크리트 연속벽 수중 시공 방법

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US245721A (en) * 1881-08-16 Construction of roads
US320667A (en) * 1885-06-23 Drain and drain-tile
US1051344A (en) * 1912-06-03 1913-01-21 A M Chambers Drain-box for railway-crossings.
DE2014368A1 (de) * 1969-03-26 1970-10-01 Smet, Hugo, Dessel (Belgien) Verfahren und Vorrichtung zum Herstellen einer dünnen, filtrierenden oder nicht filtrierenden, von einem senkrechten Bohrloch ausgehenden Wand im Erdboden
US3823825A (en) * 1973-06-15 1974-07-16 J Bergles Water treatment filter bed for sewage systems
FR2265920A1 (en) * 1974-03-29 1975-10-24 Keller Gmbh Johann Underground drainage wall construction - uses set of interconnected holes formed by bladed vibratory tool filled with cement
US4863312A (en) * 1983-07-26 1989-09-05 Finic, B. V. Underground leachate and pollutant drainage barrier system
DE3340725A1 (de) * 1983-11-10 1985-05-23 Winfried 3062 Brückeburg Rosenstock Verfahren zur abschnittsweisen herstellung einer schlitzwand
US4543016A (en) * 1983-11-14 1985-09-24 Tallard Gilbert R Underground leachate barrier and method of making same
HUT46088A (en) * 1986-12-12 1988-09-28 Csaba Asszonyi Method for constructing supporting ribs, relief ribs and deep reliefs by using of pneumatic sectionalizing devices and diaphragm elements
US4793728A (en) * 1987-05-13 1988-12-27 Construction Supply, Inc. Subsurface water drainage system

Also Published As

Publication number Publication date
NO980825L (no) 1998-04-24
AU3448597A (en) 1998-01-14
AU716745B2 (en) 2000-03-02
NO980825D0 (no) 1998-02-26
EP0847462A1 (fr) 1998-06-17
MY122014A (en) 2006-03-31
US6082928A (en) 2000-07-04
ATE199754T1 (de) 2001-03-15
HK1011553A1 (en) 1999-07-16
FR2750442A1 (fr) 1998-01-02
FR2750442B1 (fr) 1998-09-11
NZ329762A (en) 1999-08-30
ES2157585T3 (es) 2001-08-16
JPH11513086A (ja) 1999-11-09
JP3192661B2 (ja) 2001-07-30
ZA975612B (en) 1998-01-23
NO314094B1 (no) 2003-01-27
DE69704253D1 (de) 2001-04-19
WO1997049871A1 (fr) 1997-12-31
ID18736A (id) 1998-05-07

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