EP1803853A1 - Method for creation underground diaphragm walls carried out with control and adjustment of the vertical positions and diaphragm wall so manufactured - Google Patents

Method for creation underground diaphragm walls carried out with control and adjustment of the vertical positions and diaphragm wall so manufactured Download PDF

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Publication number
EP1803853A1
EP1803853A1 EP06425003A EP06425003A EP1803853A1 EP 1803853 A1 EP1803853 A1 EP 1803853A1 EP 06425003 A EP06425003 A EP 06425003A EP 06425003 A EP06425003 A EP 06425003A EP 1803853 A1 EP1803853 A1 EP 1803853A1
Authority
EP
European Patent Office
Prior art keywords
joint
dig
fact
diaphragm
panels
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
EP06425003A
Other languages
German (de)
French (fr)
Other versions
EP1803853B1 (en
EP1803853B8 (en
Inventor
Mauro Grava
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.)
Eurogeo Srl
Original Assignee
Eurogeo Srl
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
Priority to AT06425003T priority Critical patent/ATE444406T1/en
Priority to DE602006009472T priority patent/DE602006009472D1/en
Priority to SI200630521T priority patent/SI1803853T1/en
Priority to ES06425003T priority patent/ES2334700T3/en
Priority to EP06425003A priority patent/EP1803853B8/en
Priority to PL06425003T priority patent/PL1803853T3/en
Application filed by Eurogeo Srl filed Critical Eurogeo Srl
Priority to PT06425003T priority patent/PT1803853E/en
Publication of EP1803853A1 publication Critical patent/EP1803853A1/en
Publication of EP1803853B1 publication Critical patent/EP1803853B1/en
Priority to HR20090659T priority patent/HRP20090659T1/en
Application granted granted Critical
Publication of EP1803853B8 publication Critical patent/EP1803853B8/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
    • E02D13/04—Guide devices; Guide frames
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/13—Foundation slots or slits; Implements for making these slots or slits
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/18—Bulkheads or similar walls made solely of concrete in situ
    • E02D5/185—Bulkheads or similar walls made solely of concrete in situ with flexible joint members between sections

Definitions

  • the invention that we are requesting an industrial patent registration for involves a procedure for making underground diaphragm walls with control and adjustment of the verticality and the diaphragm wall so manufactured.
  • the application field for this invention is geotechnical engineering for special foundations for constructions underground and in particular the construction of diaphragm walls.
  • underground diaphragm walls have been used for years as supports for the dig walls and/or waterproofing the land.
  • the single panels are then lined up along the longest side, either in sequence or alternated.
  • the current techniques used for making the diaphragm walls are:
  • the joint could be faulty and therefore be the cause of leaks even of a certain entity, with the possible removal of the fine part of the soil, with the risk of collapse in the areas and buildings situated near to the intervention point.
  • the technique used to make the diaphragm wall using the procedure provided by the invention would guarantee continuous diaphragm walls, as they are made controlling the verticality and laying flexible joints.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Load-Bearing And Curtain Walls (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Diaphragms And Bellows (AREA)

Abstract

The invention refers to a procedure for constructing diaphragm walls for reinforcing the land and diaphragm wall so manufactured.
The procedure involves constructing diaphragm panels adjacent to each other, continuously controlling and adjusting the verticality (both lengthways and crossways) and subsequently casting the concrete in the dig after positioning an appliance which is fitted with a device to control and adjust the verticality to guarantee perfect adherence between the faces of the joints in adjacent panels.
If required, when faced with extensive pressure or movement of the ground, the procedure provides the use of a flexible joint that guarantees a continuous barrier
The use of the described procedure is essential to guarantee the efficiency of the constructed product.

Description

  • The invention that we are requesting an industrial patent registration for involves a procedure for making underground diaphragm walls with control and adjustment of the verticality and the diaphragm wall so manufactured.
    • TECHNICAL FIELD
  • The application field for this invention is geotechnical engineering for special foundations for constructions underground and in particular the construction of diaphragm walls.
    • BACKGROUND ART AND TECHNICAL PROBLEM TO BE SOLVED
  • In geotechnics, underground diaphragm walls have been used for years as supports for the dig walls and/or waterproofing the land.
  • Traditional procedures involve constructing single elements, called panels, which can be made by casting concrete in a dig of the same size as the panel, and which usually has metal reinforcement.
  • The single panels are then lined up along the longest side, either in sequence or alternated.
  • The current techniques used for making the diaphragm walls are:
    1. a) Diaphragm wall with a normal, temporary joint, made between a succession of panels with a shaped pipe or metal sections of various shapes;
    2. b) Diaphragm wall with a joint between the succession of panels, waterproofed by injecting various types of mixtures in various manners on the outside of the diaphragm wall at the point of the joint;
    3. c) Diaphragm wall with a joint between the succession of panels, waterproofed by injecting various types of mixtures in the cavity that is made vertically in correspondence with the join, which is made by perforating the diaphragm walls or by burying pipes in the cast.
    4. d) Diaphragm wall with a joint between successive panels, waterproofed by burying a waterproof element of varying shape, size and material in the cast in correspondence with the join.
  • The solutions given above all have critical points, which, generally and in certain conditions, make the product ineffective.
    • Solution a) is characterised by the fact that the joints are, in fact, an "interruption in the cast" which, under the deformation pressure induced in the diaphragm panels, during the digging work and/or after the construction is in place, could create water percolation from outside the diaphragm wall,
    • Solution b) first of all has a technical-quality problem: the fact the waterproofing substance does not penetrate inside the joint, and the waterproofing substance does not adhere perfectly to the wall of the diaphragm meaning that the joints are not guaranteed as efficient.
  • It is also a very costly operation, as it is lengthy to carry out and involves working in a number of phases.
  • Solutions c) and d) are theoretically practicable, but require four conditions for them to be effective, which traditional procedures do not guarantee:
    1. 1. The panels must be vertical;
    2. 2. The faces of the joint must be clean;
    3. 3. The surfaces of the joint must be smooth;
    4. 4. The drilling and pipe burying is performed with very narrow geometric tolerances.
  • If one or more of these conditions is not satisfied, the joint could be faulty and therefore be the cause of leaks even of a certain entity, with the possible removal of the fine part of the soil, with the risk of collapse in the areas and buildings situated near to the intervention point.
  • In all cases, the solutions do not consider the geometric tolerances in applying the intervention in the areas of the joint. In cases c) and d), the material the joint is made of is not flexible which is needed to absorb the deformation in the diaphragm wall during the various digging phases.
    • AIM OF THE INVENTION
  • The technique used to make the diaphragm wall using the procedure provided by the invention, would guarantee continuous diaphragm walls, as they are made controlling the verticality and laying flexible joints.
  • The effectiveness of the joints is guaranteed by the following features of the diaphragm wall: verticality and coplanarity of the panels, clean even surfaces on the joints between adjacent panels.
  • The effectiveness of the joints is also guaranteed even when the diaphragm wall is subject to stress which could cause deformation, thanks to the flexibility of the joint which adapts to the deformation without breaking.
    • PROCEDURE AND DESCRIPTION OF THE DRAWINGS
  • The construction sequence provides the following phases, which are shown in the diagram in figure 1:
    • PHASE (1): Dig the opening panel using the special digging equipment; Figure 1 (1);
    • PHASE (2): Lay the special metal equipment in the dig (joint holder) which carries the joint; Figure 1 (2)
    • PHASE 3: Lay the reinforcement and cast the diaphragm wall panel; Figure 1 (3)
    • PHASE 4: Dig the adjacent diaphragm wall panel in the same manner as phase 1, controlling and adjusting the verticality using the joint holder which is fitted with a control device that continuously controls the verticality and another device to adjust it if needed; Figure 1 (4);
    • PHASE 5: Removal of the joint holder when the dig is finished, releasing the flexible joint and leaving a clean surface in contact with the constructed panel, ready for casting the next one. Along the opposite shorter side, position the joint holder with a new joint as described in the procedure in phase 2; Figure 1 (5);
    • PHASE 6: lay the reinforcement and cast the concrete; Figure 1 (6).
  • This diaphragm wall has the verticality controlled and adjusted and has the following technical advantages:
    1. 1) Continuity in the various diaphragm wall panels
    2. 2) Correct and even adhesion of the concrete in the area around the joint on the previously constructed panel;
    3. 3) Long-lasting watertight diaphragm walls around the joint, thanks to the very strong flexible vertical joint, which resists even when the diaphragm walls deform.

Claims (7)

  1. Procedure for the construction of continuous vertical diaphragm walls formed of panels that are made with control and adjustment of the verticality of the dig, using the metal joint holder on the shorter side.
  2. Procedure according to claim 1), characterised by the fact that the dig is made using a hydraulic bucket with a metal guide on the bottom side of the dig, adjacent to the previously constructed panel; the metal device follows the entire depth of the dig.
  3. Procedure according to claim 2, characterised by the fact the verticality is controlled and adjusted during the digging phases using a metal guide (joint holder) which has devices installed for controlling the verticality and adjusting the geometry.
  4. Procedure according to claim 1) characterised by the fact that it provides digging the ground down to the planned depth, removing the joint holder by an oil-pressure device when the digging is finished, and repositioning the joint holder on the opposite side of the dig.
  5. Procedure according to claim 1) characterised by the fact that it provides a flexible joint in the joint holder, positioning the joint holder in the dig on the short side opposite the previously constructed panel and releasing the joint after the concrete has been cast and hardened.
  6. Diaphragm wall made according to the procedure described in claims 1-2-3-4-5 characterised by the fact the final product has the following features: vertical panels; coplanar panels; clean faces on the joint between adjacent panels; even surfaces on the joint.
  7. Diaphragm wall made according to the procedure described in claims 1-2-3-4-5 characterised by the fact the diaphragm wall is continuous because a flexible joint is laid joined to the two adjacent panels.
EP06425003A 2006-01-03 2006-01-03 Method for creation underground diaphragm walls carried out with control and adjustment of the vertical positions and diaphragm wall so manufactured Active EP1803853B8 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SI200630521T SI1803853T1 (en) 2006-01-03 2006-01-03 Method for creation underground diaphragm walls carried out with control and adjustment of the vertical positions and diaphragm wall so manufactured
ES06425003T ES2334700T3 (en) 2006-01-03 2006-01-03 PROCEDURE FOR THE CREATION OF UNDERGROUND CURTAIN WALLS CARRIED OUT WITH CONTROL AND ADJUSTMENT OF VERTICAL POSITIONS, AND CURTAIN WALL MANUFACTURED IN THIS MODE.
EP06425003A EP1803853B8 (en) 2006-01-03 2006-01-03 Method for creation underground diaphragm walls carried out with control and adjustment of the vertical positions and diaphragm wall so manufactured
PL06425003T PL1803853T3 (en) 2006-01-03 2006-01-03 Method for creation underground diaphragm walls carried out with control and adjustment of the vertical positions and diaphragm wall so manufactured
AT06425003T ATE444406T1 (en) 2006-01-03 2006-01-03 METHOD FOR PRODUCING SLOT WALLS WITH CHECKING AND CORRECTING THE VERTICAL POSITION AND SLOT WALL PRODUCED IN THIS WAY
PT06425003T PT1803853E (en) 2006-01-03 2006-01-03 Method for creation underground diaphragm walls carried out with control and adjustment of the vertical positions and diaphragm wall so manufactured
DE602006009472T DE602006009472D1 (en) 2006-01-03 2006-01-03 Method for the production of diaphragm walls with control and correction of the vertical position and diaphragm wall produced in this way
HR20090659T HRP20090659T1 (en) 2006-01-03 2009-12-11 Method for creation underground diaphragm walls carried out with control and adjustment of the vertical positions and diaphragm wall so manufactured

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06425003A EP1803853B8 (en) 2006-01-03 2006-01-03 Method for creation underground diaphragm walls carried out with control and adjustment of the vertical positions and diaphragm wall so manufactured

Publications (3)

Publication Number Publication Date
EP1803853A1 true EP1803853A1 (en) 2007-07-04
EP1803853B1 EP1803853B1 (en) 2009-09-30
EP1803853B8 EP1803853B8 (en) 2010-05-19

Family

ID=36072015

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06425003A Active EP1803853B8 (en) 2006-01-03 2006-01-03 Method for creation underground diaphragm walls carried out with control and adjustment of the vertical positions and diaphragm wall so manufactured

Country Status (8)

Country Link
EP (1) EP1803853B8 (en)
AT (1) ATE444406T1 (en)
DE (1) DE602006009472D1 (en)
ES (1) ES2334700T3 (en)
HR (1) HRP20090659T1 (en)
PL (1) PL1803853T3 (en)
PT (1) PT1803853E (en)
SI (1) SI1803853T1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013205765A1 (en) 2013-04-02 2014-10-02 Gud Geotechnik Und Dynamik Consult Gmbh Quality assurance system for diaphragm wall joints
US9371623B2 (en) 2011-07-14 2016-06-21 Ccmj Systems Ltd Diaphragm wall apparatus and methods

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201706643D0 (en) 2017-04-26 2017-06-07 Ccmj Systems Ltd Diaphragm walls
GB2571097B (en) 2018-02-15 2021-08-25 Ccmj Systems Ltd Shear key former apparatus and method(s)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2473091A1 (en) * 1980-01-08 1981-07-10 Sif Entreprise Bachy Mechanically stripped end shutter for underground concrete walls - has inflatable tubes forcing shutter free of set concrete and forming shaped face for next section
FR2617881A1 (en) * 1987-07-10 1989-01-13 Spie Batignolles Process for forming a cast wall in the ground and shuttering intended particularly for its execution
EP0580926A1 (en) * 1992-07-31 1994-02-02 ING. GIOVANNI RODIO & C. IMPRESA COSTRUZIONI SPECIALI S.P.A. Sealing joint in diaphragms formed by concrete panels cast in situ and a process for building said diaphragms
FR2825393A1 (en) * 2001-06-01 2002-12-06 Cie Du Sol Bucket hoist crane has positional correction via bucket runners controlled by angle sensors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2473091A1 (en) * 1980-01-08 1981-07-10 Sif Entreprise Bachy Mechanically stripped end shutter for underground concrete walls - has inflatable tubes forcing shutter free of set concrete and forming shaped face for next section
FR2617881A1 (en) * 1987-07-10 1989-01-13 Spie Batignolles Process for forming a cast wall in the ground and shuttering intended particularly for its execution
EP0580926A1 (en) * 1992-07-31 1994-02-02 ING. GIOVANNI RODIO & C. IMPRESA COSTRUZIONI SPECIALI S.P.A. Sealing joint in diaphragms formed by concrete panels cast in situ and a process for building said diaphragms
FR2825393A1 (en) * 2001-06-01 2002-12-06 Cie Du Sol Bucket hoist crane has positional correction via bucket runners controlled by angle sensors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9371623B2 (en) 2011-07-14 2016-06-21 Ccmj Systems Ltd Diaphragm wall apparatus and methods
DE102013205765A1 (en) 2013-04-02 2014-10-02 Gud Geotechnik Und Dynamik Consult Gmbh Quality assurance system for diaphragm wall joints

Also Published As

Publication number Publication date
PL1803853T3 (en) 2010-03-31
SI1803853T1 (en) 2010-03-31
EP1803853B1 (en) 2009-09-30
HRP20090659T1 (en) 2010-07-31
ES2334700T3 (en) 2010-03-15
DE602006009472D1 (en) 2009-11-12
PT1803853E (en) 2010-01-07
EP1803853B8 (en) 2010-05-19
ATE444406T1 (en) 2009-10-15

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