CN108035337B - The construction method of a kind of diaphram wall and applied to the connector in this method - Google Patents

The construction method of a kind of diaphram wall and applied to the connector in this method Download PDF

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Publication number
CN108035337B
CN108035337B CN201711363123.1A CN201711363123A CN108035337B CN 108035337 B CN108035337 B CN 108035337B CN 201711363123 A CN201711363123 A CN 201711363123A CN 108035337 B CN108035337 B CN 108035337B
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connector
width
diaphram
diaphragm
reinforcement cage
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CN201711363123.1A
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CN108035337A (en
Inventor
杨永胜
仇圣华
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Shanghai Institute of Technology
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Shanghai Institute of Technology
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/18Bulkheads or similar walls made solely of concrete in situ
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/16Arrangement or construction of joints in foundation structures
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/02Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water

Abstract

The invention belongs to the device and method of construction engineering technical field, the construction method of the connector and diaphram wall for diaphram wall is provided.The connector is connect with U-shaped steel board bottom portion along symmetrical axis direction by U-shaped steel plate and "-" type steel plate combination, "-" type steel plate one end.The construction method of diaphram wall is that connector is arranged in two width diaphragm wall seam crossings, the connector is laterally disposed in diaphragm wall, banding steel cage side welding point "-" type end, the other side is in convex, before back panel steel reinforcement cage convex binding end is embedded in width continuous wall connector U-type groove, back panel concrete continuous wall is poured.The characteristics of one word plate joint of the connector set of invention and H profile steel connector impervious waterproof, connector one end and steel reinforcement cage weld, and keep globality, and the other end makes to increase contact area and break in steel reinforcement cage insertion U slot, enhance waterproof effect;And continuous wall construction method is simple to operation, good water-proof effect, cost relative moderate, great application and promotional value.

Description

The construction method of a kind of diaphram wall and applied to the connector in this method
Technical field
The present invention relates to the device and methods of construction engineering technical field, and in particular to a kind of construction party of diaphram wall Method and applied to the connector in this method.
Background technique
Construction method of underground continuous wall mainly has: slurry → fabrication of reinforcing cage and peace are changed in construction of guide wall → trenching construction → clear bottom Put → connector processing → casting concrete etc..Wherein diaphragm wall seam crossing construction be influence diaphragm wall water-impervious key problem in technology with Technical problem.
Existing common diaphragm wall construction seam waterproof technology has: 1. circular joint Manifold technology;2. "-" type steel plate Or cross-shaped steel plate technique;3. I-steel or king's word technology;4. seam crossing exterior wall rotary churning pile waterproof;5. rubber fastening band.Five is big The feature itself and defect of class connector are as shown in table 1:
Several connector characteristic comparing tables of table 1
Summary of the invention
The present invention be directed to the above-mentioned problems in the prior art, provide a kind of diaphram wall construction method and Applied to the connector in this method.
To achieve the above object, the technical scheme is that
In a first aspect, being used for the connector of diaphram wall
The connector is composed of U-shaped board and "-" type plate, and "-" type plate one end and U-shaped board bottom are along symmetry axis Direction connection;
The weld width is less than diaphragm wall and designs width, remains the width of concrete cover.
The connector is arranged in two width diaphragm wall seam crossings, and the connector is laterally disposed in diaphragm wall, i.e., the described connector Symmetry axis be along diaphragm wall transverse extension direction.
The material of the connector is steel.
The width of the remaining concrete cover is 7cm.
Second aspect, the construction method of diaphram wall
Step 1: pouring and lead wall, then excavate diaphram wall foundation trench, basialveolar length is greater than or equal to steel reinforcement cage design length Spend the length of adjunction head.
Step 2: placing junction block in preparation spoil body position.
Step 3: the first width diaphram wall steel reinforcement cage of binding, the one or both sides medium position of the steel reinforcement cage connect First font end, connector transfer to commitment positions with steel reinforcement cage.
Step 4: before pouring the first width diaphram wall, sand pocket is filled to pouring face or more in the U-type groove side of connector, and with connect Head tube works together prevents concrete from streaming.
Step 5: connector retains thickness of concrete cover, casting concrete continuous walls by soil body side.
Step 6: after the second width foundation trench excavates, extracting the first width continuous wall connector pipe, excavate the soil body in preparation and place back panel Junction block.
Step 7: the second width diaphragm wall steel reinforcement cage of binding, the steel reinforcement cage, one end is in convex, with the first width continuous wall connector U-type groove matching, the medium position of the other end and connector "-" type end are welded;By the second width steel reinforcement cage convex binding end in insertion Formula is put into the first width continuous wall connector U-type groove.
Step 8: before pouring the second width diaphram wall, sand pocket is filled to pouring face or more in the U-type groove side of connector, and with connect Head tube works together prevents concrete from streaming.
Step 9: connector retains thickness of concrete cover, casting concrete continuous walls, wherein diaphragm wall and U by soil body side Type groove contact portion pours the concrete of addition anticracking waterproof additive.
Step 10: remaining width diaphragm wall such as step 6-9 is so successively poured, until diaphram wall pours completely, finally The binding of one width diaphragm wall steel reinforcement cage both ends convex, is put into U-shaped steel slot, pours completion.
Further, the junction block is the shape of a hoof.
Further, the connector stays the concrete cover of 7cm by soil body side.
The construction method of a kind of diaphram wall provided by the invention and applied to the connector in this method, have has as follows Beneficial effect:
(1) connector of the invention has concentrated the advantages of "-" type plate joint waterproof and H profile steel waterproof, in previous width underground There is steel reinforcement cage and steel plate to weld in construction of diaphragm wall, contact connector well with previous width diaphragm wall, be not in burning into sand mud and Cause waterproof bad, and can transferring structure stress, good integrity;Steel reinforcement cage is used in latter width diaphram wall interface It is embedded in the form of U-type groove, the characteristics of globality for having continued I-shaped steel joint completely is strong, waterproof effect, makes latter width diaphragm wall Contacted with preceding width diaphragm wall wide, seepage flow approach is long.
(2) junction block is with concrete because not contacting directly, has solved and has pulled out the time and be difficult to grasp, be difficult to pull out, to disturbance The problem of diaphragm wall disturbance destroys.
(3) compared with I-steel, the steel using amount of a wing plate is reduced, and the structure for combining I-steel and "-" type steel is anti- The characteristics of water, shearing resistance, construction method is simplified, significantly reduces construction cost, and safe and reliable, excellent effect.
(4) diaphragm wall and U-type groove contact portion pour the concrete of addition anticracking waterproof additive, further to optimize Water-stagnating effect.
(5) shape of a hoof junction block is used in work progress, is that concrete streams in order to prevent.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of apparatus of the present invention;
Fig. 2 is the scheme of installation of apparatus of the present invention;
Fig. 3 is that the node construction of apparatus of the present invention completes schematic diagram;
Fig. 4 is apparatus of the present invention and steel reinforcement cage connection schematic diagram.
In figure: 1- connector;2- junction block;3- concrete continuous wall;4- fills sand pocket;5- concrete cover;6- preparation Excavate the soil body;The concrete of 7- addition anticracking waterproof additive;8- steel reinforcement cage.
Specific embodiment
The present invention will be further described with attached drawing combined with specific embodiments below, to help the contents of the present invention are understood.
In a first aspect, being used for the connector of diaphram wall
As shown in Figs 1-4, a kind of connector 1 for diaphram wall of the invention, the connector 1 is by U-shaped board and a word Template is composed, and "-" type plate one end is connect with U-shaped board bottom along symmetrical axis direction;1 width of connector, which is less than, to be connected Continuous wall designs width, remains the width of concrete cover 5.The connector 1 is arranged in two width diaphragm wall seam crossings, the connector 1 is laterally disposed in diaphragm wall, i.e., the symmetry axis of the described connector 1 is along diaphragm wall transverse extension direction.The material of the connector 1 Material is steel.The width of the remaining concrete cover 5 is 7cm.The connector 1 has gathered a word plate joint and H profile steel connects The characteristics of impervious waterproof, connector one end and steel reinforcement cage 8 weld, and keep globality, and the other end makes steel reinforcement cage 8 be embedded in U-type groove steel It is interior, increase contact area and break, effectively plays waterproof action.
Second aspect, the construction method of diaphram wall
Step 1: pouring and lead wall, then excavate diaphram wall foundation trench, basialveolar length is greater than or equal to the design length of steel reinforcement cage 8 Spend the length of adjunction head 1.
Step 2: excavating 6 position of sound production junction block 2 of the soil body in preparation.
Step 3: the first width diaphram wall steel reinforcement cage 8 of binding, the one or both sides medium position welding of the steel reinforcement cage 8 1 "-" type end of connector, connector 1 transfer to commitment positions with steel reinforcement cage 8, as 1 device of permanent waterproof connector.
Step 4: before pouring the first width diaphram wall, sand pocket 4 is filled to pouring face or more in the U-type groove side of connector, and with Junction block 2 works prevent concrete from streaming together.
Step 5: connector 1 retains 5 thickness of concrete cover, casting concrete continuous walls 3 by soil body side.
Step 6: after the second width foundation trench excavates, the first width continuous wall connector pipe 2 is extracted, after the placement of the soil body 6 is excavated in preparation Width junction block 2.
Step 7: the second width diaphragm wall steel reinforcement cage 8 of binding, the steel reinforcement cage 8, one end are in convex, are connect with the first width diaphragm wall First 1 U-type groove matching, the medium position of the other end and 1 "-" type end of connector are welded;Second width steel reinforcement cage, 8 convex is bound into end It is put into the first width continuous wall connector 1U type groove in embedded.
Step 8: before pouring the second width diaphram wall, sand pocket 4 is filled to pouring face or more in the U-type groove side of connector 1, and with Junction block 2 works prevent concrete from streaming together.
Step 9: connector 1 retains 5 thickness of concrete cover, casting concrete continuous walls 3, wherein diaphragm wall by soil body side The concrete seven of addition anticracking waterproof additive is poured with U-type groove contact portion, further optimization water-stagnating effect.
Step 10: remaining width diaphragm wall such as step 6-9 is so successively poured, until buried concrete diaphragm wall 3 has poured Whole, the binding of last 8 both ends convex of width diaphragm wall steel reinforcement cage is put into U-shaped steel slot, pours completion.
The construction method method is simple to operation, good water-proof effect, cost relative moderate, great application and promotion price Value.
Further, the junction block 2 is the shape of a hoof.The shape of a hoof junction block is that concrete streams in order to prevent.
Further, the connector 1 stays the concrete cover 5 of 7cm by soil body side.
Specific case used herein elaborates inventive concept, the explanation of above example is only intended to Help understands core of the invention thought.It should be pointed out that for those skilled in the art, not departing from this Under the premise of inventive concept, any obvious modification, equivalent replacement or the other improvements made should be included in the present invention Protection scope within.

Claims (7)

1. a kind of construction method of diaphram wall, characterized by the following steps:
Step 1: pouring and lead wall, then excavate diaphram wall foundation trench, basialveolar length is greater than or equal to steel reinforcement cage design length and adds The length of connector;Wherein the connector is composed of U-shaped board and "-" type plate, "-" type plate one end and U-shaped board bottom It is connected along symmetrical axis direction;
Step 2: placing junction block in preparation spoil body position;
Step 3: the first width diaphram wall steel reinforcement cage of binding, the one or both sides medium position welding point one of the steel reinforcement cage Font end, connector transfer to commitment positions with steel reinforcement cage;
Step 4: before pouring the first width diaphram wall, sand pocket is filled to pouring face or more, and and junction block in the U-type groove side of connector Working together prevents concrete from streaming;
Step 5: connector retains thickness of concrete cover, casting concrete continuous walls by soil body side;
Step 6: after the second width foundation trench excavates, extracting the first width continuous wall connector pipe, excavate the soil body in preparation and place back panel connector Pipe;
Step 7: the second width diaphragm wall steel reinforcement cage of binding, the steel reinforcement cage, one end are in convex, the U with the first width continuous wall connector Type groove matching, the medium position of the other end and connector "-" type end are welded;By the second width steel reinforcement cage convex binding end in embedded It is put into the first width continuous wall connector U-type groove;
Step 8: before pouring the second width diaphram wall, sand pocket is filled to pouring face or more, and and junction block in the U-type groove side of connector Working together prevents concrete from streaming;
Step 9: connector retains thickness of concrete cover, casting concrete continuous walls, wherein diaphragm wall and U-type groove by soil body side Contact portion pours the concrete of addition anticracking waterproof additive;
Step 10: remaining width diaphragm wall such as step 6-9 is so successively poured, until diaphram wall pours completely, last width The binding of diaphragm wall steel reinforcement cage both ends convex, is put into U-shaped steel slot, pours completion.
2. the construction method of diaphram wall according to claim 1, it is characterised in that: the junction block is the shape of a hoof.
3. the construction method of diaphram wall according to claim 1 or 2, it is characterised in that: the connector leans on soil body side Stay the concrete cover of 7 cm.
4. the connector in a kind of construction method applied to the diaphram wall in claim 1, it is characterised in that: the connector Width is less than diaphragm wall and designs width, remains the width of concrete cover.
5. connector according to claim 4, it is characterised in that: connector setting is described in two width diaphragm wall seam crossings Connector is laterally disposed in diaphragm wall, i.e., the symmetry axis of the described connector is along diaphragm wall transverse extension direction.
6. connector according to claim 5, it is characterised in that: the material of the connector is steel.
7. connector according to claim 6, it is characterised in that: the width of the connector 7 cm small compared with the width of diaphragm wall.
CN201711363123.1A 2017-12-18 2017-12-18 The construction method of a kind of diaphram wall and applied to the connector in this method Active CN108035337B (en)

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Application Number Priority Date Filing Date Title
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Publication number Priority date Publication date Assignee Title
CN110528502A (en) * 2018-05-23 2019-12-03 中铁七局集团西安铁路工程有限公司 A kind of anti-construction method streamed of diaphram wall H-type connector
CN109537574B (en) * 2018-11-23 2021-03-23 福建建中建设科技有限责任公司 Construction process of underground continuous wall in extremely hard rock
CN112392029A (en) * 2020-11-20 2021-02-23 武汉盛士瑞建设工程有限公司 Underground continuous wall and green construction process thereof

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JP3725926B2 (en) * 1995-12-28 2005-12-14 ダウ化工株式会社 Underground wall drainage panel and drainage structure inside the underground wall
CN201288341Y (en) * 2008-10-15 2009-08-12 广东省建筑工程集团有限公司 Underground continuous wall joint
CN202577363U (en) * 2012-03-20 2012-12-05 广州中煤江南基础工程公司 H-shaped steel joint structure of underground diaphragm wall
CN102535519A (en) * 2012-03-20 2012-07-04 广州中煤江南基础工程公司 I-shaped steel joint structure for underground continuous wall and construction method for I-shaped steel joint structure
CN203334322U (en) * 2013-07-15 2013-12-11 中国建筑第二工程局有限公司 Seepage-prevention slurry blocking device of underground continuous wall
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