CN210529677U - Prefabricated underground continuous wall structure - Google Patents

Prefabricated underground continuous wall structure Download PDF

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Publication number
CN210529677U
CN210529677U CN201920535401.5U CN201920535401U CN210529677U CN 210529677 U CN210529677 U CN 210529677U CN 201920535401 U CN201920535401 U CN 201920535401U CN 210529677 U CN210529677 U CN 210529677U
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China
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unit wall
trapezoidal
unit
wall
wall section
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Inventor
赵星
张迪
王一博
许俊超
李文彪
胡正波
邓林恒
王连欣
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China Railway Siyuan Survey and Design Group Co Ltd
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China Railway Siyuan Survey and Design Group Co Ltd
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Abstract

The utility model discloses a prefabricated underground continuous wall structure, which comprises a plurality of unit wall sections which are connected together in sequence from left to right, wherein the unit wall sections are arranged on a straight line, each unit wall section is vertically arranged, and each unit wall section is vertically provided with a hoisting hole; trapezoidal notches are respectively arranged at the left side and the right side of each unit wall section, and a steel plate water stop is respectively and horizontally arranged at each trapezoidal notch; after two adjacent unit wall sections are close to each other, two trapezoidal gaps on the side where the two adjacent unit wall sections are close to each other are combined to form a hexagonal gap, and plain concrete is filled in the hexagonal gap. The utility model discloses a unit wall section of even wall structure can be prefabricated, then assembles underground continuous wall structure to appointed grooving position through the hole for hoist after underground continuous wall grooving, and simple accurate has overcome the handling problem of the cast-in-place mud waste of traditional underground wall.

Description

Prefabricated underground continuous wall structure
Technical Field
The utility model belongs to the foundation ditch field, more specifically relates to a prefabricated underground continuous wall structure.
Background
The underground continuous wall is a foundation engineering, and adopts a trenching machine on the ground, and under the condition of guide wall protection and protection, a long and narrow deep groove is excavated, after the groove is cleaned, a steel reinforcement cage is suspended in the groove, then underwater concrete is poured by using a conduit method to form a unit groove section, and the above steps are carried out section by section, so that a continuous reinforced concrete wall is built underground to be used as a structure for intercepting water, preventing seepage, bearing and retaining water.
The underground diaphragm wall is a commonly-used enclosure structure in foundation pit engineering, and usually needs to be formed into a groove in advance, a reinforcement cage is placed and then cast in situ, the construction quality of the underground diaphragm wall is often difficult to guarantee by a traditional cast-in-situ mode, the situations of exposed ribs, bulges and the like are often encountered, the treatment of waste mud is troublesome during urban construction, and the construction difficulty is very high under some special geological conditions (such as very soft mucky soil, a flushing layer containing boulders, superhard rocks and the like). Meanwhile, the joint of the underground diaphragm wall is easy to leak water.
SUMMERY OF THE UTILITY MODEL
To the above defect of prior art or improve the demand, the utility model provides a prefabricated underground continuous wall structure, reducible circumstances such as muscle, swell that expose to water-proof effects is good.
To achieve the above objects, according to one aspect of the present invention, there is provided a prefabricated underground diaphragm wall structure, which comprises a plurality of unit wall sections sequentially connected together from left to right, and arranged in a straight line, wherein,
each unit wall section is vertically arranged, and each unit wall section is vertically provided with a hoisting hole;
trapezoidal notches are respectively arranged at the left side and the right side of each unit wall section, and a steel plate water stop is respectively and horizontally arranged at each trapezoidal notch;
after two adjacent unit wall sections are close to each other, two trapezoidal gaps on the side where the two adjacent unit wall sections are close to each other are combined to form a hexagonal gap, and plain concrete is filled in the hexagonal gap.
Preferably, the trapezoid gap is in an isosceles trapezoid shape.
Preferably, the trapezoidal notch is symmetrical up and down about the steel plate waterstop.
Preferably, each unit wall section is further provided with a circular hole, and the central line of each circular hole is horizontally arranged.
Preferably, the number of the round holes on each unit wall section is two, and the hoisting hole is positioned between the two round holes.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, can gain following beneficial effect:
1) the utility model discloses a unit wall section of even wall structure can be prefabricated, then assembles underground continuous wall structure to appointed grooving position through the hole for hoist and mount behind the underground continuous wall grooving, and its simple accurate has overcome the handling problem of the cast-in-place mud waste of traditional underground wall, can be suitable for very soft silt soil, contains some special geological conditions such as the alluvial rock's alluvial layer and superhard rock.
2) The round holes are further formed in the unit wall sections, so that the weight of the unit wall sections is reduced, the unit wall sections can be conveniently hoisted, and meanwhile, the unit wall sections can be used as detection holes and monitoring holes
3) The utility model discloses all set up trapezoidal breach in both sides, two adjacent unit wall sections are close to together the back, plug up with plain concrete, still set up the steel sheet waterstop in trapezoidal breach department moreover, can prevent the condition that seam crossing leaked.
Drawings
FIG. 1 is a top plan view of a prefabricated continuous basement wall structure;
fig. 2 is a sectional view of a prefabricated continuous basement wall structure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 and 2, a prefabricated underground diaphragm wall structure includes a plurality of unit wall segments 1 connected together in sequence from left to right, and the unit wall segments 1 are arranged in a straight line, wherein,
each unit wall section 1 is respectively vertically arranged, and each unit wall section 1 is respectively vertically provided with a hoisting hole 2, so that the unit wall sections 1 can be conveniently hoisted to a specified grooving position through a crane;
trapezoidal notches 3 are respectively arranged at the left side and the right side of each unit wall section 1, and a steel plate water stop 4 is respectively horizontally arranged at each trapezoidal notch 3; the trapezoid gap 3 is a trapezoid with a large outer part and a small inner part, namely the length of the edge close to the unit wall section 1 is larger, the length in the unit wall section 1 is smaller, the edge and the inner side of the unit wall section 1 are used as the bottom of the trapezoid, the other two sides are used as the side edges of the trapezoid, preferably, the trapezoid gap 3 is in an isosceles trapezoid shape, and the trapezoid gap 3 is vertically symmetrical with respect to the steel plate water stop 4;
after two adjacent unit wall sections 1 are abutted together, two trapezoidal gaps 3 on one side of the abutting sides of the two adjacent unit wall sections are combined to form a hexagonal gap, plain concrete 5 is filled in the hexagonal gap, and after the gap is blocked by the plain concrete 5, the condition of water leakage at a joint can be effectively prevented by the cooperation of a steel plate water stop 4;
further, every still be provided with round hole 6 on the unit wall section 1 respectively, the central line level of round hole 6 sets up, every the quantity of round hole 6 on the unit wall section 1 is two, hoisting hole 2 is located these two between the round hole 6, round hole 6 not only can reduce the weight of unit wall section 1, is convenient for hoist and mount, but also can regard as inspection hole and monitoring hole.
According to another aspect of the present invention, there is provided a construction method of the prefabricated underground diaphragm wall structure, comprising the steps of:
1) prefabricating a unit wall section 1;
2) constructing a guide wall, and grooving an underground continuous wall;
3) hoisting a unit wall section 1 and then lowering to a set grooving position;
4) hoisting another unit wall section 1 to a trench forming position adjacent to the unit wall section 1 hoisted last time, and pouring plain concrete 5 in a hexagonal notch formed at one side of the two adjacent to each other;
5 repeating step 4) in this way, the desired prefabricated underground diaphragm wall structure is formed.
The utility model discloses can be through transporting prefabricated unit wall section 1 to appointed place, then hoist appointed grooving position again and assemble and form underground continuous wall structure, can prevent traditional cast-in-place a series of problems of underground continuous wall, but also set up plain concrete 5 and steel sheet waterstop 4, can effectively prevent the condition of leaking of seam crossing.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

Claims (5)

1. A prefabricated underground continuous wall structure, characterized in that it comprises a plurality of unit wall segments (1) connected together in sequence from left to right, and the unit wall segments (1) are arranged in a straight line, wherein,
each unit wall section (1) is vertically arranged, and each unit wall section (1) is vertically provided with a hoisting hole (2);
trapezoidal notches (3) are respectively formed in the left side and the right side of each unit wall section (1), and steel plate water stops (4) are respectively horizontally arranged at each trapezoidal notch (3);
after two adjacent unit wall sections (1) are abutted together, two trapezoidal notches (3) on the side where the two adjacent unit wall sections are abutted against each other are combined to form a hexagonal notch, and plain concrete (5) is filled in the hexagonal notch.
2. A prefabricated underground diaphragm wall construction according to claim 1, characterised in that the trapezoidal indentations (3) are isosceles trapezoids.
3. A prefabricated underground diaphragm wall construction according to claim 2, characterised in that the trapezoidal notch (3) is symmetrical up and down about the steel plate waterstop (4).
4. A prefabricated underground diaphragm wall structure according to claim 1, characterized in that each of the unit wall sections (1) is further provided with a circular hole (6), and the center line of the circular hole (6) is horizontally arranged to reduce the weight of the wall block.
5. A prefabricated underground diaphragm wall structure according to claim 4, characterized in that the number of the circular holes (6) on each unit wall section (1) is two, and the hoisting hole (2) is located between the two circular holes (6).
CN201920535401.5U 2019-04-19 2019-04-19 Prefabricated underground continuous wall structure Active CN210529677U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920535401.5U CN210529677U (en) 2019-04-19 2019-04-19 Prefabricated underground continuous wall structure

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Application Number Priority Date Filing Date Title
CN201920535401.5U CN210529677U (en) 2019-04-19 2019-04-19 Prefabricated underground continuous wall structure

Publications (1)

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CN210529677U true CN210529677U (en) 2020-05-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110004917A (en) * 2019-04-19 2019-07-12 中铁第四勘察设计院集团有限公司 A kind of coercion underground continuous wall structure and its construction method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110004917A (en) * 2019-04-19 2019-07-12 中铁第四勘察设计院集团有限公司 A kind of coercion underground continuous wall structure and its construction method

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