CN109137884B - Assembled guide wall of impervious wall and construction method thereof - Google Patents
Assembled guide wall of impervious wall and construction method thereof Download PDFInfo
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- CN109137884B CN109137884B CN201811137076.3A CN201811137076A CN109137884B CN 109137884 B CN109137884 B CN 109137884B CN 201811137076 A CN201811137076 A CN 201811137076A CN 109137884 B CN109137884 B CN 109137884B
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- 238000010276 construction Methods 0.000 title claims abstract description 41
- 239000004567 concrete Substances 0.000 claims description 26
- 238000009434 installation Methods 0.000 claims description 16
- 230000000149 penetrating effect Effects 0.000 claims description 12
- 239000002689 soil Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 4
- 230000006378 damage Effects 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 16
- 239000011150 reinforced concrete Substances 0.000 description 8
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
- E02D5/182—Bulkheads or similar walls made solely of concrete in situ using formworks to separate sections
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0007—Production methods using a mold
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses an assembly type guide wall of a diaphragm wall and a construction method thereof, wherein the assembly type guide wall comprises a plurality of unit boxes spliced along a straight line, each unit box comprises a box body and end plates positioned at two ends of the box body, and two adjacent unit boxes are connected through bolts. The invention has good universality, can be assembled into various structural forms, and can adapt to various geological conditions and construction working conditions; the construction period of the underground diaphragm wall can be shortened, and the engineering construction progress can be accelerated; the disassembly is convenient, and the hidden trouble of engineering quality caused by damage to the impervious wall is avoided; can be used for multiple times, saves energy, reduces consumption and greatly reduces environmental pollution.
Description
Technical Field
The invention relates to a guide wall in the technical field of civil engineering concrete underground diaphragm wall construction, in particular to a diaphragm wall assembled guide wall and a construction method of the diaphragm wall assembled guide wall.
Background
The concrete underground impervious wall has the advantages of high rigidity, reliable structure, good impervious effect, adaptability to various stratum conditions, small construction vibration, low noise, capability of being close to building construction, small occupied area, convenient construction, high construction speed, high work efficiency and the like, and is widely applied to various civil engineering after the technology is self-introduced into China.
The guide wall is an indispensable temporary structure in the construction of the concrete underground diaphragm wall, and has the functions of protecting a notch during construction, supporting the load of construction equipment, storing slurry to adjust the liquid level, defining the construction position, guiding and the like. The prior guide wall structure type mainly comprises an inverted L shape, an L shape, a 匚 shape, a port shape and the like, and is selected according to geological conditions and specific working conditions during construction. In order to ensure that the guide wall and the foundation are well combined and prevent slurry leakage, the guide wall of the underground impervious wall generally adopts a cast-in-situ reinforced concrete structure. However, the reinforced concrete guide wall adopts a cast-in-situ structure, which has several problems: firstly, each working procedures such as foundation trench excavation, reinforcement binding, template installation, concrete pouring, earth backfilling behind the wall and the like of the guide wall can only be sequentially carried out, and after the concrete is cured for a period of time, the strength meets the requirement, the follow-up construction can be carried out, the construction period is long, the efficiency is low, and the construction progress is influenced. Secondly, the guide wall is used as a temporary structure, and after the construction of the impermeable wall is finished, the guide wall is disabled and becomes an obstacle for subsequent construction, and strong vibration equipment such as a hydraulic breaking hammer and the like is needed for breaking and disassembling, so that the impermeable wall can be damaged, and the hidden danger of engineering quality is left. Thirdly, when the guide wall is broken and detached, high decibel noise and dust can be generated, the life of residents is influenced, and the atmosphere is polluted; after the guide wall is broken, a large amount of waste concrete is generated, resources are wasted, and the soil is occupied and polluted; fourthly, the gravel aggregate for producing concrete is mined, so that river diversion and vegetation destruction are caused, water and soil loss and ecological environment degradation are caused, government starts to limit the exploitation of river sand and mountain and quarry stone, the price of the gravel aggregate continuously rises, the cast-in-place concrete guide wall is disposable, and the cost is high.
Disclosure of Invention
The invention aims to provide an assembled guide wall of a diaphragm wall, which is convenient to assemble and disassemble, high in work efficiency, energy-saving, environment-friendly, capable of being recycled and low in cost.
The construction method of the assembly type guide wall of the impervious wall is short in construction period and convenient to assemble and disassemble.
The invention solves the technical problems as follows: the wall assembly type guide wall comprises a plurality of unit boxes spliced along a straight line, each unit box comprises a box body and end plates positioned at two ends of the box body, and two adjacent unit boxes are connected through bolts.
As a further improvement of the technical scheme, each box body comprises at least one side plate, a bottom plate and/or a top plate, the inner side wall of the bottom plate is provided with a boss, a mounting groove is formed in the outer side of the boss, one ends of the end plate and the at least one side plate are embedded in the mounting groove and then fixed on the bottom plate through a connecting piece and a bolt, and the side plates are fixed with the adjacent end plates through the connecting piece and the bolt.
As a further improvement of the technical scheme, an end plate is shared between two adjacent unit boxes, bolt holes are respectively arranged on two end faces of the end plate, and two rows of bolt holes are arranged on the top face of the end plate.
As a further improvement of the technical scheme, the top of the side plate and three sides far away from the top in the end face are provided with bolt holes, the top of the end plate and three sides far away from the top in the end face are provided with bolt holes, four sides of the upper end face of the boss are provided with bolt holes, and the periphery of the end face of the top plate is provided with bolt holes.
As a further improvement of the technical scheme, the end plates, the bottom plate, the top plate and the side plates are reinforced concrete plates with bolt holes.
As a further improvement of the technical scheme, the middle part of the end plate is provided with a wall penetrating hole.
As a further improvement of the technical scheme, the box body is in one of a 'L' -shaped, an 'inverted L' -shaped, a '匚' -shaped, a 'U' -shaped and an 'inverted U' -shaped.
A construction method of an assembly type guide wall of a impervious wall comprises the following steps,
1) Manufacturing prefabricated parts of all parts in the unit box body;
2) After a plurality of groove sections are excavated in a concrete underground impervious wall base groove, prefabricated parts of all parts in a unit box body are transported to the base groove;
3) The side plate, the end plate, the bottom plate or/and the top plate are respectively fixed by connecting pieces and bolts, and the box body is in one of an 'L' -shape, an 'inverted L' -shape, a '匚' -shape, a 'U' -shape and a 'inverted U' -shape;
4) Repeating the step 3), installing end plates, side plates, bottom plates or/and top plates of adjacent unit boxes on the same side, and firmly connecting the two adjacent unit boxes through wall penetrating holes on the end plates of the two adjacent unit boxes by using stud bolts until the installation of one side guide wall is completed;
5) Repeating the steps 4) and 5), and finishing the installation of the guide wall on the other side;
6) Backfilling earthwork behind the guide wall, and compacting by rolling; then the operations of grooving the underground diaphragm wall, concrete pouring and the like are carried out.
As a further improvement of the technical scheme, in the step 4) or/and 5), square timber is wedged between guide walls at two sides at intervals of 1-2m along the longitudinal direction, so that the side movement of the guide walls is prevented when the soil is filled behind the guide walls.
As a further improvement of the technical scheme, after the construction of the concrete impervious wall of the groove section is completed, the guide wall is removed by digging out the filled soil after the guide wall is removed.
The beneficial effects of the invention are as follows: the invention has good universality, can be assembled into various structural forms, and can adapt to various geological conditions and construction working conditions; the construction period of the underground diaphragm wall can be shortened, and the engineering construction progress can be accelerated; the disassembly is convenient, and the hidden trouble of engineering quality caused by damage to the impervious wall is avoided; can be used for multiple times, saves energy, reduces consumption and greatly reduces environmental pollution.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is evident that the drawings described are only some embodiments of the invention, but not all embodiments, and that other designs and drawings can be obtained from these drawings by a person skilled in the art without inventive effort.
FIG. 1 is an exploded view of a unit case according to the present invention;
FIG. 2 is a schematic view of the structure of the unit case of the present invention;
FIG. 3 is a schematic view of the structure of the present invention in the shape of "port";
FIG. 4 is a schematic view of the structure of the present invention in the shape of "匚";
FIG. 5 is a schematic view of the structure of the invention in the shape of an "L";
FIG. 6 is a schematic view of the structure of the invention in the shape of an inverted L.
Detailed Description
The conception, specific structure, and technical effects produced by the present invention will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present invention. It is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present invention based on the embodiments of the present invention. In addition, all coupling/connection relationships mentioned herein do not refer to direct connection of the components, but rather, refer to the fact that a more optimal coupling structure may be formed by adding or subtracting coupling aids depending on the particular implementation.
Referring to fig. 1 to 6, the diaphragm wall assembly type guide wall comprises a plurality of unit boxes spliced along a straight line, each unit box comprises a box body and end plates 1 positioned at two ends of the box body, and two adjacent unit boxes are connected through bolts.
As a further improvement of the above technical solution, each box body includes at least one side plate, a bottom plate 2 and/or a top plate, the inner side wall of the bottom plate 2 has a boss 3, an installation groove 11 is formed on the outer side of the boss 3, one end of the end plate 1 and one end of at least one side plate are embedded in the installation groove 11 and then fixed on the bottom plate 2 through a connecting piece and a bolt, and the side plates and the adjacent end plates 1 are fixed through the connecting piece and the bolt. The bottom plate 2 and the boss 3 are cast as one body.
As a further improvement of the technical scheme, two adjacent unit boxes share one end plate 1, two end faces of the end plate are respectively provided with bolt holes, and the top face of the end plate is provided with two rows of bolt holes. When two unit boxes share one end plate, the connection between the two unit boxes is mainly fixed by the connection of the connecting piece and the end plate.
As a further improvement of the above technical scheme, bolt holes are arranged on three sides far from the top in the top and the end face of the side plate, bolt holes are arranged on three sides far from the top in the top and the end face of the end plate 1, bolt holes are arranged on four sides of the upper end face of the boss 3, and bolt holes are arranged on four sides of the end face of the top plate.
As a further improvement of the above technical solution, the end plate 1, the bottom plate 2, the top plate and the side plates are reinforced concrete plates with bolt holes.
As a further improvement of the above technical solution, the middle part of the end plate 1 is provided with a wall penetrating hole 10.
As a further improvement of the technical scheme, the box body is in one of a 'L' -shaped, an 'inverted L' -shaped, a '匚' -shaped, a 'U' -shaped and an 'inverted U' -shaped.
The following will take "kou" shape guide wall as an example.
Each unit box is formed by assembling components such as a bottom plate 2, a top plate, side plates, end plates 1, connecting pieces and the like, wherein the side plates comprise a front side plate close to the underground impervious wall body and a rear side plate far away from the underground impervious wall body, and the connecting pieces comprise transverse connecting pieces, longitudinal connecting pieces and vertical connecting pieces. The bottom plate 2, the top plate, the side plates and the end plates 1 of the unit boxes are connected with each other through connecting pieces and single-head bolts, and the unit boxes of the guide wall are connected with each other through stud bolts penetrating through wall penetrating holes 10 of the end plates 1 of the adjacent unit boxes.
A construction method of an assembly type guide wall of a impervious wall comprises the following steps,
1) Manufacturing prefabricated parts of all parts in the unit box body;
2) After a plurality of groove sections are excavated in a concrete underground impervious wall base groove, prefabricated parts of all parts in a unit box body are transported to the base groove;
3) The side plate, the end plate 1, the bottom plate 2 and/or the top plate are/is respectively hoisted to the bottom plate 2 and are respectively fixed by connecting pieces and bolts, and the box body is made to be one of an 'L' -shaped, an 'inverted L' -shaped, an '匚' -shaped, an 'U' -shaped and an 'inverted U' -shaped;
4) Repeating the step 3), installing the end plates 1, the side plates, the bottom plates 2 and/or the top plates of the adjacent unit boxes on the same side, and firmly connecting the adjacent unit boxes through the wall penetrating holes 10 on the end plates 1 of the adjacent unit boxes by using the stud bolts until the installation of one side guide wall is completed;
5) Repeating the steps 4) and 5), and finishing the installation of the guide wall on the other side;
6) Backfilling earthwork behind the guide wall, and compacting by rolling; then the operations of grooving the underground diaphragm wall, concrete pouring and the like are carried out.
As a further improvement of the technical scheme, in the step 4) or/and 5), square timber is wedged between guide walls at two sides at intervals of 1-2m along the longitudinal direction, so that the side movement of the guide walls is prevented when the soil is filled behind the guide walls.
As a further improvement of the technical scheme, after the construction of the concrete impervious wall of the groove section is completed, the guide wall is removed by digging out the filled soil after the guide wall is removed.
The following describes a construction method of the diaphragm wall assembled guide wall by taking the 'port' shaped guide wall as an example, and the construction method is specifically as follows.
1) Prefabricated part of each component in unit box
Each unit box of the guide wall comprises a bottom plate 2, a top plate 6, side plates, an end plate 1, connecting pieces and the like. Wherein the bottom plate 2 is a reinforced concrete plate with L-shaped grooves on the periphery, the L-shaped grooves are the mounting grooves 11, and a plurality of bolt holes are formed on the periphery of the top of the L-shaped grooves; the end plate 1 is of a reinforced concrete flat plate structure, a plurality of bolt holes are formed in the three circumferences and the top surface of two plate surfaces of the end plate 1, and a plurality of wall penetrating holes 10 are formed in the plate surface of the end plate 1; the side plates are of reinforced concrete flat plate structures, and a plurality of bolt holes are formed in the three circumferences and the top surface of a single plate surface of each side plate; the top plate 6 is a reinforced concrete flat plate structure with top plate 6 bolt holes arranged on the periphery, and the top plate 6 bolt holes penetrate through the whole top plate 6 and correspond to the bolt holes on the top surfaces of the lower side plate and the end plate 1; the connecting piece includes transverse connecting piece 9, vertical connecting piece 7 and vertical connecting piece 8, adopts the angle steel preparation, sets up a plurality of bolt holes at the both wings of connecting piece, and the bolt hole of connecting piece corresponds with the peripheral bolt hole of bottom plate 2, end board 1, curb plate of connection. The bottom plate 2, the top plate 6, the side plates and the end plates 1 of the unit boxes are connected with each other through connecting pieces and single-head bolts, and all the unit boxes of the guide wall are connected with each other by penetrating through wall penetrating holes 10 of the end plates 1 of the adjacent unit boxes through stud bolts.
The bolt holes on the bottom plate 2, the side plates, the periphery of the end plate 1 and the top surfaces of the side plates and the end plate 1 of the unit box body are formed by embedded nuts.
Carrying out guide wall stress calculation and structural design according to engineering geological conditions and actual working conditions; and determining the number of the guide wall unit boxes according to the total length of the plane of the concrete underground diaphragm wall and the construction plan, and further calculating the number of all the required components.
The reinforcement, the concrete strength grade and the strength specification of the connecting piece and the bolt of each concrete structure of the unit box body are determined according to the design, and the manufacture of each component of the unit box body is carried out in a factory.
2) After the manufacturing of each unit box body is completed and the design strength requirement is met, the unit box body can be used.
3) After a plurality of groove sections are excavated in the concrete underground impervious wall base groove, conveying the calculated quantity of guide wall box components to the base groove. And measuring and paying off the installation position of the guide wall, and installing the guide wall. After the installation of the same side of the guide wall is completed, the installation of the other side is carried out.
4) Firstly, a bottom plate 2 of a unit box body is installed, a front side plate 5 of the unit box body is hung on an L-shaped groove on the front side of the bottom plate 2, and a longitudinal connecting piece 7 and a single-head bolt are used for firmly connecting the bottom plate 2 and the front side plate 5 through bolt holes on the bottom plate 2 and the front side plate 5; then two end plates 1 are hung on L-shaped grooves at two ends of a bottom plate 2, the bottom plate 2 and the two end plates 1 are firmly connected through bolt holes on the bottom plate 2 and the two end plates 1 by using a transverse connecting piece 9 and a single-head bolt, and the front side plate 5 and the two end plates 1 are firmly connected through bolt holes on the front side plate 5 and the two end plates 1 by using a vertical connecting piece 8 and the single-head bolt; then the rear side plate 4 of the unit box body is hung on an L-shaped groove at the rear side of the bottom plate 2, the bottom plate 2 and the rear side plate 4 are firmly connected through bolt holes on the bottom plate 2 and the rear side plate 4 by using a longitudinal connecting piece 7 and a single-head bolt, and the rear side plate 4 and the two end plates 1 are firmly connected through bolt holes on the rear side plate 4 and the two end plates 1 by using a vertical connecting piece 8 and the single-head bolt.
5) And (4) repeating the step 4), installing the bottom plate 2, the end plate 1, the front side plate 5 and the rear side plate 4 of the adjacent unit boxes on the same side, and firmly connecting the adjacent unit boxes through the wall penetrating holes 10 of the end plates 1 of the adjacent unit boxes by using the stud bolts. And then accurately hanging the top plate 6 of the unit box body which is installed first, and firmly connecting the top plate 6 with the front side plate 5, the rear side plate 4 and the end plate 1 through the bolt holes of the top plate 6 and the corresponding bolt holes of the front side plate 5, the rear side plate 4 and the end plate 1 by using a single-head bolt. And installing the unit boxes in the guide wall on the same side.
6) And (5) repeating the steps 4) and 5) to finish the installation of the guide wall unit box body on the other side. Thus, the installation of the groove section 'port' shaped guide wall of the concrete underground diaphragm wall is completed.
7) The square timber is wedged between the guide walls at the two sides at intervals of 1-2m longitudinally, so that the guide walls are prevented from moving sideways when soil is filled behind the guide walls.
8) Backfilling earth behind the guide wall, and compacting by rolling; and then carrying out operations such as grooving and concrete pouring on the underground impervious wall until the construction of the concrete impervious walls of the groove sections is completed, and excavating the filled soil after the guide wall is excavated.
9) And (5) carrying out guide wall dismantling. The sequence of dismantling each component of the unit box body is a top plate 6, a rear side plate 4, an end plate 1, a front side plate 5 and a bottom plate 2 in sequence, and the connecting piece of each component of the unit box body is dismantled before the component is dismantled.
10 And (3) repeating the steps 3) and 9), and repeatedly using the guide wall to construct the concrete underground diaphragm wall of a plurality of other groove sections of the same engineering.
11 After the guide wall construction is completed, the concrete underground diaphragm wall of one project is repaired, and the slightly damaged unit box body member can be used for the underground diaphragm wall of the next project construction.
The guide wall can reduce part of components according to different geological conditions and design requirements, is assembled into an inverted L-shaped structure, an L-shaped structure, a 匚 -shaped structure and the like, and has strong universality. When the rear side plate 4 of the unit box body is not installed, the 匚 -shaped guide wall can be assembled; when the rear side plate 4 and the top plate 6 of the unit box are not installed, an L-shaped guide wall can be assembled; when the rear side plate 4 and the bottom plate 2 are not installed, an "inverted L" shaped guide wall may be assembled.
The invention has the remarkable progress and beneficial effects that the invention provides the assembled guide wall of the underground impervious wall, which has good universality, can be assembled into various structural forms, and can adapt to various geological conditions and construction working conditions; the construction period of the underground diaphragm wall can be shortened, and the engineering construction progress can be accelerated; the disassembly is convenient, and the hidden trouble of engineering quality caused by damage to the impervious wall is avoided; can be used for multiple times, saves energy, reduces consumption and greatly reduces environmental pollution.
While the preferred embodiments of the present application have been illustrated and described, the present application is not limited to the embodiments, and various equivalent modifications and substitutions can be made by one skilled in the art without departing from the spirit of the present application, and these equivalent modifications and substitutions are intended to be included in the scope of the present application as defined in the appended claims.
Claims (3)
1. The construction method of the assembled guide wall of the impervious wall comprises a plurality of unit boxes spliced along a straight line, wherein each unit box comprises a box body and end plates positioned at two ends of the box body, and two adjacent unit boxes are connected through stud bolts; each box body comprises two side plates, a bottom plate and a top plate, wherein the inner side wall of the bottom plate is provided with a boss, the bottom plate and the boss are cast into a whole, an installation groove is formed in the outer side of the boss, one ends of the end plate and the side plate are embedded in the installation groove and then fixed on the bottom plate through a connecting piece and a bolt, and the side plate and the adjacent end plate are fixed through the connecting piece and the bolt; an end plate is shared between two adjacent unit boxes, bolt holes are respectively arranged on two end faces of the end plate, and two rows of bolt holes are arranged on the top face of the end plate; the top and the three sides far from the top in the end face of the side plate are provided with bolt holes, the top and the three sides far from the top in the end face of the end plate are provided with bolt holes, the four sides of the upper end face of the boss are provided with bolt holes, and the periphery of the end face of the top plate is provided with bolt holes; the middle part of the end plate is provided with a wall penetrating hole; the box body is "kou" shape, its characterized in that: comprises the steps of,
1) Manufacturing prefabricated parts of all parts in the unit box body;
2) After a plurality of groove sections are excavated in a concrete underground impervious wall base groove, prefabricated parts of all parts in a unit box body are transported to the base groove;
3) Fixing the end plate, the side plate, the bottom plate and the top plate by connecting pieces and bolts respectively, and enabling the box body to be in a 'port' shape;
4) Repeating the step 3), installing the end plates, the side plates, the bottom plate and the top plate of the adjacent unit boxes on the same side, and firmly connecting the adjacent two unit boxes through the wall penetrating holes on the end plates of the adjacent two unit boxes by using the stud bolts until the installation of one side guide wall is completed;
5) Repeating the steps 3) and 4) to finish the installation of the guide wall on the other side;
6) Backfilling earthwork behind the guide wall, and compacting by rolling; and then carrying out grooving and concrete pouring operation on the underground diaphragm wall.
2. The method for constructing the fabricated guide wall of the impervious wall according to claim 1, wherein the method comprises the following steps: in the step 4) or/and 5), square timber is wedged between the guide walls at the two sides at intervals of 1-2m along the longitudinal direction, so as to prevent the guide walls from moving sideways when filling soil after the guide walls.
3. The method for constructing the fabricated guide wall of the impervious wall according to claim 1, wherein the method comprises the following steps: after the construction of the concrete impervious wall of the groove section is completed, the guide wall is removed by digging out the filled soil after the guide wall is removed.
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| CN201811137076.3A CN109137884B (en) | 2018-09-28 | 2018-09-28 | Assembled guide wall of impervious wall and construction method thereof |
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| CN109137884B true CN109137884B (en) | 2024-05-14 |
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