CN114277849A - Construction method of post-cast strip disassembly-free composite water-stop template - Google Patents
Construction method of post-cast strip disassembly-free composite water-stop template Download PDFInfo
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- 239000002131 composite material Substances 0.000 title claims abstract description 118
- 238000010276 construction Methods 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 78
- 238000000034 method Methods 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims description 31
- 229910000831 Steel Inorganic materials 0.000 claims description 23
- 239000010959 steel Substances 0.000 claims description 23
- 238000009415 formwork Methods 0.000 claims description 12
- 239000004567 concrete Substances 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 5
- 238000011900 installation process Methods 0.000 abstract description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
A construction method of a post-cast strip disassembly-free composite water-stop template comprises the following steps: s1, positioning a composite water stopping template; s2, mounting main ribs of the post-cast strip; s3, installing an inner support; s4, installing a longitudinal connecting rod component; s5, dismantling; the invention solves the process complexity in the traditional template and water stop installation process, overcomes the problems of large construction difficulty and difficult construction of the traditional scheme, and has the advantages of convenient installation and disassembly, high efficiency and quick construction period.
Description
Technical Field
The invention belongs to the technical field of arrangement of joints of foundation structures, and particularly relates to a construction method of a post-cast strip disassembly-free composite water-stop template.
Background
In order to prevent harmful cracks possibly generated by uneven self shrinkage and uneven settlement of a cast-in-place reinforced concrete structure in building construction and further endanger the safety of a building, concrete strips which have certain width and are poured after a certain period of time, namely post-pouring strips, need to be reserved at corresponding positions of beams, plates, walls and the like. Because the post-cast strip is not wide, the steel bars are not allowed to be broken, the operation space is narrow, and the construction is very difficult.
When concrete is poured on two sides of the post-pouring belt, if the template can only be constructed from the post-pouring belt according to the traditional method, the following adverse factors exist: firstly, the steel bars cannot be broken in a post-cast strip, and the net spacing of the steel bars at the position is smaller and generally smaller than 10cm due to the existence of the reinforcing ribs; secondly, the post-cast strip is narrow in space, wide in width and low in efficiency, the post-cast strip is less than 1m in height, the post-cast strip is influenced by a metal water stop plate in hydraulic engineering, and the difficulty of installation and fixation of a template, especially the dismantling after concrete pouring is increased. And thirdly, because the operation can only be carried out outside the post-pouring belt, the template can not be dismantled in a whole block, and only violence can be used, the efficiency is low, and the cost is high. Construction difficulties such as waste residue cleaning, contact surface roughening and the like after the template is dismantled are high, and potential quality hazards exist. Due to the influence of the factors, the construction difficulty is high, the period is long, and the influence on the construction period is obvious.
Disclosure of Invention
The invention aims to solve the problems of difficult construction, high cost and long construction period in the prior art and provides a construction method of a post-cast strip disassembly-free composite water-stop template, which has the advantages of reasonable design, convenience in mounting and dismounting, high construction efficiency and flexibility in construction.
The technical scheme for solving the technical problems is as follows: a construction method of a post-cast strip disassembly-free composite water-stop template is characterized in that the template structure applied by the method is that first connecting rods are arranged at equal intervals along the length direction at the upper end between a first composite water-stop template and a second composite water-stop template which are identical in structure, second connecting rods are arranged at equal intervals along the length direction at the lower end, first inner supporting frames and second inner supporting frames are arranged at equal intervals in a staggered mode in the middle between the first composite water-stop template and the second composite water-stop template, at least 1 group of longitudinal connecting rod components are arranged on the first inner supporting frames and the second inner supporting frames, the upper template is vertically arranged on the upper surface of a steel water-stop plate, and a lower template is vertically arranged on the lower surface of the first composite water-stop template; the method comprises the following steps:
s1, placing the composite water-stopping template in place
After paying off, temporarily fixing the first composite water stopping template 1 and the second composite water stopping template 5 after the first composite water stopping template and the second composite water stopping template are manually transported in place in a field;
s2, mounting main ribs of post-cast strip
Sequentially penetrating second connecting rods into mounting holes of lower templates of a first composite water stopping template and a second composite water stopping template from one end, simultaneously binding mortar cushion blocks on reinforcing steel bars on the inner sides of the lower templates close to the first composite water stopping template and the second composite water stopping template, correcting the positions of the first composite water stopping template and the second composite water stopping template, fixing the first composite water stopping template and the second composite water stopping template in a spot welding mode after the first composite water stopping template and the second composite water stopping template are faultless, finally sequentially penetrating first connecting rods into mounting holes of upper templates of the first composite water stopping template and the second composite water stopping template, correcting the positions of the first composite water stopping template and the second composite water stopping template, and fixing the first connecting rods in a spot welding mode after the first composite water stopping template and the second composite water stopping template are faultless;
s3, installing an inner support
The first inner support frame and the second inner support frame are installed between the first composite water-stopping template and the second composite water-stopping template in a staggered mode, two reinforcing ribs of the first inner support frame are installed on a lower template of the first composite water-stopping template and a lower template of the second composite water-stopping template respectively, two reinforcing ribs of the second inner support frame are installed on an upper template of the first composite water-stopping template and an upper template of the second composite water-stopping template respectively, the center distance between the adjacent first inner support frame and the second inner support frame is 15cm, the first inner support frame and the second inner support frame are adjusted respectively to enable the reinforcing ribs to be in full contact with the templates, and deformation of the first composite water-stopping template and the second composite water-stopping template in the concrete pouring process is prevented;
s4, installing longitudinal connecting rod components
A group of longitudinal connecting rod components are respectively arranged on two sides of the first inner support frame and the second inner support frame, so that the first inner support frame and the second inner support frame are prevented from moving upwards in the concrete pouring process;
s5, dismantling
Firstly, the steel pipe positioning piece of the longitudinal connecting rod component is loosened, the longitudinal connecting rod component is disassembled, then the screw sleeves of the first inner support frame and the second inner support frame are respectively loosened, so that the two inner support frames are retracted to be separated from the side mold, and the inner support frames are manually taken out.
As a preferred technical scheme, the upper template structure is formed by sequentially connecting a first flat plate, a second flat plate and a third flat plate, the included angle between the first flat plate and the second flat plate is 120-150 degrees, and the first flat plate is parallel to the third flat plate; the lower template and the upper template have the same structure.
As a preferred technical solution, the first inner support frame is: one end of the first wire sleeve is provided with a first left supporting leg, the other end of the first wire sleeve is provided with a first right supporting leg, the first left supporting leg is structurally characterized in that one end of a first transverse connecting rod is provided with a first supporting rod, an included angle between the transverse connecting rod and the first supporting rod is an obtuse angle, a second supporting rod is arranged on the side face of the first supporting rod, and first left reinforcing ribs matched with the lower template are arranged at the end parts of the first supporting rod and the second supporting rod; the structure of the first right supporting leg is the same as that of the first left supporting leg, and a first right reinforcing rib matched with the lower template is welded at the lower end of the first right supporting leg.
As a preferred technical solution, the second inner support frame is: one end of the second wire sleeve is provided with a second left supporting leg, the other end of the second wire sleeve is provided with a second right supporting leg, the second left supporting leg is structurally characterized in that one end of a second transverse connecting rod is provided with a third supporting rod, an included angle between the second transverse connecting rod and the third supporting rod is an obtuse angle, a fourth supporting rod is arranged on the side face of the third supporting rod, and second reinforcing ribs matched with the upper die plate are arranged at the end parts of the third supporting rod and the fourth supporting rod; the structure of the second right supporting leg is the same as that of the second left supporting leg, and a second right reinforcing rib matched with the upper template is welded at the lower end of the second right supporting leg.
As a preferred technical solution, the longitudinal connecting rod member is: at least two clamps fix two parallel steel pipes as an organic whole.
As a preferred technical scheme, the fixture is as follows: the upper end of the vertical rod of the T-shaped component is in threaded connection with a steel pipe positioning piece, and the lower surface of the steel pipe positioning piece is provided with two arc-shaped surfaces which are connected into a whole.
The invention has the following beneficial effects:
the invention solves the process complexity in the traditional template and water stop installation process, overcomes the problems of large construction difficulty and difficult construction of the traditional scheme, and has the advantages of convenient installation and disassembly, high efficiency and quick construction period; the invention avoids the construction between two layers of steel bars in the post-cast strip by personnel, and is safe and reliable; the installation error of the steel bar is reduced to the maximum extent, and the construction quality is ensured; the first inner support frame and the second inner support frame can be repeatedly used, so that a large amount of labor of the traditional reinforcing method is avoided, and the construction cost is effectively controlled; because the welding quantity is reduced, the construction noise is reduced, no toxic and harmful substances are generated, and the environment is protected.
Drawings
FIG. 1 is a schematic view of the construction process of the present invention.
Fig. 2 is a schematic structural view of a template configuration to which the present invention is applied.
Fig. 3 is a schematic structural view of the first composite water stopping template 1 in fig. 2.
Fig. 4 is a schematic structural view of the first inner support frame 3 in fig. 2.
Fig. 5 is a schematic structural view of the second inner support frame 2 in fig. 2.
Fig. 6 is a schematic view of the structure of the longitudinal tie member 7 of fig. 2.
Detailed Description
The present invention will be described in further detail below with reference to the drawings and examples, but the present invention is not limited to the embodiments described below.
In fig. 2, the formwork structure applied to the construction method of the post-cast strip non-dismantling composite water-stop formwork of the embodiment is formed by connecting a first composite water-stop formwork 1, a second inner support frame 2, a first inner support frame 3, a second connecting rod 4, a second composite water-stop formwork 5, a first connecting rod 6 and a longitudinal connecting rod member 7, the first connecting rod 6 and the second connecting rod 4 are both steel bars and are main bars of the post-cast strip, the first inner support frame 3 and the second inner support frame 2 are equidistantly installed in the middle between the first composite water-stop formwork 1 and the second composite water-stop formwork 5, the distance between the adjacent first inner support frame 3 and the second inner support frame 2 is 15cm, the first inner support frame 3 is used for fixing lower templates 1-3 of the first composite water stopping template 1 and the second composite water stopping template 5, the second inner support frame 2 is used for fixing upper templates 1-1 of the first composite water stopping template 1 and the second composite water stopping template 5, 2 groups of longitudinal connecting rod members 7 are installed on the first inner support frame 3 and the second inner support frame 2 along the length direction of the first composite water stopping template 1, and the longitudinal connecting rod members 7 are fixed on the first connecting rods 6 and used for preventing the first inner support frame 3 and the second inner support frame 2 from moving upwards.
In fig. 3, a first composite water-stopping template 1 of this embodiment is a steel water-stopping plate 1-2, an upper template 1-1 is vertically welded on the upper surface of the steel water-stopping plate 1-2, a lower template 1-3 is vertically welded on the lower surface of the steel water-stopping plate 1-2, the upper template 1-1 is structured in such a way that a first flat plate 1-1-1, a second flat plate 1-1-2 and a third flat plate 1-1-3 are sequentially connected, an included angle between the first flat plate 1-1-1 and the second flat plate 1-1-2 is 130 degrees, can also be 110 degrees, can also be 150 degrees, the first flat plate 1-1-1 is parallel to the third flat plate 1-1-3, and the first flat plate 1-1 is parallel to the third flat plate 1-1-3
The upper end of the flat plate 1-1-1 is uniformly distributed with mounting holes a along the length direction, the aperture of the mounting holes a is 30mm, the hole pitch is 75mm, the mounting holes a are used for mounting first connecting rods 6, the lower template 1-3 and the upper template 1-1 have the same structure, and the mounting holes of the lower template 1-3 are used for mounting second connecting rods 4.
In fig. 4, the first inner support frame 3 of this embodiment is formed by connecting a first wire sleeve 3-1, a first right leg 3-2, a first right reinforcing rib 3-3, a first left reinforcing rib 3-4, and a first left leg 3-5, a through hole is processed in the middle of the first wire sleeve 3-1, a first left leg 3-5 is connected to one end of the first wire sleeve 3-1 by screw thread, and a first right leg 3-2 is connected to the other end by screw thread, the first left leg 3-5 has a structure in which one end of a first cross link 3-5-1 is processed by screw thread, the other end is processed by a first strut 3-5-2, an included angle between the first cross link 3-5-1 and the first strut 3-5-2 is 110 °, the side of the first strut 3-5-2 is processed by a second strut 3-5-3, the end parts of the first support rod 3-5-2 and the second support rod 3-5-3 are welded with a first left reinforcing rib 3-4 matched with the lower template 1-3; the structure of the first right supporting leg 3-2 is the same as that of the first left supporting leg 3-5, and a first right reinforcing rib 3-3 matched with the lower template 1-3 is welded at the lower end of the first right supporting leg 3-2. During installation, the first left reinforcing rib 3-4 of the first inner support frame 3 is installed on the lower template 1-3 of the first composite water stop template 1, the first right reinforcing rib 3-3 is installed on the lower template of the second composite water stop template 5, and then the first screw sleeve 3-1, the first left supporting leg 3-5 and the first right supporting leg 3-2 are screwed through the through hole in the first screw sleeve 3-1.
In fig. 5, the second inner support frame 2 of this embodiment is formed by connecting a second wire sleeve 2-1, a second right leg 2-2, a second right reinforcing rib 2-3, a second left reinforcing rib 2-4, and a second left leg 2-5, a through hole is processed in the middle of the second wire sleeve 2-1, one end of the second wire sleeve 2-1 is connected with the second left leg 2-5 in a threaded manner, the other end is connected with the second right leg 2-2 in a threaded manner, the second left leg 2-5 has a structure that one end of a second cross link 2-5-1 is processed with threads, the other end is processed with a third support rod 2-5-2, an included angle between the second cross link 2-5-1 and the third support rod 2-5-2 is 130 °, the side of the third support rod 2-5-2 is processed with a fourth support rod 2-5-3, the end parts of the third supporting rod 2-5-2 and the fourth supporting rod 2-5-3 are welded with a second left reinforcing rib 2-4 matched with the upper template; the structure of the second right supporting leg 2-2 is the same as that of the second left supporting leg 2-5, and a second right reinforcing rib 2-3 matched with the upper template is welded at the lower end of the second right supporting leg 2-2. When the water-stopping composite water-stopping template is installed, the second left reinforcing rib 2-4 of the second inner support frame 2 is installed on the upper template 1-1 of the first composite water-stopping template 1, the second right reinforcing rib 2-3 is installed on the upper template of the second composite water-stopping template 5, and then the second screw sleeve 2-1, the second left supporting leg 2-5 and the second right supporting leg 2-2 are screwed through the through hole in the second screw sleeve 2-1.
In fig. 6, the longitudinal connecting rod member 7 of this embodiment is composed of a steel tube 7-1 and a fixture 7-2, the four fixtures 7-2 fix two parallel steel tubes 7-1 as a whole and are fixedly connected with the first connecting rod 6, the fixture 7-2 is a T-shaped member, the upper end of the vertical rod is connected with a steel tube positioning member through screw threads, and the steel tube positioning member is a chevron-shaped clamp.
The construction method of the post-cast strip disassembly-free composite water-stop formwork of the embodiment comprises the following steps as shown in fig. 1:
s1, placing the composite water-stopping template in place
After paying off, temporarily fixing the first composite water stopping template 1 and the second composite water stopping template 5 after the first composite water stopping template and the second composite water stopping template are manually transported in place in a field;
s2, mounting main ribs of post-cast strip
Sequentially penetrating second connecting rods 4 into mounting holes of lower templates of a first composite water stopping template 1 and a second composite water stopping template 5 from one end, simultaneously binding mortar cushion blocks on reinforcing steel bars on the inner sides of the lower templates close to the first composite water stopping template 1 and the second composite water stopping template 5, correcting the positions of the first composite water stopping template 1 and the second composite water stopping template 5, fixing the first composite water stopping template 1 and the second composite water stopping template 5 with the second connecting rods 4 in a spot welding mode after errors are eliminated, finally sequentially penetrating first connecting rods 6 into the mounting holes of upper templates of the first composite water stopping template 1 and the second composite water stopping template 5, correcting the positions of the first composite water stopping template 1 and the second composite water stopping template 5, and fixing the first connecting rods 6 in a spot welding mode after errors are eliminated;
s3, installing an inner support
The first inner support frame 3 and the second inner support frame 2 are installed between the first composite water stop template 1 and the second composite water stop template 5 in a staggered mode, two reinforcing ribs of the first inner support frame 3 are installed on the lower templates 1-3 of the first composite water stop template 1 and the second composite water stop template 5 respectively, two reinforcing ribs of the second inner support frame 2 are installed on the upper templates 1-1 of the first composite water stop template 1 and the second composite water stop template 5 respectively, the center distance between the adjacent first inner support frame 3 and the second inner support frame 2 is 15cm, the first inner support frame 3 and the second inner support frame 2 are adjusted respectively to enable the reinforcing ribs to be in full contact with the templates, and the first composite water stop template 1 and the second composite water stop template 5 are prevented from deforming in the concrete pouring process;
s4, installing longitudinal connecting rod members 7
A group of longitudinal connecting rod components 7 are respectively arranged on two sides of the first inner support frame 3 and the second inner support frame 2 to prevent the first inner support frame 3 and the second inner support frame 2 from moving upwards in the concrete pouring process;
s5, dismantling
Firstly, the chevron-shaped clamps of the longitudinal connecting rod components 7 are loosened, the longitudinal connecting rod components 7 are detached, then the thread sleeves of the first inner support frame 3 and the second inner support frame 2 are respectively loosened, the two inner support frames are retracted to be separated from the side mold, and the inner support frames are manually taken out.
Claims (6)
1. A construction method of a post-cast strip disassembly-free composite water-stop template is characterized by comprising the following steps: the template structure applied by the method is that first connecting rods (6) are arranged at equal intervals along the length direction at the upper end between a first composite water-stopping template (1) and a second composite water-stopping template (5) which have the same structure, second connecting rods (4) are arranged at equal intervals along the length direction at the lower end, first inner supporting frames (3) and second inner supporting frames (2) are arranged at equal intervals in the middle between the first composite water-stopping template (1) and the second composite water-stopping template (5) in a staggered mode, at least 1 group of longitudinal connecting rod components (7) are arranged on the first inner supporting frames (3) and the second inner supporting frames (2), the upper template (1-1) is vertically arranged on the upper surface of the steel water-stopping plate (1-2), and the lower template (1-3) is vertically arranged on the lower surface of the first composite water-stopping template (1); the method comprises the following steps:
s1, placing the composite water-stopping template in place
After paying off, temporarily fixing the first composite water stopping template (1) and the second composite water stopping template (5) after the first composite water stopping template and the second composite water stopping template are manually transported in place in a field;
s2, mounting main ribs of post-cast strip
Sequentially penetrating second connecting rods (4) into mounting holes of lower templates of a first composite water stopping template (1) and a second composite water stopping template (5) from one end, simultaneously binding mortar cushion blocks on reinforcing steel bars on the inner sides of the lower templates close to the first composite water stopping template (1) and the second composite water stopping template (5), then correcting the positions of the first composite water stopping template (1) and the second composite water stopping template (5), spot-welding and fixing the first connecting rods (6) into the mounting holes of the upper templates of the first composite water stopping template (1) and the second composite water stopping template (5) after errors do not exist, then correcting the positions of the first composite water stopping template (1) and the second composite water stopping template (5), and spot-welding and fixing the first connecting rods (6) after errors do not exist;
s3, installing an inner support
The method comprises the following steps that a first inner support frame (3) and a second inner support frame (2) are installed between a first composite water stop template (1) and a second composite water stop template (5) in a staggered mode, two reinforcing ribs of the first inner support frame (3) are installed on a lower template of the first composite water stop template (1) and a lower template of the second composite water stop template (5) respectively, two reinforcing ribs of the second inner support frame (2) are installed on an upper template of the first composite water stop template (1) and the second composite water stop template (5) respectively, the center distance between the adjacent first inner support frame (3) and the adjacent second inner support frame (2) is 15cm, the first inner support frame (3) and the second inner support frame (2) are adjusted respectively to enable the reinforcing ribs to be in full contact with the templates, and deformation of the first composite water stop template (1) and the second composite water stop template (5) in the concrete pouring process is prevented;
s4. mounting longitudinal connecting bar component (7)
A group of longitudinal connecting rod components (7) are respectively arranged on two sides of the first inner support frame (3) and the second inner support frame (2) to prevent the first inner support frame (3) and the second inner support frame (2) from moving upwards in the concrete pouring process;
s5, dismantling
Firstly, steel pipe positioning parts of the longitudinal connecting rod components (7) are loosened, the longitudinal connecting rod components (7) are disassembled, then the thread sleeves of the first inner support frame (3) and the second inner support frame (2) are loosened respectively, the two inner support frames are retracted to be separated from the side mold, and the two inner support frames are taken out manually.
2. The construction method of the post-cast strip disassembly-free composite water-stop formwork according to claim 1, characterized in that: the upper template (1-1) is structurally characterized in that a first flat plate (1-1-1), a second flat plate (1-1-2) and a third flat plate (1-1-3) are sequentially connected, the included angle between the first flat plate (1-1-1) and the second flat plate (1-1-2) is 120-150 degrees, and the first flat plate (1-1-1) is parallel to the third flat plate (1-1-3); the lower template (1-3) and the upper template (1-1) have the same structure.
3. The construction method of the post-cast strip disassembly-free composite water-stop formwork according to claim 1, wherein the first inner support frame (3) is: one end of the first wire sleeve (3-1) is provided with a first left supporting leg (3-5), the other end of the first wire sleeve is provided with a first right supporting leg (3-2), the structure of the first left supporting leg (3-5) is that one end of a first transverse connecting rod (3-5-1) is provided with a first supporting rod (3-5-2), an included angle between the transverse connecting rod and the first supporting rod (3-5-2) is an obtuse angle, the side surface of the first supporting rod (3-5-2) is provided with a second supporting rod (3-5-3), and the end parts of the first supporting rod (3-5-2) and the second supporting rod (3-5-3) are provided with a first left reinforcing rib (3-4) matched with the lower template (1-3); the structure of the first right supporting leg (3-2) is the same as that of the first left supporting leg (3-5), and a first right reinforcing rib (3-3) matched with the lower template (1-3) is welded at the lower end of the first right supporting leg (3-2).
4. The construction method of the post-cast strip detachment-free composite water-stop formwork according to claim 1, wherein the second inner support frame (2) is: one end of the second wire sleeve (2-1) is provided with a second left supporting leg (2-5), the other end of the second wire sleeve is provided with a second right supporting leg (2-2), the structure of the second left supporting leg (2-5) is that one end of a second transverse connecting rod (2-5-1) is provided with a third supporting rod (2-5-2), an included angle between the second transverse connecting rod (2-5-1) and the third supporting rod (2-5-2) is an obtuse angle, the side surface of the third supporting rod (2-5-2) is provided with a fourth supporting rod (2-5-3), and the end parts of the third supporting rod (2-5-2) and the fourth supporting rod (2-5-3) are provided with a second left reinforcing rib (2-4) matched with the upper template (1-1); the structure of the second right supporting leg (2-2) is the same as that of the second left supporting leg (2-5), and a second right reinforcing rib (2-3) matched with the upper template (1-1) is welded at the lower end of the second right supporting leg (2-2).
5. The construction method of the post-cast strip detachment-free composite water-stop formwork according to claim 1, wherein the longitudinal connecting rod member (7) is: at least two clamps (7-2) fix the two parallel steel pipes (7-1) into a whole.
6. The construction method of the post-cast strip disassembly-free composite water-stop formwork according to claim 5, wherein the clamps (7-2) are as follows: the upper end of the vertical rod of the T-shaped component is in threaded connection with a steel pipe positioning piece, and the lower surface of the steel pipe positioning piece is provided with two arc-shaped surfaces which are connected into a whole.
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| CN106284427A (en) * | 2016-08-31 | 2017-01-04 | 中国冶集团有限公司 | A kind of basement post-pouring zone temporary leaking water gear soil construction method |
| CN207959244U (en) * | 2018-02-08 | 2018-10-12 | 甘肃第七建设集团股份有限公司 | Prefabricated assembling type reinforced frame raft foundation alter-pouring strips mould plate |
| CN111236320A (en) * | 2020-01-15 | 2020-06-05 | 中铁四局集团第三建设有限公司 | Bottom plate post-cast strip disassembly-free template and reinforcing method thereof |
| CN211548118U (en) * | 2020-01-16 | 2020-09-22 | 中冶建工集团有限公司 | Post-cast strip water stop component |
| CN214575658U (en) * | 2020-12-19 | 2021-11-02 | 北京住总第三开发建设有限公司 | Post-cast strip template with cast-in-place concrete structure |
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