CN212742882U - Reverse construction basement side wall construction joint processing structure - Google Patents
Reverse construction basement side wall construction joint processing structure Download PDFInfo
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- CN212742882U CN212742882U CN202021579978.5U CN202021579978U CN212742882U CN 212742882 U CN212742882 U CN 212742882U CN 202021579978 U CN202021579978 U CN 202021579978U CN 212742882 U CN212742882 U CN 212742882U
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Abstract
The utility model discloses a do basement side wall construction joint processing structure upside down, including the concrete cushion, the symmetry sets up a plurality of sleeves in the concrete cushion, and the sleeve interpolation has the side wall vertical reinforcement, sets up the flitch secondary joist between the side wall vertical reinforcement, and the flitch secondary joist top is provided with the end cap template, the side wall vertical reinforcement outside sets up the centre gripping template, fills and covers the joint and the sleeve of side wall vertical reinforcement with the backfill sand between centre gripping template and the flitch secondary joist; a groove is arranged at the lower half section of the side wall, and concrete is poured in the groove; the middle part of the side wall is provided with a grouting pipe, and the inside and the outside of the side wall are both provided with water stop glue. The utility model discloses its laminating compactness that can guarantee construction joint department concrete reduces the probability that basement side wall construction joint department seepage takes place against doing.
Description
Technical Field
The utility model belongs to the building construction field especially relates to a structure is handled to contrary basement side wall construction joint of doing.
Background
In the face of increasingly scarce urban land resources, the utilization of underground space is more and more emphasized in order to meet the urban development requirements. The basement structure is usually made by two ways of forward making and backward making. For subway projects, in order to ensure the quality of side wall molding, a steel template and a tripod bracket are combined to construct a single-side formwork. According to the design floor height not more than 7.6m, the basement structure adopts a steel mould tripod single-face formwork support to sequentially form the side wall, and the treatment operation of the construction joint is convenient, concise and reliable. For a large-space basement structure with a net height of more than 7.6m, the reverse construction of the underground structure side wall is considered from the construction working condition requirement, the excavation safety of a foundation pit, the construction process conversion of the horizontal support of the enclosure structure and the structure side wall and the moving convenience of a steel mould tripod support system. The processing difficulty of the reverse construction side wall joint is relatively high, the upper and lower segmented side wall steel bar connecting joints are protected, the concrete construction joint is reserved, and how to ensure the protection of the steel bar connecting joints by the poured concrete and the fitting compactness of the concrete at the upper and lower segmented side wall construction joints is a key control link about the use safety of the reverse construction side wall structure and the leakage of the basement side wall.
Disclosure of Invention
The purpose of the invention is as follows: the utility model aims to provide a to the not enough of prior art, provide a reverse do basement side wall construction joint processing structure, its closely knit degree of laminating that can guarantee construction joint department concrete reduces the probability that reverse do basement side wall construction joint department seepage takes place.
The technical scheme is as follows: the utility model relates to a do basement side wall construction joint processing structure against, including the concrete cushion, the symmetry sets up a plurality of sleeves in the concrete cushion, and the sleeve interpolation has the side wall vertical reinforcement, sets up the flitch secondary joist between the side wall vertical reinforcement, and the flitch secondary joist top is provided with the end cap template, the side wall vertical reinforcement outside sets up the centre gripping template, fills and covers the joint and the sleeve of side wall vertical reinforcement with the backfill sand between centre gripping template and the flitch secondary joist; a groove is arranged at the lower half section of the side wall, and concrete is poured in the groove; the middle part of the side wall is provided with a grouting pipe, and the inside and the outside of the side wall are both provided with water stop glue.
Furthermore, the plug template is made of a bamboo plywood with the thickness of 15mm-30mm, and the wood square secondary keel is made of square wood with the thickness of 50mm multiplied by 10 mm.
Furthermore, the water stop glue is rainwater-swelling polyurethane water stop glue.
Furthermore, the water stop glue is arranged at a position 100mm away from the inner and outer surfaces of the side wall.
Furthermore, the grouting pipe is a full-section grouting pipe.
Furthermore, the included angle between the groove and the side wall is 30-45 degrees.
Has the advantages that:
(1) the utility model discloses will be against doing the protection of basement side wall construction joint department bar connector, the design of concrete joint face, the choice of concrete placement mode and the special waterproof mode's of this position department deals with and designs and constructs;
(2) the utility model provides the high steel bar joint's survival rate makes things convenient for the on-the-spot real operation simultaneously, has improved the closely knit degree of joint face concrete, and special waterproof mode has reduced the probability that construction joint department takes place the seepage.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is a schematic structural view of a groove in the present embodiment;
fig. 3 is a schematic view of the waterproof structure in this embodiment.
In the figure, 11, side wall vertical steel bars; 12. a plug template; 13. a batten secondary keel; 14. back filling sand; 15. clamping the template; 16. a concrete cushion; 21. water stopping glue; 22. a grouting pipe; 221. a connecting pipe; 222. a grouting guide pipe; 23. and (4) beveling.
Detailed Description
The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.
Example (b): a reverse construction basement side wall construction joint processing structure is shown in figures 1, 2 and 3 and comprises a Z-shaped interface plug template 12 supporting system, and a lower foundation of the system is usually in a mode that a concrete cushion 16 is arranged on undisturbed soil.
The concrete cushion is characterized by further comprising a plurality of sleeves symmetrically arranged in the concrete cushion 16, and side wall vertical steel bars 11 are inserted into the sleeves.
The inner side of the vertical steel bar 11 of the side wall is provided with a reinforcing system which comprises a wood square secondary keel 13, a plug template 12 is arranged above the wood square secondary keel 13, the plug template 12 is made of a bamboo plywood with the thickness of 15mm-30mm, and the wood square secondary keel 13 is made of square wood with the thickness of 50mm multiplied by 10 mm. The batten secondary keel 13 and the plug template 12 form a Z-shaped connector plug with symmetrical internal and external deviation of 50 mm;
the reinforcing system is arranged on the outer side of the side wall vertical steel bar 11 and comprises a clamping template 15, the clamping template 15 adopts a bamboo plywood, and the bamboo plywood meeting the design protection layer thickness requirement is attached to the outer side of the root of the vertical steel bar to clamp and fix a steel bar joint.
11 joints of side wall vertical reinforcement are provided with the braced system, including filling backfill sand 14 between centre gripping template 15 and the flitch secondary joist 13 the backfill sand 14 of 11 joint positions of side wall vertical reinforcement will guarantee closely knit, and will all cover box joint, do not allow to have the joint to expose the concrete pollution.
A groove 23 is arranged at the lower half section of the side wall, and concrete is poured in the groove 23; the joint concrete of the construction joint is gradually compacted from the outer side to the inner side by the pressure of the upper top of the concrete.
The waterproof treatment mode of construction joint adopts the side wall middle part to set up slip casting pipe 222, sets up water swelling stagnant water glue 21 apart from the interior outer epidermis 100mm position department of side wall. The construction joint water stop glue 21 is made of rainwater-expanded polyurethane water stop glue 21, the size of a cured and molded section is (8-10) mmx (18-20) mm, and the grouting pipe 22 is a full-section grouting pipe 22. A grouting pipe 222 is connected to the grouting pipe 22 through a connection pipe 221, and is used for introducing concrete.
The utility model discloses a processing method of structure is handled to contrary basement side wall construction joint of doing, including following step:
step a, reinforcing the inner side of the vertical steel bar of the side wall:
step a1, tamping natural soil foundations at the lower parts of the side walls, and pouring concrete cushions according to the widths of the side walls;
step a2, processing a plug template and a batten secondary keel according to the thickness of the side wall and the row spacing of the vertical steel bars of the side wall;
step a3, inserting the side wall vertical steel bars into sleeves preset in the concrete cushion, and inserting and installing plug templates and batten secondary keels in the process of installing the side wall vertical steel bars;
b, reinforcing the outer side of the vertical steel bar of the side wall: clamping the joint of the side wall vertical steel bar by utilizing the clamping template attached to the outer side of the root part of the side wall vertical steel bar;
step c, protecting the joint of the vertical steel bar of the side wall: filling and covering the vertical steel bar joints and the sleeves of the side walls with backfill sand;
step d, concrete pouring treatment at the construction joint: the upper and lower sections of concrete are connected through a Z-shaped interface construction joint, and the lower half section of side wall concrete pouring adopts groove pouring; the included angle between the groove and the side wall is 30-45 degrees; and (3) by jacking the lower half section of concrete to compact the Z-shaped interface construction joint, before the concrete is finally set, removing the concrete at the groove to enable the surface of the side wall body to be flat.
Step e, waterproof treatment of the construction joint: and a grouting guide pipe is arranged in the middle of the side wall, and water-swelling water-stop glue is arranged at a position 100mm away from the inner and outer skins of the side wall. Wherein, the slip casting pipe adopts full section slip casting pipe. The water stop glue is made of rain water expansion polyurethane.
As mentioned above, although the present invention has been shown and described with reference to certain preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The utility model provides a structure is handled to contrary basement side wall construction joint, its characterized in that of doing: the concrete cushion comprises a concrete cushion (16), wherein a plurality of sleeves are symmetrically arranged in the concrete cushion (16), side wall vertical steel bars (11) are inserted into the sleeves, flitch cross runners (13) are arranged between the side wall vertical steel bars (11), plug templates (12) are arranged above the flitch cross runners (13), clamping templates (15) are arranged outside the side wall vertical steel bars (11), and joints and sleeves of the side wall vertical steel bars (11) are filled and covered by backfill sand (14) between the clamping templates (15) and the flitch cross runners (13); a groove (23) is arranged at the lower half section of the side wall, and concrete is poured in the groove (23); the middle part of the side wall is provided with a grouting pipe (22), and the inside and the outside of the side wall are both provided with water stop glue (21).
2. The structure of claim 1, wherein the structure comprises: the plug template (12) adopts a bamboo plywood with the thickness of 15mm-30mm, and the batten secondary keel (13) adopts a square wood with the thickness of 50mm multiplied by 10 mm.
3. The structure of claim 1, wherein the structure comprises: the waterproof glue (21) is a rainwater-expanded polyurethane waterproof glue (21).
4. The structure of claim 1, wherein the structure comprises: the water stop glue (21) is arranged at a position 100mm away from the inner and outer skins of the side wall.
5. The structure of claim 1, wherein the structure comprises: the grouting pipe (22) adopts a full-section grouting pipe (22).
6. The structure of claim 1, wherein the structure comprises: the included angle between the groove (23) and the side wall is 30-45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021579978.5U CN212742882U (en) | 2020-08-03 | 2020-08-03 | Reverse construction basement side wall construction joint processing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021579978.5U CN212742882U (en) | 2020-08-03 | 2020-08-03 | Reverse construction basement side wall construction joint processing structure |
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| Publication Number | Publication Date |
|---|---|
| CN212742882U true CN212742882U (en) | 2021-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021579978.5U Active CN212742882U (en) | 2020-08-03 | 2020-08-03 | Reverse construction basement side wall construction joint processing structure |
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| CN (1) | CN212742882U (en) |
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- 2020-08-03 CN CN202021579978.5U patent/CN212742882U/en active Active
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