CN106284427B - A kind of basement post-pouring zone temporary leaking water earth-retaining construction method - Google Patents
A kind of basement post-pouring zone temporary leaking water earth-retaining construction method Download PDFInfo
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- CN106284427B CN106284427B CN201610781771.8A CN201610781771A CN106284427B CN 106284427 B CN106284427 B CN 106284427B CN 201610781771 A CN201610781771 A CN 201610781771A CN 106284427 B CN106284427 B CN 106284427B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
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- Environmental & Geological Engineering (AREA)
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The present invention provides a kind of basement post-pouring zone temporary leaking water earth-retaining construction methods, it is mainly included the following steps that：Step 1: sealing construction at the post-cast strip of bottom plate：Arrange mat foundation portion；The formwork for placing of bottom plate is made, and arranges baseplate reinforcing bar in formwork for placing；First non-dismantling formwork and the first steel plate for sealing water are provided；Fix the first non-dismantling formwork；Pour the concrete of bottom plate；Step 2: sealing earth-retaining is constructed at the post-cast strip of exterior wall：It makes and blocks prefabricated section mold and the embedded bar in prefabricated section mold；Pour closure prefabricated section；It is online that post-cast strip steel bar of the embedded bar spot welding of prefabricated section on exterior wall will be blocked；In the upper surface laying water-proof coiled material for blocking prefabricated section；Foundation pit surrounding backfills；Step 3: at floor post-cast strip sealing construction.Beneficial effects of the present invention are：The present invention ensure that water-less environment in basement, working procedure is few, shortens the construction period, has saved construction cost by carrying out temporary enclosed sealing construction to basement bottom board, exterior wall, floor slab back casting band.
Description
Technical field
The present invention relates to basement construction technical fields, and in particular to a kind of basement post-pouring zone temporary leaking water earth-retaining is applied
Work method.
Background technology
In construction projects, basement is an extremely important and common part, is mainly used for garage parking or business,
Basement post-pouring zone could carry out the backfill of foundation pit surrounding after having constructed.It is applied to basement post-pouring zone since foundation pit support construction
Work is complete to need long time, and there are some potential safety problemss, such as underground for pattern foundation pit supporting structure work overlong time before foundation pit backfills
When room post-cast strip does not pour, underground water can be seeped into from bottom plate rear pouring tape in basement, and rainwater also can be from exterior wall, floor（Top plate）
It is flowed in basement at post-cast strip, to influence basement construction.
Currently, being typically at least two months and main building sedimentation after waiting for main building to bind in the traditional construction of basement post-pouring zone
It can just be poured after stabilization, inner and outer basement is entirely connected state.Multiple rainfall can be undergone during this section, foundation pit is due to nothing
Method backfills and accelerates deformation；And underground water, rainwater flow into basement from post-cast strip, cause long-term ponding in foundation pit and basement.
For water-less environment in deep pit monitor and basement, need to long-term pump drainage water in foundation pit and basement, this not only influences underground
The normal construction of room, construction cost increase, claim for eot；If depositing soil, meeting temporarily on the architecture construction place of subsequent construction
Postpone the on-stream time of the building of subsequent construction.
Invention content
It is an object of the present invention in view of the deficiencies of the prior art, provide a kind of basement post-pouring zone temporary leaking water earth-retaining
Construction method.
The technical solution adopted by the present invention is：A kind of basement post-pouring zone temporary leaking water earth-retaining construction method, it is mainly wrapped
Include following steps：
Step 1: sealing construction at the post-cast strip of bottom plate：
（1）Arrange mat foundation portion；
（2）The formwork for placing of bottom plate is made, and arranges baseplate reinforcing bar in formwork for placing；
（3）First non-dismantling formwork and the first steel plate for sealing water are provided；
（4）The first non-dismantling formwork is fixed, the vertical arrangement of the first non-dismantling formwork is simultaneously tight with the outer end end face at bottom plate rear pouring tape
Patch, it is affixed with baseplate reinforcing bar and the first steel plate for sealing water spot welding；
（5）Pour the concrete of bottom plate；
Step 2: sealing earth-retaining is constructed at the post-cast strip of exterior wall：
（1）It makes and blocks prefabricated section mold and the embedded bar in prefabricated section mold；
（2）Closure prefabricated section is poured, ensures that the both sides for blocking prefabricated section are wider than post-cast strip, is contacted with exterior wall；
（3）It is online that post-cast strip steel bar of the embedded bar spot welding of prefabricated section on exterior wall will be blocked, on the outside of External Wall after
It pours and carries out temporary plugging at band；
（4）In the upper surface laying water-proof coiled material for blocking prefabricated section；
（5）Foundation pit surrounding backfills；
Step 3: at floor post-cast strip sealing construction：
（1）The formwork for placing of floor is made, and arranges floor bar in formwork for placing；
（2）Second non-dismantling formwork is installed at floor slab back casting band, in post-cast strip arranged beneath PVC extrusion molding templates；
（3）Floorslab concrete is poured, after concrete curing, removes the formwork for placing of floor；
（4）It is mixed using the second non-dismantling formwork of fluid sealant pair, floor after floorslab concrete and PVC extrusion moldings template are dry
Seam between solidifying soil and PVC extrusion molding templates is sealed.
By said program, in step 1（1）In, concrete cushion is first designed according to soil property situation, binds double-layer double-direction steel
Muscle net is placed in the foundation pit of concrete cushion, casting concrete bed course；Again response type is laid in the upper surface of concrete cushion
Waterproof roll forms waterproof layer；Finally microlith concrete cover is poured in the upper surface of waterproof layer.
By said program, in step 1（3）In, the first non-dismantling formwork includes bar frame and dense mesh, by close mesh
Steel wire is completely layered on bar frame, with tied silk banding fixed.
By said program, in step 1（4）In, the first non-dismantling formwork includes cope plate and lower template, the lower end of cope plate
It is connected and fixed with the upper surface of the first steel plate for sealing water, the upper end of cope plate and the gluten of bottom plate are fixedly linked, the upper end of lower template
It is connected and fixed with the lower surface of the first steel plate for sealing water；The outer end of the bottom plate is stretched out in the one end of first steel plate for sealing water along its length
The external part bending of end face, the first steel plate for sealing water is downward.
By said program, in step 1（5）In, when pouring the concrete of bottom plate, ensure that the slump of concrete is 14cm
~16cm；After pouring, the concrete surface of bottom plate outer end end face is in the male and female face of fine uniform, is handled without dabbing.
By said program, in step 2（2）In, the thickness for blocking prefabricated section can be 100mm, highly according to operation side
Space determine.
By said program, in step 3（2）In, post-cast strip, the formwork for placing with floor are stretched out in the both ends of PVC extrusion molding templates
Contact；By flitch and steel pipe support, steel pipe is fixed on steel tube frame for the lower part of PVC extrusion molding templates.
By said program, in step 3（4）In, closed-water test, no bright water penetration to basement are carried out after sealing glue solidifying
Inside then seal qualification.
Beneficial effects of the present invention are：
1, the present invention ensure that ground by carrying out temporary enclosed sealing construction to basement bottom board, exterior wall, floor slab back casting band
Lower interior water-less environment, while foundation pit surrounding can also be backfilled when the construction of exterior wall sealing earth-retaining, this method plays foundation pit
Prodigious protective effect, backfill stand-by period greatly shorten, and can deposit soil temporarily at the construction field (site)；
2, bar-mat reinforcement in concrete cushion is set, concrete cushion can be effectively prevent because of concrete shrinkage or uneven heavy
Drop cracking；Waterproof layer and microlith concrete cover, can play the role of temporary leaking water；
3, the lateral pressure of backfill can be kept out by blocking prefabricated section, at the same time as alter-pouring strips mould plate, blocked and be laid on prefabricated section
Waterproof roll also functions to temporary leaking water effect；
4, each form joint at each floor is sealed using fluid sealant, can effectively prevent keeping out floor（Top plate）Table
Face rainwater enters in basement；Conventional template is replaced using PVC extrusion molding templates, the service life is longer, and waterproof effect is more preferable.
5, construction method advantages of simple of the present invention can effectively prevent underground water, rainwater to flow into basement, construction from post-cast strip
Process is few, shortens the construction period, has saved construction cost.
Description of the drawings
Fig. 1 is midsole board post poured band sealing earth-retaining of the present invention construction schematic diagram.
Fig. 2 is post-pouring belt of outer wall sealing earth-retaining construction schematic diagram in the present invention.
Fig. 3 is floor slab back casting band sealing earth-retaining construction schematic diagram in the present invention.
Wherein：1, bottom plate；2, concrete cushion；3, waterproof layer；4, microlith concrete cover；5, post-cast strip；6, first exempts to tear open
Template；7, the first steel plate for sealing water；8, exterior wall；9, waterproof roll；10, foundation pit；11, prefabricated section is blocked；；12, fluid sealant；13,PVC
Extrusion molding template；14, steel tube frame；15, steel pipe；16, the second non-dismantling formwork；17, bar-mat reinforcement；18, flitch；19, the second sealing
Steel plate；20, floor.
Specific implementation mode
For a better understanding of the present invention, the present invention is further described in the following with reference to the drawings and specific embodiments.
The bottom plate 1 of basement is fixed in the portion of mat foundation, and mat foundation portion is fixedly connected on the ground of basement, ground
The upper surface of base is made of each reference plane unit, and each reference plane unit is located in same level, and parallel is set each other
It sets.Mat foundation portion includes concrete cushion 2, waterproof layer 3, microlith concrete cover 4 successively according to order from bottom to top.
A kind of basement post-pouring zone temporary leaking water earth-retaining construction method as shown in Fig. 1 ~ 3, it is mainly included the following steps that：
Step 1: sealing earth-retaining is constructed at the post-cast strip 5 of bottom plate 1：
1）Arrange mat foundation portion：Concrete cushion 2,17 juxtaposition of binding double-layer double-direction bar-mat reinforcement are designed according to soil property situation
In the foundation pit of concrete cushion 2, casting concrete bed course 2；It is laid with response type waterproof volume in the upper surface of concrete cushion 2
Material forms waterproof layer 3；The microlith concrete cover 4 of 5cm thickness is poured in the upper surface of waterproof layer 3；
2）The formwork for placing of bottom plate 1 is made, and arranges baseplate reinforcing bar in formwork for placing（Including bottom muscle, gluten and distribution
Muscle）；
（3）First non-dismantling formwork is provided：The reinforcement welding of a diameter of 10~14mm is selected to be fabricated to bar frame, by close mesh
Steel wire is completely layered on bar frame, with tied silk banding fixed, forms the first non-dismantling formwork 6 of monolithic；It provides and is fixedly connected
First steel plate for sealing water 7；
4）Fix the first non-dismantling formwork 6, the first non-dismantling formwork 6 vertically arrangement and with the outer end end face at 1 post-cast strip 5 of bottom plate
It is close to, it is affixed with 1 reinforcing bar of bottom plate and 7 spot welding of the first steel plate for sealing water：First non-dismantling formwork 6 includes cope plate and lower template, upper mold
The lower end of plate and the upper surface of the first steel plate for sealing water 7 are connected and fixed（It can spot welding）, the upper end of cope plate and the gluten of bottom plate 1 are fixed
It is connected（It can spot welding）；The upper end of lower template and the lower surface of the first steel plate for sealing water 7 are connected and fixed（It can spot welding）；First steel plate for sealing water
The outer end end face of the bottom plate 1 is stretched out in 7 one end along its length, and the external part bending of the first steel plate for sealing water 7 is downward；
5）Pour bottom plate 1：The slump of concrete is 14cm~16cm when pouring the concrete of bottom plate 1, and ensureing to pour；
After pouring, 1 outer end end face of bottom plate（Namely the outer end end face of post-cast strip 2）Concrete surface be in fine uniform convex-concave
Face is handled without dabbing.
Step 2: sealing earth-retaining is constructed at the post-cast strip 5 of exterior wall 8：
1）It makes and blocks prefabricated section mold and the pre-buried double-layer double-direction reinforcing bar in prefabricated section mold（A diameter of 6mm's
HRB400 reinforcing bars）, the spacing of reinforcing bar double-layer double-direction is 150mm；
2）It pours and blocks prefabricated section 11, ensure that the both sides for blocking prefabricated section 11 are wider than the wide 180mm in post-cast strip, with exterior wall 8
Contact, the thickness for blocking prefabricated section 11 can be 100mm, and height is determined according to the space of operation side, is not preferably less than
300mm；Prefabricated section 11 is blocked with negative and positive angle circular arc；
3）The embedded bar spot welding of prefabricated section 11 will be blocked in exterior wall 8（The second waterproof steel plate 19 is fixed on exterior wall 8）On
5 bar-mat reinforcement of post-cast strip on, carry out temporary plugging at the post-cast strip 5 in the outside of External Wall 6；
4）In the upper surface laying water-proof coiled material 9 for blocking prefabricated section 11（It can be response type waterproof roll）；
5）10 surrounding of foundation pit backfills, that is, completes the temporary enclosed sealing construction of post-cast strip 5 at exterior wall 8.
Step 3: at floor 20 post-cast strip 5 sealing construction：
1）Slab form is installed：The formwork for placing of floor is installed, and the second non-dismantling formwork 16 is installed at post-cast strip 5；
5 arranged beneath PVC extrusion moldings template 13 of post-cast strip, the both ends of PVC extrusion moldings template 13 stretch out post-cast strip 5, and mould is poured with floor 20
Plate contacts；The lower part of PVC extrusion moldings template 13 is supported by flitch 18 and steel pipe 15, and steel pipe 15 is fixed on steel tube frame 14；
2）Floor bar is arranged in the formwork for placing of floor 20, and pours floorslab concrete；
3）After floorslab concrete solidification, the formwork for placing of floor 20 is removed（The second non-dismantling formwork 16 at post-cast strip 5 is not torn open
It removes）；
4）After floorslab concrete and PVC extrusion moldings template 13 are dried, using fluid sealant 12 to the second non-dismantling formwork 16, floor
Seam between concrete and PVC extrusion moldings template 13 is sealed, and fluid sealant 12 carries out closed-water test after curing, without bright water penetration
Qualification is then sealed in basement, that is, completes the temporary enclosed sealing construction of post-cast strip 5 at floor 20.
After basement post-pouring zone 5 reaches the condition of pouring, the building waste in post-cast strip 5 is cleaned out after can pouring and poured
Band concrete.
It these are only the preferred embodiment of the present invention, be not intended to restrict the invention, although with reference to the foregoing embodiments to this
Invention is described in detail, for those skilled in the art, still can be to recorded in previous embodiment
Technical solution is modified or equivalent replacement of some of the technical features.It is all the spirit and principles in the present invention it
Interior, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of basement post-pouring zone temporary leaking water earth-retaining construction method, which is characterized in that it is mainly included the following steps that：
Step 1: sealing construction at the post-cast strip of bottom plate：
（1）Arrange mat foundation portion；Concrete cushion is first designed according to soil property situation, binding double-layer double-direction bar-mat reinforcement is placed in mixed
In the foundation pit of solidifying soil padding, casting concrete bed course；It is laid with response type waterproof roll in the upper surface of concrete cushion again, is formed
Waterproof layer；Finally microlith concrete cover is poured in the upper surface of waterproof layer；
（2）The formwork for placing of bottom plate is made, and arranges baseplate reinforcing bar in formwork for placing；
（3）First non-dismantling formwork and the first steel plate for sealing water are provided；
（4）The first non-dismantling formwork is fixed, the first non-dismantling formwork is arranged and is close to the outer end end face at bottom plate rear pouring tape vertically, with
Baseplate reinforcing bar and the first steel plate for sealing water spot welding are affixed；
（5）Pour the concrete of bottom plate；
Step 2: sealing earth-retaining is constructed at the post-cast strip of exterior wall：
（1）It makes and blocks prefabricated section mold and the embedded bar in prefabricated section mold；
（2）Closure prefabricated section is poured, ensures that the both sides for blocking prefabricated section are wider than post-cast strip, is contacted with exterior wall；
（3）It is online that post-cast strip steel bar of the embedded bar spot welding of prefabricated section on exterior wall will be blocked, the post-cast strip on the outside of External Wall
Place carries out temporary plugging；
（4）It is laid with response type waterproof roll in the upper surface for blocking prefabricated section；
（5）Foundation pit surrounding backfills；
Step 3: at floor post-cast strip sealing construction：
（1）The formwork for placing of floor is made, and arranges floor bar in formwork for placing；
（2）Second non-dismantling formwork is installed at floor slab back casting band, in post-cast strip arranged beneath PVC extrusion molding templates；
（3）Floorslab concrete is poured, after concrete curing, removes the formwork for placing of floor；
（4）After floorslab concrete and PVC extrusion moldings template are dry, using the second non-dismantling formwork of fluid sealant pair, floorslab concrete
And the seam between PVC extrusion molding templates is sealed.
2. basement post-pouring zone temporary leaking water earth-retaining construction method as described in claim 1, which is characterized in that in step 1
（3）In, the first non-dismantling formwork includes bar frame and dense mesh, and dense mesh is expired and is layered on bar frame, with bundle
Silk banding fixed.
3. basement post-pouring zone temporary leaking water earth-retaining construction method as described in claim 1, which is characterized in that in step 1
（4）In, the first non-dismantling formwork includes cope plate and lower template, and the lower end of cope plate connect solid with the upper surface of the first steel plate for sealing water
Fixed, the upper end of cope plate and the gluten of bottom plate are fixedly linked, and the upper end of lower template connect solid with the lower surface of the first steel plate for sealing water
It is fixed；The outer end end face of the bottom plate is stretched out in the one end of first steel plate for sealing water along its length, and the external part of the first steel plate for sealing water is curved
It is bent downward.
4. basement post-pouring zone temporary leaking water earth-retaining construction method as described in claim 1, which is characterized in that in step 1
（5）In, when pouring the concrete of bottom plate, ensure that the slump of concrete is 14cm~16cm；After pouring, bottom plate outer end end
The concrete surface in face is in the male and female face of fine uniform, is handled without dabbing.
5. basement post-pouring zone temporary leaking water earth-retaining construction method as described in claim 1, which is characterized in that in step 2
（2）In, the thickness for blocking prefabricated section is 100mm, is highly determined according to the space of operation side；Block prefabricated section band negative and positive angle
Circular arc.
6. basement post-pouring zone temporary leaking water earth-retaining construction method as described in claim 1, which is characterized in that in step 3
（2）In, post-cast strip is stretched out at the both ends of PVC extrusion molding templates, is contacted with the formwork for placing of floor；The lower part of PVC extrusion molding templates is by wood
Side and steel pipe support, steel pipe are fixed on steel tube frame.
7. basement post-pouring zone temporary leaking water earth-retaining construction method as described in claim 1, which is characterized in that in step 3
（4）In, closed-water test is carried out after sealing glue solidifying, and qualification is then sealed in no bright water penetration to basement.
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| CN201610781771.8A CN106284427B (en) | 2016-08-31 | 2016-08-31 | A kind of basement post-pouring zone temporary leaking water earth-retaining construction method |
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| CN108457411A (en) * | 2018-05-31 | 2018-08-28 | 杭州通达集团有限公司 | A kind of laminated floor slab and its construction method of assembled architecture |
| CN108951700B (en) * | 2018-07-04 | 2024-01-16 | 中铁隧道局集团有限公司 | Prefabricated assembled bottom plate connected with piles, assembled structure and installation method thereof |
| CN108678009A (en) * | 2018-07-26 | 2018-10-19 | 中建四局第四建筑工程有限公司 | A kind of basement post-pouring zone reserved passageway construction method and device |
| CN109025265B (en) * | 2018-07-28 | 2020-11-06 | 福建江夏学院 | Method for supporting post-cast strip of side mold of thin plate |
| CN109025293B (en) * | 2018-07-28 | 2020-11-06 | 福建江夏学院 | Thick plate side mold post-cast strip supporting method |
| CN109736357A (en) * | 2019-02-25 | 2019-05-10 | 中建四局第一建筑工程有限公司 | A kind of basement bottom plate rear pouring tape construction joint optimization processing structure |
| CN110374214A (en) * | 2019-07-29 | 2019-10-25 | 江西国金建设集团有限公司 | Finished product post-cast strip |
| CN111395407A (en) * | 2020-03-31 | 2020-07-10 | 中国二十二冶集团有限公司 | Cast-in-place concrete post-cast strip forming construction method |
| CN111648411B (en) * | 2020-05-06 | 2023-06-09 | 上海建工二建集团有限公司 | Down-turned post-pouring belt support changing structure, construction method and post-pouring belt construction method |
| CN111997096A (en) * | 2020-09-01 | 2020-11-27 | 中建八局第四建设有限公司 | Raft plate and construction method of basement outer wall post-cast strip |
| CN115369923B (en) * | 2021-05-20 | 2024-02-02 | 湖北远大建设集团有限公司 | Deformation-preventing slurry leakage post-pouring belt structure of basement bottom plate and construction method thereof |
| CN114277849B (en) * | 2021-11-16 | 2023-10-27 | 中国水电建设集团十五工程局有限公司 | Construction method of post-cast strip disassembly-free composite water stop template |
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