CN112609736A - Basement waterproof shear wall post-cast strip construction method - Google Patents
Basement waterproof shear wall post-cast strip construction method Download PDFInfo
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- CN112609736A CN112609736A CN202011512270.2A CN202011512270A CN112609736A CN 112609736 A CN112609736 A CN 112609736A CN 202011512270 A CN202011512270 A CN 202011512270A CN 112609736 A CN112609736 A CN 112609736A
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- shear wall
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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
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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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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- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a construction method of a post-cast strip of a waterproof shear wall of a basement, which solves the problem of potential water leakage caused by the plugging of the post-cast strip of the traditional outer wall; the method comprises the following steps: the method comprises the following steps: when the shear wall is poured, a plurality of locking bolts are pre-embedded at two sides of a settlement joint of the shear wall; the inner cavity of the lock pin bolt is provided with internal threads; step two: connecting one end of a stud with an internal thread inside a locking bolt, sequentially placing a template and a vertical square timber above a steel pipe and blocking a post-cast strip of a shear wall, and sticking a double-sided adhesive tape at the joint of the template and the concrete edge of a settlement joint; step three: sleeving a steel pipe into the other end of the double-end screw, and then fastening by using a nut to enable the steel pipe to tightly drag the template; according to the invention, during reinforcement, screw holes do not need to be formed in the template, the turnover rate of the template can be improved, the labor input is saved, a water stop screw is not needed in the reinforcement process, only a common double-head screw head is needed, and the screw input is saved.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a construction method of a post-cast strip of a waterproof shear wall of a basement.
Background
Along with the continuous development of the construction industry and the continuous progress of the construction technology, super high-rise buildings are more and more, basements are designed for the super high-rise buildings, one layer and two layers of the basement are arranged on the underground, even more common basements leak due to cracks or untight bonding in the structure, especially in the position of a late poured band of a basement shear wall, the late poured band is installed and fixed by using split bolts, after the template is dismantled, if concrete bonding is untight or bolt holes are blocked and treated improperly in the joints of concrete poured in front and back, under the action of underground water pressure, the serious water seepage phenomenon of the basement shear wall is easily caused, and therefore the structural performance of the basement waterproof shear wall is seriously influenced.
Disclosure of Invention
The invention aims to solve the problem that the traditional outer wall post-cast strip plugging can cause the hidden trouble of water leakage, and provides a construction method of a basement waterproof shear wall post-cast strip; according to the invention, during reinforcement, screw holes do not need to be formed in the template, the turnover rate of the template can be improved, the labor input is saved, a water stop screw is not needed in the reinforcement process, only a common double-head screw head is needed, and the screw input is saved; the screw rod is directly connected with the shear wall without welding, so that time and labor are saved; need not to produce screw head and screw hole after the reinforcement, the later stage need not the shutoff screw hole to avoid producing the leakage point, solved traditional mode and demolishd the back at the template, need cut off the screw head, and reject the leather plug of stagnant water screw rod, and with the problem of waterproof mortar shutoff.
The purpose of the invention can be realized by the following technical scheme: a basement waterproof shear wall post-cast strip construction method comprises the following steps:
the method comprises the following steps: when the shear wall is poured, a plurality of locking bolts are pre-embedded at two sides of a settlement joint of the shear wall; the inner cavity of the lock pin bolt is provided with internal threads;
step two: connecting one end of a stud with an internal thread inside a locking bolt, sequentially placing a template and a vertical square timber above a steel pipe and blocking a post-cast strip of a shear wall, and sticking a double-sided adhesive tape at the joint of the template and the concrete edge of a settlement joint;
step three: sleeving a steel pipe into the other end of the double-end screw, and then fastening by using a nut to enable the steel pipe to tightly drag the template;
step four: and (6) pouring concrete.
Preferably, the number of the steel pipes is two, and the steel pipes are pre-embedded to the upper opening of the template from bottom to top according to the interval of 450 mm.
Preferably, a sponge strip is stuck at the joint of the template and the shear wall.
Preferably, a water stop is installed in the shear wall.
Preferably, the quantity of vertical square timber is a plurality of, and the equidistance is installed at the bottom face of template, and wherein, the interval between two adjacent vertical square timber is less than or equal to 200 mm.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, during reinforcement, screw holes do not need to be formed in the template, the turnover rate of the template can be improved, the labor input is saved, a water stop screw is not needed in the reinforcement process, only a common double-head screw head is needed, and the screw input is saved;
2. according to the invention, welding is not required, and the screw rod is directly connected with the shear wall, so that time and labor are saved;
3. according to the invention, after the reinforcement, a screw head and a screw hole are not required to be generated, and the screw hole is not required to be blocked in the later period, so that a leakage point is avoided, and the problems that in the traditional mode, after the template is dismantled, the screw head needs to be cut off, the leather plug of the water-stopping screw is removed, and the water-stopping screw is blocked by using waterproof mortar are solved.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a cross-sectional view of a construction method of a post-cast strip of a waterproof shear wall of a basement.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a construction method of a post-cast strip of a waterproof shear wall of a basement includes the steps of firstly embedding locking bolts 2 in a template 6 before concrete is not poured on the shear walls on two sides, embedding the locking bolts to an upper opening of the template 6 at intervals of 450mm from bottom to top, pouring the shear walls 1 on two sides, paying attention to vibration during pouring to prevent the locking bolts 2 from deviating, and after a construction joint is in a setting period or a post-cast strip is settled, a template 6 is configured according to the size of the post-cast strip, one end of a double-headed screw 3 is inserted into the internal thread of the lockpin bolt 2, the vertical square timbers 7 are arranged on the outer side of the template 6, the distance between the vertical square timbers 7 is not more than 200mm, the double steel pipes 5 are arranged on the outer side of the vertical square timbers 7, the vertical distance is 450mm, the other end of the double-end screw rod 3 is fixed with the steel pipes 5 and is fastened by the nuts 4, so that the steel pipe 5 clamps the template 6, and the joint of the template 6 and the edge of the shear wall 1 is adhered with double faced adhesive tape to prevent slurry leakage;
embedding bolts: because the general width of post-cast strip is 800mm, because of double threaded screw 3 only sets up in both sides, in whole template 6 reinforcing system, be the atress weak point in the middle of the template 6, all through reducing outer keel interval, prevent to rise the mould in the concrete vibration process, so should pay particular attention to when the construction, the vertical interval of double steel pipe 5 must not be greater than 450mm, and the 7 intervals of vertical square timber must not be greater than 200 mm.
Pouring concrete of the shear walls on the two sides: after the bolts are fixed, the bottoms of the concrete need to be crossed in place during pouring, so that the bolts are prevented from vibrating and falling off or deviating in the vibrating process.
Installation: the nut member must be firmly fixed, and should not be obviously loosened when being disturbed by normal template or concrete vibration, and when the nut member cannot meet the requirements after being fixed, a plastic film or paper sheet should be added in the nut member to ensure the stability requirement of the positioning plug;
and (3) slurry leakage prevention measures: sponge strips are adhered to the joint of the template 6 and the shear wall 1 to prevent slurry leakage and ensure the attractive appearance of concrete.
Pouring concrete: the concrete pouring and forming is the last extremely important process, and a person must be dispatched to a station and the whole process is supervised in place.
Compared with the traditional construction method, the construction method prevents the risk of water leakage caused by the untight plugging of the screw holes, and greatly saves the cost of water leakage maintenance.
The method has the advantages of simple process, strong operability and small construction difficulty, and the leakage risk in the later use process is greatly reduced;
the method avoids the problem that screw holes do not need to be formed in the template when the traditional template is reinforced, can improve the turnover rate of the template, and saves labor input. And need not to use stagnant water screw rod at the reinforcement process, only need ordinary double-end screw rod head can, save the screw rod and drop into.
The method avoids a screw and steel bar welding mode, the poured band after sedimentation needs to be sealed by adopting a brick wall in advance, the opposite screw can not be adopted when the inner side of the ground reservoir is reinforced, usually, the screw is welded with the steel bar of the outer wall, and then the template and the shear wall are clamped tightly from the outer side, the screw is directly connected with the shear wall without welding, and time and labor are saved.
In the traditional mode, after a template is dismantled, a screw head needs to be cut off, a leather plug of a water-stopping screw is removed, and waterproof mortar is used for plugging, the screw head and a screw hole do not need to be produced after the template is reinforced by the method, and the screw hole does not need to be plugged in the later period, so that leakage points are avoided;
when the double-column-type shear wall grouting device is used, the locking pin bolts 2 are pre-embedded in a template before concrete is not poured on the shear walls on the two sides, the locking pin bolts are pre-embedded to the upper opening of the template from bottom to top at intervals of 450mm, the shear walls 1 on the two sides are poured, vibration is paid attention to during pouring, the deviation phenomenon of the locking pin bolts 2 is prevented, after a construction joint setting period or a post-settlement pouring belt is settled, the template 6 is configured according to the size of the post-pouring belt, one end of the double-head screw 3 is inserted into the internal threads of the locking pin bolts 2, the vertical square timber 7 is arranged on the outer side of the template 6, the interval of the vertical square timber 7 is not more than 200mm, the double-steel pipe 5 is arranged on the outer side of the vertical square timber 7, the vertical interval is 450mm, the other end of the double-head screw 3 is fixed with the steel.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. A basement waterproof shear wall post-cast strip construction method is characterized by comprising the following steps:
the method comprises the following steps: when the shear wall is poured, a plurality of locking bolts (2) are embedded in two sides of a settlement joint of the shear wall (1); the inner cavity of the lock pin bolt (2) is provided with internal threads;
step two: one end of a double-headed screw (3) is connected with an internal thread inside a locking bolt (2), a template (6) and a vertical square timber (7) are sequentially arranged above a steel pipe (5) and block a post-cast strip of the shear wall (1), and a double-sided adhesive tape is adhered to the joint of the template (6) and the concrete edge of the settlement joint;
step three: sleeving the steel pipe (5) into the other end of the double-end screw (3), and then fastening by using a nut to enable the steel pipe (5) to tightly drag the template (6);
step four: and (6) pouring concrete.
2. The construction method of the basement waterproof shear wall post-cast strip according to claim 1, wherein the number of the steel pipes (5) is two, and the steel pipes are pre-embedded to the upper opening of the template from bottom to top according to a distance of 450 mm.
3. The construction method of the basement waterproof shear wall post-cast strip according to claim 1, characterized in that a sponge strip is pasted at the joint of the template (6) and the shear wall (1).
4. The basement waterproofing shear wall post-cast strip construction method according to claim 1, characterized in that a water stop strip (8) is installed in the shear wall (1).
5. The basement waterproofing shear wall post-cast strip construction method according to claim 1, characterized in that the number of the vertical square timbers (7) is multiple and the vertical square timbers are installed at the bottom end face of the formwork (6) at equal intervals, wherein the distance between two adjacent vertical square timbers (7) is less than or equal to 200 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011512270.2A CN112609736A (en) | 2020-12-19 | 2020-12-19 | Basement waterproof shear wall post-cast strip construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011512270.2A CN112609736A (en) | 2020-12-19 | 2020-12-19 | Basement waterproof shear wall post-cast strip construction method |
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| CN112609736A true CN112609736A (en) | 2021-04-06 |
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| CN202011512270.2A Pending CN112609736A (en) | 2020-12-19 | 2020-12-19 | Basement waterproof shear wall post-cast strip construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863386A (en) * | 2021-08-28 | 2021-12-31 | 安徽朗凯奇建材有限公司 | Basement roof pre-closed post-cast strip waterproof structure and construction method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817471A (en) * | 2012-09-25 | 2012-12-12 | 刘其标 | Bare concrete adjustable combined type inner-outer wall steel die |
| CN103195102A (en) * | 2013-04-23 | 2013-07-10 | 中建七局第二建筑有限公司 | Post-cast strip form support structure and method for underground waterproof shear walls |
| CN209443765U (en) * | 2018-11-20 | 2019-09-27 | 中建三局第三建设工程有限责任公司 | A kind of steel form of the pouring after settlement shear wall for banketing in advance |
-
2020
- 2020-12-19 CN CN202011512270.2A patent/CN112609736A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817471A (en) * | 2012-09-25 | 2012-12-12 | 刘其标 | Bare concrete adjustable combined type inner-outer wall steel die |
| CN103195102A (en) * | 2013-04-23 | 2013-07-10 | 中建七局第二建筑有限公司 | Post-cast strip form support structure and method for underground waterproof shear walls |
| CN209443765U (en) * | 2018-11-20 | 2019-09-27 | 中建三局第三建设工程有限责任公司 | A kind of steel form of the pouring after settlement shear wall for banketing in advance |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863386A (en) * | 2021-08-28 | 2021-12-31 | 安徽朗凯奇建材有限公司 | Basement roof pre-closed post-cast strip waterproof structure and construction method thereof |
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Application publication date: 20210406 |