CN112359874A - Construction method of basement sump structure - Google Patents
Construction method of basement sump structure Download PDFInfo
- Publication number
- CN112359874A CN112359874A CN202011291209.XA CN202011291209A CN112359874A CN 112359874 A CN112359874 A CN 112359874A CN 202011291209 A CN202011291209 A CN 202011291209A CN 112359874 A CN112359874 A CN 112359874A
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- China
- Prior art keywords
- sump
- basement
- bottom plate
- steel bars
- concrete
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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
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
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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
- E04B1/0007—Base structures; Cellars
Abstract
The invention provides a construction method of a basement sump structure, belonging to the technical field of building construction; prefabricating a sump concrete structure in advance, then binding reinforcing steel bars in a centralized manner on a sump bottom plate and side walls, mechanically or colligating the reinforcing steel bars reserved on the side walls and a basement bottom plate, arranging a lifting ring convenient to hoist in the middle of the prefabricated sump bottom plate, and arranging water stop steel plates at horizontal construction joints of peripheral short walls; after reinforcement finishes, the surplus wall structure of sump pit uses template wooden purlin and steel pipe to propping the reinforcement, and the shaping is pour together with basement bottom plate concrete to the concrete, can set one's heart when guaranteeing basement sump pit concrete placement and vibrate, is favorable to the whole closely knit reliability of sump pit concrete, and difficult seepage even there is slight seepage, and the leaking stoppage work is also accomplished easily, has significantly reduced the maintenance work of later stage basement sump pit seepage, has certain economic benefits.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to a construction method of a basement sump structure.
Background
With the continuous development of the social economy and the acceleration of the urbanization process, large underground projects are built in large cities, and the underground space is utilized, exploited and developed, so that the important effect of promoting the development of the urban economy and the social health is achieved. The basement structure engineering is an important component in underground engineering, and how to ensure that the clearance size of a basement sump is accurate in the construction process, slight leakage, serious leakage or water burst do not occur, and the problem needs to be considered and solved in the construction process.
In the prior construction method, a wooden template is usually adopted in a basement sump pit as an inner template of the sump pit, the bottom of the basement sump pit is sealed by the wooden template, a common steel pipe is used as an inner support of the template, and a counterweight (such as a wooden template) is placed on an inner template of the foundation pit for stacking, so that the basement sump pit template is prevented from being inclined or floating due to floating pressure in the concrete construction process when concrete is poured. Basement sump pit structure is once only pour with basement bottom plate, however in the concrete placement in-process, the quality of pouring of basement sump pit bottom plate concrete is difficult to guarantee, and the sump pit side wall often leads to the not closely knit and hole of concrete inadequately because of the time of vibrating, appears the condition of sump pit seepage, can appear the outside situation of gushing out of basement confined water even.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a construction method of a basement sump structure, which can effectively solve the problems of large deviation of holes, leakage, clearance size and elevation and the like after a basement sump is constructed by using a traditional construction method.
The present invention achieves the above-described object by the following technical means.
A construction method of a basement sump structure comprises the following steps:
step 1: prefabricating a sump concrete structure in advance, binding reinforcing steel bars on a sump bottom plate and side walls in a concentrated manner, and reserving side wall reinforcing steel bars for connecting with a basement bottom plate;
step 2: two round steel hoisting rings for hoisting a sump structure are arranged in the middle of a prefabricated sump bottom plate; arranging a water stop steel plate at the horizontal construction joint position of the short wall around the sump;
and step 3: when the strength of the prefabricated concrete structure of the sump pit is more than or equal to 80%, hoisting the sump pit concrete structure to the position designed by the engineering project drawing for installation;
and 4, step 4: after the installation is finished, the residual wall structure of the sump is supported and reinforced by using template wood purlins and steel pipes; the lower opening of the template is provided with double faced adhesive tape to ensure that the lower opening of the template is not leaked; the concrete structure of the water collecting pit and the concrete of the basement bottom plate are poured and formed together.
Furthermore, the top of the side wall steel bar is bent to form a steel bar vertical section and a steel bar straight section.
Furthermore, the side wall steel bars and the basement bottom plate steel bars are connected in a mode of mechanical connection or binding connection of the steel bars.
Further, when the side wall reinforcing bar and the basement bottom plate adopt reinforcing bar mechanical connection, the requirement of the length reserved by the straight section of the reinforcing bar is: 1000mm long and (1000-35 d) mm long, and reserved alternately.
Further, when the side wall reinforcing bar and the basement bottom plate adopt the ligature to be connected, the requirement of the length reserved by the straight section of the reinforcing bar is: 1000mm long and (1000-1.3L)LRaft) mm long or (1000-1.3L)LE) mm long, reserved alternately.
Furthermore, the corners of the water stop steel plates are mutually overlapped.
Further, a waterproof protective layer, a waterproof coil layer and a cushion layer are sequentially arranged on the surface of the groove formed by the bottom plate and the side wall of the water collecting pit from bottom to top.
The invention has the following beneficial effects:
compared with the prior art, the construction method of the basement sump structure provided by the invention has the advantages that the sump concrete structure is prefabricated in advance, then reinforcing steel bars are bound on the sump bottom plate and the side walls in a centralized manner, the reinforcing steel bars reserved on the side walls are mechanically or collinearly connected with the basement bottom plate, a hanging ring convenient to hoist is arranged in the middle of the prefabricated sump bottom plate, and meanwhile, water stop steel plates are arranged at the horizontal construction joints of the peripheral low walls; after reinforcement finishes, the surplus wall structure of sump pit uses template wooden purlin and steel pipe to propping the reinforcement, and the shaping is pour together with basement bottom plate concrete to the concrete, can set one's heart when guaranteeing basement sump pit concrete placement and vibrate, is favorable to the whole closely knit reliability of sump pit concrete, and difficult seepage even there is slight seepage, and the leaking stoppage work is also accomplished easily, has significantly reduced the maintenance work of later stage basement sump pit seepage, has certain economic benefits.
Drawings
FIG. 1 is a sectional view of a prefabricated sump floor and sidewall structure according to the present invention;
FIG. 2 is a plan view of a prefabricated sump floor and sidewall structure according to the present invention;
FIG. 3 is a sectional view of the prefabricated structure of the bottom plate and the side wall of the sump according to the present invention.
In the figure: 1-a sump floor; 2-side wall; 3-side wall reinforcing steel bars; 4-hoisting rings; 5-water stop steel plate.
Detailed Description
The invention will be further described with reference to the following figures and specific examples, but the scope of the invention is not limited thereto.
The invention relates to a construction method of a basement sump structure, which comprises the following specific steps:
step 1: prefabricating a water-collecting pit concrete structure shown in figures 1 and 2 in advance, and binding reinforcing steel bars on a water-collecting pit bottom plate 1 and side walls 2 in a centralized manner; the thickness of the bottom plate 1 of the water collecting pit is 400mm, the height of the side walls 2 on the periphery is 300mm, and the size of a groove formed by the bottom plate 1 of the water collecting pit and the side walls 2 is 1000 multiplied by 300 mm; the reserved side wall steel bars 3 are used for being connected with the basement bottom plate in the subsequent construction, and the basement bottom plate steel bars and the reserved side wall steel bars 3 are connected in a mode of steel bar mechanical connection or binding connection; side wall reinforcing bar 3 reaches the bending to the summit, forms the vertical section of reinforcing bar and the straight section of reinforcing bar after buckling, and the distance of the vertical section top of reinforcing bar to 1 upper surface of sump pit bottom plate is 1200 mm.
When adopting reinforcing bar mechanical connection, after side wall reinforcing bar 3 pushed to the summit and buckled, the requirement of the straight section reserved length of reinforcing bar was: the length of 1000mm and the length of (1000-35 d) mm are reserved alternately, and d represents the diameter of the side wall steel bar 3. When adopting the ligature connection, after side wall reinforcing bar 3 pushed to the summit and buckled, the length requirement was reserved to the straight section of reinforcing bar: 1000mm long and (1000-1.3L)LRaft) mm length alternately reserved or 1000mm length and (1000-1.3L)LE) And reserving alternately for mm lengths.
Step 2: as shown in fig. 1 and 2, two phi 16 round steel hanging rings 4 are arranged in the middle of a prefabricated sump bottom plate 1 and used for hoisting a sump structure, wherein the distance between the center of each hanging ring 4 and the nearest side wall 2 is 200mm, and the distance between the top of each hanging ring 4 and the sump bottom plate 1 is 100 mm. The water stop steel plates 5 with the width of 300mm and the thickness of 4mm are arranged at the horizontal construction joint positions of the low walls on the periphery of the water collecting pit, and corners of the water stop steel plates 5 are mutually overlapped.
And step 3: as shown in fig. 3, when the strength of the concrete of the prefabricated sump concrete structure is greater than or equal to 80%, the prefabricated sump concrete structure is hoisted to the position designed by the engineering project drawing for installation; and the reserved side wall reinforcing steel bars 3 are mechanically or colligating connected with the reinforcing steel bars of the bottom plate of the surrounding basement.
And 4, step 4: after the installation is finished, the residual wall structure of the sump pit is reinforced by using a template wood beam and a steel pipe, a double faced adhesive tape is arranged at the lower opening of the template, the condition that the lower opening of the template does not leak mortar is ensured, and after the template reinforcement is finished, the concrete structure of the sump pit and the concrete of the basement bottom plate are cast and molded together.
The dimensional parameters described in the present example are preferred embodiments, and the units of the dimensional parameters marked in the drawings of the specification are all millimeters (mm). The surface of the groove formed by the water collecting pit bottom plate 1 and the side wall 2 is sequentially provided with a waterproof protective layer, a waterproof coiled material layer and a 100mm thick cushion layer from bottom to top. By adopting the construction method, the concrete of the side wall 2 of the sump can be vibrated safely when poured, and the problem of leakage caused by non-compact vibration can be avoided; the whole body of the sump concrete is compact and reliable, the sump concrete is not easy to leak, and even if slight leakage exists, the leakage stoppage work can be very simple.
The present invention is not limited to the above-described embodiments, and any obvious improvements, substitutions or modifications can be made by those skilled in the art without departing from the spirit of the present invention.
Claims (7)
1. A construction method of a basement sump structure is characterized by comprising the following steps:
step 1: prefabricating a sump concrete structure in advance, binding reinforcing steel bars on a sump bottom plate (1) and side walls (2) in a concentrated manner, and reserving side wall reinforcing steel bars (3) for connecting with a basement bottom plate;
step 2: two round steel hoisting rings (4) for hoisting a sump structure are arranged in the middle of the prefabricated sump bottom plate (1); water stop steel plates (5) are arranged at the horizontal construction joint positions of the low walls on the periphery of the water collecting pit;
and step 3: when the strength of the prefabricated concrete structure of the sump pit is more than or equal to 80%, hoisting the sump pit concrete structure to the position designed by the engineering project drawing for installation;
and 4, step 4: after the installation is finished, the residual wall structure of the sump is supported and reinforced by using template wood purlins and steel pipes; the lower opening of the template is provided with double faced adhesive tape to ensure that the lower opening of the template is not leaked; the concrete structure of the water collecting pit and the concrete of the basement bottom plate are poured and formed together.
2. The construction method of the basement sump structure according to claim 1, wherein the top of the side wall steel bars (3) is bent to form a steel bar vertical section and a steel bar flat section.
3. The construction method of the basement sump structure according to claim 2, wherein the side wall steel bars (3) and the basement bottom plate steel bars are connected in a steel bar mechanical connection or a binding connection mode.
4. The construction method of the basement sump structure according to claim 3, wherein when the side wall steel bars (3) are mechanically connected with the basement bottom plate by steel bars, the reserved length of the straight section of the steel bars is as follows: 1000mm long and (1000-35 d) mm long, and reserved alternately.
5. The basement sump structure of claim 3The construction method is characterized in that when the side wall steel bars (3) are bound and connected with the basement bottom plate, the reserved length of the straight section of the steel bars is as follows: 1000mm long and (1000-1.3L)LRaft) mm long or (1000-1.3L)LE) mm long, reserved alternately.
6. The construction method of basement sump structure according to claim 1, characterized in that the corners of the water stop steel plates (5) are lapped with each other.
7. The construction method of the basement sump structure according to claim 1, characterized in that a waterproof protective layer, a waterproof coil layer and a cushion layer are sequentially arranged on the surface of the groove formed by the sump bottom plate (1) and the side wall (2) from bottom to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011291209.XA CN112359874A (en) | 2020-11-18 | 2020-11-18 | Construction method of basement sump structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011291209.XA CN112359874A (en) | 2020-11-18 | 2020-11-18 | Construction method of basement sump structure |
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| CN112359874A true CN112359874A (en) | 2021-02-12 |
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| CN202011291209.XA Pending CN112359874A (en) | 2020-11-18 | 2020-11-18 | Construction method of basement sump structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115110539A (en) * | 2022-07-06 | 2022-09-27 | 中建八局第三建设有限公司 | Construction method for erecting formwork on one side around sump pit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100996152B1 (en) * | 2010-04-02 | 2010-11-23 | 주식회사 로드맥스 엔지니어링 | Prefabricated catch pit using extruded member |
| CN106638645A (en) * | 2016-12-29 | 2017-05-10 | 上海建工四建集团有限公司 | Layering prefabricated structure and building method of basement bottom board water collection pit reinforcing mesh |
| CN110397148A (en) * | 2019-07-22 | 2019-11-01 | 中铁第四勘察设计院集团有限公司 | A kind of prefabricated assembled catch pit structure and construction method |
| CN209891719U (en) * | 2019-04-28 | 2020-01-03 | 中铁四局集团有限公司 | Well pit inner mould box is built in room |
| CN111452183A (en) * | 2020-04-10 | 2020-07-28 | 中国水利水电第一工程局有限公司 | Prefabricated water collecting pit and construction method thereof |
-
2020
- 2020-11-18 CN CN202011291209.XA patent/CN112359874A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100996152B1 (en) * | 2010-04-02 | 2010-11-23 | 주식회사 로드맥스 엔지니어링 | Prefabricated catch pit using extruded member |
| CN106638645A (en) * | 2016-12-29 | 2017-05-10 | 上海建工四建集团有限公司 | Layering prefabricated structure and building method of basement bottom board water collection pit reinforcing mesh |
| CN209891719U (en) * | 2019-04-28 | 2020-01-03 | 中铁四局集团有限公司 | Well pit inner mould box is built in room |
| CN110397148A (en) * | 2019-07-22 | 2019-11-01 | 中铁第四勘察设计院集团有限公司 | A kind of prefabricated assembled catch pit structure and construction method |
| CN111452183A (en) * | 2020-04-10 | 2020-07-28 | 中国水利水电第一工程局有限公司 | Prefabricated water collecting pit and construction method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115110539A (en) * | 2022-07-06 | 2022-09-27 | 中建八局第三建设有限公司 | Construction method for erecting formwork on one side around sump pit |
| CN115110539B (en) * | 2022-07-06 | 2024-03-01 | 中建八局第三建设有限公司 | Construction method for single-side formwork around water collection pit |
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Application publication date: 20210212 |
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