CN109881684B - Dampproofing water facility of foundation ditch civil engineering construction - Google Patents
Dampproofing water facility of foundation ditch civil engineering construction Download PDFInfo
- Publication number
- CN109881684B CN109881684B CN201910279882.2A CN201910279882A CN109881684B CN 109881684 B CN109881684 B CN 109881684B CN 201910279882 A CN201910279882 A CN 201910279882A CN 109881684 B CN109881684 B CN 109881684B
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- Prior art keywords
- steel
- plate box
- steel plate
- drain pipe
- foundation pit
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 238000010276 construction Methods 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 125
- 239000010959 steel Substances 0.000 claims abstract description 125
- 238000003860 storage Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000013535 sea water Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The invention discloses a moisture-proof facility for foundation pit civil construction, which comprises a steel plate box, wherein channel steel inserted into the bottom of a foundation pit is arranged on the periphery of the outer side wall of the steel plate box, a water drain hole is formed in the lower portion of the steel plate box, a steel water drain pipe is arranged on the outer wall of the water drain hole, and a steel screw cap for sealing the steel water drain pipe is arranged at a port of the steel water drain pipe. The moisture-proof facility has the advantages of simple structure, low manufacturing cost, low cost, economy, simplicity, practicability and the like, and the steel plate box can not only block moisture but also serve as an outer template for the construction of the gate storage room structure.
Description
Technical Field
The invention relates to a moisture-proof water facility for foundation pit civil construction, and belongs to the field of hydraulic engineering.
Background
After the water intake of the coastal power station is built, the situation that the use requirement cannot be met exists in the running process, for example, the original equipment such as a gate and the like is stored in open air, occupies a field and is easy to rust. In order to improve the service life of the equipment and reduce the occupation of sites, proper sites are selected on two sides of the original water intake, and a underground gate storage room is built. In order to create a gate storage room, civil works such as steel bar binding, template supporting, concrete pouring and the like are required to be carried out in the excavated foundation pit. Because the foundation ditch is on land, gate storeroom bottom plate elevation is near average sea tide level, and the foundation ditch periphery is the plain fill backfill layer (including some block stones), and osmotic coefficient is great, when the tide level rises, the sea water will pass the backfill layer and pour into the foundation ditch backward, brings great influence for the civil engineering operation in the foundation ditch, mainly includes two aspects: firstly, the average high tide level is about 1.8m higher than the average sea tide level (the elevation of the bottom of the foundation pit bottom plate), and the operation of workers cannot be continuously carried out after the seawater is filled backward; secondly, the steel bars are soaked in seawater, so that the seawater has stronger corrosiveness, is at higher quality risk and does not meet the specification requirements. If measures are taken, cofferdam, impermeable curtain, high-pressure rotary spraying and other water stopping measures are arranged on the periphery of the foundation pit, the construction cost is high, the construction period is long, and the comprehensive economic index is poor. In order to adapt to the characteristics of adjacent sea in engineering projects and meet the construction requirements of a gate storage room, a foundation pit civil construction damp-proof water facility is needed.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a moisture-proof water facility for foundation pit civil construction, which can meet the construction requirements of a gate storage room and prevent seawater from flowing backward into a foundation pit.
In order to achieve the purpose, the foundation pit civil engineering dampproof water facility comprises a steel plate box, channel steel inserted into the bottom of a foundation pit is arranged on the periphery of the outer side wall of the steel plate box, a water drain hole is formed in the lower portion of the steel plate box, a steel water drain pipe is arranged on the outer wall of the water drain hole, and a steel screw cap for sealing the steel water drain pipe is arranged at a port of the steel water drain pipe.
As an improvement, the channel steel is vertically welded on the side wall of the steel plate box.
As an improvement, channel steel beams are welded around the outer side wall of the steel plate box horizontally, and the channel steel beams are vertically fixed with channel steel.
As an improvement, the inner diameter size of the steel screw cap is the same as the outer diameter size of the steel drain pipe, the inner wall of the steel screw cap is pre-processed with threads, and the outer wall of the steel drain pipe is processed with matched threads.
As an improvement, a waterproof silk ribbon is arranged between the steel screw cap and the steel drain pipe.
As an improvement, an inclination angle is arranged between the steel drain pipe and the horizontal plane.
As an improvement, the inner space size of the steel plate box is matched with the size of the shutter storage chamber.
As an improvement, the height of the steel plate box is matched with the maximum external tide level water head.
Compared with the prior art, the moisture-proof facility has the advantages of simple structure, low manufacturing cost, low cost, economy, simplicity, practicability and the like, and the steel plate box can not only block moisture, but also serve as an outer template for the construction of the gate storage room structure.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along the direction B-B in FIG. 1;
in the figure: 1. the steel plate box, 2, the water drain hole, 3, steel water drain pipe, 4, channel steel crossbeam, 5, channel steel, 6, steel screw cap.
Detailed Description
The present invention will be described in further detail below in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in this description of the invention are for the purpose of describing particular embodiments only and are not intended to be limiting of the invention.
As shown in fig. 1, 2 and 3, a moisture-proof water facility for foundation pit civil engineering comprises a steel plate box 1, channel steel 5 inserted into the bottom of a foundation pit is arranged on the periphery of the outer side wall of the steel plate box 1, a water drain hole 2 is formed in the lower portion of the steel plate box 1, a steel water drain pipe 3 is arranged on the outer wall of the water drain hole 2, and a steel screw cap 6 for sealing the steel water drain pipe 3 is arranged at a port of the steel water drain pipe 3. The steel plate box 1 is used for blocking tide water and also used as an outer template for constructing a gate storage room structure, the steel plate box 1 is used for blocking tide water when steel bars in a foundation pit are bound, and the steel plate box 1 is used as an outer template for constructing the gate storage room structure when the template is supported.
As an improvement of the embodiment, the channel steel 5 is welded on the side wall of the steel plate box 1 vertically. The steel plate box 1 is characterized in that channel steel beams 4 are welded around the outer side wall of the steel plate box 1 in a horizontal mode, the channel steel beams 4 are vertically fixed with channel steel 5, welding is preferably adopted between the channel steel beams 4 and the channel steel 5, and rigidity of the whole structure is improved through the channel steel beams 4.
As an improvement of the embodiment, the inner diameter size of the steel screw cap 6 is the same as the outer diameter size of the steel drain pipe 3, threads are pre-machined on the inner wall of the steel screw cap 6, matched threads are machined on the outer wall of the steel drain pipe 3, and the steel screw cap 6 is screwed and fastened on the steel drain pipe 3, so that the effect of sealing the drain pipe 3 is achieved.
As an improvement of the embodiment, a waterproof ribbon is further arranged between the steel screw cap 6 and the steel drain pipe 3, and the sealing effect is good.
As an improvement of the embodiment, an inclination angle is arranged between the steel drain pipe 3 and the horizontal plane.
As an improvement of the embodiment, the size of the inner space of the steel plate box 1 is matched with the size of the gate storage room.
As an improvement of the embodiment, the height of the steel plate box 1 is matched with the maximum external tide level head.
During construction, the maximum appearance size (length and width) of the gate storage chamber is calculated, the size (length and width) of the steel plate box 1 and the steel plate specification (8 mm thick steel plate is taken in this example) of the processed steel plate box 1 are determined according to the size, and then the height (the maximum external tide level water head +10cm is taken in this example) of the steel plate box 1 and the type (20 channel steel is taken in this example) and the distance (1.5-2 m is taken in this example) and the number (3 and 5 are taken in this example) of the channel steel 5 which is inserted into the bottom of the foundation pit and is arranged around the outer side wall of the steel plate box 1 are calculated and determined according to the maximum external tide level water head to be born by the steel plate box 1 and the concrete pouring stress condition of the gate storage chamber side wall.
Calculating the maximum tap water quantity which can be filled in the steel plate box 1, determining the quantity and the size of the water discharge holes 2 at the bottom of the side wall of the steel plate box 1 according to the water discharge time requirement (1 water discharge hole is taken in the example, the aperture is 20 cm), measuring and lofting the arrangement position of the steel plate box 1 according to the design requirement, paving fine aggregates such as crushed stones on the foundation of the steel plate box for leveling, and reserving a certain gradient (0.3% -0.5% in the example) on the surface of the foundation towards the water discharge hole 2 so as to smoothly discharge the accumulated water in the steel plate box 1; the steel plate box 1 is placed in place or assembled on site, the steel plate box 1 and the steel channel 5 are firmly welded, a plurality of channel steel cross beams 4 (one is taken in this example) are welded around the outer side wall horizontally, a steel drain pipe 3 with pre-processed threads is firmly welded at the drain hole 2, and a certain dip angle (15-degree dip angle is taken in this example) is reserved downwards, and all the working procedures need to get up to tide. After the steel screw cap 6 is screwed and fixed on the steel drain pipe 3, the gate storage room civil engineering construction can be performed in the steel plate box 1.
When rising of tide occurs in the construction process, according to the friction force of the channel steel 5 resisting floating, the self weight of the steel plate box 1 and the weight of the items in the steel plate box 1, tap water can be poured into the steel plate box 1 to offset the buoyancy when the floating trend is judged; and when the tide water is removed, unscrewing and taking off the steel screw cap 6, evacuating tap water through the water drain hole 2 and the steel water drain pipe 3, and continuing to perform civil construction of the gate storage room in the foundation pit. Repeating the steps until the construction of the civil engineering project below the highest tide level is finished.
The moisture-proof facility has the advantages of simple structure, low manufacturing cost, low cost, economy, simplicity, practicability and the like, and the steel plate box can not only block moisture but also serve as an outer template for the construction of the gate storage room structure.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the invention.
Claims (5)
1. The moisture-proof facility for foundation pit civil engineering comprises a steel plate box (1), and is characterized in that channel steel (5) inserted into the bottom of a foundation pit is arranged on the periphery of the outer side wall of the steel plate box (1), a water drain hole (2) is formed in the lower portion of the steel plate box (1), a steel water drain pipe (3) is arranged on the outer wall of the water drain hole (2), and a steel screw cap (6) for sealing the steel water drain pipe (3) is arranged at the port of the steel water drain pipe (3);
the inner diameter of the steel screw cap (6) is the same as the outer diameter of the steel drain pipe (3), threads are pre-machined on the inner wall of the steel screw cap (6), matched threads are machined on the outer wall of the steel drain pipe (3), and an inclination angle is formed between the steel drain pipe (3) and a horizontal plane; the height of the steel plate box (1) is matched with the maximum external tide level water head.
2. A foundation pit civil construction moisture-proof water installation according to claim 1, wherein the channel steel (5) is welded vertically to the side wall of the steel plate box (1).
3. The foundation pit civil engineering dampproof water installation according to claim 1, wherein channel steel beams (4) are welded around the outer side wall of the steel plate box (1) horizontally, and the channel steel beams (4) are vertically fixed with channel steel (5).
4. The foundation pit civil engineering dampproof water installation according to claim 1, wherein a waterproof silk ribbon is further arranged between the steel screw cap (6) and the steel drain pipe (3).
5. A foundation pit civil construction moisture proof water installation according to claim 1, wherein the inner space of the steel plate box (1) is matched in size with the size of the gate storage room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910279882.2A CN109881684B (en) | 2019-04-08 | 2019-04-08 | Dampproofing water facility of foundation ditch civil engineering construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910279882.2A CN109881684B (en) | 2019-04-08 | 2019-04-08 | Dampproofing water facility of foundation ditch civil engineering construction |
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| Publication Number | Publication Date |
|---|---|
| CN109881684A CN109881684A (en) | 2019-06-14 |
| CN109881684B true CN109881684B (en) | 2024-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910279882.2A Active CN109881684B (en) | 2019-04-08 | 2019-04-08 | Dampproofing water facility of foundation ditch civil engineering construction |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111139839A (en) * | 2020-01-11 | 2020-05-12 | 成都高质建筑工程有限公司 | Foundation pit support system and construction method thereof |
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