CN218622291U - Foundation pit dewatering and well sealing construction structure - Google Patents
Foundation pit dewatering and well sealing construction structure Download PDFInfo
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- CN218622291U CN218622291U CN202222401955.0U CN202222401955U CN218622291U CN 218622291 U CN218622291 U CN 218622291U CN 202222401955 U CN202222401955 U CN 202222401955U CN 218622291 U CN218622291 U CN 218622291U
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Abstract
The utility model relates to the technical field of foundation pit dewatering engineering, in particular to a foundation pit dewatering and well sealing construction structure, which comprises a galvanized steel pipe communicated with a dewatering well and a sealing ring; the flexible rubber filler is filled between the galvanized steel pipe and the dewatering well; the plain concrete cushion layer is arranged above the dewatering well, and a raft is arranged above the plain concrete cushion layer; the plugging steel plate is arranged at the top of the galvanized steel pipe, and the plugging steel plate and the top of the galvanized steel pipe are fixed in a full-welding mode; the utility model discloses under the state of drawing water, directly watering the micro-expansive concrete, treat the micro-expansive concrete solidification back, abandon the immersible pump, weld the shutoff steel sheet to water the micro-expansive concrete once more, thereby accomplish the shutoff to precipitation well, effectively avoid appearing the condition that concrete setting time is not enough, with the assurance well shut-in effect.
Description
Technical Field
The utility model relates to a foundation ditch precipitation engineering technical field specifically is a foundation ditch precipitation and shut-in construction structures.
Background
Traditional elevator shaft and deeper foundation ditch dewatering engineering such as sump pit, when its shut-in well, generally adopt following construction scheme. And after the submersible pump for drainage is taken out, pouring a large amount of concrete, sealing the well by utilizing the gravity action of a sufficient amount of concrete and a large amount of cement dry powder, and absorbing water by utilizing the cement dry powder to make the concrete dry and hard.
In the prior art, the following problems exist:
the method is not suitable for high water level areas and areas with large water inflow, after the submersible pump is taken out, the concrete is not solidified for enough time, the concrete is washed away, the waterproof effect is influenced, the bottom plate of the foundation is leaked, and the well sealing effect is influenced, so that the limitation exists.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a foundation ditch precipitation and shut-in construction structure to solve the problem that proposes in the above-mentioned background art.
The technical scheme of the utility model is that: a foundation pit dewatering and well sealing construction structure comprises a galvanized steel pipe communicated with a dewatering well and a steel pipe;
the flexible rubber filler is filled between the galvanized steel pipe and the dewatering well;
the plain concrete cushion layer is arranged above the dewatering well, and a raft is arranged above the plain concrete cushion layer;
the steel plate is arranged at the top of the galvanized steel pipe, and the steel plate and the top of the galvanized steel pipe are fixed in a full-welding mode.
Preferably, two stagnant water steel sheets, stagnant water steel sheet is fixed to be set up at galvanized steel pipe's circumference outer wall both ends.
Preferably, the interior of the dewatering well is filled with high-quality clay.
Preferably, the interior of the galvanized steel pipe and the upper part of the plugging steel plate are filled with micro-expansion concrete.
The utility model discloses an improve and provide a foundation ditch precipitation and shut-in construction structure here, compare with prior art, have following improvement and advantage:
the utility model discloses do not take out the immersible pump, under the state of drawing water, directly water the micro-expansive concrete, treat the micro-expansive concrete solidification back, abandon the immersible pump, weld the shutoff steel sheet to water the micro-expansive concrete once more, thereby accomplish the shutoff to precipitation well, effectively avoid appearing the condition that the concrete setting time is not enough, with the assurance well-sealing effect, and have the advantage of drawing materials simply, that construction cost is low.
Drawings
The invention is further explained below with reference to the figures and examples:
FIG. 1 is a schematic view of the state structure of the galvanized steel pipe of the utility model when the raft is worn;
FIG. 2 is a schematic view of the structure of the galvanized steel pipe of the present invention in a closed state.
Description of reference numerals:
1. a dewatering well; 2. a flexible rubber filler; 3. a galvanized steel pipe; 4. a water stop steel plate; 5. a plain concrete cushion; 6. a raft plate; 7. high-quality clay; 8. micro-expansive concrete; 9. and (5) plugging the steel plate.
Detailed Description
The present invention will be described in detail below, and it is apparent that the technical solutions in the embodiments of the present invention are described clearly and completely. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model discloses an improve and provide a foundation ditch precipitation and shut-in construction structure here, the technical scheme of the utility model is:
as shown in fig. 1-2, a foundation pit dewatering and well sealing construction structure comprises a galvanized steel pipe 3 communicated with a dewatering well 1, and further comprises;
the flexible rubber filler 2 is filled between the galvanized steel pipe 3 and the dewatering well 1;
the plain concrete cushion layer 5 is arranged above the dewatering well 1, and the raft 6 is arranged above the plain concrete cushion layer 5;
the plugging steel plate 9 is arranged at the top of the galvanized steel pipe 3, and the plugging steel plate 9 is fixed with the top of the galvanized steel pipe 3 in a full-length welding mode.
Wherein the galvanized steel pipe 3 has the specification of 200mm diameter and 8mm wall thickness; the thickness of the plugging steel plate 9 is 10mm; the galvanized steel pipes 3 are 200mm higher than the top surface of the raft 6.
Furthermore, two stagnant water steel sheets 4, stagnant water steel sheet 4 are fixed to be set up at galvanized steel pipe 3's circumference outer wall both ends.
Further, the interior of the dewatering well 1 is filled with high-quality clay 7.
Furthermore, the interior of the galvanized steel pipe 3 and the upper part of the plugging steel plate 9 are filled with micro-expansion concrete 8.
The specific working method comprises the following steps: the darker foundation ditch of local elevartor shaft and sump pit, the anhydrous environment need be guaranteed in the bottom plate construction, the water level should be below 0.5m behind the precipitation, precipitation well 1 needs the drainage in succession, guarantee raft 6 waterproof system's integrality simultaneously, wear out drain pipe and water pump cable through the galvanized steel pipe 3 that sets up, galvanized steel pipe 3 that is provided with stagnant water steel sheet 4 runs through raft 6, under the state of drawing water, direct watering micro-expansion concrete 8, treat after the precipitation, abandon the well water pump, adopt shutoff steel sheet 9 to carry out the full weld shutoff to galvanized steel pipe 3, reuse micro-expansion concrete 8 and pour to 6 tops of raft, the completion is to the shutoff of precipitation well 1, the overall construction design has simple to draw materials, the benefit that construction cost is low.
Claims (4)
1. The utility model provides a foundation ditch precipitation and shut-in well construction structures, includes galvanized steel pipe (3) that are linked together with precipitation well (1), its characterized in that: also comprises the following steps;
the flexible rubber filler (2) is filled between the galvanized steel pipe (3) and the dewatering well (1);
the plain concrete cushion layer (5) is arranged above the dewatering well (1), and a raft (6) is arranged above the plain concrete cushion layer (5);
plugging steel plate (9), plugging steel plate (9) set up at the top of galvanized steel pipe (3), and plugging steel plate (9) adopts the full weld mode fixed with the top of galvanized steel pipe (3).
2. The foundation pit dewatering and well sealing construction structure as claimed in claim 1, wherein: two water stop steel plates (4), the water stop steel plates (4) are fixedly arranged at two ends of the circumferential outer wall of the galvanized steel pipe (3).
3. The foundation pit dewatering and well sealing construction structure as claimed in claim 1, wherein: the interior of the dewatering well (1) is filled with high-quality clay (7).
4. The foundation pit dewatering and well sealing construction structure as claimed in claim 1, wherein: and micro-expansion concrete (8) is filled in the galvanized steel pipe (3) and above the plugging steel plate (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222401955.0U CN218622291U (en) | 2022-09-09 | 2022-09-09 | Foundation pit dewatering and well sealing construction structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222401955.0U CN218622291U (en) | 2022-09-09 | 2022-09-09 | Foundation pit dewatering and well sealing construction structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218622291U true CN218622291U (en) | 2023-03-14 |
Family
ID=85466696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222401955.0U Active CN218622291U (en) | 2022-09-09 | 2022-09-09 | Foundation pit dewatering and well sealing construction structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218622291U (en) |
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2022
- 2022-09-09 CN CN202222401955.0U patent/CN218622291U/en active Active
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