CN216615923U - Deep basal pit confined water precipitation well steel casing pipe block structure - Google Patents
Deep basal pit confined water precipitation well steel casing pipe block structure Download PDFInfo
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- CN216615923U CN216615923U CN202122972438.4U CN202122972438U CN216615923U CN 216615923 U CN216615923 U CN 216615923U CN 202122972438 U CN202122972438 U CN 202122972438U CN 216615923 U CN216615923 U CN 216615923U
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Abstract
The utility model discloses a steel sleeve plugging structure of a deep foundation pit confined water precipitation well, which comprises a concrete bottom plate, a steel bar base, an overflow pipe, a valve and a precipitation well, wherein the precipitation well is vertically arranged below the concrete bottom plate, the steel sleeve is vertically arranged above the precipitation well, the outer wall of the steel sleeve is provided with an outer water stop ring which is fixedly connected, the inner wall of the steel sleeve is provided with an inner water stop ring which is fixedly connected, the outer water stop ring is arranged corresponding to the inner water stop ring, the upper surface of the inner water stop ring is provided with a flange cover, the inner water stop ring is connected with the flange cover through a connecting bolt, a rubber gasket is arranged between the inner water stop ring and the flange cover, the overflow pipe is fixedly connected with the flange cover, the overflow pipe is vertically arranged above the precipitation well, the valve is arranged on the overflow pipe, the top end of the outer side wall of the concrete precipitation well is provided with a gasket layer, the upper surface of the concrete gasket layer and the outer side wall of the steel sleeve are provided with a waterproof layer, and the waterproof layer is positioned below the outer water stop ring.
Description
Technical Field
The utility model relates to a plugging structure for constructional engineering, in particular to a steel sleeve plugging structure for a deep foundation pit confined water dewatering well.
Background
In foundation pit engineering, in order to ensure safe construction operation of construction machinery and workers in a foundation pit, underground water is generally reduced to a construction working surface below 0.5-1m, precipitation wells are arranged at the periphery of the deep foundation pit to reduce the underground water level of the foundation pit, or the precipitation wells in the foundation pit are arranged at proper positions of the deep foundation pit and are blocked, at present, the precipitation wells in the foundation pit are mostly blocked by mounting flanges, and the existing blocking method is generally as follows: the grouting plugging in the well, the method has the following problems: firstly, the engineering quantity is large, the construction period is long, and the cost is high; secondly, the stagnant water effect is not good, and later stage easily produces the seepage, influences the safe service function of structure.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the technology and provide a steel casing plugging structure of a confined water precipitation well of a deep foundation pit.
In order to solve the technical problems, the utility model provides a technical scheme that the steel casing plugging structure of the deep foundation pit confined water precipitation well comprises a concrete bottom plate, a steel bar base, an overflow pipe, a valve and a precipitation well, wherein the precipitation well is vertically arranged below the concrete bottom plate, the steel casing is vertically arranged above the precipitation well, the outer wall of the steel casing is provided with an outer water stop ring which is fixedly connected, the inner wall of the steel casing is provided with an inner water stop ring which is fixedly connected, the outer water stop ring and the inner water stop ring are arranged in a position corresponding to each other, the upper surface of the inner water stop ring is provided with a flange cover, the inner water stop ring is connected with the flange cover through a connecting bolt, a rubber gasket is arranged between the inner water stop ring and the flange cover, the overflow pipe is fixedly connected with the flange cover, the overflow pipe is vertically arranged above the precipitation well, the overflow pipe is provided with the valve, and the top end of the outer side wall of the precipitation well is provided with a concrete cushion layer, and waterproof layers are arranged on the upper surface of the concrete cushion layer and the outer side wall of the steel sleeve and are positioned below the outer water stop ring.
Furthermore, a steel bar base is arranged in the concrete cushion layer.
Furthermore, the interior of the dewatering well is provided with sand and stone and dry cement from bottom to top.
Furthermore, the steel sleeve is internally provided with expansive concrete.
Compared with the prior art, the utility model has the advantages that: the utility model has reasonable structural design and convenient use, can realize the purpose of firmly plugging the dewatering well, has good water stopping effect and anti-permeability performance, and can effectively avoid the problem of leakage after plugging the dewatering well.
Drawings
FIG. 1 is a schematic structural diagram of a steel casing plugging structure of a deep foundation pit confined water dewatering well of the utility model.
As shown in the figure: 1. the concrete water-saving device comprises gravel, 2 parts of dry cement, 3 parts of concrete cushion, 4 parts of connecting bolts, 5 parts of waterproof layers, 6 parts of outer water-stopping rings, 7 parts of steel sleeves, 8 parts of expanded concrete, 9 parts of flange covers, 10 parts of rubber gaskets, 11 parts of inner water-stopping rings, 12 parts of concrete bottom plates, 13 parts of steel bar bases, 14 parts of overflow pipes, 15 parts of valves, 16 parts of dewatering wells.
Detailed Description
The following describes the deep foundation pit confined water dewatering well steel casing plugging structure in further detail with reference to the accompanying drawings.
With reference to the attached drawing 1, the deep foundation pit confined water precipitation well steel casing plugging structure comprises a concrete bottom plate 12, a steel bar base 13, an overflow pipe 14, a valve 15 and a precipitation well 16, wherein the precipitation well 16 is vertically arranged below the concrete bottom plate 12, the steel casing 7 is vertically arranged above the precipitation well 16, the outer wall of the steel casing 7 is provided with an outer water stop ring 6 fixedly connected with the outer water stop ring 6, the inner wall of the steel casing 7 is provided with an inner water stop ring 11 fixedly connected with the inner water stop ring 11, the outer water stop ring 6 is arranged corresponding to the inner water stop ring 11, the upper surface of the inner water stop ring 11 is provided with a flange cover 9, the inner water stop ring 11 is connected with the flange cover 9 through a connecting bolt 4, a rubber gasket 10 is arranged between the inner water stop ring 11 and the flange cover 9, the overflow pipe 14 is fixedly connected with the flange cover 9, the overflow pipe 14 is vertically arranged above the precipitation well 16, and the overflow pipe 14 is provided with the valve 15, the concrete cushion 3 is arranged at the top end of the outer side wall of the dewatering well 16, the waterproof layer 5 is arranged on the upper surface of the concrete cushion 3 and the outer side wall of the steel sleeve 7, and the waterproof layer 5 is located below the outer water stop ring 6.
As a preferred embodiment of the present embodiment, a steel bar base 13 is provided in the concrete pad 3.
In the preferred embodiment of this embodiment, the dewatering well 16 is provided with sand 1 and dry cement 2 from bottom to top.
In the preferred embodiment of this embodiment, the steel casing 7 is provided with expansive concrete 8.
In the concrete implementation of the utility model, during the construction of the concrete cushion 3, a steel sleeve 7 is additionally arranged, the outer wall of the steel sleeve 7 is provided with a fixedly connected outer water stop ring 6, the inner wall of the steel sleeve 7 is provided with a fixedly connected inner water stop ring 11, the outer water stop ring 6 and the inner water stop ring 11 are arranged correspondingly, a valve 15 is arranged on the overflow pipe 14, when the precipitation operation is carried out, a precipitation pump is erected, the bottom of a precipitation well 16 is sequentially filled with sand and stone 1 and dry cement 2, the dry cement 2 is backfilled to the position of the inner water stop ring 11, the valve 15 is in an open state at the moment so as to drain water and reduce pressure, the flange cover 9 is favorably installed, a rubber gasket 10 is arranged between the inner water stop ring 11 and the flange cover 9, the overflow pipe 14 is fixedly connected with the flange cover 9, after the flange cover 9 is installed, the valve 15 is closed, the overflow pipe 14 on the valve 15 is dismantled, and simultaneously the expanded concrete 8 is poured on the upper layer of the steel sleeve 7, and finishing the plugging work.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (4)
1. A deep foundation pit confined water precipitation well steel casing pipe plugging structure is characterized by comprising a concrete bottom plate (12), a steel bar base (13), an overflow pipe (14), a valve (15) and a precipitation well (16), wherein the precipitation well (16) is vertically arranged below the concrete bottom plate (12), the steel casing pipe (7) is vertically arranged above the precipitation well (16), the outer wall of the steel casing pipe (7) is provided with an outer water stop ring (6) fixedly connected, the inner wall of the steel casing pipe (7) is provided with an inner water stop ring (11) fixedly connected, the outer water stop ring (6) and the inner water stop ring (11) are correspondingly arranged, the upper surface of the inner water stop ring (11) is provided with a flange cover (9), the inner water stop ring (11) is connected with the flange cover (9) through a connecting bolt (4), and a rubber gasket (10) is arranged between the inner water stop ring (11) and the flange cover (9), overflow pipe (14) and blind flange (9) fixed connection, and overflow pipe (14) along vertical setting in precipitation well (16) top, and be provided with valve (15) on overflow pipe (14), the lateral wall top of precipitation well (16) is equipped with concrete cushion (3), the lateral wall of concrete cushion (3) upper surface and steel casing (7) is equipped with waterproof layer (5), and waterproof layer (5) are located the below of outer seal ring (6).
2. The plugging structure of the steel sleeve of the confined water dewatering well of the deep foundation pit according to claim 1, wherein a steel bar base (13) is arranged in the concrete cushion (3).
3. The plugging structure of the steel sleeve of the deep foundation pit confined water dewatering well according to claim 1, wherein the dewatering well (16) is internally provided with sand and stone (1) and dry cement (2) from bottom to top.
4. The plugging structure of the steel sleeve of the confined water precipitation well of the deep foundation pit according to claim 1, wherein the expanded concrete (8) is arranged in the steel sleeve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122972438.4U CN216615923U (en) | 2021-11-30 | 2021-11-30 | Deep basal pit confined water precipitation well steel casing pipe block structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122972438.4U CN216615923U (en) | 2021-11-30 | 2021-11-30 | Deep basal pit confined water precipitation well steel casing pipe block structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216615923U true CN216615923U (en) | 2022-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122972438.4U Active CN216615923U (en) | 2021-11-30 | 2021-11-30 | Deep basal pit confined water precipitation well steel casing pipe block structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216615923U (en) |
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2021
- 2021-11-30 CN CN202122972438.4U patent/CN216615923U/en active Active
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