CN212078203U - A sump pit structure for tunnel access & exit - Google Patents
A sump pit structure for tunnel access & exit Download PDFInfo
- Publication number
- CN212078203U CN212078203U CN202020685615.3U CN202020685615U CN212078203U CN 212078203 U CN212078203 U CN 212078203U CN 202020685615 U CN202020685615 U CN 202020685615U CN 212078203 U CN212078203 U CN 212078203U
- Authority
- CN
- China
- Prior art keywords
- water collecting
- partition plate
- cover plate
- catch basin
- manhole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model provides a sump structure for a tunnel entrance, which comprises a sump wall, a catch basin, an upper cover plate, a middle partition plate, a steel ladder stand and a backfill block; one side of the top surface of the wall of the water collecting pit is built with a catch basin, the top surface of the catch basin is covered with a basin cover, one side of the bottom of the catch basin is provided with a vertical drainage pipe, and the other end of the vertical drainage pipe extends downwards to the water collecting chamber along the side surface of the inner cavity of the wall of the water collecting pit; a rectangular opening is arranged on the top surface of the drainage channel at the position corresponding to the water collecting cavity and serves as a manhole, an upper-layer partition plate is arranged in the manhole inner cover, and small holes are uniformly distributed in an upper-layer cover plate; a pump hole is formed between the drainage channel and the water collecting cavity, and an intermediate partition plate is arranged in the pump hole; the manhole and the side surface of the pump hole are provided with steel crawling ladders through expansion bolt bolts, the steel crawling ladders extend to the bottom surface of the water collection chamber and one side of the upper cover plate, and the upper cover plate and the middle partition plate are provided with through holes for the steel crawling ladders to pass through; and backfill blocks are built at the corner positions of the bottom surface of the water collecting cavity.
Description
Technical Field
The utility model relates to a building field especially relates to a sump pit structure for tunnel access & exit.
Background
When drainage needs and drainage facility is less than outdoor drainage pipe network, for example in basement or underground garage, need collect sewage waste water or miscellaneous water that need discharge temporarily through setting up certain volumetric sump pit, when accumulating to certain water level, start the drain pump of establishing in the sump pit, promote the height of outdoor drainage pipe network with water, the outdoor pipe network of rethread is discharged. At the tunnel entrance, the arrangement of the water collecting pit influences whether the drainage is smooth, and once a problem occurs, the drainage can easily cause overflow or reverse flow.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's defect and not enough, provide a sump pit structure for tunnel access & exit, this structure makes water inflow through the sump pit, and rethread dredge pump is taken away, draws to keeping away from foundation ditch department and prevents the refluence, can realize introducing ground flowing water through the catch basin.
In order to achieve the above object, the utility model adopts the following technical scheme: a sump pit structure for a tunnel entrance comprises a sump pit wall, a catch basin, an upper cover plate, a middle partition plate, a steel ladder stand and a backfill block; the water collecting pit wall is of a reinforced concrete underground shaft structure and comprises a transverse drainage channel and a water collecting chamber built on the bottom surface of the drainage channel, and the side surface of one side of the water collecting chamber and the side surface of one side of the drainage channel are positioned on the same vertical plane; one side of the top surface of the wall of the water collecting pit is built with a catch basin, the top surface of the catch basin is covered with a basin cover, one side of the bottom of the catch basin is provided with a vertical drainage pipe, and the other end of the vertical drainage pipe extends downwards to the water collecting chamber along the side surface of the inner cavity of the wall of the water collecting pit; a rectangular opening is arranged on the top surface of the drainage channel at the position corresponding to the water collecting cavity and serves as a manhole, an upper-layer partition plate is arranged in the manhole inner cover, and small holes are uniformly distributed in an upper-layer cover plate; a pump hole is arranged between the drainage channel and the water collecting cavity, a middle partition plate is arranged in the pump hole in an inner cover mode, the shape and the size of the middle partition plate are consistent with those of the upper cover plate, and 4-6 reserved holes of 200 x 200mm are further formed in the periphery of the middle partition plate; the manhole and the side surface of the pump hole are provided with steel crawling ladders through expansion bolt bolts, the steel crawling ladders extend to the bottom surface of the water collection chamber and one side of the upper cover plate, and the upper cover plate and the middle partition plate are provided with through holes for the steel crawling ladders to pass through; and the corner position of the bottom surface of the water collecting cavity is built with a backfill block, and the backfill block is a right-angle trapezoid plain concrete structure.
Preferably, a waterproof roll layer is laid on the inner surface of the wall of the water collecting pit, and a cement mortar smearing layer is built on the surface of the waterproof roll layer.
Preferably, the manhole and the edge of the pump hole are both built with a protrusion extending 300mm toward the center.
The utility model has the advantages that: this structure makes water inflow through the sump pit, and rethread dredge pump is taken away, leads to keeping away from foundation ditch department and prevents the refluence, can realize leading ground flowing water through intercepting ditch.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention.
Fig. 1 is a schematic diagram of a sump structure, fig. 2 is a schematic diagram of an upper cover plate, and fig. 3 is a schematic diagram of a middle partition plate.
Wherein: 1 is a water collecting pit wall, 2 is a catch basin, 21 is a vertical drainage pipe, 3 is an upper cover plate, 4 is a middle partition plate, 5 is a steel ladder stand, and 6 is a backfill block.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in the figure, the sump structure for the tunnel entrance comprises a sump wall 1, a catch basin 2, an upper cover plate 3, a middle partition plate 4, a steel ladder 5 and a backfill block 6; the water collecting pit wall 1 is of a reinforced concrete underground shaft structure, the water collecting pit wall 1 comprises a transverse drainage channel and a water collecting chamber built on the bottom surface of the drainage channel, and the side surface of one side of the water collecting chamber and the side surface of one side of the drainage channel are positioned on the same vertical plane; one side of the top surface of the water collecting pit wall 1 is built with a catch basin 2, the top surface of the catch basin 2 is covered with a basin cover, one side of the bottom is provided with a vertical drainage pipe 21, and the other end of the vertical drainage pipe 21 extends downwards to a water collecting chamber along the side surface of the inner cavity of the water collecting pit wall 1; a rectangular opening is arranged on the top surface of the drainage channel at the position corresponding to the water collecting cavity and serves as a manhole, an upper-layer partition plate 3 is arranged on an inner cover of the manhole, and small holes are uniformly distributed in the upper-layer cover plate 3; a pump hole is arranged between the drainage channel and the water collecting cavity, a middle partition plate 4 is arranged in the pump hole in an inner cover mode, the shape and the size of the middle partition plate 4 are consistent with those of the upper cover plate 3, and 4-6 reserved holes of 200 x 200mm are further formed in the periphery of the middle partition plate 4; the manhole and the side surface of the pump hole are provided with steel crawling ladders 5 through expansion bolt bolts, the steel crawling ladders 5 extend to the bottom surface of the water collection chamber and one side of the upper cover plate, and the upper cover plate 3 and the middle partition plate 4 are provided with through holes for the steel crawling ladders 5 to pass through; and a backfill block 6 is built at the corner position of the bottom surface of the water collecting cavity, and the backfill block 6 is of a right-angle trapezoid plain concrete structure.
When the method is specifically implemented, a waterproof coil layer is laid on the inner surface of the water collecting pit wall 1, and a cement mortar smearing layer is built on the surface of the waterproof coil layer.
During specific implementation, the edges of the manhole and the pump hole are both provided with bulges which extend 300mm towards the center.
Claims (3)
1. A sump structure for tunnel access & exit which characterized in that: comprises a catchment pit wall, a catch basin, an upper cover plate, a middle partition plate, a steel ladder stand and a backfill block; the water collecting pit wall is of a reinforced concrete underground shaft structure and comprises a transverse drainage channel and a water collecting chamber built on the bottom surface of the drainage channel, and the side surface of one side of the water collecting chamber and the side surface of one side of the drainage channel are positioned on the same vertical plane; one side of the top surface of the wall of the water collecting pit is built with a catch basin, the top surface of the catch basin is covered with a basin cover, one side of the bottom of the catch basin is provided with a vertical drainage pipe, and the other end of the vertical drainage pipe extends downwards to the water collecting chamber along the side surface of the inner cavity of the wall of the water collecting pit; a rectangular opening is arranged on the top surface of the drainage channel at the position corresponding to the water collecting cavity and serves as a manhole, an upper-layer partition plate is arranged in the manhole inner cover, and small holes are uniformly distributed in an upper-layer cover plate; a pump hole is arranged between the drainage channel and the water collecting cavity, a middle partition plate is arranged in the pump hole in an inner cover mode, the shape and the size of the middle partition plate are consistent with those of the upper cover plate, and 4-6 reserved holes of 200 x 200mm are further formed in the periphery of the middle partition plate; the manhole and the side surface of the pump hole are provided with steel crawling ladders through expansion bolt bolts, the steel crawling ladders extend to the bottom surface of the water collection chamber and one side of the upper cover plate, and the upper cover plate and the middle partition plate are provided with through holes for the steel crawling ladders to pass through; and the corner position of the bottom surface of the water collecting cavity is built with a backfill block, and the backfill block is a right-angle trapezoid plain concrete structure.
2. A sump structure for a tunnel doorway according to claim 1 wherein: and a waterproof coil layer is laid on the inner surface of the wall of the water collecting pit, and a cement mortar smearing layer is built on the surface of the waterproof coil layer.
3. A sump structure for a tunnel doorway according to claim 1 wherein: the manhole and the pump hole edge are both built with bulges which extend 300mm towards the center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020685615.3U CN212078203U (en) | 2020-04-28 | 2020-04-28 | A sump pit structure for tunnel access & exit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020685615.3U CN212078203U (en) | 2020-04-28 | 2020-04-28 | A sump pit structure for tunnel access & exit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212078203U true CN212078203U (en) | 2020-12-04 |
Family
ID=73593056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020685615.3U Expired - Fee Related CN212078203U (en) | 2020-04-28 | 2020-04-28 | A sump pit structure for tunnel access & exit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212078203U (en) |
-
2020
- 2020-04-28 CN CN202020685615.3U patent/CN212078203U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |