CN219653557U - Gravity flow drainage structure suitable for sinking hole - Google Patents
Gravity flow drainage structure suitable for sinking hole Download PDFInfo
- Publication number
- CN219653557U CN219653557U CN202321378972.5U CN202321378972U CN219653557U CN 219653557 U CN219653557 U CN 219653557U CN 202321378972 U CN202321378972 U CN 202321378972U CN 219653557 U CN219653557 U CN 219653557U
- Authority
- CN
- China
- Prior art keywords
- water
- drain pipe
- site
- sinking
- hole
- 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.)
- Active
Links
- 230000005484 gravity Effects 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 79
- 238000009412 basement excavation Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 description 8
- 239000011435 rock Substances 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The utility model relates to a gravity flow drainage structure suitable for a sinking hole. The utility model is suitable for the technical field of drainage engineering. The utility model aims to solve the technical problems that: a gravity flow drainage structure suitable for a sinking opening is provided. The technical scheme adopted by the utility model is as follows: gravity flow drainage structures suitable for subsidence entrance to a cave excavates in place has subsidence entrance to a cave, its characterized in that: a water collecting well for collecting water seepage of the site is arranged in the site of the sinking hole, and a drain pipe for draining accumulated water in the water collecting well to the outside of the site is arranged in the site; the highest position of the drain pipe is positioned at the water inlet end of the drain pipe.
Description
Technical Field
The utility model relates to the technical field of drainage engineering, in particular to a gravity flow drainage structure suitable for a sinking hole.
Background
In tunnel engineering of a foundation project, in order to meet the requirement of overlying surrounding rock thickness, a hole entrance often needs to sink, and the hole site is lower than the ground by several meters or even tens of meters. The sinking of the opening is important in draining water during the construction period and the running period of the opening. Reasonable setting of drainage measures not only relates to economy and construction convenience of engineering investment, but also influences reliability of water flooding prevention measures in tunnel construction period and operation period.
At present, tunnel drainage mostly adopts the form of drainage, and although drainage effect is showing, engineering cost and human cost that consume for a long time are higher.
Disclosure of Invention
The utility model aims to solve the technical problems that: aiming at the problems, the gravity flow drainage structure suitable for the sinking hole is provided.
The technical scheme adopted by the utility model is as follows: gravity flow drainage structures suitable for subsidence entrance to a cave excavates in place has subsidence entrance to a cave, its characterized in that: a water collecting well for collecting water seepage of the site is arranged in the site of the sinking hole, and a drain pipe for draining accumulated water in the water collecting well to the outside of the site is arranged in the site; the highest position of the drain pipe is positioned at the water inlet end of the drain pipe.
Through the technical means, gravity drainage can be effectively realized by means of the height difference formed by the water inlet end and the water outlet end of the drain pipe, the reliability of long-term drainage of the sinking hole can be ensured, and engineering cost and labor cost are greatly saved compared with a drainage mode.
In some embodiments, a catchment trench is provided in the field, the catchment trench being disposed at a location peripheral to the sinking aperture.
Through the technical means, the intercepting ditch is utilized to prevent the peripheral water body of the sinking hole from entering the sinking hole, so that the drainage pressure of the sinking hole is effectively reduced.
In some embodiments, the water inlet end of the drain pipe is higher than the floor of the water collection well.
Through the technical means, the water inlet end of the drain pipe is prevented from being in direct contact with the bottom plate of the water collecting well, and dirt deposited on the bottom plate is prevented from directly entering the drain pipe.
In some embodiments, the water inlet end is provided with an orifice grate.
By the technical means, the drain pipe is further prevented from being blocked by dirt in water by the orifice grate.
The beneficial effects of the utility model are as follows:
1. the water collecting well is arranged on the hole site of the sinking hole, so that water in the hole site is effectively collected, and water flooding is avoided; by means of the drain pipe facing the outside of the field in the slope direction, water in the water collecting well flows out of the field along the drain pipe by means of self gravity, pumping and draining are not needed, engineering cost and operation and maintenance cost are saved, and reliability of long-term drainage of a sinking hole is guaranteed.
2. Through setting up the intercepting drain in the periphery of sinking the entrance to a cave, avoid sinking the entrance to a cave of water in the periphery of entrance to a cave, effectively alleviate the drainage pressure of the entrance to a cave of sinking, guaranteed the drainage reliability of the entrance to a cave.
3. By arranging the drain pipe, the ditch is prevented from being excavated in a large range, and engineering investment and land resources are saved.
4. Through the drill way comb of setting up at the water inlet end, prevent that filth from blockking up the drain pipe and influencing the drainage of sinking the entrance to a cave, improved the reliability of tunnel construction period and the waterproof flood measure of operation period.
Drawings
FIG. 1 is a schematic plan view of a gravity flow drainage structure suitable for use in a sink hole.
Fig. 2 is a schematic view of the A-A cross section of fig. 1.
Reference numerals illustrate:
1. sinking the hole; 2. a hole site; 3. a water collection well; 4. a water intercepting ditch; 5. a drain pipe; 6. outside the field; 7. orifice grate.
Detailed Description
In order to make the person skilled in the art better understand the solution of the present utility model, the following describes the solution of the present utility model with reference to specific embodiments.
As shown in fig. 1 and 2, the embodiment is a gravity drainage structure suitable for a sinking hole, a sinking hole 1 is excavated from the ground surface downwards in a field, a tunnel is connected to one side of the sinking hole 1, a rock ridge is arranged on the other side wall, the rock ridge is a surrounding shelter after the sinking hole 1 is excavated, one side of the rock ridge facing away from the sinking hole 1 is connected with a low-lying part outside the field 6, and the low-lying part outside the field 6 can drain freely; a water collecting well 3 is arranged at the joint of the hole site 2 of the sinking hole 1 and a slope of a rock bank, and a drain pipe 5 for draining accumulated water in the water collecting well 3 to the outside 6 of the site is arranged in the rock bank; arrange the whole slope of drain pipe 5 to outside 6, the water inlet end of drain pipe 5 is located sump pit 3, and the delivery port end is located the low-lying position of outside 6 in place, and the water inlet end elevation height of drain pipe 5 is higher than the delivery port end elevation to the highest position of drain pipe 5 is located the water inlet end of drain pipe 5, thereby realize making sump pit 3 in the water retention drain pipe 5 drain to the low-lying position of outside 6 in place under the effect of gravity.
Further, a plurality of mutually communicated intercepting ditches 4 are arranged at the peripheral earth surface of the sinking hole 1, the intercepting ditches 4 are paved to the low-lying position of the outer site 6 along the earth surface, and accumulated water on the earth surface is led to the low-lying position of the outer site 6 through the intercepting ditches 4, so that the accumulated water on the earth surface is prevented from penetrating into the sinking hole 1, and the drainage pressure of the sinking hole 1 is effectively reduced.
Further, the water collecting well 3 not only can collect the water in the tunnel and the tunnel entrance site 2, but also can promote the natural precipitation of dirt in the collected water; the water inlet end of the drain pipe 5 is higher than the bottom plate position of the water collecting well 3, dirt deposited at the bottom plate of the water collecting well 3 is effectively prevented from directly entering the drain pipe 5, the water inlet end of the drain pipe 5 is further provided with an orifice grate 7, and dirt in water is effectively prevented from entering the drain pipe 5 to cause blockage.
The embodiment is a construction method of a gravity flow drainage structure suitable for a sinking hole, comprising the following steps:
firstly, excavating and leveling the ground surface, constructing a water interception ditch 4 at 2 circles of the hole site, and draining water by gravity flow at the whole slope of the water interception ditch 4. The section of the water interception ditch 4 is determined according to the catchment area, and the section of the water interception ditch 4 is not less than 300mm multiplied by 300mm (width multiplied by height).
Step two, excavating a site with a sinking hole 1, constructing a water collecting well 3, and finding a slope 1% -3% of the whole site 2 with the hole towards the water collecting well 3. In order not to influence tunnel traffic entering and exiting the tunnel entrance site 2, the water collecting well 3 is arranged near the side edge of the tunnel entrance site 2. In order to facilitate construction and dredging of the drain pipe 5, the dimensions of the water collection well 3 are not less than 800mm by 1000mm (length by width by height).
And thirdly, arranging a drain pipe 5 in a rock ridge between the hole site 2 and the site outside 6 low-lying place, wherein the whole slope of the drain pipe 5 is toward the site outside 6, and the slope is generally not less than 1%. The number and the diameter of the drain pipes 5 are determined according to the drain capacity requirement, the number of the drain pipes 5 is not less than 2, the drain pipes are reserved for each other, and the diameter of the drain pipes 5 is not less than 50mm. The drain pipe 5 is made of stainless steel or cast iron, and the large-diameter drain pipe 5 can be made of cement pipe. The drain pipe 5 can be drilled firstly and then buried in the hole after penetrating through the rock ridge, and the pipe jacking construction can be adopted for the cement drain pipe 5 with the large diameter.
And step four, the water inlet end of the drain pipe 5 is positioned in the water collecting well 3 of the cave site 2, the water inlet end elevation of the drain pipe 5 is higher than the bottom elevation of the water collecting well 3 by not less than 300mm, the bottom space of the water collecting well 3 is used as a dirt precipitation space, and the water inlet end of the drain pipe 5 is required to be provided with an orifice grate 7 to prevent dirt from blocking the drain pipe 5.
Step five, the site water collecting well 3 needs to be cleaned regularly, and the low-lying place outside the site 6 needs to be inspected regularly, so that the phenomenon that the drain pipe 5 is not smooth due to external factors is prevented.
The utility model relates to a gravity flow drainage structure suitable for a sinking hole, which comprises the following implementation principles:
naturally draining the water outside the sinking hole to a low-lying place outside the field through a water interception ditch on the surface of the ground, and freely draining water through the low-lying place; the water body in the sinking hole is collected in the water collecting well, and the deposited dirt-free water body flows to the low-lying place outside the field by means of self gravity through the drain pipe outside the field, so that the reliable drainage performance of the tunnel in the construction period and the running period is ensured.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (4)
1. Gravity flow drainage structure suitable for subsidence entrance to a cave, excavation has subsidence entrance to a cave (1), its characterized in that in the place:
a water collecting well (3) for collecting water seepage of the site is arranged in a hole site (2) of the sinking hole (1), and a drain pipe (5) for draining accumulated water in the water collecting well (3) to the outside of the site (6) is arranged in the site;
the highest position of the drain pipe (5) is positioned at the water inlet end of the drain pipe (5).
2. A gravity drainage structure adapted to a sink opening as claimed in claim 1 wherein: a water interception ditch (4) is arranged in the field, and the water interception ditch (4) is arranged at the periphery of the sinking hole (1).
3. A gravity drainage structure adapted to a sink opening as claimed in claim 1 wherein: the water inlet end of the water drain pipe (5) is higher than the bottom plate of the water collecting well (3).
4. A gravity drainage structure adapted to a sink opening as claimed in claim 1 wherein: the water inlet end is provided with an orifice grate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321378972.5U CN219653557U (en) | 2023-06-01 | 2023-06-01 | Gravity flow drainage structure suitable for sinking hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321378972.5U CN219653557U (en) | 2023-06-01 | 2023-06-01 | Gravity flow drainage structure suitable for sinking hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219653557U true CN219653557U (en) | 2023-09-08 |
Family
ID=87881284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321378972.5U Active CN219653557U (en) | 2023-06-01 | 2023-06-01 | Gravity flow drainage structure suitable for sinking hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219653557U (en) |
-
2023
- 2023-06-01 CN CN202321378972.5U patent/CN219653557U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208533546U (en) | A kind of series-parallel underground stereo drainage system suitable for side landslide engineering | |
| CN110004935A (en) | A kind of locally deep pit drain measure trench system and construction method | |
| CN112144584A (en) | Self-flowing drainage pressure-limiting anti-floating structure and construction method | |
| CN105625483A (en) | Water pressure control method for underground construction | |
| CN114718101A (en) | Seepage interception structure of tailing pond of seepage interception wall combined dewatering well and construction method thereof | |
| CN112962520A (en) | Hanging plate retaining wall structure of high pile cap of cast-in-place pile and construction method thereof | |
| CN210288405U (en) | Local deep pit water conservancy diversion escape canal system | |
| CN219653557U (en) | Gravity flow drainage structure suitable for sinking hole | |
| CN209555956U (en) | Drop and drainage structure is secretly buried in a kind of drainage | |
| CN111608194A (en) | Foundation pit drainage system | |
| CN214219730U (en) | Water seepage prevention structure for building outer wall | |
| CN110185051A (en) | Deep narrow excavation water discharge method | |
| CN214657275U (en) | Self-flowing drainage pressure-limiting anti-floating structure | |
| CN114575359A (en) | Weak-permeability soil layer slope groundwater disaster treatment method | |
| CN112982319A (en) | Structure and method for conducting diversion, emptying and water taking through dam foundation culvert | |
| CN220352999U (en) | Drainage structure of complex environment waste slag field | |
| CN207176874U (en) | A kind of pavement comprehensive pipe network and drainage system | |
| CN104947699A (en) | Deep foundation pit drainage structure | |
| CN212835459U (en) | Interim drainage system of foundation ditch | |
| CN218643403U (en) | Underground pipeline drainage and seepage water system with drainage and seepage water function | |
| CN218970049U (en) | Deep foundation pit piping drainage device | |
| CN217325443U (en) | High groundwater water level excavation supporting cuts drainage system | |
| CN215165753U (en) | Toe board low reaches foundation ditch ponding positive pump drainage facility | |
| CN219973425U (en) | Deep water intercepting ditch with water seepage function | |
| CN217354474U (en) | Tunnel drainage structures |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |