CN204899978U - Shaft excavation to interface water layer drainage system - Google Patents
Shaft excavation to interface water layer drainage system Download PDFInfo
- Publication number
- CN204899978U CN204899978U CN201520491934.XU CN201520491934U CN204899978U CN 204899978 U CN204899978 U CN 204899978U CN 201520491934 U CN201520491934 U CN 201520491934U CN 204899978 U CN204899978 U CN 204899978U
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- China
- Prior art keywords
- header
- water
- drain header
- shaft excavation
- shaft
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- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 238000009412 basement excavation Methods 0.000 title claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 238000010276 construction Methods 0.000 abstract description 13
- 239000002689 soil Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract description 3
- 239000010865 sewage Substances 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 230000036651 mood Effects 0.000 description 2
- 238000007569 slipcasting Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Landscapes
- Sewage (AREA)
Abstract
The utility model relates to a construction drainage equipment specifically is a shaft excavation to interface water layer drainage system. The problem of drainage behind the water of shaft excavation to interface is solved, a shaft excavation to interface water layer drainage system, includes drain header, drainage tube and header tank, the drain header setting in the shaft and water collection tank connection, the drain header be the rectangle loop, has evenly laid a plurality of trompils on the drain header, it has welding steel pipe, the welding steel pipe last wired hose that is connected with, wired hose and drainage pipe connection to weld in the trompil. This drainage system can avoid water, and the contact produces mud sewage with soil, and fundamentally solves the blowdown problem among the shaft excavation process, improves workman's operation environment.
Description
Technical field
The utility model relates to a kind of construction drainage equipment, and specifically a kind of shaft excavation is to interfacial water layer sewerage system.
Background technology
Underground construction has water to be the problem that boring construction is abstained from most always, because excavation meets water conservancy project people, execution conditions are poor, and clothes is often wet, and health just can be very uncomfortable, and mood is deteriorated naturally, and progress does not increase yet simultaneously.
After shaft excavation to interfacial water, Normal practice is that portion arranges sump in the shaft, allow water nature flow in drainage tube in sump, drain pump in hole, by water pump pump drainage sump internal water accumulation, the drawback of this method is: be often immersed in water at the bottom of vertical shaft, and bearing capacity does not reach requirement; Down-hole civilized construction is poor; Grab soil and want frequent mobile water pump, labor intensive material resources; Catching the dregs come is sposh shape, need dry and could transport outward; Water pump cannot be separated with earth, and water pump is often blocked by earth, often changes pump maintenance; In water, easily there is electric shock accidents in water pump and workman, jeopardizes workman's life security.
Since excavation face is waterproof, so only needs the underground water pervious layer flows out to stop above, just can ensure anhydrous excavation.Stop underground water and have two schemes: one is slip casting; Another kind is drainage.In thin silt, during slip casting, slurries diffusion is uneven, and water plugging effect is bad; In sand-pebble layer, formation void is larger, and after dual slurry water blockoff, just a behind water level can rise, and above water blockoff position, drainage tube flows out, and does not reach water plugging effect.
Summary of the invention
The utility model arranges water problem after solving shaft excavation to interfacial water, provides a kind of shaft excavation to interfacial water layer sewerage system.
The utility model takes following technical scheme: a kind of shaft excavation is to interfacial water layer sewerage system, comprise drain header, drainage tube and header tank, described drain header to be arranged in vertical shaft and to be connected with header tank, drain header is rectangular loop, drain header is evenly laid with some perforates, perforate is welded with welded steel pipe, welded steel pipe is connected with wired hose, wired hose is connected with drainage tube.
Described drain header is arranged on below the minimum EXIT POINT of vertical shaft 20cm place.
The drain header of rectangle puts slope, the gradient 1% to an angle of rectangle, and header tank is laid in the below at the minimum angle place of vertical shaft internal drainage supervisor.
Described header tank is provided with floating-type automatic water pump.
The pipeline turning place of described drain header is by elbow and Flange joint.
Under minimum EXIT POINT, drain header is placed at 20cm place, and drainage tube is connected with drain header road one by one, and current are collected in header tank by main pipeline, discharges in the sedimentation basin arranged on water suction ground by floating-type automatic water pump.
Compared with prior art, the utility model has following beneficial effect:
economic benefit
Vertical shaft submersible and anhydrous operation effect reduce about 50%, 20 days used times are needed to 15.8m back cover according to original construction speed by absolute altitude 24.6m construction, to use when sharing after this drainage system 9 days, save 11 days durations, workman per capita salary 250 yuan, per tour 5 people, totally 2 classes, labour cost saves about 250*5*2*11=27500 unit altogether.
Conventionally construct, badly once every platform pump maintenance once about 800 yuan, add back cover and estimate construction 20 days, after using this drainage system, water pump was once not bad, and maintenance cost saves 10*800=8000 unit in average 2 days for water pump.
After applying this drainage system, artificial and pump maintenance two saves construction cost about 35500 yuan.
social benefit
After applying this drainage system; water in vertical shaft in suction sedimentation basin is clear water; the water entered in municipal storm sewer meets emission request (place is without blowdown interface), has made tremendous contribution to environmental protection, obtains the height accreditation of Kuai Gui company and draining group of Beijing.
application prospect
This drainage system can be avoided water and soil to contact and produce mud and sewage, fundamentally solves the blowdown problem in shaft excavation process, improves workman's operating environment.This drainage system is particularly useful for bedrock surface shaft excavation that is higher or excavation chance multilayer intermediary water and constructs.Along with increasing, the management of the project of city underground engineering are gradually improved, the standard of operating personnel's environment, environmental protection and civilized construction is more and more higher, and this drainage system application prospect is good.
Accompanying drawing explanation
Fig. 1 is the utility model plan view;
Fig. 2 is the utility model part sectioned view;
1-drain header in figure, 2-drainage tube, 3-header tank.
Detailed description of the invention
As shown in Figure 1, 2, a kind of shaft excavation is to interfacial water layer sewerage system, comprise drain header 1, drainage tube 2 and header tank 3, described drain header 1 to be arranged in vertical shaft and to be connected with header tank 3, drain header 1 is rectangular loop, drain header 1 is evenly laid with some perforates, perforate is welded with welded steel pipe, welded steel pipe is connected with wired hose, and wired hose is connected with drainage tube 2.
Described drain header 1 is arranged on below the minimum EXIT POINT of vertical shaft 20cm place.
The drain header 1 of rectangle puts slope, the gradient 1% to an angle of rectangle, and header tank 3 is laid in the below at the minimum angle place of vertical shaft internal drainage supervisor 1.
Described header tank 3 is provided with floating-type automatic water pump.
The pipeline turning place of described drain header 1 is by elbow and Flange joint.
The utility model is particularly applicable in the example in engineering:
Station, east gate, sweet members of a family station ~ Yuyuan Lake interval L1 temporary construction Shaft bank size 5m*7m marked by Beijing Metro No. 16 lines 17, well depth 33.96m.
Shaft excavation is Extra-fine sand to absolute altitude 26.6m stratum, and soil property is loose, and infiltration phenomenon appears in excavation face; Shaft excavation is sandy gravel to absolute altitude 25.1m stratum, and have severely-weathered cementing phenomenon, there is water northwest corner; Shaft excavation is conglomerate to absolute altitude 24.6m stratum, waterproof.Period vertical shaft northwest corner water level observation well water level elevation is basically stable at 24.9m, judge thus from absolute altitude 26.6m to 25.1m be interface, aquifer.
Shaft excavation is to below absolute altitude 25.1m, and excavation face not water outlet, but have open fire stream to flow out in drainage tube, workman under a stream of water face wears raincoat construction, and construction speed is slow, and mood is larger.
Be that the 24.9m position borehole wall lays Φ 108 steel pipe as main drainpipe at vertical shaft absolute altitude, main drainpipe is sized to 5m*7m rectangular loop according to vertical shaft, the every internode of pipeline is by elbow and Flange joint, spacing 0.5m perforate welding Φ 42mm welded steel pipe (Φ 42mm welded steel pipe along length of tube direction point-blank) on main drainpipe, be connected on drainage tube by Φ 50mm wired hose one end, the other end is connected on the welded steel pipe of Φ 42, by drainage in-pipe flow order access Φ 108 main drainpipe.When main drainage pipeline is laid, Beijiao puts slope eastwards, the gradient 1%, below vertical shaft northeast corner landing, lay header tank, and the on-the-spot water glass bucket of diameter 0.57m height 0.9m that adopts is as header tank.
Main pipeline is laid WQ10-65-3.0 type water pump, pump switch case is made floating-type automatic control type controller simultaneously after laying and having connected in header tank, is drained by water pump drainage by floating-type automatically controlled water pump to the sedimentation basin arranged on the ground.
Claims (5)
1. a shaft excavation is to interfacial water layer sewerage system, it is characterized in that: comprise drain header (1), drainage tube (2) and header tank (3), described drain header (1) to be arranged in vertical shaft and to be connected with header tank (3), drain header (1) is rectangular loop, (1) is evenly laid with some perforates to drain header, perforate is welded with welded steel pipe, welded steel pipe is connected with wired hose, wired hose is connected with drainage tube (2).
2. shaft excavation according to claim 1 is to interfacial water layer sewerage system, it is characterized in that: described drain header (1) is arranged on below the minimum EXIT POINT of vertical shaft 20cm place.
3. shaft excavation according to claim 2 is to interfacial water layer sewerage system, it is characterized in that: the drain header (1) of rectangle puts slope, the gradient 1% to an angle of rectangle, and header tank (3) is laid in the below at the minimum angle place of vertical shaft internal drainage supervisor (1).
4. shaft excavation according to claim 3 is to interfacial water layer sewerage system, it is characterized in that: described header tank (3) is provided with floating-type automatic water pump.
5. shaft excavation according to claim 4 is to interfacial water layer sewerage system, it is characterized in that: the pipeline turning place of described drain header (1) is by elbow and Flange joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520491934.XU CN204899978U (en) | 2015-07-09 | 2015-07-09 | Shaft excavation to interface water layer drainage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520491934.XU CN204899978U (en) | 2015-07-09 | 2015-07-09 | Shaft excavation to interface water layer drainage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204899978U true CN204899978U (en) | 2015-12-23 |
Family
ID=54922164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520491934.XU Expired - Fee Related CN204899978U (en) | 2015-07-09 | 2015-07-09 | Shaft excavation to interface water layer drainage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204899978U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630270A (en) * | 2019-10-25 | 2019-12-31 | 中建八局轨道交通建设有限公司 | Drainage system for treating stagnant water between underground excavation shaft layers and construction method thereof |
| TWI708011B (en) * | 2019-03-12 | 2020-10-21 | 鈺尚營造股份有限公司 | Sinking device for construction shaft |
| US10988907B1 (en) | 2020-08-26 | 2021-04-27 | Ician Engineering Contractors Co., Ltd. | Sinking apparatus for sinking concrete shaft |
-
2015
- 2015-07-09 CN CN201520491934.XU patent/CN204899978U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI708011B (en) * | 2019-03-12 | 2020-10-21 | 鈺尚營造股份有限公司 | Sinking device for construction shaft |
| CN110630270A (en) * | 2019-10-25 | 2019-12-31 | 中建八局轨道交通建设有限公司 | Drainage system for treating stagnant water between underground excavation shaft layers and construction method thereof |
| CN110630270B (en) * | 2019-10-25 | 2024-05-10 | 中建八局轨道交通建设有限公司 | Drainage system for treating inter-layer water stagnation of underground excavation vertical shaft and construction method thereof |
| US10988907B1 (en) | 2020-08-26 | 2021-04-27 | Ician Engineering Contractors Co., Ltd. | Sinking apparatus for sinking concrete shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 |