CN1158938A - Drainage and construction method for building subway - Google Patents
Drainage and construction method for building subway Download PDFInfo
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- CN1158938A CN1158938A CN 96109155 CN96109155A CN1158938A CN 1158938 A CN1158938 A CN 1158938A CN 96109155 CN96109155 CN 96109155 CN 96109155 A CN96109155 A CN 96109155A CN 1158938 A CN1158938 A CN 1158938A
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Abstract
Near the operation area of subway tunnel, are set pipe-connected water-reducing wells and backflow wells with pipe depth to shallow and deep water-bearing beds, and water in shallow water-bearing bed is pumped by the water pumps from water-reducing wells and backflows via the backflow wells to deep water-bearing bed. In addition, infiltrating sand wells are set near water-reducing wells and backflow wells and filtering nets are wound around water pipes. The present invention results in no-water construction of subway tunnel, protects water source and save water and prevents subsided layer near the subway tunnel.
Description
The present invention relates to the construction of underground tunnel method, relate in particular to the underground railway drainage and construction method.
The urban subway construction all is to carry out below groundwater table, and it is vital solving draining in work progress, and draining thoroughly could be accelerated speed of application, and construction quality is improved.Known constructing metro tunnel drainage has bright row's method and curtain grouting water blockage method, promptly digging large open well with bright row's method discharges underground water outside the tunnel with water pump, and the curtain grouting water blockage method is at the outside, tunnel grouting for water blocking, underground water is kept off outside the tunnel, this all draining completely of two kinds of methods, always there are the part current to return in the constructing tunnel scene, effect is poorer in powder fine sand stratum, the job site often is among the underground water encirclement, increase difficulty of construction, and bright draining also can be taken away a large amount of powder fine sands, underground shallow part is moisture near finding time easily, causes ground subsidence, makes simultaneously and descends water-white to run off in vain in large quantities, and curtain is irritated pollution that the oar water blockage method can cause groundwater resources and cost height.
The purpose of this invention is to provide the anhydrous construction of a kind of assurance subway tunnel scope of operation, the protection water resource is not polluted and is saved underground water, can contain that surface of stratum subsides simultaneously, and the lower subway tunnel drainage and construction method of construction cost.
In order to achieve the above object, the present invention's employing is extracted the water in underground shallow part aquifer, construction operation district out with water pump after, recharge again in the aquifer, underground deep, or recharge again in the underground shallow part aquifer after construction is finished, near drawing water a little, be provided with simultaneously and dredge the moisture self-seepage sand drain of underground shallow part.The present invention includes following steps:
1. outside the subway tunnel, a plurality of apertures are set greater than 0.4 meter at interval vertically apart from 10-30 rice, subway tunnel center line both sides, the water pipe diameter reaches the precipitation well in underground shallow part aquifer deeply greater than 0.2 meter.
2. a plurality of apertures are set greater than 0.4 meter in precipitation well spaced around, the water pipe diameter is greater than the recharge well in aquifer, 0.2 meter dark and underground deep.
3. between precipitation well and recharge well, be communicated with waterway pipe.
4. in the water pipe of precipitation well, suction pump is set, in the water pipe of recharge well, is provided with back and raises pump.
5. a plurality of self-seepage sand drains are set around precipitation well and recharge well.
6. at the precipitation well with recharge well head setting operation hole.
When the subway constructing tunnel, suction pump from the precipitation well with after the moisture extraction of underground shallow part, flow into recharge well by the waterway pipe that is arranged on below the road surface, enter aquifer, underground deep, because moisture being drawn out of of underground shallow part at construction operation face place, groundwater table decreasing makes the construction operation face anhydrous, is convenient to construction.And the water of extracting out is recharged to aquifer, underground deep, then reducing ground falls deeply and has realized the shallow deep irrigation of taking out, after the segmentation scope of operation is finished construction, when excavating new working face forward, precipitation and recharge synchronously and carry out, the incremental construction of finishing whole subway tunnel, in the process that precipitation recharges, also can be when the new excavation scope of operation with the underground shallow part of extracting out moisture directly recharging near the precipitation well of finishing the scope of operation of construction back, directly irritate to the underground shallow part intake area, take out the back before the realization and irritate, strengthen the precipitation well simultaneously and recharge wellhole and water pipe between the thickness of filtration beds, select appropriate filter materials, and screen pack is set outside water pipe, reduce the sand content in drawing water, it is moisture that the self-seepage sand drain that is provided with around precipitation well and recharge well is then dredged underground shallow part, quickens precipitation.
Because the present invention has adopted shallow the taking out of underground water to take out the job practices that irritate the back before deep irrigation reaches; realized the anhydrous construction of the constructing metro tunnel scope of operation; protected water resource not pollute simultaneously; save groundwater resources; and prevent that ground surface from subsiding; subway tunnel surrounding buildings thing is not produced big influence, reduced the expense of construction simultaneously, and good economic benefit is arranged.
Below in conjunction with drawings and Examples in detail the present invention is described in detail.
Fig. 1 is embodiment of the invention precipitation well, recharge well and the layout schematic diagram that oozes sand drain.
Fig. 2 is that Fig. 1 is along the A-A sectional drawing.
Can find out from Fig. 1 and Fig. 2, at first, 15 meters in distance subway tunnel center line 3 both sides, in axial direction the interval respectively is provided with row's precipitation well 1 for 10 meters, secondly being provided with one at 10 meters, the distance precipitation well 1 center line outside with precipitation well 1 parallel direction arranges and is spaced apart 10 meters recharge well 4, be communicated with by metallic conduit 5 between precipitation well 1 and the recharge well 4, precipitation well 1 aperture is a 0.6-0.8 rice, 0.3 meter of water pipe 7 diameter, filtrate 8 is filled in its gap, 33 meters of hole depths, 32 meters of water pipe 7 length enter the underground shallow part aquifer.Recharge well 4 aperture 0.6-0.8 rice, 0.3 meter of water pipe 11 diameter, the under-filled filtrate 8 in its gap, 82 meters of hole depths, 81 meters of water pipe 11 length, enter aquifer, underground deep 15, in water pipe 7 bottoms of precipitation well 1, suction pump 9 is set, the water pipe 7 outer 60-80 order nylon screen packs 13 that twine are provided with back in water pipe 11 bottoms of recharge well 4 and raise pump 14, the water pipe 11 outer 60-80 order nylon screen packs 13 that twine, secondly in the interval of precipitation well 1 and two row's precipitation be provided with vertically between advancing and a plurality ofly be spaced apart 10 meters, be 24 meters self-seepage sand drain 2 deeply, for easy to operate, in precipitation well and recharge well and well head setting operation hole 6, handle hole is high 1.3 meters, 0.9 meter of top diameter, base diameter is 1.5 meters, conduit pipeline and valve are installed in the hole, and power circuit also connects suction pump 9 by this hole and returns and raise pump 14, and cast iron cover 10 is stamped in handle hole 6 apertures.
The present invention also is suitable for the underground construction in other tunnel except that the construction that is suitable for subway tunnel.
Claims (1)
1. underground railway engineering drainage job practices is characterized in that: after the water in underground shallow part aquifer, construction operation district is extracted out, recharge in the aquifer, underground deep again or recharge in the underground shallow part aquifer after construction is finished again, may further comprise the steps:
(1) outside subway tunnel, a plurality of apertures are set greater than 0.4 meter at interval vertically apart from 10-30 rice, subway tunnel center line both sides, water pipe (7) diameter reaches the precipitation well (1) in underground shallow part aquifer (12) deeply greater than 0.2 meter,
(2) a plurality of apertures are set greater than 0.4 meter in precipitation well (1) spaced around, water pipe (7) diameter reaches the recharge well (4) in aquifer, underground deep (15) deeply greater than 0.2 meter,
(3) pipeline (5) connection by water between precipitation well and recharge well,
(4) suction pump (9) is set in precipitation well (1), in recharge well (4), is provided with back and raises pump (14),
(5) at precipitation well (1) and recharge well (4) a plurality of self-seepage sand drains (2) are set on every side,
(6) in precipitation well (1) and recharge well (4) well head setting operation hole (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96109155 CN1158938A (en) | 1996-08-02 | 1996-08-02 | Drainage and construction method for building subway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96109155 CN1158938A (en) | 1996-08-02 | 1996-08-02 | Drainage and construction method for building subway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1158938A true CN1158938A (en) | 1997-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96109155 Pending CN1158938A (en) | 1996-08-02 | 1996-08-02 | Drainage and construction method for building subway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1158938A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100410492C (en) * | 2005-11-29 | 2008-08-13 | 长安大学 | Centralized water discharge apparatus and method for tunnelling |
| CN101285397B (en) * | 2008-05-29 | 2010-06-09 | 中交第二公路勘察设计研究院有限公司 | Submarine tunnel transverse water collecting tank |
| CN101294499B (en) * | 2007-04-25 | 2011-05-04 | 张庆玉 | Double-function vacuum apparatus for extracting mash gas and lifting groundwater for coal mine safety |
| CN102400713A (en) * | 2011-10-24 | 2012-04-04 | 广东华隧建设股份有限公司 | Method for auxiliary construction of water falling in tunnel by communicated channel |
| CN102094677B (en) * | 2009-12-11 | 2012-10-24 | 中铁十一局集团有限公司 | Emergency equipment for adverse-slope tracking water drainage and silt discharging in tunnel construction |
| CN102787611A (en) * | 2012-08-10 | 2012-11-21 | 中国二冶集团有限公司 | Precipitation method for excavation of foundation pit at collapsible loess region |
| CN103089280A (en) * | 2011-11-01 | 2013-05-08 | 北京市政建设集团有限责任公司 | Grouting water sealing and reinforcement construction process capable of realizing draining and plugging combined effect for underground water in tunnel |
| CN103089301A (en) * | 2011-11-01 | 2013-05-08 | 北京市政建设集团有限责任公司 | Grouting reinforcement construction process capable of realizing draining and plugging combined effect for underground water in vertical shaft |
| CN103821525A (en) * | 2014-03-10 | 2014-05-28 | 山西太钢不锈钢股份有限公司 | Cable tunnel rapid construction method in high water level geological condition |
| CN103939142A (en) * | 2014-03-31 | 2014-07-23 | 中铁工程设计咨询集团有限公司 | Tunnel drainage system with controllable water pressure and water pressure controlling device thereof |
-
1996
- 1996-08-02 CN CN 96109155 patent/CN1158938A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100410492C (en) * | 2005-11-29 | 2008-08-13 | 长安大学 | Centralized water discharge apparatus and method for tunnelling |
| CN101294499B (en) * | 2007-04-25 | 2011-05-04 | 张庆玉 | Double-function vacuum apparatus for extracting mash gas and lifting groundwater for coal mine safety |
| CN101285397B (en) * | 2008-05-29 | 2010-06-09 | 中交第二公路勘察设计研究院有限公司 | Submarine tunnel transverse water collecting tank |
| CN102094677B (en) * | 2009-12-11 | 2012-10-24 | 中铁十一局集团有限公司 | Emergency equipment for adverse-slope tracking water drainage and silt discharging in tunnel construction |
| CN102400713A (en) * | 2011-10-24 | 2012-04-04 | 广东华隧建设股份有限公司 | Method for auxiliary construction of water falling in tunnel by communicated channel |
| CN103089280A (en) * | 2011-11-01 | 2013-05-08 | 北京市政建设集团有限责任公司 | Grouting water sealing and reinforcement construction process capable of realizing draining and plugging combined effect for underground water in tunnel |
| CN103089301A (en) * | 2011-11-01 | 2013-05-08 | 北京市政建设集团有限责任公司 | Grouting reinforcement construction process capable of realizing draining and plugging combined effect for underground water in vertical shaft |
| CN103089301B (en) * | 2011-11-01 | 2015-02-04 | 北京市政建设集团有限责任公司 | Grouting reinforcement construction process capable of realizing draining and plugging combined effect for underground water in vertical shaft |
| CN102787611A (en) * | 2012-08-10 | 2012-11-21 | 中国二冶集团有限公司 | Precipitation method for excavation of foundation pit at collapsible loess region |
| CN103821525A (en) * | 2014-03-10 | 2014-05-28 | 山西太钢不锈钢股份有限公司 | Cable tunnel rapid construction method in high water level geological condition |
| CN103821525B (en) * | 2014-03-10 | 2015-10-28 | 山西太钢不锈钢股份有限公司 | Cable tunnel rapid constructing method under high water level geological conditions |
| CN103939142A (en) * | 2014-03-31 | 2014-07-23 | 中铁工程设计咨询集团有限公司 | Tunnel drainage system with controllable water pressure and water pressure controlling device thereof |
| CN103939142B (en) * | 2014-03-31 | 2016-01-20 | 中铁工程设计咨询集团有限公司 | Hydraulic pressure controllable type tunnel drainage system and hydraulic control device thereof |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |