CN104179513A - Construction method for thermal insulation water outlet outside cold-region tunnel - Google Patents
Construction method for thermal insulation water outlet outside cold-region tunnel Download PDFInfo
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- CN104179513A CN104179513A CN201410395898.7A CN201410395898A CN104179513A CN 104179513 A CN104179513 A CN 104179513A CN 201410395898 A CN201410395898 A CN 201410395898A CN 104179513 A CN104179513 A CN 104179513A
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Abstract
The invention relates to the field of engineering construction, in particular to a construction method for a thermal insulation water outlet outside a cold-region tunnel. When the construction method is used for constructing at the thermal insulation water outlet outside the cold-region tunnel, a method of layered water drainage at the water outlets of water drainage pipes is adopted, so that after the first layer of first water drainage pipe openings is frozen, the water level is raised through a rubble water storage bin arranged at the rear part and the water is drained through a second water drainage pipe on an upper layer; after an upper layer pipe opening is frozen, the certain temperature of the water per se can facilitate the melting and dredging of the first water drainage pipe opening at the bottom slowly; when flowing continuously, the water is prevented from being frozen; besides, as auxiliary thermal insulation measures such as asbestos and coal slag are adopted for the outlets of the water drainage pipes, the water in a slope protection range is uneasy to freeze; as the water outlets of the water drainage pipes expose from the ground surface in a small range, the temperature of the water per se is high enough for ensuring that the water outlet pipe openings are prevented from being frozen; besides, as an electric heating device is arranged below the first water drainage pipe, electric heating thermal protection measures are adopted for ensuring that the water drainage effect of the water outlets is kept normal in the case of extreme climate.
Description
Technical field
The present invention relates to Construction Technology field, what be specifically related to is the construction method of heat-insulating water outlet outside a kind of tunnel in cold area hole.
Background technology
In prior art, outside tunnel in cold area hole, heat-insulating water outlet is the important component part of tunnel drainage, also be the important measures that ensure workmanship " project of vital and lasting importance ", outside hole, the quality of the construction quality of drainage system is directly connected to tunnel internal drainage and on the impact after tunnel operation, hole internal water accumulation can not be discharged smoothly and will directly be affected the frost heave in tunnel, direct relation constructing tunnel quality and operation security simultaneously.The common practice of existing tunnel in cold area heat-insulating water outlet design is the mode of taking nature to flow out, and the position that requires delivery port to design should be at leeward area without shade, but heat-insulating water outlet does not take into full account heating and the thermometric measure of delivery port, do not consider that delivery port takes to fall slope draining and the methods such as heat insulating material are assisted in application simultaneously simultaneously.
Summary of the invention
In order to overcome defect of the prior art, the construction method of heat-insulating water outlet outside a kind of tunnel in cold area provided by the invention hole, first consider the mode of delivery port layering draining, after drain pipe port first floor freezes, water is raised water level by the slabstone water storehouse at rear, discharge by upper strata gutter again, after the upper strata mouth of pipe freezes, water body self has certain temperature will be slowly the drain pipe port of below to be melted to dredging, water is lasting mobile in the situation that, will can be not frozen, and adopt various as asbestos at delivery port, the auxiliary Insulation such as cinder, water in slope protection scope should not freeze, delivery port very among a small circle in crop out, be enough to ensure that by the temperature of water body self mouth of pipe is not frozen, the another heat tape that arranges below gutter, once run into extreme climate, can take electrically heated Insulation, thereby guarantee the heat insulation effect of delivery port.
The present invention is achieved through the following technical solutions: the construction method of heat-insulating water outlet outside a kind of tunnel in cold area hole, comprises the following steps:
Step 1: determine position, the mouth of a river, at described delivery port position excavation delivery port foundation trench, described foundation trench first adopts Base with Sand Gravel Cushion, then concreting;
Step 2: apply delivery port headwall, described headwall adopts mortar flag stone to apply, described headwall middle part bury underground steel concrete pipe culvert as reserved second row water pipe hole and with outside hole buried section be connected and cause described delivery port headwall place;
Step 3: the draining that applies described delivery port and described headwall position is domatic, and arrange in both sides splayed aileron do gear protect, it is domatic that the domatic below backfill of described draining ragstone layer forms slabstone, below described slabstone is domatic, adopt mortar flag stone as basis and make barricade, above described slabstone is domatic, first laying one deck geotextiles and re-lay one deck rock wool and do overcoat;
Step 4: horizontal wall inscription is set at described domatic barricade water outlet end, described horizontal wall inscription is provided with the gradient, and at described domatic barricade water outlet end, horizontal wall inscription place is set and buries two-layer first row water pipe underground, the interlamellar spacing of described first row water pipe and tube pitch are laid according to a determining deviation, at first row water pipe every described, two electrothermal tubes are set outward, temperature transducer is installed in described electrothermal tube top, described electrothermal tube is arranged in both sides closely connected with described first row water pipe, described first row water pipe below, and described electrothermal tube is always domatic along below to be extended to drainage culvert and stretch out certain distance;
Step 5: in described step 4, described first row water pipe surrounding adopts concrete filling fixing, described first row water pipe top is laid one deck geotextiles and is re-layed one deck rock wool, described rock wool top backfill cinder is to described end wall surface, above described cinder, apply mortar rubble masonry pavement, described first row water pipe passes described bank protection face, guarantees that water can flow out naturally from described first row water pipe, and described first row water pipe water outlet is provided with weathering;
Step 6: apply bituminous coating on described mortar rubble masonry pavement surface.
Further, the Base with Sand Gravel Cushion in described step 1 is 15cm, and described concreting thickness is 10cm, and model is C15.
Further, the external diameter of second row water pipe described in described step 2 is φ 40cm, and the internal diameter of described steel concrete pipe culvert is φ 40cm, and wall thickness is 8cm.
Further, the domatic ratio of slope of draining described in described step 3 is 1:1.5.
Further, the horizontal wall inscription ratio of slope of the water side of domatic barricade described in described step 4 is 8%.
Further, the diameter of first row water pipe described in described step 4 is φ 20cm, and material is UPVC.
Further, in described step 4, the scheme of burying underground of described first row water pipe is 7 of lower floors, 6, upper strata, and interval laying and interlamellar spacing and tube pitch are 60cm.
Further, the pvc pipe that described in described step 4, electrothermal tube diameter is 2cm or diameter are the steel pipe of φ 32cm.
Further, the bank protection ratio of slope described in described step 5 is 1:1.5, and described mortar flag stone thickness is 30cm, and the draining ratio of slope outside described first row water pipe delivery port is 10%.
Further, in described step 4, at described first row water pipe delivery port buried one section of cable to hole, on described cable, be embedded with temperature transducer.
Compared with prior art, superior effect is: the present invention heat-insulating water outlet when construction outside tunnel in cold area hole, owing to adopting the mode of delivery port layering draining, after drain pipe port first floor freezes, water is raised water level by the slabstone water storehouse at rear, discharge by upper strata gutter again, after the upper strata mouth of pipe freezes, water body self has certain temperature will be slowly the drain pipe port of below to be melted to dredging, water is lasting mobile in the situation that, will can be not frozen, and adopt various as asbestos at delivery port, the auxiliary Insulation such as cinder, water in slope protection scope should not freeze, delivery port very among a small circle in crop out, be enough to ensure that by the temperature of water body self mouth of pipe is not frozen, the another heat tape that arranges below gutter, run into extreme climate, can take electrically heated Insulation, thereby guarantee the normal drainage effect of delivery port.
Brief description of the drawings
Fig. 1 is flow chart of the present invention;
Fig. 2 is structural plan figure of the present invention;
Fig. 3 is structure elevation of the present invention;
Fig. 4 is structure I-I sectional drawing of the present invention;
Fig. 5 is second row water pipe scheme of installation in the present invention;
Fig. 6 is first row water pipe scheme of installation in the present invention.
Reference numeral is as follows:
1-headwall, 2-Eight characters aileron, 3-bank protection, 4-aileron termination, 5-mortar flag stone, 6-first row water pipe, 7-draining is domatic, the dry chip stone of 8-, 9-second row water pipe pedestal, 10-second row water pipe, 11-backfill covers, 12-electrothermal tube, 13-temperature transducer, 14-test cable, 15-heat tape, 16-manhole, 17-heat insulating material, 18-sensor prap, 19-cat ladder.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the invention is described in further detail.
Below in conjunction with Figure of description 1-6, illustrate the present invention, the invention provides the construction method of heat-insulating water outlet outside a kind of tunnel in cold area hole, as shown in Figure 1, specifically apply like this, first apply out outlet, hole manhole 16, in manhole 16, establish cat ladder 19, bury delivery port steel concrete pipe culvert underground, pipe culvert pedestal adopts No. 15 cement concretes to build, and determines position, the mouth of a river, and excavation applies delivery port foundation trench, described delivery port foundation trench first applies 15cm Base with Sand Gravel Cushion, then builds 10cm15 cement concrete, then apply delivery port headwall 1, headwall 1 adopts mortar flag stone 5 to apply, the reserved steel concrete pipe culvert of burying second row water pipe hole 10 underground in headwall 1 middle part, be communicated with buried section of delivery port manhole 16 pipe culverts outside hole, pipe culvert delivery port is buried one section of test cable 14 to hole, is embedded with temperature transducer 13 on test cable 14, as shown in Figure 3, headwall 1 applies pre-buried centre in process and is provided with penetration pipe and the sensor prap 18 of heat tape 15, and described sensor prap 18 is connected with power supply and temperature transducer 13, for the later stage installs electric device and prepares, delivery port link wall displacement arranges draining domatic 7, draining domatic 7 adopts and grouts, both sides adopt Eight characters aileron 2 to do gear and protect, described Eight characters aileron 2 adopts mortar flag stone to apply, aileron termination adopts retaining wall shutoff, aileron termination 4 barricades apply the UPVC pipe of pre-buried two-layer internal diameter 20cm in process and lay, interlamellar spacing and tube pitch are 60cm, interior employing dry-laid rubble 8 backfills of described Eight characters aileron 2, the domatic upper one deck geotextiles of first laying of slabstone re-lays one deck rock wool and makees mask, apply the outer water outlet horizontal wall inscription that applies in Eight characters aileron termination 4, the UPVC pipe that the two-layer internal diameter of burying underground is 20cm uses as first row water pipe, the ratio of slope of burying underground is wherein 8%, the gutter reserved with aileron termination is connected, as shown in Figure 6, every UPVC first row water pipe 6 is outside equipped with two electrothermal tubes 12, in electrothermal tube 12, be provided with heat tape 15, temperature transducer 13 and test cable 14 are installed in described every UPVC first row water pipe 6 tops, described electrothermal tube 12 is arranged in first row water pipe 6 both sides, below closely connected with described first row water pipe 6, described electrothermal tube 12 is always from the domatic certain distance that stretches out extending in drainage culvert in exposure opening's edge below, as shown in Figure 5, described second row water pipe 10 surroundings adopt concrete filling fixing, and the external diameter in the described second row water pipe hole 10 wherein arranging is φ 40cm, and the internal diameter of described steel concrete pipe culvert is φ 40cm, and wall thickness is 8cm, as shown in Figure 3, above first row water pipe 6, lay one deck geotextiles and re-lay the protection of one deck rock wool, above rock wool, backfill covers cinder to headwall plane, above cinder, carry out mortar rubble masonry pavement 3, described first row water pipe 6 passes domatic, guarantee that water flows out naturally from the delivery port of described first row water pipe 6, described delivery port is provided with the concrete weathering 7 that the thick 25cm ratio of slope of wide 1m is 10% outward, the domatic brushing bituminous coating of mortar flag stone, prevents that Exposure to Sunlight and rainwater from soaking, and causes domatic weathering to destroy, and the preferred internal diameter in described second row water pipe hole 10 wherein arranging is the pipe of φ 40cm, and the internal diameter of described steel concrete pipe culvert is φ 40cm, and wall thickness is 8cm, wherein also be provided with power-line terminal and supply electric position as reserved wiring, build supplying electricity and power distribution facility nearby, power distribution cabinet etc. is set, while needs according to the later stage, supply electrical heating, domatic 7 ratios of slope of wherein said draining are 1:1.5, the horizontal wall inscription ratio of slope of described domatic barricade water side is 8%, and the preferred diameter of described first row water pipe 6 is φ 20cm, the specification that material is UPVC, burying two-layer described first row water pipe 6 underground, to bury scheme underground be 7 of lower floors, 6, upper strata, lay at interval, and interlamellar spacing is 60cm, it is the steel pipe of φ 32cm that described electrothermal tube 12 is preferably pvc pipe or the diameter that diameter is 20cm, described mortar flag stone thickness is 30cm, drainage grade outside described first row water pipe 6 delivery ports is 10%, when outside tunnel in cold area hole, heat-insulating water outlet is constructed, owing to adopting the mode of delivery port layering draining, after drain pipe port first floor freezes, water is raised water level by the slabstone water storehouse at rear, discharge by upper strata second row water pipe 10 again, after the upper strata mouth of pipe freezes, water body self has certain temperature will be slowly first row water pipe 6 delivery ports of below to be melted to dredging, water is lasting mobile in the situation that, will can be not frozen, and adopt various as asbestos at delivery port, the auxiliary Insulation such as cinder, water in slope protection scope should not freeze, delivery port very among a small circle in crop out, be enough to ensure that by the temperature of water body self mouth of pipe is not frozen, the another heat tape that arranges below gutter, run into extreme climate, can take electrically heated Insulation, thereby guarantee the heat insulation effect of delivery port.
The present invention is not limited to above-mentioned embodiment, and in the situation that not deviating from flesh and blood of the present invention, any distortion, improvement, the replacement that it may occur to persons skilled in the art that all fall into scope of the present invention.
Claims (10)
1. a construction method for heat-insulating water outlet outside tunnel in cold area hole, is characterized in that, comprises the following steps:
Step 1: determine position, the mouth of a river, at described delivery port position excavation delivery port foundation trench, described foundation trench first adopts Base with Sand Gravel Cushion, then concreting;
Step 2: apply delivery port headwall, described headwall adopts mortar flag stone to apply, described headwall middle part bury underground steel concrete pipe culvert as reserved second row water pipe hole and with outside hole buried section be connected and cause described delivery port headwall place;
Step 3: the draining that applies described delivery port and described headwall position is domatic, and arrange in both sides splayed aileron do gear protect, it is domatic that the domatic below backfill of described draining ragstone layer forms slabstone, below described slabstone is domatic, adopt mortar flag stone as basis and make barricade, above described slabstone is domatic, first laying one deck geotextiles and re-lay one deck rock wool and do overcoat;
Step 4: horizontal wall inscription is set at described domatic barricade water outlet end, described horizontal wall inscription is provided with the gradient, and at described domatic barricade water outlet end, horizontal wall inscription place is set and buries two-layer first row water pipe underground, the interlamellar spacing of described first row water pipe and tube pitch are laid according to a determining deviation, at first row water pipe every described, two electrothermal tubes are set outward, temperature transducer is installed in described electrothermal tube top, described electrothermal tube is arranged in both sides closely connected with described first row water pipe, described first row water pipe below, and described electrothermal tube is always domatic along below to be extended to drainage culvert and stretch out certain distance;
Step 5: in described step 4, described first row water pipe surrounding adopts concrete filling fixing, described first row water pipe top is laid one deck geotextiles and is re-layed one deck rock wool, described rock wool top backfill cinder is to described end wall surface, above described cinder, apply mortar rubble masonry pavement, described first row water pipe passes described bank protection face, guarantees that water can flow out naturally from described first row water pipe, and described first row water pipe water outlet is provided with weathering;
Step 6: apply bituminous coating on described mortar rubble masonry pavement surface.
2. the construction method of heat-insulating water outlet outside tunnel in cold area hole according to claim 1, is characterized in that, the Base with Sand Gravel Cushion in described step 1 is 15cm, and described concreting thickness is 10cm, and model is C15.
3. the construction method of heat-insulating water outlet outside tunnel in cold area hole according to claim 1, is characterized in that, the external diameter of second row water pipe described in described step 2 is φ 40cm, and the internal diameter of described steel concrete pipe culvert is φ 40cm, and wall thickness is 8cm.
4. the construction method of heat-insulating water outlet outside tunnel in cold area hole according to claim 1, is characterized in that, the domatic ratio of slope of draining described in described step 3 is 1:1.5.
5. the construction method of heat-insulating water outlet outside tunnel in cold area hole according to claim 1, is characterized in that, the horizontal wall inscription ratio of slope of the water side of domatic barricade described in described step 4 is 8%.
6. the construction method of heat-insulating water outlet outside tunnel in cold area hole according to claim 1, is characterized in that, the diameter of first row water pipe described in described step 4 is φ 20cm, and material is UPVC.
7. the construction method of heat-insulating water outlet outside tunnel in cold area hole according to claim 1, is characterized in that, in described step 4, the scheme of burying underground of described first row water pipe is 7 of lower floors, 6, upper strata, and interval laying and interlamellar spacing and tube pitch are 60cm.
8. the construction method of heat-insulating water outlet outside tunnel in cold area hole according to claim 1, is characterized in that, the pvc pipe that described in described step 4, electrothermal tube diameter is 2cm or diameter are the steel pipe of φ 32cm.
9. the construction method of heat-insulating water outlet outside tunnel in cold area hole according to claim 1, it is characterized in that, the bank protection ratio of slope described in described step 5 is 1:1.5, and described mortar flag stone thickness is 30cm, and the draining ratio of slope outside described first row water pipe delivery port is 10%.
10. the construction method of heat-insulating water outlet outside tunnel in cold area hole according to claim 1, is characterized in that, in described step 4, at described first row water pipe delivery port buried one section of cable to hole, on described cable, is embedded with temperature transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410395898.7A CN104179513B (en) | 2014-08-13 | 2014-08-13 | A kind of construction method of tunnel in cold area hole external thermal insulation outlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410395898.7A CN104179513B (en) | 2014-08-13 | 2014-08-13 | A kind of construction method of tunnel in cold area hole external thermal insulation outlet |
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| Publication Number | Publication Date |
|---|---|
| CN104179513A true CN104179513A (en) | 2014-12-03 |
| CN104179513B CN104179513B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410395898.7A Expired - Fee Related CN104179513B (en) | 2014-08-13 | 2014-08-13 | A kind of construction method of tunnel in cold area hole external thermal insulation outlet |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948832A (en) * | 2017-03-14 | 2017-07-14 | 中铁隧道集团二处有限公司 | A kind of tunnel in cold regions heat-insulating water outlet construction method |
| CN109404011A (en) * | 2018-09-10 | 2019-03-01 | 北京隧盾市政建设有限公司 | A kind of heat insulating construction method of pipe curtain slip casting tunnel water outlet |
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| KR20030088398A (en) * | 2003-10-14 | 2003-11-19 | 건양씨앤이 주식회사 | Underway Tunneling Methods of arch typed Triangle Elementary pipe-roof |
| CN101614129A (en) * | 2009-08-10 | 2009-12-30 | 招商局重庆交通科研设计院有限公司 | The job practices of tunnel waterproof and water drainage system |
| JP2010101062A (en) * | 2008-10-23 | 2010-05-06 | Ohbayashi Corp | Drainage structure of underground water, and construction method for tunnel equipped with the drainage structure |
| CN101985882A (en) * | 2010-08-10 | 2011-03-16 | 中铁二十局集团有限公司 | Construction method of rigid primary support of mould-building concrete of plateau permafrost tunnel |
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2014
- 2014-08-13 CN CN201410395898.7A patent/CN104179513B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030088398A (en) * | 2003-10-14 | 2003-11-19 | 건양씨앤이 주식회사 | Underway Tunneling Methods of arch typed Triangle Elementary pipe-roof |
| JP2010101062A (en) * | 2008-10-23 | 2010-05-06 | Ohbayashi Corp | Drainage structure of underground water, and construction method for tunnel equipped with the drainage structure |
| CN101614129A (en) * | 2009-08-10 | 2009-12-30 | 招商局重庆交通科研设计院有限公司 | The job practices of tunnel waterproof and water drainage system |
| CN101985882A (en) * | 2010-08-10 | 2011-03-16 | 中铁二十局集团有限公司 | Construction method of rigid primary support of mould-building concrete of plateau permafrost tunnel |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948832A (en) * | 2017-03-14 | 2017-07-14 | 中铁隧道集团二处有限公司 | A kind of tunnel in cold regions heat-insulating water outlet construction method |
| CN106948832B (en) * | 2017-03-14 | 2019-03-29 | 中铁隧道集团二处有限公司 | A kind of tunnel in cold regions heat-insulating water outlet construction method |
| CN109404011A (en) * | 2018-09-10 | 2019-03-01 | 北京隧盾市政建设有限公司 | A kind of heat insulating construction method of pipe curtain slip casting tunnel water outlet |
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| CN104179513B (en) | 2016-08-17 |
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Inventor after: Chen Jun Inventor after: Liu Juncheng Inventor after: Qin Ling Inventor after: Zhang Zhen Inventor after: Tang Xu Inventor after: Yue Cheng Inventor after: Yang Chunbo Inventor after: Lai Jinxing Inventor before: Chen Jun Inventor before: Liu Juncheng Inventor before: Qin Ling Inventor before: Zhang Zhen Inventor before: Tang Xu Inventor before: Yue Cheng Inventor before: Yang Chunbo |
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Granted publication date: 20160817 Termination date: 20210813 |