CN206972235U - A kind of structure for melting huge talus loose media bottom frost zone - Google Patents
A kind of structure for melting huge talus loose media bottom frost zone Download PDFInfo
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- CN206972235U CN206972235U CN201720256441.7U CN201720256441U CN206972235U CN 206972235 U CN206972235 U CN 206972235U CN 201720256441 U CN201720256441 U CN 201720256441U CN 206972235 U CN206972235 U CN 206972235U
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- ice
- melt
- hole
- talus
- melting
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Abstract
The utility model discloses a kind of structure for melting huge talus loose media bottom frost zone, including ice-melt hole, waterwall, thawing pond, recovery intercepting ditch, lime water storage reaction tank and water pump；Ice-melt hole is evenly distributed in ice-melt area as quincunx, the bottom hole in ice-melt hole is located at the downside of frost zone top surface, ice-melt is provided with pillar in hole, waterwall is arranged on melt zone periphery, waterwall, which surrounds melt zone, melts pond, recovery intercepting ditch one end is connected to the Study on Rock bottom ice-melt water catchment other end and is connected to lime water storage reaction tank, water in lime water storage reaction tank is extracted into by water pump to be melted in pond, then penetrated into by melting pond in ice-melt hole, the bottom and ice sheet top surface for finally reaching ice-melt hole carry out heat exchange, water after turning cold is pooled to lime water storage reaction tank by reclaiming intercepting ditch；The utility model eliminates in talus frost zone for many years, and thaw collapse may potential safety hazard caused by and railway operation stable to talus after reservoir filling immersion.
Description
Technical field
A kind of structure for freezing melting layer for many years is the utility model is related to, is specifically a kind of melt under huge talus loose media
The structure of portion's frost zone.
Background technology
The scale of great Qian Shi ridges tunnel entrance talus is very big, and talus scope includes the almost whole massif of tunnel entrance,
26 °~38 ° of natural grade, talus thickness are 26.3~48.4 meters, and body extends to korneforos near the mountain for Study on Rock bottom.Talus mainly by
Block stone composition not of uniform size, rock matter are early Sinian system fishing platform group (Zld) quartzy sandstone, and block stone diameter is more in 0.5m~1.5m
Between, big 2~3m of person, block footpath is overall more homogeneous, and in loose aerial construction, basic non-binding, no shiver stone and fine grained soil fill
Fill out, assortment, the voidage of talus reaches 40%-50%.
Great Qian Shi ridges tunnel passes through from huge talus middle and upper part, 50 meters of tunnel top talus maximum gauge, tunnel bottom from
Talus base rock height up to more than 32 meters, according to the prospect pit of tunnel entrance geology, friction pile excavate prompting, cut-and-cover tunnel section bottom with
Lower 10-15 rice starts to occur freezing layer for many years, freezes ice layer thickness for many years at 12 meters or so, freezes average elevation at the top of layer
423.00.Talus bottom to build the sub- reservoir in power station passageway, freeze for many years layer be entirely located in the sub- reservoir in passageway ordinary water level (+
425.00) below, freeze layer for many years to be dissolved gradual whole by reservoir filling immersion, can be made after 12 meters thick of ice sheet thawing deformation
Into the sedimentation of import talus, unstable phenomenon, great hidden danger is caused safely to railway operation, it is necessary to pass through ice-melt before constructing tunnel
Thawing deformation is discharged in advance, prevent railway from being damaged because of ice sheet thaw collapse deformation for many years.
Utility model content
The purpose of this utility model is to provide a kind of structure for melting huge talus loose media bottom frost zone, to solve
The problem of being proposed in above-mentioned background technology.
To achieve the above object, the utility model provides following technical scheme：
A kind of structure for melting huge talus loose media bottom frost zone, including ice-melt hole, waterwall, thawing pond, recovery
Intercepting ditch, lime water storage reaction tank and water pump；Using vertically being crept into pipe rig, ice-melt hole, which is evenly distributed on, melts in the ice-melt hole
In ice formation, the bottom hole in ice-melt hole is located at the downside of frost zone top surface, is provided with pillar in ice-melt hole, the waterwall, which is arranged on, to be melted
Change area periphery, waterwall, which surrounds melt zone, melts pond, and described recovery intercepting ditch one end is connected to Study on Rock bottom ice-melt water row
Pool, the recovery intercepting ditch other end are connected to lime water storage reaction tank, and the lime water storage reaction tank is provided with two altogether, described
Water in lime water storage reaction tank is extracted into by water pump to be melted in pond, is then penetrated into ice-melt hole by melting pond, finally reached
The bottom in ice-melt hole carries out heat exchange with ice sheet top surface, and the water after turning cold flows to talus lower floor to intercepting ditch is reclaimed from ice face, so
After be pooled in lime water storage reaction tank and recycled.
As further program of the utility model：The height of the waterwall is 50cm.
As the utility model further scheme：The ice-melt hole is provided with 6 rows altogether, and often row is provided with 10, melts
Ice hole uses quincuncial arrangement.
As the utility model further scheme：The distance that the bottom hole in the ice-melt hole enters below frost zone top surface
More than 1 meter.
As the utility model further scheme：Heat exchanging holes are provided with the pillar, heat exchange pitch of holes is 50cm,
Heat emission hole uses quincuncial arrangement, and the material of the pillar is steel.
As the utility model further scheme：The water pump is provided with five altogether, the water outlet caliber size of water pump
For 6 cun.
Compared with existing normal-temperature water de-icing technology, the beneficial effects of the utility model are：
1) the utility model is low to plant equipment configuration requirement, it is only necessary to utilizes normal pipe-following drilling machine, high-pressure hydraulic pump
Etc. the thawing of frost zone for many years under open cut tunnel scope talus can be completed.
2) the utility model can realize the problem of the loose talus drilling difficulty or ease bit freezing of macroporosity using pipe-following drilling.
3) the utility model heats the temperature of ice-melt water, heat exchanger effectiveness using heat caused by quick lime and water reaction
Height, ice-melt duration are shorter than normal-temperature water.
4) the utility model good economy performance, ice-melt effect is detected by inspection hole, display ice-melt effect is preferable, energy
Preferably melt to freezing layer, speed of application is fast, and work efficiency is high, and total management cost is low.Eliminate in talus and freeze for many years
Layer after reservoir filling immersion thaw collapse may to talus potential safety hazard caused by stable and railway operation.Construction technology is simple, peace
Entirely, it is economic, practical, easy to control, effect on environment is small.
5) the utility model may flow out scope digging arc recovery intercepting ditch in talus bottom ice-melt water, after recovery cooling
Ice-melt water reuses, environmentally safe.
Brief description of the drawings
It is ice sheet ice-melt hole arrangement and subregion floor map under open cut tunnel section talus that Fig. 1, which is,.
Fig. 2 is that side schematic view is arranged in ice sheet ice-melt hole under open cut tunnel section talus.
Fig. 3 is the huge talus loose media bottom frost zone process schematic representation of thawing.
In figure：1- ice-melts hole, 2- frost zone top surfaces, 3- waterwalls, 4- melt pond, 5- recovery intercepting ditch, 6- lime water storages
Reaction tank, 7- water pumps, 8- thermometer holes, 9- holes ground, 10- tunnel-liners.
Embodiment
The technical solution of the utility model is described in more detail with reference to embodiment.
Refer to Fig. 1-3, a kind of structure for melting huge talus loose media bottom frost zone, including ice-melt hole 1, waterwall
3rd, pond 4, recovery intercepting ditch 5, lime water storage reaction tank 6 and water pump 7 are melted；The ice-melt hole 1 is vertically crept into using pipe rig, is melted
Ice hole 1 is evenly distributed in ice-melt area, and the bottom hole in the ice-melt hole 1 enters distance of the frost zone top surface below 2 more than 1 meter,
The bottom hole in ice-melt hole 1 is located at the downside of frost zone top surface 2, and the ice-melt hole 1 is provided with 6 rows altogether, and often row is provided with 10, ice-melt
Hole 1 uses quincuncial arrangement；Pillar is installed in each ice-melt hole 1, pillar can prevent talus loose media from causing duct to block, shield
Pipe is provided with heat exchanging holes, and heat exchange pitch of holes is 50cm, and pillar uses quincuncial arrangement, and the material of the pillar is steel；It is described
Waterwall 3 is arranged on melt zone periphery, and waterwall 3, which surrounds melt zone, melts pond 4, and the height of the waterwall 3 is 50cm；Institute
State recovery intercepting ditch 5 one end and be connected to Study on Rock bottom ice-melt water catchment, the recovery other end of intercepting ditch 5 is connected to lime water storage
Reaction tank 6, the lime water storage reaction tank 6 are provided with two altogether, the field reacted in lime water storage reaction tank 6 for lime and water
Institute, lime make the water temperature in lime water storage reaction tank 6 be maintained at 60 DEG C or so with the reacted heat of water；When a lime water storage
When reaction tank 6 works, the white lime cleared up in another lime water storage reaction tank 6, in case alternating use；The water pump 7
Water in lime water storage reaction tank 6 is extracted into and melted in pond 4, is then penetrated into ice-melt hole 1 by melting pond 4, finally reached
The bottom in ice-melt hole 1 carries out heat exchange with ice sheet top surface 2, melts the ice sheet on the downside of the scope of pond 4 in lime water storage reaction tank 6
Slowly melt under warm water effect；Water after turning cold flows to talus lower floor to recovery intercepting ditch 5 from ice face, is then pooled to lime storage
Recycled in water reaction tank 6；The water pump 7 is provided with five altogether, and the water outlet caliber size of water pump 7 is 6 cun；
Thermometer hole 8 is additionally provided with the thawing pond 4, thermometer hole 8 is used for the temperature for detecting frost zone scope rock mass, works as institute
When having that temperature is lifted to more than 5 DEG C in the range of ice sheet in ice-melt hole, one's respective area ice-melt is completed, and is changed to next ice-melting pool and is carried out
Ice-melt, until the ice sheet in cut-and-cover tunnel influence area all melts.
A kind of method for melting huge talus loose media bottom frost zone, its key step are as follows：
1) open cut tunnel section ice-melt regional extent and the position of ice-melt hole 1 are measured, vertical ice-melt hole 1 is crept into using with pipe rig；
2) steel pillar below 2, is installed to bottom hole in drilling ice-melt hole 1 to frost zone top surface；
3) when all 1 whole pore-formings of ice-melt hole and after install pillar, ice-melt areas outside sets shelves waterwall 3, forming region
Melt pond 4；
4) recovery intercepting ditch 5 is dug in the possible draining scope of Study on Rock bottom ice-melt water, ice-melt water is led to quick lime water storage
Reaction tank 6, quick lime plus at the uniform velocity add water storage reaction tank 6 and reacted with water, water temperature is maintained at 60 DEG C or so, a water storage is anti-
When answering the pond to work, another quick lime water storage reaction tank cleaning white lime, in case alternating use；
5) alternately drawn water from bottom water storage reaction tank 6 to melting in pond 4 with water pump 7, melt the hot water in pond 4 from ice-melt
Hole 1 enters ice sheet top surface 2 and ice and carries out heat exchange, and the ice sheet under ice-melting pool scope slowly melts, and the water after turning cold is from ice face stream
To talus lower floor to intercepting ditch 5 is reclaimed, then collect quick lime water storage reaction tank 6 and recycle；
6) when temperature is lifted to more than 5 DEG C in the range of ice sheet in all ice-melt holes 1, in the central area in ice-melt region
Three thermometer holes 8 are bored, when the temperature in hole in the range of ice sheet is more than 5 DEG C, one's respective area ice-melt is completed, and changes to next ice-melt
Pond carries out ice-melt, until the ice sheet in cut-and-cover tunnel influence area all melts.
Realized by above-mentioned steps and freeze melting layer construction in cut-and-cover tunnel section talus for many years, eliminate in talus ice for many years
Freeze layer after reservoir filling immersion thaw collapse may to talus potential safety hazard caused by stable and railway operation.This method only needs to use
Rig, water pump, river and quick lime etc., construction technology is simple, safe, economic, practical, easy to control, effect on environment is small.
Better embodiment of the present utility model is explained in detail above, but the utility model be not limited to it is above-mentioned
Embodiment, in one skilled in the relevant art's possessed knowledge, the utility model ancestor can also not departed from
Various changes can be made on the premise of purport.
Claims (6)
1. a kind of structure for melting huge talus loose media bottom frost zone, it is characterised in that including ice-melt hole (1), waterwall
(3) pond (4), recovery intercepting ditch (5), lime water storage reaction tank (6) and water pump (7), are melted；The ice-melt hole (1) is using with pipe
Rig is vertically crept into, and ice-melt hole (1) is evenly distributed in ice-melt area, and the bottom hole of ice-melt hole (1) is located under frost zone top surface (2)
Side, pillar is installed in ice-melt hole (1), the waterwall (3) is arranged on melt zone periphery, and waterwall (3) surrounds melt zone
Melt pond (4), described recovery intercepting ditch (5) one end is connected to Study on Rock bottom ice-melt water catchment, and recovery intercepting ditch (5) is another
End is connected to lime water storage reaction tank (6), and the lime water storage reaction tank (6) is provided with two altogether, and the water pump (7) is by lime
Water in water storage reaction tank (6), which is extracted into, to be melted in pond (4), is then penetrated into ice-melt hole (1) by melting pond (4), finally arrived
Heat exchange is carried out with ice sheet top surface (2) up to the bottom of ice-melt hole (1), the water after turning cold flows to talus lower floor to recovery from ice face and cut
Ditch (5), then it is pooled in lime water storage reaction tank (6) and is recycled.
2. the structure according to claim 1 for melting huge talus loose media bottom frost zone, it is characterised in that the gear
The height of waterwall (3) is 50cm.
3. the structure according to claim 1 for melting huge talus loose media bottom frost zone, it is characterised in that described to melt
Ice hole (1) is provided with 6 rows altogether, and often row is provided with 10, and ice-melt hole (1) uses quincuncial arrangement.
4. the structure according to claim 1 for melting huge talus loose media bottom frost zone, it is characterised in that described to melt
The bottom hole in ice hole (1) enters the distance of frost zone top surface (2) below more than 1 meter.
5. the structure according to claim 1 for melting huge talus loose media bottom frost zone, it is characterised in that the shield
Heat exchanging holes are provided with pipe, heat exchange pitch of holes is 50cm, and heat emission hole uses quincuncial arrangement, and the material of the pillar is steel.
6. the structure according to claim 1 for melting huge talus loose media bottom frost zone, it is characterised in that the water
Pump (7) is provided with five altogether, and the water outlet caliber size of water pump (7) is 6 cun.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720256441.7U CN206972235U (en) | 2017-03-16 | 2017-03-16 | A kind of structure for melting huge talus loose media bottom frost zone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720256441.7U CN206972235U (en) | 2017-03-16 | 2017-03-16 | A kind of structure for melting huge talus loose media bottom frost zone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206972235U true CN206972235U (en) | 2018-02-06 |
Family
ID=61414352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720256441.7U Withdrawn - After Issue CN206972235U (en) | 2017-03-16 | 2017-03-16 | A kind of structure for melting huge talus loose media bottom frost zone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206972235U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506003A (en) * | 2017-03-16 | 2018-09-07 | 中铁十八局集团有限公司 | A kind of structure and its method for melting huge talus loose media lower part frost zone |
| CN109188540A (en) * | 2018-09-05 | 2019-01-11 | 中铁十八局集团有限公司 | Many years frost zone range exploitation method in a kind of huge loose media talus of macroporosity |
-
2017
- 2017-03-16 CN CN201720256441.7U patent/CN206972235U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506003A (en) * | 2017-03-16 | 2018-09-07 | 中铁十八局集团有限公司 | A kind of structure and its method for melting huge talus loose media lower part frost zone |
| CN108506003B (en) * | 2017-03-16 | 2023-09-22 | 中铁十八局集团有限公司 | Structure and method for melting frozen layer at lower part of large rock mass loose body |
| CN109188540A (en) * | 2018-09-05 | 2019-01-11 | 中铁十八局集团有限公司 | Many years frost zone range exploitation method in a kind of huge loose media talus of macroporosity |
| CN109188540B (en) * | 2018-09-05 | 2023-06-30 | 中铁十八局集团有限公司 | Method for exploring range of frozen layer for many years in large-porosity giant loose rock mass |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180206 Effective date of abandoning: 20230922 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180206 Effective date of abandoning: 20230922 |