CN202745086U - Drivepipe device for cotrolling frost heave and thaw collapse - Google Patents
Drivepipe device for cotrolling frost heave and thaw collapse Download PDFInfo
- Publication number
- CN202745086U CN202745086U CN 201220358347 CN201220358347U CN202745086U CN 202745086 U CN202745086 U CN 202745086U CN 201220358347 CN201220358347 CN 201220358347 CN 201220358347 U CN201220358347 U CN 201220358347U CN 202745086 U CN202745086 U CN 202745086U
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- China
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- thaw collapse
- ground
- frost heave
- drivepipe
- casing bit
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- Expired - Fee Related
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model relates to a drivepipe device for cotrolling frost heave and thaw collapse. The drivepipe device is arranged at the location of the decompression injected hole which is arranged between a freezing wall and the ground. The drivepipe device is characterized by comprising an external floral pipe and an internal hot salt water cycling drivepipe. The outer wall of the internal hot salt water cycling drivepipe is closely attached to the inner tube wall of the lower part of the external floral pipe. The muddy water in soil layer can be discharged through the external floral pipe by opening a decompression valve in a freezing period and also the development of the freezing wall can be controlled by cycling the hot salt water through the drivepipe inside the external floral pipe, and therefore elimination of frost heave power can be achieved. Meanwhile, thaw collapse of the ground can be reduced by grouting soil body through the external floral pipe in the later stage of the frost heave. The safety of the existing buildings on the ground can be guaranteed by the elimination of the freezing heave and the decrease of the thaw collapse.
Description
Technical field
The utility model relates to a kind of casing bit, particularly: discharge the casing bit that reduces the ground thaw collapse between frost-heaving force and frost free period in a kind of frozen construction, in the frozen construction process, play the effect of protection ground and ground existing building safety.
Background technology
Freezing process is to utilize the artificial cooling technology; water in the stratum is freezed, natural ground is become frozen soil, increase its strength and stability; contacting of isolated underground water and underground construction is in order to carry out the special construction technology of the construction of pit shaft or underground construction under the protection of frost wall.Its essence is and utilize artificial cooling Iterim Change rock and soil properties with consolidating stratum.
Extensive use along with freezing process, frost heave action in the frozen construction process and the ground thaw collapse in the course of defrosting have all brought sizable harm in a lot of occasions, especially in the shallow embedding horizontal frozen engineering of Urban Underground, ground and ground existing building are constituted a threat to safely.
Because in the gradually forming process of frost wall, water in the Rock And Soil constantly freezes, so that the volume of Rock And Soil constantly expands, and then produced certain frost-heaving force, cause easily the dangerous of the protuberance on ground and above ground structure, simultaneously in freezing the later stage course of defrosting, ice in the Rock And Soil melts gradually, the volume of Rock And Soil reduces, and the as easy as rolling off a log differential settlement that causes ground again consists of very large threat to the safety of the existing building on ground.
There is the measurement mechanism of known frost-heaving force in existing technology; this device is comprised of measuring tube body, gas-tight silo, pressure sensor etc.; it mainly is the size of measuring frost-heaving force; and can not eliminate frost-heave force; more can not control the thaw collapse on the ground in period that thaws, not have the effect of protection ground and ground existing building.
Summary of the invention
It is a kind of simple in structure that the purpose of this utility model provides in order to solve existing issue; can effectively eliminate the sleeve pipe of frost-heaving force and control ground thaw collapse; it can be eliminated frost-heaving force and control the ground thaw collapse in the later stage course of defrosting in the horizontal freezing process of Urban Underground, thereby reaches the safety of protection ground and ground existing building.
For solving the problems of the technologies described above, the utility model is taked following technical scheme: a kind of casing bit for eliminating frost-heaving force and control surface settlement, it is arranged on the pressure release injected hole place between frost wall and the ground, it is characterized in that: it comprises outside floral tube and internal heat brine recycling, the outer wall of internal heat brine recycling sleeve pipe and outside floral tube bottom inner tubal wall fit tightly, muddy water in the soil layer is discharged from outside floral tube, also can be by the sleeve pipe cycling hot salt solution control freezing wall development of outside floral tube inside, reach the effect of eliminating frost-heave force, simultaneously, thus can also carry out the effect that slip casting reaches control surface settlement by outside floral tube to the soil body when thawing freezing the later stage.
Further, the length of described casing bit is by the horizontal frozen Depth determination.
Further, the inside of described outside floral tube arranges hot salt brine circulation sleeve pipe.
Further, the outer wall of described internal heat brine recycling sleeve pipe and outside floral tube below inner tubal wall fits tightly.
Further, described internal heat brine recycling sleeve pipe is comprised of feed pipe and liquid back pipe.
Further, the top of described outside floral tube adopts sealing plate and bottom to adopt the porous base cone to seal.
Further, the position, aperture of described outside floral tube is equipped with pressure meter and pressure relief valve.
Sleeve pipe in the utility model is eliminated frost-heave force and is reduced the ground thaw collapse by the casing bit of arranging control frost heave and thaw collapse in the pressure release injected hole; Jointly eliminate frost-heave force by the dual mode of outside floral tube discharge muddy water and inner sleeve cycling hot salt solution between freezing period; Carry out the thaw collapse that slip casting reduces ground by outside floral tube to the soil body when thawing; By eliminating the safety of frost heave and minimizing thaw collapse common guarantee ground and ground existing building.
Description of drawings
Fig. 1 is freezing pipe and pressure release injected hole layout plan.
Fig. 2 is the structural representation of casing bit.
Fig. 3 is the A-A sectional view of Fig. 2.
1. freezing pipes among the figure, 2. frost wall, 3. pressure release injected hole, 4. ground, 5. above ground structure, 6. outside floral tube, 7. internal heat brine recycling sleeve pipe, 8. hot salt brine feed pipe, 9. hot salt brine liquid back pipe, 10. pressure meter, 11. pressure relief valves, 12. porous base cones, 13. sealing plates.
The specific embodiment
The casing bit of control frost heave described in the utility model and ground thaw collapse is arranged on the pressure release injected hole place between frost wall and the ground, it comprises outside floral tube and internal heat brine recycling sleeve pipe, between freezing period, can the muddy water in the soil layer be discharged from outside floral tube by opening pressure relief valve, the development of sleeve pipe cycling hot salt solution control freezing wall that also can be by outside floral tube inside reaches the effect of eliminating frost-heave force; Simultaneously, thus can also carry out slip casting by outside floral tube to the soil body when thawing and reach the effect that reduces the ground thaw collapse freezing the later stage.By eliminating the safety of frost heave and minimizing thaw collapse common guarantee ground and ground existing building.
Below in conjunction with accompanying drawing 1-3 casing bit of the present utility model is specifically described.
Fig. 1 shows freezing pipe and pressure release injected hole layout plan.Among Fig. 1,1 is that freezing pipe, 2 is that frost wall, 3 pressure release injected holes, 4 are that ground, 5 is above ground structure, control described in the utility model frost heave and ground thaw collapse casing bit just be arranged among the described pressure release injected hole 3, thereby play the effect of eliminating frost-heave force and reducing the ground thaw collapse.
Fig. 2 shows the structural representation of described casing bit.As shown in Figure 2, described casing bit comprises outside floral tube 6, internal heat brine recycling sleeve pipe 7, pressure meter 10, pressure relief valve 11, sealing plate 13, wherein internal heat brine recycling sleeve pipe 7 is comprised of hot salt brine feed pipe 8 and hot salt brine liquid back pipe 9, with this guarantee between freezing period that the muddy water in the soil body is discharged smoothly, the circulation of internal heat salt solution and the period of thawing be to grouting in soil mass.
Fig. 3 is the sectional view of the A-A direction among Fig. 2.As shown in Figure 3, the outer wall of internal heat brine recycling sleeve pipe 7 and outside floral tube 6 below inner tubal walls fit tightly, described outside floral tube 6 can make between freezing period the muddy water in the soil body from the tube wall of outside floral tube 6 and the hole of porous base cone 12, enter in the outside floral tube 6, and when pressure meter 12 reaches certain value, the muddy water that can discharge in the outside floral tube 6 by opening pressure relief valve 11, thus frost-heave force can be eliminated; Described internal heat brine recycling sleeve pipe 7 comprises hot salt brine feed pipe 8 and hot salt brine liquid back pipe 9, can be by flowing into hot salt brine from hot salt brine feed pipe 8 between freezing period, flow out to hot salt brine liquid back pipe 9, hot salt brine is in the flow process of internal heat brine recycling sleeve pipe 7, can be by the tube wall frozen soil transferring heat laterally of outside floral tube 6, and then control the development of outside floral tube 6 outside frost walls 2, eliminate the part frost-heave force; Described outside floral tube 6 can also thaw period, by opening valve 11, to outside floral tube 6 interior slip castings, makes slurries inject the soil body from tube wall and the porous base cone 12 of outside floral tube 6, fills the surrounding soil hole to reach, and reduces the effect of ground thaw collapse.
Claims (6)
1. casing bit that is used for control frost heave and thaw collapse, the pressure release injected hole place that it is arranged between frost wall and the ground is characterized in that: it comprises outside floral tube and internal heat brine recycling sleeve pipe.
2. the casing bit for control frost heave and thaw collapse according to claim 1, it is characterized in that: the length of described casing bit is by the horizontal frozen Depth determination.
3. the casing bit for control frost heave and thaw collapse according to claim 1 is characterized in that: inner tubal wall fits tightly below the outer wall of described internal heat brine recycling sleeve pipe and the outside floral tube.
4. the casing bit for control frost heave and thaw collapse according to claim 1, it is characterized in that: described internal heat brine recycling sleeve pipe is comprised of feed pipe and liquid back pipe.
5. the casing bit for control frost heave and thaw collapse according to claim 1, it is characterized in that: the top of described outside floral tube adopts sealing plate and bottom to adopt the porous base cone to seal.
6. the casing bit for control frost heave and thaw collapse according to claim 1, it is characterized in that: the position, aperture of described outside floral tube is equipped with pressure meter and pressure relief valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220358347 CN202745086U (en) | 2012-07-20 | 2012-07-20 | Drivepipe device for cotrolling frost heave and thaw collapse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220358347 CN202745086U (en) | 2012-07-20 | 2012-07-20 | Drivepipe device for cotrolling frost heave and thaw collapse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202745086U true CN202745086U (en) | 2013-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220358347 Expired - Fee Related CN202745086U (en) | 2012-07-20 | 2012-07-20 | Drivepipe device for cotrolling frost heave and thaw collapse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202745086U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060603A (en) * | 2014-07-11 | 2014-09-24 | 天地科技股份有限公司 | Temperature controller device capable of measuring frost heaving pressure |
| CN115419046A (en) * | 2022-08-15 | 2022-12-02 | 北京中煤矿山工程有限公司 | Construction method for reducing frost heaving through accurate pressure relief |
-
2012
- 2012-07-20 CN CN 201220358347 patent/CN202745086U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060603A (en) * | 2014-07-11 | 2014-09-24 | 天地科技股份有限公司 | Temperature controller device capable of measuring frost heaving pressure |
| CN104060603B (en) * | 2014-07-11 | 2016-03-16 | 天地科技股份有限公司 | A kind of thermostat device can measuring frost-heaving force |
| CN115419046A (en) * | 2022-08-15 | 2022-12-02 | 北京中煤矿山工程有限公司 | Construction method for reducing frost heaving through accurate pressure relief |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20130720 |