CN206308569U - It is a kind of to reinforce the road structure for punishing the solution cavity that underlies - Google Patents
It is a kind of to reinforce the road structure for punishing the solution cavity that underlies Download PDFInfo
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- CN206308569U CN206308569U CN201621377401.XU CN201621377401U CN206308569U CN 206308569 U CN206308569 U CN 206308569U CN 201621377401 U CN201621377401 U CN 201621377401U CN 206308569 U CN206308569 U CN 206308569U
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- solution cavity
- curtain
- grouting
- hole
- reinforcement
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Abstract
The utility model discloses a kind of road structure reinforced and punish the solution cavity that underlies, it mainly includes roadbed (1), reinforcement crossbeam (2), curtain-grouting hole (3), Punching Borehole Cast-in-place Concrete Pile (4), solution cavity (6), curtain reinforcement area (7), steel pile casting (8)；The utility model carries out grouting and reinforcing treatment to solution cavity (6) peripheral limit using sleeve valve barrel grouting method by curtain-grouting hole (3) first, forms curtain reinforcement area (7) and blocks current with this, plays the purpose of impervious leakage-stopping；Then solution cavity (6) is carried out using various sizes of Punching Borehole Cast-in-place Concrete Pile (4) pouring reinforcing, is poured using steel pile casting (8) in solution cavity (6) region；Last Punching Borehole Cast-in-place Concrete Pile (4) is connected with the top in the curtain-grouting hole (3) after slip casting by reinforcement crossbeam (2), is formed and is collectively constituted Net Pile Composite Ground with reinforcement beam more than stake top with the stake of firm shape；The utility model can effectively Subgrade underlie buried depth more than 10m large-scale solution cavity, and roadbed can be played reinforcement protection effect；The structure not only convenient construction, and it is applied widely.
Description
Technical field
The utility model is related to the road engineering technical field in civil engineering, underlies particularly with regard to one kind reinforcing punishment molten
The road structure in hole.
Background technology
China's complex geologic conditions, karst distribution is extremely wide.With the development of highway construction, highway route can not
Karsts developing area region is passed through in the meeting for avoiding.Solution cavity and soil cave that karst section is largely present, to the construction and operation of highway subgrade
Can bring potential hazard, solution cavity that universal bad geological disaster is had become in highway in China process of construction, it is soluble
Rock produced under corrosion in the presence of water it is serious collapse, with this, solution adopt the threat that solution cavity is produced to highway construction
It is extremely urgent.
At present, the threat mode that releasing solution cavity is produced to highway construction is a lot, and it is broadly divided into slip casting filling and pile foundation
Two major classes；Good effect is played in slip casting filling to subgrade stability, can keep the stability of whole roadbed, but it is inadaptable
In big and deep solution cavity, and slip casting filling somewhat expensive, construction is complicated；Pile foundation reinforcement can provide enough holding for roadbed
Power is carried, the position of its pile foundation and spacing play a key effect to subgrade stability, but for how to determine the position of pile foundation
Put and do not obtain unified certification so far with spacing, while existing pile foundation tends not to be supported under water erosion is acted on constantly
The solution cavity of expansion, it is impossible to ensure the long-term stability of roadbed.
The content of the invention
For problem above, the utility model discloses a kind of road structure reinforced and punish the solution cavity that underlies, using following
Technical scheme：Border is closed on to solution cavity using Curtain Grouting Method first carries out consolidation process, to prevent the continuous expansion of solution cavity, its
Secondary use Punching Borehole Cast-in-place Concrete Pile is reinforced to solution cavity area, and when pouring Punching Borehole Cast-in-place Concrete Pile in solution cavity region, its segment section is used
Steel pile casting is poured, and can save substantial amounts of slurries, while for top layer roadbed provides enough support forces, it is horizontal finally by reinforcement
With the curtain-grouting hole after pouring be connected with each other Punching Borehole Cast-in-place Concrete Pile by beam, forms the stake-net composite foundation of stabilization, it is ensured that its roadbed
Resistance to overturning, the road structure can effectively Subgrade underlie buried depth more than 10m large-scale solution cavity.
The road structure of the solution cavity that underlies is punished in a kind of described reinforcing, it is characterized in that, described curtain-grouting hole (3) Cheng Yuan
Shape is arranged, and it is 1.5m to surround the distance between whole solution cavity, adjacent curtain-grouting hole (3) d, and curtain-grouting hole (3) are away from solution cavity
(6) edge is not less than 1.5m apart from D.
The road structure of the solution cavity that underlies is punished in a kind of described reinforcing, it is characterized in that, punching is poured to solution cavity (6) region
Poured using steel pile casting (8) during bored concrete pile (4), and steel pile casting (8) lower bottom part on solution cavity (6) is not less than 0.5m, perfusion slurry
Liquid is not less than 32.5MPa grades using intensity, and the ratio of mud uses 1:1.3~1:1.5, curtain-grouting hole is double using cement-waterglass
Slurries, wherein modulus of water glass are 2.4 ~ 3.4, and concentration is more than 50 Baume degrees.
The road structure of the solution cavity that underlies is punished in a kind of described reinforcing, it is characterized in that, curtain-grouting hole (3) and punching perfusion
The low side of stake (4) is below more than solution cavity elevation of bottom 0.5m.
The beneficial effects of the utility model：Border is closed on to solution cavity by Curtain Grouting Method carries out consolidation process, with this section
Cut off the water supply stream, the purpose of impervious leakage-stopping is played, while be prevented from solution cavity no longer expanding；Using Punching Borehole Cast-in-place Concrete Pile can carry for roadbed
For enough bearing capacities, poured using steel pile casting in solution cavity area, substantial amounts of slurries can be saved；Punching is irrigated by reinforcement crossbeam
Stake is interconnected so as to form stable stake-net composite foundation with the curtain-grouting hole after the completion of pouring, it is ensured that its ground and roadbed
The overall stability in workspace, the structure is not only constructed simple, economic and practical but also convenient construction, applied widely.
Brief description of the drawings
Fig. 1 is road structure schematic diagram of the present utility model.
Fig. 2 is the top view of the utility model laying structure.
In figure, 1-roadbed, 2-reinforcement crossbeam, 3-curtain-grouting hole, 4-Punching Borehole Cast-in-place Concrete Pile, 5-large-sized punching
Bored concrete pile, 6-solution cavity, 7-curtain reinforcement area, 8-steel pile casting.
Specific embodiment
The utility model textural association mode and implementation steps are described further below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, the respectively front view and top view of utility model road structure, it mainly includes roadbed
(1), reinforcement crossbeam (2), curtain-grouting hole (3), Punching Borehole Cast-in-place Concrete Pile (4), large scale Punching Borehole Cast-in-place Concrete Pile (5), solution cavity (6), steel shield
Cylinder (8)；Wherein described roadbed (1) lower section is crossed-over by reinforcement crossbeam (2), and reinforcement crossbeam (2) is irrigated with punching
Stake (4), pour after curtain-grouting hole (3) be connected with each other, curtain-grouting is carried out using mini-valve tube in solution cavity (6) peripheral limit.
1st, then solution cavity is determined using various investigation methods such as geological radar method, high-density electric, engineering geological drilling first
Size, scope, so as to judge which kind of method to solve the problems, such as harm of the solution cavity to roadbed using.
2nd, according to the size and scope of solution cavity, if roadbed underlies, buried depth is more than the large-scale solution cavities of 10m, can take the roadbed knot
Structure, the position of planning Punching Borehole Cast-in-place Concrete Pile and curtain-grouting hole (3) is designed on road surface, is made in solution cavity region using drilling machine
Vent.
3rd, construction site first leveling in advance, and groove and catch pit are excavated along bore position, during mortar depositing construction, using automatic
Flow and manograph, it is that d is the curtain-grouting hole (3) of 1.5m to lay spacing in solution cavity critical edges position, and construct two rows
Injected hole, just intends slip casting at twice, and first time grouting pressure is controlled in 0.3MPa, second grouting pressure control 0.8 ~
1MPa, forms grouting curtain.
4th, jump hole using interval to inner side from surrounding in the slip casting of solution cavity area to construct, when Dong Rong areas pour, segment section uses steel
Casing is poured, and it pours depth less than solution cavity elevation of bottom at least more than 0.5m, and is laid by blossom type.
5th, pass through reinforcement crossbeam (2) after the completion of slip casting by Punching Borehole Cast-in-place Concrete Pile (4) and complete curtain-grouting hole (3) phase of slip casting
Mutual colligation is poured, and its reinforcement crossbeam (2) is poured using prestressing force and formed.The content that this explanation is not described in detail belongs to this specialty
Prior art known to art personnel.
Claims (4)
1. the road structure of the solution cavity that underlies is punished in a kind of reinforcing, including：Roadbed (1), reinforcement crossbeam (2), curtain-grouting hole (3),
Punching Borehole Cast-in-place Concrete Pile (4), solution cavity (6), steel pile casting (8)；It is characterized in that, described roadbed (1) is noted by the curtain after slip casting
Slurry hole (3) and Punching Borehole Cast-in-place Concrete Pile (4) are connected with each other by reinforcement crossbeam (2), and described curtain-grouting hole (3) top and punching are filled
Note stake (4) top keeps concordant, and its lower curtate is below solution cavity elevation of bottom, and described curtain-grouting hole (3) is positioned at solution cavity (6)
Close on borderline region.
2. the road structure of the solution cavity that underlies is punished in a kind of reinforcing according to claim 1, it is characterized in that, described curtain note
Slurry hole (3) circular arrangement, and it is 1.5m, curtain-grouting to surround the distance between whole solution cavity, adjacent curtain-grouting hole (3) d
Hole (3) is not less than 1.5m away from solution cavity (6) edge apart from D.
3. the road structure of the solution cavity that underlies is punished in a kind of reinforcing according to claim 1, it is characterized in that, described curtain note
Slurry hole (3) circular arrangement, and it is 1.5m, curtain-grouting to surround the distance between whole solution cavity, adjacent curtain-grouting hole (3) d
Hole (3) is not less than 1.5m away from solution cavity (6) edge apart from D.
4. the road structure of the solution cavity that underlies is punished in a kind of reinforcing according to claim 1, it is characterized in that, curtain-grouting hole
And the low side of Punching Borehole Cast-in-place Concrete Pile (4) is below more than solution cavity elevation of bottom 0.5m (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621377401.XU CN206308569U (en) | 2016-12-15 | 2016-12-15 | It is a kind of to reinforce the road structure for punishing the solution cavity that underlies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621377401.XU CN206308569U (en) | 2016-12-15 | 2016-12-15 | It is a kind of to reinforce the road structure for punishing the solution cavity that underlies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206308569U true CN206308569U (en) | 2017-07-07 |
Family
ID=59253280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621377401.XU Expired - Fee Related CN206308569U (en) | 2016-12-15 | 2016-12-15 | It is a kind of to reinforce the road structure for punishing the solution cavity that underlies |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206308569U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938649A (en) * | 2017-11-29 | 2018-04-20 | 上海建工五建集团有限公司 | A kind of solution cavity foundation reinforcement method |
| CN108729461A (en) * | 2018-07-04 | 2018-11-02 | 中国水利水电第七工程局成都水电建设工程有限公司 | For the constructing structure and construction method on aerial leakage stratum in deep hole impervious wall construction |
| CN109763391A (en) * | 2019-03-11 | 2019-05-17 | 杭州昂创科技有限公司 | Base and roadbed construction method are reinforced in disease road single hole combined casting |
| CN113073984A (en) * | 2021-04-16 | 2021-07-06 | 中铁隧道勘察设计研究院有限公司 | Construction method for grouting pre-reinforcement and pile-forming integration of tunnel penetrating through small karst cave groups |
| CN114892632A (en) * | 2022-05-18 | 2022-08-12 | 中建路桥集团有限公司 | Device for constructing shallow karst cave with large span and large range in road construction and construction method |
| CN115162319A (en) * | 2022-07-25 | 2022-10-11 | 福建冶地恒元建设有限公司 | Water plugging treatment device and method for seepage holes in underground karst cave wall in cast-in-place pile construction |
-
2016
- 2016-12-15 CN CN201621377401.XU patent/CN206308569U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938649A (en) * | 2017-11-29 | 2018-04-20 | 上海建工五建集团有限公司 | A kind of solution cavity foundation reinforcement method |
| CN108729461A (en) * | 2018-07-04 | 2018-11-02 | 中国水利水电第七工程局成都水电建设工程有限公司 | For the constructing structure and construction method on aerial leakage stratum in deep hole impervious wall construction |
| CN109763391A (en) * | 2019-03-11 | 2019-05-17 | 杭州昂创科技有限公司 | Base and roadbed construction method are reinforced in disease road single hole combined casting |
| CN109763391B (en) * | 2019-03-11 | 2021-01-15 | 浩祥(福建)建设有限公司 | Construction method for reinforcing base course and roadbed by single-hole composite grouting of damaged road |
| CN113073984A (en) * | 2021-04-16 | 2021-07-06 | 中铁隧道勘察设计研究院有限公司 | Construction method for grouting pre-reinforcement and pile-forming integration of tunnel penetrating through small karst cave groups |
| CN114892632A (en) * | 2022-05-18 | 2022-08-12 | 中建路桥集团有限公司 | Device for constructing shallow karst cave with large span and large range in road construction and construction method |
| CN115162319A (en) * | 2022-07-25 | 2022-10-11 | 福建冶地恒元建设有限公司 | Water plugging treatment device and method for seepage holes in underground karst cave wall in cast-in-place pile construction |
| CN115162319B (en) * | 2022-07-25 | 2024-01-30 | 福建冶地恒元建设有限公司 | Device and method for treating water seepage Kong Dushui of underground karst cave wall in construction of cast-in-place pile |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170707 Termination date: 20171215 |