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 PDF

Info

Publication number
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
Authority
CN
China
Prior art keywords
solution cavity
curtain
grouting
hole
reinforcement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201621377401.XU
Other languages
Chinese (zh)
Inventor
何忠明
杨煜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changsha University of Science and Technology
Original Assignee
Changsha University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changsha University of Science and Technology filed Critical Changsha University of Science and Technology
Priority to CN201621377401.XU priority Critical patent/CN206308569U/en
Application granted granted Critical
Publication of CN206308569U publication Critical patent/CN206308569U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

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

It is a kind of to reinforce the road structure for punishing the solution cavity that underlies
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).
CN201621377401.XU 2016-12-15 2016-12-15 It is a kind of to reinforce the road structure for punishing the solution cavity that underlies Expired - Fee Related CN206308569U (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (8)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
CN206308569U (en) It is a kind of to reinforce the road structure for punishing the solution cavity that underlies
CN105696427B (en) The construction method and its road structure of a kind of consolidation process newly built railway karst foundation
CN107503257B (en) One kind being close to mountain high-filled subgrade stabilization and Deformation control structure and construction method
CN106437726B (en) Shallow-depth-excavation tunnel crosses ground fissure crushed zone construction method
CN208605184U (en) Reinforcing structure of large-section tunnel underpass loose high-fill embankment
CN206337474U (en) The slip casting structure of covered karst embankment
CN106930321B (en) The construction method of underground structure is built in a kind of stake of pipe-jacking with large diameter combination hole
CN105525619B (en) A kind of water rich strata bored tunnel occlusion pipe curtain
CN109488202A (en) A kind of gravel rock stratum pile foundation drilling construction engineering method containing gravel-boulder bed
CN104895055A (en) Building grouting pile foundation construction method
CN105464074B (en) A kind of artificial digging pile high polymer grouting safeguard structure and its construction method
CN204199335U (en) A kind of pressure release well reducing PHC tube pile construction soil compaction effect
CN110306586A (en) A kind of foundation reinforcement method for traditional architecture
CN103321244A (en) Construction method for additionally arranged basement in existing building on sand foundation
CN110004991A (en) Underground structure anti-floating system and construction method based on raised type tangs plate
CN105673025A (en) Underground engineering loess tunnel ground surface settlement control construction process
CN103437340A (en) Method for strengthening soft foundation through high-pressure jet grouting
CN101838957A (en) Integral type T-shaped outer cantilever roads and construction method thereof
CN105971638A (en) Application of WSS construction method in shield tool changing reinforcement of water-rich sand layer
CN102817298B (en) Construction method on frozen soil
CN105369800B (en) One-step forming construction method for inserting steel pipe column into cast-in-situ bored pile in pilot tunnel
CN105971637A (en) Application of WSS construction method in shield end reinforcement of water-rich sand layer
CN109487793A (en) Inner support of pile foundation pit permanent support structure is perfused in a kind of solid matter under complex environment
CN115573725A (en) Stratum reinforcing method for comprehensive pipe gallery tunnel to penetrate existing subway shield
CN110344395A (en) A kind of supporting leg type underground continuous wall construction method

Legal Events

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