CN103821059A - Lateral restraining and reinforcing structure for stabilizing high-fill embankment with soft oil foundation built on bed rock - Google Patents
Lateral restraining and reinforcing structure for stabilizing high-fill embankment with soft oil foundation built on bed rock Download PDFInfo
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- CN103821059A CN103821059A CN201410042509.2A CN201410042509A CN103821059A CN 103821059 A CN103821059 A CN 103821059A CN 201410042509 A CN201410042509 A CN 201410042509A CN 103821059 A CN103821059 A CN 103821059A
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Abstract
A lateral restraining and reinforcing structure for stabilizing a high-fill embankment with a soft oil foundation built on a bed rock is used for the lateral restraining and reinforcing of the foundation of the embankment in a region which is limited in the construction of a dug pile. The stability problem of the high-fill embankment and the construction difficulty of the dug pile are overcome, and the problems of insufficient horizontal bearing capability and large deformation of the traditional cast-in-situ bored piles are improved. The structure comprises left reinforced concrete cast-in-situ bored piles and right reinforced concrete cast-in-situ bored piles, which are symmetrically arranged at slope toes at the two sides of the embankment in the longitudinal direction at an interval, left reinforced concrete top beams and right reinforced concrete top beams, which are fixedly connected with the left reinforced concrete cast-in-situ bored piles and the right reinforced concrete cast-in-situ bored piles into a whole are respectively arranged at the tops of the piles, and anchor cables of which the two ends are connected with the top beams in an anchoring way are arranged between the left reinforced concrete top beams and the right reinforced concrete top beams in the extension direction of the embankment at an interval.
Description
Technical field
The present invention relates to geotechnical engineering, the high embankment that particularly covers soft foundation on a kind of basement rock is stablized lateral restraint reinforcing construction.
Background technology
China Higher level railway, highway is built in a large number, in the process of road construction great development, run into a large amount of soft foundation embankment engineerings, and there is the high embankment engineering of a considerable amount of soft foundations, under many circumstances soft foundation being adopted separately to composite foundation stabilization is the stability that can not meet embankment engineering on soft foundation, while overlying on basement rock as weak soil, because composite foundation measure can not enter basement rock, can there is the broken line type sliding failure along bedrock surface in high embankment engineering, at this moment stablizing for high embankment on assurance soft foundation, need to take lateral restraint measure to high embankment engineering, conventionally apply lateral restraint stake, if adopt hole digging pile lateral restraint to reinforce on soft foundation, constructional difficulties is (even if hole digging pile can be constructed, but its working security problem is always controversial, even forbid to use hole digging pile in many countries and regions, in addition, labour cost is also more and more higher), therefore conventionally adopt bored pile, but because Pile footpath is little, Its ultimate bearing capacity is not enough and distortion is larger, its stressed effect of while is bad and construction investment is larger.Therefore solve problems in the urgent need to a kind of new lateral restraint pilework.
Summary of the invention
Technical problem to be solved by this invention is to provide the high embankment that covers soft foundation on a kind of basement rock and stablizes lateral restraint reinforcing construction, applying to the restricted regional road ground lateral restraint of hole digging pile reinforces, to overcome high embankment stability and an excavation pile construction difficult problem, and improve the problem that conventional borehole castinplace pile horizontal bearing capacity is not enough and distortion is large.
The technical solution adopted for the present invention to solve the technical problems is as follows:
The high embankment that covers soft foundation on basement rock of the present invention is stablized lateral restraint reinforcing construction, comprise the embankment of constructing on foundation soil, its feature comprises: under the toe of described embankment both sides, longitudinal separation is symmetrical arranged left side reinforced concrete bored pile, right side reinforced concrete bored pile, its stake top arranges and left side reinforced concrete bored pile respectively, the fixed left side steel concrete Guan Liang being integrated of right side reinforced concrete bored pile, right side steel concrete Guan Liang, left side steel concrete Guan Liang, its two ends difference anchor cable of anchor connection is with it set along embankment bearing of trend interval between the steel concrete hat beam of right side.
The invention has the beneficial effects as follows, applying to the high road ground lateral restraint in the restricted area of hole digging pile reinforces, can solve high embankment stability and excavation pile construction difficult problem, can improve again the problem that conventional borehole castinplace pile horizontal bearing capacity is not enough and distortion is large, improve its stress simultaneously, save the length of construction stake, have obvious economic benefit, structure stress is simply clear and definite, and construction safety, globality are strong, good stability, meet the trend of engineering development, there is wide popularizing application prospect.
Accompanying drawing explanation
This manual comprises following three width accompanying drawings:
Fig. 1 is the cross-sectional drawing that the high embankment that covers soft foundation on basement rock of the present invention is stablized lateral restraint reinforcing construction;
Fig. 2 is the plan view that the high embankment that covers soft foundation on basement rock of the present invention is stablized lateral restraint reinforcing construction;
Fig. 3 is the front view that the high embankment that covers soft foundation on basement rock of the present invention is stablized lateral restraint reinforcing construction;
Component shown in figure, toponym and corresponding mark: left side reinforced concrete bored pile 11, left side steel concrete hat beam 11a, right side reinforced concrete bored pile 12, right side steel concrete hat beam 12a, anchor cable 20, embankment 30, foundation soil A, horizon d B.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
With reference to Fig. 1, Fig. 2 and Fig. 3, the high embankment that covers soft foundation on basement rock of the present invention is stablized lateral restraint reinforcing construction, comprises the embankment 30 of constructing on foundation soil A.Under described embankment 30 both sides toes, longitudinal separation is symmetrical arranged left side reinforced concrete bored pile 11, right side reinforced concrete bored pile 12, its top arranges respectively and left side reinforced concrete bored pile 11, fixed left side steel concrete hat beam 11a, the right side steel concrete being integrated of right side reinforced concrete bored pile 12 are preced with beam 12a, between left side steel concrete hat beam 11a, right side steel concrete hat beam 12a, its two ends difference anchor cable 20 of anchor connection is with it set along embankment 30 bearing of trend intervals.
Described left side steel concrete hat beam 11a, right side steel concrete hat beam 12a arrange shrinkage joint every 20～30m one in the middle of adjacent two left side reinforced concrete bored piles 11, right side reinforced concrete bored pile 12.When foundation soil A is soft layer, the degree of depth that the bottom of described left side reinforced concrete bored pile 11, right side reinforced concrete bored pile 12 enters ground horizon d B through foundation soil A is no less than 3m.
Described the anchor cable 20 drawing is determined row is set according to high road ground lateral force size.Anchor cable 20 must be carried out anti-corrosion measure and guarantee its durability, when it is installed, answers stretch-draw straight, and initial stage stretching force should not be greater than 10% of anchorage cable design stretching force.
The high embankment that covers soft foundation on the above basement rock of the present invention that just explains through diagrams is stablized some principles of lateral restraint reinforcing construction, be not the present invention to be confined to shown in and in described concrete structure and the scope of application, therefore the corresponding modify being likely utilized every and equivalent, all belong to the scope of the claims that the present invention applies for.
Claims (4)
1. the high embankment that covers soft foundation on basement rock is stablized lateral restraint reinforcing construction, comprise the embankment (30) of constructing on foundation soil (A), its feature comprises: under the toe of described embankment (30) both sides, longitudinal separation is symmetrical arranged left side reinforced concrete bored pile (11), right side reinforced concrete bored pile (12), its stake top arranges and left side reinforced concrete bored pile (11) respectively, the fixed left side steel concrete Guan Liang (11a) being integrated of right side reinforced concrete bored pile (12), right side steel concrete Guan Liang (12a), left side steel concrete Guan Liang (11a), its two ends difference anchor cable of anchor connection (20) is with it set along embankment (30) bearing of trend interval between right side steel concrete Guan Liang (12a).
2. the high embankment that covers soft foundation on basement rock as claimed in claim 1 is stablized lateral restraint reinforcing construction, it is characterized in that: described left side steel concrete Guan Liang (11a), right side steel concrete Guan Liang (12a) arrange one shrinkage joint in the middle of adjacent two left side reinforced concrete bored piles (11), right side reinforced concrete bored pile (12) every 20～30m.
3. the high embankment that covers soft foundation on basement rock as claimed in claim 1 is stablized lateral restraint reinforcing construction, it is characterized in that: the degree of depth that the bottom of described left side reinforced concrete bored pile (11), right side reinforced concrete bored pile (12) enters ground horizon d (B) through foundation soil (A) is no less than 3m.
4. the high embankment that covers soft foundation on basement rock as claimed in claim 1 is stablized lateral restraint reinforcing construction, it is characterized in that: the spacing of described anchor cable (20) is not less than 3m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410042509.2A CN103821059A (en) | 2014-01-28 | 2014-01-28 | Lateral restraining and reinforcing structure for stabilizing high-fill embankment with soft oil foundation built on bed rock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410042509.2A CN103821059A (en) | 2014-01-28 | 2014-01-28 | Lateral restraining and reinforcing structure for stabilizing high-fill embankment with soft oil foundation built on bed rock |
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| CN103821059A true CN103821059A (en) | 2014-05-28 |
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| CN201410042509.2A Pending CN103821059A (en) | 2014-01-28 | 2014-01-28 | Lateral restraining and reinforcing structure for stabilizing high-fill embankment with soft oil foundation built on bed rock |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948233A (en) * | 2017-03-15 | 2017-07-14 | 温州市阳光建设有限公司 | A kind of town road asphalt concrete construction method |
| CN108867200A (en) * | 2018-06-05 | 2018-11-23 | 中铁二院工程集团有限责任公司 | A kind of Resistant heave high-speed railway rock chasm structuref and design method |
| CN111118993A (en) * | 2019-11-03 | 2020-05-08 | 中铁二院工程集团有限责任公司 | Embankment high-cantilever bilateral road shoulder pile slab wall reinforcing structure and construction method |
| CN111691250A (en) * | 2020-05-25 | 2020-09-22 | 中国路桥工程有限责任公司 | Construction method and equipment for cement concrete pavement |
| CN113215864A (en) * | 2021-05-08 | 2021-08-06 | 中铁二院工程集团有限责任公司 | Earth-rock interbed embankment structure and design method thereof |
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| JPH0796776B2 (en) * | 1990-09-03 | 1995-10-18 | 鹿島建設株式会社 | Yamadome method |
| JPH1114476A (en) * | 1997-06-19 | 1999-01-22 | Nishiki:Kk | Earth pressure measuring method using clinometer and safety managing system |
| CN101962929A (en) * | 2010-11-05 | 2011-02-02 | 华中科技大学 | Novel method for processing soft soil subgrade by pile-supporting reinforcing technology |
| CN202323922U (en) * | 2011-09-09 | 2012-07-11 | 中铁二院工程集团有限责任公司 | Tilted stratum soft foundation reinforcing structure of high-speed railway |
| CN103306289A (en) * | 2013-06-28 | 2013-09-18 | 中国三冶集团有限公司第一建筑工程公司 | Foundation pit piled anchor dado concrete anchor cable top beam structure and construction method thereof |
| CN204325837U (en) * | 2014-01-28 | 2015-05-13 | 中铁二院工程集团有限责任公司 | Basement rock covers the high roadbed reclamation lateral restraint reinforcing construction of soft foundation |
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- 2014-01-28 CN CN201410042509.2A patent/CN103821059A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0796776B2 (en) * | 1990-09-03 | 1995-10-18 | 鹿島建設株式会社 | Yamadome method |
| JPH1114476A (en) * | 1997-06-19 | 1999-01-22 | Nishiki:Kk | Earth pressure measuring method using clinometer and safety managing system |
| CN101962929A (en) * | 2010-11-05 | 2011-02-02 | 华中科技大学 | Novel method for processing soft soil subgrade by pile-supporting reinforcing technology |
| CN202323922U (en) * | 2011-09-09 | 2012-07-11 | 中铁二院工程集团有限责任公司 | Tilted stratum soft foundation reinforcing structure of high-speed railway |
| CN103306289A (en) * | 2013-06-28 | 2013-09-18 | 中国三冶集团有限公司第一建筑工程公司 | Foundation pit piled anchor dado concrete anchor cable top beam structure and construction method thereof |
| CN204325837U (en) * | 2014-01-28 | 2015-05-13 | 中铁二院工程集团有限责任公司 | Basement rock covers the high roadbed reclamation lateral restraint reinforcing construction of soft foundation |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948233A (en) * | 2017-03-15 | 2017-07-14 | 温州市阳光建设有限公司 | A kind of town road asphalt concrete construction method |
| CN108867200A (en) * | 2018-06-05 | 2018-11-23 | 中铁二院工程集团有限责任公司 | A kind of Resistant heave high-speed railway rock chasm structuref and design method |
| CN111118993A (en) * | 2019-11-03 | 2020-05-08 | 中铁二院工程集团有限责任公司 | Embankment high-cantilever bilateral road shoulder pile slab wall reinforcing structure and construction method |
| CN111691250A (en) * | 2020-05-25 | 2020-09-22 | 中国路桥工程有限责任公司 | Construction method and equipment for cement concrete pavement |
| CN111691250B (en) * | 2020-05-25 | 2021-11-23 | 中国路桥工程有限责任公司 | Construction method and equipment for cement concrete pavement |
| CN113215864A (en) * | 2021-05-08 | 2021-08-06 | 中铁二院工程集团有限责任公司 | Earth-rock interbed embankment structure and design method thereof |
| CN113215864B (en) * | 2021-05-08 | 2022-05-03 | 中铁二院工程集团有限责任公司 | Earth-rock interbed embankment structure and design method thereof |
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Application publication date: 20140528 |