CN201962558U - High-steepness side slope subgrade structure for mountainous area - Google Patents

High-steepness side slope subgrade structure for mountainous area Download PDF

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Publication number
CN201962558U
CN201962558U CN2011200747295U CN201120074729U CN201962558U CN 201962558 U CN201962558 U CN 201962558U CN 2011200747295 U CN2011200747295 U CN 2011200747295U CN 201120074729 U CN201120074729 U CN 201120074729U CN 201962558 U CN201962558 U CN 201962558U
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CN
China
Prior art keywords
reinforced concrete
slope
steel concrete
roadbed
long column
Prior art date
Application number
CN2011200747295U
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Chinese (zh)
Inventor
庞应刚
姚裕春
李安洪
周成
李楚根
叶世斌
袁碧玉
张田
曾永红
李井元
吴沛沛
Original Assignee
中铁二院工程集团有限责任公司
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Priority to CN2011200747295U priority Critical patent/CN201962558U/en
Application granted granted Critical
Publication of CN201962558U publication Critical patent/CN201962558U/en

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Abstract

The utility model discloses a high-steepness side slope subgrade structure for a mountainous area, which is used for effectively lowering the construction cost on building of a high-steepness subgrade in the mountainous area and preventing the huge potential safety hazard existing in the excavation of a high-steepness side slope. The high-steepness side slope subgrade structure comprises reinforced concrete long column piles (1), reinforced concrete short piles (2), reinforced concrete joists (3) and reinforced concrete pavements (4), wherein the reinforced concrete long column piles (1) are arranged on the outer side of a high-steepness subgrade side slope and are arranged at intervals along the longitudinal direction of the subgrade; anchor ropes (5) anchored with bed rock are arranged at intervals along the vertical directions of the reinforced concrete long column piles (1); the reinforced concrete short piles (2) are arranged on the inner side of an excavation side slope of the high-steepness subgrade, and are correspondingly arranged at intervals in parallel to the outer side reinforced concrete long column piles (1) along the longitudinal direction of the subgrade; the reinforced concrete joists (3) are fixedly connected with the top of each group of corresponding reinforced concrete long column piles (1) and reinforced concrete short piles (2); and the reinforced concrete pavements (4) extend along the longitudinal direction of the subgrade, and are poured on each reinforced concrete joist (3).

Description

Mountain area high gradient slope roadbed structure

Technical field

The utility model relates to railway bed, and high gradient slope roadbed structure in particularly a kind of mountain area is to avoid occurring the existing huge potential safety hazard of excavation high gradient slope.

Background technology

Mountain road turns one of key condition that solves the mountain area economy development into, because mountain area geological environment fragility, landform are steep, builds a large amount of tunnels, bridge engineering, and then construction costs is huge.How under this geology, orographic condition, to build subgrade construction, become the problem that urgent need is studied, press for a kind of novel roadbed structure of utility model and can guarantee to build roadbed safety, can reducing the construction costs again and compliance with environmental protection requirements.

The utility model content

Technical problem to be solved in the utility model provides a kind of mountain area high gradient slope roadbed structure, can effectively reduce the construction cost that high steep mountain area roadbed is built, and avoids occurring the existing huge potential safety hazard of excavation high gradient slope.

The technical scheme that its technical problem that solves the utility model adopts is as follows:

Mountain area of the present utility model high gradient slope roadbed structure is characterized in that it comprises: the stake of steel concrete long column, place the high steep roadbed side slope outside, and be provided with along roadbed longitudinal separation, vertically be arranged at intervals with anchor cable in the stake of steel concrete long column with the basement rock anchoring; The steel concrete stub places high steep roadway excavation side slope inboard, along roadbed vertically with the corresponding parallel interval setting of outside steel concrete long column stake; The steel concrete joist, fixed with it at the top of the corresponding steel concrete long column stake of each group, steel concrete stub; Along reinforced concrete pavement, build on each steel concrete joist along the roadbed longitudinal extension.

Described steel concrete long column stake bottom is imbedded in the stable side slope rock-soil layer.

The domatic soil nailing that is provided with of high gradient slope that described reinforced concrete pavement is following.

The beneficial effects of the utility model are, can solve high steep mountain area builds the width of subgrade deficiency and causes the problem of deep-cutting cutting and can not guarantee subgrade stability, the pier of avoiding constructing a bridge deep-cuts high steep cutting or high pier is striden greatly, construction technology is simple, can effectively save construction investment, and compliance with environmental protection requirements, have wide popularizing application prospect.

Description of drawings

This manual comprises as next width of cloth accompanying drawing:

Fig. 1 is the cross-sectional configuration schematic diagram of the utility model mountain area high gradient slope roadbed structure.

Position shown in the figure, member and pairing mark: steel concrete long column stake 1, steel concrete stub 2, steel concrete joist 3, reinforced concrete pavement 4, anchor cable 5, soil nailing 6.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

With reference to Fig. 1, high gradient slope roadbed structure in the utility model mountain area comprises: steel concrete long column stake 1, place the high steep roadbed side slope outside, and be provided with along roadbed longitudinal separation, vertically be arranged at intervals with anchor cable 5 in the steel concrete long column stake 1 with the basement rock anchoring; Steel concrete stub 2 places high steep roadway excavation side slope inboard, along roadbed vertically with outside steel concrete long column stake 1 corresponding parallel interval setting; Steel concrete joist 3, fixed with it at the top of the corresponding steel concrete long column stake 1 of each group, steel concrete stub 2; Along the reinforced concrete pavement 4 of roadbed longitudinal extension, build on each steel concrete joist 3.The vertical applied force that the utility model makes full use of steel concrete long column stake 1 and steel concrete stub 2 overcomes high gradient slope the long very long shortcoming of the big and required stake of roadbed bottom retaining structure horizontal distortion is set, and places with reinforced concrete pavement 4 and satisfies width of the subgrade surface and assurance subgrade stability on the steel concrete joist 3.

Steel concrete long column stake 1 bottom need be imbedded in the stable side slope rock-soil layer, to bear the vertical applied force of road bed.Anchor cable 5 bundle numbers and hole count are determined according to steel concrete long column stake 1 Calculation on stability.Vertical spacing distance is imbedded side slope rock stratum situation and stressed definite according to steel concrete long column stake 1, is generally positioned at the middle and upper part of steel concrete long column stake 1 exposure outside the rock stratum.

With reference to Fig. 1, the domatic soil nailing 6 that is provided with of the high gradient slope of described reinforced concrete pavement below 4 is to guarantee the slope stability of high gradient slope.Thereby guarantee that steel concrete long column stake 1 and the stressed of steel concrete stub 2 meet the demands.

Described reinforced concrete pavement 4 is provided with one place, shrinkage joint along the vertical every interval 15~20m of roadbed in steel concrete joist 3 centers.The filling of pitch plank is adopted at the shrinkage joint, and according to width of the subgrade surface, steel concrete road bed 4 can be along the horizontal framing setting of road bed, and the framing width should be advisable with 4~10m, and the filling of pitch plank is adopted at the shrinkage joint between the width of cloth and the width of cloth.

The utility model has solved high steep mountain area effectively and has built the width of subgrade deficiency and cause the problem of deep-cutting cutting and can not guarantee subgrade stability, the pier of avoiding constructing a bridge deep-cuts high steep cutting or high pier is striden greatly, construction technology is simple, can effectively save construction investment, and compliance with environmental protection requirements, have wide popularizing application prospect.

Some principles of the above this mountain area high gradient slope roadbed structure that just explains through diagrams, be not be the utility model to be confined to shown in and in described concrete structure and the scope of application, so every the corresponding modify and equivalent that might be utilized all belongs to the claim that the utility model is applied for.

Claims (4)

1. high gradient slope roadbed in mountain area is constructed, and it is characterized in that it comprises: steel concrete long column stake (1), place the high steep roadbed side slope outside, and be provided with along roadbed longitudinal separation, vertically be arranged at intervals with anchor cable (5) in the steel concrete long column stake (1) with the basement rock anchoring; Steel concrete stub (2) places high steep roadway excavation side slope inboard, along roadbed vertically with the corresponding parallel interval setting of outside steel concrete long column stake (1); Steel concrete joist (3), fixed with it at the top of the corresponding steel concrete long column stake (1) of each group, steel concrete stub (2); Along the reinforced concrete pavement (4) of roadbed longitudinal extension, build on each steel concrete joist (3).
2. mountain area as claimed in claim 1 high gradient slope roadbed structure, it is characterized in that: described steel concrete long column stake (1) bottom is imbedded in the stable side slope rock-soil layer.
3. mountain area as claimed in claim 1 high gradient slope roadbed structure is characterized in that: the domatic soil nailing (6) that is provided with of high gradient slope that described reinforced concrete pavement (4) are following.
4. mountain area as claimed in claim 1 high gradient slope roadbed structure, it is characterized in that: described reinforced concrete pavement (4) are provided with one place, shrinkage joint along the vertical every interval 15~20m of roadbed in steel concrete joist (3) center.
CN2011200747295U 2011-03-21 2011-03-21 High-steepness side slope subgrade structure for mountainous area CN201962558U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200747295U CN201962558U (en) 2011-03-21 2011-03-21 High-steepness side slope subgrade structure for mountainous area

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200747295U CN201962558U (en) 2011-03-21 2011-03-21 High-steepness side slope subgrade structure for mountainous area

Publications (1)

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CN201962558U true CN201962558U (en) 2011-09-07

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102146676A (en) * 2011-03-21 2011-08-10 中铁二院工程集团有限责任公司 High-steep side slope subgrade structure for mountain area
CN102505661A (en) * 2011-12-21 2012-06-20 杨梦云 Construction scheme of stone-piled foot protector of underwater bearing platform
CN103243724A (en) * 2013-05-22 2013-08-14 中铁二院工程集团有限责任公司 Bedding cutting high slope closing reinforcement structure
CN103321234A (en) * 2013-07-08 2013-09-25 中国水电顾问集团成都勘测设计研究院 Load-bearing structure built on high slope or geological complex area and constructing method thereof
CN103981891A (en) * 2014-05-29 2014-08-13 成都城电电力工程设计有限公司 Excavation foundation and construction method for same
CN106192652A (en) * 2016-08-31 2016-12-07 四川省交通运输厅交通勘察设计研究院 A kind of high steep embankment ruggedized construction preventing differential settlement
CN107574813A (en) * 2017-08-09 2018-01-12 贵州正业工程技术投资有限公司 The device and construction method of Soil-rock combined ground are passed through in a kind of karst area
CN109183542A (en) * 2018-07-26 2019-01-11 武汉大学 Run highway soft soil roadbed bumping at bridge-head lower clapboard processing method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102146676A (en) * 2011-03-21 2011-08-10 中铁二院工程集团有限责任公司 High-steep side slope subgrade structure for mountain area
CN102505661A (en) * 2011-12-21 2012-06-20 杨梦云 Construction scheme of stone-piled foot protector of underwater bearing platform
CN103243724A (en) * 2013-05-22 2013-08-14 中铁二院工程集团有限责任公司 Bedding cutting high slope closing reinforcement structure
CN103321234A (en) * 2013-07-08 2013-09-25 中国水电顾问集团成都勘测设计研究院 Load-bearing structure built on high slope or geological complex area and constructing method thereof
CN103321234B (en) * 2013-07-08 2015-06-03 中国电建集团成都勘测设计研究院有限公司 Constructing method of load-bearing structure built on high slope or geological complex area
CN103981891A (en) * 2014-05-29 2014-08-13 成都城电电力工程设计有限公司 Excavation foundation and construction method for same
CN103981891B (en) * 2014-05-29 2016-04-27 成都城电电力工程设计有限公司 The construction method of digging foundation and this digging foundation
CN106192652A (en) * 2016-08-31 2016-12-07 四川省交通运输厅交通勘察设计研究院 A kind of high steep embankment ruggedized construction preventing differential settlement
CN107574813A (en) * 2017-08-09 2018-01-12 贵州正业工程技术投资有限公司 The device and construction method of Soil-rock combined ground are passed through in a kind of karst area
CN109183542A (en) * 2018-07-26 2019-01-11 武汉大学 Run highway soft soil roadbed bumping at bridge-head lower clapboard processing method

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