CN201433344Y - Composite protection structure for stabilizing road bed in mountain road - Google Patents
Composite protection structure for stabilizing road bed in mountain road Download PDFInfo
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- CN201433344Y CN201433344Y CN 200920033546 CN200920033546U CN201433344Y CN 201433344 Y CN201433344 Y CN 201433344Y CN 200920033546 CN200920033546 CN 200920033546 CN 200920033546 U CN200920033546 U CN 200920033546U CN 201433344 Y CN201433344 Y CN 201433344Y
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Abstract
The utility model discloses a composite protection structure for stabilizing road bed in mountain road, which is composed of two parts of laying a water discharging system and laying a retaining project. According to an implement sequence that the slope body is first and the road bed is secondary, the combined effect of retaining (which adopts anti-slipping pile, anchor cable frame, pile-slab walland counter pressure) and water discharging (which adopts water collection wall, oblique water discharging hole, PVC pipe and embedded metal below water discharging pipe). After field application, the structure has the advantages of reliable safety, rational investment and convenient maintenance, causes stabilized slippery slope and no deformation of the road bed, and ensures the road bed construction of line and operation safety.
Description
Technical field
The utility model belongs to the highway engineering technical field, is specifically related to a kind ofly build, at the stable road bed composite protection structure of building and plan to build mountain highway exhibition line district.
Background technology
Follow the paces of Chinese national economy fast development, various places infrastructure construction particularly highway engineering construction has obtained tremendous development.Highway construction at present entered by the Plain to mountain area deep transformation period, and in the Mountainous Highway Construction engineering, inevitably can run into the problem of highway exhibition line.So-called exhibition line utilizes favorable terrain exactly, open up long route artificially, route is wriggled from the foot of the hill in the gradient scope that allows gradually to the mountain top, in general, the exhibition line only appears at because of gradient restriction or meets under the situation of extreme terrain condition, exchanges alap ruling gradient for to sacrifice the straight degree of circuit.
Because the winding exhibition part of path of mountain highway is many at section of easy grade, this class gentle slope or be old landslide area, or be the bad location of geology (lithology weak or be the major rupture band), so excavate after the preloading yielding; The upper and lower circuit base of winding exhibition line highway has connection through one's female relatives closely simultaneously, and a dish unstability is caused for contiguous stability of respectively coiling roadbed and be had a strong impact on.Current, in western China, a large amount of sky way exhibition circuit base destabilization problems has appearred in Mountainous Highway Construction and the operation process, seriously restricted local transit and expanding economy.Also there is interactional problem in the stability of sky way exhibition circuit base between each dish, usually pull one hair and move the whole body, and the roadbed unstability of being coiled by the part causes the unstability of closing on dish even whole winding section roadbed.Will be when winding exhibition part of path by the highway section on old landslide, this phenomenon is just more obvious, and therefore, the stability study of exhibition circuit base just seems especially important for Mountainous Highway Construction.
The existing mountain highway subgrade stability protection conventional structures such as gutter, retaining wall that adopt more, these structures are not owing to consider the difference of exhibition circuit base and common roadbed, and ignored and opened up the complexity that the line district mostly is the geologic structure of geology defective region, caused very big difficulty for the enforcement engineering, during the circuit operation, suffer breaking-up in various degree, had a strong impact on highway construction and operation.Therefore, for mountain highway exhibition circuit base destabilization problems, need to propose safe and reliable, economic and practical and environmental new subgrade stability safeguard structure, this structure not only will comprise the stable safeguard procedures of roadbed body, the more important thing is the connection through one's female relatives that to consider to open up the circuit base, take all factors into consideration the double stability of exhibition line district's slope body and roadbed body.
Summary of the invention
In view of above-mentioned, the purpose of this utility model is to propose the stable road bed safeguard structure in a kind of mountain highway exhibition line district, in the hope of improving the present situation in complicated hard and dangerous mountain area exhibition line segment highway construction difficulty and frequently disconnected road of operation phase, improve exhibition circuit base stability, guarantee mountain highway construction and unimpeded operation smoothly.
The stable road bed safeguard structure in the mountain highway exhibition line district that the utility model proposes, stablizing safeguard structure and roadbed body by sloping body stablizes safeguard structure two parts and forms (implementing procedure is seen Fig. 1), this two parts safeguard structure is united and is constituted by a retaining and drainage system respectively again, and its concrete structural representation is seen Fig. 2.
The technical scheme that the utility model adopted is:
The stable road bed composite protection structure in a kind of mountain highway exhibition line district is characterized in that: laying and two parts of retaining engineering laying of comprising drainage system:
(1) laying of drainage system:
A. toe edge peripheral hardware catchwater, the inboard toe of roadbed and respectively establish a row below the roadbed and face upward oblique drain hole before the landslide;
B. establish collecting well along section comparatively gently and apart from roadbed center line 20-60m place in physical features, respectively establishing 3～5 layers, every layer in the collecting well is radial laying 5～9 holes and faces upward oblique sewer drainage hole, each collecting well is connected by Φ 130PVC gutter, drains into nature coombe or sloping external by the PVC gutter again;
C. roadbed both sides gutter adopts and imbeds Φ 1m wavy metal gutter, reserves spilled water hole and drain hole on the bellows, wraps up in geotextiles outward, and face of land infiltration effect is played with upper berth coarse gravel stone layer in the pipe top, substitutes roadside ditch.
(2) retaining engineering is laid:
Antislide pile and prestress anchorage cable frame combination structure are laid in body appropriate location, slope, form the one piling wall.
Above-mentioned antislide pile and prestress anchorage cable frame combination structure are to be made of rail, concrete, anchor cable, steel concrete top platform and inter-pile soil body.Concrete is gone in the hole rising pouring, rail is inserted in the hole, inject concrete in the hole, rail is integrally formed piling wall with geotechnical body around the stake hole by the concrete strong bonded, and stake is provided with reinforced concrete platform on the top, is provided with the anchor cable hole in the platform, anchor cable places in the anchor cable hole, slip casting in the anchor cable hole, tensioning fixation anchor cable, anchor head sealing off and covering anchorage.
The utility model has the advantages that:
(1) according to the enforcement order of roadbed behind the first sloping body, actual conditions in conjunction with sloping body and roadbed body, when sloping body and this body water content of roadbed are higher, should be based on drainage works, adopt collecting well, face upward oblique drain hole, the reasonable combination form of pvc pipe and flush type wavy metal gutter, after this safeguard procedures are implemented, along with the phreatic minimizing of sloping body, its stability improves gradually, but need the long cycle, slowly distortion still may continue to produce therebetween, therefore, it is more suitable that this safeguard procedures are combined in the low-grade highway, and high-grade highway then must take to prop up accordingly the retaining measure.Under other road conditions, should be based on retaining engineering, adopt antislide pile, anchor cable frame strengthening slope body, adopt stake reinforcing road bed body of board wall and roadbed side slope (particularly before cutting and embankment construction, examine calculation as far as possible and adopt the stake board wall to reinforce in advance), carry out the drainage works that cuts of domatic and roadbed body simultaneously.
(2) in the drainage system implementation process of sloping body and roadbed body, cut the unobstructed angle of draining from environmental protection and the sloping body of realization, roadbed body, should give full play to the good drain function of nature coombe and natural sod, should adopt collecting well simultaneously, face upward oblique drain hole and the combined mode of pvc pipe and come sloping body is implemented drainage works; Should adopt flush type wavy metal gutter and face upward near surface water and the underground water that mode that oblique drain hole combines solves the roadbed body and cut row's problem at exhibition line both sides of highway for the roadbed body.
The beneficial effect of advantage of the present utility model and generation: be to integrate a retaining and a draining double effect, the stable composite protection structure of implementing according to the order of roadbed behind the sloping body earlier of novel exhibition circuit base.This safeguard structure has been broken away from the limitation and the unicity of existing roadbed stability safeguard structure, and the stable safeguard structure of having given prominence to the key points is provided with the middle whole and local theory of coordinating mutually, reaches the purpose of the root that effects a permanent cure.This structure can consider to open up the influence of line district unfavorable geological condition well, at first props up retaining (antislide pile, anchor cable framework) and sloping body drainage system (facing upward oblique drain hole and collecting well) by sloping body is set, and guarantees to open up the stability of slope, line district body; Consider that simultaneously the upper and lower circuit base of winding exhibition line highway has connection through one's female relatives closely, prop up retaining (stake board wall) and subgrade drainage system (facing upward oblique drain hole, flush type wavy metal gutter), the stability of guaranteeing to open up line segment roadbed body by roadbed is set.The double stability of exhibition line district's slope body and roadbed body has been considered in this structure composition, is a kind of safe and reliable, economic and practical and environmental new subgrade stability safeguard structure.
Description of drawings
Fig. 1 is an implementing procedure of the present utility model.
Fig. 2 is generalized section of the present utility model (1 is hollow antislide pile in the accompanying drawing, and 2 is the anchor cable framework, and 3 is collecting well, and 4 is piling wall, and 5 for facing upward oblique drain hole (flexible porous tube), and 6 is flush type wavy metal gutter, and 7 is pvc pipe).
The specific embodiment
In order to verify the technical program feasibility, with unit cooperations such as Qinghai Province's highway construction administration offices, open up a plurality of highway sections such as line district, Li Jia gorge reservoir exhibition line district at exhibition line district, the wheat Xiushan Mountain, Qinghai, Long Muergou and take the lead in having carried out system test and research, obtained useful achievement.
Embodiment 1: the subgrade stability safeguard structure in high moisture sloping body exhibition line district
The A Sai of the Qinghai Province highway wheat Xiushan Mountain belongs to the high moisture sloping body in plateau, this district's ground water content height, and stable extreme difference, geotechnical body intensity is low, and highway subgrade easily produces deformation failure.This section 3# landslide is accumulation horizon landslide, and gliding mass can be divided into forward and backward two-stage.Route passes through with two Pan Lu exhibition line in the rear portion, landslide, the inboard lowland that forms of former route fills embankment.In highway subgrade disease management process, antislide pile is propped up retaining carried out Technological Economy than choosing with the measure of comprehensive white-out water, selected the measure of comprehensive white-out water to administer, the surface water supply of interception massif, the employing technology path is: when exhibition line district slope body rich groundwater, for preventing its adverse effect to sloping body long-time stability, comparatively mild and establish the collecting well 3 of 3-5 seat diameter 4-5m along section apart from roadbed center line 20-60m place in physical features, establish 3～5 layers in every collecting well, every layer is radial laying 5～9 holes and faces upward oblique sewer drainage hole, if face upward oblique drain hole 5 drainage underground water, import sloping body collecting well 3, each collecting well is connected by Φ 130PVC gutter, water is pooled in the collecting well of sloping body foot, roadbed both sides gutter adopts and imbeds Φ 1m wavy metal gutter 6, reserves spilled water hole and drain hole on the bellows, wrap up in geotextiles outward, face of land infiltration effect is played with upper berth coarse gravel stone layer in the pipe top, and underground water is discharged gliding mass the most at last.Reach and improved gliding mass stability and underlying strength, stable road bed purpose.This landslide control engineering was in completion in 2006, and it is big to administer back pvc pipe water yield, tended towards stability in the landslide, and roadbed does not have distortion, and regulation effect is more satisfactory.
Embodiment 2: the subgrade stability safeguard structure in loess exhibition line district
The Li Kan of Qinghai Province highway K8+000～K9+950 section is opened up the drum liter on No. 1 sliding mass, form seven Pan Lu altogether, and roadbed mostly is cutting (four to seven dishes) or half moat (one to three dish) form.In the highway reconstruction and expansion construction, the roadway excavation preloading, the shallow-layer gliding mass cuts near toe, causes landslide local buckling, and local roadbed cracking is wrong down, the distortion of last side slope many places slumping.For preventing its adverse effect to sloping body long-time stability, according to the distortion situation, go up in a Pan Lu and three Pan Lu that side slope is established anchor cable framework 2, five Pan Lu and the anchor cable antislide pile is established in six dish inboards, road, establish breast boards between stake, establish in the three dish road frameworks and face upward oblique drain hole 5.This section loess exhibition line district subgrade defect is administered more successful, and it is stable to administer the adverse grade body, and route is unimpeded.
Embodiment 3: the subgrade stability safeguard structure in plateau red beds exhibition line district
Highway is along Long Muergou thing two sides exhibition line for a long time in the west, and eastern bank is grown landslide, DH1～DH4-2 five places, and DH5, large-scale old landslide, DH6 two places are grown in the west bank, slides to Long Muergou or its Zhigou in the landslide, two sides.The DH1 landslide is larger, sliding being with about dark 15m, route passes through with two Pan Lu exhibition line from come down rear portion and postmedian, excavation is all less, the landslide outlet is near bottom of trench, and apart from about route 600m, slip distortion two portions of dish road bureau that cause in landslide form the outer destruction of moving, domatic mild between two dish roads, sloping body water content is big.Because the landslide scale is big, the whole very difficulty of administering, therefore, from guaranteeing that subgrade stability degree angle administers, prop up retaining in Liang Panlu arranged outside antislide pile 1 and anchor cable antislide pile, establish between stake and face upward oblique drain hole 5, underground water abundant in the sliding mass is discharged in the domatic gutter of establishing between two dish roads.It is to be made of rail, concrete, anchor cable, steel concrete top platform and inter-pile soil body that antislide pile and anchor cable antislide pile prop up the retaining combining structure, concrete is gone in the hole rising pouring, rail is inserted in the hole, injects concrete in the hole, and rail is integrally formed piling wall with geotechnical body around the stake hole by the concrete strong bonded, stake is provided with reinforced concrete platform on the top, be provided with the anchor cable hole in the platform, anchor cable places in the anchor cable hole, slip casting in the anchor cable hole, the tensioning fixation anchor cable, the anchor head sealing off and covering anchorage.In construction, consider to administer engineering and be located at the route outside, gliding mass is loose beyond the lower wall road, the culvert charge for remittance washes away and can have a negative impact to administering engineering, so cancelled two culverts in the DH1 scope, strengthen the gutter cross section, the culvert discharge of gutter charge for remittance in local gutter and beyond the DH1 landslide, administer engineering and obtained success, to guaranteeing the west unimpeded positive role of having brought into play of highway for a long time.
Claims (2)
1, a kind of mountain highway is opened up the stable road bed composite protection structure in line district, it is characterized in that: laying and two parts of retaining engineering laying by drainage system constitute:
(1) laying of drainage system:
A. toe edge peripheral hardware catchwater, the inboard toe of roadbed and respectively establish a row below the roadbed and face upward oblique drain hole (5) before the landslide;
B. establish collecting well (3) along section comparatively gently and apart from roadbed center line 20-60m place in physical features, respectively establishing 3～5 layers, every layer in the collecting well (3) is radial laying 5～9 holes and faces upward oblique sewer drainage hole, each collecting well is connected by PVC gutter (7), drains into nature coombe or sloping external by PVC gutter (7) again;
C. roadbed both sides gutter is imbedded wavy metal gutter (6), and bellows (6) is gone up and reserved spilled water hole and drain hole, wraps up in geotextiles outward, and the pipe top is with upper berth coarse gravel stone layer;
(2) retaining engineering is laid:
Antislide pile (1) and prestress anchorage cable framework (2) combining structure are laid in body appropriate location, slope, form one piling wall (4).
2, the stable road bed composite protection structure in a kind of mountain highway exhibition line according to claim 1 district, it is characterized in that: above-mentioned antislide pile (1) and prestress anchorage cable framework (2) combining structure are by rail, concrete, anchor cable, steel concrete top platform and inter-pile soil body constitute, concrete is gone in the hole rising pouring, rail is inserted in the hole, inject concrete in the hole, rail is integrally formed piling wall with geotechnical body around the stake hole by the concrete strong bonded, stake is provided with reinforced concrete platform on the top, be provided with the anchor cable hole in the platform, anchor cable places in the anchor cable hole, slip casting in the anchor cable hole, tensioning fixation anchor cable, anchor head sealing off and covering anchorage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200920033546 CN201433344Y (en) | 2009-06-07 | 2009-06-07 | Composite protection structure for stabilizing road bed in mountain road |
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| CN 200920033546 CN201433344Y (en) | 2009-06-07 | 2009-06-07 | Composite protection structure for stabilizing road bed in mountain road |
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| CN201433344Y true CN201433344Y (en) | 2010-03-31 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146651A (en) * | 2011-03-22 | 2011-08-10 | 重庆交通大学 | Reservoir area V-shaped gully highly-filled roadbed retaining structure and parameter determination method |
| CN103306293A (en) * | 2013-07-05 | 2013-09-18 | 中南大学 | Reinforcement structure and construction method for water-rich landslide |
| CN103643670A (en) * | 2013-12-16 | 2014-03-19 | 中铁西北科学研究院有限公司 | Self-adjusting type permafrost protecting device |
| CN104695303A (en) * | 2013-12-05 | 2015-06-10 | 上海勘测设计研究院 | Drainage system for mountain road |
| CN104775391A (en) * | 2014-09-26 | 2015-07-15 | 王恩厚 | Interception/convergence/drainage stable type slope debris flow preventing method |
| CN107142923A (en) * | 2017-05-25 | 2017-09-08 | 湖南科鑫电力设计有限公司 | Drainpipe and the method that side slope downslide is handled using the drainpipe |
| CN107269313A (en) * | 2016-04-09 | 2017-10-20 | 河南城建学院 | Gansu Black fang platform preventing land slide-tunnel cuts drainage system with what earth's surface was combined |
| CN107740399A (en) * | 2017-11-16 | 2018-02-27 | 中铁第四勘察设计院集团有限公司 | A kind of structure and its construction method for handling both wired karst slope type water damages |
| CN108660866A (en) * | 2018-06-10 | 2018-10-16 | 中铁二院工程集团有限责任公司 | A kind of talus slide area high-speed railway resistant slide deformation subgrade strengthening structure |
| CN109208619A (en) * | 2018-11-01 | 2019-01-15 | 重庆市交通规划勘察设计院 | Treatment method suitable for subgrade slope collapse |
| CN109914445A (en) * | 2019-04-11 | 2019-06-21 | 中铁第六勘察设计院集团有限公司 | A kind of level of ground water alternately changes the construction method of location expensive soil cutting |
| CN110438999A (en) * | 2019-07-30 | 2019-11-12 | 中国葛洲坝集团第一工程有限公司 | A kind of deep basal pit slope excavation construction method of rich groundwater |
| CN111549799A (en) * | 2020-04-02 | 2020-08-18 | 天津城建大学 | Comprehensive control system applied to gravel soil slope |
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2009
- 2009-06-07 CN CN 200920033546 patent/CN201433344Y/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146651A (en) * | 2011-03-22 | 2011-08-10 | 重庆交通大学 | Reservoir area V-shaped gully highly-filled roadbed retaining structure and parameter determination method |
| CN103306293A (en) * | 2013-07-05 | 2013-09-18 | 中南大学 | Reinforcement structure and construction method for water-rich landslide |
| CN104695303A (en) * | 2013-12-05 | 2015-06-10 | 上海勘测设计研究院 | Drainage system for mountain road |
| CN103643670A (en) * | 2013-12-16 | 2014-03-19 | 中铁西北科学研究院有限公司 | Self-adjusting type permafrost protecting device |
| CN103643670B (en) * | 2013-12-16 | 2015-06-17 | 中铁西北科学研究院有限公司 | Self-adjusting type permafrost protecting device |
| CN104775391A (en) * | 2014-09-26 | 2015-07-15 | 王恩厚 | Interception/convergence/drainage stable type slope debris flow preventing method |
| CN107269313A (en) * | 2016-04-09 | 2017-10-20 | 河南城建学院 | Gansu Black fang platform preventing land slide-tunnel cuts drainage system with what earth's surface was combined |
| CN107142923A (en) * | 2017-05-25 | 2017-09-08 | 湖南科鑫电力设计有限公司 | Drainpipe and the method that side slope downslide is handled using the drainpipe |
| CN107740399A (en) * | 2017-11-16 | 2018-02-27 | 中铁第四勘察设计院集团有限公司 | A kind of structure and its construction method for handling both wired karst slope type water damages |
| CN108660866A (en) * | 2018-06-10 | 2018-10-16 | 中铁二院工程集团有限责任公司 | A kind of talus slide area high-speed railway resistant slide deformation subgrade strengthening structure |
| CN108660866B (en) * | 2018-06-10 | 2024-01-05 | 中铁二院工程集团有限责任公司 | Anti-slip deformation roadbed reinforcing structure of high-speed railway in rock mass landslide area |
| CN109208619A (en) * | 2018-11-01 | 2019-01-15 | 重庆市交通规划勘察设计院 | Treatment method suitable for subgrade slope collapse |
| CN109914445A (en) * | 2019-04-11 | 2019-06-21 | 中铁第六勘察设计院集团有限公司 | A kind of level of ground water alternately changes the construction method of location expensive soil cutting |
| CN110438999A (en) * | 2019-07-30 | 2019-11-12 | 中国葛洲坝集团第一工程有限公司 | A kind of deep basal pit slope excavation construction method of rich groundwater |
| CN111549799A (en) * | 2020-04-02 | 2020-08-18 | 天津城建大学 | Comprehensive control system applied to gravel soil slope |
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Granted publication date: 20100331 Termination date: 20160607 |
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