CN203403426U - Supporting structure of expensive earth road cutting side slope - Google Patents
Supporting structure of expensive earth road cutting side slope Download PDFInfo
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- CN203403426U CN203403426U CN201320490572.3U CN201320490572U CN203403426U CN 203403426 U CN203403426 U CN 203403426U CN 201320490572 U CN201320490572 U CN 201320490572U CN 203403426 U CN203403426 U CN 203403426U
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Abstract
The utility model relates to a supporting structure of an expensive earth road cutting side slope, in particular to the field of cutting side slope protecting of roads and railways in an expensive earth area. The supporting structure of the expensive earth road cutting side slope comprises a rigid supporting system, a flexible protecting system and a waterproof and drainage system. The rigid supporting system comprises a slope toe retaining wall and a retaining wall foundation which are arranged on the expensive earth road cutting side slope. The flexible supporting system comprises a lattice beam, an anchor rod, a flexible mesh geogrid and vegetation, wherein the lattice beam and the anchor rod are arranged on the expensive earth road cutting side slope, the flexible mesh geogrid is laid on a slope, and the vegetation is planted on the slope. The waterproof and drainage system comprises an intercepting drain or a drainage ditch which is formed in the top of the slope, a permeable layer behind the retaining wall, a drainage ditch and a drainage sewer below the drainage ditch. The flexible supporting system is used on the slope for protecting, compared with a rigid supporting method with a mortar rubble structure laid on the slope, the engineering cost is 20% lowered, the construction period is greatly shortened, expensive force generated when expensive earth is expended in the rain can be effectively released.
Description
Technical field
The utility model relates to a kind of Cut Slopes of Expansive Soil supporting and protection structure, especially a kind of highway of swelled ground area, railway cutting protection field.
Background technology
Expansive soil is mainly comprised of strongly hydrophilic clay mineral montmorillonite and illite, is a kind of high-ductility cohesive soil with expansion structure, many fissurities, strong swell-shrink characteristic and strength retrogression's property, is also typical unsaturated soil.It worldwide distributes is very widely, wherein in China, is mainly distributed in more than 20 province and municipalities such as Hubei, Shaanxi, Yunnan, Guangxi, Henan, mainly with remaining or the residual slide rock origin cause of formation is main.Expansive soil brings harm to the mankind's engineering activity, and its strength retrogression's characteristic causing because of water suction and dehydration repeated expansion and shrinkage distortion is to engineering services existence potential destruction for a long time.Highway in China, railway are subject to the situation of its harm very serious, and highway, the railway that passes through expansive soil has saying of " meeting moat to collapse, do not collapse without dike " unexpectedly.Since the 90's of 20th century, China starts to build on a large scale high-grade highway, newly construct a road through swelled ground area, the lateral unloading effect of cutting excavation causes the soil body to excavation free face dilatancy, imbibition in rainy season, dry season dehydration cracking and produce collapse and destroy very generally, Treatment of Expansive Soil Embankment embankment and structure based process are improper etc. all can form serious threat to the safety of engineering.Thereby Cut Slopes of Expansive Soil is stable has become with protection the problem that generally feels a delicacy about and cannot avoid in engineering practice.
By literature search, structure and form for the treatment of expansive soil slope are more, as changed, banket, expansive soil improvement, completely spread mortar rubble masonry pavement, toe retaining wall, slow down slope than measure and methods such as rear green side slope, slope protection of reinforcement soil, rainwater leakage preventions, but find from the investigation of engineering actual conditions, change and banket or conditioned soil will make construction costs increase, and the duration is longer; Completely spread not only high, the not environmental protection of cost of mortar flag stone, and after using by a period of time, there will be the arch camber of side slope slabstone to ftracture, the time one there is slump in long side slope; Use separately toe retaining wall structure can not effectively process expansive soil slope, reinforced earth bulkhead bank protection cost is too high.More above-mentioned processing methods are not processed according to the feature on expansive soil slope failure mechanism, landslide and expansive soil engineering properties, or processing method cost is too high, the duration is long.Therefore, seek a kind of expansive soil engineering properties of both having considered, in processing method, the means of defence of economy, environmental protection is a great problem of pendulum in face of numerous technician again.
Utility model content
In order to overcome above-mentioned defect, the purpose of this utility model is for the deficiencies in the prior art, provide a kind of simple in structure, site operation convenient, construction costs is cheap, environmental protection, meet Cut Slopes of Expansive Soil supporting and protection structure and the job practices thereof of expansive soil engineering properties.
To achieve these goals, the utility model adopts following technical scheme:
A supporting and protection structure, it comprises rigid support system, flexible protective system and waterproof and water drainage system three parts:
Described rigid support system is that it comprises and is arranged on the crippled retaining wall of Cut Slopes of Expansive Soil and retaining wall foundation;
It comprises described flexible support system the sash beam, the anchor pole that are arranged on Cut Slopes of Expansive Soil, is laid on the flexible netted geo-grid on domatic and is planted in the vegetation on domatic;
It comprises the draining sewer under pervious layer, gutter and the gutter being arranged on after the catchwater on slope top or gutter, retaining wall described waterproof and water drainage system.
The position of above-mentioned retaining wall substrate absolute altitude must surpass more than this region expansive soil body atmosphere affect degree of depth 0.5m, and the natural bearing capacity of substrate must be greater than 200kpa, retaining wall employing sheet stone concrete, and concrete intensity must be not less than C20.
More than its anchorage depth of described anchor pole must affect degree of depth 1m over this region expansive soil body atmosphere, bolt diameter is the indented bars that is not less than 16mm.
The internodal distance of described sash beam is 2.5-3.5m, and sash beam consists of steel concrete, and concrete strength label is C20.
It is the direction earthwork grille of 20cm*20cm or 30cm*30cm that described flexible netted geo-grid adopts size of mesh opening, every geo-grid adopts U-shaped draw-in groove to be connected and fixed, all geo-grid are linked to be to an integral body, make itself and sash anchor beam jointly form flexible supporting structure.
The bottom of trench in described catchwater or gutter is laid one deck waterproof geotextiles I.
The wall top of described retaining wall arranges the groove of inverted trapezoidal, and groove dimensions is dark 30-40cm, upper wide 40-50cm, and lower wide 30-40cm, at trench backfill planting soil, and plants winter jasmine shrub, plays the object of greening toe retaining wall.
In described retaining wall depths, bury tapping pipe underground, tapping pipe wraps up by permeable geotextiles in the one end by retaining wall, and the other end of tapping pipe is connected to draining sewer.
At described draining sewer, by waterproof geotextiles III, be laid on its expansive soil surface, in the middle of draining sewer, bury drain-hose underground, drain-hose wraps up by permeable geotextiles.
A kind of job practices of Cut Slopes of Expansive Soil supporting and protection structure:
(1) by slope ratio, carry out expansive soil cutting excavation, the thickness of reserved 30-50cm backfill planting soil;
(2) according to local expansive soil area Building technology standard, determine expansive soil climate influenced layer;
(3) excavation retaining wall substrate absolute altitude, to surpassing at least position of 1m of expansive soil climate influenced layer, is laid one deck waterproof geotextiles II on wall slope excavation face behind, then builds barricade concrete;
(4) when building barricade concrete, must in barricade, bury tapping pipe underground, tapping pipe adopts pvc pipe, the gradient 3%, tapping pipe need be with permeable geotextiles parcel, in order to avoid mud stops up by wall back of the body one end, after retaining wall form removal, the permeable gravel 20-30cm of backfill after wall, and compacting;
(5) on domatic, by sash girder connection, apart from 2.5-3.5m, carry out beam groove excavation, beam groove is of a size of the rectangular cross section of wide 20cm, dark 30cm, after beam groove excavates, lay flexible netted geo-grid, then place reinforcing cage, concreting, before concreting, must reserve at sash girder connection place bolthole;
(6) concrete when sash beam reaches after design strength, at reserved bolthole place vertical drilling, more than hole depth must be greater than expansive soil climate influenced layer 1m, then toward cement injection mortar in hole, in anchor pole patchhole, and fix with anchor plate and nut at termination point of anchor rod, then concreting seals anchor head;
(7) in side slope, back down and dig catchwater or gutter to design attitude absolute altitude, then lay one deck waterproof geotextiles I, in waterproof geotextiles I, build catchwater or gutter by laying bricks or stones;
(8) toward the thick planting soil of domatic upper backfill 30-50cm, on planting soil, plant vegetation: grass, shrub and arbor.
At toe, gravity retaining wall (retaining wall substrate absolute altitude must be arranged on over expansive soil climate influenced layer 0.5m more than) being set, is mainly to prevent that expansive soil from starting slump from toe as rigid support, by traction to top, slope future development; In domatic diamond lattice beam and the netted geo-grid of one deck of arranging, utilize anchor pole to be fixed in domatic upper (anchor pole palpus anchor is to surpassing expansive soil climate influenced layer at least more than 1m), then backfill planting soil, plantation is applicable to the vegetation of this region growing, form flexible support system, this system allows slope body to deform, and the expansion force producing while eliminating swell deformation of expansive soil encountered with water soil, reaches the effect of defeating a force with a tenderness.At Po Ding, the retaining wall back of the body, cutting gutter, Comprehensive Preventing dewatering installation is set, can drain in time delay ponding in domatic rainwater and slope body, add the effects such as evaporation, water conservation and protection against erosion of slope vegetation greening, thereby make slope volume expansion soil water content remain on the state of a relative equilibrium, maintain long-term slope stable.
Operating principle:
1. rigid support system.Mainly retaining wall, consist of, retaining wall adopts Gravity Retaining Wall, wall top width 50-80cm, wall body buried depth must surpass more than expansive soil climate influenced layer 0.5m, under the wall base, the natural bearing capacity of the soil body must be greater than 200kpa, and wall stature material adopts sheet stone concrete, and concrete strength adopts C20.Wall is backfill rubble pervious layer after one's death, the permeable bed thickness 20-30cm of rubble, the rubble pervious layer backfill degree of depth should be not less than expansive soil climate influenced layer, before backfill rubble pervious layer, must lay one deck waterproof geotextiles at the side slope surface of barricade excavation, barricade must be buried PVC gutter underground every 1-1.5m, to get rid of the occluded water in barricade rubble pervious layer.
2. flexible support system.Flexible support system is mainly comprised of sash beam, anchor pole, netted geo-grid, slope vegetation.First expansive soil slope is excavated than 1:1.75-1:2 according to slope, notice that brush slope is than many 50cm of design, because will reserve laying planting soil.Then according to the requirement excavation diamond lattice beam groove of design, the spacing of diamond lattice beam can be 2.5-3.5m, lattice beam is of a size of dark 30cm, wide 20cm, lattice beam adopts steel concrete, intensity can be designed as C20, it is 12-14cm that reinforcing bar adopts diameter, rebar spacing 10-15cm, and reinforcing bar connects can use iron wire colligation.After lattice beam groove excavates, with netted earth work grille net, along the netted geo-grid of whole domatic laying one deck, in lattice beam groove, also to lay, geo-grid adopts U-shaped to tip row connection in, and it is the direction earthwork grille of 20-30cm that geo-grid can adopt mesh size.When building lattice beam concrete, lattice beam Nodes must be reserved bolthole, can adopt pvc pipe, diameter 5cm, and pvc pipe should be vertically domatic pre-buried.Anchor pole adopts the indented bars of diameter 16cm, more than rock-bolt length must be greater than expansive soil climate influenced layer 1m, during anchor bolt construction, must treat that the intensity that lattice beam concrete reaches designing requirement carries out, auger or hidden hole drilling construction for bolthole, after pore-forming in bolthole pressure injection cement mortar, then by anchor pole patchhole, can prevent corrosion of anchor bolt like this.At lattice beam Nodes, anchor plate is set, with steel nut, anchor pole is tightened after fixing, with concrete, anchor head built to packing, prevent corrosion.After sash beam and anchor bolt construction, at domatic laying one deck planting soil (unexpansive soil), in planting soil, sow the grass seeds that is applicable to this region growing, after kind of grass planting survives, plantation is applicable to the shrub in this region, after shrub survives, plantation is applicable to the arbor of this region growing, so, herbaceous plant (root system can reach 20-30cm) can prevent that rain drop erosion is domatic, the flourishing root system of shrub (root system can reach 60-70cm) and arbor (root system can reach 100-150cm more than) can domaticly be fixed, reduce moisture evaporation in slope, maintain water balance in the body of slope, can effectively to domatic, protect, and afforest domatic, beautified the appearance of a street.
3. waterproof and water drainage system.This waterproof and water drainage system is mainly comprised of draining after Po Ding gutter, retaining wall, cutting gutter and sewer draining.Po Ding gutter is mainly interception and gets rid of the natural rainwater on top, slope, to prevent that rain drop erosion is domatic and to infiltrate in the body of slope.On slope, back down after drainage trenching, should at bottom of trench, lay one deck waterproof geotextiles in time, prevent that rainwater from infiltrating in the body of slope, then performs gutter in geotextiles.After retaining wall, draining is mainly to get rid of the rainwater flowing down on domatic, the seepage water in the body of slope etc.When retaining wall is excavated to design attitude, should be in time with waterproof geotextile laying at wall behind on face domatic, to prevent that the ponding that overland flow gets off from infiltrating to the body of slope.After retaining wall, drainage blanket can adopt the dank materials such as rubble or gravel.At retaining wall certain depth place, (this region expansive soil climate influenced layer), must bury tapping pipe at a certain distance underground, and tapping pipe can carry out pre-buried when retaining wall concreting with PVC material, and pvc pipe is buried underground certain gradient must be set, so that draining.Tapping pipe need wrap up by permeable geotextiles in the one end by retaining wall, in order to avoid earth blocking pipe, the other end of tapping pipe is connected to the draining sewer under gutter.Cutting gutter is mainly to get rid of the rainwater on road surface and the part surface water within the scope of cutting, and the sewer under gutter is mainly got rid of ponding, the ponding in the body of slope and the ponding in roadbed etc. after retaining wall.After by design excavation sewer, must be with waterproof geotextile laying the expansive soil surface after excavation, then in waterproof geotextiles, perform sewer, the ditch for seep rear block gutter of having constructed.The roadbed of advising cutting here preferably changes fills out the better soil of physical property (or expansive soil is carried out to improved treatment), then by waterproof geotextiles, together with the expansive soil surface of sewer bottom, lays, and has reached the effect of integral waterproofing.
The utility model compared with the prior art, has following advantage:
(1) slump of consideration expansive soil slope is mainly from toe, and then slowly upwards traction, therefore arranges retaining wall at toe and be very important;
(2) domatic employing flexible support system is protected, and with respect to the domatic rigid protection method that completely spreads mortar flag stone structure, construction costs is low more than 20%, and the duration will shorten many;
(3) flexible support system adopts lattice beam anchor pole to be combined with netted geo-grid, and netted geo-grid allows to produce a certain amount of distortion, can effectively discharge expansive soil and meet the expansion force producing when rainwater expands, thereby reach the object of defeating a force with a tenderness;
(4) because netted geo-grid grid is larger, can carry out easily the cultivation of various vegetation, not only can solidify side slope, keep soil body moisture, and can reach green side slope, beautify the object of the appearance of a street.
Accompanying drawing explanation
Fig. 1 is the utility model schematic cross-sectional view;
Fig. 2 is lattice beam Nodes anchor pole anchor head generalized section of the present utility model;
Fig. 3 is side slope sash beam anchor pole floor map of the present utility model;
Fig. 4 is retaining walls of the present utility model top structure section schematic diagram.
Wherein, 1-retaining wall; 2-sash beam; 3-anchor pole; 4-flexible netted geo-grid; 5-vegetation; 6-waterproof geotextiles I; 7-catchwater or gutter; Pervious layer after 8-retaining wall; 9-waterproof geotextiles II; 10-tapping pipe; 11-waterproof geotextiles III; 12-draining sewer; 13-drain-hose; 14-gutter; 15-nut; 16-anchor plate; 17-bolthole; 18-tapping pipe.
The specific embodiment
Below in conjunction with 1,2,3,4 pairs of the utility model of accompanying drawing, be elaborated:
A supporting and protection structure, it comprises rigid support system, flexible protective system and waterproof and water drainage system three parts,
Described rigid support system is that it comprises and is arranged on the crippled retaining wall 1 of Cut Slopes of Expansive Soil and retaining wall foundation;
It comprises described flexible support system the sash beam 2, the anchor pole 3 that are arranged on Cut Slopes of Expansive Soil, is laid on the flexible netted geo-grid 4 on domatic and is planted in the vegetation 5 on domatic; First expansive soil slope is excavated than 1:1.75-1:2 according to slope, notice that brush slope is than many 50cm of design, because will reserve laying planting soil.
It comprises the pervious layer 8 being arranged on after the catchwater on slope top or gutter 7, retaining wall, the draining sewer 12 under 14He gutter, gutter 14 described waterproof and water drainage system.
Catchwater or gutter 7 are mainly interceptions and get rid of the natural rainwater on top, slope, to prevent that rain drop erosion is domatic and to infiltrate in the body of slope.
Gutter 14 is mainly to get rid of the rainwater on road surface and the part surface water within the scope of cutting, main ponding, the ponding in the body of slope and the ponding in roadbed etc. of getting rid of after retaining wall 1 of draining sewer 12 under gutter.
The position of above-mentioned retaining wall 1 substrate absolute altitude must surpass more than this region expansive soil body atmosphere affect degree of depth 0.5m, and the natural bearing capacity of substrate must be greater than 200kpa, retaining wall 1 employing sheet stone concrete, and concrete intensity must be not less than C20.
More than described anchor pole 3 its anchorage depths must affect degree of depth 1m over this region expansive soil body atmosphere, bolt diameter is the indented bars that is not less than 16mm.
The internodal distance of described sash beam 2 is 2.5-3.5m, and sash beam 2 consists of steel concrete, and concrete strength label is C20.
It is the direction earthwork grille of 20cm*20cm or 30cm*30cm that described flexible netted geo-grid 4 adopts size of mesh opening, every geo-grid adopts U-shaped draw-in groove to be connected and fixed, all geo-grid are linked to be to an integral body, make itself and sash anchor beam jointly form flexible supporting structure.
The bottom of trench in described catchwater or gutter 7 is laid one deck waterproof geotextiles I 6.Prevent that rainwater from infiltrating in the body of slope, then performs catchwater or gutter 7 in waterproof geotextiles I 6.
The wall top of described retaining wall 1 arranges the groove of inverted trapezoidal, and groove dimensions is dark 30-40cm, upper wide 40-50cm, and lower wide 30-40cm, at trench backfill planting soil, and plants winter jasmine shrub, plays the object of greening toe retaining wall
Wall is backfill rubble pervious layer after one's death, the permeable bed thickness 20-30cm of rubble, the rubble pervious layer backfill degree of depth should be not less than expansive soil climate influenced layer, before backfill rubble pervious layer, must lay one deck waterproof geotextiles II 9 at the side slope surface of barricade excavation, to prevent that the ponding that overland flow gets off from infiltrating to the body of slope.
In described retaining wall 1 depths, bury tapping pipe 10 underground, tapping pipe 10 wraps up by permeable geotextiles in the one end by retaining wall 1, and the other end of tapping pipe 10 is connected to draining sewer 12.Barricade must be buried tapping pipe 10 underground every 1-1.5m, and to get rid of the occluded water in barricade rubble pervious layer, the gradient of tapping pipe is made as 3%.
At described draining sewer 12, by waterproof geotextiles III 11, be laid on its expansive soil surface, in the middle of draining sewer 12, bury drain-hose 13 underground, the permeable geotextiles parcel of drain-hose 13 use.
Concrete implementation step is as follows:
(1) by slope ratio, carry out expansive soil cutting excavation, the thickness of reserved 30-50cm backfill planting soil;
(2) according to local expansive soil area Building technology standard, determine expansive soil climate influenced layer;
(3) excavation retaining wall substrate absolute altitude, to surpassing at least position of 0.5m of expansive soil climate influenced layer, is laid one deck waterproof geotextiles in wall side slope behind, then builds barricade concrete;
(4) when building barricade concrete, must in barricade, bury tapping pipe 10 underground, tapping pipe 10 adopts pvc pipe, the gradient 3%, tapping pipe 10 need be with permeable geotextiles parcel, in order to avoid mud stops up by wall back of the body one end, after retaining wall 1 form removal, the permeable gravel 20-30cm of backfill after wall, and compacting; Tapping pipe 10 is buried underground certain gradient must be set, so that draining;
(5) on domatic, by sash beam 2 nodal distance 2.5-3.5m, carry out beam groove excavation, beam groove is of a size of the rectangular cross section of wide 20cm, dark 30cm, after beam groove excavates, lay flexible netted geo-grid 4, then place reinforcing cage, concreting, before concreting, must be at the reserved bolthole 17 of sash beam 2 Nodes;
(6) concrete when sash beam 2 reaches after design strength, at reserved bolthole place vertical drilling, more than hole depth must be greater than expansive soil climate influenced layer 1m, then toward cement injection mortar in hole, in anchor pole 3 patchholes, and fixing with anchor plate 16 and nut 15 in anchor pole 3 terminations, then concreting seals anchor head;
With concrete, anchor head is built to packing, prevent corrosion.After sash beam and anchor bolt construction, at domatic laying one deck planting soil (unexpansive soil), in planting soil, sow the grass seeds that is applicable to this region growing, after kind of grass planting survives, plantation is applicable to the shrub in this region, after shrub survives, plantation is applicable to the arbor of this region growing, so, herbaceous plant (root system can reach 20-30cm) can prevent that rain drop erosion is domatic, the flourishing root system of shrub (root system can reach 60-70cm) and arbor (root system can reach 100-150cm more than) can domaticly be fixed, reduce moisture evaporation in slope, maintain water balance in the body of slope, can effectively to domatic, protect, and afforest domatic, beautified the appearance of a street,
(7) in side slope, back down and dig catchwater or gutter 7 to design attitude absolute altitude, then lay one deck waterproof geotextiles I 6, in waterproof geotextiles I 6, build catchwater or gutter 7 by laying bricks or stones;
(8) toward the thick planting soil of domatic upper backfill 30-50cm, on planting soil, plant vegetation 5: grass, shrub and arbor.
In step (5), the rebar spacing of reinforcing cage is 10-15cm.
The pvc pipe that bolthole 17 is 5cm for diameter in step (5).
After having constructed, builds by draining sewer 12 gutter 14.The roadbed of advising cutting here preferably changes fills out the better soil of physical property (or expansive soil is carried out to improved treatment), then by waterproof geotextiles, together with the expansive soil surface of draining sewer 12 bottoms, lays, and has reached the effect of integral waterproofing.
Claims (9)
1. a Cut Slopes of Expansive Soil supporting and protection structure, it comprises rigid support system, flexible protective system and waterproof and water drainage system three parts, it is characterized in that:
Described rigid support system is that it comprises and is arranged on the crippled retaining wall of Cut Slopes of Expansive Soil (1) and retaining wall foundation;
It comprises described flexible support system the sash beam (2), the anchor pole (3) that are arranged on Cut Slopes of Expansive Soil, is laid on the flexible netted geo-grid (4) on domatic and is planted in the vegetation (5) on domatic;
It comprises the pervious layer (8) being arranged on after the catchwater on slope top or gutter (7), retaining wall, the draining sewer (12) under gutter (14) and gutter (14) described waterproof and water drainage system.
2. Cut Slopes of Expansive Soil supporting and protection structure according to claim 1, the position of above-mentioned retaining wall (1) substrate absolute altitude it is characterized in that: more than must affect degree of depth 0.5m over this region expansive soil body atmosphere, and the natural bearing capacity of substrate must be greater than 200kpa, retaining wall (1) adopts sheet stone concrete, and concrete intensity must be not less than C20.
3. Cut Slopes of Expansive Soil supporting and protection structure according to claim 1, is characterized in that: more than its anchorage depth of described anchor pole (3) must affect degree of depth 1m over this region expansive soil body atmosphere, bolt diameter is the indented bars that is not less than 16mm.
4. Cut Slopes of Expansive Soil supporting and protection structure according to claim 1, is characterized in that: the internodal distance of described sash beam (2) is 2.5-3.5m, and sash beam (2) consists of steel concrete, and concrete strength label is C20.
5. Cut Slopes of Expansive Soil supporting and protection structure according to claim 1, it is characterized in that: it is the direction earthwork grille of 20cm*20cm or 30cm*30cm that described flexible netted geo-grid (4) adopts size of mesh opening, every geo-grid adopts U-shaped draw-in groove to be connected and fixed, all geo-grid are linked to be to an integral body, make itself and sash anchor beam jointly form flexible supporting structure.
6. Cut Slopes of Expansive Soil supporting and protection structure according to claim 1, is characterized in that: the bottom of trench of described catchwater or gutter (7) is laid one deck waterproof geotextiles I (6).
7. Cut Slopes of Expansive Soil supporting and protection structure according to claim 1, is characterized in that: the wall top of described retaining wall (1) arranges the groove of inverted trapezoidal, and groove dimensions is dark 30-40cm, upper wide 40-50cm, lower wide 30-40cm.
8. Cut Slopes of Expansive Soil supporting and protection structure according to claim 1, it is characterized in that: in described retaining wall (1) depths, bury tapping pipe (10) underground, tapping pipe (10) wraps up by permeable geotextiles in the one end by retaining wall (1), and the other end of tapping pipe (10) is connected to draining sewer (12).
9. Cut Slopes of Expansive Soil supporting and protection structure according to claim 1, it is characterized in that: at described draining sewer (12), by waterproof geotextiles III (11), be laid on its expansive soil surface, in the middle of draining sewer (12), bury drain-hose (13) underground, drain-hose (13) wraps up by permeable geotextiles.
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| CN104264694A (en) * | 2014-09-29 | 2015-01-07 | 南京赛伯通建筑工程有限公司 | Expansive soil slope and construction method |
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| CN107034900A (en) * | 2016-02-03 | 2017-08-11 | 中国科学院寒区旱区环境与工程研究所 | A kind of thaw slumping frozen soil side slope disease management structure |
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| CN108755708A (en) * | 2018-05-07 | 2018-11-06 | 安徽省公路桥梁工程有限公司 | A kind of Soft Rock Slope ecological protection construction method |
| CN110735437A (en) * | 2019-10-10 | 2020-01-31 | 中国人民解放***箭军工程大学 | side slope combined protection structure |
| CN111691438A (en) * | 2020-06-22 | 2020-09-22 | 河北工业大学 | Anti-skidding-drainage comprehensive treatment method for landslide of large-scale accumulation body |
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| CN104153376A (en) * | 2013-05-15 | 2014-11-19 | 青岛天力建筑加固工程有限公司 | Balance weight type slope protector |
| CN103410159B (en) * | 2013-08-13 | 2015-07-15 | 南昌工程学院 | Expansive soil cut slope support structure and construction method thereof |
| CN103410159A (en) * | 2013-08-13 | 2013-11-27 | 南昌工程学院 | Expansive soil cut slope support structure and construction method thereof |
| CN104264694B (en) * | 2014-09-29 | 2016-08-17 | 南京赛伯通建筑工程有限公司 | A kind of expansive soil slope and construction method |
| CN104264694A (en) * | 2014-09-29 | 2015-01-07 | 南京赛伯通建筑工程有限公司 | Expansive soil slope and construction method |
| CN104532857A (en) * | 2014-12-24 | 2015-04-22 | 中铁二院工程集团有限责任公司 | Flexible expansion reduced ecological slope protection construction |
| CN105525627B (en) * | 2016-01-29 | 2017-06-09 | 中冶集团武汉勘察研究院有限公司 | A kind of two-way anchor fixed board retaining wall and its construction method |
| CN105525627A (en) * | 2016-01-29 | 2016-04-27 | 中冶集团武汉勘察研究院有限公司 | Two-way anchorage plate retaining wall and construction method thereof |
| CN107034900B (en) * | 2016-02-03 | 2020-11-03 | 中国科学院西北生态环境资源研究院 | Structure is administered to frozen soil side slope disease of slumping of hot melt |
| CN107034900A (en) * | 2016-02-03 | 2017-08-11 | 中国科学院寒区旱区环境与工程研究所 | A kind of thaw slumping frozen soil side slope disease management structure |
| CN105887898A (en) * | 2016-06-07 | 2016-08-24 | 中交第二公路勘察设计研究院有限公司 | Swell-shrink characteristic rock-soil cut slope protection method and structure |
| CN105887898B (en) * | 2016-06-07 | 2017-11-03 | 中交第二公路勘察设计研究院有限公司 | A kind of method and structure of protection swell-shrink characteristic ground cut slope |
| CN106088113A (en) * | 2016-06-30 | 2016-11-09 | 河海大学 | A kind of expansive soil slope reinforcement means |
| CN106400643A (en) * | 2016-11-11 | 2017-02-15 | 合肥工业大学 | High polymer grouting reinforcement and water prevention three-dimensional protective structure for cutting |
| CN107178043A (en) * | 2017-06-05 | 2017-09-19 | 长沙理工大学 | A kind of coarse-grained soil high-fill roadbed discharge structure and its construction technology |
| CN107268532A (en) * | 2017-07-14 | 2017-10-20 | 河海大学 | A kind of plateau pastoral area ecological revetment |
| CN107268532B (en) * | 2017-07-14 | 2019-10-22 | 河海大学 | A kind of plateau pastoral area ecological slope protection |
| CN108755708A (en) * | 2018-05-07 | 2018-11-06 | 安徽省公路桥梁工程有限公司 | A kind of Soft Rock Slope ecological protection construction method |
| CN110735437A (en) * | 2019-10-10 | 2020-01-31 | 中国人民解放***箭军工程大学 | side slope combined protection structure |
| CN111691438A (en) * | 2020-06-22 | 2020-09-22 | 河北工业大学 | Anti-skidding-drainage comprehensive treatment method for landslide of large-scale accumulation body |
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