CN206352301U - A kind of compound protective slope structure of reinforced earth draining - Google Patents

Abstract

The utility model is related to a kind of compound protective slope structure of reinforced earth draining, the protective slope structure is laid on the slope surface after excavating, the protective slope structure includes rubble drainage blanket, reinforcement soil layer and slope protection layer, the rubble drainage blanket is laid on slope surface, reinforced earth layer is set outside the rubble drainage blanket, and the slope protection layer is laid on the outside of reinforcement soil layer.Compared with prior art, the utility model has the advantages that simple in construction, cost economic, protection effect are notable.

Description

A kind of compound protective slope structure of reinforced earth draining

Technical field

The utility model is related to a kind of protective slope structure, and in particular to a kind of compound protective slope structure of reinforced earth draining, is applicable In the protection of the dilatancy slopes such as red clay.

Background technology

Admaic earth is a kind of common ground in Yunnan-guizhou Area, the characteristics of it has water-swellable, dehydration shrinkage.Admaic earth slope Body runs into the geological disaster that the weather such as heavy rain easily trigger heavy cut section, is also that Yunnan-guizhou Area deep vertical shaft is difficult to stable weight Want reason.And a kind of safeguard structure protected suitable for dilatancy slopes is developed, it is urgently to solve with geological hazard prevention Technical problem certainly.

The utility model discloses a kind of compound protective slope structure of reinforced earth draining, it uses a kind of Technique of soft support of full pair Unstability side slope carries out supporting file, and devises drainage channel for the characteristic of expansion red clay water-swellable, dehydration shrinkage deformation, and When row dredged underground water in massif and be domatic on surface water, and reinforcement soil layer also acted as between slopes and protective slope structure Cushion, reduce stress of the swelled ground to slope protection, it is ensured that stable slope, to expansion red clay area depth Cutting slope defending effect is notable.

Utility model content

For the shortcoming or deficiency of above-mentioned prior art, the technical problems to be solved in the utility model is to provide a kind of structure Simply, the significant compound protective slope structure of reinforced earth draining of cost economic, protection effect.

In order to solve the above technical problems, the utility model has following composition：

A kind of compound protective slope structure of reinforced earth draining, the protective slope structure is laid on the slope surface after excavating, described Protective slope structure includes rubble drainage blanket, reinforcement soil layer and slope protection layer, and the rubble drainage blanket is laid on slope surface, institute State and reinforced earth layer is set outside rubble drainage blanket, the slope protection layer is laid on the outside of reinforcement soil layer.

The ratio of slope of slopes after the excavation is not more than 1:1.5.

Slopes after the excavation set and set platform, the width of the platform between Slope with multi-step, the adjacent side slope Not less than 2m.

Slope surface after the excavation is step-like structure, and the height of the step-like structure is 0.5-1.5m, and its Depth-width ratio is not less than 1:1.5.

The reinforcement soil layer is laid according to step, and the laying width of reinforcement soil layer is not less than 2.5m.

The reinforcement soil layer uses volume ratio for 30% rubble soil material, and compacting rate is at least 90%, and uses geotechnological lattice Grid are reinforced.

The slope protection layer is provided with spilled water hole and drainpipe, and the spilled water hole is arranged on the surface of slope protection layer, The drainpipe is through spilled water hole and is inserted into reinforcement soil layer.

The top horizontal laying of the protective slope structure grouts chip architecture, the junction for grouting chip architecture and slope surface Provided with intercepting ditch.

The protective slope structure also includes toe wall construction, and the toe wall construction is fixedly mounted at the toe of slopes, institute State and be additionally provided with gutter outside toe wall construction.

Compared with prior art, the utility model has the following advantages that：

1）The utility model is using rubble drainage blanket, reinforcement soil layer and slope protection layer three-layer protection measure, structure letter List, cost economic, protection effect are notable；

2）Underground water, surface water and rainwater inside and outside rubble drainage blanket in the utility model, the effective white-out side slope of energy, Triggered potential safety hazard is deformed so as to avoid swelled ground；

3）Reinforcement soil layer in the utility model not only has bracing effect, also acts as slow between slopes and protective slope structure Layer is rushed, strengthens tension, shearing strength and the resistance to overturning of slopes；

4）Spilled water hole and drainpipe on slope protection layer are arranged in the utility model, can be timely and effectively to reinforced earth Current in layer are exported；

5）The utility model also using the ratio of slope for slowing down slopes, the platform widened between Slope with multi-step and reinforces toe etc. Measure, further enhances the protection effect of protective slope structure.

Brief description of the drawings

Fig. 1：The compound protective slope structure schematic diagram of the utility model reinforced earth draining.

Embodiment

The technique effect of design of the present utility model, concrete structure and generation is made furtherly below with reference to accompanying drawing It is bright, to be fully understood from the purpose of this utility model, feature and effect.

As shown in figure 1, the compound protective slope structure of the utility model reinforced earth draining, the protective slope structure 10 is arranged including rubble Water layer 11, reinforcement soil layer 12, slope protection layer 13 and toe wall construction 40.

The protective slope structure is laid on the slope surface after excavating, specifically, the rubble drainage blanket 11 is laid on slopes Surface, the rubble drainage blanket 11 is outer to set reinforced earth layer 12, and the slope protection layer 13 is laid on the outside of reinforcement soil layer 12. The toe wall construction 40 is fixedly mounted at the toe of slopes, and the toe wall construction 40, which mainly rises, strengthens fixation, institute State and be additionally provided with a gutter 50 outside toe wall construction 40.The utility model realizes flexible support skill using above-mentioned three-layer protection measure The implementation of art, simple in construction, cost economic, protection effect is notable.

The top horizontal of the protective slope structure 10 lays one layer and grouts chip architecture 14, described to grout chip architecture 15 and slopes table The junction in face is provided with intercepting ditch 30, and the chip architecture 14 that grouts mainly plays reinforcement fixation, and the intercepting ditch 30 can be temporarily Rainwater in the rainwater of the weather such as heavy rain, the intercepting ditch 30 etc. is stored constantly to be discharged by rubble drainage blanket.

The ratio of slope of slopes after the excavation is not more than 1:1.5, the slopes after the excavation set Slope with multi-step, the phase Platform 20 is set between adjacent side slope, and the width of the platform 20 is not less than 2m.Less slopes ratio of slope and wider plain stage of slope Design, further enhances and has consolidated the protection effect of protective slope structure.In the adjacent outermost slope protection layer 13 of side slope Between be additionally provided with platform intercepting ditch 21.

Slope surface after the excavation is step-like structure, and the height of the step-like structure is 0.5-1.5m, and its Depth-width ratio is not less than 1:1.5.The step-like structure is designed, it is possible to increase slope surface connects with protective slope structure medium stone waterproof layer 1 Contacting surface is accumulated, so as to increase frictional force between the two, protection effect is further enhanced.

The reinforcement soil layer 12 is laid by step；The reinforcement soil layer 12 use volume ratio for 30% native horsestone Material is compacted, and compacting rate is at least 90%, and is reinforced using GSZ, the laying width of the reinforcement soil layer 12 Not less than 2.5m.The two-way tension at least 50KN/m of reinforcement soil layer 12 after being reinforced through GSZ.The reinforcement soil layer 12 Do not only have bracing effect, also acts as the cushion between side slope and protective slope structure and further enhancing the tension of slopes, shearing resistance Intensity and resistance to overturning.

The slope protection layer 13 is provided with spilled water hole 132 and drainpipe 133, and the spilled water hole 132 is arranged on domatic anti- The surface of sheath 13, the drainpipe 133 is through spilled water hole 132 and is inserted into reinforcement soil layer 12, the spilled water hole 132 and row Water pipe 133 can be exported timely and effectively to the current in reinforcement soil layer 12.The spilled water hole 132 and drainpipe 133 are set Quantity and set location are put, appropriate increase or decrease can be carried out according to actual needs.

Specific implementation step is：

（1）Slope surface is excavated, the ratio of slope is not more than 1:1.5, the slopes after the excavation set Multi-edge A platform intercepting ditch 21 is reserved on the platform 20 for setting width to be not less than 2m between slope, the adjacent side slope, the platform 20；

（2）Stepped is excavated on slope surface slope, shoulder height is set to 0.5 ~ 1.5m, and its depth-width ratio is not less than 1： 1.5, step horizontal slope is outwards set, slope surface laying rubble drainage blanket 11, the rubble drainage blanket 11 and slopes bottom UNICOM, Can underground water in the white-out soil body by rubble drainage blanket 11；

（3）In the outside laying reinforcement soil layer 12 of above-mentioned rubble drainage blanket 11, the width of reinforcement soil layer 12 is not preferably less than 2.5m, the reinforcement soil layer 12 uses volume ratio for 30% rubble soil material, and is fully compacted（Compacting rate is at least 90%）Afterwards And reinforced with GSZ, the two-way tension at least 50KN/m of the reinforcement soil layer 12 after being reinforced through GSZ；

（4）After the reinforcement soil layer 12 that above-mentioned laying is completed, toe wall construction 40 is fixedly mounted at the toe of slopes, The outer reserved gutter 50 of the toe wall construction 40, then in the outside laying slope protection layer 13 of reinforcement soil layer 12, the slope Face overcoat 13 can prevent a large amount of rainwater from penetrating into side slope；

（5）According to actual amount of rainfall, spilled water hole 132 and drainpipe 133, the drainpipe are set on slope protection layer 13 133 pass through spilled water hole 132 and are inserted into reinforcement soil layer 12, and the spilled water hole 132 and drainpipe 133 are used cooperatively, can be timely The rainwater in the soil body is discharged, specifically, PVC drain pipe of the drainpipe 133 using a diameter of 80cm, length is preferably 1m, adjacent Drainpipe 133 set height spacing to be 2m；

（6）When it is implemented, the side slope is construction section per 30m, construction in layer from bottom to top.

The compound protective slope structure of the utility model reinforced earth draining, it is adaptable to the protection of the dilatancy slopes such as red clay, The protection of non-expansibility slopes is also applied for simultaneously.The utility model cost economic, reasonable in design, protection effect is good, with wide Wealthy market application foreground.

According to the teaching of the present embodiment, other the utility model protection models can be achieved in those skilled in the art completely Enclose interior technical scheme.

Claims (10)

1. a kind of compound protective slope structure of reinforced earth draining, the protective slope structure is laid on the slope surface after excavating, its feature It is, the protective slope structure（10）Including rubble drainage blanket（11）, reinforcement soil layer（12）And slope protection layer（13）, it is described broken Stone drainage blanket（11）It is laid on slope surface, the rubble drainage blanket（11）Outer setting reinforced earth layer（12）, the slope protection Layer（13）It is laid on reinforcement soil layer（12）Outside.

2. the compound protective slope structure of reinforced earth draining according to claim 1, it is characterised in that the slopes after the excavation Ratio of slope be not more than 1:1.5.

3. the compound protective slope structure of reinforced earth draining according to claim 1 or 2, it is characterised in that after the excavation Slopes set and set platform between Slope with multi-step, the adjacent side slope（20）, the platform（20）Width be not less than 2m.

4. the compound protective slope structure of reinforced earth draining according to claim 1 or 2, it is characterised in that after the excavation Slope surface is step-like structure, and the height of the step-like structure is 0.5-1.5m, and its depth-width ratio is not less than 1:1.5.

5. the compound protective slope structure of reinforced earth draining according to claim 1, it is characterised in that the reinforcement soil layer（12） Laid according to step, and reinforcement soil layer（12）Laying width be not less than 2.5m.

6. the compound protective slope structure of reinforced earth draining according to claim 1 or 5, it is characterised in that the reinforcement soil layer （12）Use volume ratio for 30% rubble soil material, and reinforced using GSZ.

7. the compound protective slope structure of reinforced earth draining according to claim 1, it is characterised in that the slope protection layer （13）It is provided with spilled water hole（132）And drainpipe（133）, the spilled water hole（132）It is arranged on slope protection layer（13）Surface, The drainpipe（133）Through spilled water hole（132）And it is inserted into reinforcement soil layer（12）In.

8. the compound protective slope structure of reinforced earth draining according to claim 1, it is characterised in that the protective slope structure（10） Top horizontal laying grout chip architecture（14）, it is described to grout chip architecture（14）Intercepting ditch is provided with the junction of slope surface （30）.

9. the compound protective slope structure of reinforced earth draining according to claim 1 or 8, it is characterised in that the protective slope structure （10）Also include toe wall construction（40）, the toe wall construction（40）It is fixedly mounted at the toe of slopes.

10. the compound protective slope structure of reinforced earth draining according to claim 9, it is characterised in that the toe wall construction （40）It is additionally provided with gutter outside（50）.