Swell-shrink characteristic rock-soil cut slope protection method and structure

A technology for slopes and dirt roads, which is used in infrastructure engineering, excavation, sheet pile walls, etc., to achieve the effect of increasing slope stability, good environmental protection landscape, and strong integrity.

Active Publication Date: 2016-08-24
CCCC SECOND HIGHWAY CONSULTANTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies in the above-mentioned technical background, and is to provide a method for protecting the expansion-contraction rock-soil cutting slope, the method is simple, easy to use, and solves the reinforcement of the expansion-contraction rock-soil cutting slope Problems of protection, water repellency and waterproof and environmental protection landscape

Method used

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  • Swell-shrink characteristic rock-soil cut slope protection method and structure
  • Swell-shrink characteristic rock-soil cut slope protection method and structure
  • Swell-shrink characteristic rock-soil cut slope protection method and structure

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Embodiment 1

[0032] A method for protecting the slope of an expansive rock-soil cutting, the steps of which are:

[0033] a. Excavation side slope: According to the design slope ratio (1:1.0 or 1:1.25 or 1:1.50 or 1:1.75), excavate the cutting side slope in stages from top to bottom to level the slope surface.

[0034] b. Construction lofting: On the surface of slope body 1, according to the overall structure elevation diagram of a structure to protect the expansion and shrinkage rock-soil cutting slope, support seepage ditches, anchor rods, reinforced concrete frames, intercepting ditches, and toe walls, etc. Stakeout of the structural unit, at intervals of a certain distance (6m or 8m or 10m) along the longitudinal direction of the cutting slope, a supporting seepage ditch 2 stakeout line is arranged from the top to the bottom of the slope; the slope body 1 between the two supporting seepage ditch On the surface, arrange criss-crossing square mesh (grid spacing is 2m or 3m) reinforced co...

Embodiment 2

[0042] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0043] Such as Figure 1 to Figure 5 As shown, a structure for protecting the expansive rock-soil cutting slope, which consists of a cutting slope body 1, a supporting seepage ditch 2, a reinforced concrete frame beam 3, an anchor rod 4, a water intercepting ditch 5, and an inclined drainage ditch 6. The toe wall 7 is composed of soil spraying and grass planting 8, which is characterized in that: longitudinally along the cutting slope, every 6m or 8m or 10m. A supporting seepage ditch 2 is arranged on the surface of the slope body 1 from top to bottom, and the surface of the slope body 1 between every two supporting seepage ditch 2 is provided with criss-crossing reinforced concrete frame beams 3, and each intersection of the frame beams 3 is provided with a The roots are implanted into the anchor rod 4 of the slope body, and each frame beam 3 compartments a...

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Abstract

The invention discloses a swell-shrink characteristic rock-soil cut slope protection method and structure. The method comprises the steps of a, digging and leveling a cut slope according to a designed slope gradient; b, building support sewers on the surface of the slope body with rubble, gravel and mortar at certain intervals in the longitudinal direction of the cut slope; c, arranging anchor rods and reinforced concrete frame beams in a criss-cross mode on the portions, between every two support sewers, of the surface of the slope body; d, constructing catchwaters with mortar rubble on the top of the cut slope and a platform portion; e, drilling the slope body from the bottom of the cut slope, and implanting PVC inclined drain pipes; f, constructing a footwall with mortar rubble at the position of the slope toe; g, filling grillage chambers of the reinforced concrete frame beams with loam, and conducting soil spraying and grass planting. The structure is composed of the cut slope body, the support sewers, the reinforced concrete frame beams, the anchor rods, the catchwaters, the inclined drain pipes, the footwall and grass sowing by spraying. The method is simple, using is convenient, and the method and structure are suitable for reinforcement and protection of the swell-shrink characteristic rock-soil cut slope, water drainage and resistance and environment-friendly landscape.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to a method for protecting expansive rock-soil cutting slopes, and also relates to a structure for protecting expansive rock-soil cutting slopes, which is suitable for solving expansive soils, high Reinforcement and protection, drainage and waterproofing, and environmental protection landscape issues of expansion-contraction rock and soil cutting slopes such as liquid-limited soil, expansive rock, and soft rock. Background technique [0002] Expansion-contraction rock and soil, such as expansive soil, high liquid limit soil, expansive rock, soft rock, etc., are rich in hydrophilic clay minerals and are very sensitive to changes in environmental humidity and heat. softening characteristics. This type of cutting slope is prone to cracking, deformation, weathering, spalling and other diseases, and even serious accidents such as slipping, collapsing, and landslides. On...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20E02D5/76E02D19/02
CPCE02D5/76E02D17/20E02D19/02E02D2300/002
Inventor 张静波王云吴万平李云安何斌段亚茹张晶谢松林阮艳彬严东方袁亮
Owner CCCC SECOND HIGHWAY CONSULTANTS CO LTD
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