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A method and structure for protecting expansive rock-soil cutting slopes

A slope expansion and contraction technology, applied in the direction of foundation structure engineering, excavation, sheet pile wall, etc., to achieve strong integrity, good environmental protection landscape, and improve the effect of slope stability

Active Publication Date: 2017-11-03
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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  • A method and structure for protecting expansive rock-soil cutting slopes
  • A method and structure for protecting expansive rock-soil cutting slopes
  • A method and structure for protecting expansive rock-soil cutting slopes

Examples

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Embodiment 1

[0033] A method for protecting a swell-shrinkable rock-soil road cutting slope, the steps of which are:

[0034] a. Excavation slope: according to the design slope ratio (1:1.0 or 1:1.25 or 1:1.50 or 1:1.75), the cutting slope is excavated from top to bottom and the slope is leveled;

[0035] b. Construction stakeout: on the surface of the slope body 1, according to the overall structural elevation of a structure that protects the expansion and contraction of the rock and soil cutting slope Structural units shall be staked out during construction, and at certain distances (distance is 6m or 8m or 10m) in the longitudinal direction of the cutting slope, a supporting seepage ditch 2 shall be laid out from the top of the slope to the bottom of the slope; the slope body 1 between the two support seepage ditch 2 On the surface, arrange the 3 stakeout lines of reinforced concrete frame beams 3 in crisscross square mesh (the grid spacing is 2m or 3m); arrange the anchor rod 4 stakeou...

Embodiment 2

[0043] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0044] like 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 reinforced concrete frame beams 3 An anchor rod 4 implanted in the slope body is provided, soil is cultivated indoors in 3 compartments of ea...

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Abstract

The invention discloses a method and a structure for protecting expansive rock-soil cutting slopes. The steps include: a. Excavating and leveling the cutting slope according to the designed slope rate; b. On the surface of the slope, build a support seepage ditch with flakes, gravel, and mortar; c. Arrange criss-cross anchor rods + reinforced concrete frame beams on the slope surface between the two support seepage ditch; d. Use them on the slope top and platform The intercepting ditch is built by masonry masonry with rubble stones; e. Drill holes into the slope body at the bottom of the slope and implant PVC inclined drainage pipes; f. Build the toe wall with mortar rubble stones at the foot of the slope; g. The cells were filled with loam and sprayed with soil to plant grass. The structure is composed of cutting side slope slope, supporting seepage ditch, reinforced concrete frame beam, anchor rod, intercepting ditch, inclined drainage ditch, foot protection wall and guest soil spraying and planting grass. The method is simple and easy to use, and is suitable for solving Reinforcement and protection, drainage and waterproofing, and environmental protection landscape issues of expansive rock-soil cutting slopes.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to a method for protecting the swell-shrinkable rock-soil road cutting slope, and also relates to a structure for protecting the swell-shrinkable rock-soil road cutting slope, which is suitable for solving expansive soil, high Reinforcement protection, hydrophobicity and waterproofing, and environmental protection landscape issues of expansive and shrinkable rock and soil cutting slopes such as liquid-limited soil, expansive rock, and soft rock. technical background [0002] Swelling and shrinking 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 and other characteristics. Such cutting slopes are prone to cracking, deformation, weathering, spalling and other diseases, and even serious accidents such as s...

Claims

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Application Information

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Patent Type & Authority Patents(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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