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Arsenic sandstone slope treating method

A kind of sandstone and slope technology, which is applied in the fields of new-type sandstone slope management, soil and water conservation and ecological construction of sandstone, to achieve the effect of good vegetation growth and high construction efficiency

Inactive Publication Date: 2014-05-28
SOUTHEAST UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing consolidated materials have more or less defects in terms of durability, vegetation, economy, etc.

Method used

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  • Arsenic sandstone slope treating method
  • Arsenic sandstone slope treating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Excavate intercepting ditches 1-3m away from the edge of the top of the steep slope, and excavate fish scale pits 2m away from the intercepting ditch (away from the direction of the steep slope). Second, plant commonly used local economical drought-tolerant plants in the fish scale pit. Finally, the environment-friendly high-tech composite material W-OH with a concentration of 9-10% is sprayed on the rock and soil between the intercepting ditch and the slope cliff. Realize waterproof erosion, water interception and vegetation on the top of the slope.

[0041] (3) Steep slope treatment plan

[0042] In order to ensure the stability of the steep slope, the environment-friendly high-tech composite material W-OH with a concentration of 8-9% is sprayed on the surface of the steep slope to realize the waterproofing of the exposed layer of the steep slope.

[0043] (4) Moderate slope treatment plan

[0044]Sow grass seeds on moderate slopes and spray modified W-OH (a mixtur...

Embodiment 2

[0049] Excavate the intercepting ditch 1-3m away from the top edge of the steep slope, and excavate the fish scale pit 2m away from the intercepting ditch (away from the direction of the steep slope). Second, plant commonly used local economical drought-tolerant plants in the fish scale pit. Spray the environment-friendly high-tech composite material W-OH with a concentration of 14-15% on the rock and soil between the intercepting ditch and the slope cliff to achieve waterproof erosion and vegetation on the top of the slope.

[0050] (3) Steep slope treatment plan

[0051] In order to ensure the stability of the steep slope, the environment-friendly high-tech composite material W-OH with a concentration of 10% was sprayed on the surface of the steep slope to achieve the goal of waterproofing and water-proofing the exposed layer of the steep slope.

[0052] (4) Moderate slope treatment plan

[0053] On moderate slopes, plant 3 to 4 creepers and other climbing plants every 5m ...

Embodiment 3

[0060] First, excavate the intercepting ditch 1-3m away from the top edge of the steep slope, and excavate the fish scale pit 2m away from the intercepting ditch (away from the direction of the steep slope). Second, plant commonly used local economical drought-tolerant plants in the fish scale pit. Finally, spray hydrophilic polyurethane grout with a concentration of 9-10% (water holding rate ≥ 96%) on the intercepting ditch and the top of the steep slope to achieve waterproof erosion and vegetation on the top of the slope.

[0061] (4) Moderate slope treatment plan

[0062] Sow grass seeds on moderate slopes and spray hydrophilic polyurethane grout with a concentration of 6-7% (water holding rate ≥ 96%) to achieve grass growth on moderate slopes.

[0063] (5) Gentle slope and slope control plan

[0064] Excavate arbor planting pits (every 6m) on gentle slopes and plant mainly sea buckthorn and supplemented by Chinese pine. Sow grass seeds on gentle slopes and spray hydroph...

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Abstract

The invention discloses an arsenic sandstone slope treating method and mainly applies to conservation of water and soil, vegetation and stabilization treatment of the arsenic sandstone slope. The arsenic sandstone slope treating method includes a steep slope treatment process, a slope crest treatment process and a slope base treatment process. The slope treatment process includes excavating a catchwater at the position distant from the slope crest by 1-3m, and excavating fish-scale pits at the position of the catchwater distant from the abrupt slope by more 2m; spraying resin solution in 5-15% concentration onto rock soil between the catchwater and the top edge of the slope to form a water-resisting layer. The steep slope treatment process includes dividing the slope into a steep slope, a moderate slope and a gentle slope according to the gradient of the slope; spraying different concentrations of resin solution on the surface of the slope according to different slopes. The slope base treatment process includes spraying the resin solution in 3-5% concentration on the surface of the slope base to form a greening layer, and planting herbaceous plants and woody plants. Compared with the prior art, the arsenic sandstone slope treating method has the advantages of high efficiency and convenience in resin spraying and construction, stability in the slope after implementation and the like.

Description

technical field [0001] The invention relates to the technical field of environmental protection and ecological construction, in particular to a new type of sandstone slope treatment and a technology for soil and water conservation and ecological construction of the sandstone, belonging to the technical field of water and soil conservation. Background technique [0002] Arsenic sandstone is known as "the world's most soil erosion" and "environmental cancer", which is extremely harmful to nature, ecology and the environment. Widely distributed in the Yellow River Basin, the area centered on the border area of ​​Shanxi, Shaanxi and Mongolia. Specifically refers to the interbedded thick sandstone, sand shale and mudstone of the Paleozoic Permian, Mesozoic Triassic, Jurassic and Cretaceous, which is the core of the sand-producing area of ​​clastic bedrock concentrated in the Loess Plateau, which is the Yellow River An important part of the sandy and coarse sandy area of ​​the wa...

Claims

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Application Information

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IPC IPC(8): E02D17/20
Inventor 吴智仁杨若冲朱吉鹏杨才千姚文艺刘建勋汪忠明冷元宝髙卫民郜志勇杨小聪
Owner SOUTHEAST UNIV
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