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Method for recovering vegetation in rock-soil residue field

A technology of vegetation restoration and slag dumps, applied in botany equipment and methods, soilless cultivation, soil protection, etc., can solve problems such as manual filling, destruction of land resources, rapid seepage of slag heaps and difficulty in water retention, etc., to achieve guarantee Effects of Stable Matrix, Extensive Resources, Good Interface Transition and Connectivity

Inactive Publication Date: 2011-06-22
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its main feature is to use cohesive soil as the covering soil layer to realize the waterproof and water-retaining function in advance. However, due to the need to excavate a large amount of soil, the land resources must be destroyed, and manual filling is troublesome, which has not effectively solved the key technical problems of fast seepage and difficult water retention in the slag pile

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Its operating steps of the method for restoring vegetation in the rock and earth slag field of the present invention are:

[0017] 1) Remove unstable stones and sundries from the slag pile and maintain a certain degree of smoothness;

[0018] 2) Anchor into the slag heap with Φ16mm and L120cm threaded steel, arranged in a plum blossom pattern with a spacing of 1.2m×1.2m, and pour anchoring agent;

[0019] 3) preparing a plant fiber and bentonite compound, the proportion of which is rice straw fiber: bentonite = 1:10 in parts by weight. Among them, the length of rice fiber is 0.2-1cm, the fineness is 0.2-0.8mm, and the moisture content is 8%;

[0020] 4) Pave the compound obtained in step 3) on the surface of the slag heap, and compact it, with a compacted density of 2.0-2.4g / cm 3 ;

[0021] 5) Lay and hang galvanized wire mesh with 14# mesh hole 8×8cm along the slope, and fix it on the rebar with 22# binding wire;

[0022] 6) Prepare the seed matrix mixture, in part...

Embodiment 2

[0030] Its operating steps of the method for restoring vegetation in the rock and earth slag field of the present invention are:

[0031] 1) Remove unstable stones and sundries from the slag pile and maintain a certain degree of smoothness;

[0032] 2) Anchor into the slag heap with Φ14mm, L80cm threaded steel, arranged in a plum blossom pattern with a spacing of 1.2m×1.2m, and pour anchoring agent;

[0033] 3) Prepare plant fiber and bentonite composite, the mixing ratio of which is wood fiber: bentonite = 1:15 in parts by weight. Among them, the length of wood fiber is 0.4-0.8cm, the fineness is 0.5-1.2mm, and the moisture content is 7%;

[0034] 4) Pave the compound obtained in step 3) on the surface of the slag heap, and make it too compact, with a compacted density of 2.0-2.4g / cm 3 ;

[0035] 5) Lay and hang galvanized wire mesh with a specification of 14# and a mesh size of 8×8cm along the slope, and fix it on the rebar with 22# binding wire;

[0036]6) Prepare the s...

Embodiment 3

[0046] Its operating steps of the method for restoring vegetation in the rock and earth slag field of the present invention are:

[0047] 1) Remove unstable stones and sundries from the slag pile and maintain a certain degree of smoothness;

[0048] 2) Anchor into the slag heap with Φ18mm and L150cm threaded steel, arranged in a quincunx pattern with a spacing of 1.2m×1.2m, and pour anchoring agent;

[0049] 3) Prepare plant fiber and bentonite composite, its mixing ratio is natural coconut shell fiber: bentonite=1:6 by weight. Among them, the length of natural coconut shell fiber is 1.0-1.5cm, the fineness is 1.2-2.0mm, and the moisture content is 10%;

[0050] 4) Pave the compound obtained in step 3) on the surface of the slag heap, and compact it, with a compacted density of 2.0-2.4g / cm 3 ;

[0051] 5) Lay and hang galvanized wire mesh with a specification of 14# and a mesh size of 8×8cm along the slope, and fix it on the rebar with 22# binding wire;

[0052] 6) Prepare...

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Abstract

The invention provides a method for recovering vegetation in a rock-soil residue field, comprising the following steps: 1) removing unstable rocks and sundries on the residue stack and maintaining a certain degree of smoothness; 2) anchoring thread steel arranged in quincunx into the residue stack and pouring anchoring agents for fixation; 3) preparing a compound of vegetable fibers and bentonite; 4) paving the compound obtained in the step 3) on the surface of the residue stack and compacting the compound; 5) spreading and hanging galvanized wire meshes along the grade surface and binding the meshes with tie wires and fixing the meshes on the thread steel; 6) preparing seed matrix mixtures; 7) spraying the seed matrix mixtures; and 8) spreading and hanging non-woven fabrics and watering and managing the fabrics. The method features reasonable cost, simple construction technology, stable structure of the vegetation in the rock-soil residue field during recovery and good water retention, and can effectively recover the vegetation. The method is mainly used for recovering the vegetation in the rock-soil residue field.

Description

technical field [0001] The invention relates to a method for restoring vegetation in the fields of soil and water conservation and ecological environment construction, in particular to a method for restoring vegetation in rock and soil slag fields. Background technique [0002] Rock-soil slag field is a kind of wound accumulation inevitably produced in the construction of highways, railways, hydropower, mines and other basic projects. It is often in a critical state of instability due to disorderly accumulation of slag and loose structure. A large area of ​​water and soil erosion will be formed in the soil residue field, which seriously damages the ecology and even endangers public property and people's lives. [0003] Chinese patent CN 100350106C discloses a soil and water conservation and ecological restoration method for spoil field, which is characterized in that it adopts ecological restoration measures combining biological measures and engineering measures, uses vetive...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00E02D3/00A01G31/00
Inventor 龙凤杨涛孙海龙李绍才
Owner SICHUAN UNIV
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