Construction method of anti-sand dust biological film in arid area

A construction method and regional technology, applied in soil protection, infrastructure engineering, construction, etc., can solve problems such as inapplicability, achieve the effects of reducing dependence, ensuring curing quality, and facilitating later maintenance

Active Publication Date: 2020-05-22
重庆大学建筑规划设计研究总院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing methods are not suitable for sand fixation in deserts far away from oases because sand fixation requires continuous water supply.

Method used

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  • Construction method of anti-sand dust biological film in arid area
  • Construction method of anti-sand dust biological film in arid area
  • Construction method of anti-sand dust biological film in arid area

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A construction method for anti-sand dust biological film in arid areas, characterized in that it comprises the following steps:

[0043] 1) if figure 1 As shown, the area to be processed is divided into four rectangular blocks;

[0044] 2) Select according to the size of block ① figure 2 The size of the water retention membrane shown is 1m 2 ; And configure sand-fixing agent;

[0045] The water-retaining film includes an upper layer and a lower layer. The upper layer of the water-retaining film is an impermeable film, and the lower layer is a water-absorbing layer made of water-absorbing fibers.

[0046] The raw materials of the sand-fixing agent include urea, calcium chloride solution and concentrated Bacillus pasteurian cell liquid;

[0047] The OD of described concentrated Bacillus pasteurian cell liquid 600 value is 8;

[0048] The configuration process of described sand-fixing agent is:

[0049] 2.1) Dissolve 330g of calcium chloride per liter of water and ...

Embodiment 2

[0066] A construction method for anti-sand dust biological film in arid areas, characterized in that it comprises the following steps:

[0067] 1) The area to be processed is divided into blocks with a length of 1.75 meters and a width of 1.5 meters;

[0068]2) According to the size of the block, the size of the water-retaining membrane is selected to be 2m in length and 2m in width; and sand-fixing agent is configured;

[0069] The water-retaining film includes an upper layer and a lower layer. The upper layer of the water-retaining film is an impermeable film, and the lower layer is a water-absorbing layer made of water-absorbing fibers.

[0070] The raw materials of the sand-fixing agent include urea, calcium chloride solution and concentrated Bacillus pasteurian cell liquid;

[0071] The OD of described concentrated Bacillus pasteurian cell liquid 600 value is 5;

[0072] The configuration process of described sand-fixing agent is:

[0073] 2.1) Dissolve 220g of calciu...

Embodiment 3

[0089] A construction method for anti-sand dust biological film in arid areas, characterized in that it comprises the following steps:

[0090] 1) Divide the area to be processed into blocks according to the size of 1.5m×1.5m;

[0091] 2) According to the size of the block, the size of the water-retaining membrane is selected to be 2m in length and 2m in width; and sand-fixing agent is configured;

[0092] The water-retaining film includes an upper layer and a lower layer. The upper layer of the water-retaining film is an impermeable film, and the lower layer is a water-absorbing layer made of water-absorbing fibers.

[0093] The raw materials of the sand-fixing agent include urea, calcium chloride solution and concentrated Bacillus pasteurian cell liquid;

[0094] The OD value of described concentrated Bacillus pasteurian cell fluid is 2;

[0095] The configuration process of described sand-fixing agent is:

[0096] 2.1) Dissolve 220g of calcium chloride per liter of water...

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Abstract

The invention discloses a construction method of a biological coating for sand and dust prevention in arid areas. The construction method comprises the following steps that (1), an area to be processed is divided into a plurality of blocks; (2), the size of water retaining films is selected according to the size of the divided blocks, and sand fixation agents are configured; (3), the configured sand fixation agents in the step (2) are sprayed on the block to be treated within 30-180min; (4), the area to be treated which is sprayed with the sand fixation agents is covered with a water retainingfilm; and soil to be treated is pressed on the periphery of the water retaining film for fixation; (5), after 4-24 hours of reaction, the water retaining film is taken out and water in the water retaining film is recovered; (6), the recovered water in the step (5) is used for configuring the sand fixation agents; (7) the steps (3)-(5) are repeated multiple times until the surface to be treated forms a coating with the required strength, and the construction of the treatment block is completed; and (8), the steps (3)-(7) are repeated for the construction of the next block until the construction of all blocks are completed.

Description

technical field [0001] The invention relates to the technical field of wind and sand control, in particular to a construction method for sand and dust prevention biological coating in arid areas. Background technique [0002] Arid areas account for about 30% of the world's land area, and deserts account for more than 60% of the arid areas. Due to the lack of precipitation, most of the arid areas are inaccessible and desolate. Sandstorms, long sunshine hours, and large temperature differences between day and night are the most important features of arid regions. [0003] Yet drylands are a treasure trove of energy. The desert is rich in wind energy, solar energy and thermal energy, and many areas also contain fossil energy such as oil and natural gas. The Central Asian Corridor is an arid zone, which is a difficult point in infrastructure construction. Sand control actions to prevent desertification in arid areas and restore deserts have important economic value and inter...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D3/00E02D3/12
CPCE02D3/00E02D3/12
Inventor 肖杨何想刘汉龙肖鹏汪杨陈辉
Owner 重庆大学建筑规划设计研究总院有限公司
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