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Soil coagulating agent and its preparation method and application in fixing sand

A coagulant and soil technology, applied in soil protection, infrastructure engineering, construction, etc.

Inactive Publication Date: 2005-03-09
罗俊宝
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But both approaches also have inherent limitations

Method used

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  • Soil coagulating agent and its preparation method and application in fixing sand
  • Soil coagulating agent and its preparation method and application in fixing sand

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0036] Embodiment 2, the preparation method of soil coagulant is the same as embodiment 1. Spray the soil coagulant with a concentration of 30% and 40% evenly on the model sand table of the grid sand barrier of 10×10cm and 15×15cm, place it on a slope of 30-40 degrees, and observe the amount of sand accumulation Condition

[0037] Soil Coagulant Concentration

[0038] It can be seen from Table 4 that on a slope of 30-40 degrees, the soil coagulant can resist wind and sand erosion in the consolidated sand layer, and a grid barrier of 15×15cm can play a very good role.

Embodiment 3

[0039] Embodiment 3, the present invention adopts natural soaking or consolidation compaction to measure soil coagulant compressive strength and shear force

[0040] The preparation method of the soil coagulant is the same as in Example 1.

[0041] ①Natural penetration

[0042] Three ring cutters with a diameter of 6.18cm and a height of 2cm and a sample preparation device with a diameter of 3.91cm and a height of 8cm are filled with sand. The specific gravity of the quicksand used in the test is 2.69-2.70, the particle distribution is 0.05-0.5mm, and the internal friction angle is 30-400 , Cohesion 0-9.4kpa. Use a watering can to spray 20%, 30%, and 40% soil coagulant on the sand surface, soak the sand sample naturally until the soil coagulant seeps out from the bottom of the ring knife, and then fill the sand so that the sand is higher than the ring knife surface , and then spray a little soil coagulant, after solidification, flatten the surface of the sample, take out the...

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Abstract

A soil coagulant for preventing sand from moving is prepared from PVA, (NH2)2CO, (NH4)2SO4, propanetriol and water through heating water to 50 deg.C, slowly adding PVA while stirring until the temp is 80 deg.C, sequentially adding others while stirring, and laying aside.

Description

technical field [0001] The invention relates to a soil coagulant, its preparation method and its application in sand fixation. technical background [0002] There are three ways to fix quicksand, namely plant sand fixation, mechanical sand barrier sand fixation and chemical sand fixation. At present, the first two sand-fixing methods have been widely used in the prevention and control of sand damage along the railways and highways and farmland in desert areas of our country. But both approaches also have inherent limitations. The so-called chemical sand fixation method is to spray cementing substances on the surface of quicksand to fix quicksand, cut off the connection between sand particles and wind, and make quicksand fix in place for a period of time to plant various psammophytes, which is also a method of sand prevention and control. One of the most effective ways. Contents of the invention [0003] The object of the present invention is to provide a soil coagulant....

Claims

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Application Information

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IPC IPC(8): E02D3/12
Inventor 罗俊宝
Owner 罗俊宝
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