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

A coagulant and soil technology, which is used in soil protection, infrastructure engineering, construction, etc.

Inactive Publication Date: 2006-07-19
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

[0037] In Example 2, the preparation method of the soil coagulant was the same as in Example 1. Spray the soil coagulant with the concentration of 30% and 40% uniformly on the model sand table of the grid-shaped sand barrier of 10×10cm and 15×15cm, and place it on the slope of 30-40 degrees to observe the amount of sand accumulation. Happening

[0038] Soil coagulant concentration

[0039] It can be seen from Table 4 that on a slope of 30-40 degrees, the soil coagulant resists wind and sand erosion on the consolidated sand layer, and the use of 15×15cm barriers can play a good role.

Embodiment 3

[0040] In Example 3, the present invention uses natural soaking or consolidation compaction to determine the compressive strength and shear force of the soil coagulant

[0041] The preparation method of the soil coagulant is the same as in Example 1.

[0042] ① Natural penetration

[0043] Three ring cutters with a diameter of 6.18cm and a height of 2cm and a sampler 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 30-40. °, 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 cutter, and then fill in the sand so that the sand is higher than the surface of the ring cutter , Spray a little soil coagulant, after solidification, shovel the surface of the sample, take out the sample f...

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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 fixation and chemical sand fixation. At present, the first two methods of sand fixation have been widely used in the prevention and control of sand damage on railways, highways and farmland in desert areas in my country. But these two methods also have inherent limitations. The so-called chemical sand fixation method is a method of spraying cementing materials on the surface of the quicksand to fix the quicksand, which cuts off the connection between the sand particles and the wind, and fixes the quicksand on the spot for a certain period of time to plant various sand plants, which is also sand control. One of the most effective ways. Summary 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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Patent Type & Authority Patents(China)
IPC IPC(8): E02D3/12
Inventor 罗俊宝
Owner 罗俊宝
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