Urease reinforcement liquid for slope protection and preparation and construction method thereof

A technology of strengthening liquid and urease, applied in the directions of biochemical equipment and methods, chemical instruments and methods, enzymes, etc., can solve a large number of labor costs and material costs, water and soil loss engineering accidents, environmental damage and other problems, to increase strength, increase Compression resistance, the effect of improving uniformity

Inactive Publication Date: 2021-07-30
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure has a unique soil composition and complex and fragile foundation conditions, which lead to extremely prone to water and soil erosion under runoff conditions and engineering accidents
However, in today's projects, the engineering slope is often protected by laying geotextiles or pouring cement mortar to solve the runoff erosion of the rainwater on its surface. Although the treatment effect is obvious, it requires a lot of labor and material costs during the implementation process. , but also caused serious damage to the local environment

Method used

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  • Urease reinforcement liquid for slope protection and preparation and construction method thereof
  • Urease reinforcement liquid for slope protection and preparation and construction method thereof
  • Urease reinforcement liquid for slope protection and preparation and construction method thereof

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specific Embodiment approach 1

[0035] Embodiment 1: This implementation discloses a urease reinforcement solution for slope reinforcement, including a soybean urease solution, a treatment solution, skimmed milk powder and sodium alginate solution. The urease activity of the soybean urease solution is in the range of 3.5-5 mmol / min, and the treatment liquid is 0.75-1.5 mol / L urea-calcium acetate mixed solution. Skim milk powder is added to soybean urease solution to prepare enzyme liquid, and the concentrations of urease and skim milk powder in the enzyme liquid are kept at 2-4 g / L and 3-5 g / L respectively. Preferably, it is 4mmol / min active soybean urease solution, 1mol / L treatment solution, 3g / L urease and 4g / L skimmed milk powder.

specific Embodiment approach 2

[0036] Embodiment 2: This embodiment is a specific description of Embodiment 1. The concentration of the sodium alginate solution is 1.2 to 1.5 times the concentration of the enzyme solution. Preferably, the concentration of the sodium alginate solution is 1.25 times the concentration of the enzyme solution.

specific Embodiment approach 3

[0037] Specific embodiment three: This specific embodiment discloses a method for preparing a urease reinforcement solution for slope reinforcement according to specific mode one, including:

[0038] The preparation method of the soybean urease solution: take the soybeans and bake them in an oven at 40-50 DEG C for 6-7 hours, and put the dried soybeans into a pulverizer to pulverize them. In order to ensure the quality of soybean crushing, it should be crushed in small quantities and in multiple batches. The crushed soybeans should be stored in a low-temperature and dry environment for later use, and then add deionized water to the soybean powder to prepare a 15-30g / L soybean powder solution , after fully stirring the soybean powder solution with a magnetic stirrer, let it stand for 2 to 3 hours, then filter the upper layer of the soybean powder solution after centrifugation through gauze and pour it into a centrifuge tube at 3000 to 4000r / min, 4 to 6°C Centrifuge for 15 to 20...

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Abstract

The invention provides a pre-buried drip irrigation urease reinforcement liquid for slope protection and a preparation and construction method thereof. The urease reinforcement liquid comprises a soybean urease solution, a treating fluid, skim milk powder and a sodium alginate solution. The urease activity of the soybean urease solution ranges from 3.5 mmol / min to 5 mmol / min, and the treating fluid is a 0.75 mol / L to 1.5 mol / L urea-calcium acetate mixed solution. The skim milk powder is added into the soybean urease solution to prepare an enzyme solution, wherein the concentrations of urease and skim milk powder in the enzyme solution are respectively kept at 2-4 g / L and 3-5 g / L; and holes are drilled in a slope body, then the enzyme liquid and the treating fluid are injected into the slope body, the holes of the slope body are filled with zeolite powder, then a sodium alginate solution is sprayed on the slope surface, then the enzyme liquid and the treating fluid are sprayed, and then grass seeds are sprayed. According to the invention, the slope body can be reinforced, ammonia gas generated by enzymatic reaction is reduced, soil is protected, the erosion resistance and crack resistance of the slope surface are improved, and the slope can also be afforested.

Description

technical field [0001] The invention relates to a urease reinforcement solution for slope protection and a preparation and construction method thereof, belonging to the technical field of slope ecological protection engineering. Background technique [0002] With the rapid development of my country's economy and society, soil slope has become one of the most common engineering structures. The structure has a unique soil composition and complex and fragile foundation conditions, which lead to extremely prone to water and soil erosion under runoff conditions and engineering accidents. However, in today's projects, the engineering slope is often protected by laying geotextiles or pouring cement mortar to solve the runoff erosion of the rainwater on its surface. Although the treatment effect is obvious, it requires a lot of labor and material costs during the implementation process. , but also caused serious damage to the local environment. Urease-induced calcium carbonate pre...

Claims

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Application Information

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IPC IPC(8): C09K17/32C12N9/80E02D17/20E02D3/12C09K103/00
CPCC09K17/32C09K2103/00C12N9/80C12Y305/01005E02D3/12E02D17/20
Inventor夏振尧朱志恩肖海高峰张千恒胡欢
OwnerCHINA THREE GORGES UNIV