Method for mineralizing and reinforcing clay roadbed by using carbon fixation bacteria

A clay and roadbed technology, which is applied in the field of clay roadbed reinforced by carbon-fixing bacteria mineralization, can solve the problems of many hours of work, easy to collapse, inconvenient operation, etc., and achieve the effect of convenient construction and operation, good reinforcement effect and long-term effect

Active Publication Date: 2019-04-16
WENZHOU UNIVERSITY
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  • Abstract
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Problems solved by technology

The above-mentioned reinforcement method consumes more man-hours, is costly, is inconvenient to operate, and is prone to collapse in the later stage

Method used

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  • Method for mineralizing and reinforcing clay roadbed by using carbon fixation bacteria
  • Method for mineralizing and reinforcing clay roadbed by using carbon fixation bacteria
  • Method for mineralizing and reinforcing clay roadbed by using carbon fixation bacteria

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Embodiment Construction

[0014] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0015] refer to figure 1 , figure 2 , image 3 As shown, the method for using carbon-fixing bacteria to mineralize and reinforce the clay subgrade provided by the first embodiment of the present invention includes the following steps:

[0016] A. Cultivate Streptomyces flavinus bacteria to obtain bacterial liquid;

[0017] B. First pour the quartz sand into the clay that constitutes the roadbed and stir it, then pour the mixture of Streptomyces spp. bacteria liquid, slaked lime and foamed carbon dioxide into the mixture of clay and quartz sand and stir fully; the foamed carbon dioxide is divided into Inject into the subgrade soil on 1, 3, 7, and 14 days, and spray clean water after each injection to make the soil moist.

[0018] C. Stand still until carbonization and solidification are formed.

[0019] Wherein, the mass ratio of 1% Streptomyces luteus bacteria,...

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Abstract

The invention discloses a method for mineralizing and reinforcing a clay roadbed by using carbon fixation bacteria. The method comprises the following steps that A, streptomyces microflavus is cultured, and a bacteria solution is obtained; B, quartz sand is poured into clay for forming a roadbed, stirring for mixing is conducted, and then a mixture of the streptomyces microflavus bacteria solution, slaked lime and foam carbon dioxide is poured into the mixture of the clay and the quartz sand for sufficient stirring; C, standing is conducted to form a carbonized coagulum. The method for reinforcing the clay roadbed is more environmentally friendly, the operation is more convenient and faster, and the reinforcing effect is better.

Description

technical field [0001] The invention relates to a method for mineralizing and strengthening clay roadbed by carbon-fixing bacteria. Background technique [0002] The methods used to reinforce the traditional clay subgrade are as follows: 1. Dig away the clay, 2. Fill the subgrade with new materials such as slag and stones, and 3. Roll the road several times with a roller compactor to compact it. The above-mentioned reinforcement method consumes more man-hours, is costly, is inconvenient to operate, and is prone to collapse in the later stage. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a more convenient, quicker and more environmentally friendly method of using carbon-fixing bacteria to mineralize and reinforce clay roadbeds. [0004] For this reason, the method provided by the invention adopts the mineralization of carbon-fixing bacteria to reinforce the clay roadbed, comprising the following steps: [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/00E01C3/04C09K17/40C09K103/00
CPCC09K17/40C09K2103/00E01C3/00E01C3/04
Inventor 於孝牛余闯蔡晓庆杜田生
Owner WENZHOU UNIVERSITY
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