Method of Consolidating Clay Subgrade Using Carbon-fixing Bacteria Mineralization

A clay and roadbed technology, applied in chemical instruments and methods, roads, applications, etc., can solve problems such as time-consuming, easy to collapse, inconvenient operation, etc., and achieve good long-term effect, good reinforcement effect, and convenient construction and operation.

Active Publication Date: 2021-02-26
WENZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 of Consolidating Clay Subgrade Using Carbon-fixing Bacteria Mineralization
  • Method of Consolidating Clay Subgrade Using Carbon-fixing Bacteria Mineralization
  • Method of Consolidating Clay Subgrade Using Carbon-fixing Bacteria Mineralization

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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 clay roadbeds by using carbon-fixing bacteria, which comprises the following steps: A. cultivating Streptomyces luteus bacteria to obtain bacterial liquid; B. first pouring quartz sand into the clay constituting the roadbed and stirring , then pour the mixture of Streptomyces luteus bacterial liquid, slaked lime and foamy carbon dioxide into the mixture of clay and quartz sand and fully stir; The method for reinforcing the clay subgrade provided by the invention is more environmentally friendly, more convenient and faster to operate, and has better reinforcing effect.

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 Patents(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 UNIV
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