Microorganism curing treatment device used for sand-layer foundation and construction process of device

Abstract

The invention discloses a microorganism curing treatment device used for a sand-layer foundation. The microorganism curing treatment device comprises a conveying device and a hollow pipe pile. The output end of the conveying device communicates with the upper end of the hollow pipe pile. Bacteria and a nutrient solution are output into the hollow pipe pile through the conveying device. The hollowpipe pile is inserted into a soil body. Liquid outlets are evenly formed in the wall of the hollow pipe pile. The bacteria and the nutrient solution flow into the soil body through the liquid outlets.The invention further provides a construction process of the device. The construction process comprises the steps that (1) the hollow pipe pile is prefabricated and then driven into the soil body; (2) the bacteria are cultivated to the required number, and the nutrient solution is prepared; (3) bacterium liquid enters the soil body through the liquid outlets; (4) the nutrient solution is injectedinto the hollow pipe pile through the conveying device; and (5) the step (3) and the step (4) are repeated until the soil body meets the requirements. The structure, construction steps and operationare simple, the project construction period can be greatly shortened, the soil body is reinforced through nontoxic materials, and the microorganism curing treatment device and the construction processhave the beneficial effects of being slight in environment pollution, low in carbon, environmentally friendly, low in construction cost and high in economic benefits.

Description

technical field [0001] The invention belongs to the technical field of construction equipment, in particular to a microbial solidification treatment device for sand foundations and a construction process thereof. Background technique [0002] At present, most of the foundation reinforcement methods at home and abroad use chemical materials or mechanized physical tamping to reinforce the soil. Among them, the traditional chemical material method usually uses chemical grouting, and the materials used in this method except Na 2 SiO 3 In addition, other chemical materials are toxic, so many countries prohibit the use of chemical grouting materials. Mechanized physical tamping generally adopts the geotextile reinforcement method, and this method has the following disadvantages: 1, a large amount of energy needs to be consumed in the mechanical construction process, the construction noise is large, and the foundation has durability and short service life; 2, the construction use...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the existing problems of using chemical materials or mechanized physical tamping to reinforce the soil, which have the problems of destroying the ecological environment, high construction noise, durability and short service life of the foundation, and provide a simple structure A microbial solidification treatment device for sand foundations and its construction technology that is low-carbon and environmentally friendly, low in construction cost and long in service life

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