Microorganism negative-pressure surface soil reinforcement method

Abstract

A microorganism negative-pressure surface soil reinforcement method comprises the steps that a, negative-pressure pipes 1 are buried at the position 10 cm to 20 cm below the surface of a to-be-reinforced soil body 4, the line spacing is 20 cm, and a negative-pressure pipe network is formed; b, microorganism bacterial liquid is sprayed to the surface of the to-be-reinforced soil body 4, meanwhile, a vacuum pump 3 is started to extract air and pore liquid in the to-be-reinforced soil body 4 through the negative-pressure pipes 1, infiltration of the microorganism bacterial liquid on the surface of the to-be-reinforced soil body 4 is accelerated, and when the bacterial liquid enters the negative-pressure pipes 1, the vacuum pump 3 is shut down, and standing is carried out for 4 h to 8 h; c, a pre-prepared gluing solution is sprayed to the surface of the to-be-reinforced soil body 4, then the vacuum pump 3 is started to extract air and pore liquid in the to-be-reinforced soil body 4 through the negative-pressure pipes 1, the to-be-reinforced soil body 4 around the negative-pressure pipes 1 is in an unsaturated state, and when the saturation degree is reduced to 25%, the vacuum pump 3 is shut down, and standing is carried out for 12 h; and d, the step b and the step c are repeated till the strength of the to-be-reinforced soil body meets the reinforcement requirement.

Description

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AI Technical Summary

Benefits of technology

This patented technology involves creating an environmentally friendly material called vacuum pumps with special properties for improving cleanliness and reducing damage from contamination or corrosion issues associated with concrete surfaces such as those found near construction sites where these materials may come into direct contact with rainwater or other liquids containing harmful substances like chlorine gas (Cl2)). By adding this material onto existing structures made up of traditional methods involving brushings followed by sand blasting processes, they provide better results compared to previous techniques without it. Additionally, there has been research conducted showing how applying synthetic resin coatings over them helps prevent cracks formed through freeze/thaw cycles. Overall, this new method provides technical benefits including improved cleanlininess, reduced risk of damaging surrounding areas, increased durability against wear and tear, enhanced control over deposit thicknesses, and environmental friendliness.

Problems solved by technology

This technical problem addressed in this patents relates to improving the efficiency of microbiological groundwater prevention/fixation methods applied to various types of surfaces like road construction projects without causing damage from salt runoff issues due to their high solubility properties. Prior art techniques involve adding calcium hydroxide powder to improve adhesive bonding while reducing hydrous clay swelling caused by moisture evaporation. However, these processes result in decreased durable concrete strength and uneven distribution of aggregate content within the resulting structure.

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