Method for preventing and treating bridge abutment trip by using microorganism consolidation liquid and microorganism consolidation liquid

Abstract

The invention discloses a method for preventing and treating bridge abutment trip by using microorganism consolidation liquid and the microorganism consolidation liquid. Microbial flora powder, treatment powder and water are adopted; the microbial flora powder is obtained by drying a bacterial enzyme solution; the treatment powder is obtained by drying inorganic cementing liquid treatment liquid;the bacterial enzyme solution is obtained by adding aerobic bacterial liquid subjected to enrichment culture into a buffer solution and performing ultrasonic crushing; the mass ratio of the microbialflora powder to the treatment powder is (1: 10) to (1: 20); and the mass of the water is 5 to 10 times that of the treatment powder. The method comprises the following steps: delivering the microbialflora powder to the site, mixing and stirring the microbial flora powder with the treatment powder, and adding the water to obtain the microorganism consolidation liquid; and performing consolidationtreatment on bridge abutment soil and bridge back soil for multiple times by using the microorganism consolidation liquid. According to the method, by use of cementation generated by microorganism consolidation, the strength and the rigidity of backfilling soil of the bridge back are greatly improved, so that non-uniform settling is avoided, and occurrence of the bridge abutment trip can be effectively prevented.

Description

technical field [0001] The invention belongs to the technical fields of civil engineering, traffic engineering and microbial solidification, and relates to the application of microbial solidification process to the prevention and treatment of abutment vehicle jumping, in particular to a method for using microbial reinforcement liquid to prevent and control abutment vehicle jumping and the microbial reinforcement liquid. Background technique [0002] With the development of the economy, the speed of China's highway construction is developing rapidly, and structures such as culverts and bridges account for an increasing proportion of the total mileage of highways. These structures have played a positive role in improving the flood discharge and subgrade protection capabilities of roads, but at the same time they have also caused some negative problems, such as the abutment jumping phenomenon is a typical problem. Abutment vehicle jumping refers to the height difference between...

AI Technical Summary

Problems solved by technology

However, the current foundation treatment methods such as soil cushion replacement, drainage consolidation, vacuum preloading, and the setting of concrete stepped transition sections all have the characteristics of long construction period and high cost. In recent years, the rapid development of microbial solidification reinforcement technology It has many advantages such as effectively improving the stiffness of the soil, low cost, short construction period, and controllable quality, which is extremely in line with the engineering needs of abutment jumping

Images