Soil mass stabilization agent and production method and application thereof

Abstract

The invention discloses a soil mass stabilization agent and a production method and application thereof. The soil mass stabilization agent is composed of A liquid and B liquid; the A liquid comprisesthe following components of, in parts by weight, 15-25 parts of acrylamide, 0.5-1.5 parts of methylene diacrylamide, 0.4-1.0 part of tetramethylethylenediamine and 70-85 parts of water; and the B liquid is an ammonium persulfate aqueous solution with a mass percent of 0.8-1.6%. Ammonium persulfate is used as an initiator, the acrylamide is used as a polymerization monomer raw material, the methylene diacrylamide and the tetramethylethylenediamine are used as cross-linking agents, and firstly, a curing effect of generated polymer sol is used for making a soil mass solidify to form a whole, so that the soil mass is stabilized, the soil mass stabilization agent has an excellent stabilization effect, and tunneling can be smoothly conducted; and secondly, the generated polymer sol is low in cohesiveness and good in watertightness, and not only are bin pasting of a shield tunneling machine and mud lining of a cutter panel of the shield tunneling machine avoided, but also inflow of the rear portion of a shield tail can be sealed, so that fast tunneling of the shield tunneling machine is achieved, and accordingly the soil mass stabilization agent plays a positive role in tunnel construction.

Description

technical field [0001] The invention relates to the field of building engineering materials, in particular to a soil reinforcement agent and a preparation method and application thereof. Background technique [0002] With the rapid development of my country's national economy, the country has intensified the construction of the transportation system. In the process of transportation construction, due to the influence and restrictions of terrain or other factors, it is often necessary to excavate tunnels. Among them, the commonly used tunnel excavation tools are shields. institutions. Shield machine, also known as shield tunnel boring machine, is a kind of special engineering machinery used for tunnel boring. Modern shield boring machine integrates light, machinery, electricity, hydraulic, sensing and information technology, and has the advantages of excavation It has functions such as cutting soil, transporting soil muck, assembling tunnel lining, measuring guide and correct...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the poor reinforcement effect of the existing soil reinforcement agent, which will cause the defects of mud cake in the shield machine and the cutter head panel, and propose a soil reinforcement agent and its preparation method and Application: The soil reinforcement agent uses ammonium persulfate as the initiator, acrylamide as the polymerization monomer raw material, methylene bisacrylamide and tetramethylethylenediamine as the crosslinking agent, so that acrylamide undergoes free radical polymerization reaction to generate polymer sol, which not only uses the solidification effect of polymer sol to solidify the soil to form a whole, realizes the stability of the soil, has excellent reinforcement effect, and can ensure the smooth progress of excavation; moreover, by controlling the polymer unit The ratio of the body raw materials makes the generated polymer sol have low cohesiveness and good water resistance, which will not cause mud cakes in the shield machine and the cutter head panel, and can block the water coming from the rear of the shield. , to realize the rapid excavation of the shield machine, which has a positive effect on the construction of the tunnel