高浓度膨润土触变泥浆在砂质粉土工程中的应用

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【中图分类号】：TU990.3 【文献标志码】：A 【文章编号】：1008-3197（2025）05-46-04

【DOI编码】：10.3969/j.issn.1008-3197.2025.05.011

Application of High-concentration Bentonite Thixotropic Slurry in Sandy Silt Engineering

WANG Sukang，NIU Liancao

（TianjinUndergroundRailwayGroupCo.，Ltd.，Tianjin3ooO11，China）

【Abstract】：Taking the actual projectas an example，this paper compares and analyzes theinfluence of twothixotropic mud with different ratios on the surface setlement and jacking force，proves the applicability of thixotropic mud withhigh concentrationbentonite in sandy and siltysoil layer，and puts forward several points forattention in the process of pipe jacking construction.

【Key words】：Thixotropic mud；sandy and silt soil；surface settlement； jacking force

大截面、长距离顶管施工如何保证地面的平稳和克服摩擦阻力是技术难点。（剩余3572字）