膨胀性泥岩隧道工程应对措施分析

Analysis on Countermeasures for Expansive Mudstone Tunnel Engineering

根据近年来国内外学者围绕膨胀性泥岩工程地质特性取得的研究成果,对膨胀性泥岩及其工程应用多年来的研究进展做了系统性的综述,并对施工要点进行了总结:膨胀岩与普通岩体相比,裂缝性是其最突出的特点;水环境对膨胀性泥岩的影响显著,特别是在干湿循环条件下变形具有一定的不可逆性,且膨胀性与亲水性密切相关;在膨胀性泥岩地质区域修建隧道,需要将理论分析、现场及室内试验、数值模型分析结合起来。

Based on the research achievements of domestic and foreign scholars on the engineering geological characteristics of expansive mudstone in recent years,the systematic review is made on the research progress of expansive mudstone and its engineering application over the years,and the construction points are summarized:compared with the ordinary rock mass,the most prominent feature of expansive rock is its cracking;the influence of water environment on the expansive mudstone is significant,especially under the condition of dry and wet cycle,the deformation has a certain degree of irreversibility,and the expansibility is closely related to hydrophilicity;the construction of tunnels in the expansive mudstone geological area requires a combination of theoretical analysis,on-site and indoor experiments,and numerical model analysis.