膨胀岩研究现状及其隧道施工技术综述

Research of Swelling Rock and Summarize of Tunnel Construction

近年来,随着我国公路、铁路建设事业的发展,膨胀岩对隧道工程的危害不断凸显,针对膨胀岩进行研究是解决这一问题的关键。对膨胀岩基础理论的发展及膨胀岩隧道施工技术进行了综述,对基础理论研究中的膨胀岩分类方法、膨胀机理研究、膨胀岩试验研究和膨胀岩本构模型研究进行了总结和归纳,并指出第一类膨胀岩膨胀机理,考虑渗透率、温度、水压的岩石膨胀理论及其本构模型具有研究前景;同时论文对国内膨胀岩隧道支护方法和施工要点进行了总结,并指出膨胀岩隧道支护应采用分层支护的方法,施工过程中应减少对围岩的扰动并做好防排水措施。

In recent years,with the development of road and railway construction,the harm to engineering caused by swelling rock is becoming a serious problem in China. Study on the swelling rock is the key to solve the problem. The development process of the basic theory of swelling rock was sketched,the classification method,swelling mechanism,swelling test and constitutive model of swelling rock was summarized. It pointed out that the swelling mechanism and swelling constitutive model considering permeability,temperature,and water pressure were promising. The support methods and key points of the construction of the domestic tunnel constructed in swelling rock were summarized,and supporting method should be taken for the tunnel constructed in swelling rock should take layered,disturbance to the surrounding rock should be reduced,and effective waterproof and drainage measure should be taken.