CAJ | 학술논문

掌子面灾变行为、碎屑流运动发展规律、围岩稳定控制是碎屑流隧道修建过程中关键科学问题。结合祁连山的碎屑流地层构造，自主研制“碎屑流发生”的模拟试验装置，“再现”碎屑流发生过程、形成条件，揭示碎屑流发生、发展规律，并分析碎屑流的发生的影响因素。通过正交试验，探讨水头高度、碎屑流重度、埋深、物质组成等因素对碎屑流发生的影响，探明水持续性作用下掌子面失稳模式，提出掌子面稳定性判释指标。并根据模型试验结果对洞室碎屑流形成条件、物质结构组成、地下水和隧道开挖断面进行系统分析。研究成果为碎屑流地层围岩稳定控制机制、碎屑流隧道灾害控制以及隧道修建技术提供理论依据。
장자면재변행위、쇄설류운동발전규률、위암은정공제시쇄설류수도수건과정중관건과학문제。결합기련산적쇄설류지층구조，자주연제“쇄설류발생”적모의시험장치，“재현”쇄설류발생과정、형성조건，게시쇄설류발생、발전규률，병분석쇄설류적발생적영향인소。통과정교시험，탐토수두고도、쇄설류중도、매심、물질조성등인소대쇄설류발생적영향，탐명수지속성작용하장자면실은모식，제출장자면은정성판석지표。병근거모형시험결과대동실쇄설류형성조건、물질결구조성、지하수화수도개알단면진행계통분석。연구성과위쇄설류지층위암은정공제궤제、쇄설류수도재해공제이급수도수건기술제공이론의거。
The catastrophic behavior of working face,the movement and development of debris flow,the stability control of the surrounding rock mass are the key scientific issues of tunnel construction in the debris flow strata. A test device capable of simulating the geological structural features of Qilianshan tunnel were developed for investigating the occurrence,the development and the mechanism of catastrophe of debris flow. A program of orthogonal tests was carried out to study the effects of the water pressure,the debris gravity and burial depths of debris strata,material compositions on the occurrence of debris flow. The instability model of tunnel face and the stability identification index of tunnel face under the lasting action of water pressure were investigated. The conditions of strata formation of debris flow such as the material structure,the groundwater and the tunnel excavation section were analyzed systematically according to the results of the model tests.