CAJ | 학술논문

大型原位试验是研究复杂工程问题的重要手段。锦屏二级引水隧洞的建设过程中，在埋深1850 m深度针对TBM开挖的3#引水隧洞设计并实施原位试验。原位试验的内容包括：应力监测(空心包体和弦式)了解隧洞开挖过程中围岩应力状态的动态发展变化；声发射监测了解围岩应力调整过程中微破裂发生的位置和范围；松动圈测试确定围岩的开挖损伤深度；围岩变形监测(光纤光栅和多点位移计)了解隧洞的变形特征；数字钻孔摄像直观地观察围岩宏观破裂发展过程。本文是系列文章中的第一篇，介绍工程背景、试验的设计和试验区域地质结构的精细描述。
대형원위시험시연구복잡공정문제적중요수단。금병이급인수수동적건설과정중，재매심1850 m심도침대TBM개알적3#인수수동설계병실시원위시험。원위시험적내용포괄：응력감측(공심포체화현식)료해수동개알과정중위암응력상태적동태발전변화；성발사감측료해위암응력조정과정중미파렬발생적위치화범위；송동권측시학정위암적개알손상심도；위암변형감측(광섬광책화다점위이계)료해수동적변형특정；수자찬공섭상직관지관찰위암굉관파렬발전과정。본문시계렬문장중적제일편，개소공정배경、시험적설계화시험구역지질결구적정세묘술。
The large scale in-situ test is an important method to solve complex engineering problems. During the construction of diversion tunnels at Jinping II hydropower station,an in-situ test program to monitor the realtime response of the surrounding rocks of the diversion tunnel excavated with TBM was designed and implemented. The contents of the in-situ test program include the stress measurement of rock mass with the rock stress meters of vibrating wire and CSIRO HI Cells to record the stress change in rock mass during tunneling,the acoustic emission monitoring to detect the crack initiation and propagation in rock mass during excavation,the sonic velocity measurement to determine the profile of excavation damage zone around tunnel,the displacement measurement with the multipoint displacement meters and fiber Bragg grating sensors to obtain the deformation of rock mass during tunneling,the digital photographing of borehole to observe the process of the macrocrack initiation. This article is the first of the series and introduce the background of the project,the designing of the in-situ test program,and the detailed geological models of the tested region.