水利与建筑工程学报
水利與建築工程學報
수리여건축공정학보
TECHNIQUE OF SEEPAGE CONTROL
2014年
2期
228-232
,共5页
李水兵%单海年%陶丛丛%许永祥
李水兵%單海年%陶叢叢%許永祥
리수병%단해년%도총총%허영상
随机介质理论%概率积分法%隧洞开挖%岩石位移
隨機介質理論%概率積分法%隧洞開挖%巖石位移
수궤개질이론%개솔적분법%수동개알%암석위이
stochastic medium theory%probability integrating method%tunnel excavation%rock displacement
隧洞开挖引起的上覆岩石的位移,传统的预计模型能很好地对变形的最大值进行预计,但没有对岩石下沉过程进行研究分析。通过将隧洞开挖过程中上覆岩层移动模拟为随机过程,采用随机介质理论建立概率积分模型对隧洞开挖过程中岩石位移进行模拟分析,显示出隧洞开挖过程中岩石位移分层影响传递规律,并结合江苏某抽水蓄能电站实际观测数据,通过建立传统模型对概率积分模型的参数进行预测,模拟的岩石下沉过程对解释隧洞开挖过程中岩石移动具有一定的参考价值。
隧洞開挖引起的上覆巖石的位移,傳統的預計模型能很好地對變形的最大值進行預計,但沒有對巖石下沉過程進行研究分析。通過將隧洞開挖過程中上覆巖層移動模擬為隨機過程,採用隨機介質理論建立概率積分模型對隧洞開挖過程中巖石位移進行模擬分析,顯示齣隧洞開挖過程中巖石位移分層影響傳遞規律,併結閤江囌某抽水蓄能電站實際觀測數據,通過建立傳統模型對概率積分模型的參數進行預測,模擬的巖石下沉過程對解釋隧洞開挖過程中巖石移動具有一定的參攷價值。
수동개알인기적상복암석적위이,전통적예계모형능흔호지대변형적최대치진행예계,단몰유대암석하침과정진행연구분석。통과장수동개알과정중상복암층이동모의위수궤과정,채용수궤개질이론건립개솔적분모형대수동개알과정중암석위이진행모의분석,현시출수동개알과정중암석위이분층영향전체규률,병결합강소모추수축능전참실제관측수거,통과건립전통모형대개솔적분모형적삼수진행예측,모의적암석하침과정대해석수동개알과정중암석이동구유일정적삼고개치。
For the overlying-rock displacement caused by tunnel excavation ,the traditional model can well predict the maximum deformation ,but it can not study and analyze the rock sinking process .Through the stochastic process simula-tion for the overlying-rock displacement caused by tunnel excavation ,the probability integrating model based on the stochastic medium theory is built to simulate the rock displacement in the process of tunnel excavation ,and the law of the layered transfer of the rock displacement in tunnel excavation is shown .Simultaneously ,combining with the observation data of a pumped storage power station in Jiangsu ,the parameters of the probability integrating model are estimated by the traditional model .The rock sinking process simulated here has a certain reference value to explain the rock displacement in the process of tunnel excavation .