渝利铁路青石岩段边坡危岩体稳定性评价及防治措施研究
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摘要
渝利铁路青石岩段为深切河谷型边坡,该边坡表部岩体在风化缷荷作用下结构复杂且稳定性差。此外,浅表层岩体在降雨、地震及工程开挖等影响下,局部已经出现了不同模式不同规模的变形失稳现象,严重影响工程建设和运营期间的安全。因此,本文根据边坡岩体结构特征及风化缷荷特征等工程地质条件,结合不同失稳模式的危岩体,提出了相应的稳定性评价理论和方法。最后,针对不同规模和不同稳定状态下的危岩体提出了有效的防治措施。
The surface rock masses on the slope of Qingshiyan section of Yu-Li railway have lots of discontinuities and are of low stabilities with weathering and load-release during the valley eroded down.Moreover,the surface rock masses locally present different modes and deformation or instability phenomena under the influence of rain,earthquake and engineering excavation,which seriously affects the security of people and buildings during engineering construction and railway operation.Therefore,according to engineering geological conditions of the slope,such as the characteristics of rock mass structure and weathering and load-release.the authors had put forward corresponding theories and methods of stability evaluation with different failure modes of potential unstable rock masses.Finally,the authors had put forward some effective prevention measures for potential unstable rock masses of different sizes and stability states.
The surface rock masses on the slope of Qingshiyan section of Yu-Li railway have lots of discontinuities and are of low stabilities with weathering and load-release during the valley eroded down.Moreover,the surface rock masses locally present different modes and deformation or instability phenomena under the influence of rain,earthquake and engineering excavation,which seriously affects the security of people and buildings during engineering construction and railway operation.Therefore,according to engineering geological conditions of the slope,such as the characteristics of rock mass structure and weathering and load-release.the authors had put forward corresponding theories and methods of stability evaluation with different failure modes of potential unstable rock masses.Finally,the authors had put forward some effective prevention measures for potential unstable rock masses of different sizes and stability states.
引文
[1]张倬元,王士天,王兰生.工程地质分析原理[M].北京:地质出版社,1994,114-119.
[2]刘宏,宋建波,向喜琼.缓倾角层状岩质边坡小危岩体失稳破坏模式与稳定性评价[J].岩石力学与工程学报,2006,25(8):1606-1611.
[3]胡厚田.崩塌与落石[M].北京:中国铁道出版社,1989:9-24.
[4]刘卫华.高陡边坡危岩体稳定性、运动特征及防治对策研究[D].成都:成都理工大学,2008.
[5]陈洪凯,唐红梅,王蓉.三峡库区危岩稳定性计算方法及应用[J].岩石力学与工程学报,2004,23(4):614-619.
[6]常士骠,张苏民,等.工程地质手册(第四版)[M].北京:中国建筑工业出版社,2006,554-558.
[7]黄达,黄润秋,周江平,等.雅砻江锦屏一级水电站坝区右岸高位边坡危岩体稳定性研究[J].岩石力学与工程学报,2007,26(1):175-181.
[8]肖树芳,杨淑碧.岩体力学[M].北京:地质出版社,1987,144-167.
[2]刘宏,宋建波,向喜琼.缓倾角层状岩质边坡小危岩体失稳破坏模式与稳定性评价[J].岩石力学与工程学报,2006,25(8):1606-1611.
[3]胡厚田.崩塌与落石[M].北京:中国铁道出版社,1989:9-24.
[4]刘卫华.高陡边坡危岩体稳定性、运动特征及防治对策研究[D].成都:成都理工大学,2008.
[5]陈洪凯,唐红梅,王蓉.三峡库区危岩稳定性计算方法及应用[J].岩石力学与工程学报,2004,23(4):614-619.
[6]常士骠,张苏民,等.工程地质手册(第四版)[M].北京:中国建筑工业出版社,2006,554-558.
[7]黄达,黄润秋,周江平,等.雅砻江锦屏一级水电站坝区右岸高位边坡危岩体稳定性研究[J].岩石力学与工程学报,2007,26(1):175-181.
[8]肖树芳,杨淑碧.岩体力学[M].北京:地质出版社,1987,144-167.
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