不同干湿作用下斜坡表层千枚岩劣化实验研究
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摘要
甘肃白龙江流域、四川嘉陵江流域和云南小江流域等地区干湿气候特征复杂,泥石流沟道中边坡表层千枚岩易受干湿作用影响,发生崩塌脱落,为该类区域泥石流提供了丰富的物源物质。通过对研究区气候条件进行调查,选取极干-极湿、常规干湿、日常干湿等3种对岩石破坏极为有利的干湿条件,以泥石流沟壁表层千枚岩为研究对象,对其进行上述3种干湿条件养护,对循环后岩样的宏观形态、质量、纵波波速进行测试,并结合单轴无侧限抗压实验以及与新生成分的矿物分析,阐述了千枚岩分别在不同干湿作用下的劣化响应行为与机理,揭示了斜坡表层千枚岩对极干-极湿条件的劣化响应行为优于其他干湿作用的规律,为该地区泥石流灾害的区划评价和防治提供有益的参考。
The places in Gansu Bailong,Sichuan Jialing and Yunan Xiaojiang river basin have complex dry-wet climate characteristics. Phyllite slope in debris flow gully is easily affected by dry-wet climate,which can cause the collapse of the slopes. The slope collapses provide rich source materials for debris flow in such areas. After investigated the climate conditions in the study area,we select 3 kinds of conditions: common condition,dry-wet condition and extreme dry-wet condition. These three conditions are very beneficial to rock breaking. The phyllite in the surface of debris flow is the research object. And these three kinds of condition are taken as the experimental conditions. After dry-wet cycles maintenance,we carry out macroscopic observation of samples. We also test theirquality-rate of change,elastic wave velocity,uniaxial compressive strength,analyzed new components of phyllite.After the observation and tests,we get some results. They explain that under different dry-wet circulations the degradation behavior and mechanism of phyllite are different. These results also reveal that the best influent factor is the extreme dry-wet. It provides a useful reference for regional evaluation and prevention of debris flow disaster in the study area.
The places in Gansu Bailong,Sichuan Jialing and Yunan Xiaojiang river basin have complex dry-wet climate characteristics. Phyllite slope in debris flow gully is easily affected by dry-wet climate,which can cause the collapse of the slopes. The slope collapses provide rich source materials for debris flow in such areas. After investigated the climate conditions in the study area,we select 3 kinds of conditions: common condition,dry-wet condition and extreme dry-wet condition. These three conditions are very beneficial to rock breaking. The phyllite in the surface of debris flow is the research object. And these three kinds of condition are taken as the experimental conditions. After dry-wet cycles maintenance,we carry out macroscopic observation of samples. We also test theirquality-rate of change,elastic wave velocity,uniaxial compressive strength,analyzed new components of phyllite.After the observation and tests,we get some results. They explain that under different dry-wet circulations the degradation behavior and mechanism of phyllite are different. These results also reveal that the best influent factor is the extreme dry-wet. It provides a useful reference for regional evaluation and prevention of debris flow disaster in the study area.
引文
Bai T X,Pollard D D,Gao H J.2000.Spacing of edge fractures in layered materials[J].International Journal of Fracture,103(4):373-395.
Chen W W,Lin G C,Liu W,et al.,2016,Physical and mechanica properties of weathered green and red mudstones[J].Chinese Journal of Rock Mechanics and Engineering,35(12):2572-2581.
Cui K,Wu G P,Wang X L,et al.2015.Drying-wetting saturating experiments for deterioration of physical and mechanical properties of slate[J].Journal of Engineering Geology,23(6):1045-1051.
Cui K,Wu G P,Wang X L,et al.2016.Research on the behavior and mechanism of the slate from the slope at the gully of debris flow respond to climate environment[J].Chinese Journal of Rock Mechanics and Engineering,35(S1):2944-2951.
Cui K,Wu G P,Wang X L,et al.2017.Behaviour of slate following freeze-thaw and dry-wet weathering processes[J].Quarterly Journal of Engineering Geology and Hydrogeology,50(2):117-125.
Gokce M V,Ince I,Fener M,et al.2016.The effects of freeze-thaw(F-T)cycles on the G9dene travertine used in historical structures in Konya(Turkey)[J].Cold Regions Science and Technology,127:65-75.
Guo P.2015.The formation mechanism of debris flow in Bailong River Basin[D].Lanzhou:Lanzhou University.
Jiang Y D,Yan Z L,Liu Y X,et al.2011.Experimental study on mechanical properties of rock under the conditions of wet and dry cycles[J].China Mining Magazine,20(5):104-107.
Jiang Y Y.2010.Study on cause and distribution pattern of Debris flows along Chengdu-Jiu Zhaigou Railway[D].Chengdu:Chengdu University of Technology.
Li K G,Wu Y,Zheng D P.2013.Mechanical properties response of sandstone to cyclic drying-wetting effect[J].Transactions of Beijing Institute of Technology,33(10):1010-1014.
Li K G,Zheng D P,Huang W H.2013.Mechanical behavior of sandstone and its neural network simulation of constitutive model considering cyclic drying-wetting effect[J].Rock and Soil Mechanics,34(S2):168-173.
Liang X Z.2010.Comparative study of debris flow development law in the eastern edge of Qinghai-Tibet Plateau region[D].Chongqing:Chongqing Jiaotong University.
Liu C Z,Miao T B,Chen H Q.et al.2011.Basic feature and origin of the“8·8”mountain torrent-debris flow disaster happened in Zhouqu County,Gansu,China,Aug 8,2010[J].Geological Bulletin of China,30(1):141-150.
Luo G C,Fu H Y,He W.2012.Experimental study on the disintegration characteristics of carbonaceous shale[J].Journal of China and Foreign Highway,32(3):309-311.
Pang M K.2011.Study on the developing characteristics and genesis geological environmental conditions of landslides in the Bailongjiang River Basin[D].Chengdu:Chengdu University of Technology.
Schopfer M P J,Arslan A,Walsh J J,et al.2011.Reconciliation of contrasting theories for fracture spacing in layered rocks[J].Journal of Structural Geology,33(4):551-565.
Shao M S,Zhang Z J,Li L.2015.Properties and deterioration mechanism of sandstone blocks in Chengde royal buildings between 1703 and1792[J].Journal of Engineering Geology,23(3):533-538.
Wang Y,Wei Y Y,Luo J.2004.Research on oxidation of pyrite in tunnel host rock and its effect on durability of tunnel concrete linings[J].Journal of Mineralogy and Petrology,24(1):39-42.
Yao H Y,Zhang Z H,Zhu C H,et al.2010.Experimental study on mechanical properties of sandstone under cyclic drying and wetting[J].Rock and Soil Mechanics,31(12):3704-3708.
Yao H Y,Zhu D Y,Zhou Y X,et al.2013.Real-time observation and analysis of fracturing process of sandstone under cyclic drying and wetting[J].Rock and Soil Mechanics,34(2):329-336.
Yu B,Yang Y H,Su Y C,et al.2010.Research on the giant debris flow hazards in Zhouqu county,Gansu province on August 7,2010[J].Journal of Engineering Geology,18(4):437-444.
Yuan X S,Zhang Q S,Li S C,et al.2011.Study of long-term stability of new support structure in carbonaceous phyllite tunnels with ultralarge sections[J].Rock and Soil Mechanics,32(S2):556-561.
Zhao J J,Xie M L,Li T,et al.2017.Softening effect of phyllite with water saturation[J].Journal of Engineering Geology,25(6):1449-1454.
Zheng B.2015.Study on bedding failure mechanism of phyllite slope in Qin-Ba Mountain area[D].Xi'an:Chang'an University.
谌文武,林高潮,刘伟,等.2016.全风化灰绿色及红色泥岩物理力学性质对比研究[J].岩石力学与工程学报,35(12):2572-2581.
崔凯,吴国鹏,王秀丽,等.2015.不同水岩作用下板岩物理力学性质劣化实验研究[J].工程地质学报,23(6):1045-1051.
崔凯,吴国鹏,王秀丽,等.2016.泥石流沟道斜坡板岩气候环境响应行为与机制研究[J].岩石力学与工程学报,35(S1):2944-2951.
郭鹏.2015.白龙江流域降雨型泥石流成因机理研究[D].兰州:兰州大学.
姜永东,阎宗岭,刘元雪,等.2011.干湿循环作用下岩石力学性质的实验研究[J].中国矿业,20(5):104-107.
蒋瑜阳.2010.成九铁路泥石流形成条件与分布规律研究[D].成都:成都理工大学.
李克钢,吴勇,郑东普.2013.砂岩力学特性对干湿循环效应响应规律的试验研究[J].北京理工大学学报,33(10):1010-1014.
李克钢,郑东普,黄维辉.2013.干湿循环作用下砂岩力学特性及其本构模型的神经网络模拟[J].岩土力学,34(S2):168-173.
梁学站.2010.青藏高原东部边缘地区泥石流发育规律的对比研究[D].重庆:重庆交通大学.
刘传正,苗天宝,陈红旗,等.2011.甘肃舟曲2010年8月8日特大山洪泥石流灾害的基本特征及成因[J].地质通报,30(1):141-150.
罗根传,付宏渊,贺炜.2012.炭质页岩崩解特性的试验研究[J].中外公路,32(3):309-311.
庞茂康.2011.白龙江流域滑坡发育特征及其成因的地质环境条件研究[D].成都:成都理工大学.
邵明申,张中俭,李黎.2015.承德避暑山庄砂岩文物的基本性质和风化机理[J].工程地质学报,23(3):533-538.
王鹰,魏有仪,罗健.2004.隧道围岩中黄铁矿的氧化对隧道混凝土衬砌耐久性的影响研究[J].矿物岩石,24(1):39-42.
姚华彦,张振华,朱朝辉,等.2010.干湿交替对砂岩力学特性影响的试验研究[J].岩土力学,31(12):3704-3708.
姚华彦,朱大勇,周玉新,等.2013.干湿交替作用后砂岩破裂过程实时观测与分析[J].岩土力学,34(2):329-336.
余斌,杨永红,苏永超,等.2010.甘肃省舟曲8·7特大泥石流调查研究[J].工程地质学报,18(4):437-444.
原小帅,张庆松,李术才,等.2011.超大断面炭质千枚岩隧道新型支护结构长期稳定性研究[J].岩土力学,32(S2):556-561.
赵建军,解明礼,李涛,等.2017.饱水条件下千枚岩软化效应试验分析[J].工程地质学报,25(6):1449-1454.
郑斌.2015.秦巴山区千枚岩边坡顺层破坏机理研究[D].西安:长安大学.
Chen W W,Lin G C,Liu W,et al.,2016,Physical and mechanica properties of weathered green and red mudstones[J].Chinese Journal of Rock Mechanics and Engineering,35(12):2572-2581.
Cui K,Wu G P,Wang X L,et al.2015.Drying-wetting saturating experiments for deterioration of physical and mechanical properties of slate[J].Journal of Engineering Geology,23(6):1045-1051.
Cui K,Wu G P,Wang X L,et al.2016.Research on the behavior and mechanism of the slate from the slope at the gully of debris flow respond to climate environment[J].Chinese Journal of Rock Mechanics and Engineering,35(S1):2944-2951.
Cui K,Wu G P,Wang X L,et al.2017.Behaviour of slate following freeze-thaw and dry-wet weathering processes[J].Quarterly Journal of Engineering Geology and Hydrogeology,50(2):117-125.
Gokce M V,Ince I,Fener M,et al.2016.The effects of freeze-thaw(F-T)cycles on the G9dene travertine used in historical structures in Konya(Turkey)[J].Cold Regions Science and Technology,127:65-75.
Guo P.2015.The formation mechanism of debris flow in Bailong River Basin[D].Lanzhou:Lanzhou University.
Jiang Y D,Yan Z L,Liu Y X,et al.2011.Experimental study on mechanical properties of rock under the conditions of wet and dry cycles[J].China Mining Magazine,20(5):104-107.
Jiang Y Y.2010.Study on cause and distribution pattern of Debris flows along Chengdu-Jiu Zhaigou Railway[D].Chengdu:Chengdu University of Technology.
Li K G,Wu Y,Zheng D P.2013.Mechanical properties response of sandstone to cyclic drying-wetting effect[J].Transactions of Beijing Institute of Technology,33(10):1010-1014.
Li K G,Zheng D P,Huang W H.2013.Mechanical behavior of sandstone and its neural network simulation of constitutive model considering cyclic drying-wetting effect[J].Rock and Soil Mechanics,34(S2):168-173.
Liang X Z.2010.Comparative study of debris flow development law in the eastern edge of Qinghai-Tibet Plateau region[D].Chongqing:Chongqing Jiaotong University.
Liu C Z,Miao T B,Chen H Q.et al.2011.Basic feature and origin of the“8·8”mountain torrent-debris flow disaster happened in Zhouqu County,Gansu,China,Aug 8,2010[J].Geological Bulletin of China,30(1):141-150.
Luo G C,Fu H Y,He W.2012.Experimental study on the disintegration characteristics of carbonaceous shale[J].Journal of China and Foreign Highway,32(3):309-311.
Pang M K.2011.Study on the developing characteristics and genesis geological environmental conditions of landslides in the Bailongjiang River Basin[D].Chengdu:Chengdu University of Technology.
Schopfer M P J,Arslan A,Walsh J J,et al.2011.Reconciliation of contrasting theories for fracture spacing in layered rocks[J].Journal of Structural Geology,33(4):551-565.
Shao M S,Zhang Z J,Li L.2015.Properties and deterioration mechanism of sandstone blocks in Chengde royal buildings between 1703 and1792[J].Journal of Engineering Geology,23(3):533-538.
Wang Y,Wei Y Y,Luo J.2004.Research on oxidation of pyrite in tunnel host rock and its effect on durability of tunnel concrete linings[J].Journal of Mineralogy and Petrology,24(1):39-42.
Yao H Y,Zhang Z H,Zhu C H,et al.2010.Experimental study on mechanical properties of sandstone under cyclic drying and wetting[J].Rock and Soil Mechanics,31(12):3704-3708.
Yao H Y,Zhu D Y,Zhou Y X,et al.2013.Real-time observation and analysis of fracturing process of sandstone under cyclic drying and wetting[J].Rock and Soil Mechanics,34(2):329-336.
Yu B,Yang Y H,Su Y C,et al.2010.Research on the giant debris flow hazards in Zhouqu county,Gansu province on August 7,2010[J].Journal of Engineering Geology,18(4):437-444.
Yuan X S,Zhang Q S,Li S C,et al.2011.Study of long-term stability of new support structure in carbonaceous phyllite tunnels with ultralarge sections[J].Rock and Soil Mechanics,32(S2):556-561.
Zhao J J,Xie M L,Li T,et al.2017.Softening effect of phyllite with water saturation[J].Journal of Engineering Geology,25(6):1449-1454.
Zheng B.2015.Study on bedding failure mechanism of phyllite slope in Qin-Ba Mountain area[D].Xi'an:Chang'an University.
谌文武,林高潮,刘伟,等.2016.全风化灰绿色及红色泥岩物理力学性质对比研究[J].岩石力学与工程学报,35(12):2572-2581.
崔凯,吴国鹏,王秀丽,等.2015.不同水岩作用下板岩物理力学性质劣化实验研究[J].工程地质学报,23(6):1045-1051.
崔凯,吴国鹏,王秀丽,等.2016.泥石流沟道斜坡板岩气候环境响应行为与机制研究[J].岩石力学与工程学报,35(S1):2944-2951.
郭鹏.2015.白龙江流域降雨型泥石流成因机理研究[D].兰州:兰州大学.
姜永东,阎宗岭,刘元雪,等.2011.干湿循环作用下岩石力学性质的实验研究[J].中国矿业,20(5):104-107.
蒋瑜阳.2010.成九铁路泥石流形成条件与分布规律研究[D].成都:成都理工大学.
李克钢,吴勇,郑东普.2013.砂岩力学特性对干湿循环效应响应规律的试验研究[J].北京理工大学学报,33(10):1010-1014.
李克钢,郑东普,黄维辉.2013.干湿循环作用下砂岩力学特性及其本构模型的神经网络模拟[J].岩土力学,34(S2):168-173.
梁学站.2010.青藏高原东部边缘地区泥石流发育规律的对比研究[D].重庆:重庆交通大学.
刘传正,苗天宝,陈红旗,等.2011.甘肃舟曲2010年8月8日特大山洪泥石流灾害的基本特征及成因[J].地质通报,30(1):141-150.
罗根传,付宏渊,贺炜.2012.炭质页岩崩解特性的试验研究[J].中外公路,32(3):309-311.
庞茂康.2011.白龙江流域滑坡发育特征及其成因的地质环境条件研究[D].成都:成都理工大学.
邵明申,张中俭,李黎.2015.承德避暑山庄砂岩文物的基本性质和风化机理[J].工程地质学报,23(3):533-538.
王鹰,魏有仪,罗健.2004.隧道围岩中黄铁矿的氧化对隧道混凝土衬砌耐久性的影响研究[J].矿物岩石,24(1):39-42.
姚华彦,张振华,朱朝辉,等.2010.干湿交替对砂岩力学特性影响的试验研究[J].岩土力学,31(12):3704-3708.
姚华彦,朱大勇,周玉新,等.2013.干湿交替作用后砂岩破裂过程实时观测与分析[J].岩土力学,34(2):329-336.
余斌,杨永红,苏永超,等.2010.甘肃省舟曲8·7特大泥石流调查研究[J].工程地质学报,18(4):437-444.
原小帅,张庆松,李术才,等.2011.超大断面炭质千枚岩隧道新型支护结构长期稳定性研究[J].岩土力学,32(S2):556-561.
赵建军,解明礼,李涛,等.2017.饱水条件下千枚岩软化效应试验分析[J].工程地质学报,25(6):1449-1454.
郑斌.2015.秦巴山区千枚岩边坡顺层破坏机理研究[D].西安:长安大学.
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