格宾-桩板墙泥石流组合拦阻结构模型试验研究
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摘要
近年来,我国大多数地区的泥石流治理工程采用了桩板墙拦挡结构或是碎石格宾结构,但很少有人将它们结合使用来提高拦挡能力。本文基于泥石流模型试验,设置了三层格宾和一道桩板墙,组成了格宾-桩板墙组合结构。格宾-桩板墙组合结构中格宾石笼坝的迎水面呈阶梯型,背水面与桩板墙垂直接触,坝体采用石笼单体堆砌而成,宽度从下到上依次为30 cm、20 cm、10 cm,单体之间用绞合钢丝形成可靠连接,按每层15 cm的高度堆砌形成格宾坝,增强坝体稳定性。背水面与桩板墙垂直接触,一方面可以与坝体形成一个整体结构,防止格宾石笼单体的滑移和倾覆,增强结构的稳定性,以抵抗更大地冲击力,另一方面呈阶梯状布置的格宾石笼也可以削弱泥石流作用在桩板墙上的动能。最后通过分析被拦物源的级配组成,得出格宾-桩板墙拦阻结构的拦阻效果明显,既有快速排水的优点,也能拦截大量固体物质。
In recent years,most areas of our country debris flow control project using the sheet pile wall blocking structure or stone gabion structure,but very few people use the composite structure to improve the blocking ability. In this paper,based on the experimental model of debris flow,we set up three layers of gabion and a sheet pile wall,composed of composite structure. In Gabion-Sheet Pile Wall composite structure,the surface of the Gabion dam is stepped,back surface vertical contact with sheet pile wall,the dam body is made up of a single cage,width from top to bottom are 30 cm,20 cm,10 cm,with the formation of single stranded wire between the reliable connection,according to the height of each layer of the 15 cm stack to form gabion dam to enhance the stability of the dam. The back surface of the water vertical contact with the pile wall on the one hand,it can form a whole structure with the dam body,the prevention and control of gabion material single sliding and overturning,enhance the stability of the structure,In order to resist the greater impact,on the other hand is the kinetic energy of gabion material ladder arrangement can also weaken the role of the debris flow in sheet pile wall. Finally,through the analysis of graded provenance was stopped,the gabion structure-pile wall arresting arresting effect is obvious,not only has the advantages of rapid drainage,can intercept a large number of solid materials.
In recent years,most areas of our country debris flow control project using the sheet pile wall blocking structure or stone gabion structure,but very few people use the composite structure to improve the blocking ability. In this paper,based on the experimental model of debris flow,we set up three layers of gabion and a sheet pile wall,composed of composite structure. In Gabion-Sheet Pile Wall composite structure,the surface of the Gabion dam is stepped,back surface vertical contact with sheet pile wall,the dam body is made up of a single cage,width from top to bottom are 30 cm,20 cm,10 cm,with the formation of single stranded wire between the reliable connection,according to the height of each layer of the 15 cm stack to form gabion dam to enhance the stability of the dam. The back surface of the water vertical contact with the pile wall on the one hand,it can form a whole structure with the dam body,the prevention and control of gabion material single sliding and overturning,enhance the stability of the structure,In order to resist the greater impact,on the other hand is the kinetic energy of gabion material ladder arrangement can also weaken the role of the debris flow in sheet pile wall. Finally,through the analysis of graded provenance was stopped,the gabion structure-pile wall arresting arresting effect is obvious,not only has the advantages of rapid drainage,can intercept a large number of solid materials.
引文
[1]王秀丽,关彬林,李俊杰.泥石流块石冲击下新型钢管混凝土桩林坝“品”单元动力响应分析[J].中国地质灾害与防治学报,2015,26(2):69-75.WANG Xiuli,GUAN Binlin,LI Junjie.Dynamic response analysis of"trefoil”-shap unit of concretefilled steel tubular piles under impact of big stone in debris flow[J].The Chinese Journal of Geological Hazard and Control,2015,26(2):69-75.
[2]吴斌,许建杰.雅泸高速公路舍克尼罗沟泥石流特征研究及其治理实践[J].公路交通科技:应用技术版,2011(8):13-16.WU Bin,XU Jianjie.Study on characteristics of debris flow and its governance practice in Shekeni Luo Gou Ya Lu highway[J].Highway Tra ITic Science and Technology:Technology Edition,2011(8):13-16.
[3]祁龙,高守义.甘家沟泥石流特征及其防治对策[J].水土保持通报,1994(5):58-63.QI long,GAO Shouyi.Bulletin of soil and water conservation Gan Jia Gou debris flow characteristics and countermeasures of[J].,1994(5):58-63.
[4]胡向德,毕远宏,魏新平,等.舟曲县三眼峪沟泥石流灾害治理工程分析[J].水土保持通报,2012,32(3):267-270.HU Xiangde,BI Yuanhong,WEI Xinping,et al.Zhouqu County three valley debris flow disaster control engineering analysis[J].Bulletin of Soil and Water Conservation,2012,32(3):267-270.
[5]陈循谦.云南大桥河的泥石流拦挡坝[J].水土保持通报,1981(3):54-59.CHEN Xunqian.Yunnan Bridge River dam against debris flow[J].Bulletin of Soil and Water Conservation,1981(3):54-59.
[6]张亚飞,徐光黎,谢书萌,等.格宾石笼拦挡坝在玉树地震灾区泥石流治理工程中的应用[J].安全与环境工程,2013,20(5):11-14.ZHANG Yafei,XU Guangli,XIE Shumeng,et al.Gabion material blocking dam in Yushu earthquake debris flow control engineering application of[J].Aafety and Environmental Engineering,2013,20(5):11-14.
[7]黄向京,林伟平.格宾柔性挡墙在孝子店滑坡处治中的应用研究[J].路基工程,2009(1):34-35.HUANG Xiangjing,LIN Weiping.Application research of Gabion regaining wall in Xiaozidian landslide treatment[J].Subgrade Engineering,2009(1):34-35.
[8]李宇,陈尧隆.格宾石笼结构的劣性及其补强措施[J].水土保持通报,2008,28(1):42-45.LI Yu,CHEN Yaolong.Weaknesses of Gabion Material Structure and Its Remedial Measures[J].Bulletin of Soil and Water Conservation,2008,28(1):42-45.
[9]中铁西北科学研究院有限公司勘察设计分公司.格宾-桩板式泥石流拦挡结构.中国,2016.Survey and Design Branch of Northwest Research Institute Co.,Ltd.of CREC.Gabion-sheet Pile Wall Structure[R].2016.
[10]中铁西北科学研究院有限公司勘察设计分公司.一种多模块可调的泥石流模型试验系统:中国,201620864002.X.2016.08.11Survey and Design Branch of Northwest Research Institute Co.,Ltd.of CREC.Multimode adjustable mud-rock flow model test system:China,201620864002.X.2016.08.11.
[2]吴斌,许建杰.雅泸高速公路舍克尼罗沟泥石流特征研究及其治理实践[J].公路交通科技:应用技术版,2011(8):13-16.WU Bin,XU Jianjie.Study on characteristics of debris flow and its governance practice in Shekeni Luo Gou Ya Lu highway[J].Highway Tra ITic Science and Technology:Technology Edition,2011(8):13-16.
[3]祁龙,高守义.甘家沟泥石流特征及其防治对策[J].水土保持通报,1994(5):58-63.QI long,GAO Shouyi.Bulletin of soil and water conservation Gan Jia Gou debris flow characteristics and countermeasures of[J].,1994(5):58-63.
[4]胡向德,毕远宏,魏新平,等.舟曲县三眼峪沟泥石流灾害治理工程分析[J].水土保持通报,2012,32(3):267-270.HU Xiangde,BI Yuanhong,WEI Xinping,et al.Zhouqu County three valley debris flow disaster control engineering analysis[J].Bulletin of Soil and Water Conservation,2012,32(3):267-270.
[5]陈循谦.云南大桥河的泥石流拦挡坝[J].水土保持通报,1981(3):54-59.CHEN Xunqian.Yunnan Bridge River dam against debris flow[J].Bulletin of Soil and Water Conservation,1981(3):54-59.
[6]张亚飞,徐光黎,谢书萌,等.格宾石笼拦挡坝在玉树地震灾区泥石流治理工程中的应用[J].安全与环境工程,2013,20(5):11-14.ZHANG Yafei,XU Guangli,XIE Shumeng,et al.Gabion material blocking dam in Yushu earthquake debris flow control engineering application of[J].Aafety and Environmental Engineering,2013,20(5):11-14.
[7]黄向京,林伟平.格宾柔性挡墙在孝子店滑坡处治中的应用研究[J].路基工程,2009(1):34-35.HUANG Xiangjing,LIN Weiping.Application research of Gabion regaining wall in Xiaozidian landslide treatment[J].Subgrade Engineering,2009(1):34-35.
[8]李宇,陈尧隆.格宾石笼结构的劣性及其补强措施[J].水土保持通报,2008,28(1):42-45.LI Yu,CHEN Yaolong.Weaknesses of Gabion Material Structure and Its Remedial Measures[J].Bulletin of Soil and Water Conservation,2008,28(1):42-45.
[9]中铁西北科学研究院有限公司勘察设计分公司.格宾-桩板式泥石流拦挡结构.中国,2016.Survey and Design Branch of Northwest Research Institute Co.,Ltd.of CREC.Gabion-sheet Pile Wall Structure[R].2016.
[10]中铁西北科学研究院有限公司勘察设计分公司.一种多模块可调的泥石流模型试验系统:中国,201620864002.X.2016.08.11Survey and Design Branch of Northwest Research Institute Co.,Ltd.of CREC.Multimode adjustable mud-rock flow model test system:China,201620864002.X.2016.08.11.