格宾-桩板墙泥石流组合拦阻结构模型试验研究  

Gabion-sheet pile wall structure of debris flow model test

作　　者：李慈航 吴红刚 陈小云[1,2] LI Cihang;WU Honggang;CHEN Xiaoyun(Postgraduate Department, China Academy of Railway Sciences, Beijing 100081, China;Northwest Research Institute Co. ,Ltd. of CREC,Lanzhou, Gansu 730000, China)

机构地区：[1]中国铁道科学研究院研究生部,北京100081 [2]中铁西北科学研究院有限公司,甘肃兰州730000

出　　处：《中国地质灾害与防治学报》2017年第4期71-76,共6页The Chinese Journal of Geological Hazard and Control

基　　金：基金项目:中铁科研院(科研)字2015-KJ026-Z026-03

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.

关 键 词：泥石流 格宾 桩板墙 模型试验 

分 类 号：U418.56[交通运输工程—道路与铁道工程]