首页 | 本学科首页   官方微博 | 高级检索  
     检索      

主动减压超前支护结构关键问题分析
引用本文:王培勇,刘元雪,冉仕平,张正波.主动减压超前支护结构关键问题分析[J].重庆大学学报(自然科学版),2011,34(3):126-131.
作者姓名:王培勇  刘元雪  冉仕平  张正波
作者单位:王培勇,刘元雪,WANG Pei-yong,LIU Yuan-xue(后勤工程学院,军事建筑工程系,重庆,401331);冉仕平,张正波,RAN Shi-ping,ZHANG Zheng-bo(西藏自治区交通厅,西藏,拉萨,850000)
基金项目:国家自然科学基金,重庆市自然科学基金
摘    要:针对边坡工程中超前支护结构未充分发挥岩土体自身抗剪能力的问题,通过对支护结构与边坡体耦合作用机理的分析,提出了一种主动减压超前支护结构型式,主要由柔性填料和超前支护结构组成.柔性填料的设置和厚度是主动减压超前支护结构设计的两个关键问题.一方面,柔性填料的设置在支护施工时要保证主动减压超前支护结构两个组成部分互不影响;另一方面,柔性填料的设计厚度要能保证边坡岩土体充分发挥自身抗剪能力,使得边坡体下滑推力由目前超前支护结构独自承担向超前支护结构和岩土体共同承担转变,此时超前支护结构承受的推力最小,从而达到主动减压的效果.最后以工程实例说明了柔性填料厚度的计算过程,得到了比较合理的计算结果.

关 键 词:边坡工程  主动减压  柔性填料  超前支护  应变软化  施工
收稿时间:2010/10/24 0:00:00

Analysis on key problems of initiative decompression pre-reinforced structure
WANG Pei-yong,LIU Yuan xue,RAN Shi ping and ZHANG Zheng-bo.Analysis on key problems of initiative decompression pre-reinforced structure[J].Journal of Chongqing University(Natural Science Edition),2011,34(3):126-131.
Authors:WANG Pei-yong  LIU Yuan xue  RAN Shi ping and ZHANG Zheng-bo
Institution:WANG Pei-yong1,LIU Yuan-xue1,RAN Shi-ping2,ZHANG Zheng-bo2(1.Department of Architecture and Civil Engineering,Logistical Engineering University,Chongqing 401331,P.R.China,2.Communication Department of Tibet Municipality,Lasa,Tibet 850000,P.R.China)
Abstract:In slope engineering,the shear resistance of rock and soil can never be exerted themselves by general pre-reinforced structure,through the coupling mechanism between reinforced structure and slope,an initiative decompression pre-reinforced structure consists of soft stuffing and pre-reinforced structure is presented.The setting and thickness of soft stuffing are both key questions during the design of initiative decompression pre-reinforced structure.On one hand,the setting of soft stuffing assure that part...
Keywords:slope engineering  initiative decompression  soft stuffing  pre-reinforced structure  strain softening  construction  
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《重庆大学学报(自然科学版)》浏览原始摘要信息
点击此处可从《重庆大学学报(自然科学版)》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号