预应力格网锚固技术-一种新的边坡治理加固技术  

Prestressed grid anchorage technology for slope and landslide treatment

作　　者：王荣鲁[1,2,3] 孟丽娟[1,2,3] 张辉 刘致彬[1,2,3] 

机构地区：[1]中国水利水电科学研究院,北京100038 [2]流域水循环模拟与调控国家重点实验室,北京100038 [3]水利部水工程建设与安全重点实验室,北京100038 [4]中国电力工程顾问集团西南电力设计院,四川成都610021

出　　处：《中国水利水电科学研究院学报》2016年第3期205-209,218,共6页Journal of China Institute of Water Resources and Hydropower Research

摘　　要：预应力格网锚固方法是用于边坡加固工程中的一种新型、可靠的工法。该技术采用压力分散型锚索,锚孔外伸绞线与上下左右相对应锚孔过来的绞线在中间部位对接张拉,省去了外锚墩,可重复张拉。它由无黏结钢绞线纵、横交叉布置成格网,节点处为锚索孔或张拉端,二者均呈梅花型布置。这种复合式边坡锚固结构,施工简便,它克服了以往钢筋混凝土框架梁锚固结构的易裂缝、易变形和施工困难等缺点,充分利用高强、低松弛无黏结钢绞线的强度,将轻质、柔性的受拉格网和压力分散型锚索结合成一个整体,能够得到更有效、更安全的锚固效果。以上优点将会使本项技术在边坡稳定治理中得到更为广泛的应用。Prestressed grid anchorage is a new and reliable engineering technology applied in slope andlandslide treatment. This technology utilizes pressure-dispersion tensile reinforcing bars,of which the wiresextending from anchor holes are butted with the relative wires from all direction in the middle position andthen tensioned together. Under this situation,outside anchor piers are not needed,and it can be tensionedrepeatedly. Both of grid and node showed a plum-type layout. This composite slope anchorage structure issimple for construction, which overcomes such disadvantages of cast reinforced concrete frame beams aseasy cracking, easy deformation and difficult construction, and ensure that anchoring effect can beachieved. Those advantages can get this technology to be applied in more slope treatment projects.

关 键 词：边坡稳定治理 预应力格网 压力分散型锚索 

分 类 号：TU43[建筑科学—岩土工程]