某回填高度15m的边坡支护方案比选
Comparison and selection of a slope support scheme with backfilling height of 15m
何伟 1韦宏 1罗文峰1
作者信息
- 1. 华南理工大学建筑设计研究院有限公司,广州 510641
- 折叠
摘要
紧靠 15m高的边坡旁新建 4 层建筑,对边坡与建筑采用独立挡土、分开建设和合建联合挡土方式进行了多方案比较,具体对比了单建的高大扶壁式挡土墙、先回填再做永久桩锚支护方案以及合建的直径 1 000mm的群桩、抗滑桩+永久锚索方案和带双层卸荷平台的抗滑桩+锚索共 5 个方案.通过对上述多种方案的比选,最终采用了带双层卸荷平台的抗滑桩+锚索方案.YJK和MIDAS GTS两种软件对比计算表明,结构的侧向承载力和变形可有效控制.目前,此工程已如期实施,主体变形满足规范要求,整体实施效果良好.
Abstract
A new 4-story building was constructed immediately adjacent to a 15-meter-high slope,and various schemes were compared for the independent retaining of the slope and the building,including separate retaining,separate construction,and joint construction with retaining.Specifically,the comparison was made among five schemes:a single tall retaining wall,a scheme involving backfilling followed by permanent pile anchorage,a joint construction involving a group of 1 000mm diameter piles,anti-sliding piles with permanent anchor cables,and anti-sliding piles with anchor cables and double-layered unloading platforms.Through the comparative analysis of these schemes,the anti-sliding piles with anchor cables and double-layered unloading platforms were selected.Verification calculations conducted by using YJK and MIDAS GTS softwares indicate that the lateral bearing capacity and deformation of the structure could be effectively controlled.Presently,the project has been implemented as scheduled,the main deformation meet regulatory requirements,and overall implementation effectiveness is satisfactory.
关键词
山地建筑/单侧挡土体系/超高挡土体系/卸荷平台/桩锚Key words
mountainous architecture/single-side retaining system/ultra-high retaining system/unloading platform/pile anchoring引用本文复制引用
出版年
2024
NETL
NSTL
万方数据