土钉基坑支护有限元分析与信息化监测施工技术在工程中的应用  

FEM Analysis of Soil Nailing Support and Application of IT Monitoring in Construction

作　　者：杨强 

机构地区：[1]茂名建筑集团第二有限公司,茂名525000

出　　处：《国外建材科技》2007年第3期123-125,共3页Science and Technology of Overseas Building Materials

摘　　要：土钉墙支护技术是一种柔性的被动受力支护技术,通过土钉来改善临近开挖面附近土体强度,从而达到支护目的。由于该技术涉及到钉土相互作用、群钉效应、土拱效应、应力路径等问题,因此其机理较刚性的被动受力技术更为复杂,对于大多数问题很难用解析方法来解决。有限元分析系统对土钉支护结构的优化设计和安全稳定设计得到较好的解决。对基坑变形、土钉内力测试、边坡位移作信息化监测,动态控制位移发展,可以确保基坑边坡的安全。Soil nailing is a soft and passive support technology that works by improving the soil strength through soil nailing and involved problems in the interaction of soil nails, nails effect, soil arching effect, and load stress path. Due to such complexity, it is often difficult to solve the problems by analysis. FEM analysis provides a solution for the optimal design and safety stability of soil nailing support structure. It helps to ensure the safety of the slide slope through monitoring the deformation in the ditch, inner force testing of soil nail and slope displacement and it helps to contain the displacement.

关 键 词：土钉墙 支护技术 有限元分析 信息化监测 

分 类 号：TU753[建筑科学—建筑技术科学]