深基坑桩锚支护体系的应用

随着高层建筑及隧道工程的不断增加和广泛运用,根据构造及使用要求,基础埋深也随之增加.深基坑的护壁,不仅要保证基坑内能安全作业,而且要防止基底及坑外土体移动,保证基坑附近建筑物、道路管线的正常运行.各种深基坑支护的施工工艺不断产生,桩锚支护就是其中一种比较成熟,安全系数大的工艺.文章通过分析桩锚支护的特点,针对桩锚支护的机理,重点从施工工艺及质量控制的相关技术进行探讨,以期充分发挥土体的空间支护作用,使边坡位移和变形及时得到约束限制.

The Application of Pile-anchor Retaining to Deep Foundation Pit

With the increase and wide application of high-rise building and tunnel engineering,the depth of foundation calls for improvement according to the structure and operating requirement.Supporting structure for walls of deep foundation pit canguarantee safe operation,prevent the foundation collapse inside and outside,and make sure the security of buildings, roads and pipes nearby.Pile-anchor among various protecting construction techniques is a mature and safer one.This paper, according to piling and anchoring theories,mainly explores the related technique from the construction technique and quality control aspects to fully realize the supporting function of the ground space and to control in time the displacement and deformation of slopes.