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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。
With the continuous increase and extensive use of high-rise buildings and tunnels, the basic burial depth will also increase according to the requirements of construction and use. The retaining wall of the deep foundation pit shall not only ensure the safe operation inside the foundation pit but also prevent the soil from moving around the foundation and the pit and ensure the normal operation of the buildings and road lines near the foundation pit. A variety of deep foundation pit support construction techniques continue to emerge, pile and anchor support is one of the more mature, safety factor of large craft. In this paper, by analyzing the characteristics of pile-anchor support and focusing on the mechanism of pile-anchor support, the paper focuses on the related technologies of construction technology and quality control, in order to give full play to the role of soil space support and timely obtain the displacement and deformation of the slope Constraints.