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上河苑二期深基坑,因施工原因使得紧邻18F建筑群一侧的坑壁出现较大变形。如何尽量减小扰动现有支护体系的情况下,采取有效的抢险加固方案进行加固,是非常紧迫和关键的。首先,对工程概况和现有支护体系进行了简要介绍。接着,分析了出现险情的原因。接下来,分析比选了一系列可能的加固措施的优劣,决定采用理论体系并不丰富,亦缺少相关工程经验的地锚拉结处理方法。最后,对所采用的地锚拉结方案体系做了详细介绍。根据实施效果看,所采取方案是完全可行的,可以为同类工程提供参考和借鉴。
On the River Court Phase II deep foundation pit, due to construction reasons near the 18F side of the pit wall appears larger deformation. How to minimize the disturbance to the existing support system, and adopt an effective rescue and reinforcement program to reinforce it is very urgent and critical. First, a brief overview of the project overview and existing support system. Then analyzed the reasons for the emergence of the danger. Next, the advantages and disadvantages of a series of possible reinforcement measures are analyzed and compared, and the theoretical system is not rich enough. There is also a lack of methods for anchoring and anchoring with relevant engineering experience. Finally, the system of ground anchor pull scheme adopted is introduced in detail. According to the implementation effect, the plan adopted is completely feasible and can provide reference and reference for similar projects.