跟管取芯锚索成孔技术在深基坑支护工程中的应用

APPLICATION OF CORE DRILLING AND ANCHOR CABLE DRILLING TECHNOLOGY IN DEEP FOUNDATION PIT SUPPORT ENGINEERING

为了提高在深基坑支护工程勘察过程中获取地层信息的完整性,以建筑工程深基坑支护工程的某一建设场地为例,提出基于跟管取芯锚索成孔技术的建筑工程深基坑支护工程勘察方法。通过附加应力法,确定深基坑支护工程勘探深度,按照勘测范围布置工程勘探点,利用跟管取芯锚索成孔技术张拉锁定锚索,实现建筑工程深基坑支护工程勘察。最终获取的勘察结果与人工勘察结果相同,由此也证明了跟管取芯锚索成孔技术在获取地层信息方面具有较高的完整性,故其具有较好的应用效果。

In order to improve the integrity of obtaining geological information during the survey process of deep foundation pit support engineering,a survey method for deep foundation pit support engineering in construction engineering is proposed based on the drilling technology of core anchor cables with follow-up pipes,taking a construction site of a deep foundation pit support engineering as an example.By using the additional stress method,the exploration depth of deep foundation pit support engineering is determined,and the engineering exploration points are arranged according to the survey range.The anchor cable is tensioned and locked using the core anchor cable drilling technology with the pipe,achieving the exploration of deep foundation pit support engineering in construction engineering.The final survey results obtained are the same as those obtained from manual surveys,which also proves that the core drilling and anchor cable drilling technology with pipes has high integrity in obtaining geological information,and therefore has good application effects.