CAJ | 학술논문

针对紧邻地铁隧道区间群深基坑中三坑相连、深坑居中且先浅后深的非常规开挖工况进行研究。提出4个施工措施保证此开挖工况基坑的安全可控：在深基坑地下连续墙周边增设观测井监控地下连续墙的止水效果，并作应急抽水之用；沿地铁隧道区间成排设置回灌井作为地铁隧道保护措施；在深基坑靠近住宅一侧设置回灌井保护房屋结构；对浅基坑已完成底板以下与深基坑共地下连续墙可能出现的渗漏，拟采用在坑外结构楼板加固区、底板上预留上下贯通排孔，阿特拉斯注浆机钻杆通过排孔直接插入底板下土体成孔注浆的方法，保证基坑内外水土的平衡稳定。
침대긴린지철수도구간군심기갱중삼갱상련、심갱거중차선천후심적비상규개알공황진행연구。제출4개시공조시보증차개알공황기갱적안전가공：재심기갱지하련속장주변증설관측정감공지하련속장적지수효과，병작응급추수지용；연지철수도구간성배설치회관정작위지철수도보호조시；재심기갱고근주택일측설치회관정보호방옥결구；대천기갱이완성저판이하여심기갱공지하련속장가능출현적삼루，의채용재갱외결구루판가고구、저판상예류상하관통배공，아특랍사주장궤찬간통과배공직접삽입저판하토체성공주장적방법，보증기갱내외수토적평형은정。
The content of this article aimed at proposing methods against the interval group in deep foundation excavation close to subway tunnel which are connected three excavation and the excavation of irregular condition in center that are first light after deep. At the same time, there are four protective measures in order to keep the security excavation and controllable conditions of the foundation excavation:firstly putting up an additional observation wells outside the excavation in order to observe sealing effect of the retention wall; secondly setting up arranged in a row along the intervals of subway tunnel as the protection measures of subway tunnel;thirdly setting up recharge wells near the residential side to protect the housing structure;at last for the diaphragm wall leakage under the shallow graves has completed the backplane board, more methods are used in order to ensure that confined water in and outside foundation excavation are balanced and steady like outside structure of floor, reserving linking up and down hole on the backplane board, Atlas note pulp drill rod directly inserting into geotechnical holes in the backplane to note syrup.