摘要
全地下变电站成为解决中心城区变电站用地紧张的一种有效方案,城市地下变电站基坑开挖深度大,且距已有建筑物距离短后和施工场地狭小,基坑支护难度较大,应根据城市地面交通及周边环境状况、地质条件、埋置深度、工程造价及进度要求等因素综合选择支护方案和确定合理施工顺序,以保证开挖过程中基坑稳定及周边建(构)筑物的安全。
It is an effective solution to use underground substation to solve the problem of land tension for substations in central urban area. It is of great difficulty to retaining and protection the foundation excavation of urban underground substation for its relatively deep cutting depth,short distance to existing constructions and narrow construction site. The selection of supporting scheme and construction method of major structure shall comprehensively consider all the factors of urban ground transportation,neighboring environmental conditions,geological conditions,buried depth,construction costs,schedule target and the like. And it needs to determine the reasonable construction sequence and thus to assure the stabilization of the foundation excavation and the safety of surrounding constructions under the process of excavation.
出处
《广东土木与建筑》
2013年第9期30-32,共3页
Guangdong Architecture Civil Engineering
关键词
地下变电站
基坑支护
地下连续墙
内支撑
urban underground substation
foundation excavation
continuous concrete wall
inner support inner
