深基坑分区开挖工序调整及斜支撑施工技术研究

STUDIES ON THE PROCESS ADJUSTMENT OF DEEP FOUNDATION PIT PARTITION EXCAVATION AND CONSTRUCTION TECHNOLOGY OF INCLINED SUPPORTS

随着中国改革开放四十多年的不断发展,城市建设成为推动经济发展的引擎,上海属于长江三角洲地区,土质为河滩软土地基,在项目虹口区江湾镇街道HK0014–06号地块新建项目实施中,深基坑处于轻轨高架沿线且周边地理环境极其复杂,如何做到安全开挖、有效提高施工效率的分区开挖、优化开挖顺序、斜支撑的施工工艺措施及支撑监测等方面进行了阐述,使基坑施工安全顺利的达到预期目标,以期为类似项目提供交流和参考。

With the continuous development of China’s reform and opening up for more than 40 years,urban construction has become the engine to promote economic development.Shanghai belongs to the Yangtze River Delta region,and the soil foundation is soft by river beach.During the construction of the new project of block HK0014-06 Jiangwan Street Hongkou District,the deep foundation pit is located along the light rail and overpass,the surrounding environment is extremely complex.This article describes several aspects such as how to complete safe excavation,how to effectively improve the construction efficiency of partition excavation,how to optimize the excavation sequence,inclined support measures,support monitoring and so on,for making the foundation pit construction safety meanwhile achieving the expected goal.Hereby for exchange and references for similar construction projects.