紧邻既有住宅建筑的深基坑支护及降水设计施工实例  

EXAMPLE OF DEEP FOUNDATION PIT SUPPORT AND PRECIPITATION DESIGN CONSTRUCTI ON ADJACENT TO EXISTING RESIDENTIAL BUILDINGS

作　　者：付宪章 武登辉 赵庆亮 叶胜林 马振 FU Xian-zhang;WU Deng-hui;ZHAO Qing-liang;YE Sheng-lin;MA Zhen(Shandong Jiankan Group Co.,Ltd.,250031,Ji'nan,China;Shandong Research Center of Foundation Pit and Slope,250031,Ji'nan,China)

机构地区：[1]山东建勘集团有限公司,济南250031 [2]山东省基坑与边坡工程研究中心,济南250031

出　　处：《建筑技术》2022年第2期177-180,共4页Architecture Technology

基　　金：山东省住房城乡建设科技计划项目(2018-K5-04,2017-K4-006)。

摘　　要：济南鼎峰中心项目基坑开挖深度为14.32~20.12m,根据场地周边建筑物情况分别采取复合土钉墙和桩锚支护形式,考虑到其中紧邻既有住宅建筑位置的开挖深度最大,采用双排桩+预应力锚索的支护形式,并采用高压旋喷桩截水帷幕+管井降水的地下水控制方案,经开挖验证支护及降水效果良好。This paper introduces the examples of foundation pit support and precipitation design and construction of Jinan Dingfeng Center Project. The excavation depth of the foundation pit is 14.32~20.12 m. According to the surrounding buildings, the project adopts composite soil nail wall and pile anchor support form, in which double-row piles are adopted in the vicinity of existing residential buildings. Prestressed anchor cable support form, and the groundwater control scheme of high-pressure jet pile + pipe well precipitation is adopted. After excavation verification, the support and precipitation effect is good, which can be promoted and applied in similar projects.

关 键 词：深基坑 高压旋喷桩 复合土钉墙 桩锚 双排桩 

分 类 号：TU753[建筑科学—建筑技术科学]