期刊文献+

浅析基坑监测在支护工程中的实际应用

On the Practical Application of Foundation Pit Monitoring in Support Engineering
下载PDF
导出
摘要 某工程地处漳州市战备大桥南侧、南大道与漳马路交接处之东南角,基坑开挖面积广及开挖深度较深的特点,所以基坑监测项目充分考虑工程及水文地质条件、基坑类别、支护结构的特点及变形控制要求的基础上来确定。除了常规的通过目视及借助其他工具的巡视检查外,主要用仪器监测,监测项目主要为深沉土体水平位移监测、竖向位移监测、水平位移监测、预应力锚索拉力监测及周围道路及管线水平及竖向位移等。本工程上层土体主要为填土、粉质粘土、淤泥、中砂、粘土、粗砂、残积粘性土等,在开挖基础深度范围内存在着透水性大,稳定性差的地层,泡水后极容易软化而发生坍塌。在基础土方及地下室施工过程中急需解决止水、增强土体粘结力,防止基坑周边土体侧滑,从而确保基坑支护结构稳定,达到基坑土方顺利开挖及基础工程顺利施工的目的。 The project is located on the south side of the city of Zhangzhou war preparation bridge, the southeast corner at the junc- tion of South Avenue and Zhangma Road, the foundation pit of which has characteristics of wide excavation area and depth, so the foundation pit monitoring item should be determined on the basis of full consideration of engineering and hydrogeological condi- tions, foundation classification, supporting structure and deforma- tion control requirement. In addition to routine inspection by visu- al inspection and other tools, it is mainly by equipment monitor- ing. This project is mainly used for monitoring equipment, the monitoring items of which are horizontal and vertical displacement monitoring for deep soil, tension monitoring for prestress anchor cable and horizontal and vertical displacement monitoring for sur- rounding roads and pipelines. The main upper soil layers in the project are filling soil, silty clay, mud, middle sand, coarse sand, and residual cohesive soil, so it is easy to collapse after soil layer with large permeability and poor stability being soaked in water. It is urgent to solute water stop, strengthen soil cohesion and prevent the soil around the pit sideslip, so as to ensure the stability of foun- dation pit supporting structure and to achieve the purpose that the excavation of foundation pit and construction works smoothly.
作者 彭江苏
出处 《西部探矿工程》 CAS 2017年第4期195-198,共4页 West-China Exploration Engineering
关键词 布点 基坑监测 工程应用 distribution foundation pit monitoring engineeringapplication
  • 相关文献

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部