摘要
沉管灌注桩及振冲碎石桩施工时具有震动及挤土效应,当邻近污水主干管距离打桩点较近时,有必要对邻近污水主干管采取保护措施。根据工程实际状况,提出注浆法、隔震沟法、应力释放孔法等三种消除或减弱震动及挤土效应的方案,通过方案对比选择较佳设计方案,并在施工现场进行震动及挤土效应监测,对监测数据进行分析。根据实测及分析结果,提出消除震动及挤土效应的方法,可为其他类似工程实施提供借鉴。
Both tube-sinking cast-in-situ pile and vibro replacement gravel pile have soil vibration and compaction effect. When the distance between the main wastewater pipe and the pile point is rela- tively close, it is necessary to take measures to protect the main wastewater pipe under the vibration and soil compaction effect. According to the actual situation of the project, three ways to eliminate or weaken the vibration and soil compaction effect are proposed, such as grouting method, isolation ditch method and stress release hole method. After comparison of the schemes, the optimized design is selected, and the vibration and soil compaction effect is monitored in the construction site. Furthermore, the monitoring data are analyzed at the same time. According to the measured and analyzed results, the method for elim- inating vibration and soil compaction effect is proposed, which can provide references for other similar projects.
出处
《中国给水排水》
CAS
CSCD
北大核心
2017年第12期130-134,共5页
China Water & Wastewater
关键词
震动
挤土
隔震沟
应力释放孔
vibration
soil compaction
isolation ditch
stress release hole
