木桥沟渡槽桩基静荷载试验技术研究

Research on Static Load Test Technology of Pile Foundation of Muqiaogou Aqueduct

桩基静荷载试验得出单桩轴向端承力是检测桩基单桩竖向承载力是否满足设计要求,并对桩基质量进行评价的最行之有效的方法之一。通过对木桥沟渡槽单桩竖向静荷载试验技术研究,虽然测试的数据精确可靠,且现场操作较为直观,但做试验时要从荷载大小、桩长、场地布置、进场条件等统筹考虑,费时、费力、费钱,且安全风险较高,因此,采用何种方式对桩基进行单桩竖向静荷载试验必须提前规划,提前准备,结合现场实际综合考虑。

The static load test of pile foundation is one of the methods to check whether the vertical bearing capacity of single pile meets the design requirements and to evaluate the quality of pile foundation.The vertical static load test technique of single pile for Muqiaogou aqueduct is studied in this paper.Although the test data are accurate and reliable,and the field operation is intuitive,comprehensive consideration should be given to load size,pile length,site arrangement and site entry conditions.This is time-consuming,laborious,costly and has a high safety risk.Therefore,it is necessary to plan in advance and prepare in advance for the vertical static load test of single pile foundation in combination with the actual situation on site.