在建筑物地基勘探中,过去一直沿用钻探——取样——化验——查表等程序,不仅劳动强度大,工作效率低,勘测周期长,而且不能充分发挥地基承载能力。交通部第三铁路设计院在学习国内外触探技术基础上,于1969年设计试制了油压静力触探仪。它利用液压油缸将贴有电阻丝应变片 In the ground-based exploration of buildings, the drilling, sampling, laboratory-checking and other procedures have been used in the past. They not only have high labor intensity, low work efficiency, long survey period, but also can not fully display the bearing capacity of foundation. The Third Railway Design Institute of the Ministry of Communications, based on the study of domestic and overseas tentative technologies, designed and manufactured a hydraulic hydrostatic exploration device in 1969. It uses a hydraulic cylinder will be attached to the resistance wire strain gauge