上海宝山钢铁总厂在钢筋混凝土桩打入试验及垂直静载荷试验中,学习了日本的先进试桩技术,并全部采用国产先进仪器设备,测试工作集中在测试室内摇控进行。在测试中采用新型的电测百分表,这种表能将桩的沉降变化转变为电量变化,通过电缆传送到测试室,用多点式自动数字应变仪自动测定数值并直接打印记录输出。为了及时观察现场情况,又采用现场摄像机,在测试室内进行电视观察。此外还采用了 Shanghai Baoshan Iron and Steel Plant studied the advanced test pile technology of Japan in the test of reinforced concrete pile penetration and the vertical static load test, and all domestic advanced equipment was used. The test work was focused on the remote control of the test room. In the test, a new type of electronic dial gauge was used. This meter can convert the settlement change of the pile into the change of electric quantity and send it to the test room through the cable. The multi-point automatic digital strain gauge automatically measures the value and prints the record output directly. In order to observe the scene in time, a live camera was used to perform television observation in the test room. Also used