一种φ630直埋管抗压强度与轴向滑动试验装置

A test device of compressive strength and axial sliding of φ630 directly-buried pipe

针对现有直埋夹套管总体抗压强度与轴向滑动试验装置普遍采用手动装卸砂、手动加载的特点,给出了规格为?630直埋夹套管总体抗压强度与轴向滑动试验装置的设计方案与工作原理,其主要由砂箱、液压加载装置、推拉力试验机、升降加砂装置、送管装置5个部分组成。砂箱底部设有出砂口,试验结束后,打开砂箱底部挡板,可将细砂引入其侧下方升降装置的储砂箱中,升降加砂装置可将储砂箱运到砂箱侧上方供再次试验时使用,液压加载装置可自动为砂箱加载,保证试验外管承受均匀、适当的载荷。该装置符合国家有关法规标准的要求,能实现自动装卸砂,自动为砂箱加载。(图8,表2,参9)

In view of the situation of manual handling sand and manual loading of the current general compressive strength and axial sliding test devices for directly-buried pipe, the paper gives the design scheme and working principle of general compressive strength and axial sliding of φ630 directly-buried pipe, the experiment set-up includes 5 parts, namely flask, hydraulic loading installation, push-pull effort tester, lifting adding sand device and feeding pipe device. There is a sand flow opening at the bottom of the flask, after the test, opening the dam-board at the bottom of flask allows the fine sand to flow to the storage flask of the lifting device at its low side, lifting sand adding device can transport the storage flask by the low side of flask to prepare for the next test, hydraulic loading unit can load the flask automatically and ensure that test extemal tube bears uniform and proper load. The device accords with requirements of related national regulations and standards, and can realize handling sand and loading flask automatically. （8 Figures, 2 Tables, 9 References）