基于电液比例控制的围岩加载超高压液压系统的研制

Development of the Super High Pressure Hydraulic System for the Surrounding Rock Loading Based on Electro-hydraulic Proportional Control

为了满足某煤矿科研单位测试围岩混凝土桩柱的承载能力并记录其力学性能数据的要求,专门研制一台围岩加载试验测试设备。该设备能测定长6 000 mm、最大直径1 400 mm的圆筒状围岩混凝土,以便研究煤矿巷道或隧道围岩混凝土的力学性能。测试时采取液压缓慢连续加载的方式。

To meet the requirements of a mine scientific research unit that concrete pile bearing capacity of surrounding rock should be tested and data of mechanical properties should be recorded, a test equipment was developed. The equipment could be used to measure cylindrical rock mass concrete with 6 000 mm length, 1 400 mm diameter to study mechanics performance of concrete in coal mine roadway or tunnel surrounding rock. Test load was loaded by hydraulic slow continuous loading ways.