地面力学参数综合测试系统设计与试验
发布时间：2018-08-24 18:40
【摘要】：为了改进贝氏仪不依赖大型设备时测试范围的局限性和地面力学参数测试手段的分散多样性,设计了一种室内外两用的地面力学参数综合测试系统。测试系统贯入、扭转过程互不干涉,实现测试及数据处理的独立性。可选择电动机驱动或手动驱动。借助丝杠升降机传动,仪器具有较高的运行控制精度和测试量程。系统借助拉线位移传感器和力、扭矩传感器可实时同步获取纵深行进动态信息、土壤承压力和土壤抗剪切力等信息,可实现计算机远程控制和数据采集记录及处理自动化。实验室压实制备湿润砂土,通过剪切盘剪切试验得砂土内聚力为3.14 kPa,内摩擦角为38.2°;通过压板试验得砂土变形指数为0.963,粘聚变形模量为178.73 kN/m~(n+1),摩擦变形模量为11 908.40 kN/m~(n+2)。试验表明,该仪器具有较高的可靠性和实用性。
[Abstract]:In order to improve the limitation of the test range and the diversity of the test methods of the ground mechanical parameters when the Bayesian instrument does not depend on large equipment, an indoor and outdoor comprehensive test system for the ground mechanical parameters is designed. With the help of the pull-line displacement sensor and the torque sensor, the system can acquire the dynamic information of the depth, the soil pressure and the soil shear resistance in real-time synchronously, and can realize the computer remote control and data acquisition and recording. The cohesion of sandy soil is 3.14 kPa and the angle of internal friction is 38.2 degrees. The deformation index of sandy soil is 0.963, the modulus of cohesion deformation is 178.73 kN/m~ (n+1) and the modulus of friction deformation is 11 908.40 kN/m~ (n+2). The test results show that the instrument has higher cohesion and friction modulus. Reliability and practicality.
【作者单位】： 军械工程学院火炮工程系;
【基金】：国家自然科学基金项目(51575523) 军内科研项目
【分类号】：S152.9;S237
本文编号：2201696
[Abstract]:In order to improve the limitation of the test range and the diversity of the test methods of the ground mechanical parameters when the Bayesian instrument does not depend on large equipment, an indoor and outdoor comprehensive test system for the ground mechanical parameters is designed. With the help of the pull-line displacement sensor and the torque sensor, the system can acquire the dynamic information of the depth, the soil pressure and the soil shear resistance in real-time synchronously, and can realize the computer remote control and data acquisition and recording. The cohesion of sandy soil is 3.14 kPa and the angle of internal friction is 38.2 degrees. The deformation index of sandy soil is 0.963, the modulus of cohesion deformation is 178.73 kN/m~ (n+1) and the modulus of friction deformation is 11 908.40 kN/m~ (n+2). The test results show that the instrument has higher cohesion and friction modulus. Reliability and practicality.
【作者单位】： 军械工程学院火炮工程系;
【基金】：国家自然科学基金项目(51575523) 军内科研项目
【分类号】：S152.9;S237
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