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淹没式移动水射流的倾角对破土深度的影响实验研究
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Abstract:
本文以淹没式移动水射流为研究对象，通过实验分析在一定射流速度、移动速度、土体抗剪强度下，射流的倾角对于开沟破土深度的在相同射流能力下，改变射流倾角会略微影响开沟深度。基于LS-DYNA搭建移动射流破土开沟仿真模型，分析射流倾角对于破土开沟效果的影响，并得到存在最佳射流倾角的结论。搭建单喷嘴移动射流破土实验装置，进行了单喷嘴移动射流破土开沟实验，进一步验证了仿真得到的结论。
This paper takes the submerged mobile water jet as the research object, and analyzes the influence of the inclination angle of the jet on the depth of trenching and breaking through experiments under a certain jet speed, moving speed and soil shear strength. Based on LS-DYNA, the simulation model of mobile jet breaking and trenching is constructed to analyze the influence of jet inclination angle on the effect of breaking and trenching, and the conclusion that there is an optimal jet inclination angle is obtained. A single-nozzle mobile jet breaking experimental device was built, and a single-nozzle mobile jet breaking trenching experiment was carried out to further verify the conclusions obtained from the simulation.
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