单对水平支撑TBM支撑推进协调控制研究

发布时间：2019-01-26 20:01

【摘要】：为使单对水平支撑硬岩隧道掘进机(TBM)撑靴支撑系统和推进系统协调从而具有更高的复杂地质适应性,提出TBM支撑推进协调控制系统。建立TBM支撑推进机构力学模型,根据模型推导推进缸压力与撑靴支撑缸压力的理论最优关系;设计一种TBM支撑推进协调控制液压系统,利用AMESim仿真软件对液压系统进行动态仿真分析,并以某工程地段实际推进压力谱为标准对该系统进行有效性分析。研究结果表明:相同推进位移下,撑靴支撑缸压力理论最优值与推进缸压力近似呈线性正相关;系统的撑靴支撑缸压力曲线能较好地跟踪其理论设定曲线而与推进压力及位移相协调,且其最大相对误差与均方误差分别为1.45%和0.05 MPa,小于实际工程中的最大相对误差1.72%与均方误差0.12 MPa,可见所建立的支撑推进协调控制系统有效。
[Abstract]:In order to coordinate the support system of (TBM) boot and propulsion system of single pair horizontal braced hard rock tunnel boring machine, a coordinated control system of TBM bracing propulsion is proposed in order to have more complex geological adaptability. The mechanical model of TBM bracing propulsive mechanism is established, and the theoretical optimal relationship between propulsive cylinder pressure and boot support cylinder pressure is deduced according to the model. A kind of hydraulic system for coordinated control of TBM support propulsion is designed. The dynamic simulation analysis of the hydraulic system is carried out by using AMESim simulation software, and the validity of the system is analyzed according to the actual propulsion pressure spectrum in a certain engineering area. The results show that the theoretical optimum value of the supporting cylinder pressure is approximately linear positive correlation with the propulsion cylinder pressure under the same propelling displacement. The pressure curve of the supporting cylinder of the system can track the theoretical setting curve well and coordinate with the propelling pressure and displacement. The maximum relative error and mean square error are 1. 45% and 0. 05 MPa, respectively. Compared with the maximum relative error of 1.72% and the mean square error of 0.12 MPa, the coordinated control system is effective.
【作者单位】：浙江大学流体动力与机电系统国家重点实验室;
【基金】：国家高技术研究发展计划(863计划)项目(2012AA041803) 国家重点基础研究发展计划(973计划)项目(2013CB035404)~~
【分类号】：U455.31

【相似文献】