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中南大学学报(自然科学版)

Journal of Central South University

第48卷    第3期    总第271期    2017年3月

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文章编号:1672-7207(2017)03-0666-09
单对水平支撑TBM支撑推进协调控制研究
饶云意,龚国芳,杨华勇

(浙江大学 流体动力与机电系统国家重点实验室,浙江 杭州,310027)

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。

 

关键字: 单对水平支撑硬岩隧道掘进机;支撑推进协调控制;力学模型;液压系统

Coordinated control of gripper and thrust system for single gripping TBM
RAO Yunyi, GONG Guofang, YANG Huayong

State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, China

Abstract:In order to coordinate the gripper and thrust system of single gripping hard rock tunnel boring machine (TBM) and get higher complex geology adaptability, a gripper and thrust coordinated control system was designed. The mechanical model of TBM gripper and thrust was proposed, the theoretical optimal interrelation between gripper cylinder and thrust cylinder pressure was derived from it. A TBM hydraulic system coordinating gripper and thrust cylinder was designed, dynamic simulation analyses were performed with AMESim and the validity analysis was based on the thrust pressure spectrum of practical engineering. The results indicate that there is an approximate positive correlation between the theoretical optimal gripper cylinder pressure and thrust cylinder pressure. The gripper cylinder pressure curve determined by thrust cylinder pressure and displacement tracks the theoretical setting curve accurately, and its maximum relative error and mean square error are 1.45% and 0.05 MPa, which are superior to 1.72% and 0.12 MPa in the practical engineering. Therefore, the TBM gripper and thrust system are coordinated, and the new hydraulic system is effective.

 

Key words: single gripping TBM; coordinated control of gripper and thrust system; mechanical model; hydraulic system

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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