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针对目前煤矿现场对新建井架的起吊过程仅凭经验和简单计算指导施工的问题,以大型钢结构井架的起吊为例,对井架的起吊过程进行了系统地分析与计算。通过建立井架起吊过程的力学模型对起吊过程中钢丝绳的拉力进行力学分析与理论计算,同时运用数学软件对井架起吊过程进行仿真,将井架起吊过程中钢丝绳拉力值的变化以曲线的形式直观地表达出来,和理论计算结果进行对比。理论计算结果和仿真计算结果的一致性验证了力学模型的正确性,可以用来评判井架起吊施工方案的可行性、合理性与可靠性,对于指导煤矿现场井架起吊施工具有一定的指导意义。
Aiming at the problem of lifting the new derrick at the coal mine site on the basis of experience and simple calculation, the lifting and derricking of the large steel derrick is taken as an example to systematically analyze and calculate the derrick lifting process. Through the establishment of mechanical model of derrick lifting process, the mechanical analysis and theoretical calculation of the tension of the steel wire rope during hoisting process are carried out. At the same time, math software is used to simulate the lifting process of derrick, and the change of tension value of derrick wire rope is graphically expressed in the form of curve Come out, and the theoretical calculation results are compared. The consistency between the theoretical calculation results and the simulation results verifies the correctness of the mechanical model and can be used to evaluate the feasibility, rationality and reliability of the derrick lifting construction scheme, which is of guiding significance for guiding the derrick lifting construction in a coal mine.