underground system structure

The feasibility to simulate the initial earth stress of the large underground structure by using the algorithm of dynamic relaxation and system damping in LS-DYNA is investigated.

主要研究使用LS-DYNA的动力松弛算法和系统阻尼算法相结合来求解大型地下结构初始地应力状态的可行性。

The paper discussed the basic structure and functions of monitoring system of plank pressure based on embedded system underground, and introduced the key techniques to realize this system.

讨论了基于嵌入式系统的井下顶板压力监测系统的基本结构和所实现的功能，详细介绍了实现该系统的关键技术。

The paper briefly introduces the structure and design of the commonly steering system for underground loader at abroad.

简略介绍了国内外地下装载机常用的转向系统的结构与设计。