受力条件恶化严重抑制着软岩巷道支架支撑能力的发挥。
Poor loading condition will severely limit the supporting capacity of the supports in soft strata.
在巷道金属支架的设计与计算中，不但要对结构进行强度和刚度计算，而且还要进行稳定性的验算。
In designing and calculating the tunnel metallic support, not only the structure's strength and stiffness should be calculated, but also the stability should be checked.
结果表明，利用有限元法分析巷道金属支架的稳定性是可行的。
The results show that it is feasible to use FEM to analyze the stability of the metallic support.
目前软岩支护问题突出，在一些软岩巷道中，用于支护的u型钢支架破坏比较严重，本文对支架进行了结构力学分析，并从支架自身结构方面对破坏原因进行了分析。
Through the structural mechanics analysis of U-shaped steel support widely used in soft-rock supporting, the author has found out the failure causes from the support structure itself.
通过对ANSYS模型建立和网格划分模块的系统分析，结合巷道支护经验，找出了对U 29型钢可缩性支架进行模拟计算的方法。
Through systematic analysis of ANSYS modelling and meshing module, incorporation roadway design experience, a simulation calculation method on U29-type steel flexible support was found out.
寺河矿综采工作面巷道采用顺序开采的回采方式。选用7200/23/38 A型垛式支架对巷道进行超前支护，实践中提出了支护过程中存在的几点问题并提出了改进意见。
Sequential mining is utilized in the fully-mechanized face in Sihe mine. 7200/23/38A chock support is used in entry, some problems on its usage and related improvement opinions are put foreward.
目前，我国矿山在极近距煤层开采过程中，下部煤层开采时，顶板遭受损伤，工作面及巷道顶板易于出现冒顶、漏顶现象，严重时造成支架埋压；
Today during the mining process in contiguous seams, there are many factors leading to hidden danger, such as: the top board being tortured during the exploitation of the lower seam;
目前，我国矿山在极近距煤层开采过程中，下部煤层开采时，顶板遭受损伤，工作面及巷道顶板易于出现冒顶、漏顶现象，严重时造成支架埋压；
Today during the mining process in contiguous seams, there are many factors leading to hidden danger, such as: the top board being tortured during the exploitation of the lower seam;
应用推荐