The study manifested the uncoupled pattern of the peak stresses in vertical and horizontal directions, as well as the stress evolution trace varying with pillar width.
揭示了煤体边缘水平应力和垂直应力峰值不耦合的规律以及巷道顶板应力峰值随煤柱宽度不同而演化的轨迹。
2
The vertical profiles of trace elements including rare earth elements (REEs) in the two typical sediment cores of Honghu Lake wetland were investigated using ICP-MS.