地压技术讲座(一)——地压的基本知识

• 机 构: 东北工学院采矿系,
• 出 处: 有色金属(矿山部分)
• 发表日期: 1977年01期
• 关键词: 地压 巷道 岩体 泥质页岩 岩石破坏 顶板下沉 等塑性 石灰岩 围岩 闪长岩

一、什么叫地压现象每个矿山工作者都会碰到这样一类现象,在蚀变石灰岩、风化闪长岩等脆性岩体中经常看到冒顶,片邦等岩石破坏现象(图1)。在粘土、泥质页岩等塑性岩体中遇到巷道顶板下沉、两邦及底板鼓胀等围岩的变形和位移(图2)。

First, what is the phenomenon of ground pressure Each mine workers will encounter such a phenomenon, alteration limestone, weathering diorite and other brittle rocks often see the roof, the state and other rock destruction (Figure 1). Deformation and displacement of surrounding rock such as roadway roof subsidence, two states and floor swelling encountered in plastic rock such as clay and shale shale (Figure 2).