论文部分内容阅读
地下工程所处位置的地应力大小及方向已逐渐成为研究地下空间周围应力分布及进行合理开挖设计所必不可少的原始边界条件依据。出于单纯依靠工程类比法已无法满足现代矿山设汁的要求及因为取得可靠的地应力数据能进行合理设计而获得了最大的经济效益等原因。一些工业发达的国家,近十年来,对一个矿井通常要进行数十次量测。我国现阶段矿井开采深度逐年增加,采空区逐渐扩大,而地表岩层移动及边坡问题也日益
The magnitude and direction of geostress in the underground engineering area have gradually become the basis of the original boundary conditions necessary for studying the stress distribution around the underground space and designing for proper excavation. Because of the reliance on engineering analogy simply unable to meet the requirements of modern mining design and obtain the most economic benefits and other reasons because of the reasonable design of reliable geostress data. In some industrialized countries, the measurement of a mine usually takes dozens of measurements in the past decade. At the present stage, the depth of mine exploitation in our country increases year by year, and the gob area gradually expands while the movement of surface strata and slope problems are increasingly