膨胀型软岩变形机理与特种控制技术

Deformation Mechanism of Expansible Soft Rock and Special Control Technique

分析了膨胀性软岩的判别标准和影响膨胀变形的“物化与结构特征”、“环境湿度因素”和“工程应力”三要素,根据膨胀性软岩本构关系,提出了支护原理和特种控制技术。工业性试验的矿压监测结果表明,其支护原理和特种控制对策适应膨胀性软岩工程条件,具有推广应用价值。

The criterions for expansible soft rock and the main factors influencing the expansion deformation were analyzed, including ＂ physic-chemical and structural characteristics＂, ＂ environment humidity factor＂ and ＂ engineering stress＂. According to the constitutive relationship of expansible soft rock, the support principle and special control technique were proposed. The mine pressure monitoring results in the industrial test show that the support principle and special control measures proposed are suitable to the engineering conditions of expansible soft rock and therefore, are of popularization value.