Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Surrounding rock rockburst tendency grade discrimination method based on GSI and excavation disturbance factor
The invention belongs to the field of underground engineering surrounding rock rockburst tendency evaluation, and particularly relates to a surrounding rock rockburst tendency grade judgment method based on GSI and excavation disturbance factors. The method comprises the following steps of: preliminarily judging whether the deep surrounding rock has rockburst tendency or not according to the hardness degree and the integrity degree of the on-site deep surrounding rock; determining an excavation disturbance factor of the surrounding rock, and calculating a deformation modulus of the deep surrounding rock by using a relationship between a rock mass quality index GSI and a disturbance surrounding rock deformation modulus; calculating the elastic modulus of the deep rock by using the relationship between the deformation modulus of the disturbed surrounding rock and the elastic modulus of the rock; calculating the residual elastic energy of the deep surrounding rock, and quantitatively judging the rockburst tendency grade of the to-be-evaluated surrounding rock. According to the invention, the surrounding rock rockburst tendency grade discrimination method which comprehensively considers factors such as rock energy characteristics, excavation disturbance and rock mass quality is established. Rapid and accurate evaluation of the deep surrounding rock rockburst tendency grade is realized, and a new thought and reference are provided for quantitative identification of the deep hard rock rockburst tendency grade.
本发明属于地下工程围岩岩爆倾向性评价领域，具体涉及基于GSI和开挖扰动因子的围岩岩爆倾向性等级判别方法。方法为根据现场深部围岩的坚硬程度、完整程度，初步判断深部围岩是否具有岩爆倾向性；确定围岩的开挖扰动因子，利用岩体质量指数GSI与扰动围岩变形模量之间的关系，计算深部围岩的变形模量；利用扰动围岩变形模量与岩石弹性模量之间的关系，计算深部岩石的弹性模量；计算深部围岩的剩余弹性能，定量判别待评估围岩的岩爆倾向性等级。本发明建立了综合考虑岩石能量特征、开挖扰动、岩体质量等因素的围岩岩爆倾向性等级判别方法。实现了深部围岩岩爆倾向性等级的快速、准确评估，为深部硬岩岩爆倾向性等级的定量识别提供了新的思路和参考。
Surrounding rock rockburst tendency grade discrimination method based on GSI and excavation disturbance factor
The invention belongs to the field of underground engineering surrounding rock rockburst tendency evaluation, and particularly relates to a surrounding rock rockburst tendency grade judgment method based on GSI and excavation disturbance factors. The method comprises the following steps of: preliminarily judging whether the deep surrounding rock has rockburst tendency or not according to the hardness degree and the integrity degree of the on-site deep surrounding rock; determining an excavation disturbance factor of the surrounding rock, and calculating a deformation modulus of the deep surrounding rock by using a relationship between a rock mass quality index GSI and a disturbance surrounding rock deformation modulus; calculating the elastic modulus of the deep rock by using the relationship between the deformation modulus of the disturbed surrounding rock and the elastic modulus of the rock; calculating the residual elastic energy of the deep surrounding rock, and quantitatively judging the rockburst tendency grade of the to-be-evaluated surrounding rock. According to the invention, the surrounding rock rockburst tendency grade discrimination method which comprehensively considers factors such as rock energy characteristics, excavation disturbance and rock mass quality is established. Rapid and accurate evaluation of the deep surrounding rock rockburst tendency grade is realized, and a new thought and reference are provided for quantitative identification of the deep hard rock rockburst tendency grade.
本发明属于地下工程围岩岩爆倾向性评价领域，具体涉及基于GSI和开挖扰动因子的围岩岩爆倾向性等级判别方法。方法为根据现场深部围岩的坚硬程度、完整程度，初步判断深部围岩是否具有岩爆倾向性；确定围岩的开挖扰动因子，利用岩体质量指数GSI与扰动围岩变形模量之间的关系，计算深部围岩的变形模量；利用扰动围岩变形模量与岩石弹性模量之间的关系，计算深部岩石的弹性模量；计算深部围岩的剩余弹性能，定量判别待评估围岩的岩爆倾向性等级。本发明建立了综合考虑岩石能量特征、开挖扰动、岩体质量等因素的围岩岩爆倾向性等级判别方法。实现了深部围岩岩爆倾向性等级的快速、准确评估，为深部硬岩岩爆倾向性等级的定量识别提供了新的思路和参考。
Surrounding rock rockburst tendency grade discrimination method based on GSI and excavation disturbance factor
基于GSI和开挖扰动因子的围岩岩爆倾向性等级判别方法
GONG FENGQIANG (Autor:in) / XU LEI (Autor:in) / DAI JINHAO (Autor:in) / HE ZHICHAO (Autor:in)
06.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
G16C
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