| 锚固硐室在爆炸波作用下的损伤机理 |
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| 引用本文： | 穆朝民,齐娟. 锚固硐室在爆炸波作用下的损伤机理[J]. 煤炭学报, 2011, 36(Z2): 391-395 |
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| 作者姓名： | 穆朝民 齐娟 |
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| 作者单位： | 1.安徽理工大学 能源与安全学院，安徽 淮南 232001；;2.煤矿安全高效开采省部共建教育部重点实验室，安徽 淮南 232001；;3.总参工程兵科研三所，河南 洛阳 471023 |
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| 基金项目： | 安徽省高等学校省级自然科学重点资助项目（KJ2011A082） |
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| 摘 要： | 以连续介质力学与损伤力学为基础，建立岩石的拉压动态损伤本构模型，并将此模型嵌入非线性有限元程序LS-dyna中，对锚固硐室抗爆的拉压损伤问题进行模拟。模拟与模型实验结果基本一致，验证了其合理性与正确性。结果表明：锚杆对抗爆加固硐室具有积极作用，锚杆改变损伤发展方向和抑制裂纹的产生，使爆炸波无法穿过密集锚杆在硐室拱部形成损伤，并提高了硐室的抗拉强度。
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| 关 键 词： | 硐室爆炸波 损伤 锚杆 |
| 收稿时间： | 2011-04-27 |
Study on the damage of the underground cavern caused by blasting waves |
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| Abstract: | The tension and compression damage constitutive model was established based on the theory of continuum damage mechanics.Using the model that was implemented into the nonlinear dynamic finite element program,LS dyna.The tension and compression damage caused by blasting waves in rock around the underground cavern was simulated.The results show that the rock bolts can improve the anti explosion ability of the underground cavern.The damage direction is changed and the cracks are prohibited by the rock bolts so that damage can not penetrate rock bolts forming damage in the rock around the underground cavern and meanwhile the tensile strength of the rock around cavern is improved by the rock bolts. |
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| Keywords: | underground cavern blasting waves damage rock bolts |
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