本文選題：巖石力學(xué) + 抗爆炸性能��； 參考：《巖石力學(xué)與工程學(xué)報(bào)》2017年10期

【摘要】：為進(jìn)一步提升洞庫(kù)圍巖的抗爆炸性能,采用相似模型試驗(yàn)方法對(duì)采用交叉錨索進(jìn)行加固的均質(zhì)、層狀和塊狀圍巖進(jìn)行2組爆炸成坑試驗(yàn),并對(duì)比分析加固前后圍巖模型的宏觀破壞形態(tài)、隆起形態(tài)、裂縫形態(tài)及爆坑尺寸。研究結(jié)果表明:(1)交叉錨索對(duì)巖體提供了較大的抗拉、抗剪能力,從而對(duì)巖體抗爆炸成坑具有較強(qiáng)的加固作用;(2)巖體特征對(duì)成坑試件破壞程度有較大影響;(3)從有加固的試件表面隆起高度上看,均質(zhì)和層狀巖體試件的都較小,塊狀巖體試件的較大;(4)巖體特征不同,試件表面的裂縫形態(tài)不同;(5)有加固試件的爆坑平面尺寸均質(zhì)巖體試件的最小,塊狀的較大,層狀的最大。研究結(jié)果可為地下防護(hù)工程設(shè)計(jì)和坑道圍巖加固提供參考。
[Abstract]:In order to further improve the explosion resistance of the surrounding rock of the cavern, two groups of explosive pit formation tests were carried out on the homogeneous, layered and massive surrounding rock reinforced by cross-anchored cables by using the similar model test method.The macroscopic failure form, uplift shape, crack shape and crater size of surrounding rock model before and after reinforcement are analyzed.The results show that the cross-anchoring cable provides a large tensile and shear resistance to the rock mass.Therefore, the rock mass characteristics have a great influence on the failure degree of the crater specimens. From the height of the surface uplift of the specimens with reinforcement, the homogeneous and stratified rock mass specimens are smaller.The fracture morphology of the surface of the specimen is different. 5) the specimen with reinforced specimen has the smallest, larger block and the largest layer of the flat size homogeneous rock mass specimen.The results can be used as reference for underground protection engineering design and surrounding rock reinforcement.
【作者單位】： 空軍工程設(shè)計(jì)研究局;中國(guó)水利水電科學(xué)研究院巖土工程研究所;軍委后勤保障部工程兵科研三所;
【分類號(hào)】：TU45
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本文編號(hào)：1736307