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- Keywords cable bolts support;pretensioned stress;stress fields;numerical simulation; 关键词锚索支护;预应力;应力场;数值模拟;
- The discussion of theory and method of determining parameters on the cable bolt support 锚索支护理论及参数确定方法探讨
- cable bolts support 锚索支护
- The combined support with cable bolt wire mesh and shotcreting is applied in coal roadway in Xingan Coal Mine of Hegang Mining Industry Group. 鹤岗矿业集团兴安煤矿在煤巷中应用锚索锚杆挂网喷喧支护,取得了较好的技术经济效果。
- Anchor drilling machine also effects rapidity of anchor bolt support. 锚杆钻机又直接影响到锚杆支护的速度。
- Pre-tensioned bolts support is an effective way to improve joint roof stability. 预应力锚杆支护,是提高煤巷节理顶板稳定性的有效方法。
- Under the explosive load,shotcrete and rock bolt support and integral lining structures are usually used for chambers in rock mass. 在爆炸荷载作用下,岩体洞室通常采用喷锚支护结构和整体被复结构。
- The test of bolt and soft bolt support has achieved success,to extend and application widely in Malan 2 # coal,the effect is better. 马兰矿2%23煤全锚支护试验取得成功,并大面积推广应用,取得较好的经济效益。
- Then this method is used in the calculation of bolt support on coal goaf, and deformation of goaf is compared before and after bolt support. 并将这种方法应用于巷道锚杆支护的计算中,对锚杆支护前后围岩的变形进行了对比。
- The high pretensioned stress and intensive bolting system was developed, including intensive bolt, steel strip and cable bolt with a big increase in mechanical functions. 高预应力、强力支护系统成功应用于新汉矿区千米深井巷道,巷道变形降低70%25左右,顶板离层仅为原来的5%25,巷道支护状况发生了本质改变。
- Based on the theory of rock mechanics that applied in country rock kerf, and using bolt support can remove the heave of bottom, which gets good effect in practice. 施工中应用巷道围岩切缝法的岩石力学理论分析,采用锚杆支护法解决底板臌起现象,收到良好效果。
- A numerical model for the dynamical analyzes of the pre-stressed bolt support system was founded based on the structure of rockbolt and its mechanical characteristics. 摘要根据煤矿预应力锚杆支护系统的结构和受力特点建立了预应力锚杆支护系统的动力分析模型;
- Using pre-stress cable bolt to support soft surrounding rock roadway 预应力锚索支护在治理软岩巷道破坏中的应用
- The obtained results are shown that the anchor bolts supports in the fissured rock mass is good to raise the safety of the whole structure of grottoes. 结果表明,锚杆的加固作用是明显的,在有裂隙的部位打入锚杆对石窟整体结构的安全性是有益处的。
- Bolt support gives good expression to top slope pressure roadway, it guarantees stability of supporting and driving speed of coal winning. 尤其是在顶帮压力较大的巷道中,锚杆支护的优越性得到了充分的体现,保证了巷道支护的稳定性和回采的快速推进。
- Application of Bolting Supports in Datong Coalmines Group Co. 煤巷锚杆支护在大同煤矿集团公司的应用。
- By appling surround rock strength theory,stiffener theory,and observating weighe of 2 # seam bolt support in Ximing Coal mine,determines the rational position of roadway and bolt paramters. 通过运用围岩强度强化理论和“刚性梁”理论,对2%23煤层的锚杆支护进行矿压观测,合理确定出巷道位置和锚杆参数
- They are building a submarine cable tunnel. 他们正在建设一条海底电缆隧道。
- The paper carefully analyzes bolt supporting system, and measures the parameters of coal wall rock in Fuxin diggings. 本文对锚杆支护理论进行了系统分析,并对阜新矿区煤巷围岩的参数进行了实验测定。
- Cable television has been around for some time now. 有线电视面世已有些时日了。