| 伸长锚杆的计算 |
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| 引用本文： | 郑璐石 何祖光. 伸长锚杆的计算[J]. 宁夏大学学报(自然科学版), 1991, 12(1): 44-51 |
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| 作者姓名： | 郑璐石 何祖光 |
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| 作者单位： | 宁夏大学物理系(郑璐石)，石咀山矿务局(何祖光) |
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| 摘 要： | 本文由锚杆与围岩共同变形假定出发,推导出了锚杆中性点位置的判据及相应的锚杆轴力和剪力分布计算公式。并指出,在软岩巷道的支护中,通过改变可伸长锚杆各部分的几何尺寸,同时考虑各部分的刚度,就可达到使锚杆的刚度和变形量与围岩变形相协调的目的。
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| 关 键 词： | 锚杆 可伸缩式 软岩 巷道 中性点 |
The Calculation of the Expand-contractable Anchor Rod |
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| Zhen Lushi He Zuguang. The Calculation of the Expand-contractable Anchor Rod[J]. Journal of Ningxia University(Natural Science Edition), 1991, 12(1): 44-51 |
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| Authors: | Zhen Lushi He Zuguang |
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| Affiliation: | Zhen Lushi He Zuguang (Department of Physics) (Shizuishan's Mine Authority) |
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| Abstract: | The presert paper supposes the anchor rod deformates in common with the surrounding rock, and work out the criterion of anchor rod's neutral point position and the computation formulas of the correspondence anchor rod's bearing force distribution and shearing force distribution. It indicates that the gool of the making the anchor rod's stiffness and strain is in tune with the surrounding rock's strain can be advieved by changing the geometric size of the expand-contractable anchor rod's various parts and by considering its stiffness during the supporting of weak rockalley. |
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| Keywords: | weak rockalley expand-contractable anchor rod neutral point bearing force shearing force. |
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