| 锁脚锚管作用机理分析 |
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| 引用本文： | 常明.锁脚锚管作用机理分析[J].水利与建筑工程学报,2011,9(2):88-91. |
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| 作者姓名： | 常明 |
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| 作者单位： | 中铁七局集团第三工程有限公司; |
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| 摘 要： | 对比分析了锚杆和锁脚锚管的异同点,研究了锁脚锚管对支护结构变形和内力的影响,揭示了锁脚锚管的作用机理,提出了判断锁脚锚管是否有效和合理的标准.研究表明锁脚锚管应通过约束其.沿洞轴方向的转动自由度考虑,合理的锚管长度和打入角度不仅有利于限制围岩的变形,而且有助于支护结构承载能力的发挥,一般土质隧道的锁脚锚管长度宜取2.3...
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| 关 键 词： | 锁脚锚管 锚杆 隧道 支护内力 围岩变形 |
Action Mechanism Analysis of Locking Tremies |
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| CHANG Ming.Action Mechanism Analysis of Locking Tremies[J].Journal of Water Resources Architectural Engineering,2011,9(2):88-91. |
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| Authors: | CHANG Ming |
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| Affiliation: | CHANG Ming(Third Engineering Co.,LTD.of China Railway Seventh Bureau Group Company,Xi'an,Shaanxi 710043,China) |
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| Abstract: | The similarities and differences between locking tremies and bolts for tunnels are compared,the influences of the locking tremies to the internal force and deformation of tunnel support structures are studied,the reinforcement mechanism of the locking tremies is discussed,and the criterions for the effectiveness and rationality of the locking tremies are proposed.It is shown that the locking tremies should be considered by confining their rotational freedom degree in the direction of the tunnel axis.The rat... |
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| Keywords: | locking tremie bolt tunnel internal force of supporting structure surrounding rock deformation |
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