| 应用和改造卡斯特纳公式求取家竹箐隧道塑性半径 |
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| 引用本文： | 符华兴.应用和改造卡斯特纳公式求取家竹箐隧道塑性半径[J].铁道工程学报,2003(1):94-95. |
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| 作者姓名： | 符华兴 |
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| 作者单位： | 中铁五局集团公司,贵阳,550003 |
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| 摘 要： | 本文叙述了家竹箐隧道不用折扣取值而用数解法通过卡斯特纳公式求解塑性区半径的方法。这要求在公式中除了应恰当地采用因随开挖面积不同而形成的形常数即开挖圆半径之外 ,还应特别计及开挖时人为的支护抗力。此二者都是通过家竹箐隧道施工实践而总结出来的宝贵经验。
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| 关 键 词： | 家竹箐隧道 卡斯特纳公式 塑性半径 支护抗力 松弛压力 |
| 文章编号： | 1006-2106(2003)01-0094-02 |
| 修稿时间： | 2002年9月6日 |
HOW TO CALCULATE RADIUS OF PLASTIC REGION BY APPLYING AND REFORMING KASTNER FORMULA THROUGH PRACTICE OF JIAZHUQING TUNNEL |
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| FU Hua-xing China Railway Fifth Engineering Bureau Group Company.HOW TO CALCULATE RADIUS OF PLASTIC REGION BY APPLYING AND REFORMING KASTNER FORMULA THROUGH PRACTICE OF JIAZHUQING TUNNEL[J].Journal of Railway Engineering Society,2003(1):94-95. |
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| Authors: | FU Hua-xing China Railway Fifth Engineering Bureau Group Company |
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| Institution: | FU Hua-xing China Railway Fifth Engineering Bureau Group Company |
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| Abstract: | The paper describes the evaluation method for the radius of plastic region by numerical solving through Kastner formula instead of evaluation by discount. It is reguired that not only the radius of excavation circle, i.e. the shape coefficient formed according to different excavation area should be adopted properly, but also the man-made resistance of support during excavation should be taken into account specially. These two aspects are valuable experiences summarized from construction practice of Jiazhuqing Tunnel. |
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| Keywords: | Jiazhuqing Tunnel Kastner formula radius of plastic region resistance of support slack pressure |
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