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竖井与泄洪洞交叉处加固方案研究

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摘要 竖井与泄洪洞垂直交叉处在施工过程中变形机制复杂,限制交叉处施工过程中的变形,具有较大的实际意义。本文提出一种由泄洪洞正工作面超前支护,竖井环向工字钢和竖井内框架构成的联合支护体系对交叉处的施工过程进行加固。分别对未使用联合支护体系的方案一和使用联合支护体系的方案二进行计算。通过对两种方案的结果进行比较:此种联合支护体系对于限制加固区域的位移的效果明显,而远离加固区域的加固效果逐渐减小。
作者 田力 王琦
出处 《低温建筑技术》 2013年第4期93-95,共3页 Low Temperature Architecture Technology
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