虫子帮主 - 2011/6/30 11:35:00
目前正在施工隧道掌子面为沙土(拱顶部分为粘土层),土质自稳能力差,局部坍塌集中在两侧,Bô¦ïÕEKvbbs.3c3t.com*ÙÐñÖ
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目前采用改性水玻璃超前注浆,两侧加密打设,不过效果不理想,Bô¦ïÕEKvbbs.3c3t.com*ÙÐñÖ
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个人分析原因是:小导管打设角度偏大,浆液扩散半径小Bô¦ïÕEKvbbs.3c3t.com*ÙÐñÖ
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不知道哪位大虾帮忙分析下原因,如何处理呢?Bô¦ïÕEKvbbs.3c3t.com*ÙÐñÖ
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sxheliren - 2011/7/2 9:04:00
短进尺、紧封闭Bô¦ïÕEKvbbs.3c3t.com*ÙÐñÖ
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