后退式注浆在隧道穿越不良地质中的应用

发布时间：2018-04-20 22:26

  本文选题：隧道施工 + 不良地质　； 参考：《建筑技术》2017年06期

【摘要】：北京地铁10号线二期宋家庄站至石榴庄站区间隧道。穿越污水管断裂区域及隧道拱顶富水粉细砂层,施工中采用后退式注浆进行全断面、半断面和径向深孔注浆,对掌子面和拱顶范围地层进行注浆加固,减少了开挖风险,保证了地面道路及建筑物的沉降在允许范围内。
[Abstract]:The two phase of Beijing Metro Line 10 is the section tunnel of Song Jia Zhuang Railway Station to shgranzhuang station. Through the fracture area of the sewage pipe and the fine sand layer of the water rich powder in the tunnel vault, the backstepping grouting is used to carry out the full section, half section and radial deep hole grouting, and grouting reinforcement for the strata of the palm and vault, reducing the risk of excavation and ensuring the ground road. The settlement of the building is within the allowable range.

【作者单位】： 北京建工土木工程有限公司;
【分类号】：U455.49
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本文编号：1779733