首页> 外文会议>International Conference on Urban Ground Engineering, Nov 11-12, 1998, Hong Kong, China >Some geotechnical difficulties in mixed ground tunnelling in urban areas
【24h】

Some geotechnical difficulties in mixed ground tunnelling in urban areas

机译:城市地区混合地面隧道施工中的一些岩土工程难题

获取原文
获取原文并翻译 | 示例

摘要

A scheme for providing stability measures for a tunnel excavated in mixed-ground conditions using chemical grouting is described. Typical geotechnical problems encountered during excavation are highlighted. An analytical approach for calculating the required thickness of grouted soil was developed. Grout characteristics to achieve the required behaviour are described, along with the recommended sequence of construction. A methodology employing finite element analyses to predict the tunnel behaviour during construction is proposed It was utilized in designing the excavation support. Predictions compared well with actual field measurements.
机译:描述了一种为使用化学灌浆的混合地面条件下开挖的隧道提供稳定性措施的方案。突出了在开挖过程中遇到的典型岩土问题。开发了一种计算所需灌浆厚度的分析方法。描述了实现所需性能的灌浆特性,以及推荐的施工顺序。提出了一种采用有限元分析法预测施工过程中隧道行为的方法,该方法被用于设计基坑支护。预测与实际的现场测量结果比较良好。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号