• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>North American Tunneling Conference; 20040417-22; Atlanta,GA(US) >Ground freezing and spray concrete lining in the reconstruction of a collapsed tunnel
【24h】

Ground freezing and spray concrete lining in the reconstruction of a collapsed tunnel

机译：倒塌隧道重建中的地面冻结和喷射混凝土衬砌

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

During the construction of 14ft diameter flow transfer tunnel for Yorkshire Water in Kingston upon Hull, UK, a 350 ft length of completed tunnel collapsed within a few days of construction. The tunnel was constructed using a full face Earth Pressure Balance (TBM) and a segmental concrete lining in alluvial and glacial soils with a high water pressure. Artificial Ground Freeze with Liquid Nitrogen as the freeze medium was used to stabilize the ground to permit the reconstruction of the tunnel along its original alignment. Excavation and reconstruction was carried out within the frozen ground using sequential excavation techniques and sprayed concrete primary and secondary lining. This paper describes the design of the Artificial Ground Freeze, the reconstruction of the tunnel and a description of the lessons attained from constructing a major civil engineering structure in frozen ground. Details on the extensive monitoring system and safety measures implemented are also given.
机译：在英国赫尔河畔金斯顿为约克郡水建设直径为14英尺的引水隧洞期间，全长350英尺长的已建成隧道在几天内坍塌。该隧道是使用全地面土压平衡（TBM）和高水压冲积和冰川土壤中的分段混凝土衬砌建造的。使用液氮作为冷冻介质的人工地面冻结技术可稳定地面，以允许沿其原始路线重建隧道。开挖和重建工作是在冻土中使用顺序开挖技术以及喷涂的混凝土一级和二级衬砌进行的。本文描述了人造地面冻结的设计，隧道的重建，并描述了在冻土上建造主要的土木工程结构所获得的教训。还提供了有关广泛监控系统和已实施安全措施的详细信息。

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