ISSN 2096-4498 CN 44-1745/U
隧道建设(中英文) ›› 2011, Vol. 31 ›› Issue (6): 733-736.
• 施工技术 • 上一篇 下一篇
邓青力
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作者简介:
DENG Qingli
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摘要: 为确保TBM能安全顺利地通过花岗岩节理密集带,以南疆吐库二线中天山隧道进口为例,通过现场实践,采用刀盘内施作超前自进式锚杆,注新型聚氨酯化学浆液,围岩出护盾后径向注浆补加固等方法,有效地控制了围岩变形坍塌,提高了设备利用率,确保TBM安全、高效地通过了花岗岩节理密集带。
关键词: 敞开式TBM, 节理密集带, 聚氨酯化学浆液, 超前自进式锚杆, 径向注浆
Abstract: The entrance section of Zhongtianshan tunnel on TurpanKorla railway in South Xinjiang passes through jointdenselydeveloped granite rock mass. In order to ensure the safe and successful boring of the TBM, advance selfdrilling bolts are installed through the cutterhead of the TBM, new type of polyurethane chemical grout is injected through the bolts and radial grouting is executed after the rock mass leaves the shield. In this way, the deformation and collapse of the rock mass have been brought under effective control and the availability of the equipment is improved. In the end, the TBM passes through the jointdenselydeveloped granite rock mass safely and efficiently.
Key words: open TBM, jointdenselydeveloped section, polyurethane grout, advance selfdrilling bolt, radial grouting
邓青力. 敞开式TBM掘进过节理密集带施工技术[J]. 隧道建设, 2011, 31(6): 733-736.
DENG Qingli. Technology for TBM Tunneling Through Jointdenselydeveloped Granite Sections[J]. Tunnel Construction, 2011, 31(6): 733-736.
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