三维地震波法超前地质预报在引汉济渭工程TBM施工中的应用
发布时间：2019-06-17 11:24
【摘要】：秦岭隧洞横穿秦岭底部,工程地质条件极其复杂多变,具有大埋深、高应力、高水压、大流量的突出特点,修建过程将会遇到大塌方、岩爆、突涌水、大埋深条件下的软弱围岩大变形等多种特殊地质问题,准确预报施工前方的不良地质体,采取有效的防治对策,对保证工程的顺利实施及施工人员、设备的安全至关重要。TBM因其空间狭窄、设备仪器耐用性差、电磁干扰等因素限制,常规的超前地质预报方法无法适用于其施工段的地质预报工作,在引汉济渭工程隧洞工程中引入三维地震波法进行了两次探索与尝试。研究结果表明,三维地震波法对隧洞前方不良地质体预报预测有较好的正相关响应,是适用于TBM施工的超前地质预报的高效手段之一。该技术在引汉济渭工程秦岭隧道TBM岭北施工段掘进中预报了前方地质信息、动态评价围岩质量,尤其为K51+597.6位置TBM卡机脱困方案的制定及时准确地提供了前方地质情况,对TBM施工段的超前地质预报具一定参考价值。
[Abstract]:Qinling tunnel traversing the bottom of Qinling Mountains, the engineering geological conditions are extremely complex and changeable, with the outstanding characteristics of large buried depth, high stress, high water pressure and large flow rate, the construction process will encounter many special geological problems, such as large collapse, rock burst, water inrush, large deformation of weak surrounding rock under the condition of large buried depth, accurately predict the bad geological bodies in front of the construction, and take effective prevention and control countermeasures to ensure the smooth implementation of the project and the construction personnel. The safety of equipment is very important. TBM is limited by its narrow space, poor durability of equipment and instruments, electromagnetic interference and other factors, so the conventional advanced geological prediction method can not be applied to the geological prediction of its construction section. Three-dimensional seismic wave method has been introduced into the tunnel project of the Han-Ji-Wei project. The results show that the three-dimensional seismic wave method has a good positive correlation response to the prediction and prediction of bad geological bodies in front of the tunnel, and it is one of the efficient methods for advanced geological prediction suitable for TBM construction. This technique forecasts the geological information in front of TBM Lingbei construction section of Qinling Tunnel in Qinling Tunnel of Han-Ji-Wei Project, and dynamically evaluates the quality of surrounding rock, especially provides the forward geological situation for the formulation of K51 597.6 position TBM card machine to extricate itself from difficulties, and has certain reference value for the advanced geological prediction of TBM construction section.
【作者单位】： 中铁第一勘察设计院集团有限公司;
【基金】：陕西省科技统筹创新工程计划项目(2013KTZB03-01-01) 陕西省引汉济渭工程建设有限公司科研项目(引汉建函[2014]93号)
【分类号】：TV554
本文编号：2500948
[Abstract]:Qinling tunnel traversing the bottom of Qinling Mountains, the engineering geological conditions are extremely complex and changeable, with the outstanding characteristics of large buried depth, high stress, high water pressure and large flow rate, the construction process will encounter many special geological problems, such as large collapse, rock burst, water inrush, large deformation of weak surrounding rock under the condition of large buried depth, accurately predict the bad geological bodies in front of the construction, and take effective prevention and control countermeasures to ensure the smooth implementation of the project and the construction personnel. The safety of equipment is very important. TBM is limited by its narrow space, poor durability of equipment and instruments, electromagnetic interference and other factors, so the conventional advanced geological prediction method can not be applied to the geological prediction of its construction section. Three-dimensional seismic wave method has been introduced into the tunnel project of the Han-Ji-Wei project. The results show that the three-dimensional seismic wave method has a good positive correlation response to the prediction and prediction of bad geological bodies in front of the tunnel, and it is one of the efficient methods for advanced geological prediction suitable for TBM construction. This technique forecasts the geological information in front of TBM Lingbei construction section of Qinling Tunnel in Qinling Tunnel of Han-Ji-Wei Project, and dynamically evaluates the quality of surrounding rock, especially provides the forward geological situation for the formulation of K51 597.6 position TBM card machine to extricate itself from difficulties, and has certain reference value for the advanced geological prediction of TBM construction section.
【作者单位】： 中铁第一勘察设计院集团有限公司;
【基金】：陕西省科技统筹创新工程计划项目(2013KTZB03-01-01) 陕西省引汉济渭工程建设有限公司科研项目(引汉建函[2014]93号)
【分类号】：TV554
【相似文献】
相关期刊论文 前4条
1 黄超;侯忠发;;TSP203超前地质预报系统在立洲电站引水洞的应用[J];华电技术;2011年04期
2 韩志远;姚志国;祝云川;;综合超前地质预报技术在大伙房水库输水工程中的研究与应用[J];水利建设与管理;2007年05期
3 宋维圣;谷成;李占军;;TSP203超前地质预报系统在输水工程中的应用[J];东北水利水电;2006年10期
4 张国良;佟胤铮;王宇;;TSP超前地质预报在大伙房水库输水工程的应用[J];水利水电技术;2006年04期
，本文编号：2500948
本文链接：https://www.wllwen.com/kejilunwen/shuiwenshuili/2500948.html
