水上多道地震在佛山市某过江隧道勘察中的应用
2020-08-06李谭伟,朱志龙,邬远明
李谭伟,朱志龙,邬远明



文章编号:1672-5603(2020)02-15-6
摘 要 水上多道地震作为工程勘察的重要手段,凭借着高效、无损、高密度、低成本的特点,在场地基础勘察中发挥着重要的作用。本文通过对拟建中的佛山市季华路西延线工程中的控制性工程下穿顺德水道隧道进行水上多道地震勘探,简述了水上多道地震的勘探方法原理、使用的仪器设备和数据采集方法。本次勘察查出断层一处 ,并初步查明了各地层分布等相关工程地质条件。钻探揭露结果与物探资料基本一致,为拟建的佛山市顺德水道隧道提供了勘察依据。
关键词 水上多道地震;过江隧道;应用效果;水域;工程勘察
中图分类号:P631.4 文献标识码:A
Application of Multi-channel Seismic Exploration on a River Crossing Tunnel in Foshan
Li Tanwei , Zhu Zhilong , Wu Yuanming
(Hunan Provincial Communications Planning, survey & Design Institute CO.,LTD, Changsha Hunan 410219)
Abstract: As an important means of engineering survey, multi-channel seismic exploration on water plays an important role in site foundation survey by virtue of its characteristics of high efficiency, non-destructive, high density and low cost. Based on the proposed control project of Jihua Road West Extension of Foshan City, the multi-seismic seismic survey on the water through the Shunde Tunnel was conducted. The principle, equipment and data of the multi-seismic survey on water were briefly described. Acquisition method. This survey identified one fault, and preliminary identified the relevant engineering geological conditions such as the distribution of various layers. The drilling results were basically consistent with the geophysical data, which provided a survey basis for the proposed Shunde Waterway Tunnel in Foshan.
Keywords: Multi-channel seismic exploration on water; river crossing tunnel; application effect; water area; engineering survey
0 引言
與桥梁工程相比,水下隧道具有隐蔽性好、对自然灾害的抵抗力强、平时和战时通畅、对水面航行无妨碍等优点。随着施工技术的不断发展,越来越多的隧道选择从水下通过。由于顺德水道是通往粤西、粤北最快捷最通畅的航道之一,而拟建的佛山市季华路西延线工程中的控制性工程过江隧道位于顺德水道水域,钻探在水上施工期间对海事、航道、防汛等影响较大,涉及许多相关部门,并且施工手续繁琐,同时两岸堤防安全控制区内严禁钻探施工。为了不影响工程的建设工期并达到设计要求,勘察工作的展开及工作量布设遵循循序渐进的原则:先布置物探工作,了解隧道区域内的基本工程地质条件,初步查明对工程安全有重大影响的不良地质问题,再进行水上钻探施工[1]。……
