地下连续墙渗漏声呐检测技术应用——以深圳市滨海大道综合改造工程为例  

The Application of Sonar Detection Technology for Underground Diaphragm Wall Seepage——Taking Shenzhen Binhai Avenue Comprehensive Reconstruction Project as an Example

作　　者：张双 沈道旭 ZHANG Shuang;SHEN Daoxu(China Railway No.4 Engineering Group Co.,Ltd.,Hefei 230041,Anhui,China)

机构地区：[1]中铁四局集团有限公司,安徽合肥230041

出　　处：《工程技术研究》2023年第4期66-68,共3页Engineering and Technological Research

摘　　要：文章以深圳市滨海大道综合改造工程为背景,在下沉隧道段基坑围护结构施工及人工降水完毕后(基坑开挖前),采用地连墙预埋管法,选取了10个有代表性的测量孔,测量声呐渗流。通过测量基坑围护结构周边地下水渗流场的流速、流向与流量,以可视化成像的成果在三维地理坐标位置进行展示,并对基坑开挖施工过程中围护结构可能发生渗漏的部位进行特征识别。该技术为基坑围护结构渗漏检测预警及风险防控提供了精细化的水文地质参数和可行的技术支持。Based on the comprehensive reconstruction project of Binhai Avenue in Shenzhen,after the completion of foundation pit retaining structure construction in the sinking tunnel section and artificial dewatering(before the excavation of the foundation pit),this paper adopts the method of embedded pipes in the diaphragm wall,and selects 10 representative measuring holes to measure the sonar seepage.By measuring the flow velocity,direction and volume of groundwater seepage field around the retaining structure of the foundation pit,the results of visual imaging are displayed in three-dimensional geographical coordinates,and the features of the parts where the retaining structure may leak during the excavation of the foundation pit are identified.This technology provides refined hydrogeological parameters and feasible technical support for seepage detection and early warning and risk prevention and control of the foundation pit retaining structure.

关 键 词：声呐检测 渗流控制 基坑工程 水文地质参数 

分 类 号：TU753[建筑科学—建筑技术科学]