CAJ | 학술논문

为了在深基坑开挖前提前判断基坑侧壁渗漏点的具体位置,以紧邻长江边的深基坑为工程背景,简要介绍了三维声纳渗流探测的原理,侧重论述了声纳探测技术的实施方法及具体施工布置要求. 通过对基坑地连墙外各观测孔声纳渗流检测数据的计算分析、类比和评估,较为全面掌握了基坑在内外水头作用下的渗流情况. 在实际开挖过程中,通过现场观测,声纳探测的渗漏点与现场情况基本一致. 总结了声纳探测技术的优缺点,从应用需求上指出了下步应探索的领域.
위료재심기갱개알전제전판단기갱측벽삼루점적구체위치,이긴린장강변적심기갱위공정배경,간요개소료삼유성납삼류탐측적원리,측중논술료성납탐측기술적실시방법급구체시공포치요구. 통과대기갱지련장외각관측공성납삼류검측수거적계산분석、류비화평고,교위전면장악료기갱재내외수두작용하적삼류정황. 재실제개알과정중,통과현장관측,성납탐측적삼루점여현장정황기본일치. 총결료성납탐측기술적우결점,종응용수구상지출료하보응탐색적영역.
Taking a deep foundation pit projects near to Yangtze River as a case, we applied 3D sonar seepage detecting meth-od to master the side wall seepage condition before the pit excavation. The principle of 3D sonar seepage detecting is introduced, especially the detecting procedure as well as the detail construction layout are discussed. By analyzing and comparing the sonar detecting data outside the diaphragm wall of foundation pit, we understood the overall condition of pit seepage under the influence of outside-inside water head. In the later foundation pit excavation, the detecting results provided by sonar detecting were in ac-cordance with the measured data. Finally, the pros and cons of sonar detecting technology are summarized, and the next explora-tion field is pointed out in terms of application requirement.