CAJ | 학술논문

溶洞是地铁隧道工程的重要检测内容之一，探地雷达波在溶洞中传播的信号特征与围岩存在明显的差别，雷达反射波组的振幅、波长和频率会随着介质的电性变化而改变，正确识别溶洞的雷达波组特征是判别溶洞存在及其性质的关键所在。以南京地铁三号线滨江路站-五塘村站之间地铁隧道下方岩体内隐含溶洞探测为例，着重讨论了溶洞在探地雷达检测剖面上的波形显示特征，结合钻孔验证，说明探地雷达技术在城市地铁隧道工程溶洞探测中是有效的和实用的。
용동시지철수도공정적중요검측내용지일，탐지뢰체파재용동중전파적신호특정여위암존재명현적차별，뢰체반사파조적진폭、파장화빈솔회수착개질적전성변화이개변，정학식별용동적뢰체파조특정시판별용동존재급기성질적관건소재。이남경지철삼호선빈강로참-오당촌참지간지철수도하방암체내은함용동탐측위례，착중토론료용동재탐지뢰체검측부면상적파형현시특정，결합찬공험증，설명탐지뢰체기술재성시지철수도공정용동탐측중시유효적화실용적。
Karst detection is one of the important detection tasks in subway construction. Signal propagating characteristics of ground penetrating radar in the cave and in the rock show significant differences. The amplitude, wavelength and frequency of the radar wave change with the electrical properties of the media, and hence correct identification of radar wave group characteristics of karst cave is the key to identifying caves and their properties. This paper deals with the implication of karst detection in Nanjing Metro Line between the Binjiang Road Station and Wutang Village Road Station,with emphasis placed on the waveform display characteristics of the karst cave on the ground-penetrating radar detection. In combination with drilling verification,the authors hold that the ground penetrating ra-dar is effective in detecting the karst in the city subway tunnel.