【摘要】 岩溶易引起路基坍塌和下沉,是严重危害铁路运输安全的路基病害。本文采用探地雷达和多道瞬态面波相结合的综合地球物理探测方法,对青藏铁路K1333+000—K1333+660段石膏岩路基进行探测。结果表明,该段路基存在多处岩溶病害及岩溶引起的次级病害。后期的钻孔结果验证了本次测试的准确性。采用探地雷达和多道瞬态面波综合物探技术,能够较为全面、高效地检测路基中可能存在的隐患,可为及时采取加固处理措施提供依据。更多还原

【Abstract】 As one of the major safety concerns in rail transport,karst is prone to trigger subgrade collapse or settlement.Comprehensive geophysical exploration technology was applied,where ground penetrating radar and multi-channel transient surface wave are combined,to detect the gypsumsubgrade at K1333 + 000—K1333 + 660 section on Qinghai-Tibet railway.The results which are proven consistent to that of the drilling conducted afterwards showthat multiple karst defects and secondary karst-induced defects can be found.Therefore,it can be said that the integrated approach applied in this paper is able to locate any possible defect,so as to carry out necessary reinforcement accordingly.更多还原