水库坝体结构层的地质雷达高分辨率探测   总被引：12，自引：8，他引：4  

曾校丰  许维进  钱荣毅  邓新生 《地球物理学进展》2000,15(4):104-109

水库坝体结构层形态复杂多变,缺陷隐蔽、规模小、探测难度大,为确保水库坝安全可靠地运行,采用高分辨率的物探方法对其探测是必需的。本文以某水库的地质雷达探测为例,简要介绍了地质雷达高分辨探测方法及其成果,为地质雷达技术在堤坝安全性可靠性评价中的推广应用提供了一个成功实例。  相似文献   

面波勘探及其在沙漠地区表层地质结构调查中的应用   总被引：2，自引：1，他引：2  

曾校丰  钱荣毅  邓新生  林万顺 《现代地质》2001,15(1):94-97

反射波地震勘探中面波常被视为干扰波而加以去除 ,但它却包含了丰富的有用地质信息 ;面波勘探在地形及地质条件复杂的沙漠地区浅层地质结构调查中独具优势。介绍了在新疆准噶尔沙漠地区应用面波勘探进行地层地质结构调查的技术方法及其成功实例。由于合理地选取了采集、处理参数 ,面波勘探深度超过 2 50 m,取得了满意的勘探效果。  相似文献   

Determination of ice thickness, subice topography and ice vol-ume at Glacier No. 1 in Tien Shan, China by ground penetrating radar          下载免费PDF全文

孙波  张鹏  焦克勤  邓新生  温家洪 《极地研究》2003,14(2):90-98

We describe a radio-echo sounding (RES) survey for the determination of ice thickness, subglacial topography and ice volume of Glacier No. 1 , in Tien Shan, China, using ground-penetrating radar (GPR). Radar data were collected with 100-MHz antennas that were spaced at 4 m with a step size of 8 m. The images produced from radar survey clearly show the continuity of bedrock echoes and the undulation features of the bedrock surface. Radar results show that the maximum ice thickness of Glacier No. 1 is 133 m, the thickness of the east branch of Glacier No. 1 averages at 58. 77 m while that of the west branch of Glacier No. 1 averages at 44. 84 m. Calculation on ice volume indicates that the ice volume of the east branch of Glacier No. 1 is 51. 87 × 106 m3 and that of the west branch of Glacier No. 1 is 20. 21 × 106 m3. The amplitude of the undulation of the bedrock surface topography revealed by radar profiles is larger than that of the glacier surface topography, indicating that the surface relief does  相似文献   

Measurements of sea ice thickness and its subice morphology analysis using ice-penetration radar in the Arctic Ocean     

孙波  邓新生  康建成  罗宇忠  温家洪  李院生 《极地研究(英文版)》2003,14(1)

1　IntroductionSeaice ,asanimportantcomponentoftheArcticclimatesystem ,hasdrawnsignifi cantscientificinterest.Seaicethicknessanditsmorphologyhavedramaticimpactsono cean atmosphere iceinteractions(Wadhams 1 994;Barryetal.1 993 ;Dickson 1 999;PadhamsandNorman 2 0 0 0 ) ,whichdirectlyaffecttheexchangeprocessandspeedofheatandmassbetweentheoceanandtheatmosphere ,dominatethephysicalmechanicsfea turesofseaice ,andaffecttheseaicemovement&deformationaswellasicefreezing&meltingprocess(Hollandetal.1 99…  相似文献   

Determination of ice thickness, subice topography and ice vol-ume at Glacier No. 1 in Tien Shan, China by ground penetrating radar   总被引：1，自引：0，他引：1  

孙波  张鹏  焦克勤  邓新生  温家洪 《极地研究(英文版)》2003,14(2)

We describe a radio-echo sounding (RES) survey for the determination of ice thickness, subglacial topography and ice volume of Glacier No. 1 , in Tien Shan, China, using ground-penetrating radar (GPR). Radar data were collected with 100-MHz antennas that were spaced at 4 m with a step size of 8 m. The images produced from radar survey clearly show the continuity of bedrock echoes and the undulation features of the bedrock surface. Radar results show that the maximum ice thickness of Glacier No. 1 is 133 m, the thickness of the east branch of Glacier No. 1 averages at 58. 77 m while that of the west branch of Glacier No. 1 averages at 44. 84 m. Calculation on ice volume indicates that the ice volume of the east branch of Glacier No. 1 is 51. 87 × 106 m3 and that of the west branch of Glacier No. 1 is 20. 21 × 106 m3. The amplitude of the undulation of the bedrock surface topography revealed by radar profiles is larger than that of the glacier surface topography, indicating that the surface relief does  相似文献   

油气反射波地震勘探记录中面波信息的提取   总被引：5，自引：0，他引：5  

曾校丰  钱荣毅  邓新生  陈振声  夏代学  刘世文  黄永平 《物探与化探》2001,25(6):443-446

以新疆准噶尔盆地沙漠地区油气反射波地震勘探资料中面波信息的提取为实例,简述了油气等深部地震勘探反射记录中面波信息的提取所具备的有利条件、存在的问题、具体的提取方法技术,以及从中获得的一些有价值的认识。  相似文献   

瑞雷波频散函数的快速算法   总被引：2，自引：0，他引：2  

曾校丰  崔伟群  许维进  邓新生 《地球物理学报》2002,45(Z1):261-267

Knopoff的瑞雷波频散函数快速算法存在上下限溢出和有效数字损失的缺陷,Schwab对该算法作了"归一化"和"细分层法"两项改进,也只是部分地控制了计算溢出,作者针对Knopoff和Schwab算法上存在的缺陷提出了二次归一化算法,有效地解决了瑞雷波频散函数快速算法所存在的计算溢出及计算的高频上限欠低的问题.  相似文献