Study on non-destructive detection technology on travertine dam in sparkling lake under the background of "8.8" earthquake in Jiuzhaigou valley
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摘要: 为研究震后九寨沟钙华景区的溶洞、裂隙、暗流等地质特性,丰富钙华景区岩溶洞穴无损探测技术,探讨了多物探技术在多孔疏松钙华地区作业的可靠性。首次运用地质雷达法及高密度电法相结合的无损探测技术,在九寨沟景区火花海特定区域进行了现场勘查和无损探测试验。结合对比两种无损探测成果与测区内出露地质剖面3组勘探数据,结果发现:高密度电法与地质雷达法相结合,两者能优劣互补,相互佐证,在解决钙华区域浅部溶洞、暗流、裂隙等工作中,对探测目标体具有极高的识别度。两种方法探测数据与震后出露剖面地质特征保持极高的一致性,验证了两种无损检测方法在多孔疏松介质条件下数据的真实可靠性,解决了多物探技术在多孔疏松介质地区施工的疑点和难点,丰富了工程物探领域技术。Abstract: In order to investigate the geological characteristics of karst,fissures and underground currents in Jiuzhaigou valley travertine scenic spot after the earthquake, enrich the non-destructive detection technology of karst cave in travertine scenic area, and discuss the reliability of multi-geophysical exploration technology in porous and loose travertine area,in this paper,the non-desctructive detection technology combining Ground Penetrating Radar (GPR) and high-density resistivity method was used to carry out field survey and nondestructive detection test in the specific area of the sparkling lake in Jiuzhaigou valley particularly.Comparing the two kinds of non-destructive detection results with three groups of exploration data of the exposed geological section in the survey area,it was found that the combination of high-density resistivity method and ground penetrating radar method can complement each other ,support each other,and especially show a high degree of recognition for the detection target when solving the problems of shallow karst,underground current and fracture in the travertine area. The non-destructive detection data of the two methods are highly consistent with the geological characteristics of the exposed section after the earthquake, indicating the true reliability of the two non-destructive detection technology data under the condition of porous and loose media,as well as solving the doubts and difficulties of multi-physical exploration technology in the construction of porous and loose media areas,which is of great significance for enriching the field of engineering geophysical exploration technology.
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[1] 杨俊义.九寨沟黄龙地区钙华漏斗的特征与成因探讨[J].水文地质工程地质,2004,2(2):90-94. [2] 安德军,李庆忠,姜跃斌,等.黄龙国家地质公园[J].国土资源情报,2013,6:F0003. [3] Zhu X W,Waltham T. Tiankeng:Definition and description[J].Cave and Karst Science,2005,32(2):75-79. [4] 朱学稳.中国喀斯特天坑及其科学与旅游价值[J].科技导报,2001,19(10):60-63. [5] 朱学稳,朱德浩,黄保健,等.喀斯特天坑略论[J].中国岩溶,2003,22(1):51-65. [6] 曲瑞.九寨沟景区地学景观与地震地质灾害的风险分析[D].成都:成都理工大学,2019. [7] 邓贵平.九寨沟旅游地学景观成因与保护[M].北京:科学出版社,2012. [8] 曹锐,冉瑜,吕玉香,等.物探与水文地质分析结合在岩溶地区找水定井中的应用:以黔江区罗家坝ZK3井为例[J].中国岩溶,2018,37(2):280-285. [9] 程亚平,蒋灵芝,黎柳月,等.综合物探技术探测平果铝厂赤泥堆场岩溶发育特征[J].中国岩溶,2016,35(6):688-698. [10] 杜成亮,甘伏平,张远海,等.地球物理方法探索隐伏岩溶古河道:以湖南郴州万华岩为例[J].中国岩溶,2018,37(4):624-631. [11] 吴亚楠.高密度电阻率法在莱芜市泉河地区岩溶地质勘查中的应用[J].中国岩溶,2018,37(4):617-623. [12] 代群威,党政,彭启轩,等.钙华天然海绵地质体多孔特性及其对水循环调节意义:以四川黄龙为例[J].矿物学报,2019,39(2):219-225. [13] 甘建军.九寨沟核心景区水循环系统研究[J].水文地质工程地质,2010,37(1):34-39. [14] 江为为,郝天珧,胥颐,等.中国中南地区综合地质地球物理研究[J].地球物理学报,2007,50(1):171-183. [15] 康彦仁.岩溶塌陷的形成机制[J].广西地质,1989,2(2):80-90. [16] 蒙彦,殷坤龙,雷明堂.水位波动诱发岩溶塌陷的概率分析[J].中国岩溶,2006,25(3):239-245. [17] 涂杰楠,童立强,王珊珊,等.南洞地下河流域南部岩溶石漠化空间分布特征分析[J].中国岩溶,2016,35(5):566-573. [18] 陈筠,池昌峰,徐东升,等.探地雷达散射矩阵在估算地下管线方位角的应用[J].中国岩溶,2020,39(1):101-109. [19] 李俊杰,朱红雷,赵国军,等.地质雷达电磁干扰分析及在隧洞岩溶探测中的应用[J].中国岩溶,2018,37(2):286-293. [20] 高强山,彭韬,付磊,等.探地雷达技术对表层岩溶带典型剖面组构刻画与界面识别[J].中国岩溶,2019,38(5):759-765. [21] 罗润林,邓海鹏,李亚南,等.随机岩溶介质的电阻率正演模拟[J].中国岩溶,2019,38(1):117-123. [22] 汤克轩,赵楠.可溶岩地层的地球物理特征及其地质解译[J].中国岩溶,2019,38(4):578-583.
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