1) covered karst water
隐伏岩溶水
1.
The covered karst water in Dacha valley is consider ed as an independent rectilinear system by the exponent\|piston model(EPM).
运用指数 -活塞模型 (EPM) ,将平凉大岔河隐伏岩溶水系统视为线性时不变系统 ,以环境同位素氚作为输入输出信号 ,计算岩溶水系统地下水滞留时间及其他参
2) concealed karst water
隐伏岩溶裂隙水
3) covered karst water system
隐伏岩溶水系统
4) blind karst
隐伏岩溶
1.
According to problems and present academic disputes around geotechnical engineering survey on engineering with blind karst,some analysis and demonstration were made based on the general condition of surveyed area.
就当前隐伏岩溶岩土工程勘察研究中存在的问题与争论,以研究地区一般情况,结合典型实例进行了分析、阐述。
5) covered karst
隐伏岩溶
1.
Evaluation on the karst collapse susceptible degree in covered karst region ——Example for Taian City;
隐伏岩溶区岩溶塌陷易发程度评价——以泰安为例
2.
The covered karst is the great important engineering geologic problem recently discovered in Three Gorge Reservoir region.
三峡库区隐伏岩溶问题是近期发现的重大工程地质问题。
3.
To eliminate the hidden disasters of covered karst, to ensure safety of rail transportion, and to research on the mechanism and operational technology of the grouting remediation, to optimize design parameters, to reduce construction costs, the five subgrade sections of typical karst phenomena are selected and tested for grouting treatment prior to construction in large scale.
南昆线通过碳酸岩地段的路基长约300公里,为消除隐伏岩溶隐患,确保铁路运输安全,我们在开展大规模注浆整治施工之前,选择具有代表性的岩溶异常工点5处进行注浆加固施工试验。
6) hidden karst
隐伏岩溶
1.
This paper proposes the problem of classification concerned with the two kinds of hidden karst which are quite different in engineering geological specialities.
本文提出了对两种在工程地质特征上截然不同的隐伏岩溶进行分类的问题,并通过具体实例,分析了两者在分布区域、工程病害成因、勘测方法上的主要差别。
2.
The paper adopting integrated geophysical technique of ground penetrating radar combination with seismic imaging method and using an application of the successful detection of the karst and fissure zone in a tunnel of Yiwan railway as example,confirms the effectiveness and feasibility of the method in the exploration of hidden karst in railway tunnel.
本文采用地质雷达与地震映像法相结合的综合物探技术,以宜万铁路某一隧道内的岩溶及裂隙带的成功探测为例,证实了该方法在铁路隧道底部隐伏岩溶勘查中的可行性和有效性。
补充资料:岩溶水
岩溶水 cavern water 赋存于可溶性岩层的溶蚀裂隙和洞穴中的地下水。又称喀斯特水。其最明显特点是分布极不均匀。在可溶性岩层裸露于地表的补给区,入渗补给有两种方式:一种为灌式补给,在低洼处汇集一定量的降水,通过漏斗或落水洞灌入地下,有时,整条河流通过这类洞穴潜入地下;另一种为渗入式补给,通过地面上微小的裂隙,较缓慢地渗入地下,汇入岩溶通道和地下河系之中。在岩溶地区,往往在几百乃至上千平方千米之内,岩溶水可通过一个泉或泉群集中排泄。而补给区则成为地表水缺乏,岩溶水又埋得很深的缺水地区。呈现出岩溶水空间分布极不均一的奇特现象。岩溶水水位动态变化幅度大而且变化快。岩溶泉往往雨季流量急增,而雨后又骤减,呈现出岩溶水时间分布极不均一的奇景。岩溶水由于循环交替快速 ,一般为矿化度小于1克/升的重碳酸钙镁型淡水。岩溶水同时存在于由大小悬殊的孔隙、裂隙、洞穴和通道组成的同一含水系统中,无压水流与承压水流并存,层流与紊流并存。但总体上岩溶水以层流为主。岩溶含水系统一般水量丰富、水质优良,常作大中型供水源。位于岩溶水分布地区的矿坑,容易产生突然大量涌水,甚至造成淹矿事故。 |
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