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- For solving the problem,make a study of growth law and space distribution law of karstic collapse column in North China area. 为了解决陷落柱问题,文章对华北地区陷落柱的发育规律和陷落柱的空间分布规律进行了研究。
- By application of neural network method, predicting model of karst collapse is constructed. 应用人工神经网络方法建立了岩溶塌陷预测模型。
- The results show that geological radar is an effective method in the investigation of karst collapse. 结果表明,地质雷达在岩溶塌陷调查中应用效果较好。
- The karstic collapse column is the old bedrock subside which the stiff non-dissolubility rock caved in subjacent karst cave. 岩溶陷落柱系指坚硬的非可溶性岩层向下伏岩溶洞穴坍塌的老基岩塌陷。
- Karst collapse in intermontane basin is not completely different from that in Tangshan City. 摘要发生在唐山市西北部山间盆地的岩溶塌陷,具有与唐山市区不完全相同的时空分布特点。
- Karst collapse colum in North China already becomes one of the main geological disaster in mine mining. 华北地区岩溶陷落柱已成为矿井开采中最主要的地质灾害之一。
- In the common situation,the seismic response of small scale karst collapse column(KCC) is not obvious. 通常情况下,较小规模陷落柱的地震响应特征不明显。
- Due to overpumping groundwater, hazard of mantled karst collapse may often take place there. 因过量抽取地下水,造成覆盖型岩溶塌陷灾害。
- The formation and expansion of a soil cavity is among the basic conditions of the overburden karst collapse. 摘要土洞的形成与扩展是产生覆盖型岩溶地面塌陷的前提条件之一。
- Karst collapse near the dam foundation or building threaten directly building stability and safety, even result in building accident. 如果岩溶塌陷发生在坝基或建筑物部位,则直接威胁建筑物稳定安全,有的还造成建筑物的失事。
- The paper studies the geological structures of these five karst collapse belts.The Dongwu movement controlled the development of paleokarst. 文章对五个塌陷带的地质构造进行了研究,早二叠世末期的东吴运动,在区内对古岩溶的控制十分明显。
- The karst collapse is the developing and forming result of soil-hole, and the critical soil-hole is the last developing phase. 摘要岩溶塌陷是土洞形成与发展的结果,临界土洞的形成是土洞发育的最终阶段。
- The clustering weights were endowed by using AHP method to evaluate the influence of factors to karst collapse scientifically and exactly. 为了科学准确地评估各因子对鞍山岩溶塌陷的影响,采用AHP法来确定危险性区划中的聚类权值。
- Based on the principle of suction, a natural aeration method is proposed for prevention of Karst collapse, which has been tried in some areas in China with satisfactory results. 在真空吸蚀原理的基础上,提出了防治塌陷的自然充气法,在中国某些地区试验效果良好。
- Karst collapse columns, sandstone aquifers in coal measures and transmissible faults are usually hydrogeologic problems in North China type coal measures. 陷落柱、煤系砂岩水和断层导水是我国华北型含煤地层常见的水文地质问题。
- So, for the railway route selection in karst area, it is important to optimize the railway route on the basie of the credible evaluation of karst collapse. 因此,对于岩溶区铁路选线设计,如何在较为可信的岩溶塌陷稳定性评判基础上,作出选线方案优化已具有重要的现实意义。
- The ground water runoff condition not only influences the karstic collapse column’s water conducted, moreover controls the distribution of strang water conducted karstic collapse column. 地下水径流条件不仅影响岩溶陷落柱导水能力的强弱,而且直接控制强导水型岩溶陷落柱的分布。
- To reveal the mechanism of karst collapse induced by groundwater pumping, the authors analyse the expanding condition of soil cavity by analytical method and put forward the concept of spalling force. 为研究人工抽水引起的岩溶地面塌陷的机理,用解析法分析了土洞扩展的条件,提出了剥落力的概念,认为土洞的扩展条件是剥落力大于土体抗拉强度。
- The Doulishan coal-mining district is an irregular triangle compound synclinal basin with a complex hydrogeologic setting.There are five karst collapse belts in the coal-mining district. 斗笠山矿区为一不规则的三角形复式向斜汇水盆地,水文地质条件复杂,本区构成了五个塌陷带。