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中国北方裂隙岩溶不资源开发和保护中若干问题的研究 总被引：13，自引：0，他引：13
我国由于人口多、水资源贫乏,裂隙岩溶水成为北方重要的供水不源。本文从裂隙岩溶水和裂隙岩溶含水层的水力特性出发,研究了裂隙岩溶水井的成井深度,裂隙岩溶水资源的特点,补给量和储存量对水资源开发的影响,裂隙岩溶含水层中污染物的运移特征和治理对策以及城市总体规划或选厂址时如何保护裂隙岩溶水资源等问题。本文以解决实际应用问题为目的,从地下水水力学的角度研究中国北方的裂隙岩溶水的开发和保护。 相似文献
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姚桥煤矿水文地质特征及矿井水害防治措施 总被引：1，自引：0，他引：1
姚桥煤矿开采水文地质资料表明,煤层开采矿井的直接充水含水层--山西组煤层顶、底板砂岩裂隙含水层组与太原组灰岩岩溶裂隙含水层一般以静储量为主,富水性较弱;第四系松散含水层组、下石盒子组底部分界砂岩含水层、奥陶系灰岩岩溶裂隙含水层、老窑水主要是通过断裂或导水裂隙向矿井充水,故而提出了留设保安煤柱,探放断层水、老窑水等针对性的水害防治措施。 相似文献
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通过总结丰沛平原区水文地质条件和特征,对该区地下水开采利用现状及潜在水源地进行分析,计算了华栖隆起区岩溶水可利用资源量,探讨裂隙岩溶水利用的可行性。研究表明:丰沛平原区地下水主采层位为中上更新统孔隙含水层和新近系—下更新统孔隙含水层,已形成丰县城关—孙楼—常店和沛县—龙固2个大型超采漏斗区,总面积超过750 km~2,引发了大面积地面沉降;华栖隆起区为裂隙岩溶水的富水地段,总可采资源量为667.51万m~3/a,可作为潜在水源地进一步开展地下水勘查评价工作;裂隙岩溶水过量开采可能引发地面沉降、岩溶地面塌陷等地质灾害,后期应对裂隙岩溶水开采情况进行长期监测,合理开发利用水资源。华栖隆起区岩溶水距离城区近,水量大,水质好,开发难度小,具有可观的经济价值。 相似文献
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孙疃煤矿水文地质条件复杂,水害问题直接影响着煤炭资源的安全高效开采。基于水文地质背景资料,探讨了煤矿充水条件,并对煤矿涌水量的控制因素进行了系统分析。结果认为,属于新生界的松散层孔隙含水层、位于煤层之间的砂岩内裂隙含水层以及石灰岩岩溶-裂隙含水层是矿区的主要含水层。新生界的第四含水层,煤层顶底板砂岩裂隙含水层,灰岩岩溶-裂隙含水层以及老坑水是矿区充水的主要来源。地下水主要沿断层及构造裂隙、岩溶陷落柱、采动冒落带裂隙、底板受其承压水的影响而产生的破坏带裂隙等通道相矿井运移。煤矿月平均涌水量171.01m3/h,主要受煤层顶底砂岩裂隙富水性、断裂及构造裂隙以及采掘面积、煤产量和巷道掘进等开采因素影响,而大气降水、地表水受第四系更新统隔水层阻隔,与矿井涌水量没有关系。 相似文献
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通过总结丰沛平原区水文地质条件和特征,对该区地下水开采利用现状及潜在水源地进行分析,计算了华栖隆起区岩溶水可利用资源量,探讨裂隙岩溶水利用的可行性。研究表明: 丰沛平原区地下水主采层位为中上更新统孔隙含水层和新近系—下更新统孔隙含水层,已形成丰县城关—孙楼—常店和沛县—龙固2个大型超采漏斗区,总面积超过750 km2,引发了大面积地面沉降; 华栖隆起区为裂隙岩溶水的富水地段,总可采资源量为667.51万m3/a,可作为潜在水源地进一步开展地下水勘查评价工作; 裂隙岩溶水过量开采可能引发地面沉降、岩溶地面塌陷等地质灾害,后期应对裂隙岩溶水开采情况进行长期监测,合理开发利用水资源。华栖隆起区岩溶水距离城区近,水量大,水质好,开发难度小,具有可观的经济价值。 相似文献
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丰沛平原区地下水开采利用现状及潜在水源地分析 总被引：1，自引：0，他引：1
通过总结丰沛平原区水文地质条件和特征,对该区地下水开采利用现状及潜在水源地进行分析,计算了华栖隆起区岩溶水可利用资源量,探讨裂隙岩溶水利用的可行性。研究表明: 丰沛平原区地下水主采层位为中上更新统孔隙含水层和新近系—下更新统孔隙含水层,已形成丰县城关—孙楼—常店和沛县—龙固2个大型超采漏斗区,总面积超过750 km2,引发了大面积地面沉降; 华栖隆起区为裂隙岩溶水的富水地段,总可采资源量为667.51万m3/a,可作为潜在水源地进一步开展地下水勘查评价工作; 裂隙岩溶水过量开采可能引发地面沉降、岩溶地面塌陷等地质灾害,后期应对裂隙岩溶水开采情况进行长期监测,合理开发利用水资源。华栖隆起区岩溶水距离城区近,水量大,水质好,开发难度小,具有可观的经济价值。 相似文献
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煤炭开采条件下三姑泉域岩溶含水层保护评价 总被引：1，自引：1，他引：0
三姑泉域是我国典型的北方岩溶区,同时位于国家规划的晋东大型煤炭基地,煤炭开采与水资源保护之间的问题较为突出。多年来区内煤炭资源的大规模开采造成了区域地下水位下降、水质恶化等现象。因此开展北方岩溶区煤炭基地含水层保护评价对水资源保护及经济可持续发展具有十分重要的意义。本文从含水层脆弱性、含水层功能和煤炭开采影响力三方面建立综合评价指标体系,采用APH法进行三姑泉域岩溶含水层综合保护评价。针对煤炭基地特征,采用增加了煤炭采空区指标的COP修正模型评价了含水层的脆弱性。含水层功能评价分别从供水能力与生态、大泉维持能力开展;煤炭开采影响力评价从开采活动及煤炭地质结构两方面开展。综合评价结果显示需要重点保护的区段为岩溶大泉、水源地及地表渗漏段,其次为岩溶强径流带及煤炭剧烈开采区,与实际情况相符。 相似文献
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城市屋顶雨水回灌裂隙岩溶含水层的国内外案例介绍——兼对济南市屋顶雨水回灌裂隙岩溶含水层问题的思考 总被引：2，自引：2，他引：0
通过监测和分析济南市市区降水、屋面雨水水质和水量过程,屋顶雨水属微污染类水,经前期雨水弃流和预处理达到一定质量标准,通过管井回灌到裂隙岩溶含水层,可用于饮用水供水和保护地下水环境。已做的示踪试验表明,北方岩溶含水介质多属多重裂隙岩溶通道,因此在人工开采条件下,回灌应关注快、慢速流带来的不同水质变化问题,包括屋面雨水与裂隙岩溶介质的水岩作用。澳大利亚的案例说明,裂隙岩溶含水层对不同污染物有着不同的衰变效果。100多年来Mount Gambier市城区雨洪水经非承压石灰岩含水层径流一直排放到作为城市供水的蓝湖,到目前它对蓝湖水质没有表现出任何可量度的损害。但对于济南市的屋顶雨水回灌裂隙岩溶含水层,仍有许多问题需要研究。 相似文献
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通过对巨野煤田梁宝寺井田含水层、隔水层及断层导水规律的分析,指出了对煤矿生产所造成的影响及生产中应注意的问题,认为梁宝寺井田开采上组煤的水文地质类型为裂隙、岩溶类简单至中等类型,开采下组煤的水文地质类型为岩溶裂隙类中等至复杂型。 相似文献
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Emily Keeble David I. Whiteside Michael J. Benton 《Proceedings of the Geologists' Association. Geologists' Association》2018,129(2):99-119
Pant-y-ffynnon Quarry in South Wales yielded a rich cache of fossils in the early 1950s, including articulated specimens of new species (the small sauropodomorph dinosaur Pantydraco caducus and the crocodylomorph Terrestrisuchus gracilis), but no substantial study of the wider fauna of the Pant-y-ffynnon fissure systems has been published. Here, our overview of existing specimens, a few described but mostly undescribed, as well as freshly processed material, provides a comprehensive picture of the Pant-y-ffynnon palaeo-island of the Late Triassic. This was an island with a relatively impoverished fauna dominated by small clevosaurs (rhynchocephalians), including a new species, Clevosaurus cambrica, described here from a partially articulated specimen and isolated bones. The new species has a dental morphology that is intermediate between the Late Triassic Clevosaurus hudsoni, from Cromhall Quarry to the east, and the younger C. convallis from Pant Quarry to the west, suggesting adaptive radiation of clevosaurs in the palaeo-archipelago. The larger reptiles on the palaeo-island do not exceed 1.5?m in length, including a small carnivorous crocodylomorph, Terrestrisuchus, and a possible example of insular dwarfism in the basal dinosaur Pantydraco. 相似文献
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The effect of water on accessory phase solubility in subaluminous and peralkaline granitic melts 总被引：4，自引：0，他引：4
The solubilities of columbite, tantalite, wolframite, rutile, zircon and hafnon were determined as a function of the water contents in peralkaline and subaluminous granite melts. All experiments were conducted at 1035 °C and 2 kbar and the water contents of the melts ranged from nominally dry to approximately 6 wt.% H2O. Accessory phase solubilities are not affected by the water content of the peralkaline melt. By contrast, solubilities are affected by the water content of the subaluminous melt, where the solubilities of all the accessory phases examined increase with the water content of the melt, up to 2 wt.% H2O. At higher water contents, solubilities are nearly constant. It can be concluded that water is not an important control of accessory phase solubility, although the water content will affect diffusivities of components in the melt, thus whether or not accessory phases will be present as restite material. The solubility behaviour in the subaluminous and peralkaline melts supports previous spectroscopic studies, which have observed differences in the coordination of high field strength elements in dry vs. wet subaluminous granitic glasses, but not for peralkaline granitic glasses. Lastly, the fact that wolframite solubility increases with increasing water content in the subaluminous melt suggests that tungsten dissolved as a hexavalent species. 相似文献
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Muriel Rocher Stéphane Baize Stéphane Jaillet Edward Marc Cushing Yannick Lozac&#x;h Francis Lemeille 《Comptes Rendus Geoscience》2003,335(8):701-708
Calcite samples were extracted both from the rock matrix and the superficial coating of a karstified fault plane of an underground quarry, located in the eastern border of the Paris basin. The karstification is dated as Quaternary. Analysis of mechanical calcite twinning reveals that only the calcite matrix has also undergone a compression trending WNW that can be attributed to the Mio-Pliocene alpine collision. Both coating and matrix have undergone a strike-slip regime with σ1 roughly trending north–south, that could correspond to the regional present-day state of stress, a strike-slip compression rather trending NNW, modified by local phenomena. To cite this article: M. Rocher et al., C. R. Geoscience 335 (2003). 相似文献
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正20141756 Chen Ruige(Mathematical College,China University of Geosciences,Beijing100083,China);Zhou Xun Numerical Simulation of Groundwater Level Fluctuation in a Coastal Confined Aquifer with Sloping Initial Groundwater Level Induced by the Tide(Geological Bulletin of China,ISSN1671-2552,CN11-4648/P,32(7),2013,p.1099-1104,6 illus.,16 refs.) Key words:confined water,groundwater level 相似文献
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正20141408 Cai Jia(Institute of Geology,Chinese Academy of Geological Sciences,Beijing100037,China);Liu Fulai Petrogenesis and Metamorphic P-T Conditions of Garnet-Spinel-Biotitebearing Paragneiss in Danangou Area,Daqingshan-Wulashan Metamorphic Complex Belt(Acta Petrologica Sinica,ISSN1000-0569,CN11-1922/P,29(7), 相似文献
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正20142386An Guoying(China Aero Geophysical Survey and Remote Sensing Center for Land and Resources,Beijing 100083,China)Application of Satellite Remote Sensing in Regional Hydrogeological Investigation:Taking Cenozoic Strata in Wenquan Sheet(1∶250 000)of Karakoram Range as an Example(Geosci- 相似文献
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正20141016An Chengbang(Key Laboratory of Western China’s Environmental Systems,Ministry of Education,Lanzhou University,Lanzhou 730000,China);Zhao Yongtao Lake Records during the Last Glacial Maximum from Xinjiang,NW China and Their Climatic Impli- 相似文献
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正20141538 Cao Qing(School of Earth Sciences and Engineering,Xi’an Petroleum University,Xi’an 710065,China);Zhao Jingzhou Characteristics and Significance of Fluid Inclusions from Majiagou Formation,Yichuan Huangling Area,Ordos Basin(Advances in Earth Science,ISSN1001-8166,CN62-1091/P,28(7),2013,p.819-828,7 illus.,3 tables,43 refs.) 相似文献
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正20142002 Wei Hualing(Institute of Geophysical and Geochemical Exploration,Chinese Academy of Geological Sciences,Langfang065000,China);Zhou Guohua Element Content and Mineral Compositions in Different Sizes of Soil in Tongling Area,Anhui Province(Geological Bulletin of China,ISSN1671-2552,CN11-4648/P,32(11),2013,p.1861 相似文献