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FAILURE MECHANISM ANALYSIS CONSIDERS THE HYDROLOGICAL AND SEISMIC CONDITIONS AT CHASHAN SITE IN CENTRAL TAIWAN
Large-scale Landslide Failure Mechanism Hydrologica Seismic Scenario Simulation
2018/4/18
The investigation results of large-scale landslides in the central part of Taiwan from Central Geologic Survey identified a new, largescale landslide in the Chashan Village of Alishan Township, Chiayi...
2013年以来，济南市为正确处理好保泉和市民饮用优质地下水的关系，组织实施了地表水转换地下水补源系列工程，旨在补源保泉的前提下开采地下水。大辛河地表水转地下水工程是其中重要的组成部分，为了查明大辛河渗漏补源后地下水的补给方向、径流速度等，在大辛河主要渗漏段开展了地下水示踪试验。结果显示：地下水渗漏补源后沿渗漏段—龙奥大厦—济南东区供水奥体加压站—贤文小区一线大体自南向北径流，视径流速度约45m/d...
济南北跨地区浅层地下水水化学多元统计分析
浅层地下水 水化学 多元统计 济南北跨地区
2018/4/2
根据浅层地下水的水流特征和人类活动影响，将研究区进行了水文地质单元分区，应用因子分析法对各分区浅层地下水水化学特征进行研究。结果表明：黄河沿岸（Ⅰ区）浅层孔隙水形成过程中经历了蒸发浓缩作用、混合作用和溶滤作用，以蒸发浓缩作用为主；径流条件差的引黄灌溉区（Ⅱ区），浅层孔隙水形成过程中经历了混合作用和蒸发浓缩作用，以混合作用为主；径流条件较好的地下水开采区（Ⅲ区），浅层孔隙水形成过程中经历了蒸发浓缩作...
Application of CSAMT in hydrogeology exploration in Shandong Province–An example from geothermal exploration in Changdao County (south four islands)
CSAMT Faults Heat storage anomaly Island hotspring
2018/3/23
The geophysical exploration in Changdao County is conducted using controlled source audio-frequency magnetotelluric (CSAMT) method. The inversion results reveal obvious evidences of one existed fault ...
海洋深水区水深变化急剧、峡谷纵横、火山发育，形成了崎岖的海底地貌，严重干扰了其下伏地层的地震资料时间偏移成像，进而影响到构造解释和圈闭落实。针对崎岖海底带来的影响，前人更多是从优化采集方案和地震资料特殊重处理，来获取高成像品质的地震资料。然而区域评价阶段进行大面积资料重处理成本高、周期长，无法满足低油价现状下勘探阶段降本增效的要求。基于地震正演模型分析，以琼东南盆地深水区宝岛凹陷为例，全面系统地建...
石英砂中甲烷水合物渗透率实验与模型验证
模型验证 石英砂 甲烷水合物
2018/12/25
多孔介质渗透率是影响天然气水合物开采的重要物理参数，目前研究该参数所采用的测试手段和多孔介质差别很大，没有形成较为公认的实验手段和测量结果。为此，研制了含甲烷水合物多孔介质渗透率一维测试装置，利用该装置合成甲烷水合物，并在稳定流态条件下测量流入液态水的流体流量和压差；基于达西定律的基本原理，采用稳态法注水计算了30～40目石英砂中甲烷水合物体系的渗透率。结果表明：①该装置可以在稳定压力、温度的条件...
Statistical characteristics of heavy metals content in groundwater and their interrelationships in a certain antimony mine area
Groundwater Heavy metals Content Statistical characteristics Interrelationships Antimony mine
2018/3/23
In recent years, most of domestic and foreign researches about heavy metal pollutions of metal mine mainly focus on water, soil and plants on the surface. There is lack of researches about heavy metal...
The Ordos Basin is located in the east of NW China that is composed of different aquifer systems. Karst groundwater is stored in the Carmbrian-Ordovician carbonates along the margins of the basin. Fis...
Ultrasonic wave extraction and simultaneous analysis of polycyclic aromatic hydrocarbons (PAHs) and phthalic esters in soil
Polycyclic aromatic hydrocarbons Phthalic Acid Esters Ultrasonic assistant extraction technique
2018/3/23
A method is developed for detection of polycyclic aromatic hydrocarbons (PAHs) and Phthalic Acid Esters (PAEs) in soil samples. Ultrasonic Wave Extraction under airtight circumstances is adopted to ex...
水利工程中的坝基和库岸岩体长期在高应力和高水压的共同作用下会产生蠕变现象，对工程稳定性影响很大。针对水利工程中岩石在流固耦合作用下的蠕变问题，选取某水电站引水隧道线路上震旦系砂岩为研究对象，利用MTS试验机和扫描电镜（SEM）分别对干燥和饱和状态下砂岩的常规物理力学参数和微观结构进行测试，分析砂岩在不同状态下的主要物理参数和微观结构变化；基于此，利用专用的微机控制轴压水压联合作用岩石流变试验系统，...
Stochastic simulation of soil water status on reclaimed land in northern Alber
E. geostatistics spatial variability semi-variogram uncertainty
2015/8/11
Studies of spatial variability and simulation of available soil water and extractable soil water are scarce and yet such data are essential in hydrologic and solute transport modeling. A study was con...
Kriging of Groundwater Levels – A Case Study
Geostatistics Groundwater levels Semivariogram Kriging India
2015/8/11
In this paper, application of the spatial statistical technique, kriging, for the spatial analysis of groundwater levels is shown. The data set consists of groundwater levels measured at about 60 poin...
Estimating Limiting Nutrient Loadings in an Interacting Surface and Ground Water Basin
L-THIA model water quality sediment Snake River Basin Idaho
2015/8/11
Watershed management requires the determination of both point and non-point sources of pollution within a watershed. The primary non-point source pollutants in a typical watershed are nutrients (mainl...
气动雾化进样-微波等离子体炬质谱法快速测定水样中的钙离子
水样 钙 气动雾化进样 微波等离子体炬质谱法
2015/12/22
环境水样中金属元素的分析通常采用电感耦合等离子体质谱法(ICP-MS), 检出限低、线性范围宽, 但仍存在使用功率高、耗气量大、分析成本高以及不适用于现场分析等不足。本文为降低金属元素分析成本, 建立了微波等离子体炬(MPT)与有机质谱耦合的方式检测水样中钙离子的新方法。详细探究了载气流速和维持气流速对钙离子响应信号的影响, 方法检出限为224.56 ng/L, 相对标准偏差(RSD)为1.2%~...
CHANGES IN THE LAND COVER AND LAND USE OF THE ITACAIúNAS RIVER WATERSHED, ARC OF DEFORESTATION, CARAJáS, SOUTHEASTERN AMAZON
Landsat, change detection, object based image analysis
2015/5/7
Human actions are changing the Amazon’s landscape by clearing tropical forest and replacing it mainly by pasturelands. The focus of this work is to assess the changes in the Itacaiúnas River watersh...