长春市地下水开发环境问题研究   总被引：3，自引：0，他引：3  

朱彩霞 《吉林地质》2001,20(1):53-56,60

本文根据近期地下水动态监测资料，结合地下水赋存的环境水文地质条件，分析论述了长春市由于不合理开发地下水资源而产生地下水水位下降，水量削减、水质污染、地面沉降等环境地质问题，提出了防治对策及建议。  相似文献   

孤北21三维目标处理实例     

尚新民  石林光  赵庆国  赵明金  童思友 《物探与化探》2001,25(1):54-60

结合地质目标及处理要求,对孤北21井区三维资料进行了分析。对不同处理目标采取了相应的处理措施,取得了较好的处理效果。  相似文献   

曲石湾滑坡体成因分析及防治措施研究   总被引：4，自引：1，他引：4  

吕义清  王银梅 《中国地质灾害与防治学报》2001,12(1):27-29

滑坡的形成对周围环境造成很大的影响，并严重制约地方经济发展，威胁人民生命财产安全，因此，滑坡成因及防治措施的研究具有重要意义。本文通过实际资料，分析曲石湾滑坡体的形成机理，有针对性的提出曲石湾滑坡的防治措施。  相似文献   

世界一些大城市防灾减损的比较研究   总被引：2，自引：0，他引：2  

崔秋文  陈长林  陈英方 《国际地震动态》2001,(3):13-18

比较分析了一些大城市的防灾减损措施，提出了具体对策。  相似文献   

A Reliability Based Expert System for Assessment and Mitigation of Landslides Hazard Under Seismic Loading     

Al-Homoud  Azm S.  Tahtamoni  Wisam W. 《Natural Hazards》2001,24(1):13-51

Different models were developed for evaluating the probabilistic three-dimensional (3-D) stability analysis of earth slopes and embankments under earthquake loading using both the safety factor and the displacement criteria of slope failure.The probabilistic models evaluate the probability of failure under seismic loading considering the different sources of uncertainties involved in the problem. The models also take into consideration the spatial variabilities and correlations of soil properties. The developed models are incorporated in a computer program PTDDSSA.These analysis/design procedures are incorporated within a code named SARETL developed in this study for stability analysis and remediation of earthquake triggered landslides. In addition to the dynamic inertia forces, the system takes into consideration local site effects.The code is capable of assessing the landslide hazard affecting major transportation routes in the event of earthquakes and preparing earthquake induced landslide hazard maps (i.e., maps showing expected displacements and probability of slope/embankments failure) for different earthquake magnitudes and environmental conditions. It can also beused for proposing a mitigation strategy against landslides.  相似文献   

论地质环境的保护与治理   总被引：1，自引：0，他引：1  

刘星辉 《湖南地质》2001,20(1):43-46

人类社会的生存和发展，必然开发利用国土资源，从而造成对地质环境的扰动，因此，我们应从发展变化的观点看待地质环境，减少对地环境的坡坏，加强地质环境的治理。  相似文献   

结构主动控制和混合控制的装置和方法     

谭承业 《地震研究》1996,19(1):85-94

本系统讨论了土木工程结构的主动控制和混合控制设备的构造和性能及其实际应用的效果；对一般非线性优化控制方法及其效用做了分析介绍；对当前土木工程结构控制研究中存在的困难和问题以及今后的发展趋势进行了分析讨论和展望。  相似文献   

Investigation on the geological and geotechnical factors leading to a major slope failure at a selected site on a Jordanian highway     

Azm S. Al-homoud  Salah Taqieddin  Safwan Saket 《Natural Hazards》1995,12(3):203-224

During and after the very wet 1991/1992 winter experienced in Jordan, significant slope failures occurred along several sections of the new Irbid-Amman highway in Jordan. The topography over most of the route is hilly, and significant amounts of cut and fill were used to construct the highway. One such slope failure lies at 44+800 km on the highway south of Jerash City at a distance of about 5.0 km from Wadi Zerqa bridge. A landslide occurred downslope of the highway embankment resulting in a collapse of the most of the gabbion wall supporting the embankment. This paper deals with the overall stability of the slope at 44+800 km. It presents the geological and geotechnical studies carried out at this site, identifies the causes and mechanism of instability, and presents appropriate remedial measures. The study concluded that the landslide movement occurred within the colluvium material. It resulted primarily from excess piezometric pressures generated within the slope as a direct consequence of inadequate drainage. It is recommended to reconstruct the entire gabbion wall with its foundation seated on the sandstone that underlies the colluvium and to install a surface drainage system at the site.  相似文献   

提高中深斜井通风效果的技术措施          下载免费PDF全文

陆愈实  张国屏  张青海  张仲伦 《探矿工程》1995,(4):34-36

针对目前中深斜井通风存在的问题，在风筒接头，风筒节长，风筒直径，风筒的布置及修补等方面作了阐述了，并对改进前，后系统的送风效果进行比较。  相似文献   

“入世“给地质勘查业带来的机遇与挑战     

崔正严  赵向辉 《吉林地质》2003,22(1):62-68

我国"入世"后,外国跨国公司必然会进入我国的地质市场.对比,本文指出了国内地勘单位与跨国公司相比,在技术力量、资本和管理水平等方面存在的问题,以及它们的介入所带来的不利影响和机遇,针对这些问题提出了具体的对策及所采取的措施.  相似文献