浅议房产面积测绘法律纠纷     

赵保萍  张伟 《测绘与空间地理信息》2008,31(4)

论述了房产面积测绘法律纠纷中的一些热点问题,并提出了一些意见和建议以供讨论和参考.  相似文献   

武山铜矿岩溶塌陷规律分析及防治   总被引：1，自引：0，他引：1  

王超  黄琨  周文生  王宁涛 《化工矿产地质》2008,30(4)

武山铜矿岩溶地面塌陷主要影响因素包括岩溶地下水水位降落漏斗范围扩展,覆盖层岩性、厚度、构造及岩溶的发育程度等。对武山铜矿南矿带岩溶塌陷进行稳定性分区:南矿带基本稳定区(Ⅰ区);南矿带南部岩溶塌陷不稳定区(Ⅱ区);南矿带南部岩溶塌陷未来不稳定区(Ⅲ区)。提出从时空上及规模上对岩溶塌趋势进行预测预报;做好地面防渗透工作;合理开采,减少沉降等防治岩溶塌陷的对策和建议,对于该地区避免造成居民的生命和财产损失有重要指导意义。  相似文献   

Modeling fractures as interfaces: a model for Forchheimer fractures     

Najla Frih  Jean E. Roberts  Ali Saada 《Computational Geosciences》2008,12(1):91-104

In this paper we are concerned with modeling single phase flow in a medium with known fractures. In particular we are interested in the case in which the flow rate in the fractures is large enough to make it appropriate to use Forchheimer’s law for modeling the flow in the fractures even though the flow in the surrounding domain is such that Darcy’s law is adequate. We describe a model in which the fractures are treated as interfaces. We also consider the case of intersecting fractures and the case of nonconforming meshes.  相似文献   

云南安宁磷矿区富矿的分布规律及控制因素   总被引：1，自引：0，他引：1  

朱林生  朱杰勇  陈启亮  祝爱明  石泉 《地质与资源》2008,17(1):40-44

云南安宁磷矿区磷矿富矿赋存于寒武系梅树村组中谊村段的上矿层（€₁m^1-3）中.该矿区富矿包括原生富矿和风化富矿.磷矿富矿在各矿段的分布有着明显的差异.原生富矿的形成受沉积环境和沉积作用的控制,风化富矿的形成受构造、上覆盖层、矿层性质等因素的控制.  相似文献   

Self-affine growth pattern of earthquake rupture zones     

Hiroyuki Nagahama 《Pure and Applied Geophysics》1994,142(2):263-271

Data from 41 moderate and large earthquakes have been used to derive a scaling law for fault parameters. Fault lengthL, widthW and areaS are empirically related byLS andWS where 0.6<<0.7, 0.3<<0.4 and +=1. These relations indicate that the growth pattern of earthquake rupture zones is statistically self-affine. It is also found that these relations are similar to the relation derived from a diffusion-limited aggregation (DLA) model with anisotropic sticking probability. This suggests that a modified DLA model could describe the evolution of earthquake rupture zones.  相似文献   

四川省乡镇矿业管理法规的特色和几个问题的探讨     

何继强 《四川地质学报》1994,(3)

１９９４年四川省八届人大常委会第九次会议通过的《四川省乡镇集体矿山企业和个体采矿管理条例》,体现了社会主义市场经济的基本原则．明确了省、市（地、州）、县三级地矿行政主管部门的法律地位和职能、职责,强化和完善了采矿权管理制度和矿产资源开发及矿产品运销的监督管理制度,这标志着四川省乡镇矿业管理的法规体系逐渐趋于完备,为乡镇矿业管理创造了良好的行政执法条件。同时给各级地矿部门提出了新的要求,在实施这一条例中,需要引起注意的若干问题,本文也作了探讨。  相似文献   

COSTS AND BENEFITS OF POLLUTION CONTROL IN PENNSYLVANIA,NEW YORK,AND NEW JERSEY, 1840–1906     

CHRISTINE MEISNER ROSEN 《Geographical review》1998,88(2):219-240

ABSTRACT. Judges in Pennsylvania saw the costs and benefits of protecting people from industrial pollution quite differently from judges in New York and New Jersey between 1840 and 1906. Not only did they invoke balancing doctrine more than did judges in New York and New Jersey; but when costs and benefits were considered, Pennsylvania judges almost always concluded that the price of pollution abatement was too high to justify enjoining polluting industries. New York and New Jersey judges commonly did the reverse, acknowledging great social value and little cost to making businesses alleviate pollution. Judicial interpretation of the notions of cost and benefit mirrored the political, economic, and social conditions in each state, conditions that differed across time and place.  相似文献   

双相岩石流变学研究评述   总被引：3，自引：0，他引：3  

焦述强 《地质科技情报》1998,17(1):13-18

从自相容理论,Ｖｏｉｇｔ－Ｒｅｕｓｓ极限理论及显微构造分析方法３个方面说述了当前双相岩石流变学的研究现状和发展方向;介绍了双相岩石流谱学实验的一些研究进展和存在问题;流动律合成的方法目前只有两种：Ｔｕｌｌｉｓ的经验公式和Ｊｉ的迭代公式。  相似文献   

Estimation of Wind Wave Frequency Spectra by Use of the Arcsine Law   总被引：1，自引：0，他引：1  

戴德君  乔方利王伟 袁业立 《中国海洋工程》2007,21(1):105-114

In the present study,the surface elevation of wind waves oberved in laboratory and in the Bohai Sea are adopted for the estimation of the wind wave frequency spectrum by use of the method of the arcsine law(MAL).The traditional method uses the surface elevation to calculate the correlation and then estimate the frequency spectrum while the MAL,presented by Yu and Lan(1979),uses the time sequence of zero-crossing points of surface elevation rather than directly the surface elevation to calculate the correlation.66 sets of wind wave data obtained in laboratory and 420 sets of data observed in the Bohai Sea are adopted for the examination of the method introduced by Yu and Lan.Results show that the MAL can give reliable estimation of wind wave spectra.Correlation and form of spectra estimated by the MAL are similar to those estimated by the traditional method.The peak frequency and the spectral density in peak frequency by the MAL are close to those obtained by the traditional method.  相似文献   

国际海洋划界技术发展与探讨   总被引：3，自引：0，他引：3  

魏合龙  林峰  何书锋  沈文周 《海洋地质前沿》2003,19(6):1-4

国际海洋划界的地理环境复杂，涉及学科多，既有法律问题也有技术方法问题。适用于海域划界的国际法原则有多种，在这些海域划界原则指手下涉及了多种因素，并形成了多种划界方法，这样必将使划界工作变得异常复杂。GIS、决策支持系统等技术的应用将在国际海洋划界的管理方面提供强有力的支持，并成为重要的决策工具。  相似文献