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矿产资源储量管理是国土资源行政管理重要的基础性工作。介绍了江苏省的矿产资源储量套改和储量登记工作的基本情况以及工作收获,同时对下一步矿产资源储量管理工作提出了4点设想。 相似文献
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为进一步强化矿山资源储量年报在矿产资源管理中的地位,督促矿山企业做好矿山资源储量年报工作,为矿山资源储量登记统计、矿产资源补偿费征收和矿业权评估等提供基础依据,滕州市国土资源局组织境内26家矿山企业编制完成了2011年度储量年报。为提高年报编制的效率和质量,要求所有矿山企业都要聘请具有固体矿产资源勘查资质的单位编制该矿山储量年报。凡是不进行编制或不按照要求编制储量年报的,年检不予通过,不再出具矿山保有资源储量证明和办理延续、变更等登记。 相似文献
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矿产资源储量管理是地矿主管部门的重要职能,也是维护矿产资源国家所有权的一项重要职责。论述了全面履行这一管理职责的几点要求;坚持矿产储量审批与登记统计制度,严格依法行政;加强业务学习,提高管理水平;树立信心,努力完成矿产资源储量统计与套改任务。 相似文献
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矿产资源储量报告的编制、评审备案和汇交管理是一项技术性、政策性很强的工作,也是矿产资源管理的基础性工作。通过对山东省当前矿产资源储量报告编制及汇交的现状和存在的主要问题进行梳理和分析,有针对性地提出了合理化改进建议;对提高目前地质成果质量,强化矿政管理做作出了有益的研讨。 相似文献
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矿产资源储是管理是矿政管理的四大职能之一,10年来,积极推进该项管理职能到位,在我省确立了矿产资源统一规划,矿产储量统一审批与统一登记统计和地质资料统一汇交的“四统一”的法律制度。 相似文献
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计算机辅助矿产资源储量动态估算与管理模型 总被引:1,自引:0,他引:1
针对我国矿产资源储量监管水平落后,矿山资源储量动态估算、管理及图件编制信息化程度低的现状,以矿山日常勘探与开发工作流程为主线,以地矿点源数据库为基础,研究了一种新的可对不断勘探与开采的矿山提供有效支持的计算机辅助矿产资源储量动态估算与管理模型。该模型可实现复杂多金属矿山资源储量二维及三维空间一体化与可视化动态估算,创新性地解决了复杂多金属矿山勘探与开发所面临的资源储量动态核减与管理问题。以基于该模型实现的矿产资源勘查与开发软件--QuantyMine传统方法矿产资源储量动态估算子系统为工具,以福建紫金矿业集团所属的多个矿山为实际应用对象进行模型检验。经与核实报告对比分析,所选取的某典型多金属矿床矿石量、金属量动态估算结果与报告结果相差分别为-1.78%~2.86%和-5.05%~4.45%,资源储量各类别结果接近。 相似文献
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滑坡空间预测数学模型的对比及其应用 总被引:1,自引:1,他引:1
滑坡灾害空间预测经历了从定性-半定量-定量、从确定性-非确定性-概率论的发展过程,其中预测模型的建立、预测方法的选取是滑坡空间预测的核心过程,关系到预测结果的最终确定.讨论了信息量模型、信息-物元模型、信息-神经网络模型的预测流程和关键技术问题,将这3种非确定性数学模型运用于万州安乐寺古滑坡区的滑坡危险性预测中,并对3种模型的预测结果进行了对比分析,指出3种预测数学模型的优劣及其应用中需注意的问题,对比研究表明3种模型均不失为滑坡空间预测中较为有效的数学模型. 相似文献
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Wang Xueping Wei Min Faculty of Earth Resources China University of Geosciences Wuhan Yang Lipei Zhao Jingman China Mineral Information Research Institute Beijing 《中国地质大学学报(英文版)》2000,11(1)
INTRODUCTIONSystematic exploration theory is an important aspect ofquantitative prediction and exploration assessment of m ineralresources.Recently,the three- stage quantitative evaluation ofmineral resources (China Mineral Information ResearchInstitute,1996 ;Zhao,1995 ) is widely carried out in the West.The three- stage prediction and evaluation includes:1findingpracticable prospect area on the basis of analyzing m etallogenicgeological setting,2 establishing grade- tonnage model oftar… 相似文献
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扼要介绍了线性定解问题的叠加原理。进而讨论了叠加原理在地下水流模型中的应用问题——地下水流模型的分解与叠加。在新增激发条件下,为便于问题的分析及模型的求解,可将模型分解为初始流场模型与附加水头场模型。模型分解与叠加不仅可简化复杂模型的求解问题,更有助于对水文地质过程的理解。利用附加水头场反求参数以及解决当初始水位非水平、非稳定时,Dupuit公式、Theim公式和Theis公式的应用问题,将显得十分便利。 相似文献
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土的量化记忆模型及其参数确定 总被引:1,自引:1,他引:0
土的真非线性分析要求追踪应力-应变历史,寻求滞回圈上应力-应变的瞬时切线模量。由于地震荷载的随机性,实际土体的应力-应变历史轨迹非常复杂。基于传统模型的骨架曲线和滞回圈表达式进行这类分析的难度很大。作者介绍的量化记忆模型是为土的动力真非线性分析提出的,它是将单调加载情况下呈非线性变化的切线模量量化,记忆为一种分段线性分布的几何结构,并通过对这种结构加以变换,以描述循环加载情况下具有滞回特性土料的动应力-应变关系。在试验的基础上,运用非线性最小二乘法,确定了量化记忆模型中的 , , , , , 6个参数,并将量化记忆模型生成的应力-应变关系曲线与试验曲线进行了比较。结果表明,量化记忆模型是有效可行的。 相似文献
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数据驱动模型在渭河流域来水预报中的开发和应用研究 总被引:2,自引:0,他引:2
现有的水文预报方法分为过程驱动模型方法和数据驱动模型方法两大类,近年来随着水文数据获取能力和计算能力的发展,数据驱动模型在水文预报中受到了广泛的关注,回归模型、神经网络模型均属此类.本文首先采用距离平方反比与泰森多边形相结合的方法,由雨量站观测到的降水量求得渭河流域各四级区的降水量,然后采用自回归模型结合年~月~旬逐级修正的方法对渭河流域10个四级区进行降水预报,采用降水~气温~径流多元线性回归模型对渭河流域28个水库进行径流预报,取得了较好的效果. 相似文献
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Sedimentary deposits are often characterized by various distinct facies, with facies structure relating to the depositional
and post-depositional environments. Permeability (k) varies within each facies, and mean values in one facies may be several
orders of magnitude larger or smaller than those in another facies. Empirical probability density functions (PDFs) of log(k)
increments from multi-facies structures often exhibit properties well modeled by the Levy PDF, which appears unrealistic physically.
It is probable that the statistical properties of log(k) variations within a facies are very different from those between
facies. Thus, it may not make sense to perform a single statistical analysis on permeability values taken from a mix of distinct
facies. As an alternative, we employed an indicator simulation approach to generate large-scale facies distributions, and
a mono-fractal model, fractional Brownian motion (fBm), to generate the log(k) increments within facies. Analyses show that
the simulated log(k) distributions for the entire multi-facies domain produce apparent non-Gaussian log(k) increment distributions
similar to those observed in field measurements. An important implication is that Levy-like behavior is not real in a statistical
sense and that rigorous statistical measures of the log(k) increments will have to be extracted from within each individual
facies.
Electronic Publication 相似文献
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The large-scale tectonics in the last billion years (Ga) are predominated by the assembly and breakup of supercontinents Rodinia and Pangea. The mechanisms controlling the assembly of supercontinents are not clear. Here, we investigate the assembly of a supercontinent with 1) stochastic models of randomly-moving continental blocks and 2) 3-D spherical models of mantle convection with continental blocks. For the stochastic models, we determined the time required for all the blocks to assemble into a single supercontinent on a spherical surface. We found that the assembly time from our stochastic models is significantly longer than inferred for Pangea and Rodinia. However, our study also suggests that the assembly time from stochastic models is sensitive to the rules for randomly assigning continental motion in the models. In our dynamic models of mantle convection, continental blocks are modeled as deformable and compositionally distinct materials from the mantle. We found that mantle convective planform has significant effects on supercontinent assembly. For models with moderately strong lithosphere and the lower mantle relative to the upper mantle that lead to degree-1 mantle convection, continental blocks always assemble to a supercontinent in 250 million years (Ma) and this assembly time is consistent with inferred for Pangea and Rodinia. However, for models with intrinsically small-scale mantle flows, we found that even when continental blocks merge to form a supercontinent, the assembly times are too long and the convective structures outside of supercontinent regions are of too small wavelengths, compared with observed. 相似文献