四川省地源热泵监测系统初探

介绍了四川省的地源热泵系统工程开展,提出了地源热泵监测系统的必要性以及简要的监测方式,为以后地源热泵的推广应用和保护地下资源环境提供数据支持。     

西龙河水源地水文地质特征初步研究

为了合理利用岩溶水,根据物探及水源井资料,对西龙河水源地岩溶水水文地质特征进行了初步研究。结果表明：西龙河水源地奥陶系碳酸盐岩岩溶发育程度主要受岩性、构造及埋藏条件等因素的控制,随方解石含量的增高而增强,随水动力条件的减弱而减弱,随深度的增加而减弱;主要接受大气降水以及区外岩溶地下水的侧向径流补给,向人工开采区排泄;岩溶水水位动态变化具明显的平盘上升、平盘下降和缓降陡升的特点,岩溶含水层具较强的导水性能和恢复功能;岩溶水水质良好。     

Simplification of a Sequential Extraction Scheme To Determine the Mobilisable Heavy Metal Pool in Soils

This investigation had the purpose of evaluating the reliability of a sequential extraction procedure according to Zeien and Brümmer (1989) which is performed routinely to analyse the distribution of heavy metals to different soil phases. Reliability was tested by two hypotheses. According to the first hypothesis an error propagation increased during a morefold extraction of heavy metals from a single soil sample to such an extend that it does not allow a statistical comparison of different analyses. This assumption was confirmed in an interlaboratory study of five participants applying the sequential extraction scheme on two different soils. The heavy metal amounts extracted by the different partners were of the same magnitude, but from the results no statistical correspondence at the 95% confidence level could be observed. The second hypothesis stated that also weak extraction agents were able to release metals from the more immobile soil fractions, especially if the amount of easily soluble metals was comparatively small. To answer this question the sequential extraction was modified by carrying out selected weak extraction steps several times. As expected the intensified extraction conditions caused a decrease of the element content within the more resistant phases. However, the additional release in the first four extraction steps of Pb, Mn, Fe, and Zn was only in the range of 5 to 10%. Furthermore, it was observed that a single EDTA extraction (step four within the sequential extraction scheme) was capable to extract the same amount of metals as the first four extraction steps of the original scheme at a variation of about 15%. From these results it was concluded that the EDTA step alone already represents a reliable pool of mobilisable metals. Thus it can be maintained that such a simple single EDTA extraction can be used to assess the environmental risk from heavy metal contaminated soils or to predict the potential heavy metal release of soil remediation processes.     

金川矿区深部高应力矿床开采关键技术研究与发展

金川矿区是我国唯一一座大型有色矿产资源生产基地。该矿体埋藏深、地应力高和围岩破碎所固有的不利条件,使得矿床在开采过程中面临极大困难。随着开采的延深,开采面积扩大,采场地压显现日趋剧烈,揭示和研究深埋、大面积采场的地压显现规律以及控制技术,是该类难采矿床安全、高效开采的关键。金川矿区自建矿30多年来,开展了大量的地压规律与控制技术的研究,积累了丰富的工程经验,解决了生产中的难题,使得矿山一期工程得以顺利实施。然而,随着二期工程的进展,尤其多中段开采水平矿柱日趋变薄的开采条件下,采场地压活动极为剧烈,巷道变形难以控制,并潜在着采场突变失稳的风险。本文在总结国内外难采矿床采场地压规律和控制技术研究的基础上,深入论述了金川1#矿体开采存在的问题、潜在的风险以及需要解决的关键技术难题。并明确了数值分析、现场监测与工程经验集于一体的动态反馈系统工程方法,是解决复杂采矿工程的必由之路。     

省以下气象业务体制、预报流程建立及预报指导技术的研究

我省气象业务体系在9210工程之后,已显示出预报体制和流程不适应新的设备与技术环境的问题,影响了天气预报业务技术的发展,制约了天气在空间,时间分辨率方面的提高,因此,如何在卫星广域网高速舆网络环境下,建立一套新的预报业和作用流程以及省,地,县三级预报技术,是非常重要的。     

盱眙象山国家矿山公园建设可行性研究

根据盱眙县象山矿区矿山开采状况以及矿业遗迹状况,分析和阐述建立了矿山公园的目的和意义,进一步研究建立象山国家矿山公园的可行性和重要性。     

春季IOD影响东亚季风机制的数值研究

基于美国国家大气中心的CAM3.0模式,设计3组数值试验,以研究春季印度洋偶极子(IOD)海表温度异常对东亚夏季风的影响及其可能机制。结果表明:在IOD正位相年,对印度洋关键海区的春季海表温度加入强迫后,同期夏季(6—8月)的东亚夏季风明显偏弱:副热带高压位置偏南,长江流域上升运动加强、降水偏多,南海地区下沉运动加强、降水偏少、南海季风偏弱。还从经向、纬向垂直环流圈角度分析了IOD对东亚夏季风的可能影响机制:IOD正位相年,在IOD正SSTA区域(热带西印度洋)的东侧大约75 °E附近能激发出上升运动,而在IOD负SSTA区域(热带东印度洋)的东侧大约110 °E附近出现下沉运动,从而构成一个完整的纬向垂直环流圈;110 °E附近的下沉运动又可能通过经向垂直环流圈影响南海和东亚副热带地区,造成东亚经度上赤道地区为上升运动、南海地区为下沉运动、长江流域为上升运动的异常经圈环流,从而使得东亚夏季风(包括南海季风和东亚副热带季风)整体偏弱。      

核慢相互作用与地球发电机理论

Important role of the Geodynamo theory playing in the Study on the Earth's Deep Interior in discussed briefly. The study of geomanetic field and its temporal-spatial change is one of the main tools obtaining knowlege about the Earth's deep interior especialy the coer一mantle interabtion. It is the key to advancing the Geodynamo theory to bring to light implication of core-mantle, particularly thermal and chamical , interaction on the model of Geodynamo.     

粗糙度研究的现状及展望

略述边界层剪切湍流各区域速度廓线规律和地面粗糙分类后,对各种地面粗糙度(包括沙质粗糙度、动力粗糙度、植被粗糙度、复杂地面粗糙度、有效粗糙度)的研究现状和计算方法作了简要综述,认为动力粗糙度算式中系数A和植被或有效粗糙度算式中位移高度d将会是进一步研究的重点。