人工增雨的社会效应和应采取的对策与措施

在分析 2000年人工增雨作业实践和所产生的社会、经济效益的基础上，提出我省人工影响天气减灾对策和应采取的服务措施，使人工影响天气科学能为城乡减灾作出更多的贡献。     

Study on Smooth Blasting Results in Jointed and Fractured Rock

ＩＮＴＲＯＤＵＣＴＩＯＮＩｎｊｏｉｎｔｅｄａｎｄｆｒａｃｔｕｒｅｄｒｏｃｋｍａｓｓｅｓ ,ｉｔｉｓｏｆｔｅｎｄｉｆｆｉｃｕｌｔｔｏａｃｈｉｅｖｅａｓｍｏｏｔｈｆｒａｃｔｕｒｅｐｌａｎｅｂｅｔｗｅｅｎｂｌａｓｔｅｄｈｏｌｅｓ.ＭｃＫｏｗｎ(1984)ｉｎｄｉｃａｔｅｄｔｈａｔｗｈｅｎｔｈｅａｎｇｌｅｂｅｔｗｅｅｎｒｏｃｋｓｔｒｕｃｔｕｒａｌｐｌａｎｅｓａｎｄｔｈｅｂｌａｓｔ ｉｎｄｕｃｅｄｐｌａｎｅｉｓｌｅｓｓｔｈａｎ 6 0°,ｉｔｉｓｄｉｆｆｉｃｕｌｔｔｏａｃｈｉｅｖｅａｓｍｏｏｔｈ ｂｌａｓｔｉｎｇｓｕｒｆ…     

1975—1986年古田水库人工降雨效果总分析

本文对福建省古田水库地区1975—1986年人工降雨试验效果进行总评价.12年共进行244次随机试验,三种不同的统计分析方法(区域回归分析法、双比分析法和多元回归分析法)均表示122次催化平均相对增雨在20％左右,显著度高于5％水平.此外,按云型、天气条件、雷达回波顶温度分类统计,为选择有利作业条件提供科学依据.云和降水物理观测(冰核、雨水中银离子含量、雷达回波和雨滴谱)及数值模拟的工作,其结果为人工增雨统计结论提供某些初步物理学解释.     

应用测井资料自动确定沉积相的计算机程序

在没有取芯的情况下,设计了应用测井资料自动确定沉积相的计算机程序。该程序在测井岩性分析的基础上应用人工智能技术,对岩性剖面进行合理的岩性组合序列的自动划分,再将这种划分结果与已建立起来的沉积相模式进行统计比较,确定其所属的相类型,绘出一个完整而连续的相序剖面。文中以渤海辽东湾绥中36-1构造SZ36-1-5井为例,说明这一程序在应用测井资料自动确定沉积相方面具有较高的精度。     

Impact of stormwater infiltration basins on groundwater quality, Perth metropolitan region, Western Australia

Twelve bores were sunk adjacent to three stormwater infiltration basins in the Perth metropolitan area to examine the impact of runoff from a light industrial area, a medium-density residential area, and a major arterial road on groundwater quality, and to examine the hydrological response of the aquifer to runoff recharge. Automatic and manual water level monitoring between April and November 1990 indicated that groundwater levels responded within minutes to recharge from the infiltration basins. Peak water levels of up to 2.5 m above rest levels occurred 6–24 h after the commencement of ponding in the infiltration basins. There was a marked reduction in salinity and increase in dissolved oxygen concentrations in the upper part of the aquifer downgradient of the infiltration basins. Concentrations of toxic metals, nutrients, pesticides, and phenolic compounds in groundwater near the infiltration basins were low and generally well within Australian drinking water guidelines. However, sediment in the base of an infiltration basin draining a major road contained in excess of 3500 ppm of lead. Phthalates, which are US EPA priority pollutants, were detected in all but one bore near the infiltration basins. Their detection may be a sampling artifact, but they may also be derived from the plastic litter that accumulates in the infiltration basins. The concentration of iron in groundwater near the infiltration basins appears to be controlled by dissolved oxygen concentrations, with high iron concentrations occurring where dissolved oxygen concentrations are low. Pumping bores located near infiltration basins may suffer from iron encrustation problems caused by the mixing of shallow, oxygenated groundwater with water containing higher concentrations of iron from deeper in the aquifer.     

Some Considerations on Earthquake Prediction Decision Process

A theory on information prediction process proposed by Weng Wenpo(1991)is applied to the earthquake prediction decision process.Four cycles represent the theory(conception),earthquake prediction decision result,anomalies,and earthquake assemblage,respectively.The interception and overlapping of the four cycles indicate different combinations,resulting in formation of 13 regions.In the case of decision conclusion on earthquake to occur,seven decision results of different characters are distinguished.The six other results were obtained in the case of absence of decision.Results of four characters show correct decision on earthquake to occur and those of three characters show the erroneous decision on earthquake to occur.Until now,theories of earthquake prediction have been incomplete,and the coincidence ratio of decision on earthquake to occur is also considerably low.Systematic analysis of the decision process is beneficial to understanding the causes for missing,virtual,pseudo,false,and correct earthqua     

地震危险性评定专家系统在沈阳市地震小区划中的应用

应用地震危险性评定专家系统，根据区域地球物理、地质等方面资料，进行了潜在震源区划分、地震活动性参数的确定、地震危险性分析等方面的工作，其结果与传统方法的结果具有很好的一致性。     

断裂控制爆破─—工程爆破技术的新发展

介绍了断裂控制爆破技术的发展概况、基本方法、工程应用实例和效益。     

论岩体爆破地质力学及爆破性分级

本文对岩体爆破地质力学问题进行了论证。岩体的爆破性按岩体结构类型、地应力特征和爆破震动的影响可分为五类:1.极难爆(整体状结构);2.难爆(块状结构);3.中等(裂隙块状结构、碎裂结构);4.易爆(层状碎裂结构、软弱层状结构);5.极易爆(松散结构、松软结构)。