组合桩型复合地基计算与应用分析

为完善组合桩型复合地基设计理论，以单一桩型复合地基计算方法为基础，给出了其承载力和沉降量计算方法，提出了静载试验结果的尺寸修正方法，并与测试结果进行了验证。结果表明：经修正后，承压板下组合桩型复合地基承载力试验值与采用本文公式所得计算值吻合；采用桩间土的压缩模量乘以承载力的提高幅值，所得复合压缩模量计算组合桩型复合地基，最终沉降满足工程要求。     

沸石在水环境治理中的应用现状与前景

文章叙述了沸石的基本结构以及吸附、离子交换特性，总结了近年来国内外有关沸石在水环境保护方面的研究与应用成果，提出了沸石在今后的水环境保护和改善方面将具有广泛的应用前景。     

MapInfo在矿山生产勘探管理中应用的探讨

根据MapInfo在其它领域应用的原理，利用其包含图形信息对象的数据表是图形和数据之间有机结合的概念，从矿山生产勘探的管理特点出发，论述MapInfo在矿山生产勘探过程中对勘探资料图和储量计算表的对应管理，探讨了矿山生产勘探的管理过程数字化的一种新方法。     

地理信息技术的发展与应用

地理信息系统是国家信息资源的重要组成部分。地理信息技术经过20多年的飞速发展，已经渗透到社会各个方面，促使人们生产、生活方式发生深刻变化。我国地理信息系统(GIS)技术正在向信息化方向发展，并正在逐步成为面向21世纪的支柱产业一信息产业的重要组成部分。国际GIS技术的发展趋势，主要体现在两个方面，一是综合，二是分化。从空间信息处理的角度看，可将GIS的发展分为空间信息的管理、分析、模拟和调控四个阶段。GIS技术的应用表现在一是面向大型项目，二是面向公众。     

Evaluating accuracy for two empirical methods in predicting settlement of drilled shafts

Several theoretical, empirical and semi-empirical methods are available in the literature to predict settlement of drilled shafts in sandy soils. In the Arabian Gulf countries, specifically in the United Arab Emirates, equations and procedure from the rest of the world are being used in analysis and design of drilled shafts without proper validation. It is the aim of this study to assess the applicability and evaluate the accuracy of two well known, and commonly used methods for pile prediction in the United Arab Emirates (UAE), namely Vesic (1977) and Poulos (1979), via comparison with data from field pile load tests conducted on shafts drilled in the region. Some of these tests were conducted for the purpose of this study, while others were made available through the courtesy of International Piling Contractors who are active in the region (e.g. Bauer International and Swiss Borings). Pile load test data were analyzed to back-calculate the model parameters related to settlement under different loading stages. Geological data and soil properties were obtained from studies conducted at the relevant sites. An effort is made to correlate soil properties with the prediction models. Statistical analysis is conducted to assess the accuracy of the results obtained from the two methods at different stages of loading via those obtained from pile load tests. Moreover, a detailed parametric study is conducted to assess the effect of the related parameters on the predicted pile settlement and the estimated settlement at different stages of loading. The study concluded with a recommendation of the most appropriate models and procedures to be followed for predicting the settlement of drilled shafts in the UAE, together with useful charts and correlation relations. Results showed that settlement values predicted by Vesic (1977) and Poulos (1979) overestimates the true values. This revised version was published online in July 2006 with corrections to the Cover Date.     

楼层上钻孔灌注桩施工方案可行性分析

文华大厦因设计变更，需在已施工的楼层上施工钻孔灌注桩，通过对主要受力部分AB梁进行力学分析，以及对其进行加固，解决了楼层上钻孔灌注桩施工难题。     

电子地图商务网站应用探析

从WebGIS的产生背景和特点入手,阐述了WebGIS的应用现状,分析了WebGIS的重要应用之一--电子地图商务网站,剖析了其服务对象、系统需求、市场预测及策略等.     

基于J2EE的移动定位服务研究

阐述了基于J2EE的移动定位服务 (MLS)的体系结构 ,介绍了适于MLS的GIS应用服务器和信息设备地图可视化表达的关键技术 ,给出了GeoSurf的WAP和J2ME的两种解决方案 ,并阐述了其应用前景     

西风带研究动态

本文较为详细地介绍了影响我国气候的重要因子——西风带的一些国内外最新研究动态,这些研究动态和研究成果将对山西省的气候研究起到积极作用。     

汾河水库流域人工增雨可行性研究

本文通过对汾河流域40a气象、水文资料的分析,结合现阶段人工增雨技术的研究,以增加水库蓄水量为目的,设计科学可行的人工增雨方案,并对可能的投入和预期产生的效益进行分析研究,为通过人工增雨增加水库蓄水量提供科学依据。