Experimental Study on Friction Coefficient Between Concrete and the Top Surface of Rubble Mound Foundation

Experimental studies on the friction coefficient between concrete and the top surface of a rubble mound foundation in China are reviewed. Through comparison of different test results, the development of this research is comprehensively analyzed. An experiment is carried out in the condition similar to prototype. The process curve of friction coefficient with the test block sliding is analyzed and a standard for determination of the friction coetfficient is defined. The variation features of the friction coefficient are analyzed on the basis of the present experimental results and other studies in China. It is shown that the friction coettfficient between concrete and the top surface of a rubble mound foundation decreases with the increase of the foundation pressure, and the friction coettqcient for a very fine leveling bed is smaller than that for a fine leveling bed.     

山东全新世滨海软土与工程地质灾害的研究

山东全新世滨海软土分布在海湾、泻湖、河口区，厚度１－１０ｍ。海湾、泻湖软土为淤泥、淤泥质土，陆源物质供应丰富的浅水区，软土颗粒偏粗，强度相对较高，触变性对建筑物危害性大，陆源物质供应少的深水区，软土颗粒偏细，低强度、高压缩性、沉降变形大和蠕变性是危及建筑物稳定的主要因素。海湾、泻湖软土位于地下水位下，具低透水性，掩埋后短期不易排水固结，软土下为强度较高的冲积物，对一般建筑物，利用强夯、粉喷搅拌桩、     

Experimental Investigation of Instantaneous Properties of Wave Slamming on the Plate

The purpose of this paper is to investigate the instantaneous properties of wave slamming on the plate structure of an open structure.The advanced instantaneous measuring technique-Particle Image Velocimetry(PIV) is applied to acquire the instantaneous velocity field of wave slamming.From the cross-correlation analysis results of the images captured by the CCD camera,the flow fields of wave impacting on the structure are displayed visually,and the instantaneous whole-field fluid velocity vectors are obtained.The relation between the instantaneous peak impacting pressures and the instantaneous velocities of water particles is studied by probability analysis.     

交互式海洋泥沙叶绿素遥感信息系统

探讨了珠江口海域的交互式遥感空间信息在Internet上的实现技术。系统采用分层模型和Web服务技术，初步实现了泥沙叶绿素遥感信息的提取、发布与查询。利用该系统，用户可远端上传实测数据，系统使用适当模型进行后台分析运算，将结果返回用户，实现了系统的远程交互性分析功能。     

青岛市水资源问题及解决的途径

青岛市是我国北方严重缺水城市之一，曾长期遭受水资源紧缺的困扰，１９８９年引黄济青工程竣工后，使城市水的供需矛盾暂时得到缓解，但随着改革开放步伐的加快，城市建设和社会经济迅速发展，对水的需求量越来越大，供需矛盾日益突出，再加上环境的不断恶化和建设资金的匮乏，使水资源问题成为青岛市社会经济发展的重要制约因素。本文针对青岛市水资源的特点，综述其水资源开发利用现状，存在的问题及发展趋势，提出解决这此些问题     

龙口湾的潮汐特征分析

根据龙口港验潮站的长期潮位资料和龙口湾内３个临时测站的短期验潮资料（２个站１个月，１个站ｌａ），对该区的潮汐特征、工程水位及暴潮增水等作了具体分析。     

对港口工程水下粉煤灰填筑技术的探讨

本文论述了在港口工程中大规模的粉煤灰回填的利用,重点是水下部位的目填技术.     

长江口深水航道治理一期工程实施对北槽拦门沙的影响

介绍了长江口拦门沙发育及其特点和北槽航道拦门沙形成机理，利用长江口深水航道治理一期工程实施后的地形资料分析治理工程对北槽航道拦门沙影响。结果表明：治理工程建成后，增加了主槽流速，减少了航道回淤，打通北槽航道拦门沙，增加了航道水深，治理工程效果明显。     

浮标技术的新发展—价值工程浮标

价值工程（ＶＥ）是以最低总成本实现产品必要功能的现代管理方法。将ＶＥ原理应用于海洋资料浮标设计，这是浮标技术发展的必由之路。本文介绍了美国两种ＶＥ浮标的现状，以供借鉴。我国发展ＶＥ浮标的条件已经成熟，但是任重道远。