秦山核电站海堤沉陷灰色模型预测

本文利用灰色系统理论,处理了从１９８７年４月至１９９７年１１月的秦山核电站海堤沉降变形监测资料,据此进行了预测,取得了较好的效果。由此表明,灰色系统理论应用于工程预测和大型建筑物的变形监测中,建模方便、结果精度高。     

扬州港客运大楼地基加固与边坡围护

位于长江下游北岸某凹岸区的扬州港,因受局部塌岸的危害,多处建构物被毁,新落成的客运大楼产生不均匀沉降与裂缝,直接危及大楼的安全与使用,迫使该港长航客运中断。后在大楼西南侧岸边构筑了一道防护帷幕墙,并对大楼地基土进行了压密注浆加固,保住了大楼,控制了沉降,并使大楼处于稳定状态,恢复了长航客运。简述了该建筑物病害的成因,治理加固方案的设计与施工,效果验证等问题。     

The Effects of Informal Settlement on Suburban Property Values in Cape Town,South Africa

During the late 1980s some informal settlements were established within or near affluent Cape Town suburbs. Despite objections by suburban residents that these settlements would lead to a rapid escalation in crime and a dramatic fall in the value of properties, the authorities allowed the settlements to remain. Using data on property transfers, which are then mapped using GIS, the paper examines the effects that the informal settlement of Marconi Beam had on house prices and housing turnover within the adjacent suburb of Milnerton. The results show that most of the objections regarding Marconi Beam's effect on property values were groundless as the settlement had only a negligible effect on property values in the adjacent suburb.     

渝东平行岭谷区土壤的蠕移灾害及防治措施

渝东平行岭谷区土壤的蠕移,主要发生在侏罗系中自统自流井组（Ｊ１－２ｚ）地层中,在水体和重力作用下,风化岩层和上覆土层沿斜坡缓慢向下蠕移,对农地,民房及水利设备等产生严重破坏。分析测定表明研究区的粘性岩土被为低膨胀性粘性土,粘接矿物以高岭石为主,蒙脱石为次,化学成分以ＳｉＯ２胶粒含量最高,最后提出建筑物的地基处理和湿度指标控制,农田基本建设采用区域环境绿化增强土壤排水能力等方面的防治措施。     

桩式复合地基承载特性的研究

以桩式复合地基为对象,将复合地基视为由垫层、桩和桩间土所组成的一个工作体系,考虑其各部分的工作特性及其相互影响,分析研究了复合地基的受荷机理,影响桩土应力比和复合地基承载力的诸多因素等。     

An experimental study of the parameters influencing ultimate bearing strength of weak floor strata using physical modeling

The evaluation of the bearing strength characteristics of floor strata during an excavation process while under heavy loads from an overlying rock mass is one of the important factors in strata control of any underground mine. Plate loading tests on simulated floor strata were carried out for varying geotechnical conditions of weak floor strata. The physico-mechanical properties of weak floor strata evaluated in the experiments include unconfined compressive strength (c), elastic modulus (E), Poissons ratio () angle of friction (), and the moisture content (MC). The paper summarizes the results of (1) bearing strength tests using different sizes of circular loading plate (2) influence of various physico-mechanical parameters of weak floor strata on its floor bearing strength and (3) bearing strength analysis of weak floor in jointed rock mass. The outcome of the results show that the ultimate bearing strength decreases considerably with increase of footing plate size. The experimental results strongly support the earlier field investigation findings depicted by Zhanjing et al. (1992). Thus the contradictions about the plate size effect on bearing strength (Katsutoshi et al., 1998) are further eliminated. It was further investigated that apart from the plate size, ultimate bearing strength is strongly correlated with uniaxial compressive strength. A better correlation between moisture content and ultimate bearing strength with a regression coef.cient of 0.91 was also achieved. An excellent correlation between angle of friction () and ultimate bearing strength was found.     

BOOK REVIEWS

Book Reviewed in this article: Geography and the Third World. International Seminar, 14–18 May 1980, Kuala Lumpur, Malaysia . Ishmail Ahmad and Jamaluddin Md Jahi, eds. The Growth Dilemma: Residents' Views and Local Population Change in the United States . Mark Baldassare. Sport and Place: A Geography of Sport in England, Scotland & Wales . John Bale. The Deindustrialization of America: Plant Closings, Community Abandonment, and the Dismantling of Basic Industry . Barry Bluestone and Bennett Harrison. Selected Essays 1963–1975: Carl O. Sauer . Bob Callahen, ed. Housing and Planning in the Countryside . G. Clark. Conflict, Politics and the Urban Scene . Kevin R. Cox and R. J. Johnston, eds. Thematic Maps: Their Design and Production . David J. Cuff and Mark T. Mattson. Wine: A Geographic Appreciation . Harm Jan de Blij. USSR in Maps . J. C. Dewdney. Political Geography: A Contemporary Perspective . Ramesh D. Dikshit. Rethinking Human Adaptation . Rada Dyson-Hudson and Michael A. Little, eds. Sacred Sands: The Struggle for Community in the indiana Dunes . J. Ronald Engel. Geography of the Biosphere . A. Furley and Walter W. Newey. Disaster and Reconstruction . Robert Geipel. Glasgow: The Making of a City . Andrew Gibb. Design for Arid Regions . Giden S. Golany, ed. Urbanization and Cancer Mortality: The United States Experience, 1950–1975 . Michael R. Greenberg. Geology in the Nineteenth Century: Changing Views of a Changing World . Mott T. Greene. Colonización y Destrucción de Bosques en Panamá . Stanley Heckadon Moreno and Alberto McKay, eds. Urban Geography: A First Approach . David T. Herbert and Colin J. Thomas. The Visual and Spatial Structure of Landscapes . Tadahiko Higuchi. Climate from Tree Rings . M. K. Hughes, P. M. Kelly, J. R. Pilcher, and V. C. LaMarche, Jr., eds. The structure of Nineteenth Century Cities . James H. Johnson and Colin G. Pooley, eds. The American Planner: Biographies and Recollections . Donald A. Krueckeberg, ed. Urban Land Policy For the 1980s, the Message for State and Local Government . George Lefcoe, ed. Regional Planning: Evolution, Crisis and Prospects . Gill C. Lim, ed. Relevance and Ethics In Geography . Bruce Mitchell and Dianne Draper. China: The Geography of Development and Modernization . Clifton W. Pannell and Laurence J. C. MA. The Urban Retailing System . Robert B. Potter. Hants. Nonconventional Energy Resources . Philip R. Pryde. Caribbean Migrants: Environment and Human Survival on St. Kitts and Nevis . Bonham C. Richardson. Population and Resources . Harry Robinson. East Los Angeles: History of A Barrio . Ricardo Romo. Integrated Impact Assessment . Frederick A. Rossini and Alan L. Porter, eds. Environmental Aesthetics: Essays in Interpretation . Barry Sadler and Allen Carlson, eds. Earthwatch . Charles Sheffield. Field Techniques and Research Methods in Geography . Robert H. Stoddard. Haiti: Land of Poverty . Robert J. Tata. Weathering and Erosion: Sources and Methods in Geography . Stephen T. Trudgill. Once Beneath the Forest. Prehistoric Terracing in the Río Bec Region of the Maya Lowlands . B. L. Turner, II. The Historical Geography of Scotland since 1707 . David Turnock.     

利用Delphi 6实现单桩最终沉降量计算程序的跨平台开发

本文对Delphi6及其内部的VCL和CLX两个组件类库作了简要的论述,分析了这两个组件库的各自特点及相互之间的区别,对比了开发环境(Windows与Linux)的不同。根据CLX库完全支持跨平台的特性,说明了利用Delphi6实现应用程序的跨平台开发的具体方法和步骤,并提出了利用Delphi6进行跨平台开发的几点注意事项。最后,给出实现单桩承载力计算程序跨平台开发的关键源代码。     

长江口动水絮凝沉降与拦门沙淤积的关系

根据１９８２年４月－１９８３年３月长江口南槽３个站位全年逐月大湖的水化学成分、悬沙粒度与粘土矿物资料，１９８４－１９９２年在环形水槽中获得的近百个组次的动水絮凝沉降试验研究资料，以及长江口细颗粒泥沙、浮泥与底质研究成果，对拦门沙形成过程及其机理进行综合研究。     

Temporal variability of disturbances: is this important for diversity and structure of marine fouling assemblages?

Natural communities are constantly changing due to a variety of interacting external processes and the temporal occurrence and intensity of these processes can have important implications for the diversity and structure of marine sessile assemblages. In this study, we investigated the effects of temporal variation in a disturbance regime, as well as the specific timing of events within different regimes, on the composition and diversity of marine subtidal fouling assemblages. We did this in a multi‐factorial experiment using artificial settlement tiles deployed at two sites on the North East coast of England. We found that although there were significant effects of disturbances on the composition of assemblages, there were no effects of either the variation in the disturbance regime or the specific timing of events on the diversity or assemblage composition at either site. In contrast to recent implications we conclude that in marine fouling assemblages, the variability in disturbance regimes (as a driving force) is unimportant, while disturbance itself is an important force for structuring robust ecosystems.