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医院是一种专业技术含量大,技能复杂的建筑类型,做好医院设计的关键是以发展的眼光把握总体规划、单体建筑的功能设计有机、合理、医院环境设计满足心理、生理需求,提高医院管理水平,加强设计人员专业化程度。 相似文献
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随着越来越多被废弃的城市滨水地区的恢复和再生,建筑师、规划师和工程师均面临着最基本的挑战:如何使这些曾被污染的土地具有新的用途,既能服务广大的城市居民,又能把城市纳入一个绿色的生态系统中. 相似文献
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《Soils and Foundations》2022,62(1):101096
The Mietsu Naval Facility was established as a Western-style military facility by the Saga Clan in 1858. A geotechnical investigation of the Mietsu Naval Dock (MND) at the Mietsu Naval Facility World Heritage Site was performed using portable cone penetration tests, unconfined compression tests with suction measurement, and standard oedometer tests. The pile length of the wooden frame structure was determined using pulse waves. The slope of the western wall consists of four layers, and straw soil bags were arranged for slope stabilization. The slope of the western wall during construction and under use was analyzed based on total and effective stresses, respectively, and was found to be stable. The wooden structure of the eastern wall consists of four stages and has a complex structure of pine wood with intact bark. The second and third-stage piles have anchorage structures with several horizontal elements linked to the first and second-stage piles. The number of the piles in the third-stage indicates that it plays a central structural role. Even though ship were repaired at the bottom of the dock, there is no evidence of ground improvement to prevent damage from ship loads. Because the amount of decrease in effective overburden pressure corresponded to the amount of excavated soil with the load of the Denryu-maru, which was repaired in this dry dock, it is possible that ground improvement for entry and repair of the ship was not needed. The results of this study are useful for the maintenance, management, and restoration of the MND remains. 相似文献
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《Planning》2015,(45)
<正>In 1775,when the American War of Independence began,George Washington was chosen to lead the American army.Washington knew his job would be difficult.The army was small.The soldiers were untrained and had few guns.The British army was large and strong.Its soldiers were very well trained.1775年,美国独立战争刚刚开始,乔治·华盛顿被当选为美国军队的领袖。华盛顿知道任务相当艰巨。军队规模小,士兵未接受专门训练,枪支稀少。英国军队规模庞大,实力强大,还拥有训练有素的士兵。 相似文献
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This paper traces the maturation of Bellevue's urban pattern with particular attention to open spaces and stormwater drainage. Several significant events set the current course and led to a new interpretation of the city—country continuum. The seemingly conventional suburban values of this community led the citizens to oppose dispersed commercial development and re-focus the community's development energies on the downtown. More recently, re-zoning of the downtown area, development incentives and design guidelines have been leading to a re-invention of downtown following urban village models. The community resisted burdening itself with the exorbitant costs of engineered drainage systems and gambled on a surface drainage system. In 1974 Bellevue adopted a surface drainage system originally out of financial imperative, placing it at the forefront of innovative stormwater management. Working cooperatively, stormwater engineers and parks planners are weaving a complex web of public open space that integrates the utilitarian public corridors of the city with older patches of park land. The maturing of Bellevue represents a new constellation of values and evolving settlement patterns for the old suburbs. 相似文献
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Dilution water, low in macronutrients, was added to Moses Lake on three occasions in 1977 and once in 1978 during the spring-summer period. The addition resulted in reducing the annual average inflow concentration of phosphorus from about 130–140 μg l−1 to 100 μg l−1. The water exchange rate in Parker Horn, which is 8% of the lake volume, increased from about 1% day−1 normally to 7 and 11% day−1 for the May–September period in 1977 and 1978, respectively. Lake water was displaced at a predictable rate in the whole lake as well as the areas proximal to the input, as verified by specific conductance.Improvements in lake quality, compared to values from 1969–70, were rather good with greater reductions in algal biomass occurring than might have been expected to result from the less impressive reductions in total P content. Chlorophyll a decreased by about 60–80% and total P decreased by about 50–60%, depending on the area of the lake. However, Chl a averaged only 15 μg l−1 during May–September 1978, while total P was rather high at 70–80 μg l−1. The fraction of the phytoplankton composed by blue-green algae decreased from 96% in 1970 to 68% in 1977–78. The cause for the effect on biomass and species composition is unknown, but may be related to dilution of blue-green excretory products.A dilution water input of about 6 m3 s−1 continuously during April–September would require 20% less total water and should provide adequate control of eutrophication in at least 30% of the lake volume proximal to the input and Parker Horn. That would provide an exchange rate of 5% day−1 for Parker Horn and should achieve lake water residuals by midsummer of 50%. Two additional inputs to the lake are also proposed as two more phases in the restoration project. 相似文献
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The inputs of iron, lead, chromium and zinc to a 0.6 acre road surface were investigated. The selection of a viaduct in Pullman, Washington as a study area permitted the exclusion of metal input from non-road surfaces. Dust and precipitation metal deposition rates were measured at the viaduct as well as at a control location. It was found that the primary source of metals at the road surface was the operation of motor vehicles. For three separate storm events, runoff samples were collected, flow was measured and runoff samples were analyzed for total solids, total metals and dissolved-colloidal metals. Less than 5 percent of each metal in the runoff samples existed in the dissolved-colloidal fraction. Mean concentrations of total metals in road runoff were 1.86, 89, 0.139 and 19.1 mg/l for Pb, Fe, Cr, and Zn, respectively. A mathematical model was developed allowing the estimation of metal loadings for a storm event typical of the area, given the total runoff volume for the particular storm event. It was also found that a residual amount of metals remains on the road surface after each storm. 相似文献