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将长短桩复合地基应用于小高层住宅中.详细阐述了长短桩复合地基的设计方法,并于实际检测结果加以比较.同时总结了长短桩复合地基在应用中注意点. 相似文献
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正近日,在中国城市科学研究会召开的中国住宅产业化联盟筹备会上,全国政协环资委副主任、住房城乡建设部原副部长仇保兴针对我国住宅产业化发展的现状和未来趋势进行了总结分析。他强调,住宅产业化正面临着一系列发展机遇,相关各方要联合起来,努力实现住宅产业化的跨越式发展。住宅产业化面临四大机遇仇保兴指出,当前,我国住宅产业化迎来了良好的发展机遇,主要体现在以下四个方面:一是劳动力成本提高助推住宅产业化发展。近年来,劳动力成本逐年增高。从2012年起,劳动力供给开 相似文献
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介绍了河北省廊坊市某小高层住宅小区岩土工程勘察的内容、场区工程地质情况,并进行了场地土的液化判别,对建筑地基土层进行了分析计算,并提出了地基处理方案的建议。 相似文献
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合理有效利用能源,建设节能环保型住宅,是今后住宅发展的方向,本文从绿色环境、节能、节水、建筑材料的选择等几个方面进行了阐述,并对屋顶空间、地下空间、立体空间的合理利用提出了新的设想。 相似文献
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由废弃窑洞倒塌引发的黄土边坡失稳严重威胁了黄土高原地区居民的生命财产安全。通过野外调查,选取陕西省延安市三亩台滑坡为典型案例,基于室内试验分析了窑洞废弃、依窑建房等工况下黄土含水量和土体强度的变化规律,运用数值模拟研究了窑洞废弃、依窑建房过程中最危险滑面上的应力和强度变化趋势。从土体应力-强度关系角度揭示了废弃窑洞诱发黄土边坡变形破坏机理。研究表明,窑洞废弃和依窑建房增大了土体含水量,降低了土体的抗剪强度,致使坡体下部土体剪应力逐渐接近其抗剪强度,边坡的稳定性随之降低,最终窑洞坍塌引发滑坡。 相似文献
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Hong-key Yoon Dr. 《GeoJournal》1990,21(1-2):95-102
China's loessland is the home of ancient China's civilisation. For thousands of years, a distinct form of dwelling in Shaanxi, a part of China's loessland has been caves burrowed out of the soil. People still prefer living in cave dwellings to free standing Chinese houses. The persistence of cave dwellings may be an indication that the traditional cave dwellings has been a successful ecological adaptation to the local loess environment with long severe winters and intense summer heat. 相似文献
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A multidisciplinary study was undertaken at the Qijurittuq Site (IbGk‐3) on Drayton Island in Low‐Arctic Quebec (Canada) to document the relationships between climatic, environmental, and cultural changes and the choice of Thule/Inuit dwelling style in the eastern Arctic. Several marine terraces were 14C‐dated with shells in order to reconstruct the area's uplift (glacioisostatic rebound) curve. Plant macrofossil analysis of peat was conducted to reconstruct past vegetation and, indirectly, past climate. Archaeological surveys and excavations characterized the structure of subterranean sod houses at the Qijurittuq Site and were supplemented with open interviews with Inuit elders for a better understanding of site location and the use of household space. The sites selected for habitation were well‐drained sandy marine terraces in a valley sheltered from prevailing winds. Sod houses were in turn made possible by the abundance of driftwood on the island and the presence of nearby peatland. Thule/Inuit people used semi‐subterranean houses rather than igloos at the Qijurittuq Site during the dry, cold conditions toward the end of the Little Ice Age. Stable environmental conditions and food supply during winter possibly explain the use of those semipermanent houses on Drayton Island. However, it does not exclude the use of igloos during short expeditions on ice. © 2011 Wiley Periodicals, Inc. 相似文献
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House types and their spatial patterns in Singapore 总被引:1,自引:0,他引:1
Lim Keak Cheng Dr. 《GeoJournal》1990,22(1):33-48
Four major groups of residential houses coexist in Singapore. They are: (a) bungalows, semi-detached and terrace houses; (b)
public flats; (c) private flats; (c) shophouses; and (d) attap and zinc-roofed houses. Each group of houses has its own features
and specific locations. The share of each group of houses in the total housing stock as well as in a census unit varies with
time. The aim of this paper is three-fold. Firstly, it gives an overview of the house types, their features, growth and spatial
spread; secondly, it examines the spatial patterns of housing as in 1980; and finally, it outlines the future trends of housing
development. The present composition and the spatial pattern of housing in Singapore are very much a result of government
planning since 1960. Having solved the problem of housing, the Singapore government now aims at improving the quality of public
housing which presently accomodates some 88% of the total population of 2.7 million to a level close to that of the private
housing. 相似文献
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Ajay Kumar Sreerama Rajaram Chenna Mishra Shashank Pradeep Kumar Ramancharla Karnath Anoop 《Natural Hazards》2017,85(3):1851-1875
Natural Hazards - Methods capable of assessing the vulnerability of houses for future earthquakes are of fundamental importance for the safety and development of an area. As the detailed assessment... 相似文献
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琼东南盆地晚第三纪浮游有孔虫深度分层意义 总被引:1,自引:0,他引:1
依据Kelle1985年、Gasperi等1993年有关中新世印度洋和太平洋浅层水、中层水和深层水浮游有孔虫深度分层组合的划分模式,对南海琼东南盆地崖13-1-4井晚第三纪浮游有孔虫作了定量研究,并分析了陆架海区浮游有孔虫不同深度分层组合含量的变化与古地理环境变迁的关系。崖13-1-4并以浅层水、中层水组合为主,深层水组合不发育,反映该区温跃层不发育,不利于深层水浮游有孔虫的生存。滨海区,浮游有孔 相似文献
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晚中新世西太平洋暖池的浮游有孔虫和氧同位素证据 总被引:1,自引:0,他引:1
浮游有孔虫深水种Globoquadrina dehiscens于10Ma左右从西太平洋和南海绝灭, 要比其他地区早大约3Ma.伴随这一事件还见以表层暖水种增多而深水种大幅度减少为主要特征的生物群变化.古生物和氧同位素结果指示当时表层水变暖和温跃层变深, 我们认为是与早期西太平洋暖池的发育有关.该种在西北和西南太平洋呈阶段性消失也说明暖水堆集比赤道区更强, 尽管印尼海道在晚中新世已大为变窄, 穿越印尼海道的径流可能尚保持较高的通量水平而使赤道区暖水堆集不特别明显.南海的浮游氧同位素值通常比开放西太平洋的低, 也说明中新世时期的上层海水环境与现代相似, 都是暖池边缘区比中心区变化大.暖池边缘区水体环境多变和温度梯度较高可能是受季风的影响, 结果造成深水种的降低和G.dehiscens提早从南海地区绝灭. 相似文献
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依据GertaKeler和Gasperi,Kennett有关中新世印度洋和太平洋浅层水、中层水和深层水浮游有孔虫深度分层组合的划分模式,对南海琼东南盆地崖19-1-1井晚第三纪浮游有孔虫作了定量研究,并分析了陆架海区浮游有孔虫不同深度分层组合含量的变化与古地理环境变迁的关系。崖19-1-1井以浅层水、中层水组合为主,深层水组合不发育,反映本区温跃层不发育,不利深层水浮游有孔虫的生存。滨海区,浮游有孔虫仅为少数几个浅层水的优势种,中层水浮游有孔虫不发育;内浅海区,浅层水浮游有孔虫占绝对优势,中层水浮游有孔虫处于次要地位,所含比例相对较小;外浅海区及陆坡半深海区,浅层水和中层水浮游有孔虫均较发育,中层水浮游有孔虫百分含量相对较高。崖19-1-1井在上新世早中期曾出现外浅海至陆坡半深海区,为古水深最大时期 相似文献
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兰州-民和盆地恐龙足印化石及其赋存层位的特征表明,恐龙生息与早白垩世沉积环境和构造作用关系密切。盆地扩张时期出现的湖沼环境和构造稳定时期是恐龙生活的最佳时期和场所。 相似文献