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郭小东 《赤峰学院学报(自然科学版)》2013,(1):44-46
近年来,随着社会经济的迅速发展和城市化进程日益加快,城区雨水可渗透地面越来越少,而市区降水汇水面积却越来越大,导致城市内涝问题日益严重,给城市造成严重的经济损失和社会影响.通过对我国排水系统现状的研究,分析现存的整体弊端,试图提出一些符合社会经济和生态环境的城市排水系统改扩建及规划方面的建议,为我国城市基础设施的建设做一点贡献. 相似文献
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高层建筑土建工程施工管理 总被引：3，自引：0，他引：3
高层建筑对提高城市土地使用率、缓解城市用地紧张、增大城市绿化面积有着重要作用.因此,现代城市建筑中高层建筑施工越来越多.作为高层建筑工程施工的重要组成部分,土建工程的施工管理对高层建筑工程质量有着重要的影响,其是高层建筑工程质量保障的基础.文中就高层建筑土建工程施工管理进行了简要的论述. 相似文献
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《赤峰学院学报(自然科学版)》2016,(13)
高层建筑一旦发生火灾,就会遭遇火灾蔓延速度快和人员疏散困难等多种问题,从而引发严重的后果.所以,高层建筑的防火设计至关重要,需要设计人员根据建筑特点进行合理的设计.而消防给水系统设计是其中的关键环节,因此本文对高层建筑消防给水系统设计需要面对的问题展开了分析.在此基础上,则从给水方式确定、室外消防给水设计、室内消防给水设计和喷淋系统给水设计几个方面对其设计问题展开了具体的研究. 相似文献
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设计制作了一款智能型窗户系统,该系统以单片机MSP430G2553为核心,以环境温度、湿度以及振动作为判断条件,完成对窗户的自动控制,主要由单片机数据处理模块,环境温湿度测量模块,振动检测模块,液晶显示模块,电机模块和电源构成.该系统能通过其数据检测传感器电路不断循环检测室外湿度及温度,当室外温湿度达到一定程度时窗户自动关闭,防止潮湿空气或雨水进入房间. 相似文献
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如何让“冲冲”而来的雨水变“害”为“宝”？如何留住宝贵的雨水让其变为可用的资源？这对水质型缺水、雨水却很丰沛的我国东部季风气候区是一个必须面对的课题。城市的大面积硬化使雨水成“灾”。随着城市建设的发展,土地硬化面积不断增大,降雨中的大部分雨水被柏油、水泥等硬化地面阻隔,很难直接渗入地下补充地下水。比较“纯”的绿地,其径流系数是0.2左右,如果地面铺上了水泥或是沥青,径流系数一般在0.9左右,这就意味着雨水落在硬质地面上,只有10%可以渗透到地下,而剩下90%的雨量要完全靠市政排水管网排出。也就是说,面积相同的绿地和硬地,其自身的排水能力相差8倍。 相似文献
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本文对华北科技学院体育场地设施与河北省内高校体育场地现状和《普通高等学校体育场馆设施配备标准》进行比较,针对华北科技学院体育场地实际情况提出:延长室外体育场地的使用时间;对现有室外体育场地科学管理;增大体育场地室内面积建设等发展策略。 相似文献
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《赤峰学院学报(自然科学版)》2017,(5)
城市地价迅猛增长起来.如何更有效地利用城市用地,在固定面积限制下,启用高层建筑是解决的对策之一.高层建筑大量出现,样式也别具一格.在高层建筑内的装饰,单元幕墙的使用频率相对较高.本文介绍了单元幕墙在高层建筑内的应用,列举了其作用、分类以及特点.重点分析了影响在高层建筑内,使用单元幕墙的工程造价的因素,从原材料、制作工艺以及其他的生产成本等方面展开研究.最后,对降低高层建筑内单元幕墙的工程造价提出可行性的办法. 相似文献
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随着国家的城市化进程,城市建筑在向高层发展,商业建筑和住宅都越来越高,越来越集中,这就给城市建筑的给水、排水、污水处理等提出了新的更高的要求.本文着重阐述高层建筑在给水方面、楼面雨水的排除方面、小区污水排放和处理等方面如何更加科学、环保、节能. 相似文献
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以福建工程学院北区校园为例,从日照角度分析,结合校园内主要活动群体外出活动时间规律,通过天正日照分析软件对室外环境进行建筑物阴影轮廓和多点日照分析,了解在不同时点建筑物的阴影范围和户外空间中的日照时长,并以此为依据,对校园室外活动场所的位置选择进行优化,为校区外部活动场所的设计提供指导性的建议。 相似文献
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陈尧 《衡阳师范学院学报》2014,(5):109-112
为了促进大学生的全面发展,适应社会对高校公共体育课程要求,文章探讨高校公共体育课程结合户外运动的项目特点,就户外运动特点和户外运动课程概念入手,分析户外运动课程特点以及户外运动课程的价值。建议大学体育选修课引入户外体验式培训的教学方式,结合高校所在地区自然与社会有效资源合理选择户外运动项目加入到体育课程中以适应社会的发展和时代的需求。 相似文献
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我国从20世纪80年代开始发展户外运动,户外运动的发展呈现出大众化和普遍化的特点,吸引了越来越多的大学生参与。西部地区高校大学生户外运动处于初级发展阶段,其校内大学生对户外运动认识不足,且师资力量和校内硬件设施的不足都制约着西部地区高校户外运动的发展,提出了要加强西部地区户外运动的发展应增加高校户外运动课程的设置,加强师资力量、团队建设、场地建设等建议。 相似文献
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幼儿园户外运动性活动区是利用幼儿园户外场地环境划分的多个不同运动类型区域,是幼儿进行体育活动的场所。文章从幼儿园教育实践出发,剖析运动性活动区存在的问题,并针对问题从场地利用、规章制度建设、活动内容安排、教师指导等方面提出具体举措。 相似文献
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Kola Adeyemi 《Higher Education》2001,42(3):307-332
The objectives of the study were to criticallyexamine the desirability of the catchment areapolicy in the admission process in Nigeria andto analyse the implementation and implicationsof catchment factor as one of the criteria usedin the admission process into NigerianUniversities.Three federal universities were purposefullysampled for the study. Data were obtained fromthe universities' admission officers,examination and record officers, faculty anddepartmental examination officers. Data werealso collected from the Joint Admissions andMatriculation Board, the National UniversitiesCommission and the Federal Ministry ofEducation.Data were collected through a preparedchecklist. Two research questions were raisedand two hypotheses formulated. The obtaineddata were analysed by using simple percentageespecially for the trend and comparativeanalysis. The t-test statistic and anova wereused to test the hypotheses, while simplepercentage and ratios were used to compute thewastage rate difference.The major findings include: that admissionratio into the universities among states wasnot proportional to the size of enrolment atthe terminal grade of the secondary schoollevel in these states which justify affirmative policies such as the one in focusto redress the imbalance; that the universitieshave been implementing faithfully the policyaccording to the laid-down guidelines; that themajor groups in the catchment area of eachuniversity predominate admission, except wherea major group is absent; and that there was asignificant difference in the quality ofperformance of students admitted on merit andthose admitted through catchment area policywhile a no significant difference was found inthe academic performance among studentsadmitted through catchment area, universitydiscretion and educationally disadvantagedstates; and that the wastage rate of those onmerit was lower than those through thecatchment area policy.Based on the findings, the study suggested thatthe policy should be retained, but finetuned soas to effectively serve as a measure throughwhich the imbalance in university educationcould be minimized and increased access touniversity education by the various groups inthe country would be assured. However, thepaper suggested that the percentage allocatedto this factor be reduced in the light of itsnegative implication on the quality of studentperformance and subsequently the primaryobjective of university education. 相似文献
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The construction of a building may change the microclimate in the vicinity, and planning indicators in a master plan may directly affect the outdoor physical environmental quality in residential areas. An inappropriate plan for a site may accelerate wind and intensify vortexes over places on the pedestrian levels, which leads to an adverse outdoor environment. Therefore, the design of a cluster of buildings should not focus only on the buildings but also provide a good outdoor environment around the buildings. To tackle the problem of inadequate wind environment, the relationship between the building’s floor area ratio and height was identified in this study as the main planning indicator to be examined on its effects on the outdoor wind environment. A computational fluid dynamics (CFD) model was hence developed to simulate the wind conditions generated by some typical site layouts with different values for planning indicators under relevant weather conditions, which were typical of those in Hangzhou, China. The simulated wind conditions are assessed using the wind speed ratio over the whole area of the building cluster at the pedestrian level. The effects on the local wind condition due to the varying of the planning indicators are discussed whilst considering the potential construction costs. The indicators resulting in better external conditions are highlighted in the conclusion as the recommendation which could be used as a rule of thumb by architects and planners at the master planning stage. The study disproves the common belief in the practice that a lower floor area ratio means fewer buildings and therefore greater external comfort. In fact, the higher the building, the greater the outdoor comfort wind zone for pedestrians. However, the increment in comfort area is limited to buildings extending from 25 to 30 levels. 相似文献
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本文采用点面雨型综合的方法,对海南中部地区的点面暴雨雨型进行综合分析和比较,并用设计洪水进行检验,从而得出暴雨点面雨型相差不大,较小流域的点雨型可以代替面雨型的结论. 相似文献
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随着经济的发展,余暇时间的增多及生活方式的转变,户外休闲运动在社会中已有了一定的发展,尤其是在高消费人群中更成为一种时尚。本文通过对铜仁地区户外运动开展现状的调查,经过分析研究提出铜仁地区户外运动的发展及存在的问题。推动我区户外运动的健康发展。 相似文献