盲沟排水系统在降低坡地地下室抗浮水位的应用研究

对于需要采取抗浮措施的地下室,抗浮水位的高低是技术难度、工期、成本等控制因素。本文以曲靖某坡地建设项目为例,探讨了采用盲沟排水系统降低坡地地下室抗浮设防水位的技术可行性。研究结果表明:采用盲沟排水措施后,坡地地下室施工工期缩短,建设成本降低,经济效益明显,值得推广应用。     

广州及珠三角地区地下水池抗浮设计的研讨

就地下水池抗浮设计进行分析,结合广州及珠三角地区经验,讨论了地下水池抗浮设计水位的取值及抗浮措施问题。为同类工程设计提供了依据。     

浅谈抗浮桩、灌注桩与预应力管桩的优缺点

单纯地下室或高层建筑带地下室越来越多存在地下水位高于地下室底标高,由此带来地下室抗浮设计,在抗浮设计中,采用桩进行抗浮最为普遍,主要分为等截面抗拔桩和非等截面抗拔桩。     

论抗浮锚杆在地下室底板抗浮加固处理中的应用

文章针对建筑物设计未考虑地下水位变化导致底板浮起,结合工程实例,在简单抗浮计算的基础上,从施工角度入手,着重分析技术的具体应用,最后得出抗浮锚杆应用能有效解决高层房屋建筑裙房抗浮,能有效地控制地下水对建筑物的影响,在现代建筑中具有重要的意义。     

济南某大厦水文地质调查与抗浮设防水位的探讨

通过水文地质调查,结合地下水位观测资料及场地周边水文地质资料,进一步查明了济南某工程场地地下水的赋存条件、地下水类型、补给、迳流、排泄条件、季节性变化幅度,降低了勘察阶段所提的抗浮设防水位,节省了工程造价,缩短了工程周期,取得了良好的社会效益。     

地下水对建筑物的影响

地下水的浮力对建筑物设计和施工有不容忽视的影响。结构抗浮验算与地下水的形状、水压力、浮力、地下水位变化的影响因素、意外补水有关,并提出了设计水位计算浮力的概念。地下水位的变化对地基承载力也产生不良影响,因此,必须认真对待,做好地下水的监测和防护工作。     

新世界商业中心超限高层基础结构设计

新世界商业中心主塔楼高度139.95m,采用钢筋混凝土框架-剪力墙结构,地上31层,地下4层。基础采用钢筋混凝土筏板基础,采用PKPM-JCCAD计算软件,进行基础受力及沉降计算,满足上部结构承载的需要。由于地下室埋深较大,地下水位较高,进行结构整体抗浮及局部抗浮计算,通过设置抗浮桩使结构抗浮满足规范要求,确保结构安全。     

某地下室中抗浮锚杆的应用及分析

随着城市化进程加快,建筑空间不断向地下发展和延伸。在一些抗浮水位较高的地区,水浮力可能引起地下室底板隆起开裂、建筑物整体上浮、梁柱及墙体开裂,甚至将桩体拉断,严重影响建筑物安全和使用。工程中一般采用堆载加固、抗浮锚杆或抗浮桩、浮力消除等方法进行抗浮设计。由于施工简单、布置灵活、受力合理、造价低廉等特点,抗浮锚杆越来越多地应用在工程中。本文通过某医院工程实例,详细阐述抗浮锚杆的设计与施工,为类似地下室抗浮设计提供参考。     

库水位下降作用下动水压力型滑坡数值模拟

本文利用Geo-Studio软件对库水位作用下BZM滑坡的渗流场及稳定性进行了模拟分析。分析结果表明:①BZM滑坡中前部地下水位受库水位变动的影响较大,库水位的波动会直接影响地下水位的波动,且地下水位有延迟效应。地下水位线随库水位下降时,其呈现直线递增的趋势,且增大的速率先快后慢。②库水位波动对BZM滑坡稳定系数有较大影响,具体为:库水位下降时,BZM滑坡稳定系数也会逐减小,表现出典型的动水压力型滑坡特征。库水位下降速率大时,稳定系数下降速率相对较大。     

小议高层建筑地下室抗浮设计

随着我国的经济不断的飞速发展,建筑业也在不断的进步。建筑业已成为国民经济支柱产业。在城市化率不断提高的情况下,一些大城市都转向于高层建筑,在高层建筑之下还要考虑到地下室的设计,这就需要考虑到地下室的抗浮设计了。抗浮设计要充分考虑到地下水位的影响,在地下室的结构安全设计中是非常重要的。     

浅谈企业的秘书工作

文章围绕企业秘书工作的中心,探讨了在我国加入WTO后,对秘书工作提出了的更高要求。企业秘书工作者要树立学习、效率、奉献、严谨、创新、全局、守纪、保密意识,同时还必须具备并提高政治素质、文字功底、技术素质、和精明的办事能力。     

Effects of a merger on the human organization

With the formation of the new company, management is in an excellent position to define and build the kind of climate that will result in organizational excellence. And the creation of a climate for excellence may be the key to profits in the future.     

On the distribution of a distance function on the sphere

Summary The distribution of the square of the distance between a random point and a fixed point on ap-dimensional unit sphere when (i) the two points lie on the whole sphere and (ii) the two points lie in the positive quadrant, has been derived, assuming that the random point is distributed proportionally to exp (ky ₁), wherek is a concentration parameter. Then-th order moment in both cases is also obtained.     

Investigations on the life quality of a child from a foster family: the research method

The paper presents some investigations on the life quality of orphaned children placed in foster families in Poland. The author’s own method with the elements of original survey investigations was presented. Consecutive steps on constructing the investigation method were presented. Firstly the investigation goals were set, the subject of investigations was selected and then the form of a questionnaire was suggested. It was essential to choose factual issue to construct the research tool. Two groups of respondents were appointed: children and foster parents. Two research questionnaire forms were presented and their application conditions were highlighted. The method was verified in practice upon the selected representative families. The effectiveness of the method was assessed considering some external factors which appeared during the investigations. The role of the researcher and his influence upon the obtained results was emphasized. It was stressed that the cooperation with the social worker who runs the foster family program during the investigations was of crucial importance. In conclusions the suggested research method was assessed and its weak points were featured. Some suggestions aiming at improving both the method and the research tool in the form of a questionnaire were recommended.     

On the existence of a probability measure compatible with a total preorder on a Boolean algebra

If an economic agent's beliefs about the relative likelihood of events are characterized by a total preorder ? on the algebra $\text{A}$ of events, the problem arises to know under which conditions, ? is representable by a probability measure. Here we show that there exists a probability measure compatible with a total preorder on a Boolean algebra, if and only if, the Boolean algebra is well bounded, weakly Archimedean, and perfectly separable, this last condition substituting for Villegas' monotone condition used in Chateauneuf and Jaffray (1984); if σ-additivity is required. Villegas' monotone condition, must merely be added.     

关于拟分布半群生成元的一个注记

本文将文献[1]中定义的D（A1）线性扩张后，得到X的子空间，进而得到一可闭化的算子，从而给出了拟分布半群生成元的定义。     

浅谈某泵站的降水施工

通过某泵站降水设计实例,从工程概况、降水设计方案、降水施工控制过程等方面全面总结了本工程的设计施工经验,并提出可行建议,为同类工程提供了指导和经验。     

某微型客车前部海运钩设计探讨

随着汽车工业的发展,传统的陆路运输方式存在陆路运输车体形庞大、挤占高速公路资源、容易造成道路交通堵塞等诸多劣势,而采用海运方式能降低运输成本。文章介绍了某微型客车前部海运钩的设计过程,在前期总布置已完成的不利情况下,运用UG软件和CAE分析软件成功设计出符合工艺、间隙、强度及安装要求的前部海运钩。     

谈建筑现场施工管理

建筑施工现场是建筑企业从事施工生产活动,最终形成建筑产品的场所。施工现场管理是建筑企业管理的出发点和落脚点,其水平如何是衡量建筑企业综合管理水平的重要指标,也是保证工程进度和工程质量,提高劳动效率,降低工程成本的重要环节。