共查询到20条相似文献，搜索用时 78 毫秒
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砼的质量如何,要通过其性能检验的结果来表达.在施工中,虽然力求做到既保证(砼)所要求的性能,又保持其质量的稳定性,但实际上,由于原材料、施工条件、工艺以及试验等许多复杂因素的影响,必然造成砼质量的波动.因此,提高高强度砼的施工技术并对其质量进行控制是一项非常重要的工作. 相似文献
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在对多个砼钻孔灌注桩施工的基础上，从砼灌注桩的施工程序分析入手，得出了影响砼钻孔灌注桩施工质量的几个重要因素，并提出了相应预控措施。 相似文献
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结合益田村５＃地块Ｂ标段底板大体积砼施工实例,针对基础结构的设计 特点,介绍大体积砼施工工艺、降温措施、施工保证措施和施工实践体会 相似文献
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王庆学 《北京工业职业技术学院学报》2005,4(3):22-24
沉管灌注桩施工中桩径的控制是保证其质量的重要因素.通过对沉管内砼体的受力分析,并用2个工程实例,探讨了管内砼柱面的相对高度在一定的条件下对充盈系数的影响,认为不仅提管时间和机械原因能影响灌注桩桩径(即充盈系数)的大小,而且选用不同的加灰频率、严格控制管内砼柱面的相对高度,也明显地影响充盈系数的大小,其对保证灌注桩的施工质量,提高经济效益具有重要的意义. 相似文献
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董晓峰 《忻州师范学院学报》2001,17(3):93-95
建筑工程往往需要在冬期施工，由于冬季气温较低，施工不当就容易造成砼冻害，而引发工程质量事故，本文通过我院教学主楱工程冬期施工的具体事例，陈述了砼冬期施工质量控制及检验方法的重要性。 相似文献
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李艳 《石家庄铁路职业技术学院学报》2011,10(2)
叙述冬季砼施工现状,介绍冬季砼施工原理、方法,从材料、砼拌和、砼浇筑、拆模、养护、质量检查等方面阐述冬季砼施工采取的措施.加强现场管理,保证冬季施工安全,完善内业资料整理,对保证砼冬季施工质量意义重大. 相似文献
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高性能砼在高层建筑中应用越来越广泛,在施工中很容易出现各种质量问题;本文从高性能砼试配、拌制要求、施工方法、质量保证措施等方面,介绍了高强砼的施工技术及质量控制措施。 相似文献
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以焦作电厂祥和苑信宅楼为例，从钢筋 砼筏板施工技术要求及采取的施工措施以及在砼中掺加减水剂及粉煤灰等方面提出了一套施工及质量控制措施，不仅能很好地满足措施方面的需要，同时，也能来一定的经济效益和社会效益。 相似文献
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《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
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邱崇丙 《唐山师范学院学报》2014,(1):21-23
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。 相似文献
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《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love. 相似文献
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Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject. 相似文献
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Rachel Zupek 《海外英语》2007,(11):40-41
我们绝大部分人都同意一件事情——我们喜欢金钱。但是你对金钱的喜欢之情足够到让你创立一份事业么?.财富通常被人忽视,主要在于人们不能真正了 相似文献
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Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities. 相似文献