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1.
软基处理在公路施工中较普遍,做好软基处理施工质量控制和施工监控,对把握路堤稳定、沉降等非常必要。根据大量公路软基施工实践,从施工机械、原材料、施工安排、施工过程、施工效率、成品检验、制度约束等方面提出了公路软基处理施工质量的综合控制方法。  相似文献   

2.
在软土地基上进行施工是公路工程中不可避免的内容,而如何对软基进行有效处理并采取相应措施确保工程质量则是解决这一问题的关键.本文对软土地基容易出现的问题进行了简要介绍,并以某工程为例,对软基路段的施工方法进行了讨论.  相似文献   

3.
本文从市政道路工程施工中常见的问题,展开了分析软地基处理的特点.其中除去软地基中的软弱淤泥部分是清淤换填的目的,而更深层次的搅拌桩施工工作则是为了进一步加固地基的措施,这两方面都是软地基处理工作中的必不可少的施工程序.软基处理段具有较高的技术经济效益,其推广应用价值较高.  相似文献   

4.
专利背景:本专利发明人卢如年先生在二十年从事设计和施工管理工作的过程中,曾主管或参与处理了许许多多填海造地软基上采用传统施工工艺建造地下建筑物的工程实例,在软基上建造工程项目其特点是:施工极其困难、建造成本特别  相似文献   

5.
公路填方路基软基处理技术   总被引:1,自引:0,他引:1  
结合工程实例论述了用水泥粉喷桩处理高填方路基软基的施工方法及质量检测技术,详细介绍了施工工艺和注意事项.实践证明,用水泥粉喷桩处理高填方路基软基是一种有效的方法.  相似文献   

6.
高速公路软基处理采用水泥搅拌桩属于隐蔽工程,如施工质量不好,一旦被路堤及构筑物覆盖,便构成隐患且难以检查和补救。某高速公路S01合同段软基处理采用水泥搅拌桩,该施工方法的两个关键节点是:事前优化配合比设计,事中严格按试桩工艺进行施工并加强质量控制,最后采取合适的方法进行桩体质量检测评定。施工实例证明:控制关键节点是取得水泥搅拌桩良好施工质量的重要保证。  相似文献   

7.
主要介绍在铁路软基处理中首次应用现浇混凝土薄壁筒桩的施工技术及效果,供大家共同探讨与借鉴.  相似文献   

8.
安徽沿江高速公路TY段采用粉喷异构桩施工,实践证明粉喷异构桩在含泥炭层的软基处理中效果显著。同时比较说明,得出水泥搅拌桩在含有泥炭层的软基处理中效果不理想。  相似文献   

9.
通过公路调查结果表明,软基路段由于地基沉降引起的桥头跳车现象主要是施工图设计时,地质钻探布孔过少,钻探深度不够,未能及时发现软基存在,或者未能准确探明软基范围和深度以及软土的物理力学性质等等,导致桥头路堤软土地基处遗漏,或采取的处治方法不恰当.本文针对路桥工程的路基施工前的准备工作进行分析和探讨.  相似文献   

10.
牛皮砂围墩式沙体围堰,是深层淤泥软基上围堰施工的新工法。可解决淤泥软基承载力较低给施工带来的困难,增加堰体边坡稳定性,自身具有很好的防渗作用,成本低廉。  相似文献   

11.
《海外英语》2007,(5):44-45
It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,  相似文献   

12.
一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/  相似文献   

13.
《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   

14.
《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   

15.
王菲 《华章》2007,(12):273-273
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   

16.
裴水妹 《华章》2007,(11):196
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   

17.
18.
1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec…  相似文献   

19.
《海外英语》2007,(4):8-9
城堡, 是欧洲典型的建筑之一, 每个城堡都有一个美丽的传说或是一段历史。从本期开始, 我们将推出“城堡之旅”, 带各位读者去浏览、观赏欧洲各地的城堡, 开始一段文化与历史的旅途!  相似文献   

20.
During interview with English majors, it was found that a majority of students expressed disappointment with their experience of English literature classes. Students' dislike of learning English literature appears to be the major problem of teaching English literature in China. Reader response approach is a good way to solve this problem. In this paper, I explain the rationale behind the reader response approach, such as its origin, definition, features, assumptions, and strategies. Then I illustrate how reader response approach works as a teaching strategy by presenting several teaching models. At last I evaluate its usefuiness for teachers and present the advantages of reader response approach in Chinese context.  相似文献   

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