CFG桩复合地基承载特性分析

CFG桩复合地基具有变形模量高、承载力提高幅度大等特点，设计时可以通过改变桩体材料配比，改变桩体直径、桩长、桩距、垫层厚度等设计参数，使承载力提高以达到设计要求。其中，褥垫层有协调桩和桩间土变形的能力，使得桩和桩间土始终参与工作，一般工程中取10～30cm较为合理。     

小直径石灰桩在软弱地基处理中的设计与应用

小直径石灰桩是加固处理软弱地基较为经济可行的方法之一，本对小直径石灰桩的应用范围，加固机理，设计方法，施工方法等作一介绍。     

预应力管桩基础工程的设计质量监理

预应力管桩基础工程设计质量监理应当重视设计阶段监理，强调设计与施工场地的具体情况相结合。管桩设计质量监理的六个主要环节，即：优化设计方案、确定单桩承载力、设计布桩、选择桩锤、确定“收锤标准”、根据工程地质条件选择合理的管桩施工方法。文章提出了管桩基础的应用范围，对预应力管桩基础的推广、设计和监理等工作都有较高的参考价值。     

振动沉管桩贯入阻力对设计、施工的影响

振动沉管桩因其在施工中明显的优势而被广泛采用，但实际操作中常出现沉桩达不到设计标高现象，而不得不改变施工工艺、更换设备或变更设计，从而延误工期，增加投资等情况。本文通过对振动沉桩的贯入机理、贯入阻力的估算、取值方法、阻力判定及实例分析，让设计、施工人员在设计、施工沉管桩时能合理地确定施工方法、进度、质量。     

深层水泥搅拌桩在软地基中的应用

介绍了深层搅拌桩的加固原理和设计方法，对厚层软土地区而言，深层搅拌桩比预制和灌注桩等有较强的竞争力和较好的经济效益。     

某桥墩桩基偏位分析与纠偏实施效果

根据桥墩桩基施工现场的具体情况，通过理论计算，分析了两基桩产生偏位的主要原因。采用卸载止推、反向堆载、挖坑卸荷、强力牵拉等综合纠偏方法对产生偏位的两基桩实施纠偏，经过一个多月的缓慢纠偏使两桩基基本恢复原位，纠偏后经桩身低应变动测（反射波法）检测其桩身完整满足设计要求。     

采用静压沉桩方法处理预制桩基础的研究

通过对打入式预制桩的事故原因的分析，得出桩尖未达到持力层即桩吊脚是造成单桩承载力大部分达不到设计要求的主要原因。经过分析比较，建议采用静压沉桩方法对工程桩进行复压处理，静载试验检测结果表明，所有复压桩均达到设计承载力。实践证明，静压沉桩处理此类打入式预制桩的吊脚问题是适宜的。     

嵌岩灌注桩承载力的探讨（节录）

该通过对嵌岩桩与非嵌岩桩承载性状分析，提出在上覆土层较厚、强度较高的情况下，桩并不一定要设计成嵌岩桩。大直径钻孔桩设计综合考虑桩的长径比，上覆土层性质，基岩性质和成桩工艺。     

胜利浅海油田采油平台独立桩有限元分析

胜利浅海小型采油平台和栈桥平台多采用独立桩支撑，由于受到风、海流、波浪及海冰的联合作用，平台的水平位移成为设计时必须重点考虑的因素。对独立桩的晃动研究是在P—y曲线法的基础上，应用有限元分析软件ANSYS，把桩周土体简化为作用在桩单元上的水平向非线性弹簧单元，模拟独立桩在水平荷载作用下的受力和变形，通过模型桩试验验证此方法的合理性和准确性．为研究海洋独立桩结构提供了一种计算方法。     

基桩负摩阻力的计算

桩的负摩阻力的发生将使桩侧土的部分重力传递给桩，因此，负摩阻力不但不能成为桩承载力的一部分，反而变成施加在桩上的外荷载。这是在软弱粘土或湿陷性黄土等地基中确定单桩容许承载力和设计桩基础时应该注意的问题。     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

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/     

漏洞百出的教育

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?     

Western and Eastern culture differences in commercial field

The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity.     

只要努力,不要后悔

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.     

浅谈移民问题

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.     

风的曲线

Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose.     

Sister Carrie, an Adherent of Desires

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.     

Improvement of one-cycle controller by use of proportional integral differential controller

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