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OALib Journal期刊
ISSN: 2333-9721
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风化砂改良对膨胀土性能的影响
DOI: 10.3969/j.issn.1000-2006.2014.04.028, PP. 145-148
Keywords: 膨胀土改良,风化砂,初始干密度,掺砂比,加州承载比
Abstract:
采用宜昌市广泛分布的风化砂对某一级公路改建项目的膨胀土进行改良。通过改良土室内胀缩性分析,表明采用风化砂改良膨胀土能显著抑制其胀缩特性;通过室内cbr(加州承载比)试验,得出了掺入风化砂能显著提高原状膨胀土的cbr值,使之达到公路路用标准。探讨了不同的初始干密度、不同掺砂比例对膨胀土cbr值的影响。结果表明:初始干密度和掺砂比例对cbr值有很大的影响,在初始干密度一定时,cbr值随着掺砂比例的增加总体上有所增大;在掺砂比例一定时,cbr值随着初始干密度的增加而增大。在相同掺砂比例下,cbr值与初始干密度呈幂函数关系。在相同干密度时,当cbr值与掺砂比例在初始干密度较小时,呈线性相关关系;当初始干密度较大时,呈指数函数关系。
| [1] | 王雁然,曹定胜.改性膨胀土cbr值的试验研究[j].岩石力学与工程学报,2004,23(s1):4396-4399.wangyr,caods.testingstudyoncbrvalueofimprovedexpansivesoils[j].chinesejournalofrockmechanicsandengineering,2004,23(s1):4396-4399.
|
| [2] | 陈爱军,张家生.石灰改良膨胀土的强度特性试验研究[j].湖南工程学院学报,2010,20(2):63-67.chenaj,zhangjs.experimentalstudyonstrengthcharacteristicsoflimeimprovingexpansivesoils[j].journalofhunaninstituteofengineering,2010,20(2):63-67.
|
| [3] | 陈开圣.高液限红粘土cbr试验[j].公路,2010(2):148-151.chenks.experimentaloncbrvalueofhighliquidlimitclay[j].highway,2010(2):148-151.
|
| [4] | 陈修和,张胜,陈为成,等.皖中膨胀土的承载比(cbr)强度特性研究[j].工程地质学报,2006,14(3):386-389.chenxh,zhangs,chenwc,etal.cbrandcompactiondegreesoforiginalandcompactedexpansivesoilsasexpresswaysubgradeincentralanhuiprovince[j].journalofengineeringgeology,2006,14(3):386-389.
|
| [5] | 王明甫,程钰.石灰改性膨胀土强度的室内试验研究[j].人民长江,2010,41(6):71-73.wangmf,chengy.laboratorystudyonstrengthofexpansivesoilimprovedwithlime[j].yangtzeriver,2010,41(6):71-73.
|
| [6] | 谭松林,黄玲,李玉花.加石灰改性后膨胀土的工程性质研究[j].工程地质学报,2009,17(3):421-425.tansl,huangl,liyh.engineeringpropertiesofexpansivesoilmixedwithlimeatyichang-jingmenexpressway[j].journalofengineeringgeology,2009,17(3):421-425.
|
| [7] | 余飞,陈善雄,许锡昌,等.膨胀土cbr强度特性机制与分析[j].岩土力学,2007,28(6):1113-1117.yuf,chensx,xuxc,etal.characteristicsandmechanismofcbrofexpansivesoil[j].rockandsoilmechanics,2007,28(6):1113-1117.
|
| [8] | 常安登.膨胀土承载比的试验研究[j].交通标准化,2008(4):116-118.changad.expansivesoilbearingratioexperimentresearch[j].communicationsstandardization,2008(4):116-118.
|
| [9] | 郑柯,胡卓丽.膨胀土路基压实和承载强度研究[j].公路,2008(1):28-31.zhengk,huzl.studyonthestrengthandbearingcapacityofsubgradecompaction[j].highway,2008(1):28-31.
|
| [10] | 杨俊,黎新春,张国栋,等.风化细砂改良膨胀土胀缩特性室内试验研究[j].河南理工大学学报:自然科学版,2012,31(6):734-739.yangj,lixc,zhanggd,etal.researchonindoorexperimentalofweatheredfinesandmodifiedexpansivesoilswelling[j].journalofhenanpolytechnicuniversity:naturalscience,2012,31(6):734-739.
|
| [11] | 饶锡保,黄斌,吴云刚,等.膨胀土击实样膨胀特性试验研究[j].武汉大学学报:工学版,2011,44(2):211-215.raoxb,huangb,wuyg,etal.experimentalstudyofexpansioncharacteristicsofcompactedexpansivesoil[j].journalofwuhanuniversity:technicaledition,2011,44(2):211-215.
|
| [12] | 阎飞.膨胀土改性试验研究[j].土工基础,2012,26(3):104-105.yanf.researchonsoilimprovementforexpansivesoil[j].soilengandfoundation,2012,26(3):104-105.
|
| [13] | 李方华.高液限土填料改良的最佳掺砂砾石比试验研究[j].岩土力学,2010,31(3):785-788.lifh.experimentalstudyofoptimalproportionofgraveladoptedtoimprovethepropertiesofhighliquidlimitsoilsubgrate[j].rockandsoilmechanics,2010,31(3):785-788.
|
| [14] | 朱志铎,郝建新,黄立平.cbr试验影响因素及在工程中应注意的几个问题[j].岩土力学,2006,27(9):1593-1596.zhuzd,haojx,huanglp.influentialfactorsincbrtestandseveralproblemstobenoticedinengineering[j].rockandsoilmechanics,2006,27(9):1593-1596.
|
| [15] | 肖凯成.考虑水稳定性影响的膨胀土路基填料承载比特性[j].交通标准化,2008(11):14-16.xiaokc.thecbrvalueofexpansivesoilembankmentconsideringtheinfluencingofhydration[j].communicationsstandardization,2008(11):14-16.
|
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