CAJ | 학술논문

针对我国客运专线路基压实检测方法和检测指标过多,利用武广客运专线岳阳段2种典型填料的击实试验和现场4种检测方法的检测结果,对路基压实检测方法与检测指标进行分析.研究结果表明:对中、粗颗粒填料用统一的孔隙率来控制压实度具有不合理性,基床底层的28%和本体的31%的孔隙率要求与相应的压实度95%与92%不匹配;一次变形模量E(ι1)和地基系数K_(30)之间有较好的相关性,可用同一函数进行拟合,当K_(30)为150 MPa/m时,E_(ν1)约为35 MPa;建议完善路基压实检测方法,修正检测指标以保证路基压实质量,简化路基压实检测的程序.
침대아국객운전선로기압실검측방법화검측지표과다,이용무엄객운전선악양단2충전형전료적격실시험화현장4충검측방법적검측결과,대로기압실검측방법여검측지표진행분석.연구결과표명:대중、조과립전료용통일적공극솔래공제압실도구유불합이성,기상저층적28%화본체적31%적공극솔요구여상응적압실도95%여92%불필배;일차변형모량E(ι1)화지기계수K_(30)지간유교호적상관성,가용동일함수진행의합,당K_(30)위150 MPa/m시,E_(ν1)약위35 MPa;건의완선로기압실검측방법,수정검측지표이보증로기압실질량,간화로기압실검측적정서.
The quality control and quality assurance tests used during high -speed railway subgrade construction in Wu Guang passenger transportation line were introduced.Through laboratory proctor compaction tests and in- situ tests using two kinds of filling materials,the relationship between compaction grade and porosity were obtained.The relation between K_(30),and E_(ν1),was analyzed,and reasonable controlling indexes for porosity used in the high-speed railway for middling grained and coarse grained soil were proposed.The different stiffness coefficients for the subgrade were studied by field tests through the plate load tests,and the relation between them was obtained.Finally some suggestions on compaction quality inspection of subgrade were proposed.