孔隙水压力传感器的改装设计
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摘要
以模型实验的方法,根据孔隙水压力计的工作原理,将微型土压力传感器改装成孔隙水压力传感器,用于模型实验中的实际监测,以验证改装后的孔压计的有效性,为实验提供可靠数据。将土压力传感器和由其改装的孔压计埋置于同一深度的砂土中,测得的土压力值略高于孔隙水压力值,这完全符合有效应力原理,定性地说明了改装后的孔压计有一定的工作效果;实验测得的孔压值与由Putnam得出的理论值基本吻合,其平均误差约为5%,最大误差不超过10%。由此定量地表明,改装后的孔隙水压力传感器是有效的,可以用于实际监测。
Based on the working principle of the pore pressure sensors,the micro soil-pressure sensor is refitted into the pore pressure sensor so that it can be used as a practical monitor for the model experiment.The effectiveness of the refitted pore pressure sensor can be verified,thus providing reliable data for the experiment.As it can be seen from the experiment,the soil pressure sensor which is buried at the same depth as the refitted pore pressure sensor gets a higher measared value than that of the pore pressure sensor.This conforms exactly to the effective stress principle,which qualitatively proves the effectiveness of the refitted pore pressure sensor;the pore pressure value obtained from the experiment coincides well with the Putnam's theoretical value.The average error is approximately 5% and the maximum error is less than 10%,which quantitatively proves the effectiveness of the refitted pore pressure sensor,so that the pore pressure sensor is used in later experimental research.
Based on the working principle of the pore pressure sensors,the micro soil-pressure sensor is refitted into the pore pressure sensor so that it can be used as a practical monitor for the model experiment.The effectiveness of the refitted pore pressure sensor can be verified,thus providing reliable data for the experiment.As it can be seen from the experiment,the soil pressure sensor which is buried at the same depth as the refitted pore pressure sensor gets a higher measared value than that of the pore pressure sensor.This conforms exactly to the effective stress principle,which qualitatively proves the effectiveness of the refitted pore pressure sensor;the pore pressure value obtained from the experiment coincides well with the Putnam's theoretical value.The average error is approximately 5% and the maximum error is less than 10%,which quantitatively proves the effectiveness of the refitted pore pressure sensor,so that the pore pressure sensor is used in later experimental research.
引文
[1]CECS 55:93,孔隙水压力测试规程[S].上海:上海岩土工程勘察设计研究院,1993.
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[3]栾茂田,曲鹏,杨庆.波浪引起的海底管线周围海床动力响应分析[J].岩石力学与工程学报,2008,27:789-795.
[4]王忠涛,栾茂田,JENG Dong-Sheng.随机波浪作用下海床动力响应及液化的理论分析[J].岩土力学,2008,29:2051-2076.
[5]Poulos H G.Marine geotechnics[M].London:The Academic Divisionof Unwin Hyman Ltd,1988.
[6]Glen R,Philip J,Peter S.Analytical technique for the interpretation ofmeasured pore pressure in shallow marine sediments[C]∥Proceedings of the Eleventh International Offshore and PolarEngineering Conference.Norway:The International Society of Offshoreand Polar Engineers,2001:469-475.
[7]Panday S,Huyakorn P S.A fully coupled physically-based spetially-distributed model for evaluating surface/subsurface flow[J].WaterResource,2001,27(4):361-382.
[8]邱大洪,孙昭晨.波浪渗流力学[M].北京:国防工业出版社,2006.
[9]张小玲,栾茂田,郭莹.海底管线周围海床瞬时液化的数值分析[J].防灾减灾工程学报,2009,29(2):165-171.
[10]王立忠,潘冬子,凌道盛,等.海床波浪响应的积分变换解及其分析应用[J].岩土工程学报,2006,28(7):847-852.
[11]刘占阁,栾茂田,王忠涛.波浪作用下成层海床孔隙水压力响应的简化分析[J].地震工程与工程振动,2006,26(2):156-160.
[12]WANG Li-zhong,PAN Dong-zi,PAN Cun-hong.Analytical solutionfor wave-induced respoonse of seabed with variable shear modulus[J].China Ocean Engineering,2007,21(3):389-400.
[2]潘冬子,王立忠,潘存鸿.粉质海床波浪响应的数值模拟及试验研究[J].岩土力学,2008,29:2697-2707.
[3]栾茂田,曲鹏,杨庆.波浪引起的海底管线周围海床动力响应分析[J].岩石力学与工程学报,2008,27:789-795.
[4]王忠涛,栾茂田,JENG Dong-Sheng.随机波浪作用下海床动力响应及液化的理论分析[J].岩土力学,2008,29:2051-2076.
[5]Poulos H G.Marine geotechnics[M].London:The Academic Divisionof Unwin Hyman Ltd,1988.
[6]Glen R,Philip J,Peter S.Analytical technique for the interpretation ofmeasured pore pressure in shallow marine sediments[C]∥Proceedings of the Eleventh International Offshore and PolarEngineering Conference.Norway:The International Society of Offshoreand Polar Engineers,2001:469-475.
[7]Panday S,Huyakorn P S.A fully coupled physically-based spetially-distributed model for evaluating surface/subsurface flow[J].WaterResource,2001,27(4):361-382.
[8]邱大洪,孙昭晨.波浪渗流力学[M].北京:国防工业出版社,2006.
[9]张小玲,栾茂田,郭莹.海底管线周围海床瞬时液化的数值分析[J].防灾减灾工程学报,2009,29(2):165-171.
[10]王立忠,潘冬子,凌道盛,等.海床波浪响应的积分变换解及其分析应用[J].岩土工程学报,2006,28(7):847-852.
[11]刘占阁,栾茂田,王忠涛.波浪作用下成层海床孔隙水压力响应的简化分析[J].地震工程与工程振动,2006,26(2):156-160.
[12]WANG Li-zhong,PAN Dong-zi,PAN Cun-hong.Analytical solutionfor wave-induced respoonse of seabed with variable shear modulus[J].China Ocean Engineering,2007,21(3):389-400.
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