铁路无砟轨道水泥乳化沥青砂浆吸振与隔振特性
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摘要
采用加速度计测定了冲击荷载作用下普通混凝土与水泥乳化沥青砂浆(CA砂浆)试件以及试件下部钢板的振动加速度随时间的变化,并用落锤法对比了普通混凝土与CA砂浆的抗冲击破坏特性.研究表明:普通混凝土受到冲击后,其振动加速度随时间衰减不明显,且振动时间较长,其下部钢板也有类似规律;CA砂浆受到冲击后,其振动加速度表现为3个明显的衰减阶段,振动时间也要短于普通混凝土,同样CA砂浆下部钢板也有类似规律;与普通混凝土相比,CA砂浆表现出较好的吸振与隔振功能.抗冲击破坏的结果表明,CA砂浆的抗冲击性能优于普通混凝土.
Acceleration meters were used to test the vibration acceleration changing with time of the concrete and cement and emulsified asphalt mortar(CA mortar) samples as well as the steel board under the sample.The anti-impacting property of concrete and CA mortar were tested by a drop hammer method.The results show that the vibration acceleration have no distinct attenuation when the concrete was impacted and the vibration time was long.The vibration of steel board under the concrete had the same behavior,however,the vibration acceleration of CA mortar after impact had three distinct attenuation periods and vibration time was shorter than that of concrete.The same is true of the steel board under the CA mortar.Comparing to the concrete,CA mortar has better property of adsorption and separation capacity of vibration.The anti-impacting property of CA mortar is also better than that of concrete.
Acceleration meters were used to test the vibration acceleration changing with time of the concrete and cement and emulsified asphalt mortar(CA mortar) samples as well as the steel board under the sample.The anti-impacting property of concrete and CA mortar were tested by a drop hammer method.The results show that the vibration acceleration have no distinct attenuation when the concrete was impacted and the vibration time was long.The vibration of steel board under the concrete had the same behavior,however,the vibration acceleration of CA mortar after impact had three distinct attenuation periods and vibration time was shorter than that of concrete.The same is true of the steel board under the CA mortar.Comparing to the concrete,CA mortar has better property of adsorption and separation capacity of vibration.The anti-impacting property of CA mortar is also better than that of concrete.
引文
[1]COENRAAD E.Recent development in slab track[J].Euro-pean Railway Review,2003,9(2):81-85.
[2]SHIGERU M,HIDEYUKI T,MASAO U,et al.The mecha-nism of railway tracks[J].Japan Railway and TransportationReview,1998,15(3):38-45.
[3]MURATA O.Overview of recent structure technology R&Dat RTRI[J].Quarterly Report of RITI,2003,44(4):133-135.
[4]KATSUOSHI A.Development of slab tracks for HokurikuShinkansen line[J].Quarterly Report of RITI,2001,42(1):35-41.
[5]王澜,宣言,万家,等.浮置板式轨道结构隔振效果仿真研究[J].中国铁道科学,2005,26(6):48-52.WANG Lan,XUAN Yan,WANG Jia,et al.The simulationresearch on the vibration insulation performance of the float-ing slab track structure[J].China Railway Science,2005,26(6):48-52.(in Chinese)
[6]练松良,杨文忠,刘扬.不同类型轨枕轨道结构动力性能试验研究[J].铁道学报,2010,32(2):131-136.LIAN Song-liang,YANG Wen-zhong,LIU Yang.Test of dy-namic behavior of the track structures with different types ofsleepers[J].Journal of the China Railway Society,2010,32(2):131-136.(in Chinese)
[7]陶连金,李晓霖,陆熙,等.地铁诱发地面运动的衰减规律的研究分析[J].世界地震工程,2003,19(1):83-87.TAO Lian-jin,LI Xiao-lin,LU Xi,et al.Study on attenuationlaw of ground motion induced by subway shock[J].WorldEarthquake Engineering,2003,19(1):83-87.(in Chinese)
[8]周海生,吕伟民,葛剑敏,等.阻尼沥青路面降噪特性的研究[J].公路交通科技,2005,22(8):8-11.ZHOU Hai-sheng,LWei-min,GE Jian-min,et al.Noise-re-ducing mechanics of damping asphalt pavement[J].Journal ofHighway and Transportation Research and Development,2005,22(8):8-11.(in Chinese)
[9]赵腾龙.严寒地区水泥乳化沥青砂浆的制备与性能[D].长沙:中南大学,2009.ZHAO Teng-long.The composition and performance of CAmortar used in sever cold environment[D].Changsha:CentralSouth University,2009.(in Chinese)
[10]曾晓辉.水泥乳化沥青砂浆材料特性与充填层施工质量控制研究[D].长沙:中南大学,2010.ZENG Xiao-hui.Studies on characteristic of CA mortar andconstruction quality control of packing layer[D].Changsha:Central South University,2010.(in Chinese)
[11]赵志远,毕乾,王立燕,等.废橡胶颗粒改性水泥基材料的塑性开裂和抗冲击性能[J].混凝土与水泥制品,2008(4):1-5.ZHAO Zhi-yuan,BI Qian,WANG Li-yan,et al.The plasticshrinkage and cracking resistance and impact performances ofrubber particles modified cement based material[J].ChinaConcrete and Cement Products,2008(4):1-5.(in Chinese)
[2]SHIGERU M,HIDEYUKI T,MASAO U,et al.The mecha-nism of railway tracks[J].Japan Railway and TransportationReview,1998,15(3):38-45.
[3]MURATA O.Overview of recent structure technology R&Dat RTRI[J].Quarterly Report of RITI,2003,44(4):133-135.
[4]KATSUOSHI A.Development of slab tracks for HokurikuShinkansen line[J].Quarterly Report of RITI,2001,42(1):35-41.
[5]王澜,宣言,万家,等.浮置板式轨道结构隔振效果仿真研究[J].中国铁道科学,2005,26(6):48-52.WANG Lan,XUAN Yan,WANG Jia,et al.The simulationresearch on the vibration insulation performance of the float-ing slab track structure[J].China Railway Science,2005,26(6):48-52.(in Chinese)
[6]练松良,杨文忠,刘扬.不同类型轨枕轨道结构动力性能试验研究[J].铁道学报,2010,32(2):131-136.LIAN Song-liang,YANG Wen-zhong,LIU Yang.Test of dy-namic behavior of the track structures with different types ofsleepers[J].Journal of the China Railway Society,2010,32(2):131-136.(in Chinese)
[7]陶连金,李晓霖,陆熙,等.地铁诱发地面运动的衰减规律的研究分析[J].世界地震工程,2003,19(1):83-87.TAO Lian-jin,LI Xiao-lin,LU Xi,et al.Study on attenuationlaw of ground motion induced by subway shock[J].WorldEarthquake Engineering,2003,19(1):83-87.(in Chinese)
[8]周海生,吕伟民,葛剑敏,等.阻尼沥青路面降噪特性的研究[J].公路交通科技,2005,22(8):8-11.ZHOU Hai-sheng,LWei-min,GE Jian-min,et al.Noise-re-ducing mechanics of damping asphalt pavement[J].Journal ofHighway and Transportation Research and Development,2005,22(8):8-11.(in Chinese)
[9]赵腾龙.严寒地区水泥乳化沥青砂浆的制备与性能[D].长沙:中南大学,2009.ZHAO Teng-long.The composition and performance of CAmortar used in sever cold environment[D].Changsha:CentralSouth University,2009.(in Chinese)
[10]曾晓辉.水泥乳化沥青砂浆材料特性与充填层施工质量控制研究[D].长沙:中南大学,2010.ZENG Xiao-hui.Studies on characteristic of CA mortar andconstruction quality control of packing layer[D].Changsha:Central South University,2010.(in Chinese)
[11]赵志远,毕乾,王立燕,等.废橡胶颗粒改性水泥基材料的塑性开裂和抗冲击性能[J].混凝土与水泥制品,2008(4):1-5.ZHAO Zhi-yuan,BI Qian,WANG Li-yan,et al.The plasticshrinkage and cracking resistance and impact performances ofrubber particles modified cement based material[J].ChinaConcrete and Cement Products,2008(4):1-5.(in Chinese)
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