车辆振动对山丹明长城遗址的影响分析
|
摘要
爆破振动、汽车、火车以及其它各种人类活动所导致的环境振动,对土遗址文物的安全可能会产生严重的影响,振动防护问题乃是文物保护研究中的重要课题之一,而如何科学合理地判定其影响程度并采取必要的防振对策,对于土遗址文物防护非常重要。本文以甘肃山丹县新河驿明长城遗址为例,对各类车辆所产生的振动情况进行了分析测试,获得了高速公路两侧长城土遗址不同部位、不同方向的振动速度和加速度,较为全面地反映了车辆载重、车速、场地条件等因素对振动效应的影响,提出了不同类型土遗址振动安全度安全阈值,为长城土遗址的振动安全防护提供了重要依据。
Ambient vibration caused by blasting vibration,automobile,trains and other human activities may have serious impact on the safety of ancient earthen sites,so the vibration protection is always one of the important issues in the study of heritage conservation. It is significant for the protection of ancient earthen sites to scientifically determine the impact degree and then take necessary vibration control countermeasures. In this paper,taking the Great Wall site of Ming Dynasty in Xinheyi,Shandan County,Gansu province as an example,the impact of vehicle vibration generated by various types of vehicles on the ancient earthen sites was observed and tested. Vibration velocities and accelerations in different parts and different directions of earthen sites of the Great Wall at both sides of the highway were obtained,which could comprehensively reflect the impact of some factors( vehicle load,speed,site conditions,etc.) on vibration effect. Finally,the vibration protective thresholds for different types of earthen sites were proposed. The result could offer valuable reference to the protection of ancient earthen sites of the Great Wall.
Ambient vibration caused by blasting vibration,automobile,trains and other human activities may have serious impact on the safety of ancient earthen sites,so the vibration protection is always one of the important issues in the study of heritage conservation. It is significant for the protection of ancient earthen sites to scientifically determine the impact degree and then take necessary vibration control countermeasures. In this paper,taking the Great Wall site of Ming Dynasty in Xinheyi,Shandan County,Gansu province as an example,the impact of vehicle vibration generated by various types of vehicles on the ancient earthen sites was observed and tested. Vibration velocities and accelerations in different parts and different directions of earthen sites of the Great Wall at both sides of the highway were obtained,which could comprehensively reflect the impact of some factors( vehicle load,speed,site conditions,etc.) on vibration effect. Finally,the vibration protective thresholds for different types of earthen sites were proposed. The result could offer valuable reference to the protection of ancient earthen sites of the Great Wall.
引文
[1]洪海春,石玉成,刘拓,等.芦山地震古建筑震害调查与分析[J].地震工程与工程振动,2014,34(1):147-155.HONG Haichun,SHI Yucheng,LIU Tuo,et al.Investigation and analysis of earthquake damage to ancient buildings induced by Lushan earthquake[J].Earthquake Engineering and Engineering Dynamics,2014,34(1):147-155.(in Chinese)
[2]陈丙午,林学文,陈雪茜,等.爆破振动对莫高窟的影响[G]∥敦煌研究文集(上).兰州:甘肃民族出版社,125-133.CHEN Bingwu,LIN Xuewen,CHEN Xueqian,et al.Impact of Blasting Vibration on the Mogao Grottoes[G]∥Research Corpus on Dunhuang(first volume).Lanzhou:Gansu Ethnic Publishing House,125-133.(in Chinese)
[3]中国工程建设标准化协会建筑振动专业委员会.建筑振动工程手册[M].北京:中国建筑工业出版社,2002.Branch of Architectural Vibration,China Association for Engineering Construction Standardization.Architectural Vibration Engineering Manual[M].Beijing:Building Industry Press of China,2002.(in Chinese)
[4]林宗元,主编.岩土工程勘察设计手册[M].沈阳:辽宁科学技术出版社,1996.LIN Zongyuan.Geotechnical Investigation and Design Manual[M].Shenyang:Liaoning Science and Technology Publishing House,1996.(in Chinese)
[5]中华人民共和国住房和城乡建设部.古建筑防工业振动技术规范(GB/T 50452-2008)[S].北京:中国建筑工业出版社,2008.Ministry of Housing Urban-Rural Development of the People’s Republic of China.Technical specifications for protection of historic buildings against man-made vibration(GB/T 50452-2008)[S].Beijing:Building Industry Press of China,2008.(in Chinese)
[2]陈丙午,林学文,陈雪茜,等.爆破振动对莫高窟的影响[G]∥敦煌研究文集(上).兰州:甘肃民族出版社,125-133.CHEN Bingwu,LIN Xuewen,CHEN Xueqian,et al.Impact of Blasting Vibration on the Mogao Grottoes[G]∥Research Corpus on Dunhuang(first volume).Lanzhou:Gansu Ethnic Publishing House,125-133.(in Chinese)
[3]中国工程建设标准化协会建筑振动专业委员会.建筑振动工程手册[M].北京:中国建筑工业出版社,2002.Branch of Architectural Vibration,China Association for Engineering Construction Standardization.Architectural Vibration Engineering Manual[M].Beijing:Building Industry Press of China,2002.(in Chinese)
[4]林宗元,主编.岩土工程勘察设计手册[M].沈阳:辽宁科学技术出版社,1996.LIN Zongyuan.Geotechnical Investigation and Design Manual[M].Shenyang:Liaoning Science and Technology Publishing House,1996.(in Chinese)
[5]中华人民共和国住房和城乡建设部.古建筑防工业振动技术规范(GB/T 50452-2008)[S].北京:中国建筑工业出版社,2008.Ministry of Housing Urban-Rural Development of the People’s Republic of China.Technical specifications for protection of historic buildings against man-made vibration(GB/T 50452-2008)[S].Beijing:Building Industry Press of China,2008.(in Chinese)
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心