濒危薄型窟顶石窟加固新技术的应用研究
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摘要
通过分析薄型窟顶的失稳原因并结合文物保护的加固原则,归纳出传统加固石窟窟顶技术的缺点,提出用钢梁吊顶结构加固窟顶的新方法,并具体介绍了该方法的加固措施和原理。结合新疆库车克孜尔尕哈石窟平共处第41窟现存情况,对加固前后的石窟窟顶进行稳定性分析和计算,结果表明,加固后的窟顶危岩体安全稳定,并且该加固方法最大程度地保存了历史信息,对文物干预最小。由此得出钢梁吊顶技术加固薄型窟顶石窟,是一种可靠有效的方法。
This paper firstly analyzed the reasons for the failing of grottoes' celling,combined with the comparison of the previous methods of reinforcement for folium on the top of grottoes,a new method of strengthening the celling by using Steel ceiling was being proposed.And specific taked the No.41 grottoe of Kezier gaha in Xinjiang kucha as example,calculating and analyzing the stability of the top of the grottoe strengthened by the steel girder supported the top,the results show that the crag on the top of the grottoe is stable and safe after reinforcement ;this method mostly saves the historical information,and smallest intervents heritage.So we get the result that reinforcing the folium on the top of grottoes with the hidden-buried reinforced concrete structure is a reliable and effective method.
This paper firstly analyzed the reasons for the failing of grottoes' celling,combined with the comparison of the previous methods of reinforcement for folium on the top of grottoes,a new method of strengthening the celling by using Steel ceiling was being proposed.And specific taked the No.41 grottoe of Kezier gaha in Xinjiang kucha as example,calculating and analyzing the stability of the top of the grottoe strengthened by the steel girder supported the top,the results show that the crag on the top of the grottoe is stable and safe after reinforcement ;this method mostly saves the historical information,and smallest intervents heritage.So we get the result that reinforcing the folium on the top of grottoes with the hidden-buried reinforced concrete structure is a reliable and effective method.
引文
[1]《克孜尔尕哈石窟抢险加固工程勘察报告》和《克孜尔尕哈石窟抢险加固工程设计报告》敦煌研究院、兰州大学文物保护中心2008年。
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[1]李文军,王逢睿.中国石窟岩体病害治理技术[M].兰州:兰州大学出版社,2006.
[2]赵立新,肖成忠.龙游石窟3#洞东区洞顶围岩稳定性分析及加固措施[J].中国科技信息,2007,(18):73-74.
[3]刘高,谌文武.工程岩体力学[M].兰州:兰州大学出版社,2004.
[4]孙满利,王旭东,李最雄,等.交河故城瞭望台保护加固技术[J].岩土力学,2007,28(1):163-168.
[5]张咸恭,王思敏,张倬元.中国工程地质学[M].北京:科学出版社,2000.
[6]程良奎,张作眉,杨志银.岩土加固实用技术[M].北京:地震出版社,1994.
[7]邓平凡.ANSYS10.0有限充分析自学手册[M].北京:人民邮电子工业部出版社,1994.
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