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王玉蘭1，趙冬1，代時(shí)2

 (1 西安建筑科技大學(xué)土木工程學(xué)院， 西安 710055； 2 中煤西安設(shè)計(jì)工程有限公司， 西安710055)

 

［摘要］彬縣大佛寺明鏡臺為國家級重點(diǎn)保護(hù)文物。近年來，由于集中降雨和地震等因素的影響，明鏡臺臺基出現(xiàn)了蠕動變形和局部沉降，并導(dǎo)致上部墻體出現(xiàn)裂縫、木結(jié)構(gòu)發(fā)生損壞等。通過現(xiàn)場勘察和病害分析，定性分析得出明鏡臺滑坡形成機(jī)理。建立了合理的三維有限元模型，采用有限元強(qiáng)度折減法對明鏡臺邊坡穩(wěn)定性進(jìn)行分析，動態(tài)地模擬了邊坡失穩(wěn)時(shí)滑移面形成的過程，得出了明鏡臺邊坡失穩(wěn)時(shí)的破壞形式和滑移面位置。

［關(guān)鍵詞］明鏡臺； 邊坡穩(wěn)定性； 有限元強(qiáng)度折減法

中圖分類號：TU457      文獻(xiàn)標(biāo)識碼：A      文章編號：1002-848X(2013)13-0084-07

 

Wang Yulan1, Zhao Dong1, Dai Shi2

 (1 Department of Civil Engineering, Xi′an University of Architecture & Technology, Xi′an 710055, China; 2 China Coal Xi′an Design Engineering Co., Ltd., Xi′an 710055, China)

 

Abstract: Mingjingtai of Big Buddhist Temple in Binxian County is the state-level key cultural relics. In recent years, owing to the influence of rainfalls and earthquakes, foundation of Mingjingtai suffered peristalsis deformation and partial sedimentation, which lead to the upper walls cracks and wood structure damages. Through geological survey and disease analysis, mechanism of Mingjingtai’s landslide was obtained. Using the method of finite element strength reduction, three-dimensional finite element model was established and applied to the landslide stability numerical analysis of Mingjingtai. The forming process of the sliding surface was dynamically simulated, the failure model of the landslide was obtained and the location of sliding surface was obtained when the slope became instability.

Keywords: Mingjingtai; landslide stability; finite element strength reduction

作者簡介：王玉蘭，博士研究生，助教，Email: yulan1984333@163.com。

 

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