- 摘 要
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（1 西安建筑科技大學土木工程學院，西安 710055； 2 陜西省文化遺產(chǎn)研究院，西安 710075）
［摘要］彬縣大佛寺現(xiàn)為世界文化遺產(chǎn)，明鏡臺作為大佛寺的重要組成部分，由于其臺基沉降變形較為嚴重，已經(jīng)威脅到上部文物的安全。針對明鏡臺臺基穩(wěn)定問題提出合理的治理措施；根據(jù)彈性樁設計原理，計算明鏡臺錨索抗滑樁樁身內(nèi)力，為錨索抗滑樁的設計提供依據(jù)；利用ANSYS有限元分析軟件建立三維有限元模型，得出未采取加固措施時安全系數(shù)取1-25情況下明鏡臺的位移和塑性變形，對抗滑樁和錨索抗滑樁的加固效果進行對比分析，得出錨索抗滑樁較抗滑樁能更有效地控制水平位移，且使被加固體的應力和應變分布更加均勻；將樁身內(nèi)力的理論計算值與數(shù)值計算值進行對比，兩者的變化趨勢基本一致，驗證了理論計算的合理性。
［關(guān)鍵詞］明鏡臺； 加固； 抗滑樁； 錨索； 數(shù)值分析
中圖分類號：TU457文獻標識碼：A文章編號：1002-848X(2018)04-0090-06
Study on reinforcement and protection of anti-slide pile for Ming-Jing Tai in Great Buddha Temple at Bin County
Wang Yulan1, Zhao Dong1, Lei Fan2, Zhang Weixi1
(1 Department of Civil Engineering, Xi’an University of Architecture & Technology, Xi’an 710055， China;2 Shaanxi Provincial Institute of Cultural Heritage， Xi’an 710075， China)
Abstract:Ming-Jing Tai is a key component of The Great Buddha Temple (Da-Fo Si) which is a world cultural heritage site located at Bin County. The settlement deformation of the platform of Ming-Jing Tai is already serious to threaten the safety of the upper cultural relics. Reasonable treatment measures were put forward about the stability of Ming-Jing Tai platform. According to the elastic pile design principle, the internal force of the cable-anchored anti-slide pile of Ming-Jing Tai was calculated, which provided the basis for the design of cable-anchored anti-slide pile. Three-dimensional finite element model was established using finite element analysis software ANSYS to obtain the displacement and plastic deformation of Ming-Jing Tai, in the case of safety coefficient of 1-25 and no reinforcement measures. The reinforcement effect of anti-slide pile and cable-anchored anti-slide pile were analyzed and compared to conclude that cable-anchored anti-slide pile can more effectively control the horizontal displacement to make the stress and strain distribution of reinforced structure more uniform. Comparison and analysis were made about the theoretical results and the numerical results of the internal forces of pile body to show and concluded that the changing trends of the two were basically the same and the rationality of theoretical calculation was verified.
Keywords:Ming-Jing Tai; reinforcement; anti-slide pile; cable-anchored; numerical analysis
*陜西省教育廳資助項目（16JK1430），西安建筑科技大學青年基金資助項目（QN1531）。
作者簡介：王玉蘭，博士研究生，講師，Email：yulan1984333@163.com。
