- 摘 要
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（1 蘭州大學土木工程與力學學院， 蘭州 730000； 2 國網(wǎng)甘肅省電力公司經(jīng)濟技術(shù)研究院， 蘭州 730050； 3 河南城建學院土木工程學院， 平頂山 467036）
［摘要］針對現(xiàn)今使用的既抗壓又抗拔基礎(chǔ)存在的缺陷和不足，構(gòu)建了聯(lián)合板索基礎(chǔ)并且獲得了發(fā)明專利，該基礎(chǔ)所受的上拔力由其錨板承擔。采用理論和數(shù)值模擬相結(jié)合方法，對比研究了聯(lián)合板索基礎(chǔ)與擴底樁基礎(chǔ)的抗拔機理，進而對比研究了聯(lián)合板索基礎(chǔ)與擴底樁基礎(chǔ)所能承受的極限上拔力，并對比分析了方形與圓形錨板聯(lián)合板索基礎(chǔ)極限上拔力計算的等效規(guī)律，獲得了方形錨板聯(lián)合板索基礎(chǔ)的極限上拔力計算的理論公式和抗拔穩(wěn)定性驗算公式，最后探討了該基礎(chǔ)形式的設(shè)計原則，為其推廣應用提供了理論和技術(shù)支撐。
［關(guān)鍵詞］聯(lián)合板索基礎(chǔ)； 擴底樁基礎(chǔ)； 極限上拔力
中圖分類號：TU753文獻標識碼：A文章編號：1002-848X(2017)13-0098-05
Study of ultimate uplift force on joint plate cable foundation of square anchor plate
Luo Yiping1,2, Deng Xiao1, Yan Zhixin1,3
(1 School of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, China; 2 Research Institute of Economics and Technology of Gansu Province Electric Power Company, State Grid Corporation of China, Lanzhou 730050, China; 3 School of Civil Engineering, Henan University of Urban Construction, Pingdingshan 467036, China)
Abstract:Focusing on the deficiencies of present widely used compression and pulling resistant foundation, a joint plate cable foundation was established and offered patent of invention. The uplift force upon the foundation was undertaken by its anchor plate. Combining theoretical analysis with numerical simulation, the anti-tensile mechanisms of the joint plate cable foundation and the belled pile foundation were comparatively studied. Moreover, the ultimate uplift forces that can be undertaken by the joint plate cable foundation and the belled pile foundation were comparatively studied. The equivalence laws in calculating the ultimate uplift force of the square anchor plate and the circular anchor plate in joint plate cable foundations were analyzed and compared. The theoretical equation of calculating the ultimate uplift force of the square anchor plate in joint plate cable foundation and the verification equation of the anti-pulling stability were obtained. Finally, the principle of designing such type of foundation was explored, which provides theoretical and technical support for the application of the foundation.
Keywords:joint plate cable foundation; belled pile foundation; ultimate uplift force
*國家電網(wǎng)公司科技項目（KJ〔2013〕12）。
通訊作者：言志信，博士（后），教授，博士生導師，Email：yzx10@163.com。
