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［摘要］結(jié)合某工程大直徑混凝土樁水平靜載試驗(yàn)數(shù)據(jù)資料，用m法計(jì)算了水平承載樁的樁身水平位移和彎矩；根據(jù)相似原理用NL法計(jì)算了樁的水平承載特性（泥面處的水平位移、樁身最大彎矩等）。計(jì)算值與實(shí)測(cè)值的對(duì)比表明，兩種算法對(duì)于樁身最大彎矩的計(jì)算都具有較高的可靠性，m法在大位移（位移值超過(guò)15.48mm）情況下的位移計(jì)算值與實(shí)測(cè)值相比會(huì)有較大誤差，而NL法不受位移條件的限制。
［關(guān)鍵詞］m法；NL法；水平位移；彎矩
中圖分類(lèi)號(hào)：TU473.1文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2011)10-0092-03
Comparative analysis on research methods of horizontal load-bearing characteristics of piles
Li Haijiang, Tong Xiaodong(Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education,Southeast University, Nanjing 210096, China)
Abstract:Combined with in-situ horizontal loading test data of large-scale concrete piles, the horizontal displacement and bending moment of laterally loaded piles were calculated by m method, and the horizontal load-bearing characteristics were calculated by NL method according to the similarity theory. The comparison of calculating and measuring value shows that both  methods have high reliability on the Mmax. In comparison with the measuring displacement, the m method may have large error at the calculating values in case of large displacement, while the NL method is not limited by displacement conditions.
Keywords:m method; NL method; horizontal displacement; bending moment
*國(guó)家自然科學(xué)基金資助（51078082），江蘇省自然科學(xué)基金資助項(xiàng)目（BK2008314）。
作者簡(jiǎn)介：李海江，碩士研究生，Email:lihaijiang1984@163.com。
參考文獻(xiàn)
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［2］勞偉康，周治國(guó)，周立運(yùn).水平承載樁幾種計(jì)算方法的比較分析［J］.廣州建筑，2007，35（2）：24-26.
［3］JTJ254—98港口工程樁基規(guī)范局部修訂(樁的水平承載力設(shè)計(jì))［S］.北京：人民交通出版社，2000.
［4］吳鋒，時(shí)蓓玲.基于NL法的水平受荷樁非線性有限元分析［J］.水運(yùn)工程，2007，35（12）：9-12.