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 (1 湖南科技學(xué)院土木工程與建設(shè)管理系，永州 425100；2 湘潭大學(xué)土木工程與力學(xué)學(xué)院，湘潭 411105)

［摘要］利用ANSYS有限元軟件，針對(duì)群樁水平力學(xué)響應(yīng)問題，進(jìn)行了三維有限元數(shù)值模擬，驗(yàn)證了模型的正確性。在此基礎(chǔ)上，對(duì)水平受荷群樁基礎(chǔ)進(jìn)行不同工況的計(jì)算分析，探討了樁距、樁長(zhǎng)和樁徑各種因素對(duì)群樁工作性狀的影響。分析表明，樁距與樁徑對(duì)水平受荷群樁工作性狀影響較大，樁長(zhǎng)對(duì)其影響較小，8倍樁徑為群樁效應(yīng)的臨界樁距，加大樁徑能明顯控制樁頭側(cè)移，提高樁的承載能力。

［關(guān)鍵詞］樁距；樁長(zhǎng)；樁徑；荷載分擔(dān)；樁身位移；樁身彎矩

Parameter analysis on the behavior of lateral-load pile groups

Hu Tingting1, Liu Zhong2, Wu Tengfeng2, Hu Zhe2

(1 Department of Civil Engineering and Construction Management, Hunan University of Science and Engineering,

Yongzhou 425100, China; 2 College of Civil Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China)

Abstract:Using finite element program ANSYS, the three-dimensional finite element numerical simulation on the lateral nonlinear response of pile groups was carried out, and the correctness of the model was verified. The calculation and analysis of the lateral-load pile groups under different conditions were discussed, and the various factors, such as pile space, pile length, pile diameter, acting on the behavior of the lateral-load pile groups were also discussed. The analysis results show that the pile space and the pile diameter have a greater impact on the behavior of the lateral-load pile groups, and the pile length has a lower impact. Eight-time pile diameter is the critical pile space of the pile group effect. Increasing pile diameter can control the lateral displacement of the pile obviously and improve the bearing capacity.

Keywords:pile space; pile length; pile diameter; load-sharing; pile displacement; pile moment

作者簡(jiǎn)介：胡婷婷，碩士，助教，Email:hutingting19831204@163.com。

參考文獻(xiàn)

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