【摘要】：針對(duì)海上風(fēng)機(jī)四樁導(dǎo)管架基礎(chǔ)受荷特性與常規(guī)水平荷載作用位置較低的群樁基礎(chǔ)不同的問題,提出適用于海上風(fēng)機(jī)導(dǎo)管架基礎(chǔ)的水平受荷分析方法.通過分析導(dǎo)管架基礎(chǔ)離心模型試驗(yàn)的結(jié)果,發(fā)現(xiàn)海上風(fēng)機(jī)導(dǎo)管架基礎(chǔ)各基樁在承受水平荷載的同時(shí)也受到較大的軸向荷載作用,這會(huì)改變樁周土的有效應(yīng)力和水平抗力.基此提出同時(shí)考慮群樁效應(yīng)和基樁樁身軸力影響的p乘子,從而獲得導(dǎo)管架基礎(chǔ)基樁的p-y曲線.采用SACS數(shù)值分析軟件獲得導(dǎo)管架基礎(chǔ)沿邊長(zhǎng)加載和沿對(duì)角線加載時(shí)基礎(chǔ)的變形和內(nèi)力.結(jié)果表明,根據(jù)該文提出的導(dǎo)管架基礎(chǔ)水平受荷分析方法得到的計(jì)算結(jié)果與離心模型試驗(yàn)吻合較好,適用于砂土中海上風(fēng)機(jī)四樁導(dǎo)管架基礎(chǔ)的工程設(shè)計(jì).
[Abstract]:In order to solve the problem that the loading characteristics of offshore fan four-pile jacket foundation are different from those of pile group foundation with low position of conventional horizontal load, a horizontal load analysis method suitable for offshore fan jacket foundation is proposed. By analyzing the results of centrifugal model test of jacket foundation, it is found that each foundation pile of offshore fan jacket foundation is subjected to large axial load while bearing horizontal load, which will change the effective stress and horizontal resistance of soil around pile. In this paper, a p multiplier considering both the pile group effect and the axial force of the foundation pile is proposed, and the p 鈮，

本文編號(hào)：2524589