- 摘 要
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(1 河南大學土木建筑學院, 開封 475004; 2 鄭州大學水利與環(huán)境學院, 鄭州 450001)
[摘要]利用ABAQUS軟件對豎向及水平荷載共同作用下斜坡上單樁進行數(shù)值模擬,研究樁的荷載傳遞與變形特點。分析結(jié)果表明,在先施加豎向荷載再施加水平荷載情況下,豎向荷載的增大能有效減小樁頂側(cè)移、降低樁身彎矩,且在豎向荷載一定的情況下,樁頂沉降及側(cè)移隨水平荷載的增大而增大;土質(zhì)較好情況下豎向荷載對樁頂側(cè)移的有利影響比土質(zhì)較差情況下豎向荷載對樁頂側(cè)移的有利影響大。
[關(guān)鍵詞]復雜荷載; 斜坡; 樁-土共同作用; 數(shù)值模擬
中圖分類號:TU473.1+1 文獻標識碼:A 文章編號:1002-848X(2014)16-0096-03
Study on bearing capacity of the single pile on slope under complex loads
Zhang Jianwei1,2, Kong Qingmei1, Ma Jindong1, Wang Zhilong1, Guo Wei1
(1 School of Civil Engineering and Architecture, Henan University, Kaifeng 475004, China; 2 College of Water Conservancy & Environmental Engineering, Zhengzhou University, Zhengzhou 450001, China)
Abstract: To study the load transfer and deformation characteristics of the pile, the software ABAQUS was used to carry out the numerical simulation on the single pile on slope under complex loads of vertical loads and horizontal loads. The results show that when the vertical load is applied earlier than the horizontal load, the lateral displacement on the top of the pile and the bending moment of the pile can be effectively reduced owe to increase of the vertical load, and when the vertical load is fixed, the settlement and the lateral displacement on the top of the pile increase with the increase of the horizontal load. Under condition of good soil, the beneficial effect of the vertical load on the lateral displacement on the top of the pile is larger than that of under the condition of poor soil.
Keywords: complex load; slope; pile-soil interaction; numerical simulation
*河南省科技廳基礎(chǔ)與前沿技術(shù)研究項目(132300410234),河南省教育廳科學技術(shù)研究重點項目(13A560097)。
作者簡介:張建偉,博士,副教授,碩士生導師,注冊土木工程師(巖土),Email:zjw101_0@163.com。
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