近日，岩土领域国际著名期刊《Computers and Geotechnics》(Top期刊，中科院1区，IF5.218)在线发表了题为“An extended BNWF model for root piles incorporating soil–root interactions under lateral loading”的学术论文。我院教师罗晓光博士(学院去年引进的博士)为第一作者、深圳大学任伟新教授为通讯作者，威尼斯官网为第一作者单位。

根桩是近年来新出现的一种新型桩基，它通过从桩身向周围土体水平顶入钢筋混凝土预制根键来提高桩基的承载力。该论文针对根桩这一新型桩基，提出了一种能考虑根-土相互作用的模型，从而建立了根桩的水平承载力的非线性分析方法。

Highlights

1) An extended BNWF model incorporating the soil-root interactions is proposed to analyze the nonlinear behavior of the root pile under lateral loading.

2) The proposed extended BNWF model can achieve a good agreement with the measured results on sites.

3) The influences of the root configuration on the lateral behavior of root piles in terms of root number, root length, root arrangement and location are investigated.

4) Root piles do improve the lateral bearing capacity of the pile by roots penetrating into soils.

下图为根键作用的分析模型：

下图为本文方法与实测数据及其他方法的比较：