所属单位：

土木工程学院

发表刊物：

Bulletin of Engineering Geology and the Environment

关键字：

Collapsible loess · Dynamic compaction (DC) · Effective improvement depth · Numerical simulation · Technological parameter

摘要：

A series of tests and studies were carried out on the parameters and efects of dynamic compaction (DC) for the deep and thick collapsible loess foundation under superhigh fll in the Lishi area, Shanxi Province, China. The test results indicate that a deep collapsible loess foundation can be efectively improved utilizing DC; moreover, loess collapse is signifcantly eliminated within the improvement range, and the efective improvement depth can be well estimated exploiting the modifed Menard formula. Additionally, after the energy level of DC exceeds 2000 kN ∙ m, the characteristic value of bearing capacity of collapsible loess foundations can surpass 300 kPa, and the deformation modulus is beyond 25 MPa. The numerical model established by ABAQUS is reliable and can provide some guidance on the design and construction of similar engineering projects.

第一作者：

梅源

论文类型：

期刊论文

ISSN号：

1435-9529

是否译文：

否

发表时间：

2021-08-19