THIẾT LẬP MÔ HÌNH THÍ NGHIỆM NGHIÊN CỨU HIỆN TƯỢNG XÓI NGẦM DƯỚI ĐÁY CỐNG QUA ĐÊ TRÊN NỀN CÁT CÓ XÉT ĐẾN ẢNH HƯỞNG CỦA CỌC BÊ TÔNG CỐT THÉP

Abstract

There were many incidents of under-dike culverts on sand foundation due to internal erosion issues recently; and most of the incidents occurred at those culverts with the foundation supported by reinforced concrete piles. With the aim to analyze seepage in the foundation under the culverts in consideration of stress state in cases with or without reinforced concrete piles, in this study, a mathematical relationship among factors of the hydraulic dynamics, structures, and soil is established based on the dimensional analysis method. On this basis, a physical experiment model is designed to perform a series of tests with different conditions. The experimental results will help to obtain the necessary data for design and safety warnings.