The pile-beam composite structure in high-elevation debris flow areas is selected as the research object. Based on characterizing the pile-beam composite structure. the particle-flow simulation analysis program and the explicit dynamic analysis program were used to study comparatively the blocking effects of single-row piles and two-row piles. as well as that of a pile-beam composite ... https://www.freaknleather.com/product-category/tungsten-grinder/