In　this　study,　soil　pile　models　using　transparent　soil　were　used　to　study　the　displacement　distribution　law　under　different　dimensional　and　loading　conditions　(vertical　load　ranges　from　3　(30　N)　to　50　kg　(500　N)).　Experiments　were　conducted　to　obtain　displacement　contour　maps　from　model　piles　with　variable　diameters　and　lengths.　Overall,　the　results　show　that　side　resistance　increases　monotonically　with　the　pile　diameter　and　that　the　pile　displacement　trend　under　the　same　load　increases　on　shorter　piles　as　well　as　the　angle　between　the　soil　displacement　direction　and　vertical　direction.　The　final　results　were　utilized　to　obtain　displacement　contour　maps　of　rock　mass　and　identify　failure　zones　under　different　loads.　It　is　found　that　the　side　resistance　enhancement　effect　increases　monotonically　with　pile　diameter.　The　angle　between　the　soil　displacement　direction　and　vertical　direction　between　model　piles　of　different　lengths　under　identical　loading　conditions　increases　with　decreasing　soil　volume,　and　the　side　frictional　resistance　and　order　variation　resistance　play　a　more　substantial　role　than　pile　tip　resistance.　The　findings　provide　a　basis　for　constructing　highways　and　also　bridge　pile　foundations.　©　2020,　Saudi　Society　for　Geosciences.