The invention discloses a gravel grouting
pile with extruding and expanding supporting discs and a construction method thereof. The gravel grouting
pile comprises supporting disc bodies, a grouting
pipe, prefabricated holes, geotechnical cloth, gravel and a gravel
slurry fixing
pile body, the grouting
pipe is arranged at the center position of the gravel
slurry fixing pile body, the prefabricatedholes are annularly distributed on the
pipe wall of the grouting pipe correspondingly, the geotechnical cloth wraps the outer parts of the prefabricated holes, the gravel wraps the upper part of the grouting pipe, the supporting disc bodies are located on the outer wall of the gravel
slurry fixing pile body. The gravel grouting pile with the extruding and expanding supporting discs is formed by extruding and expanding through a special extruding and expanding device on the basis of a common gravel grouting pile, and still has the advantages of being free of
noise and free of vibration during construction, the bearing
disc diameter of an extruding and expanding supporting disc pile can reach about 2 times of the
diameter of the pile body, the sum of the bearing area of each disc and each
branch can reach several times of the main
diameter section of the pile body, and compared with a straight rod pile, the vertical
bearing capacity of the extruding and expanding supporting disc pile canbe increased by one time or even more than one time.