Hybrid foundation structure, and method for building same

摘要

The present invention relates to a foundation structure vertically installed on the ground, and comprising: an upper support layer 10 formed on the ground in the vertical direction; and a lower support layer 20 formed so as to extend downward from the upper support layer 10 and such that the width thereof is less than that of the upper support layer 10. The disclosed upper support layer 10 and the lower support layer 20 are structures formed from soil solidified by means of feeding and mixing an earth and soil-solidifying agent therein, and therefore are efficient and prevent overload due to boring equipment.

主权项

1. A method for construction of a hybrid foundation structure, wherein the hybrid foundation structure includes:
an upper support layer disposed in a ground and extending in a first direction; and a lower support layer extending in the first direction from the upper support layer such that the lower support layer has a narrower width than the upper support layer, the method comprising: forming a bore hole in the ground while a mixture of earth, sand, and a soil-solidifying agent is injected into the bore hole to form the upper support layer and the lower support layer, wherein the earth and the sand are a mixture of slime and aggregates, the slime being produced when the bore hole is formed, and wherein forming the bore hole and injecting the mixture include ridging a first portion of the produced slime and injecting a mixture of a second portion of the produced slime, the aggregates, and the soil-solidifying agent.