Construction method of cellar for building completed

Abstract

Disclosed is a construction method of a cellar for a building completed. The construction method includes fixing supporting structures to bottom concrete of the building; installing a press-in machine on the supporting structures; inserting posts for supporting the building into the foundation under the building by inserting hollow piles into the holes to then insert the piles into the underground using the press-in machine, stacking new piles on the inserted piles, and sequentially inserting the piles using the press-in machine; excavating a foundation under the bottom concrete of the building to prepare an underground space when the building is supported by the posts; and placing the concrete on the horizontal and vertical faces of the underground space prepared by the excavating the bottom concrete of the building.

1 . A construction method of a cellar for a building completed, comprising:
 fixing supporting structures to allow stoppers protruding under the supporting structures to be interfered by slots so as not to move by drilling a plurality of holes into bottom concrete of a completed building and the slots connected to the holes and inserting the supporting structures into the slots;   installing a press-in machine on the supporting structures;   inserting posts for supporting the building into the foundation under the building by inserting hollow piles into the holes to then insert the piles into the underground using the press-in machine, stacking new piles on the inserted piles whenever the piles are inserted, and sequentially inserting the piles using the press-in machine;   excavating a foundation of the bottom concrete of the building to prepare an underground space when the building is supported by the posts inserted into the foundation under the completed building; and   placing the concrete on the horizontal and vertical faces of the underground space prepared by the excavating the bottom concrete of the building.   
     
     
         2 . The construction method of  claim 1 , wherein the fixing of the supporting structure comprises fastening top ends of the supporting structures, allowing the stoppers protruding under the supporting structures to be interfered by the slots, and fixing the supporting structures on perimeters of the holes by filling the slots with mortar. 
     
     
         3 . The construction method of  claim 1 , wherein the excavating of the foundation under the concrete comprises excavating the foundation to a depth in which bottom surfaces of the posts inserted into the underground of the completed building are not exposed, and placing at least one level of the concrete in the underground space to construct the cellar. 
     
     
         4 . A construction method of a cellar for a building completed, comprising:
 installing a plurality of posts by excavating a foundation under bottom concrete of the completed building and inserting piles into the ground for supporting the foundation under bottom concrete of the completed building; and   placing concrete on bottom and side faces of an underground space secured by digging the foundation under bottom concrete of the completed building to install the posts.   
     
     
         5 . The construction method of  claim 4 , wherein the installing of the plurality of posts comprises sequentially performing a series of steps of digging a bottom portion of the bottom concrete of the completed building, installing a support plate under the exposed bottom concrete, inserting the piles into the ground using the press-in machine mounted on the support plate to construct the posts, excavating the foundation around the constructed posts, and forming the posts by installing the support plate and the press-in machine on the foundation of the exposed bottom concrete and inserting the piles into the underground. 
     
     
         6 . A construction method of a cellar for a building completed, comprising:
 forming a plurality of supporting structures spaced a predetermined distance apart from each other on the edge of the completed building;   installing a press-in machine on the supporting structures;   forming a plurality of posts for supporting the completed building by inserting piles into the ground under the supporting structures using the press-in machine;   excavating a foundation under the completed building supported by the posts; and   placing concrete on bottom and side faces of an underground space secured by excavating the foundation of the completed building.   
     
     
         7 . The construction method of  claim 6 , wherein the forming of the supporting structures comprises:
 forming a mortar placement space by excavating the foundation under edges of the completed building to a predetermined depth;   forming a reaction part by filling the mortar placement space with concrete to be connected to the bottom of the completed building; and   fixing the supporting structures on the bottom of the completed building to prevent the stoppers protruding under the supporting structures from moving by forming holes drilled vertically in the reaction part by filling concrete and inserting the supporting structures into the holes.