Installation process for precast reinforced concrete heavy duty retaining wall

Abstract

A retaining wall installation process for earth and water retaining wall, first step starting from preparing precast reinforced concrete heavy duty retaining wall ( 1 ) on the ground, inserted horizontal rebars ( 12 ) at each fin ( 7 ) passed to the holes ( 8 ), connected mechanical couplers ( 14 ) only one end of horizontal rebars. Attached shuttle-platform ( 16 ) to precast reinforced concrete heavy duty retaining wail ( 1 ). Then lift up to installed the wall at construction site, put down the vertical rebars ( 15 ) connected to the lower vertical rebars by using mechanical couplers ( 14 ), tie vertical rebars to horizontal rebars, then closed the vertical cavities ( 24 ) by using panel closer ( 28 ) and poured fresh concrete ( 29 ). After final setting time, removed shuttle-platform down to the ground.

1 . The installation process for precast reinforced concrete heavy duty retaining wall comprising:
 precast reinforced concrete heavy duty retaining wall, comprising a substantial length and height are square wall panel, having notch for male Interlocking, the right surface, the left surface, and the lower surface, having grooves, a groove of lower surface should be seated on the notch male Interlocking firmly. the right hand side having four fin, homogeneous with wall panel, each fin having several hole, using for inserted horizontal rebars, the right hand side of each fin having regular octagon column, which homogeneous with fins, the center of upper surface of outer left and outer right of regular octagon columns, having protrude male Interlocking, and the center of lower surface having female Interlocking, should be worn to protrude male Interlocking firmly.   
     
     
         2 . The precast reinforced concrete heavy duty retaining wall of  claim 1 , wherein said the installation process, the first step began on the ground by preparing the horizontal rebars, length of them are equal to the length of precast reinforced concrete heavy duty retaining wall, inserted horizontal rebars passing to the holes of each fin, should be laid not less than three layers, and inserted a pair of washer passed to the horizontal rebars, attached in opposite sides of each fin , welded between washer to horizontal rebars, connected mechanical couplers only one end of each horizontal rebar. 
     
     
         3 . The precast retaining wall in  claim 1 , wherein said having shuttle-platform attached to precast reinforced concrete heavy duty retaining wall at the rear face panels of each regular octagon column, fasten bolts not less than four points at each rear face panel, and connected attaching Assy, to four steel channels. 
     
     
         4 . The precast retaining wall in  claim 3 , wherein said preparing to lift up precast reinforced concrete heavy duty retaining wall by using multi-leg webbings, and at the end of webbings having eye slip hook, clamps to a pair of upper most of horizontal rebars in opposite side between fin, then lift up to installed the wall at the construction site. 
     
     
         5 . The precast retaining wall of  claim 3 , wherein said lift down precast retaining wall to seated on the foundation without shuttle-platform, the foundation having straight curb. Put down the vertical rebars from the upper matching with lower protrude rebars, connected by using mechanical couplers, and tie vertical rebars to horizontal rebars by using tying machine. 
     
     
         6 . The precast retaining wall of  claim 5 , wherein said second precast reinforced concrete heavy duty retaining wall, lifted down to seated adjacent to the first precast retaining wall, connected each horizontal rebars by using mechanical couplers, fill in grout to the narrow hole, put the vertical rebars down to connected to the lower vertical rebars by using mechanical couplers, closed the vertical cavity by using panel closer, and poured fresh concrete to each vertical cavity of precast retaining wall, after final setting time, removed each panel closer , took out shuttle-platform, and lift down to the ground. 
     
     
         7 . The precast retaining wall of  claim 6 , wherein said the vertical cavity arising from connections between double precast reinforced concrete heavy duty retaining wall in row, should be installed steel reinforcements column, and the position of steel reinforcement column, should be connected tie-precast reinforced concrete beam, connected between double walls in opposite sides. 
     
     
         8 . The precast retaining wall of  claim 7 , wherein said the installation of tie rod assembly should be stretching between double walls of precast retaining wall, tie rod assembly comprising (Number 1) internal RH thread rod, having two pieces embedded in a pair of rear face panel in opposite sides, left side of (Number 1) internal RH thread rod, having (Number 2) deform bar, the right end and left end of deform bar are RH threaded, connected to (Number 1) internal RH thread rod, and the left end connected to the (Number 3) turn buckle, the left hand of turn buckle is (Number 4) deform bar, which is the right end is LH thread connected to turn buckle and the left end is RH threaded connected to the last (Number 1) internal RH thread rod. 
     
     
         9 . The precast retaining wall of  claim 3 , wherein said shuttle-platform consist of plurality of steel structure, the length of Shuttle-platform not more than the length of precast reinforced concrete heavy duty retaining wall, the high from first floor to second floor not less than two thirds of length, the floors are none metallic material, the high of Shuttle-platform not included the attaching assembly, is equal to the high of precast reinforced concrete heavy duty retaining wall, the width of Shuttle-platform is not less than two thirds of height, having stair located at the center of length, lifting point having four points on the hand rail of second floor, upper of steel channels of Shuttle-platform, connected with attaching assembly using for pressed the area on the upper surface of regular octagon columns at four places.