Uniting Method of Temporary earth wall with basement exterior Wall using Couplers and Bolts.

摘要

PURPOSE: A construction method for integrating a temporary earth retaining wall with a basement exterior wall using couplers and bolts is provided to improve the space utilization of a basement by integrating a cast-in-place concrete pile with a basement exterior wall. CONSTITUTION: A construction method for integrating a temporary earth retaining wall with a basement exterior wall using couplers and bolts is as follows. An H-pile(1) of a cast-in-place concrete pile(2) and a reinforcement cage are manufactured. Coupler bearing plates(99) with the same curvature as a tie bar are welded to the outer sides of two main bars of the reinforcement cage. Couplers(6) are welded to the flange of the H-pile and the coupler bearing plates. Holes formed in the couplers are blocked using temporary stoppers(7), and the H-steel of the H-pile and the reinforcement cage are inserted into a borehole. Concrete is placed in the borehole. When the surface of a temporary earth retaining wall is exposed to the outside during an excavation work, the temporary stoppers are removed from the couplers, and bolts are coupled to the exposed bolt holes. Reinforcing bars are arranged on a basement exterior wall, and a form is installed thereon. Concrete is placed in the form.