| 摘要 |
A self-reliance retaining wall construction method using early strength polymer modified concrete and earth anchors with tensile force is provided to lower down the cost and to have excellent efficiency, to cut down the cost of construction and to minimize environmental disruption. A self-reliance retaining wall construction method using early strength polymer modified concrete and earth anchors with tensile force comprises the steps of: calculating the angle and length of an earth anchor; and constructing a main body(10) of a retaining wall(100) by placing and curing an early strength polymer modified concrete composition formed by mixing 14~16 weight percent cement binder, 41~49 weight percent fine aggregate, 30~32 weight percent coarse aggregate, 2.7~4.5 weight percent water, 4~6 weight percent acryl modified polymer and 0.3~0.5 weight percent water reducing agent in multistage, and installing the earth anchors. The main body of the retaining wall comprises the steps of: constructing a one-stage main body(11) of a retaining wall by installing a form on the ground, placing and curing the early strength polymer modified concrete composition in the form and filling up with back-filling materials, and then installing a one-stage anchor(21) with tensile force of 0%(S21); installing a form on the one-stage main body of a retaining wall, placing the early strength polymer modified concrete composition in the form and filling up with back-filling materials, and installing a two-stage anchor(22), and tensing the one-stage anchor with tensile force of 100% and the two-stage anchor with tensile force of 70%(S22); installing a form on the two-stage main body of a retaining wall, placing the early strength polymer modified concrete composition in the form and filling up with back-filling materials, and installing a three-stage anchor(23), and tensing the one-stage anchor with tensile force of 100%, the two-stage anchor with tensile force of 100% and the tree-stage anchor with tensile force of 50%(S23); and re-tensing the one-stage anchor and the two-stage anchor, and tensing the uppermost anchor with tensile force of 50%. |
