| CPC E02D 29/0266 (2013.01) [E02D 29/0233 (2013.01); E02D 2600/30 (2013.01)] | 8 Claims |
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1. A two-row self-supporting earth retaining wall structure comprising:
a plurality of rear piles spaced a predetermined interval from backfill soil while adjacent to the backfill soil and installed vertically with respect to the ground;
a rear waling member disposed adjacent to the plurality of rear piles in a direction perpendicular to the plurality of rear piles at an upper portion of the ground, which is first-stage excavated, after the first-stage excavation is performed to a predetermined depth at an opposite side of the backfill soil;
a first guide bracket coupled to the rear waling member and configured to change a wiring direction of a plurality of first tensile materials to a direction perpendicular to a longitudinal direction of the rear pile so that the first tensile materials are guided to pass through the rear waling member;
a plurality of front piles spaced a predetermined interval from the plurality rear piles and installed vertically with respect to the first-stage excavated ground;
a first front waling member disposed adjacent to the plurality of front piles in a direction perpendicular to the plurality of front piles at an upper side of the first-stage excavated ground;
a second guide bracket coupled to the first waling member to guide the plurality of first tensile materials so as to pass through the first waling member and to fix the first tensile materials that passes through the first front waling member;
a second front waling member disposed adjacent to the plurality of front piles in a direction perpendicular to the plurality of front piles at an upper side of the second-stage excavated ground after the second-stage excavation is completed to a depth deeper than that of the first-stage excavation to a lower side of the first front waling member in a state in which one end of each of the first tensile materials is tensioned; and
a third guide bracket coupled to the second front waling member to change a wiring direction of a plurality of second tensile materials to a direction perpendicular to a longitudinal direction of each of the front piles so that the second tensile materials are guided to pass through the second front waling member,
wherein each of the plurality of first tensile materials has one end, which passes through the second guide bracket to protrudes to a front surface of the second guide bracket, and the other end fixed to a lower portion of the ground, and
the one end of each of the first tensile materials is tensioned in the state in which the other end of each of the first tensile materials is fixed to the lower portion of the ground,
wherein the rear waling member comprises:
an upper waling member; and
a lower waling member disposed to be spaced a predetermined interval from the upper waling member at a lower side of the upper waling member,
wherein the first guide bracket comprises:
a pair of side plates spaced a predetermined interval from each other between the upper waling member and the lower waling member to support the upper waling member and the lower waling member, respectively;
a first vertical plate disposed perpendicular to the pair of side plates and provided with a rotating plate protruding on one surface thereof to change the wiring direction of the first tensile material to the direction perpendicular to the longitudinal direction of the rear pile; and
a second vertical plate disposed parallel to the first vertical plate so that the first tensile material is guided toward the first front waling member.
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