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 The solution of design, construction and protecting high slope of Hydropower works
Tác giả hoặc Nhóm tác giả: Le Nguyen Quoc Viet - Do Huu Dao
Nơi đăng: VietNam-France International Conference: Safety of small Dams and Dikess; Số: ISBN: 978-604-82-1322-0;Từ->đến trang: 95-104;Năm: 2014
Lĩnh vực: Kỹ thuật; Loại: Bài báo khoa học; Thể loại: Quốc tế
TÓM TẮT
ABSTRACT: The paper presents the solutions of design and construction to protect slope stability for Huydropower Song Bung 4A - Quang nam Province. The slope is high 130 meters, solution designed first to protect rock slope by steel grid with 4mm diameter, steel anchor 6mm diameter, concrete spraying flakes 10cm 20Mpa strength. In constructing, there is the diference on the geology suvey, such as: layered rock, cracked up, peeled pieces. Many soil mass on rock slope with 10-20m thick had slipped on the slide between rocks and soil during construction. Solution designed adjustable to reinforce rock slope stability during construction by steel anchor 32mm diameter and combine and sofcrete on steel grid 4mm diameter against rock falls in the construction process to enhance stability. Using Slope software to calculation sople stability for 05 locations and Factor scale from 1.203 to 1.542. The implementation of phase construction in combination spray concrete solution on surface has brought efficiency in technical and progress. The anchor static pull out tests have been done and the tensile force reach to 164.1kN ater 14 days. Keywords: Hydropower, slope, soil mass, geology, anchor, slip sline.
ABSTRACT
ABSTRACT: The paper presents the solutions of design and construction to protect slope stability for Huydropower Song Bung 4A - Quang nam Province. The slope is high 130 meters, solution designed first to protect rock slope by steel grid with 4mm diameter, steel anchor 6mm diameter, concrete spraying flakes 10cm 20Mpa strength. In constructing, there is the diference on the geology suvey, such as: layered rock, cracked up, peeled pieces. Many soil mass on rock slope with 10-20m thick had slipped on the slide between rocks and soil during construction. Solution designed adjustable to reinforce rock slope stability during construction by steel anchor 32mm diameter and combine and sofcrete on steel grid 4mm diameter against rock falls in the construction process to enhance stability. Using Slope software to calculation sople stability for 05 locations and Factor scale from 1.203 to 1.542. The implementation of phase construction in combination spray concrete solution on surface has brought efficiency in technical and progress. The anchor static pull out tests have been done and the tensile force reach to 164.1kN ater 14 days. Keywords: Hydropower, slope, soil mass, geology, anchor, slip sline.
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