Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prestressed steel bar structure for underground plant rock wall crane beam support
The invention discloses a prestressed steel bar structure for underground plant rock wall crane beam support. The prestressed steel bar structure comprises an anchor pier head, a tensioning section and an anchoring section, wherein a steel bar penetrates through the anchor pier head, the tensioning section and the anchoring section, a drill hole is formed, the steel bar is arranged in the drill hole in a full-length mode, and the steel bar located outside the drill hole is fixedly connected with the anchor pier head; the steel bar in the tensioning section is sequentially wrapped with factory pre-grouting, a plastic corrugated sleeve, a plastic smooth sleeve and on-site cement grouting from inside to outside, and the steel bar in the anchoring section is sequentially wrapped with factory pre-grouting, a plastic corrugated sleeve and on-site cement grouting from inside to outside. The problems that under the soft rock geological condition, a rock wall crane beam rock platform is difficult to form, rock mass creeps for a long time, and that the rock wall crane beam and side wall rock mass form an overall stress structure through a support mode of a common mortar anchor rod is difficult to guarantee can be effectively solved, and a hydropower engineering underground plant rock wall crane can safely and stably operate under the soft rock geological condition.
本发明公开了一种用于地下厂房岩壁吊车梁支护的预应力钢棒结构，包括贯穿有钢棒的锚墩头、张拉段与锚固段，并形成内部通长布置有钢棒的钻孔，且位于钻孔外部的钢棒与锚墩头固定连接；所述张拉段内的钢棒由内而外依次包裹有工厂预灌浆、塑料波纹套管、塑料光滑套管与现场水泥灌浆，所述锚固段内的钢棒由内而外依次包裹有工厂预灌浆、塑料波纹套管与现场水泥灌浆。可有效解决软岩地质条件下岩壁吊车梁岩台难以成形、岩体长期蠕变以及普通砂浆锚杆的支护形式难以保证岩壁吊车梁和边墙岩体形成整体的受力结构等问题，使得软岩地质条件下水电工程地下厂房岩壁吊车能够安全稳定运行。
Prestressed steel bar structure for underground plant rock wall crane beam support
The invention discloses a prestressed steel bar structure for underground plant rock wall crane beam support. The prestressed steel bar structure comprises an anchor pier head, a tensioning section and an anchoring section, wherein a steel bar penetrates through the anchor pier head, the tensioning section and the anchoring section, a drill hole is formed, the steel bar is arranged in the drill hole in a full-length mode, and the steel bar located outside the drill hole is fixedly connected with the anchor pier head; the steel bar in the tensioning section is sequentially wrapped with factory pre-grouting, a plastic corrugated sleeve, a plastic smooth sleeve and on-site cement grouting from inside to outside, and the steel bar in the anchoring section is sequentially wrapped with factory pre-grouting, a plastic corrugated sleeve and on-site cement grouting from inside to outside. The problems that under the soft rock geological condition, a rock wall crane beam rock platform is difficult to form, rock mass creeps for a long time, and that the rock wall crane beam and side wall rock mass form an overall stress structure through a support mode of a common mortar anchor rod is difficult to guarantee can be effectively solved, and a hydropower engineering underground plant rock wall crane can safely and stably operate under the soft rock geological condition.
本发明公开了一种用于地下厂房岩壁吊车梁支护的预应力钢棒结构，包括贯穿有钢棒的锚墩头、张拉段与锚固段，并形成内部通长布置有钢棒的钻孔，且位于钻孔外部的钢棒与锚墩头固定连接；所述张拉段内的钢棒由内而外依次包裹有工厂预灌浆、塑料波纹套管、塑料光滑套管与现场水泥灌浆，所述锚固段内的钢棒由内而外依次包裹有工厂预灌浆、塑料波纹套管与现场水泥灌浆。可有效解决软岩地质条件下岩壁吊车梁岩台难以成形、岩体长期蠕变以及普通砂浆锚杆的支护形式难以保证岩壁吊车梁和边墙岩体形成整体的受力结构等问题，使得软岩地质条件下水电工程地下厂房岩壁吊车能够安全稳定运行。
Prestressed steel bar structure for underground plant rock wall crane beam support
一种用于地下厂房岩壁吊车梁支护的预应力钢棒结构
YANG SONG (Autor:in) / SUN JINHUI (Autor:in) / WU XIYAN (Autor:in) / XU WENXIAN (Autor:in) / JIANG LEI (Autor:in) / SHAO GUOWEI (Autor:in)
07.01.2022
Patent
Elektronische Ressource
Chinesisch
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