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A platform for research: civil engineering, architecture and urbanism
Deep foundation pit pre-tensioning method prestress supporting structure and construction method thereof
The invention discloses a deep foundation pit pre-tensioning method prestress supporting structure and a construction method thereof. The deep foundation pit pre-tensioning method prestress supporting structure comprises a protection wall, the protection wall is composed of two arc ends and a plurality of arc sections, openings are formed in the opposite sides of the two arc ends, and first bent parts bent outwards are arranged on the side edges of the openings; the arc sections are divided into two rows which are opposite in position, each row is provided with a plurality of first arc sections and second arc sections which are alternately arranged, second bent parts which are bent inwards are arranged at the two ends of the first arc sections, and third bent parts which are bent outwards are arranged at the two ends of the second arc sections; the first arc sections and the adjacent second arc sections are clamped and fixed, and the first arc sections located on the two sides are clamped and fixed with the first bent parts on the arc ends through the second bent parts; and prestress tendons penetrate through the whole protection wall through the through holes. The lateral resistance of the land is improved through the deep foundation pit pre-tensioning method prestress supporting structure, and the overall stress of the supporting structure is kept stable; and meanwhile, the water stopping and soil retaining effects are achieved, and the protection wall can be recycled.
本发明公开了一种深基坑先张法预应力支护结构及其施工方法，包括护壁，护壁由两个圆弧端和若干个弧形段组成，两个圆弧端相向一侧设有开口，开口的侧边上设有向外弯折的第一弯折部；所述弧形段分为位置相对的两排，每一排均具有多个交替设置的第一弧形段和第二弧形段，第一弧形段两端设有向内弯折的第二弯折部，第二弧形段两端设有向外弯折的第三弯折部；第一弧形段和相邻第二弧形段卡合固定，位于两侧的第一弧形段通过第二弯折部与圆弧端上的第一弯折部卡合固定；预应力筋通过通孔贯穿整个护壁。本发明通过深基坑先张法预应力支护结构来提高土地侧向抗力，支护结构整体受力保持稳定，同时起到止水挡土的作用，护壁可回收使用。
Deep foundation pit pre-tensioning method prestress supporting structure and construction method thereof
The invention discloses a deep foundation pit pre-tensioning method prestress supporting structure and a construction method thereof. The deep foundation pit pre-tensioning method prestress supporting structure comprises a protection wall, the protection wall is composed of two arc ends and a plurality of arc sections, openings are formed in the opposite sides of the two arc ends, and first bent parts bent outwards are arranged on the side edges of the openings; the arc sections are divided into two rows which are opposite in position, each row is provided with a plurality of first arc sections and second arc sections which are alternately arranged, second bent parts which are bent inwards are arranged at the two ends of the first arc sections, and third bent parts which are bent outwards are arranged at the two ends of the second arc sections; the first arc sections and the adjacent second arc sections are clamped and fixed, and the first arc sections located on the two sides are clamped and fixed with the first bent parts on the arc ends through the second bent parts; and prestress tendons penetrate through the whole protection wall through the through holes. The lateral resistance of the land is improved through the deep foundation pit pre-tensioning method prestress supporting structure, and the overall stress of the supporting structure is kept stable; and meanwhile, the water stopping and soil retaining effects are achieved, and the protection wall can be recycled.
本发明公开了一种深基坑先张法预应力支护结构及其施工方法，包括护壁，护壁由两个圆弧端和若干个弧形段组成，两个圆弧端相向一侧设有开口，开口的侧边上设有向外弯折的第一弯折部；所述弧形段分为位置相对的两排，每一排均具有多个交替设置的第一弧形段和第二弧形段，第一弧形段两端设有向内弯折的第二弯折部，第二弧形段两端设有向外弯折的第三弯折部；第一弧形段和相邻第二弧形段卡合固定，位于两侧的第一弧形段通过第二弯折部与圆弧端上的第一弯折部卡合固定；预应力筋通过通孔贯穿整个护壁。本发明通过深基坑先张法预应力支护结构来提高土地侧向抗力，支护结构整体受力保持稳定，同时起到止水挡土的作用，护壁可回收使用。
Deep foundation pit pre-tensioning method prestress supporting structure and construction method thereof
一种深基坑先张法预应力支护结构及其施工方法
LUO YUTING (author) / HU XIULIANG (author) / JIANG WANGWEI (author) / SANG PENGFEI (author) / XU ZHONGWEN (author) / YANG YUXIAO (author)
2021-11-16
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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