Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Self-stabilizing supporting structure for deep foundation pit
The invention discloses a deep foundation pit self-stabilizing type supporting structure which is composed of at least one row of fender posts, a coping plate fixedly arranged at the tops of the fender posts and inclined struts, and the inclined struts are fixedly connected with the fender posts and/or the coping plate. The inclined strut is composed of a front inclined strut and a rear inclined strut, and a plurality of self-stabilizing reinforcing pieces are fixedly arranged on the rear inclined strut or the fender post away from the center of the foundation pit. The self-stabilizing reinforcing piece is an auxiliary inclined strut fixedly connected to the surface, away from the center of the foundation pit, of the rear inclined strut, the size of the auxiliary inclined strut is smaller than that of the rear inclined strut, and an included angle of 90-120 degrees is formed between the auxiliary inclined strut and the rear inclined strut. The pressing top plate is a reinforced concrete pressing top plate with the thickness of 20 cm, and reinforcing steel bars in the pressing top plate are HPB300-grade reinforcing steel bars and HRB400-grade reinforcing steel bars. The self-stabilizing reinforcing piece is arranged on the outer side of the rear inclined strut or the fender post, the self weight of the soil body above the self-stabilizing reinforcing piece when the supporting structure tends to rotate is effectively utilized, deflection of the supporting structure is prevented, the anti-overturning effect is achieved, and the self-stabilizing effect is enhanced.
本发明公开了一种深基坑自稳式支护结构，由至少一排围护桩、固定设置在围护桩顶部的压顶板、斜撑构成，斜撑与围护桩和/或压顶板固定相连；斜撑由前斜撑和后斜撑构成，后斜撑或远离基坑中心的围护桩上固定设置若干个自稳增强件。自稳增强件为固定连接在后斜撑其远离基坑中心的表面上的辅助斜撑，辅助斜撑尺寸小于后斜撑的尺寸，辅助斜撑与后斜撑成90~120°的夹角。压顶板采用20cm厚钢筋混凝土压顶板，压顶板内的钢筋采用HPB300级钢筋与HＲB400级钢筋。本发明通过在后斜撑或围护桩的外侧上设置自稳增强件，有效利用支护结构在有转动趋势时的自稳增强件上方的土体的自重，阻止支护结构的偏转，起到抗倾覆的效果，起到加强自稳的效果。
Self-stabilizing supporting structure for deep foundation pit
The invention discloses a deep foundation pit self-stabilizing type supporting structure which is composed of at least one row of fender posts, a coping plate fixedly arranged at the tops of the fender posts and inclined struts, and the inclined struts are fixedly connected with the fender posts and/or the coping plate. The inclined strut is composed of a front inclined strut and a rear inclined strut, and a plurality of self-stabilizing reinforcing pieces are fixedly arranged on the rear inclined strut or the fender post away from the center of the foundation pit. The self-stabilizing reinforcing piece is an auxiliary inclined strut fixedly connected to the surface, away from the center of the foundation pit, of the rear inclined strut, the size of the auxiliary inclined strut is smaller than that of the rear inclined strut, and an included angle of 90-120 degrees is formed between the auxiliary inclined strut and the rear inclined strut. The pressing top plate is a reinforced concrete pressing top plate with the thickness of 20 cm, and reinforcing steel bars in the pressing top plate are HPB300-grade reinforcing steel bars and HRB400-grade reinforcing steel bars. The self-stabilizing reinforcing piece is arranged on the outer side of the rear inclined strut or the fender post, the self weight of the soil body above the self-stabilizing reinforcing piece when the supporting structure tends to rotate is effectively utilized, deflection of the supporting structure is prevented, the anti-overturning effect is achieved, and the self-stabilizing effect is enhanced.
本发明公开了一种深基坑自稳式支护结构，由至少一排围护桩、固定设置在围护桩顶部的压顶板、斜撑构成，斜撑与围护桩和/或压顶板固定相连；斜撑由前斜撑和后斜撑构成，后斜撑或远离基坑中心的围护桩上固定设置若干个自稳增强件。自稳增强件为固定连接在后斜撑其远离基坑中心的表面上的辅助斜撑，辅助斜撑尺寸小于后斜撑的尺寸，辅助斜撑与后斜撑成90~120°的夹角。压顶板采用20cm厚钢筋混凝土压顶板，压顶板内的钢筋采用HPB300级钢筋与HＲB400级钢筋。本发明通过在后斜撑或围护桩的外侧上设置自稳增强件，有效利用支护结构在有转动趋势时的自稳增强件上方的土体的自重，阻止支护结构的偏转，起到抗倾覆的效果，起到加强自稳的效果。
Self-stabilizing supporting structure for deep foundation pit
深基坑自稳式支护结构
ZHANG ZHONG (Autor:in) / TANG HAIYI (Autor:in) / JIANG AIGUO (Autor:in) / CHEN ZHIGUO (Autor:in) / WANG YUSHENG (Autor:in) / SON MI-TAE (Autor:in)
22.09.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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