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Pre-stressed anchor cable combined ultrahigh composite reinforced soil abutment and construction method thereof
The invention discloses a pre-stressed anchor cable combined ultrahigh composite reinforced soil abutment and a construction method thereof. The ultrahigh composite reinforced soil abutment is structurally provided with multiple stages of abutment bodies from top to bottom. Geogrids with equal intervals are laid on each stage of abutment, an inverted filter layer formed by piling up geogrids whichare filled with gravels and wrapped by geotextile is arranged at the side close to a panel, a reinforced concrete panel is arranged outside the inverted filter layer, a reinforced concrete horizontalcushion layer is arranged in the lower portion of the panel of each stage of abutment and buried for a certain depth, and a concrete bent cap is arranged in the upper portion. According to the composite reinforced soil abutment, pre-stressed anchor cables anchored into the mountain rock stratum are combined with the lowest-stage abutment, the overall stability and the anti-overturning capacity ofan unreinforced soil body and the whole reinforced body structure are greatly improved, and the constraint of the pre-stressed anchor cables on the retaining wall body can further effectively resistthe bending moment of lateral soil pressure from backfill behind the wall on a bottom-layer panel of the abutment.
本发明公开了与预应力锚索结合的超高复合加筋土桥台及其施工方法,该结构为超高加筋土桥台,至上而下有着多级桥台。各级桥台都铺设间隔相等的土工格栅,靠近面板一侧设有由装有碎石并被土工布包裹的的土工宾格堆砌形成的反滤层,反滤层外部设钢筋混凝土面板,各级桥台的面板下部设钢筋混凝土水平垫层并埋置一定深度,上部设有混凝土盖梁;该结构为复合加筋土桥台,将锚入山体岩层的预应力锚索与最下级桥台的复合,极大提升了未加筋土体和整个加筋体结构的整体稳定性与抗倾覆能力,预应力锚索对挡墙墙体的约束还可以有效抵抗来自墙后回填料的侧向土压力对桥台底层面板的弯矩。
Pre-stressed anchor cable combined ultrahigh composite reinforced soil abutment and construction method thereof
The invention discloses a pre-stressed anchor cable combined ultrahigh composite reinforced soil abutment and a construction method thereof. The ultrahigh composite reinforced soil abutment is structurally provided with multiple stages of abutment bodies from top to bottom. Geogrids with equal intervals are laid on each stage of abutment, an inverted filter layer formed by piling up geogrids whichare filled with gravels and wrapped by geotextile is arranged at the side close to a panel, a reinforced concrete panel is arranged outside the inverted filter layer, a reinforced concrete horizontalcushion layer is arranged in the lower portion of the panel of each stage of abutment and buried for a certain depth, and a concrete bent cap is arranged in the upper portion. According to the composite reinforced soil abutment, pre-stressed anchor cables anchored into the mountain rock stratum are combined with the lowest-stage abutment, the overall stability and the anti-overturning capacity ofan unreinforced soil body and the whole reinforced body structure are greatly improved, and the constraint of the pre-stressed anchor cables on the retaining wall body can further effectively resistthe bending moment of lateral soil pressure from backfill behind the wall on a bottom-layer panel of the abutment.
本发明公开了与预应力锚索结合的超高复合加筋土桥台及其施工方法,该结构为超高加筋土桥台,至上而下有着多级桥台。各级桥台都铺设间隔相等的土工格栅,靠近面板一侧设有由装有碎石并被土工布包裹的的土工宾格堆砌形成的反滤层,反滤层外部设钢筋混凝土面板,各级桥台的面板下部设钢筋混凝土水平垫层并埋置一定深度,上部设有混凝土盖梁;该结构为复合加筋土桥台,将锚入山体岩层的预应力锚索与最下级桥台的复合,极大提升了未加筋土体和整个加筋体结构的整体稳定性与抗倾覆能力,预应力锚索对挡墙墙体的约束还可以有效抵抗来自墙后回填料的侧向土压力对桥台底层面板的弯矩。
Pre-stressed anchor cable combined ultrahigh composite reinforced soil abutment and construction method thereof
与预应力锚索结合的超高复合加筋土桥台及其施工方法
DONG YANLI (Autor:in) / LI JIANDA (Autor:in) / ZHAO ZHIYI (Autor:in) / GUO PENGFEI (Autor:in) / GAO HUIFANG (Autor:in) / PEI WEIPENG (Autor:in) / ZHANG MENGQI (Autor:in) / HAN YUNSHAN (Autor:in) / ZHENG LIFENG (Autor:in) / ZHANG XIAOSHUANG (Autor:in)
28.07.2020
Patent
Elektronische Ressource
Chinesisch
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