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Construction method for anti-sliding structure of fill high slope
The invention relates to a construction method of an anti-sliding structure of a fill high slope, which comprises the following steps: arranging a plurality of layers of drainage reinforcement cages in a fill area to be connected and anchored with anti-sliding piers in undisturbed soil or a rock stratum according to a mechanism that the shear strength of the fill high slope is reduced by rainstorm flood infiltrating into a soil body and unstable landslide is caused by water flow scouring; the dual functions of draining accumulated water in the soil body and balancing the horizontal thrust of the soil body in the filling area are achieved; a T-shaped slope toe structure is formed by the anti-sliding wall at the slope bottom and the concrete-poured bottom plate, so that the anti-overturning capacity of the anti-sliding wall is improved; and introducing a filling area shallow layer landslide safety coefficient and a deep layer landslide safety coefficient penetrating through the filling area and the undisturbed soil area, and respectively checking and calculating the anti-sliding stability of the local part of the slope shallow layer and the whole deep layer of the slope. The method has the advantages that differential settlement of a fill foundation, ground surface cracks and ground surface rainwater infiltration are reduced, potential landslide surface development is prevented, the stability of the high slope is guaranteed in extreme rainstorm weather, and compared with a common arc sliding method and the like, the stress mechanism is clearer, and the calculation method is simpler.
本发明涉及一种填方高边坡抗滑结构施工方法,包括根据填方高边坡由暴雨洪水渗入土体降低其抗剪强度及水流冲刷导致失稳滑坡机理,在填方区设置多层排水钢筋笼与原状土或岩层中抗滑墩连接锚固,实现疏干土体中积水和平衡填方区土体水平推力双重功能;坡底的抗滑墙与混凝土浇筑的底板组成“T型”坡脚结构,提高抗滑墙抗倾覆能力;引入填方区浅层滑坡安全系数、贯穿填方区和原状土区深层滑坡安全系数,分别验算边坡浅层局部和深层整体的抗滑稳定性。本发明的有益效果在于:减少填方地基不均匀沉降和地表裂缝以及地表雨水入渗,阻止潜在滑坡面发展,在极端暴雨天气下保证高边坡的稳定性,与常用的圆弧滑动法等相比受力机理更加明确,计算方法更加简单。
Construction method for anti-sliding structure of fill high slope
The invention relates to a construction method of an anti-sliding structure of a fill high slope, which comprises the following steps: arranging a plurality of layers of drainage reinforcement cages in a fill area to be connected and anchored with anti-sliding piers in undisturbed soil or a rock stratum according to a mechanism that the shear strength of the fill high slope is reduced by rainstorm flood infiltrating into a soil body and unstable landslide is caused by water flow scouring; the dual functions of draining accumulated water in the soil body and balancing the horizontal thrust of the soil body in the filling area are achieved; a T-shaped slope toe structure is formed by the anti-sliding wall at the slope bottom and the concrete-poured bottom plate, so that the anti-overturning capacity of the anti-sliding wall is improved; and introducing a filling area shallow layer landslide safety coefficient and a deep layer landslide safety coefficient penetrating through the filling area and the undisturbed soil area, and respectively checking and calculating the anti-sliding stability of the local part of the slope shallow layer and the whole deep layer of the slope. The method has the advantages that differential settlement of a fill foundation, ground surface cracks and ground surface rainwater infiltration are reduced, potential landslide surface development is prevented, the stability of the high slope is guaranteed in extreme rainstorm weather, and compared with a common arc sliding method and the like, the stress mechanism is clearer, and the calculation method is simpler.
本发明涉及一种填方高边坡抗滑结构施工方法,包括根据填方高边坡由暴雨洪水渗入土体降低其抗剪强度及水流冲刷导致失稳滑坡机理,在填方区设置多层排水钢筋笼与原状土或岩层中抗滑墩连接锚固,实现疏干土体中积水和平衡填方区土体水平推力双重功能;坡底的抗滑墙与混凝土浇筑的底板组成“T型”坡脚结构,提高抗滑墙抗倾覆能力;引入填方区浅层滑坡安全系数、贯穿填方区和原状土区深层滑坡安全系数,分别验算边坡浅层局部和深层整体的抗滑稳定性。本发明的有益效果在于:减少填方地基不均匀沉降和地表裂缝以及地表雨水入渗,阻止潜在滑坡面发展,在极端暴雨天气下保证高边坡的稳定性,与常用的圆弧滑动法等相比受力机理更加明确,计算方法更加简单。
Construction method for anti-sliding structure of fill high slope
一种填方高边坡抗滑结构施工方法
TANG MENGXIONG (author) / LI BO (author) / HU HESONG (author) / LIU CHUNLIN (author) / LING ZAO (author) / SU DINGLI (author)
2025-01-03
Patent
Electronic Resource
Chinese
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