Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for improving and reinforcing loess fill slope foundation
The invention relates to a loess fill slope foundation improvement and reinforcement method. The method comprises the following steps: (1) determining the optimal water content and the maximum dry density of coal ash improved loess in an engineering site; (2) static-pressure sample preparation; (3) determining the optimal doping ratio of the fly ash through an indoor test; (4) the slope is divided into three parts including a top 0.5-1 H part, a middle 0.3-0.5 H part and a bottom 0-0.3 H part; (5) treatment measures of a filling and digging combined surface; (6) performing reinforcement treatment on the fill area; (7) rib material lap joint treatment measures are taken; (8) a reinforced area building foundation replacement filling method: when a building exists at the top of a slope, replacing filling is performed on a soil body within the depth range D4 of the bottom of a building foundation according to the proportion of the coal ash improved loess obtained in the step (3), and the replacement filling width D3 exceeds 1/4 of the width of the bottom surface of the foundation; and (9) determining the distance between the slope crest building and the filling and digging combined surface. The method is low in engineering cost, environment-friendly and low-carbon, and meets the deformation requirement of the loess fill slope.
本发明涉及一种黄土填方边坡地基改良与加固方法，该方法包括以下步骤：⑴确定工程场地粉煤灰改良黄土最优含水率与最大干密度；⑵静压法制样；⑶室内试验确定粉煤灰最优掺入比；⑷将边坡分为顶部0.5~1H、中部0.3~0.5H与底部0~0.3H三个部分；⑸填挖结合面的处理措施；⑹填方区加筋处理方法；⑺筋材搭接处理措施；⑻加筋区建筑地基换填方法：坡顶存在建筑时，对建筑基础底部D4深度范围内土体采用步骤⑶得到的粉煤灰改良黄土配比进行换填，换填的宽度D3超出基础底面宽度的1/4；⑼坡顶建筑距填挖结合面的距离确定方法。本发明工程成本低、环保低碳、满足黄土填方边坡变形要求。
Method for improving and reinforcing loess fill slope foundation
The invention relates to a loess fill slope foundation improvement and reinforcement method. The method comprises the following steps: (1) determining the optimal water content and the maximum dry density of coal ash improved loess in an engineering site; (2) static-pressure sample preparation; (3) determining the optimal doping ratio of the fly ash through an indoor test; (4) the slope is divided into three parts including a top 0.5-1 H part, a middle 0.3-0.5 H part and a bottom 0-0.3 H part; (5) treatment measures of a filling and digging combined surface; (6) performing reinforcement treatment on the fill area; (7) rib material lap joint treatment measures are taken; (8) a reinforced area building foundation replacement filling method: when a building exists at the top of a slope, replacing filling is performed on a soil body within the depth range D4 of the bottom of a building foundation according to the proportion of the coal ash improved loess obtained in the step (3), and the replacement filling width D3 exceeds 1/4 of the width of the bottom surface of the foundation; and (9) determining the distance between the slope crest building and the filling and digging combined surface. The method is low in engineering cost, environment-friendly and low-carbon, and meets the deformation requirement of the loess fill slope.
本发明涉及一种黄土填方边坡地基改良与加固方法，该方法包括以下步骤：⑴确定工程场地粉煤灰改良黄土最优含水率与最大干密度；⑵静压法制样；⑶室内试验确定粉煤灰最优掺入比；⑷将边坡分为顶部0.5~1H、中部0.3~0.5H与底部0~0.3H三个部分；⑸填挖结合面的处理措施；⑹填方区加筋处理方法；⑺筋材搭接处理措施；⑻加筋区建筑地基换填方法：坡顶存在建筑时，对建筑基础底部D4深度范围内土体采用步骤⑶得到的粉煤灰改良黄土配比进行换填，换填的宽度D3超出基础底面宽度的1/4；⑼坡顶建筑距填挖结合面的距离确定方法。本发明工程成本低、环保低碳、满足黄土填方边坡变形要求。
Method for improving and reinforcing loess fill slope foundation
一种黄土填方边坡地基改良与加固方法
WANG LILI (Autor:in) / SUN WEN (Autor:in) / ZHONG XIUMEI (Autor:in) / GUO HAITAO (Autor:in)
02.01.2024
Patent
Elektronische Ressource
Chinesisch
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