Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for reinforcing asphalt core wall dam body located on deep covering layer
The invention discloses a method for reinforcing a dam body of an asphalt core wall dam located on a deep covering layer, which comprises the following steps of: excavating the surface layer of the covering layer to the elevation of the bottom of a concrete pedestal to form a steel-plastic bidirectional geogrid laying area, and forming an intersection area between the steel-plastic bidirectional geogrid laying area and a concrete pedestal foundation pit; pedestal concrete is poured, and the pedestal concrete and the steel-plastic two-way geogrid located in the pedestal are integrally formed; the steel-plastic two-way geogrids are continuously and upwards laid on the top face of the pedestal layer by layer, and the asphalt concrete core wall is synchronously constructed till dam body construction is completed; the concrete anti-seepage wall, the pedestal and the deep covering layer which are located in the deep covering layer are connected into a whole through the steel-plastic two-way geogrid. The capacity of an overall anti-seepage system composed of the asphalt core wall, the pedestal and the anti-seepage wall for resisting discordant deformation caused by large deformation of a deep covering layer due to dam body filling, water storage and earthquake loads can be remarkably improved, and the deep anti-sliding stability of the asphalt core wall dam located on the deep covering layer with the weak interlayer can be improved.
本发明公开了一种坐落在深厚覆盖层上的沥青心墙坝坝体加固方法，开挖覆盖层的表层至混凝土垫座底部高程形成钢塑双向土工格栅铺设区，钢塑双向土工格栅铺设区与混凝土垫座基坑之间存在交叉区，浇注垫座混凝土并与位于垫座内的钢塑双向土工格栅一体成型；在垫座顶面继续向上逐层铺设钢塑双向土工格栅并同步施工沥青混凝土心墙，直至坝体施工完成；本发明采用钢塑双向土工格栅将位于深厚覆盖层内的混凝土防渗墙、垫座和深厚覆盖层连接成一个整体，可显著改善沥青心墙‑垫座‑防渗墙构成的整体防渗体系抵抗坝体填筑、蓄水和地震荷载引起的深厚覆盖层大变形导致的不协调变形能力，且可提高坐落在存在软弱夹层的深厚覆盖层上沥青心墙坝深层抗滑稳定性。
Method for reinforcing asphalt core wall dam body located on deep covering layer
The invention discloses a method for reinforcing a dam body of an asphalt core wall dam located on a deep covering layer, which comprises the following steps of: excavating the surface layer of the covering layer to the elevation of the bottom of a concrete pedestal to form a steel-plastic bidirectional geogrid laying area, and forming an intersection area between the steel-plastic bidirectional geogrid laying area and a concrete pedestal foundation pit; pedestal concrete is poured, and the pedestal concrete and the steel-plastic two-way geogrid located in the pedestal are integrally formed; the steel-plastic two-way geogrids are continuously and upwards laid on the top face of the pedestal layer by layer, and the asphalt concrete core wall is synchronously constructed till dam body construction is completed; the concrete anti-seepage wall, the pedestal and the deep covering layer which are located in the deep covering layer are connected into a whole through the steel-plastic two-way geogrid. The capacity of an overall anti-seepage system composed of the asphalt core wall, the pedestal and the anti-seepage wall for resisting discordant deformation caused by large deformation of a deep covering layer due to dam body filling, water storage and earthquake loads can be remarkably improved, and the deep anti-sliding stability of the asphalt core wall dam located on the deep covering layer with the weak interlayer can be improved.
本发明公开了一种坐落在深厚覆盖层上的沥青心墙坝坝体加固方法，开挖覆盖层的表层至混凝土垫座底部高程形成钢塑双向土工格栅铺设区，钢塑双向土工格栅铺设区与混凝土垫座基坑之间存在交叉区，浇注垫座混凝土并与位于垫座内的钢塑双向土工格栅一体成型；在垫座顶面继续向上逐层铺设钢塑双向土工格栅并同步施工沥青混凝土心墙，直至坝体施工完成；本发明采用钢塑双向土工格栅将位于深厚覆盖层内的混凝土防渗墙、垫座和深厚覆盖层连接成一个整体，可显著改善沥青心墙‑垫座‑防渗墙构成的整体防渗体系抵抗坝体填筑、蓄水和地震荷载引起的深厚覆盖层大变形导致的不协调变形能力，且可提高坐落在存在软弱夹层的深厚覆盖层上沥青心墙坝深层抗滑稳定性。
Method for reinforcing asphalt core wall dam body located on deep covering layer
一种坐落在深厚覆盖层上的沥青心墙坝坝体加固方法
YAN ZUWEN (Autor:in) / LI HONGJUN (Autor:in) / ZHONG HONG (Autor:in) / KANG FEI (Autor:in) / XU ZEPING (Autor:in) / LI ZHIYUAN (Autor:in) / LIU SHIYUE (Autor:in) / LANG ZIFAN (Autor:in) / CHEN DONG (Autor:in)
24.02.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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