Earth and rockfill dam core wall soil layer permeability coefficient layer-by-layer superposition inversion method

• Main Authors: YU JIONGQI, JIANG YONGXING, JIN HUAHUI, YANG WEI, CHU GAOQIANG, ZHANG ZHEN, WU HUA'AN, YAO YONGXIN
• Format: Patent
• Language: Chinese; English
• Published: 03.08.2021
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses an earth and rockfill dam core wall soil layer permeability coefficient layer-by-layer superposition inversion method. According to the method,an actual dam body infiltration line is formed according to monitoring data of pressure measuring pipes and measuring weirs of an earth and rockfill dam body on the basis of different reservoir water levels; on the basis of a known dam body soil layer permeability coefficient, a theoretical calculation method is applied to perform layer-by-layer superposition inversion analysis on the seepage coefficient of an earth and rockfill dam seepage-proofing core wall from the low reservoir water level to the high reservoir water level, so that the aim of accurately layering to obtain the seepage coefficient of the earth and rockfill dam seepage-proofing core wall is achieved. The method is simple and reliable in principle and clear in treatment process, meets the current specification requirements, can accurately obtain the permeability coefficient at d