Luotian Reservoir upgrading and renovation project dam foundation curtain grouting design

Abstract

As an important node in the Pearl River Delta water resource allocation project, the safe operation of Luotian Reservoir is crucial for ensuring regional water supply safety and flood control system. With the passage of time and the improvement of functional standards, reservoir dams are facing problems such as high permeability of rock and soil in the dam foundation, leading to serious leakage. In order to improve the safety and stability of the dam, a systematic design scheme for dam foundation curtain grouting was proposed. Taking Luotian Reservoir as an example, the engineering overview, existing problems, leakage estimation and analysis, curtain grouting design, construction technical requirements, and common problem handling of Luotian Reservoir are introduced in detail. After the implementation of the designed dam foundation curtain grouting scheme, the leakage of the Luotian Reservoir dam was significantly improved, and the effect was significant, achieving the goal of anti-seepage reinforcement. The effectiveness and feasibility of the dam foundation curtain grouting scheme were verified. The proposed design scheme provides reference and inspiration for anti-seepage reinforcement engineering of similar dangerous reservoir dams.

Keywords

dangerous reservoirs / dam reinforcement / dam foundation curtain grouting / anti seepage design / Luotian Reservoir