Study Of Quality Control And Evaluation Methods Of Earth Dam Reinforcement

There are a large number of reservoirs to be reinforced. As the government intensifying the reinforcement work, many dangerous reservoirs will be strengthened. As the reservoir seepage reinforcement of the complexity and hidden nature, controlling the strengthening quality and inspecting the reinforcement effect is particularly important. Some of the most commonly used control and detection methods often fail to get satisfactory results. It is the current weak links of the seepage reinforcement and need to be improved. Therefore, it has significant importance researching the seepage quality control and reinforcement effect control. This article includes the following contents:Take high pressure jet grouting for example, studied the quality control measures of the entire process of seepage strengthening, including the quality control during the preparing process before reservoir construction, as determining the construction parameters through experiment, arraying the observation facilities; the quality control during construction, as constructing the pilot hole for additional geological data, strictly control the amount of cement; and the quality control measures after construction, as surrounding well test, boreholing and sampling, piezometric tube test. Through quality control measures as surrounding well test, boreholing and sampling, piezometric tube test and seepage detection test, the results are satisfied. Through the strict quality control of the whole construction process, the overall construction has good effect.Take the background of one reservoir seepage reinforcement engineering; through the finite element analysis and experimental data analysis, the seepage strengthening effect was studies. Using SEEP/W software for finite element analysis, a two-dimensional numerical model was build to simulating the steady seepage under normal water level. Based on the measured value of piezometric level of the reservoir, the piezometric level hydrograph, the piezometric level relevant line and the phreatic line were drawn. Compared with the results of the Finite element analysis and the observed data, the results are satisfied. Through quality inspection, theoretical analysis and experimental data analysis, it can be determined that the reservoir seepage reinforcement effect is good.