Detection of anti-seepage effect of building stress wall structure based on transient Rayleigh surface wave method
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GMGDA 2019
Detection of anti-seepage effect of building stress wall structure based on transient Rayleigh surface wave method Bin Liu 1,2 & Xiugen Jiang 3 Received: 16 April 2020 / Accepted: 30 July 2020 / Published online: 19 August 2020 # Saudi Society for Geosciences 2020
Abstract Aiming at the problem that the traditional core drilling detection method has certain damage to the impervious body, and the detection points are limited, which leads to the limitation of the evaluation results; this paper proposes a detection method of seepage control effect of building stress wall structure based on transient Rayleigh surface wave method. The wave velocity of Rayleigh wave under plane stress is obtained by combining wave equation with plane stress. Under the three boundary conditions, it is theoretically feasible to detect the cutoff wall with transient Rayleigh surface wave technique. Therefore, based on the transient Rayleigh surface wave theory, the 24 channel broadband signal input channel and the minisis24 integrated engineering detector with advanced computer are used as the carrier to detect the anti-seepage effect of the stress wall structure. The practical engineering test shows that the permeability coefficient of the wall measured by this method is in good agreement with the core drilling method, and it is a reliable non-destructive testing method for wall anti-seepage. Keywords Transient . Rayleigh surface wave method . Elasticity . Building stress wall . Anti-seepage . Detection . Core drilling method . Ground penetrating radar method
Introduction The anti-seepage project is an underground concealed project. The detection and evaluation of engineering quality and antiseepage degree are a complex task, and the corresponding detection technology is still developing (Cherry et al. 2018). Since the 1950s, anti-seepage technology has begun to be applied to water conservancy projects. In 1958, it was first applied to the construction of Yuezikou Reservoir in Shandong Province, China. After more than 60 years of development, the application areas of anti-seepage walls, wall This article is part of the Topical Collection on Geological Modeling and Geospatial Data Analysis * Xiugen Jiang [email protected] 1
Water Conservancy Project & Civil Engineering College, Tibet Agriculture & Animal Husbandry University, Nyingchi 860000, China
2
School of Architecture, University of Florida, Gainesville, FL 33068, USA
3
College of Water Resources & Civil Engineering, China Agricultural University, Peking 100083, China
depth, structural type, wall materials, construction technology, construction technology, etc. have all made rapid progress. It played an important role in the construction of water conservancy and hydropower projects in China (Lin and Ashlock 2017; Benech et al. 2017). At present, the detection method of the construction quality of the anti-seepage wall mainly adopts the drilling sampling, the penetration test, and the routine indoor test and occasionally adopts the semi-destructive static penetration
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