A Real-Time Analysis and Feedback System for Quality Control of Dam Foundation Grouting Engineering

Zhong, Denghua; Yan, Fugen; Li, Mingchao; Huang, C. X.; Fan, Ke; Tang, Jian-Yuan

doi:10.1007/s00603-014-0686-6

Cited by 18 publications

(12 citation statements)

References 16 publications

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“…Secondly, to improve the diversity of the evaluation indicators, based on the real-time monitoring system of grouting engineering [35] and the existing conventional evaluation indicator system of the research group, the secondary permeability index (SPI) is introduced as an evaluation indicator and a five-indicator evaluation system is established: LU, SPI, V, RQD, and FFR. Foyo et al [36] believed that conventional experimental methods such as core drilling do not reflect the connectivity of the fractures and introduced the concept of SPI.…”

Section: Comprehensive Evaluation Methods Under Interval-valued Intuimentioning

confidence: 99%

“…Techniques such as core drilling, borehole television imaging, water-pressure tests, and acoustic-wave velocity tests were carried out from top to bottom 14 days after finishing curtain grouting. The development and application of a real-time monitoring system for grouting engineering can effectively collect information related to geophysical verification [35]. The comprehensive evaluation model was applied to four of the units (units [32][33][34][35] to determine the curtain-grouting efficiency, as shown in Figure 6.…”

Section: Data Collectionmentioning

confidence: 99%

“…The development and application of a real-time monitoring system for grouting engineering can effectively collect information related to geophysical verification [35]. The comprehensive evaluation model was applied to four of the units (units [32][33][34][35] to determine the curtain-grouting efficiency, as shown in Figure 6. The total number of verification boreholes in the four grouting units was 8, which included 175 grouting intervals, and all the verification holes were arranged on the curtain center line.…”

Section: Data Collectionmentioning

confidence: 99%

See 2 more Smart Citations

A Comprehensive Evaluation Model for Curtain Grouting Efficiency Assessment Based on Prospect Theory and Interval-Valued Intuitionistic Fuzzy Sets Extended by Improved D Numbers

et al. 2019

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Grouting-efficiency evaluation is a key element in grouting-construction control. However, most existing grouting-efficiency evaluation models do not consider the hesitation and bounded rationality of experts and have difficulty in handling the problem of incomplete decision-making information generated by experts. Furthermore, the diversity of the evaluation indicators used can be further improved. This study conducts a comprehensive evaluation model to address these problems. An objective and reasonable fuzzy evaluation method is demonstrated through the integration of interval-valued intuitionistic fuzzy sets, prospect theory, and improved D numbers. The secondary permeability index is introduced to establish a more scientific evaluation indicator system. The proposed model is implemented in evaluating the curtain-grouting efficiency of a hydropower station, and its consistency, representativeness, and superiority are validated and analyzed.

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Section: Comprehensive Evaluation Methods Under Interval-valued Intuimentioning

confidence: 99%

Section: Data Collectionmentioning

confidence: 99%

Section: Data Collectionmentioning

confidence: 99%

See 1 more Smart Citation

A Comprehensive Evaluation Model for Curtain Grouting Efficiency Assessment Based on Prospect Theory and Interval-Valued Intuitionistic Fuzzy Sets Extended by Improved D Numbers

et al. 2019

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“…The main factors of grouting design include material used, grouting control and grouting parameters [12,13]. The material used is the primary factor to prevent water and mud inrush disasters, which must be determined according to the hydrogeological conditions.…”

Section: Introductionmentioning

confidence: 99%

Optimizing the Grouting Design for Groundwater Inrush Control in Completely Weathered Granite Tunnel: An Experimental and Field Investigation

Zheng

Wang²,

et al. 2019

Sustainability

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Groundwater and mud inrush disaster from completely weathered granite presents a huge difficulty for tunnel construction, which requires the grouting measurement with favorable performance. To propose the optimal material parameters for grouting, numerous tests, including strength, permeability, and anti-washout, were conducted to evaluate the effects of grouting filling ratio (GFR), curing age and water velocity on the grouting effect. The test results show that: (1) The hydraulic property of completely weathered granite can be significantly improved by increasing the grouting volume and curing age. In particular, when GFR ≥ 48%, the cohesion and internal friction angle increased to about 200 kPa and 30°, which were more than three and ten times of that pre-grouting. (2) With the increase of GFR, the permeability exhibited three stages: Slowly decreasing stage, sharply decreasing stage and stable stage. When increased from 32% to 48%, the permeability coefficient sharply decreased two orders of magnitude, namely from 4.05 × 10−5 cm/s to 1 × 10−7 cm/s. (3) The particle erosion rate decreased sharply to below 10% in the low water velocity (v ≤ 0.2 m/s) when GFR ≥ 48%, but still exceeded 50% when v ≥ 0.4m/s. The results indicated that the grouting volume of GFR = 48% was a suitable grouting parameter to reinforce the completely weathered granite, particularly in the low water velocity condition. The field investigation of hydraulic-mechanical behaviors in the Junchang tunnel indicated that the grouting effect can be improved markedly.

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“…Many grouting monitoring systems have realized the data collection, data display online and geological information reports of grouting borehole. The three parameters grouting recorders [6] have been widely used in grouting engineering for more observational information such as grouting pressure, grout flow and grout density. For example, the Analytical Instrument Association intelligent grouting system had been used successfully in a project at Hunting Run Dam.…”

Section: Introductionmentioning

confidence: 99%

A robust controlling methodology for a grouting process

Zhang

Guo

2019

Automatika

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The grouting technology is an effective and economic method in the grouting industry field. In this paper, a nonlinear model for the grouting dynamic process was established, and the controlling parameters were further modified through a robust method. Moreover, the grouting pressure system for the neural network was also modelled based on a sensitivity analysis algorithm, and in particular, the iterative learning algorithm and Lyapunov asymptotical theory. The results showed that such a robust controlling methodology was better than the normal manual operation method. The subsequent numerical simulations demonstrated that the tuning methodology could meet all the requirements for the grouting control with the maximum pressure variable in the range of 8.1%. The present study and the proposed method could be applied to various engineering projects and especially, to implement in the real control of damming grouting.

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A Real-Time Analysis and Feedback System for Quality Control of Dam Foundation Grouting Engineering

Cited by 18 publications

References 16 publications

A Comprehensive Evaluation Model for Curtain Grouting Efficiency Assessment Based on Prospect Theory and Interval-Valued Intuitionistic Fuzzy Sets Extended by Improved D Numbers

A Comprehensive Evaluation Model for Curtain Grouting Efficiency Assessment Based on Prospect Theory and Interval-Valued Intuitionistic Fuzzy Sets Extended by Improved D Numbers

Optimizing the Grouting Design for Groundwater Inrush Control in Completely Weathered Granite Tunnel: An Experimental and Field Investigation

A robust controlling methodology for a grouting process

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