Assessing the mechanical performance of different cable bolts based on design of experiments techniques and analysis of variance

Li, Danqi; Li, Yingchun; Asadizadeh, Mostafa; Masoumi, Hossein; Hagan, Paul; Saydam, Serkan

doi:10.1016/j.ijrmms.2020.104307

Cited by 28 publications

(12 citation statements)

References 24 publications

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“…Eq. (10) shows that the energy reflection coefficient is not only related to the energy attenuation coefficient but also has the relationship with the buried depth of the soil interface. The deeper the soil interface is, the greater the energy reflection coefficient.…”

Section: Energy Transfer Law At Interface Of Soil Layersmentioning

confidence: 99%

“…Combining Eqs. (10) and (20), the accuracy values of p, q and r can be obtained. Letting k = 1 and substituting it into Eq.…”

Section: Figure 10mentioning

confidence: 99%

“…Considering the laboratory and economic conditions, the independently designed and manufactured model device was adopted in the indoor model test [39,40]. The sizes of the model box were Length × Width × Height = 1.2 × 0.8 × 0.6 m. As shown in Fig.…”

Section: Verification and Analysis Of Indoor Model Testmentioning

confidence: 99%

“…Since the physical and mechanical properties between the scale test model and the prototype test cannot fully meet the similarity ratios, the size effect is often caused by a deviation between these test results [4]. Although there are many results about this topic, it is mostly still in empirical exploration or case studies [5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Size Effect Analysis of Scale Test Model for High-speed Railway Foundation under Dynamic Loading Condition

Wang¹,

Kunpeng

Zou

et al. 2021

Teh. vjesn.

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To determine the energy attenuation and energy reflection coefficients in layered foundation is the key factor to reveal the dynamic response characteristics of the high-speed railway foundation. Based on the foundation test model under the dynamic loading of the high-speed railway, the energy attenuation and energy reflection coefficients were introduced and the attenuation formulas of the vibration acceleration in the layered foundation were deduced. Five scale models of 1:1, 1:2, 1:5, 1:10 and 1:20 are established respectively by using Abaqus technique. The energy attenuation mechanism and interfacial energy reflection characteristics in the layered foundation were analyzed. Results show that it is appropriate to use vibration acceleration to characterize the propagation rule of the energy attenuation in the layered foundation. The size effect equations of the energy attenuation and energy reflection coefficients in the layered foundation are deduced and the size effect of the energy attenuation is revealed. Based on the nonlinear relationships among the energy attenuation coefficient, the model scale, the loading amplitude and the vibration frequency, the energy attenuation equation of the scale test model is constructed. The reliability of the theoretical and simulation results is verified by the scale test model. The conclusions obtained in this study can provide a reference for a similar engineering practice.

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Section: Energy Transfer Law At Interface Of Soil Layersmentioning

confidence: 99%

“…Combining Eqs. (10) and (20), the accuracy values of p, q and r can be obtained. Letting k = 1 and substituting it into Eq.…”

Section: Figure 10mentioning

confidence: 99%

Section: Verification and Analysis Of Indoor Model Testmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Size Effect Analysis of Scale Test Model for High-speed Railway Foundation under Dynamic Loading Condition

Wang¹,

Kunpeng

Zou

et al. 2021

Teh. vjesn.

View full text Add to dashboard Cite

show abstract

“…e underground engineering operations have been surging in the past decades in both mining engineering and tunnelling engineering due to the decrease of mineral resources in shallow depth and available space on the surface [1,2]. As such, the rock breakage has been significantly important and increasing the rock breakage efficiency as well as decreasing the associated cost has attracted significant attention from researchers [3].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Failure Law and Mechanism of Red Sandstone under Ultrasonic Vibration Excitation

Wang

Chen

et al. 2022

Geofluids

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Rock breakage is inevitable for creating openings in underground engineering operations. Ultrasonic vibration has been attracting extensive attention for such a practice considering its outstanding performance in rock breakage. In order to understand the fundamental failure mechanism of rocks subjected to ultrasonic vibrations, based on P-wave monitoring and the direct current electric method, we captured the evolution of the failure process of the red sandstone. In addition, we fundamentally analyse the failure mechanisms of the red sandstone using numerical simulation and microscopy scans. It was found that extensive fractures were initiated due to the ultrasonic vibration and the fractures propagated downwards forming a conical shape. The apparent resistivity became as high as 320000 Ω being 16 times the initial resistivity. The fracture propagated downwards as deep as 41 mm. The maximum damage parameter on the testing sample could be as high as 0.68, and it completely failed after 140 s of ultrasonic vibration duration. As a result of numerical simulation, it was found that the microfractures and pores in the testing sample were activated due to the stress wave resulting from the ultrasonic vibration leading to the fracture propagation and eventually complete failure. Through comparing the performance of uniaxial compressive loading and ultrasonic vibration techniques in rock damage, it was concluded the latter has a much higher capacity and competence in rock breakage.

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Performance optimization of solar pump operating by PV module

Singh,

Yadav,

Trivedi

et al. 2023

Env Prog and Sustain Energy

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In this research article, the objective of the work is to maximize the performance of solar pump based on input variables. The solar panel and motor pump set are the important parts of solar pump. The overall performance of the solar pump has been depending on the performance of solar panels and motor pump set. The tilt angle, surface azimuth angle, module temperature and speed of motor are most important input parameters on which whole performance of solar pump depends. So, for fulling these objectives a 5 hp (horsepower) solar pump has been installed in FET MJP Rohilkhand University, Bareilly located at 28.36° N, 79.43° E. The experimental data of output parameters at the different settings of input parameters and data generated by model equations have been optimized by the Response Surface Methodology (RSM) tool of Design of Experiments (DOE). The optimum setting of input parameters are Tilt Angle (TA) (36.22°), Surface Azimuth Angle (SA) (−1.26°), Module Temperature (MT), and speed of the motor (2169.69 RPM). On the optimum setting of input parameters, the values of the response are maximum Solar Flux (SF) (762 W/m2), maximum power output (3661.4578 W), minimum discharge (19.2681 m3/h), head developed (55.17 m), maximum motor efficiency (90.7488%), maximum exergetic efficiency (15.3799%), minimum Levelized cost of electricity (LCOE) (0.0361 $/KWh), maximum panel efficiency (17.1774%) and maximum overall efficiency (15.0117%).

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Assessing the mechanical performance of different cable bolts based on design of experiments techniques and analysis of variance

Cited by 28 publications

References 24 publications

Size Effect Analysis of Scale Test Model for High-speed Railway Foundation under Dynamic Loading Condition

Size Effect Analysis of Scale Test Model for High-speed Railway Foundation under Dynamic Loading Condition

Experimental Study on Failure Law and Mechanism of Red Sandstone under Ultrasonic Vibration Excitation

Performance optimization of solar pump operating by PV module

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