Sensitivity of Multistage Fill Slope Based on Finite Element Model

Yuan, Bingxiang; Li, Zihao; Su, Zhilei; Luo, Qingzi; Chen, Minjie; Zhao, Zuqing

doi:10.1155/2021/6622936

Cited by 70 publications

(51 citation statements)

References 43 publications

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“…In order to evaluate the reinforcement effect, the finite element method is needed. In recent years, the finite element method has been widely used [24]. e parameters to be analyzed are determined, and the finite element method is used for trial calculation.…”

Section: Interpretation Of the Resultsmentioning

confidence: 99%

Identification of Modal Parameters for Reinforcement of Walls in Earthen Ruins

Liu¹,

Shi²,

Liu

et al. 2021

Advances in Materials Science and Engineering

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The protection of earthen sites plays an important role in the context of preservation of cultural heritage, especially in the inheritance and promotion of history and culture. The aim of the paper is to present the essential results of an ongoing research on a reinforced rammed earthen wall in Suoyang City (Guazhou, China). The wall vibrations caused by ambient actions were analyzed using the stochastic subspace algorithm to estimate the modal parameters of the wall. The frequencies of the first three orders are 3.566 Hz, 5.003 Hz, and 6.250 Hz, and the corresponding modes are first-order transverse bending, second-order left and right torsion, and third-order vertical bending, respectively. Then, according to the data of elastic modulus obtained in the lab, the finite element calculation is carried out, and referring to the results of field measurement, the revised elastic modulus value is 205.90 MPa. It is worth mentioning that the revised value is significantly improved from the original laboratory value, and it is also indicated that the seismic performance of the reinforced wall has been significantly improved. The present work is expected to provide a theoretical basis for reinforcement, protection, and seismic control of earthen ruins.

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Section: Interpretation Of the Resultsmentioning

confidence: 99%

Identification of Modal Parameters for Reinforcement of Walls in Earthen Ruins

Liu¹,

Shi²,

Liu

et al. 2021

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

show abstract

“…e gradual application of modern information technologies such as the Internet and big data in education and teaching has triggered changes in traditional majors and disciplines such as civil engineering and forced colleges and universities to reconstruct the talent training system for traditional industries. Especially in recent years, due to the impact of global climate change, the frequency and intensity of extreme climate events have increased significantly, affecting geological bodies in various ways and inducing a series of engineering geological disasters, such as subgrade collapses and house cracking [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Decision Making of Curriculum Attainment Degree for Engineering Geology Based on Fuzzy Set Theory

Yang

Shu-ting

Zhao

et al. 2021

Advances in Civil Engineering

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The study of engineering geology emphasizes the combination of theory and practice, and it highlights the comprehensive cultivation of curricular theory, curricular practice, and comprehensive skills. It is necessary to establish a set of effective methods to evaluate the achievement of training objectives to track, test, and improve the quality of curricular learning. In this paper, the principle of the fuzzy analytic hierarchy process based on entropy is used to construct an evaluation index system for the goal achievement degree of engineering geology courses, and the primary indicators mainly include knowledge, ability, and quality. Based on the actual situation, five curricular achievement levels are determined, that is, the comment set V = {very low, low, medium, high, very high}. Relying on the engineering geology course resource database of Xuchang University, the course goal achievement degree is evaluated, and the results show that the engineering geology course achievement degree is high. This method is suitable not only for the evaluation of the achievement of curricular objectives but also for the evaluation of the achievement of engineering education graduation requirements. This method can also help us find different courses and teaching weak links supporting the index points, indicate the direction and provide support for teachers to continuously improve their teaching and management methods, and effectively promote a continuous improvement in teachers’ teaching level and teaching quality.

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“…Tension cracks in soil slopes significantly reduce their stability by allowing deeper and faster infiltration of water into the slopes. e formation of tension cracks depends on the type of soil, the degree of drying of the slope surface, and the availability or lack of water [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Effect of Salt Content on the Evaporation and Cracking of Soil from Heritage Structures

Cui

Zhao

et al. 2021

Advances in Materials Science and Engineering

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The degree of damage to heritage structures in arid areas can be particularly serious due to long-term exposure to a harsh arid climate. In this paper, the characteristics of evaporation and cracking of soil taken from heritage structures with different NaCl concentrations are experimentally investigated by subjecting saturated soil samples taken from the Wang-Jing tower in Weihui City, Henan Province. Making soil sample of water content of 110% is used to test the rate of evaporation at a constant temperature and humidity, through which the changes in the evaporation rate, water content, fracture development, and fracture fractal dimension are obtained. The results show that, (1) with higher water content, NaCl can affect the evaporation process by increasing the matrix suction of the soil of the Wang-Jing tower and then affect the cracking process of soil. When 0%, 1%, 2%, and 4% NaCl are added, the residual water content of the samples is 3.15%, 4.23%, 4.82%, and 5.89%, respectively, which show an obvious trend of increasing water content; (2) the period with a stable fracture fractal dimension of the samples is shortened with an increase in NaCl concentration, and its maximum fractal dimension is reduced in turn; and (3) at a lower water content, NaCl crystallizes and precipitates in the pores of the soil, which provide a cementitious effect among the soil particles, thus inhibiting crack development.

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Sensitivity of Multistage Fill Slope Based on Finite Element Model

Cited by 70 publications

References 43 publications

Identification of Modal Parameters for Reinforcement of Walls in Earthen Ruins

Identification of Modal Parameters for Reinforcement of Walls in Earthen Ruins

Decision Making of Curriculum Attainment Degree for Engineering Geology Based on Fuzzy Set Theory

Effect of Salt Content on the Evaporation and Cracking of Soil from Heritage Structures

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