Experimental Study on the Influence of Aging on Mechanical Properties of Geogrids and Bearing Capacity of Reinforced Sand Cushion

Yuan, Hui Lin; X, Bai; Zhao, Hehui; Wang, Jingren

doi:10.1155/2020/8839919

Cited by 5 publications

(6 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…That is, they can only address the tensile stress on the geomembrane from one direction. However, numerous studies have shown that in practice, geomembranes are mostly stretched in two directions due to various factors, resulting in bidirectional stresses in geomembranes [27][28][29][30][31]. The existing method of reserving slack in one direction for geomembranes cannot address the protection of geomembranes when stretched in two directions.…”

Section: Two-way Reservation Conceptmentioning

confidence: 99%

Research on Bidirectional Reservation Method for Anti-Permeation Geomembrane Slack

Wang,

Xue,

et al. 2023

Applied Sciences

View full text Add to dashboard Cite

Geomembrane relaxation can effectively prevent the geomembrane from being damaged by tensile stresses caused by temperature changes and uneven settlement of the foundation. Existing and commonly used reservation methods, such as wave-shaped, groove-shaped, and Z-shaped techniques, are unidirectional and cannot resist multidirectional tensile stresses in geomembranes. Therefore, we propose three methods for reserving bidirectional geomembranes, including the cross-groove-shaped, cross-Z-shaped, and combined Z- and groove-shaped techniques. Additionally, we investigate the key issues of these methods and their practicality through field tests and theoretical analyses. The results of the study show that the cross-groove-shaped technique is prone to geomembrane folding at the corners of the cross-intersection, and it is necessary to set a wiping angle of approximately 35° to solve the problem. The cross-Z-shaped technique does not require grooving and reduces the amount of civil construction performed. However, the neoprene rods cannot be folded 180° or restored after being separated once. The combined Z- and groove-shaped technique has no folding phenomenon and does not require 180° of folding. With a lack of folding, including 180° folding, the number of grooves can be reduced by half, but the cross-Z-shaped specimen cannot be restored after separation. In practical applications, it is recommended to use the cross-groove-shaped method or to choose a suitable bidirectional reservation method according to the actual requirements.

show abstract

Section: Two-way Reservation Conceptmentioning

confidence: 99%

Research on Bidirectional Reservation Method for Anti-Permeation Geomembrane Slack

Wang,

Xue,

et al. 2023

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…Many scholars have used this model to predict the tensile strength of geo grids. 29,30 For example, Yuan et al 31 used the gray model to predict the tensile strength of geo grids. The grey model has good prediction results for exponential growth sequences, but the state changes of mechanical systems are very complex, and the prediction accuracy using traditional gray models is not ideal.…”

Section: Introductionmentioning

confidence: 99%

Failure prediction of mechanical system based on meta‐action

Ran,

Chen,

Sagor

et al. 2024

Quality & Reliability Eng

View full text Add to dashboard Cite

Highly reliable mechanical systems can lead to significant losses in the event of failure, and the lack of comprehensive failure data presents challenges for developing techniques such as critical part identification and failure prediction. In light of this, this paper proposes a meta‐action‐based fault prediction method that effectively addresses the issue of limited fault data. Initially, the mechanical system is decomposed utilizing the “Function‐Motion‐Action” (FMA) methodology to derive individual meta‐action units (MAUs). Subsequently, the limited sample of fault data from the mechanical system is combined with processed expert knowledge to construct the corresponding fault propagation‐directed graph. Furthermore, the key MAUs are determined by applying the Decision–Making Trial and Evaluation Laboratory (DEMATEL) method. Last, the degradation data of the key MAUs is acquired by monitoring them, and a non‐homogeneous discrete grey model (DNGM) integrated with an improved BP neural network is proposed to facilitate the fault prediction of MAUs. Using an industrial robot as a case study, the prediction results demonstrate the superiority of the method proposed in this paper over a single gray model and neural network, thereby providing a reliable prediction approach for anticipating the future trends of data‐deficient mechanical systems.

show abstract

“…[6][7][8][9] Therefore, the tensile properties of geogrids become an important indicator of the effectiveness of geogrid strengthening projects. 10 Currently, the most common test method for the tensile properties of geogrids is the indoor tensile test. In terms of geogrid tensile tests, the existing literature mostly analyzes the effects of tensile medium, [11][12][13][14][15] tensile rate 16,17 and different ambient temperatures [18][19][20] on the tensile properties of geogrids.…”

Section: Introductionmentioning

confidence: 99%

“…6–9 Therefore, the tensile properties of geogrids become an important indicator of the effectiveness of geogrid strengthening projects. 10…”

Section: Introductionmentioning

confidence: 99%

Analysis of tensile properties of geogrids for different morphology parameters

Gao

Zhu

2023

Journal of Thermoplastic Composite Materials

View full text Add to dashboard Cite

Following the emergence of new morphology geogrids, tensile tests on some of the new morphology geogrids were conducted in this paper for practical engineering options. The study focuses on the tensile testing of 3D printed geogrids to analyze the effects of morphology differences (material, planar structure, filling rate, rib width and rib height) on the tensile properties of geogrids. The test results show that the tensile properties of high density polyethylene geogrids are stronger than those of polylactic acid geogrids. Increasing the filling rate of geogrid can increase the tensile performance while decreasing the rate of tensile performance improvement. In contrast to the elongation at the break of the geogrid, the maximum tensile strength and the maximum tensile modulus increase in the order of bidirectional, triaxial and quadaxial geogrids. When the rib width and the rib height increase by the same amount, the rib height increases the maximum tensile strength of the geogrid more than that of the rib width.

show abstract

Experimental Study on the Influence of Aging on Mechanical Properties of Geogrids and Bearing Capacity of Reinforced Sand Cushion

Cited by 5 publications

References 19 publications

Research on Bidirectional Reservation Method for Anti-Permeation Geomembrane Slack

Research on Bidirectional Reservation Method for Anti-Permeation Geomembrane Slack

Failure prediction of mechanical system based on meta‐action

Analysis of tensile properties of geogrids for different morphology parameters

Contact Info

Product

Resources

About