Effects of seismic amplification on the stability design of geosynthetic-reinforced soil walls

Ge, Bin; Ruan, Huaining; Shu, Shuang; Zhang, Fei; Gao, Yufeng

doi:10.1016/j.geotexmem.2022.05.003

Cited by 10 publications

(3 citation statements)

References 42 publications

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“…The average and coefficient of variation (CV) of UCS and cement content of single columns are summarized in Table 5 . It can be found that the UCS and cement content of the drilled core samples are characterized by lognormal distribution 20 , 30 . The UCS of the core samples is mainly concentrated between 0.6 MPa and 1.6 MPa, and the cement content is concentrated between 8 and 22%.…”

Section: Resultsmentioning

confidence: 99%

Quality assessment and quality control of deep soil mixing columns based on a cement-content controlled method

Zuo

Wang

et al. 2023

Sci Rep

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This paper presents a cement-content controlled method for quality assessment and quality control of the deep soil mixing (DSM) columns in slope reinforcement. The ethylene diamine tetraacetic acid (EDTA) titration method was modified and used for the cement content measurement of core samples, and the effects of curing conditions and curing period on the titration results were investigated. 35 DSM columns with different construction parameters were installed in the test section, and cement content and unconfined compression tests of field core samples were conducted. The relationship between the unconfined compressive strength (UCS) and cement content of DSM columns was formulated, and the quality of DSM columns with different construction parameters was assessed. The test results suggested that the failure strength of the field cores was approximately 15–55% lower than that of laboratory samples with the same cement content. In single columns, the coefficient of variation (CV) of cement content had a negative correlation with the average failure strength and a positive correlation with the coefficient of variation of failure strength. Bidirectional mixing method, lower penetration and withdrawal velocity, more mixing blades and larger number of mixings could improve the uniformity of the DSM columns.

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Section: Resultsmentioning

confidence: 99%

Quality assessment and quality control of deep soil mixing columns based on a cement-content controlled method

Zuo

Wang

et al. 2023

Sci Rep

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“…properties, thereby making it more resistant to deformation and failure under various loads, including those induced by seismic activities [31,32]. Some commonly used techniques include:…”

Section: Key Design Codes and Guidelines Addressing Soil-structure In...mentioning

confidence: 99%

Soil-Structure Interaction: Understanding and Mitigating Challenges

Akbar Firoozi,

Asghar Firoozi

2024

Civil Engineering

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This chapter provides a comprehensive analysis of Soil-Structure Interaction (SSI), a key component in solving complex engineering challenges amidst rapid urbanization and changing environmental conditions. It elucidates the theoretical principles and practical implications of SSI, emphasizing its role in creating sustainable and resilient engineering solutions. The chapter explores the soil\'s response to different load scenarios, highlighting the impact on structural reliability and integrity. The narrative includes real-world case studies demonstrating the practical application of SSI principles, advocating their integration into contemporary construction methodologies for improved structural safety. It also outlines innovative strategies to tackle SSI-related challenges, such as employing advanced materials and computational models. Finally, the focus is placed on sustainability and resilience-driven solutions designed to withstand the tests of time and climate change. Serving as a valuable guide for various stakeholders in the field, this chapter underscores the significance of SSI in the development of environmentally conscious and structurally robust constructions.

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“…In recent decades, geosynthetics have been adopted more frequently, as in civil engineering [1,2], transportation engineering [3,4], hydraulic engineering [5], and other fields, because they have excellent engineering characteristics, such as low cost [6,7], simple construction [8,9], better seismic [10], seepage-stability [11], stability [12] and performance and deformation coordination [13,14]. The geocell is an important new type of geosynthetic reinforcement [15] material that is free to expand and contract.…”

Section: Introductionmentioning

confidence: 99%

Effect of the Slit on the Mechanical Tearing Behavior of High-Density Polyethylene and Polyester Geocell Strips

Zuo,

Hao,

et al. 2023

Sustainability

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Geocells are widely applied in numerous infrastructure constructions, like heavy-haul railways and ports. The mechanical tearing behavior of a geocell strip is crucial to the stability of the geocell-reinforced soil structures. At present, extensive studies have been conducted on the tensile characteristics of geocell strips, while limited research has been performed to investigate the post-damage mechanical tearing behavior of geocell strips. Meanwhile, there is also a lack of research on the comparison of performance of strips before and after damage. In this paper, a series of trapezoidal tearing tests were performed on high-density polyethylene (HDPE) and polyester (PET) geocell strips. The tearing test results and failure mode of trapezoidal specimens with a slit were investigated, and the effect of the slit on the strength and deformation characteristics of the specimen were discussed by introducing the “damage ratio of tearing force (RTF)” and “damage ratio of tearing displacement (RTD)”. In addition, the mechanical tearing behavior of HDPE and PET trapezoidal specimens was also compared. The test results indicated that the failure mode of HDPE and PET specimens subjected to tearing force was ductile and brittle failure. The strength and deformation characteristics of post-damage HDPE and PET trapezoidal specimens decreased. The slit had a significant impact on the tearing displacement of HDPE and PET specimens, especially the post-peak tearing displacement. The post-peak tearing displacement of HDPE was 10.99 times that of PET. The peak tearing force of the HDPE specimen without the slit was about 1.61 times that of specimen with the slit. Before local tearing, the peak tearing force of the PET specimen without the slit was about 3.27 times that of the specimen with the slit. The strength damage to the HDPE and PET geocell strips caused by the slit was 38.0%, and 69.46%. The impact of the slit on the tearing force of the PET specimen was greater than that of the HDPE, and was 1.82 times for the HDPE. This study can enhance our understanding of the mechanical tearing behavior of the geocell strip after damage and develop effective mitigation measures.

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Effects of seismic amplification on the stability design of geosynthetic-reinforced soil walls

Cited by 10 publications

References 42 publications

Quality assessment and quality control of deep soil mixing columns based on a cement-content controlled method

Quality assessment and quality control of deep soil mixing columns based on a cement-content controlled method

Soil-Structure Interaction: Understanding and Mitigating Challenges

Effect of the Slit on the Mechanical Tearing Behavior of High-Density Polyethylene and Polyester Geocell Strips

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