Theoretical analysis and optimization of frame protection to control shallow slope stability and soil erosion

Lian, Jie; Wu, Jiujiang; Luo, Qiang

doi:10.1016/j.trgeo.2022.100724

Cited by 5 publications

(2 citation statements)

References 26 publications

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“…Fan et al [17] devised a new load distribution method intended for calculating internal forces for frame beams. Lian et al [18] examined the erosion protection provided by frame beams and their impact on stabilization and load-bearing behavior, conducting an analysis of the critical stability conditions of soil particles in a shallow slope under rainfall infiltration. Many studies have also been conducted on the stability of slopes reinforced by anchor frame beams [19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Field Test and Numerical Study of Three Types of Frame Beams Subjected to a 600 kN Anchoring Force

Qin,

Dou,

Yang

et al. 2024

Buildings

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Frame beams with anchor cables constitute a crucial method for slope reinforcement projects. With the development of fabricated structures, there has been an increasing focus on precast prestressed frame beams with anchor cables. This paper presents a field test conducted in Yunnan, China and numerical simulations to analyze the structure behavior of three types of frame beams with a 600 kN anchoring force: cast-in-situ frame beams, precast prestressed frame beams, and precast prestressed frame beams with connections. The results showed that: (1) Although all three types of frame beams met the design requirements for a 600 kN anchoring force capacity, the volume of precast prestressed frame beams constituted only 57% of that of the cast-in-situ frame beams. (2) The maximum bending moment for the precast prestressed frame beams with connections was 60 kN·m less than that for the cast-in-situ frame beams. (3) The field test results for bending moments exceeded the values obtained from the numerical simulation. When using a numerical simulation to study the bending moments of the anchor frame beams, it is acceptable to apply appropriate amplifications to the numerical results. (4) Among the three types of frame beams with cables, the precast prestressed frame beams with connections exhibited the best structural performance.

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Section: Introductionmentioning

confidence: 99%

Field Test and Numerical Study of Three Types of Frame Beams Subjected to a 600 kN Anchoring Force

Qin,

Dou,

Yang

et al. 2024

Buildings

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show abstract

“…These include poor landscape aesthetics and high energy consumption leading to environmental pollution [8,9]. However, the combination of concrete lattice beam and vegetation protection partially fulfills the requirements of ecological protection, but it has complex construction technology and management workload issues [10,11]. Moreover, granite residual soil is unsuitable for plant growth [12], resulting in high input costs and little protection effect.…”

Section: Introductionmentioning

confidence: 99%

Strength and Mechanism of Granite Residual Soil Strengthened by Microbial-Induced Calcite Precipitation Technology

Wang,

Li,

Chen

et al. 2023

Applied Sciences

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High rainfall environmental conditions can easily cause erosion or collapse of the granite residual soil slope. However, traditional slope reinforcement methods have drawbacks such as poor landscape effect, high energy consumption of raw materials, and environmental pollution. This study studied the application of microbial-induced calcite precipitation (MICP) in the reinforcement of granite residual soil. The consolidation effect of various methods was investigated, and the influence of cementing liquid concentration and pH value on consolidation under optimal curing conditions was explored. The results showed that the bacteria concentration reached OD600 = 3.0 and urease activity was 31.64 mM/min, which positively impact the production of calcium carbonate and the stability of crystal morphology. In addition, the soaking method was found to have the most effective consolidation effect on the surface soil samples, with the lowest disintegration rate. On the other hand, the peristaltic pump grouting method is the most effective in strengthening depth. This method resulted in a 513.65% increase in unconfined compressive strength (UCS), a 297.98% increase in cohesion, and a 101.75% increase in internal friction angle. This study also found that after seven rounds of grouting, the highest UCS was achieved in consolidated soil samples with a 0.5 mol/L cementing solution concentration, reaching 1.602 MPa. The UCS of soil samples increases as the pH value of the cementing fluid increases within the range of 6–8. As the pH value reaches 8–9, the strength increases and stabilizes gradually. These research findings can serve as an experimental basis for strengthening granite residual soil slopes and a guide for improving microbial geotechnical strengthening methods.

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Study on the evolutionary mechanisms driving deformation damage of dry tailing stack earth–rock dam under short-term extreme rainfall conditions

Xie,

Chen,

Xiong

et al. 2023

Nat Hazards

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Theoretical analysis and optimization of frame protection to control shallow slope stability and soil erosion

Cited by 5 publications

References 26 publications

Field Test and Numerical Study of Three Types of Frame Beams Subjected to a 600 kN Anchoring Force

Field Test and Numerical Study of Three Types of Frame Beams Subjected to a 600 kN Anchoring Force

Strength and Mechanism of Granite Residual Soil Strengthened by Microbial-Induced Calcite Precipitation Technology

Study on the evolutionary mechanisms driving deformation damage of dry tailing stack earth–rock dam under short-term extreme rainfall conditions

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