Experimental study of burial depth effect on embedded pipe deformations in sandy slopes under dynamic landsliding

Jahromi, Hadi Farahi; Jafarzadeh, Fardin; Zakaria, Masood Samadian

doi:10.1016/j.soildyn.2018.06.038

Cited by 20 publications

(3 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The failure of piles often starts from localized damage caused by stress concentration during earthquakes [11]. However, little research has been conducted on the progressive failure process of piles.…”

Section: Progressive Failure Process Of the Piles Subjected To Seismi...mentioning

confidence: 99%

“…Qu et al [10] proposed an analytical model for analyzing the dynamic behaviors of reinforced slopes and performed a shaking table test to verify the model. Jahromi et al [11] conducted an experimental study of the deformation of piles in a sandy slope using a 1 g shaking table test, and they found that the dynamic response of the slope gradually decreased from slope toe to crest. Cheng et al [12] reported a model test on the response of anchors subjected to cyclic loading.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Research on the Dynamic Response of a Slope Reinforced by a Pile-Anchor Structure under Seismic Loading

Li,

Chu,

Zhang

et al. 2023

Buildings

View full text Add to dashboard Cite

In earthquake-prone areas, pile-anchor structures are widely employed for slope reinforcement due to their reliable performance. Current research has primarily focused on static and quasi-static analyses of slopes reinforced by using pile-anchor structures, with limited investigation into their dynamic response. In this work, the finite element method (FEM) is used to study the dynamic behavior of a pile-anchor slope system, and the extended finite element method (XFEM) is used to simulate the progressive failure processes of piles. Three different reinforcement schemes, which include no support, pile support, and pile-anchor support, are considered to examine the performance of the pile-anchor structure. The simulation results suggest that the pile-anchor structure displays a reduction of 39.6% and 40.6% in the maximum shear force and bending moment of the piles, respectively, compared to the pile structure. The XFEM is utilized to model the progressive failure process of the piles subjected to seismic loading. We find that crack initiation in the pile body near the slip surface, for both the pile supported and the pile-anchor supported conditions, occurs when the peak ground acceleration arrives. Crack growth in the piles completes in a very short period, with two distinct increments of crack area observed. The first increment occurs when the peak ground acceleration arrives and is significantly larger than the second increment. Consequently, for the seismic design of piles, it is necessary to strengthen the pile body around slip surfaces. The novelty of this paper is that we realize the simulation of crack initiation and propagation in piles subjected to seismic loading.

show abstract

Section: Progressive Failure Process Of the Piles Subjected To Seismi...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Research on the Dynamic Response of a Slope Reinforced by a Pile-Anchor Structure under Seismic Loading

Li,

Chu,

Zhang

et al. 2023

Buildings

View full text Add to dashboard Cite

show abstract

“…Due to the large volume, considering the difficulty of building a full-scale model and experimenting, geotechnical centrifuge experiments are currently used to construct acceleration fields and use laboratory models to simulate the stress of pipelines under the action of actual landslides. Hadi and Fardin [7] transformed the engineering prototype parameters into laboratory model parameters based on the method of Iai [8 , 9] , and carried out similarity analysis, focusing on the influence of pipeline buried depth on pipeline deformation and landslide response. The study shows that the existence of the pipeline has little effect on the displacement of the landslide soil, which verifies the rationality of considering the pipeline strain as the landslide soil displacement.…”

Section: Introductionmentioning

confidence: 99%

Study on the Pipe–soil Interaction under Instability of Slope Based on Flume Experiment

Lian

Shi²,

Fan³

et al. 2022

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

To study the landslide of buried gas pipeline caused by rainfall, based on the flume experiment the laboratory model of rainfall-induced pipe–soil interaction of slope instability was established. By monitoring the cross-section strain of the pipeline under the slope instability induced by rainfall infiltration, the effect of soil on the pipeline is analyzed and calculated. The results show that the pipeline is located at different failure surfaces of the slope, which is affected by slope instability to different degrees. In the slope toe of apertures, ultimate cross-section strain is the largest, calculation of soil force and maximum limit 1515.535 N/m, and that of slope top pipe is 216.169 N/m, attenuation trend from toe to the top. Resultant force directions are distributed in soil and the horizontal angle is 68°. The results can provide reference and technical reserve for the study of pipe-soil interaction of buried natural gas pipelines under the action of landslide and the further improvement of pipeline safety.

show abstract

Dynamic Response Characteristics and Instability Mechanism of High-Steep Bedding Rock Slope at the Tunnel Portal in High-Intensity Seismic Region

Shi,

Zhang,

Song

et al. 2023

Rock Mech Rock Eng

View full text Add to dashboard Cite

Experimental study of burial depth effect on embedded pipe deformations in sandy slopes under dynamic landsliding

Cited by 20 publications

References 30 publications

Research on the Dynamic Response of a Slope Reinforced by a Pile-Anchor Structure under Seismic Loading

Research on the Dynamic Response of a Slope Reinforced by a Pile-Anchor Structure under Seismic Loading

Study on the Pipe–soil Interaction under Instability of Slope Based on Flume Experiment

Dynamic Response Characteristics and Instability Mechanism of High-Steep Bedding Rock Slope at the Tunnel Portal in High-Intensity Seismic Region

Contact Info

Product

Resources

About