Results 21 to 30 of about 3,322 (166)

Attenuation Law of Train-Induced Vibration Response of Subgrade in Beijing–Harbin Railway

Shock and Vibration, 2021
To investigate environmental vibration in the case of railway subgrade in seasonally frozen regions, field experiments were conducted on the Beijing–Harbin railway subgrade of China in autumn and winter.
Ziyu Wang, Xianzhang Ling, Lina Wang, Yingying Zhao   +3 more
doaj   +1 more source

Investigation of Subgrade Stabilization Life-Extending Benefits in Flexible Pavements Using a Non-Linear Mechanistic-Empirical Analysis

Infrastructures
This paper investigates the effect of subgrade soil stabilization on the performance and life extension of flexible pavements. Several variables affecting soil stabilization were considered, including subgrade soil type (CL or CH), additive type and ...
Ali Reza Ghanizadeh, Mandana Salehi, Anna Mamou, Evangelos I. Koutras, Farhang Jalali, Panagiotis G. Asteris   +5 more
doaj   +1 more source

Analysis of the Embankment Settlement on Soft Soil Subgrade with a Cement Mixed Pile

Advances in Civil Engineering, 2021
The settlement of the widening of soft soil subgrade highways is typically associated with different treatment positions of cement mixed piles. In order to overcome this, in the current paper we employ the finite element method to simulate and analyze ...
Liang Yang, Wenyuan Xu, Keke Li
doaj   +1 more source

Fracture characteristics of a cement concrete pavement plate considering subgrade modulus decay based on a meshless finite block method

Frontiers in Materials, 2023
The decrease in the subgrade modulus immersed in rainwater can significantly increase the fracture risk of a cement concrete pavement plate. The aim of this study was to develop a meshless finite block method (MFBM) to reveal the failure mechanism of a ...
Hui Wei, Hui Wei, Yu Zhou, Wang Huang, Pihua Wen, Jue Li   +5 more
doaj   +1 more source

Optimal sand transport roadbed geometry structure of Taklamakan Desert highway

Frontiers in Earth Science
In order to obtain the optimal geometric structure for sand transport in desert roads, this study fully utilizes the natural sand transport capacity of the desert roads, aiming to reduce occurrences of road damage due to sand burial.
Yaliang Wang, Jianjun Cheng, Yuanfeng An, Ruoyuan Zhang   +3 more
doaj   +1 more source

Optimization of Subgrade Structure Parameters of Ballasted Track Passenger Dedicated Line

Shanghai Jiaotong Daxue xuebao, 2021
In order to improve the force condition of ballasted railway subgrade structure and reduce maintenance cost, it is necessary to study the influence of subgrade structure parameters on subgrade dynamic response under train load.
WANG Wei, LU Sikui, YANG Chengzhong, FENG Qingsong   +3 more
doaj   +1 more source

Distribution of temperature, moisture, stress and strain in the highway

Инженерно-строительный журнал, 2018
The paper analyzes regularities for the distribution of temperature, moisture, stresses and strains in pavement and subgrade of the highway, located in northern part of Kazakhstan, within one year, especially during cold season.
Bagdat Teltayev, Jiankun Liu, Elena Suppes   +2 more
doaj   +1 more source

Severity of perineal tears and deviations in perineal body anatomy: A three‐dimensional ultrasound study

Acta Obstetricia et Gynecologica Scandinavica, EarlyView.
Sonographic deviations in the muscles fusing into the perineal body were increasingly common with greater perineal tear severity 1 year after delivery in primiparous women. Abstract Introduction Perineal tears are classified into four degrees based on severity.
Hanne Sether Lilleberg, Franziska Siafarikas, Kari Bø, Marie Ellström Engh   +3 more
wiley   +1 more source

The Influence of Vegetation Cover on the Settlement Behavior of Permafrost Subgrade in the Greater Khingan Mountains Forest Region

Applied Sciences, 2023
The subgrade construction in the permafrost forest region will aggravate the degradation of frozen soil, which will lead to the settlement of the subgrade.
Zhibo Xu, Guihe Wang, Wu Chen
doaj   +1 more source

Computed Tomographic Grading of Ear Diseases in Guinea Pigs (Cavia porcellus)

Veterinary Radiology &Ultrasound, Volume 67, Issue 2, March 2026.
ABSTRACT Ear disease affecting the external and middle ears is a significant health concern in guinea pigs, which can be clinically silent and, if left untreated, can lead to severe and irreversible complications. Computed tomography (CT) is the primary imaging modality used to diagnose otitis in other species, particularly otitis media (OM).
Tara Brennan, Marine Beauvois, Charly Pignon, Thomas Coutant, Patricia Muffat‐es‐Jacques, Elsa Penel, Eymeric Gomes, Mihn Huynh, Harriet Hahn   +8 more
wiley   +1 more source