Karst is a common geological condition in engineering construction. In order to study the influence of karst cave and boundary condition on the analysis of free field ground motion in karst area, viscoelastic artificial boundary was studied in free field ground motion analysis of karst region, a three-dimensional finite element model whose dimension is 1000 m × 1000 m × 500 m was set up, ch…
To reveal the reason for moisture condensation of an I-shaped pedestrian underpass in the summer, which is widely constructed in many large southern cities of China, its ventilation effect was investigated under a hot, rainy, and humid climate condition. Through in situ monitoring of the Yuejiazui I-shaped pedestrian underpass in Wuhan City, China, some internal environment parameters, such a…
The 7th Conference of the Australian Road Research Board, volume 7, part 6, pp. 111-128
This paper presents an example of monitoring the corrosion process with NDT techniques. The impressed current technique was used for accelerating reinforcement corrosion in a large-sized concrete slab with chloride contamination. Periodic NDT-CE inspections were carried out making use of ground penetrating radar (GPR), ultrasonic echo array and half-cell potential measurement. The work prese…
LOKASI: Ruang Koleksi Umum Rak 2
LOKASI: Rak Koleksi Umum Rak 2
Dislocation between adjacent rings and opening of conferential joints are two typical distress of shield tunnel due to longitudinal uneven settlement. However, most existing analysis methods only considered one distress. In this study, a longitudinal deformation model of shield tunnel is proposed based on the longitudinal deformation mechanism, which takes both bending deformation and shear def…
The structure of a segmental joint with a load-transferring gasket is complicated and exhibits piecewise and nonlinear deformation characteristics under loads. Joint stiffness largely depends on the properties of the concrete and load-transferring gasket, which are the main components of the joint. A reasonable consideration of their influence is one way to predict the failure process of the …