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 …
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
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…
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…
Through discussion on present precast tunnel technology home and abroad, an advanced concept is put forward on intelligent construction for precast tunnel. A series of technical solutions are proposed for different tunnel sections, including precast cut and cover tunnel, monolithic precast cut and cover tunnel, GPST method for shield tunnel etc. A complete construction for tunnel could be reali…