Buscar recursos académicos

Based on the ellipsoid theory of particle flows, that is, an ellipse sliding face is presented in the loosening zone at upper part of tunnels, a method is deduced to calculate the lateral earth pressure coefficient relat...

Good air tightness of filter membranes is necessary for opening excavation chamber under high pressure. To improve the value of air tightness, one should understand the pore structure and permeability change of filter me...

Aiming at improving the inversion quality of anomalies near the electrodes in boreholes, which has been a large issue interfering in the three-dimensional (3D) cross-hole electrical resistivity tomography (ERT), an inver...

Considering the spatial variability of soil properties, a probabilistic evaluation method is proposed for the safety of buildings above tunnels based on the random field theory and the numerical analysis method. The elas...

The technology of dredger fill treatment becomes one of the technical difficulties in soft soil foundation treatment. The compressive strength and shear strength of dredger fill can be improved by adding lime and other s...

According to the fractal theory, the fractal distribution formula of gradation for rockfill materials is deduced. The field gradation data of six dams with clay core and five 200 m-high CFRDs are used to verify the relev...

In present work spectral distribution of absorption coefficient in the range of 100 – 300 K was investigated and band gap values evaluated. Parameters of Urbach rule were calculated and linearity of temperature depende...

The mathematical methods of FFT and wavelet transform are used to deal with the acoustic emission (AE) frequency information of rock fracture firstly. Combined with the spectral distribution of AE signal, the main respon...