Underground pipelines are widely applied in the so-called lifeline engineerings. It shows according to seismic surveys that the damage from soil liquefaction to underground pipelines was the most serious, whose failures were mainly in the form of pipeline uplifting. In the present study, dynamic centrifuge model tests were conducted to study the uplifting behaviors of shallow-buried pipeline su...

Abstract The increase of pore water pressure under a dynamic load is an important reason for the vibration liquefaction saturated sand. Therefore, studying model tailings sand plays role in seismic analysis ponds. In this paper, development characteristics fine and silt pond with centerline method are studied by triaxial tests. research results show that ratio shows trend "rising–smooth–rising"...

A polypropylene microporous membrane (PPMM) was fabricated by thermally induced phase separation (TIPS) method. The effects of protein size and structure as well as filtration pressure on the membrane performance and fouling mechanisms were investigated using two different proteins, bovine serum albumin (BSA) and collagen, in dead-end filtration setup. Obtained results showed that, for each pro...

although some 3d slope stability algorithms have been proposed in recent three decades, still role of pore pressures in three dimensional slope stability analyses and considering the effects of pore water pressure in 3d slope stability studies needs to be investigated. in this paper, a limit analysis formulation for investigation of role of the pore water pressure in three dimensional slope sta...

Excess adsorption of CO2, CH4, N2, and H2 on ZIF-8 was measured gravimetrically in the pressure range ranging from vacuum to 30 MPa at 298.15, 313.15, 333.15, 353.15, 394.15 K using a magnetic suspension balance. The textural properties adsorbent material?i.e., skeletal density, surface area, pore volume, pore-size distribution?were estimated by helium gravimetry N2 (77 K) physisorption. isothe...

This article focuses on physical characteristics of snail soil from Ljubljana marsh and their influence on geomechanical characteristics. Mineral and chemical composition, visual appearance, specific surface and grain property of the snail soil were determined. The geomechanical characteristics were investigated for their dependence on the physical characteristics. These relationships are expre...

For a series of metal-organic frameworks with rht topology, we study computationally the effect of the linker length on the surface area, pore size, and pore volume, relating them with the hydrogen adsorption properties. The results provide new insights about the excess capacities and the pressures where the uptake maxima in the excess isotherms occur. We found that, of the materials studied, ...

MATCHED asymptotic expansions are used to examine the stress and pore pressure fields near the tip of a plane strain shear (mode II) crack propagating on an impermeable plane in a linear elastic diffusive solid. For propagation speeds V that are large compared with c/I, where c is the diffusivity and I is the cracklength, boundary layers are required at the crack-tip and on the line ahead of th...