This article reports that makers of polypropylene, amorphous PET and expanded PS have been successful in moving up prices for their products while polyethylene (PE) makers have lifted the energy surcharge. The 6 cent-per-pound PE surcharge has disappeared as natural gas prices have dropped below$...
on this equation.Numerical simulation analysis shows that the post-construction settlements controlled by the regional empirical settlement rate standards are much more less than the allowed values,the settlements controlled by the proposed settlement rate standards meet the requirement of specifications....
l.TThheemmaatteerriaiall properties were determined based on experimental test results [33] and are summarized in Table 1. The Mohr-Coulomb constitutive model was used to model the 1st, 4th, and 5th soil layers of gravel, sandy silt, and silty sand. The Drucker-Prager model was used to ...