In order to improve the bearing capacity of foundations,some new grouting methods and techniques have been employed in the consolidation grouting of backfilled sand-cobble stratum,including casing drilling,filling sand in a perforated pipe,protecting the wall with SM plant glue,forming a hole by diamond drilling and grouting in stages.

The hollow fibre membranes made from cellulose diacetate (CDA) as matrix and acrylonitrile copolymer (PAN) of right amount were used for plasmapheresis.

To investigate the effect of this method on immunological properties and biochemical functions of plasma components, the virus inactivation method was performed on single donor plasma that was exposed to visible light (40 000 lux) at room temperature for 1 h in the presence of 1 μmol/L methylene blue.