Combined with the pile foundation construction experience of main pier of the Beijiang River Bridge on the south section of the west part of Guangzhou orbital highway,the composition of the advanced PHP slurry.

Basising the construction of bored piles in 8 # main pier of the DA Sheng-guan bridge, corresponding deep mudstone objective condition and deepwater construction, the function of PHP slurry was studied in this paper.

This paper describes the mixing proportioning technique and control method for the PHP slurry used for large diameter bored piles in the light of construction implementation of the large diameter foundation bored piles in deep water for the main bridge of the Beijiang River Bridge on the south section of the west part of Guangzhou Orbital Highway.

Starting from improving high temperature mud properties and researching some methods to realize it, the influence of high temperature crosslinkage of SMP, SMK and SMC mud conditioners on mud properties under the circumstances of such factors as salinity (NaCl) and pH of medium, type, concentration and preparation ratio of mud conditioners, crosslinking agent, temperature and time, etc.

The physical properies and chemical composition of the high-level radioactive sludge(HLRS) and HLLW on the different height of the HLLW storage tank have been studied.