According to construction practice of drilled grouting piles under geological condition of spherical weathering granite,the author introduces treating methods and detecting way during construction,finally put forward self-suggestion and comprehension.

The phenomenon of grantic spherical weathering is frequently encountered in railway engineering which traverses granite areas.

But,the different weathering usually occurs in the different rocks,while the spheroidal weathering in the same rocks.

New data of phosphatized globular fossils from Weng'an biota in the Ediacaran Doushantuo Formation and the problem concerning their affinity

It was found that there was a large amount of spheroidal carbide in the microstructure after normalizing or forging,which is quite different from the traditional technique for carbide spheroidizing of high.

The results show that the spheroidization effect is better and better with the increasing of drawing deformation magnitude,the uniformity and roundness of spherical carbide are improved obviously;the annealing effect is not obvious after larger .