预探
1.In view of the high risk in drilling new-field wildcats in frontier areas, the geological risk and strategic value should be taken into consideration besides the reliability of the prospects during selecting of the best traps to drill.
2.Through years of practice in Huanghua Lough,a set of static cone penetration test formula has been obtained for vacuum preloading foundation in soft soil area by researching on the correlativity among cone point resistance,physico-mechanical indexes in 11 projects. The set of formula has important reference sense to calculate the foundation bearing capacity,modulus of compressibility,undrained shear strength,ultimate side resistance of pile,and to assess the character of vacuum preloading foundation in soft soil area.
3.According to the fact that the penetrate mechanism of static sounding penetration and static jacking pile is similar, we obtained the predict formula of the static jacked resistance of the precast piles after comparing several engineerings, and can use it in the construction of the precast piles.
