The time when the cement slurry's column pressure reduces to the water column pressure before or after initial set is directly related to whether or not formation fluids flow out during wait-on-time.
It can be seen that the initial maximum pore waterpressure takes place in the lower soil due to the load transformation from pile cap to soil.
研究结果表明，打桩后桩体所受荷载向下传递，地基中的初始最大孔隙水压力出现在桩端以下土层。
3
No pressure bucket to open type ready-to-drink pure water machine, usually on the initial ten seconds from pure TDS, higher traditional RO pure water machine will have this kind of phenomenon.