Abstract
This installment is the displacement stick in the foundation piles static load testing method. The testing technology of the foundation piles self balance static load is a kind of new pile foundation static load testing methods which take the Southeast University Professor Dr. Gong Wei-ming’s two patents as core technology. The method buries load box which is a special device to load in the pile, then directs the high-pressure oil pipe in load box and the displacement stick to the ground. At last, it fills oil from high-pressure pump to load box. So load box transmits the strength to the pile shaft. The friction of its upper and the lower part of the pile shaft and end resistance are in equilibrium that the self balance maintains the load. Through a series of devices to increase the distance measuring device.
Key words: Deep displacement the balance of static load test the bearing capacity
