How did the pile of clay work after the pile driver finished?
Friction end bearing pile -- the pile whose load is mainly loaded by the end of pile.Method according to construction methodBored piles: bored piles, immersed tube cast-in-place piles, hand dug bored piles, and explosion enlarged cast-in-place piles.In addition, the hole forming methods are: manual digging, mechanical drilling (positive cycle rotary method, reverse cycle rotary method, auger drilling method, drilling rig drilling method, etc.).
After the pile driver has finished the pile, the concrete is usually pumped under the concrete.Classification by load characteristicsFriction pileFriction piles - most of the load is caused by the friction of the soil around the pile, and the resistance at the end of the pile is negligible.End bearing friction pile -- the pile whose load is mainly borne by the friction force of the pile body.End bearing pileEnd bearing piles - most of the load is carried by the supporting force of the pile tip, while the resistance at the side of the pile is negligible.
Classification according to the setting effect of pilesNon compaction pile: such as drilling (punching or digging) pile and bored after the first and then into the precast pile, due to removal of holes in the soil in the process of setting up, the soil around the pile is not to be excluded, and may move to the pile hole, the soil shear strength decreased, pile side friction decreases.Partially squeezed soil pile: impact bored pile, H steel pile, open steel pipe pile and open prestressed concrete pipe pile, etc.. In the process of pile setting, the soil around the pile is slightly squeezed out, but the strength and deformation of soil have little change.Pile: solid precast pile and lower pile, piles and closed cast-in-place pile in hammer and vibration during the penetration will be located at the position of pile soil mass out, the serious disturbance of the soil structure, soil strength and deformation properties influence.Classification according to the formation method of pilesDriven pile: the use of machinery will be prefabricated concrete piles, stakes, steel sheet pile into the soil layer, the soil compaction, so as to achieve the purpose of strengthening the foundation.Bored pile: the underwater concrete is used to form an end bearing pile or a friction pile, so as to reinforce the foundation.