建筑工程灌注桩毕业论文中英文资料外文翻译文献(编辑修改稿)

建筑工程灌注桩毕业论文中英文资料外文翻译文献(编辑修改稿)内容摘要：

ical to plan, should not only guarantee a pile hole construction does not affect the last pile hole drill, and the moving distance of not too far and mutual interference. (6) the hole cleaning The drilling depth, diameter, location and shape of hole is directly related to the quality of pile and pile body black. Therefore, in addition to drilling process close 中英文资料 observation supervision, to meet the design requirements in drilling hole depth, with deep, hole, pore shape, pore size and other inspections. In the end hole inspection in full pliance with the design requirements, shall immediately proceed to bottom hole cleaning, avoid it too long that mud settling, caused by borehole collapse. For friction pile when the hole wall is easy to collapse, in underwater concrete perfusion before the sediment thickness of not more than 30cm。 when the hole wall is not easy to collapse, not more than 20cm. For the post, in water or shoot the breeze, sediment thickness less than 5cm. Hole cleaning method is to use different and flexible application of drilling rig. Usually you can use normal circulation rotary drilling rig, reverse circulation rotary machine vacuum suction machine and slag pumping cylinder hole cleaning. The mud suction machine hole cleaning, required equipment, convenient operation, hole cleaning is thorough, but unstable in the soil should be used cautiously. Its principle is to use pressor generates high pressure air into a suction dredge pipeline will mud blowing. (7) pouring underwater concrete After finishing hole, can be prefabricated reinforcement cage hanging vertically into the hole, positioning to be fixed, and then using a perfusion catheter concrete, pouring concrete don39。 t interrupt, or prone to the phenomenon of broken pile. Effect of bored pile bearing performance factors In the construction process, construction machinery, due to geological effects, often caused by pile soil ( weak layers ), the thickness of ~ , thick and up to 1m. Especially in soft soil with mud, drilling, hole bottom sediment is inevitable。 even after careful cleaning hole, the hole cleaning after and before concrete, will precipitate some sediment, and in drilling process, widespread presence on the hole wall and the hole bottom soil disturbance. All of these affect the bearing capacity of bored pile play. Pile static load test show that, bored pile end bearing capacity of only the ultimate load of the 15% ~ 35%, the side resistance and tip resistance of the existing synchronization phenomenon. Give full play to the role of lateral friction resistance is only a few millimeters of the displacement of pile top, to give full play to the role of tip resistance of pile diameter, needed to reach 10% 30% of the displacement of pile top. Such a large displacement in engineering is not allowed. Pile side friction resistance to damage, and the damage limit is reached, and the end resistance cannot get sufficient play, its potential is great. This is the ultimate bearing capacity of bored pile is not to cause. 中英文资料 Research shows that, at the bottom of pile soil exists, not only affects the tip resistance of the play, also make the side friction resistance loss. The existence o。