外文翻譯---軟土質(zhì)條件下管樁施工的技術(shù)措施(文件)
【正文】 3) 沉樁線路的選定 沉樁線路應(yīng)盡量采取 “走長(zhǎng)蛇形線路 ”，在鄰近建筑物或者需要保 護(hù)管線的區(qū)域應(yīng)當(dāng)考慮 “由近及遠(yuǎn) ”的施工方向。 4) 施工現(xiàn)場(chǎng)應(yīng)當(dāng)準(zhǔn)備有應(yīng)急措施的砂袋、鋼管、鋼筋、水泥、注漿機(jī)、發(fā)電機(jī)等施工工具。同時(shí)，減少了樁基問題的處理也降低了費(fèi)用。 excavation process, the process should be based on subexcavation cut off. 6) Digging machines, vehicles should be chosen to avoid using large equipment. Should try to choose a small digging machines, such as PC100 below. Vehicles to avoid the use of earth pit 10t cart. Technical measures digging 1) Excavation should be carried out layer by layer evenly, on both sides of the soil pile height shall not exceed 1m. 2) Collision against digging machine shaft. Mechanical excavation to the top of the pile 1m 30cm on both sides of the pile with the soil excavated. 3) Digging machines, moving vehicles, routes and both sides of the pile, as the case should be taken to spray anchor, paving the way for the base box, pond residue, such as for soil reinforcement. 4) Top of the hill slope areas and within 3 meters inside and outside, into the 6meter long pipe 6Φ14 within the reinforcement cage, stirrup to Φ6 300, top elevation of the reinforcement cage is located at 1 m below top of the pile, the reinforcement cage within 9 the irrigation C20 microexpansion into the concrete. 5) Soft and hard layer at the junction of the venue up and down elevation range of 2m, but also take concrete irrigation pipe within the reinforcement measures. 6) To reduce static piling of the squeezing effect on the impact of excavation, the choice of the following measures: a set of sand bags or plastic drain well to remove part of the excess pore water pressure, reduce soil paction phenomenon. Sand Wick diameter is generally 70 ~ 80mm, spacing l ~ , the depth of 10 ~ 12m. Plastic drain depth, spacing and the same Sand Wick. b stress release holes, diameter of 400, uniformly arranged around the depth of 10m or times the pile length. Handling of pile 1) Pile after excavation, such as face deviation, skew problems, according to pile dynamic testing conditions to determine the quality of, respectively, to be addressed. If the pile without breaking, jack can be used to push (pull) and the core of the method of irrigation treatment. Jack push (pull) force shall not be greater than the horizontal bearing capacity of single pile. If there are cracks in the pile, can be connected piles, anchor piles make way for processing. If deep cracks in the pile, and pile inclination larger caisson pile can not be implemented then. Meanwhile, the length of 25m anchor pile bearing capacity is not enough. At this point, consider the corresponding bottom hole location to stay until the floor is pleted, set to play bored piles. 2) Pile into the soil paction when the role will have to play well near the original building or the surrounding piles and other facilities have destroyed. In addition to the size of soil paction and the degree of crosssectional area and somewhere in the pile and the distance
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