雙排樁支護結(jié)構(gòu)土壓力數(shù)值模擬研究-全文預覽
【正文】 bution of the doublerow pile, this paper using the general international geotechnical engineering analysis software FLAC3D ,through numerical simulation methods, study soil pressure distribution of the doublerow pile, e to the conclusion that the soil pressure before former row pile was roughly Sshaped distribution, its value was close to the static soil pressure。雙排樁支護結(jié)構(gòu)土壓力數(shù)值模擬摘 要：雙排樁支護結(jié)構(gòu)是一種新的深基坑支護形式，在進行雙排樁支護結(jié)構(gòu)設計時，土壓力的取值正確與否對支護體系設計是否合理起著決定作用，為了更準確的進行雙排樁支護結(jié)構(gòu)的設計必須了解作用在樁上的土壓力的分布情況，本文利用巖土工程分析軟件FLAC3D，運用數(shù)值模擬方法研究了雙排樁土壓力的分布情況，得出前排樁樁前土壓力大致呈S形分布，其值比較接近于靜止土壓力；前排樁樁后土壓力大致與靜止土壓力一致，基坑開挖面以上小于靜止土壓力，大于朗肯主動土壓力，以下大于靜止土壓力；后排樁樁前土壓力大致呈線性分布并大致與靜止土壓力一致，在基坑開挖面以上小于靜止土壓力，以下大于靜止土壓力；后排樁樁后土壓力較接近靜止土壓力，大于朗肯主動土壓力，在基坑開挖面以上小于靜止土壓力，以下有大于靜止土壓力的部分；樁間土對前后排樁樁側(cè)的土壓力大致相等。 Civil Engineering, China University of Mining and Technology, Xuzhou 221008, China。 the soil pressure behind rear row pile was close to the static soil pressure, and greater than the Rankine active soil pressure,in the excavation of foundation ditch was more than tne static soil pressure, underside of the excavation of foundation ditch was greater than the static soil pressure in part of pile ,the pressure of the soil between rows on pile side was roughly equal. On this basis and taking into account the impact of the array pitch, we can concluded that the array pitch of doublerow pile have a reasonable distance range.Key wards: doublerow pile, finite difference, soil pressure, numerical simulation6 / 60 引 言收稿日期：20080303作者簡介：牛雙建（1983），男，河南省開封市人，碩士研究生，研究方向：深基坑支護，Email：sjniu2006。由于土壓力的取值直接影響樁身的設計，因此，研究雙排樁所受土壓力分布
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