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A platform for research: civil engineering, architecture and urbanism
Frost-uplifting resistant structure of pile foundation in permafrost region and construction method thereof
The invention relates to a frost-uplifting resistant structure of a pile foundation in a permafrost region. The frost-uplifting resistant structure comprises the pile foundation placed in a permafrostlayer, and is characterized in that a casing is arranged on the position, at the upper limit of frozen soil, of the pile foundation, and a protective layer is arranged on the hole wall of the position, where the casing is located, of the pile foundation; and a non-frost-heaving filling material with the shrinkable volume is arranged between the protective layer and the casing. The invention further discloses a construction method of the structure. According to the frozen and uplift resistant structure, the frozen and uplift resistant effect is good, the cost is low, the construction is simple, and the problem of freezing and uplifting of the pile foundation in the permafrost region can be effectively solved.
本发明涉及一种多年冻土区桩基抗冻拔的结构，包括置于多年冻土层内的桩基，其特征在于：处于冻土上限上的所述桩基设有护筒，该护筒所处的所述桩基的孔壁设有保护层；所述保护层与所述护筒之间设有体积可收缩的非冻胀填充物。本发明还公开了该结构的施工方法。本发明抗冻拔效果好、造价低、施工简单，可有效解决多年冻土区桩基的冻拔问题。
Frost-uplifting resistant structure of pile foundation in permafrost region and construction method thereof
The invention relates to a frost-uplifting resistant structure of a pile foundation in a permafrost region. The frost-uplifting resistant structure comprises the pile foundation placed in a permafrostlayer, and is characterized in that a casing is arranged on the position, at the upper limit of frozen soil, of the pile foundation, and a protective layer is arranged on the hole wall of the position, where the casing is located, of the pile foundation; and a non-frost-heaving filling material with the shrinkable volume is arranged between the protective layer and the casing. The invention further discloses a construction method of the structure. According to the frozen and uplift resistant structure, the frozen and uplift resistant effect is good, the cost is low, the construction is simple, and the problem of freezing and uplifting of the pile foundation in the permafrost region can be effectively solved.
本发明涉及一种多年冻土区桩基抗冻拔的结构，包括置于多年冻土层内的桩基，其特征在于：处于冻土上限上的所述桩基设有护筒，该护筒所处的所述桩基的孔壁设有保护层；所述保护层与所述护筒之间设有体积可收缩的非冻胀填充物。本发明还公开了该结构的施工方法。本发明抗冻拔效果好、造价低、施工简单，可有效解决多年冻土区桩基的冻拔问题。
Frost-uplifting resistant structure of pile foundation in permafrost region and construction method thereof
一种多年冻土区桩基抗冻拔的结构及其施工方法
CHEN JI (author) / RUI PENGFEI (author) / WU QINGBAI (author) / WU GUILONG (author) / LIU GUOJUN (author)
2020-10-20
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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