A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Supporting method for widening existing road embankment
The invention relates to a supporting method for widening an existing road embankment, which comprises the following steps: S1, drilling and arranging a plurality of cast-in-place piles according to the widening range of the existing embankment; s2, a top beam, a lower wall, a lower buttress and a bottom plate are constructed; s3, after the top beam, the lower wall, the lower buttress and the bottom plate are maintained to reach the design strength, the backfill soil is rolled to the bottom of the unloading plate in a layered mode; s4, an unloading plate is constructed; s5, constructing an upper wall and an upper buttress; and S6, after the upper wall and the upper buttress are maintained to reach the design strength, the backfill soil is continuously rolled in a layered mode to reach the design elevation. The problems that a traditional balance weight type retaining wall generates large settlement deformation on a soft soil foundation, the manufacturing cost is high and construction is complex can be effectively solved, on the basis of widening the embankment, the supporting and reinforcing effects on the existing embankment are achieved, differential settlement of a new embankment and an old embankment is reduced, and the bearing capacity and the overall safety of the embankment are enhanced.
本发明是一种既有道路路堤拓宽的支护方法，包括以下步骤：S1、根据既有路堤的拓宽范围，钻孔并布置若干灌注桩；S2、施工冠梁、下墙、下扶壁、底板；S3、冠梁、下墙、下扶壁、底板养护达到设计强度后，分层碾压回填土至卸荷板底部；S4、施工卸荷板；S5、施工上墙和上扶壁；S6、上墙和上扶壁养护达到设计强度后，继续分层碾压回填土至设计标高。本发明可有效解决传统衡重式挡土墙在软土地基产生较大沉降变形、造价高、施工复杂的难题，在实现路堤拓宽的基础上，对既有路堤亦有支护加固的作用，减小了新旧路堤的差异沉降，增强了路堤的承载力及整体安全性。
Supporting method for widening existing road embankment
The invention relates to a supporting method for widening an existing road embankment, which comprises the following steps: S1, drilling and arranging a plurality of cast-in-place piles according to the widening range of the existing embankment; s2, a top beam, a lower wall, a lower buttress and a bottom plate are constructed; s3, after the top beam, the lower wall, the lower buttress and the bottom plate are maintained to reach the design strength, the backfill soil is rolled to the bottom of the unloading plate in a layered mode; s4, an unloading plate is constructed; s5, constructing an upper wall and an upper buttress; and S6, after the upper wall and the upper buttress are maintained to reach the design strength, the backfill soil is continuously rolled in a layered mode to reach the design elevation. The problems that a traditional balance weight type retaining wall generates large settlement deformation on a soft soil foundation, the manufacturing cost is high and construction is complex can be effectively solved, on the basis of widening the embankment, the supporting and reinforcing effects on the existing embankment are achieved, differential settlement of a new embankment and an old embankment is reduced, and the bearing capacity and the overall safety of the embankment are enhanced.
本发明是一种既有道路路堤拓宽的支护方法，包括以下步骤：S1、根据既有路堤的拓宽范围，钻孔并布置若干灌注桩；S2、施工冠梁、下墙、下扶壁、底板；S3、冠梁、下墙、下扶壁、底板养护达到设计强度后，分层碾压回填土至卸荷板底部；S4、施工卸荷板；S5、施工上墙和上扶壁；S6、上墙和上扶壁养护达到设计强度后，继续分层碾压回填土至设计标高。本发明可有效解决传统衡重式挡土墙在软土地基产生较大沉降变形、造价高、施工复杂的难题，在实现路堤拓宽的基础上，对既有路堤亦有支护加固的作用，减小了新旧路堤的差异沉降，增强了路堤的承载力及整体安全性。
Supporting method for widening existing road embankment
一种既有道路路堤拓宽的支护方法
HE XIAOPEI (author) / LIU XIAOMIN (author) / SONG LIWEI (author) / BAI QIANGQIANG (author) / GE LONGBO (author)
2024-09-10
Patent
Electronic Resource
Chinese
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