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A platform for research: civil engineering, architecture and urbanism
Permafrost region side slope slipping and slump prevention roadbed structure
The invention provides a permafrost region side slope slipping and slump prevention roadbed structure which comprises a roadbed body arranged on the ground, a seasonal frozen soil foundation which is located below the roadbed body, and periodically changes from a freezing state to a melting state along with seasonal changes, and a permafrost foundation which is located below the seasonal frozen soil foundation, wherein the permafrost foundation is in a frozen state throughout the year; and a spiral steel pile retaining wall is arranged at the slope toe position of the roadbed body, and the spiral steel pile retaining wall penetrates into the seasonal frozen soil foundation and the permafrost foundation. The lower portion of the spiral steel pile retaining wall can extend into the permafrost foundation, hydration heat generated in the construction process of cast-in-place concrete piles is avoided, and disturbance to permafrost can be reduced.
本发明提出了一种多年冻土区防边坡溜坍路基结构，包括路基本体，所述路基本体排布在地面上；位于所述路基本体下方的季节性冻土地基，所述季节性冻土地基随季节变化而周期性地从冻结状态和融化状态之间变化；位于所述季节性冻土地基下方的多年冻土地基，所述多年冻土地基常年处于冻结状态；其中，所述路基本体的坡脚位置设置有螺旋钢桩挡墙，所述螺旋钢桩挡墙深入到所述季节性冻土地基和多年冻土地基内。本发明的螺旋钢桩挡墙能够下部伸入到多年冻土地基内，避免了采用现浇混凝土桩施工过程中产生的水化热，能够减少对多年冻土的扰动。
Permafrost region side slope slipping and slump prevention roadbed structure
The invention provides a permafrost region side slope slipping and slump prevention roadbed structure which comprises a roadbed body arranged on the ground, a seasonal frozen soil foundation which is located below the roadbed body, and periodically changes from a freezing state to a melting state along with seasonal changes, and a permafrost foundation which is located below the seasonal frozen soil foundation, wherein the permafrost foundation is in a frozen state throughout the year; and a spiral steel pile retaining wall is arranged at the slope toe position of the roadbed body, and the spiral steel pile retaining wall penetrates into the seasonal frozen soil foundation and the permafrost foundation. The lower portion of the spiral steel pile retaining wall can extend into the permafrost foundation, hydration heat generated in the construction process of cast-in-place concrete piles is avoided, and disturbance to permafrost can be reduced.
本发明提出了一种多年冻土区防边坡溜坍路基结构，包括路基本体，所述路基本体排布在地面上；位于所述路基本体下方的季节性冻土地基，所述季节性冻土地基随季节变化而周期性地从冻结状态和融化状态之间变化；位于所述季节性冻土地基下方的多年冻土地基，所述多年冻土地基常年处于冻结状态；其中，所述路基本体的坡脚位置设置有螺旋钢桩挡墙，所述螺旋钢桩挡墙深入到所述季节性冻土地基和多年冻土地基内。本发明的螺旋钢桩挡墙能够下部伸入到多年冻土地基内，避免了采用现浇混凝土桩施工过程中产生的水化热，能够减少对多年冻土的扰动。
Permafrost region side slope slipping and slump prevention roadbed structure
一种多年冻土区防边坡溜坍路基结构
YE YANGSHENG (author) / ZHANG QIANLI (author) / GUO HUIQIN (author) / WANG YUNJIA (author) / DU CUI (author) / WANG LIYANG (author) / ZHANG XINGANG (author) / GUO LIUHUI (author) / LIU JINGYU (author) / LIU ZHENYU (author)
2022-02-01
Patent
Electronic Resource
Chinese
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