A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for preventing settlement of frozen soil highway subgrade
The invention relates to a method for preventing settlement of a frozen soil highway subgrade, belongs to the technical field of reinforced highway subgrades, and aims to solve the problems of overall settlement and uneven settlement of a frozen soil highway. A method for preventing settlement of a frozen soil highway subgrade comprises the steps of surface cleaning of the frozen soil highway subgrade, compaction of the subgrade, piling of steel sheet piles, anti-seepage treatment, anti-corrosion treatment, reinforcement of the top of a steel sheet pile wall and subgrade backfilling. According to the method, two rows of steel sheet pile walls are formed by piling in the range of +/-1m away from each side of the edge of the road surface under the surface cleaning ground of the road, the upper edges of the steel sheet pile walls are on the horizontal plane of the surface cleaning ground, and the lower edges of the steel sheet pile walls penetrate into the frozen soil layer by 2-5m. According to the structure, the water content change caused by freeze thawing and runoff of soil below the surface cleaning ground is reduced, and the change of soil bearing capacity is correspondingly reduced, so that the overall settlement and differential settlement of the frozen soil road can be reduced, and the service life of the frozen soil road is prolonged.
本发明涉及一种冻土公路路基防沉降的方法，属于强化公路路基技术领域，用以解决冻土公路整体沉降和不均匀沉降的问题。一种冻土公路路基防沉降的方法，包括：冻土公路地基清表、地基压实、钢板桩打桩、防渗水处理、防腐处理、钢板桩墙顶部加固和回填路基。本发明方法通过在公路的清表地面以下、距离公路路面边缘每侧±1米的范围内打桩形成两排钢板桩墙，钢板桩墙上边部在清表地面的水平面，下边部深入冻土层2～5米的位置。该结构减少了清表地面以下土壤因冻融、径流引起的水含量变化，相应地减少了土壤承载力的变化，从而可以减少冻土公路的整体沉降和不均匀沉降，提高了冻土公路的服役寿命。
Method for preventing settlement of frozen soil highway subgrade
The invention relates to a method for preventing settlement of a frozen soil highway subgrade, belongs to the technical field of reinforced highway subgrades, and aims to solve the problems of overall settlement and uneven settlement of a frozen soil highway. A method for preventing settlement of a frozen soil highway subgrade comprises the steps of surface cleaning of the frozen soil highway subgrade, compaction of the subgrade, piling of steel sheet piles, anti-seepage treatment, anti-corrosion treatment, reinforcement of the top of a steel sheet pile wall and subgrade backfilling. According to the method, two rows of steel sheet pile walls are formed by piling in the range of +/-1m away from each side of the edge of the road surface under the surface cleaning ground of the road, the upper edges of the steel sheet pile walls are on the horizontal plane of the surface cleaning ground, and the lower edges of the steel sheet pile walls penetrate into the frozen soil layer by 2-5m. According to the structure, the water content change caused by freeze thawing and runoff of soil below the surface cleaning ground is reduced, and the change of soil bearing capacity is correspondingly reduced, so that the overall settlement and differential settlement of the frozen soil road can be reduced, and the service life of the frozen soil road is prolonged.
本发明涉及一种冻土公路路基防沉降的方法，属于强化公路路基技术领域，用以解决冻土公路整体沉降和不均匀沉降的问题。一种冻土公路路基防沉降的方法，包括：冻土公路地基清表、地基压实、钢板桩打桩、防渗水处理、防腐处理、钢板桩墙顶部加固和回填路基。本发明方法通过在公路的清表地面以下、距离公路路面边缘每侧±1米的范围内打桩形成两排钢板桩墙，钢板桩墙上边部在清表地面的水平面，下边部深入冻土层2～5米的位置。该结构减少了清表地面以下土壤因冻融、径流引起的水含量变化，相应地减少了土壤承载力的变化，从而可以减少冻土公路的整体沉降和不均匀沉降，提高了冻土公路的服役寿命。
Method for preventing settlement of frozen soil highway subgrade
一种冻土公路路基防沉降的方法
FENG GUANGHONG (author) / HU YANBIN (author) / ZHANG HONGLIANG (author) / BAI YU (author) / WANG WEIWEI (author) / XIAO JINFU (author) / CONG JINGHUA (author)
2024-01-19
Patent
Electronic Resource
Chinese
Highway subgrade treatment device and method for frozen soil area
| European Patent Office | 2021
Analysis of Differential Settlement of Highway Soft Soil Subgrade
| Springer Verlag | 2018