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New and old roadbed connecting structure and construction method
The invention belongs to the field of road construction and maintenance, and particularly relates to a new and old roadbed connecting structure and a construction method. The new and old roadbed connecting structure comprises a new roadbed and an old roadbed, wherein a slope of the old roadbed is provided with a plurality of steps; the new roadbed and the old roadbed are spliced through steps on a side slope; at the joint of the new roadbed and the old roadbed, the particle size of the aggregate in the new roadbed is equal to or smaller than that of the aggregate in the old roadbed. The structure can effectively prevent water from infiltrating from the joint of the new roadbed and the old roadbed, reduces soil expansion and settlement caused by water change at the lower part of the pavement, and is beneficial to keeping the flatness and stability of the pavement. And meanwhile, the possibility of damp expansion and frost heaving of the material at the lower part of the pavement can be reduced, so that the service life of the pavement is prolonged, and the maintenance and repair frequency and cost are reduced. In addition, the scheme is high in implementation efficiency, proper in cost and easier to popularize and apply in actual construction.
本发明属于道路建设和养护领域,具体涉及一种新旧路基衔接结构及施工方法。所述新旧路基衔接结构包括:新路基,所述旧路基的边坡具有多级台阶;以及旧路基,所述新路基和所述旧路基通过边坡上的台阶拼接;在所述新路基和所述旧路基的拼接处,所述新路基中的骨料粒径等于或小于所述旧路基中的骨料粒径。该结构能够有效地阻止水分从新旧路基衔接处渗入,并减少路面下部因水分变化引起的土壤膨胀和沉降,有助于保持路面的平整度和稳定性。同时,也能减少路面下部材料的受潮膨胀和冻胀的可能性,从而延长路面的使用寿命,减少维护和修复的频率和成本。此外,本发明方案实施效率高,且成本适当,更容易在实际施工中进行推广应用。
New and old roadbed connecting structure and construction method
The invention belongs to the field of road construction and maintenance, and particularly relates to a new and old roadbed connecting structure and a construction method. The new and old roadbed connecting structure comprises a new roadbed and an old roadbed, wherein a slope of the old roadbed is provided with a plurality of steps; the new roadbed and the old roadbed are spliced through steps on a side slope; at the joint of the new roadbed and the old roadbed, the particle size of the aggregate in the new roadbed is equal to or smaller than that of the aggregate in the old roadbed. The structure can effectively prevent water from infiltrating from the joint of the new roadbed and the old roadbed, reduces soil expansion and settlement caused by water change at the lower part of the pavement, and is beneficial to keeping the flatness and stability of the pavement. And meanwhile, the possibility of damp expansion and frost heaving of the material at the lower part of the pavement can be reduced, so that the service life of the pavement is prolonged, and the maintenance and repair frequency and cost are reduced. In addition, the scheme is high in implementation efficiency, proper in cost and easier to popularize and apply in actual construction.
本发明属于道路建设和养护领域,具体涉及一种新旧路基衔接结构及施工方法。所述新旧路基衔接结构包括:新路基,所述旧路基的边坡具有多级台阶;以及旧路基,所述新路基和所述旧路基通过边坡上的台阶拼接;在所述新路基和所述旧路基的拼接处,所述新路基中的骨料粒径等于或小于所述旧路基中的骨料粒径。该结构能够有效地阻止水分从新旧路基衔接处渗入,并减少路面下部因水分变化引起的土壤膨胀和沉降,有助于保持路面的平整度和稳定性。同时,也能减少路面下部材料的受潮膨胀和冻胀的可能性,从而延长路面的使用寿命,减少维护和修复的频率和成本。此外,本发明方案实施效率高,且成本适当,更容易在实际施工中进行推广应用。
New and old roadbed connecting structure and construction method
一种新旧路基衔接结构及施工方法
HE BAIQING (Autor:in) / LONG XIANG (Autor:in) / XIANG YANMAO (Autor:in) / WU JIANBO (Autor:in) / CHEN FULEI (Autor:in) / YE MING (Autor:in) / XIE LIQING (Autor:in)
09.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
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