Construction method of road foundation widening and filling of expressway interchange turns with solidified soil

A technology of expressway and construction method, which is applied in the field of civil construction, can solve the problems of ineffective treatment of flatness and compaction of single-layer fill, and low efficiency of roadbed filling, so as to improve the filling efficiency and ensure the overall quality. Effect

Active Publication Date: 2022-07-22
湖南长株高速公路开发有限责任公司
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Problems solved by technology

[0005] For this reason, the present invention provides a construction method for widening and filling solidified soil on highway interchange ramp roadbed, which is used to overcome the problems caused by the inability to effectively process single-layer fill soil whose flatness and compaction degree do not meet the standards in the prior art. Aiming at the problem of low filling efficiency of roadbed

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  • Construction method of road foundation widening and filling of expressway interchange turns with solidified soil

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Embodiment Construction

[0058] In order to make the purpose and advantages of the present invention clearer, the present invention will be further described below with reference to the embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0059] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principle of the present invention, and are not intended to limit the protection scope of the present invention.

[0060] see figure 1 As shown in the figure, it is a flow chart of the construction method of the highway inter-turn road foundation widening and filling solidified soil according to the present invention. The construction method for widening and filling the solidified soil of the highway inter-turn road ba...

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Abstract

The invention relates to the technical field of civil construction, in particular to a construction method for widening, filling, and solidifying soil for highway inter-turn roadbeds. Bulldozers are used to level the subgrades in each area in turn, and graders are used to level the subgrades in each area in turn; the subgrades in a single area are rolled and it is determined whether the subgrade meets the standards after rolling; Add solidified soil layer by layer; renovate the subgrade surface and slope. After completing the rolling of the single-layer roadbed, the present invention will determine whether the flatness or compaction of the roadbed meets the standard according to the thickness change of the roadbed, and use the corresponding operation according to the judgment result to make the single layer after rolling meet the standard. , effectively improving the filling efficiency for the roadbed.

Description

technical field [0001] The invention relates to the technical field of civil construction, in particular to a construction method for widening, filling and solidifying soil for road foundations of highway interchanges. Background technique [0002] The traffic volume of expressways is increasing year by year. Due to insufficient estimates of the rapid growth of traffic in the early construction of expressways, some expressways have been saturated with traffic at present, which reduces the efficiency of expressways. Compared with newly built roads, the widening and reconstruction of old roads, especially the widening and reconstruction of interchange ramps, is difficult to construct, complicated in process and high in quality requirements. Due to the different settlements of the old and new subgrades, their settlement deformations are also different, resulting in differential settlement between the old and new subgrades. [0003] The use of solidified soil construction techn...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C21/00E01C19/28
CPCE01C21/00E01C19/28
Inventor 李刚谭卓民郭艳玲朱云雄刘泽辉
Owner 湖南长株高速公路开发有限责任公司
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