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Roadbed pavement structure located on embankment pipeline and construction method

A pavement structure and subgrade technology, which is applied in the direction of infrastructure engineering, roads, roads, etc., can solve the problems of large pipeline interference, the height of the pipe top cover soil and the distance from the embankment, and the difficulty of construction, so as to reduce the difficulty of construction, reduce damage and Probability of subgrade and pavement damage, effect of shortening construction period

Pending Publication Date: 2022-03-08
CHANGJIANG SURVEY PLANNING DESIGN & RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In related studies, pipeline reinforcement measures generally focus on excavating new force-transfer slabs, replacing light soil, etc. Such measures have great interference with existing pipelines, high construction difficulty, and are limited by the height of the top-covered soil and the distance from the embankment.

Method used

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  • Roadbed pavement structure located on embankment pipeline and construction method
  • Roadbed pavement structure located on embankment pipeline and construction method
  • Roadbed pavement structure located on embankment pipeline and construction method

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Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments to facilitate a clear understanding of the present invention, but they do not limit the present invention.

[0033] Such as Figure 1-4 As shown, the present invention is a subgrade pavement structure located on the pipeline near the embankment, including a surface layer 1, a base layer 2, a subbase layer 3 of graded crushed stones, a composite geomembrane 4, and a roadbed surface layer located above the pipeline near the embankment 7 from top to bottom. Filling soil layer 5; the surface layer 1 is located on the surface of the road, the base layer 2 is laid under the surface layer 1, the graded crushed stone subbase layer 3 is laid under the base layer 2, and the roadbed filling Layer 5 is paved below the graded gravel subbase 3, the roadbed filling layer 5 is located above the undisturbed soil layer 6, and a composite geomembrane is la...

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Abstract

The invention discloses a roadbed and pavement structure located on an embankment pipeline. The structure comprises a surface layer, a base layer, a graded broken stone subbase layer, a composite geomembrane and a roadbed filling layer which are positioned above the embankment pipeline from top to bottom, the surface layer is located on the surface of a road, the base layer is laid below the surface layer, the graded broken stone subbase layer is laid below the base layer, the roadbed filling layer is laid below the graded broken stone subbase layer, the roadbed filling layer is located above an undisturbed soil layer, and the undisturbed soil layer is located above the undisturbed soil layer. A composite geomembrane is laid between the base layer and the graded broken stone subbase layer. According to the method, non-excavation reinforcement measures are adopted for an existing pipeline, the embankment-adjacent area is reinforced through the cement-soil mixing piles, excavation of the embankment foot is avoided, and the foundation strength of the embankment-adjacent pipeline area and the embankment anti-seepage capacity are improved.

Description

technical field [0001] The invention belongs to the technical field of road engineering, and in particular relates to an embankment pavement structure and a construction method on a pipeline adjacent to an embankment. Background technique [0002] In the process of Binjiang road construction, it is inevitable that the proposed road will run parallel to the embankment pipeline. Since most of the existing embankment pipelines do not consider the new filling and road traffic load conditions in the design process, the road construction And in the later operation process, the pipeline may be displaced under the action of additional load, which will cause damage to the pipeline near the embankment and affect the normal use of the pipeline. Pipeline excavation and maintenance may change the seepage conditions of the embankment and affect the stability of the embankment. [0003] The stress situation of pipelines near embankments on the side of the road is very complicated. At pres...

Claims

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Application Information

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IPC IPC(8): E01C3/00E01C3/04E02D5/46
CPCE01C3/00E01C3/04E02D5/46
Inventor 尹祖超丁永富李亮谢亦红高红艳梁晓龙
Owner CHANGJIANG SURVEY PLANNING DESIGN & RES
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