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Method for detecting transverse compactness and uniformity of roadbed

A detection method and technology of compaction degree, which are applied in the field of foundation soil survey, infrastructure engineering, construction, etc., can solve the problems such as the inability to reflect the compaction degree and compaction uniformity of the vibrating wheel, and achieve the realization of the roadbed compaction process. Control and overall control, improve construction quality, reduce the effect of labor and material costs

Active Publication Date: 2021-07-27
CCCC FOURTH HARBOR ENG INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But up to now, this kind of technology still has the defect of not being able to reflect the degree of compaction and compaction uniformity in the lateral range of the vibrating wheel, which needs to be solved urgently

Method used

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  • Method for detecting transverse compactness and uniformity of roadbed
  • Method for detecting transverse compactness and uniformity of roadbed
  • Method for detecting transverse compactness and uniformity of roadbed

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Embodiment Construction

[0061] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0062] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention discloses a method for detecting transverse compactness and uniformity of a roadbed. The method comprises the steps that before a roadbed to be compacted is compacted, whether a first linear regression equation K = aF<SE> + b and a second linear regression equation s = cI<n> + d can be obtained or not is judged, wherein in the formulas, K is the transverse compactness, F<SE> is the resultant force of the counter force of a compacted layer, s is a transverse compactness uniformity parameter, and I<n> is a transverse uniformity index; if yes, the first linear regression equation and the second linear regression equation are obtained; acceleration information of a road roller is acquired in the process of compacting the roadbed to be compacted; the resultant force of the counter force of the compacted layer and the transverse uniformity index of the compacted layer are calculated according to a calculation rule and the acceleration information; and the transverse compactness of the roadbed to be compacted is determined according to the resultant force of the counter force of the compacted layer and the first linear regression equation, and the transverse compactness uniformity parameter of the roadbed to be compacted is determined according to the transverse uniformity index of the compacted layer and the second linear regression equation. According to the method, the transverse compactness and uniformity of the roadbed can be detected in real time.

Description

technical field [0001] The invention belongs to the technical field of road engineering construction, in particular to a method for detecting the degree of lateral compaction and uniformity of a roadbed. Background technique [0002] Vibratory compaction is one of the core processes of roadbed filling construction. Its principle is to use compaction machinery (rollers) to work on the loosely laid roadbed filler, thereby increasing the compactness of the compacted layer. Good compaction needs to meet the requirements of the overall strength and stiffness of the compacted layer to prevent instability and excessive deformation of the subgrade. On the other hand, it is also necessary to ensure the uniformity of compaction within the compaction range to prevent Uneven stiffness results in partial collapse and subsidence, resulting in uneven road surfaces and threatening safety and comfort. The traditional compaction quality inspection and evaluation adopts the sand filling metho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D1/00G06F17/11
CPCE02D1/00G06F17/11
Inventor 胡君龙王德咏王婧周红星邱青长
Owner CCCC FOURTH HARBOR ENG INST
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