Lossless method for fast evaluating filling compaction quality of soil building stones in real time and evaluating device thereof

A technology of compaction quality and soil-rock materials, which is applied in the field of foundation soil survey, construction, infrastructure engineering, etc., can solve the problems that the stiffness cannot accurately represent the characteristics of soil-rock materials, and the relationship is complicated

Active Publication Date: 2015-04-08
HOHAI UNIV
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Problems solved by technology

Therefore, the stiffness cannot accurately characterize the characteristics of soil and rock, and the relationship between the stiffness of soil and rock measured by vibratory rollers and the on-site rolling of soil and rock is quite complicated.

Method used

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  • Lossless method for fast evaluating filling compaction quality of soil building stones in real time and evaluating device thereof
  • Lossless method for fast evaluating filling compaction quality of soil building stones in real time and evaluating device thereof
  • Lossless method for fast evaluating filling compaction quality of soil building stones in real time and evaluating device thereof

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Experimental program
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Effect test

Embodiment

[0017] A kind of non-destructive method of rapid real-time evaluation of earth-rock filling compaction quality of the present embodiment comprises the following steps:

[0018] The first step is to calculate the continuous pressure F transmitted by the vibrating roller to the soil and stone to be tested according to the relevant parameters of the vibrating roller during the process of rolling the soil and stone to be tested by the vibrating wheel of any type of vibrating roller; , the continuous pressure transmitted by the vibrating roller to the compacted soil and rock for: , where is the mass of the vibrating wheel; is the acceleration of the vibration wheel; is the mass of the eccentric block inside the vibrating wheel; is the eccentric distance of the eccentric block; is the angular frequency of the rotation of the eccentric mass; Represents the magnitude of the vibration rolling force; Remove the weight of the external frame of the vibrating wheel for vibr...

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Abstract

The invention relates to a lossless method for fast evaluating filling compaction quality of soil building stones in real time and an evaluating device of the filling compaction quality of the soil the building stones, and belongs to the technical field of water conservancy and civil engineering. The lossless method is based on the principle that a vibrating roller is used for vibrating compacting, effective compaction energy which is sent to rolled soil building stones by the vibrating roller is monitored in real time, the compaction rate of the soil building stones is judged by setting up an equivalent energy (threshold value) judgment criterion which corresponds to commonly-used compaction index (relative density, degree of compaction and the like). According to the lossless method, the compaction degree of the rolled soil building stones can be fast and accurately determined, and the compaction degree of the rolled soil building stones can be convenient and lossless to determine.

Description

technical field [0001] The invention belongs to the technical field of water conservancy and civil engineering, and relates to the quality evaluation of earth-rock filling, in particular to a fast, real-time and non-destructive evaluation method and evaluation device for earth-rock materials using heavy-duty vibratory rolling compaction technology. Background technique [0002] With the appearance of large-scale vibrating rollers, the compacted earth-rock materials have higher strength and deformation modulus, which promotes the rapid development of modern roller-compacted high earth-rock dams. However, how to conveniently and quickly carry out non-destructive testing on the compactness of earth and stone materials and evaluate the compactness of dam materials is still not satisfactory. [0003] At present, clay or gravel clay is controlled by compaction degree, and coarse-grained material is controlled by relative density index. In the application process, it is necessary ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D1/00
Inventor 朱晟石永超
Owner HOHAI UNIV
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