Real-time monitoring device of earth-rock dam material compaction quality

Abstract

The invention belongs to the field of dam construction quality control of hydraulic and hydro-power engineering, and aims to provide a device which is suitable for earth-rock dam materials, realizes real-time monitoring on dam material compaction quality, remotely transmits monitoring information to a database for subsequent quality evaluation application and realizes the remote monitoring on a construction site. The technical scheme is that a real-time monitoring device of earth-rock dam material compaction quality comprises a runner wheel acceleration monitoring module, a global positioning system (GPS) positioning module and a data processing module, wherein an acceleration sensor of the runner wheel acceleration monitoring module is mounted on a part which is on a vibrating wheel of a rolling machine and which does not rotate with the vibrating wheel; and acceleration frequency spectrum data and the current sampling time are transmitted in the data processing module. The real-time monitoring device is mainly applied to the hydraulic and hydro-power engineering.

Description

technical field [0001] The invention relates to the field of dam construction quality control in the field of water conservancy and hydropower engineering, in particular to a real-time monitoring device for the compaction quality of earth-rock dam materials. Background technique [0002] The traditional methods for evaluating the compaction quality of earth-rockfill dam materials mainly use the results of limited test pit tests to reflect the rolling quality of the entire construction unit warehouse surface. This method generally takes a long time, is destructive, and the results are one-sided, which cannot fully reflect the rolling quality of the entire construction unit warehouse surface; at the same time, because the test results cannot be obtained quickly, which affects the construction progress, it cannot meet the requirements of high strength and high mechanization. construction requirements. Therefore, it is of great significance to timely feedback and control the co...

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned devices are basically concentrated in the field of road construction. Since the properties of earth-rock dam materials (material properties, gradation, water content, dry density, etc.) Spectrum) under the same situation, the compaction state of the pressed material is not consistent, so the above-mentioned devices are not completely suitable for characterizing the compaction quality monitoring of earth-rock dam dam materials

More importantly, the compaction quality indicators measured by these devices cannot correspond to the geodetic coordinates (such as literature [9-12]), that is, the compaction quality monitoring values ​​have no geographic attributes, making it difficult to directly indicate the monitored values ​​in practice. The specific location corresponding to the compaction quality index, so it is not easy to realize the feedback remedy for the quality defect; or the real-time monitored information cannot be remotely sent to the database for storage (such as literature [4-8]), only for the driver of the roller compactor Not only cannot be used for subsequent quality assessment applications, but also cannot meet the combination of front (working face supervision, construction unit) and rear (on-site camp design, owner, etc.) in line with national conditions, "driver-contractor-supervisor-owner" Integrated quality management mode

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