Detecting tube for maintenance and detection of highway engineering foundation pile

Abstract

The invention relates to a detecting tube for maintenance and detection of a highway engineering foundation pile. The detecting tube is composed of an orifice joint part and a tube body part, whereinthe orifice joint part comprises a rubber tube (1), and a seal closure (2), a seal closure pull ring (3), a pearl foam protecting sleeve (4) and a single-sided wire protecting rubber sleeve (5) whichare separately arranged on the rubber tube (1); the tube body part comprises a high strength PVC tube (6), and a joint sleeve (7), a depth identifier (8) and a tube bottom seal closure (9) which are separately arranged on the high strength PVC tube (6). The detecting tube has the advantages that the setting depth of the maintenance detecting tube is not limited by pile length; the maintenance detecting tube is good in data acquisition stability, can provide a detection channel by feeding conventional equipment into the foundation pile, is simple and convenient to mount, is free of early stagedetection work which is difficult and complex, and can provide the detection channel for foundation pile maintenance and detection underwater.

Description

Technical field: [0001] The invention relates to a detection tube for foundation pile maintenance detection in highway engineering, and belongs to the technical field of foundation pile detection equipment. Background technique: [0002] For bridges under construction or subgrade anti-slide piles, according to the relevant regulations of the Ministry of Transport, the construction quality of the foundation piles must be inspected to ensure that the bridge and subgrade slope can operate safely after opening to traffic. In the foundation pile construction stage of highway engineering, the existing foundation pile detection method is widely used for its fast detection, low cost, good effect and light equipment. In the existing foundation pile construction stage detection technology, after the foundation pile construction is completed and before the superstructure is constructed, the foundation pile detection work is performed with the pile top as the detection working surface. ...

AI Technical Summary

Problems solved by technology

For example, in the detection process of the side excavation method, due to the complex environmental conditions of the foundation pile foundation of the bridge in service and the deep embedding, the side excavation method is not only difficult to implement, but also has low detection efficiency, high cost, and large limitations. Popularization and application in pile maintenance inspection;

[0011] 2. The detection needs to be carried out on a specific working surface

However, there are not many foundation piles with this special working face in the actual detection work, so it is difficult to popularize and apply them in the maintenance detection of foundation piles;

[0012] 3. Poor stability of detection data acquisition

For example, the double-velocity method and the transverse wave method (torsional wave method), the detection is greatly affected by external factors (sensor installation, detection surface selection, excitation equipment selection, etc.), and the detection data with good stability cannot be obtained, which will affect the detection results. Therefore, it is difficult to popularize and apply in pile maintenance detection;

[0013] 4. The cost of special testing equipment is high

The high equipment cost is difficult to popularize and apply in foundation pile maintenance inspection;

[0014] 5. The cost of cooperation before testing is high and difficult

For example, based on the comprehensive technology of the radar method, the detection channel must be drilled near the foundation pile to be tested before the detection. A medium-sized address drilling rig is required to drill the detection channel. Difficult to popularize and apply in foundation pile maintenance detection;

[0015] 6. Unable to detect foundation piles under water

However, the existing technology is unable to carry out maintenance inspection on such underwater foundation piles.

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