Pneumatic type lightweight dynamic sounding device

Abstract

The invention discloses a pneumatic type lightweight dynamic sounding device. The pneumatic type lightweight dynamic sounding device comprises an electric control device, a feeler lever, a supportingframe, an electromagnet seat, a penetrating hammer, a hammer pad, a compressed gas storage tank and a strong magnet piston, wherein the supporting frame is a frame body with a vertical hollow mountingshaft, the hammer pad is located at the upper end of the feeler lever, and the lower end of the mounting shaft is connected to the hammer pad. The central axis of the mounting shaft and the central axis of the sounding rod are located on the same straight line, the electromagnet seat and the penetrating hammer are movably arranged on the mounting shaft in a sleeved mode, the electromagnet seat isarranged above the penetrating hammer, the strong magnet piston is a columnar body and is located in the mounting shaft and can move up and down, the electric control device is connected with the electromagnet seat and a control valve of the compressed gas storage tank respectively, the compressed gas storage tank is communicated with the mounting shaft through a control valve, the communicationport is located below the strong magnet piston, and an exhaust port capable of being opened and closed is arranged on the mounting shaft. According to the pneumatic type lightweight dynamic sounding device, automatic ascending and free falling of a penetrating hammer is realized, the labor intensity is reduced, and standardization and standardization of operation is realized. The pneumatic type lightweight dynamic sounding device is convenient to use, time-saving and labor-saving, and high in accuracy.

Description

Technical field [0001] The invention relates to a light-weight power penetration testing device used for engineering geological survey, foundation detection and construction inspection grooves, in particular to a pneumatic light-duty power penetration testing device. Background technique [0002] The light dynamic penetrometer is a kind of equipment used in engineering geological survey, foundation inspection and construction inspection. It can be used to estimate the bearing capacity of the natural foundation, identify its geotechnical properties, in addition, it can also be used to estimate the bearing capacity of the treated soil foundation, evaluate its foundation treatment effect, inspect the pile quality of the composite foundation reinforcement, and identify concrete pouring Rock and soil properties of pile end bearing layer. [0003] The traditional light power penetration probe is composed of a probe rod, a penetrating hammer (mass 10kg) movably sleeved on the penetrating...

AI Technical Summary

Problems solved by technology

[0005] ⑴The operation is very labor-intensive. In order to ensure the test efficiency, in addition to the recording personnel, a light dynamic penetrometer often needs 3 to 4 auxiliary workers, and the number of operators is large.

[0006] (2) The "Specification" requires that the hammering rate of the light-duty dynamic penetrometer is 15-30 blows / min, and the falling distance is 50cm. With manual operation, it is difficult to strictly meet the requirements of the specification for hammering speed and falling distance.

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