Automatic synchronous inclination measuring device for precast pile with circular or circular ring shaped cross section

Abstract

The invention relates to an automatic synchronous inclination measuring device for a precast pile with a circular or a circular ring shaped cross section, which comprises a supporting mechanism, a monitoring adjusting mechanism and a man-machine interaction platform, wherein the monitoring adjusting mechanism comprises a guard plate with a U-shaped cross section, the guard plate is horizontally arranged through the supporting mechanism, six sliding grooves are formed in the guard plate in the same horizontal plane, and a ranging sensor is arranged in each sliding groove for measuring the distance between one point on the outer surface of the precast pile and the ranging sensor; and the man-machine interaction platform comprises a display screen and an operating platform, the operating platform is connected with a signal output end of the ranging sensor, and used for receiving a measuring signal of the ranging sensor and an input horizontal position signal of the ranging sensor and calculating the inclination angle and the inclination direction of the precast pile, and the inclination angle and the inclination direction are displayed through a display screen. Compared with the prior art, the automatic synchronous inclination measuring device can perform high-precision real-time measurement on the inclination direction and inclination angle of the precast pile with a circular or a circular ring shaped cross section, and meanwhile, the equipment is low in cost, simple to operate and convenient to disassemble, and can be repeatedly used.

Description

technical field [0001] The invention relates to the inclination measurement of prefabricated piles, in particular to an automatic synchronous inclination measurement device for circular or circular cross-section prefabricated piles in the pouring process. Background technique [0002] At present, due to the unevenness of the site, the large slope, the inclination of the pile driver itself, and the inability to stabilize the pile, the pile foundation, especially the prefabricated pile, often inclines to varying degrees during the pouring process. Excessive inclination of the pile foundation will affect its bearing capacity, and even make the pile foundation scrapped, resulting in huge economic losses. Therefore, it is particularly important to develop an instrument that can monitor the inclination and inclination of the pile foundation in real time. [0003] Before the present invention, the measurement of pile foundation inclination is generally divided into two types of in...

AI Technical Summary

Problems solved by technology

[0010] (1) The accuracy is not high enough

Especially for the indirect method of inclination measurement (such as the above-mentioned Rayleigh wave method and inclined echo method), due to the common factors such as uneven pile material and many cracks when the elastic wave propagates in the pile body, it is easy to cause the wave to distort in the direction of propagation. Deviation, which makes the measured data unreliable;

[0011] (2) The scope of application is relatively limited

The application objects of the above-mentioned inclinometer methods have limitations, for example, the inclinometer method and the caliper method are only applicable to prefabricated pipe piles and cannot be used for prefabricated solid piles;

[0012] (3) The operation is more cumbersome

[0013] (4) The test components of the direct method may fall off or be damaged at any time during the filling process of the prefabricated piles. Once damaged, the testing instrument will not be able to be used, resulting in the inability to measure the deflection generated during the subsequent filling process of the precast piles;

[0014] (5) Higher cost

Both the caliper and gyroscope inclinometers have high costs, so that the application range of inclinometer work is affected by capital and cost;

[0015] (6) The degree of automation and synchronization is not high

Real-time monitoring is seldom satisfied in the existing technologies. For example, the elastic wave method can only measure the instantaneous deflection of the pile foundation, but cannot carry out real-time and continuous detection of the deflection of the pile foundation;

[0016] (7) Reusability is not high

[0017] (8) Difficult to process and maintain

Some instruments with complex structures (such as gyroscopes) need to be repaired by designated manufacturers and repair shops once they are damaged during use. Generally, they cannot be repaired on site, which causes delays in construction and increases in costs.

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