Height detecting system for concrete pouring surface of ultra-deep pile hole

Abstract

The invention discloses a height detecting system for a concrete pouring surface of an ultra-deep pile hole. The height detecting system comprises a digital lifting control system, a sensor system and a signal acquisition control system, wherein the digital lifting control system comprises two radial transducers, a main motor, a driven motor, two decelerators, two synchronizing wheels and a control cabinet; the sensor system comprises two radial transduces; a clump weight is assembled at the bottom of each of the radial transducers; a rubber gasket is arranged at the outer side of the lower end of each of the radial transducers in a sleeving manner; and the signal acquisition control system is a signal acquisition controller. According to the height detecting system disclosed by the invention, a principle of ultrasonic wave detection is adopted; sensors are separately put in corresponding pre-buried sunken tubes; a digital lifting device is used for controlling the lifting of the sensors and detecting ultrasonic wave echoes for the accurate detection of the depth; the design of the height detecting system is reasonable; the ultrasonic wave sensors are adopted for detection, and the digital lifting device is used for the control of the lifting, so that the height detecting system is good in stability, high in accuracy and accurate in detecting results.

Description

technical field [0001] The invention relates to a detection system, in particular to a detection system for the height of the concrete pouring surface of an ultra-deep pile hole. Background technique [0002] When bored cast-in-situ piles are used for engineering piles, there is often a certain distance between the pile top elevation and the natural ground, that is, there is an empty section in the pile hole that does not pour concrete. With the development of high-rise buildings, the scale of foundation pit engineering in my country has also expanded rapidly. The excavation depth of foundation pits is getting deeper and deeper, and the empty filling sections of engineering piles are also getting deeper and deeper. [0003] For projects that use reinforced concrete internal support as the support system and have high groundwater levels, the construction of bored and cast-in-place engineering piles usually starts from the ground. Since the empty grouting section of the pile ...

AI Technical Summary

Problems solved by technology

Since the empty grouting section of the pile hole is as deep as 20 meters, there is a certain depth of sediment and a large amount of mud water above the grouting surface, which brings great difficulty to the height detection of the grouting surface

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