A device and method for monitoring horizontal displacement in the whole process of concrete dam construction and operation

Abstract

The invention relates to a horizontal displacement monitoring device and a horizontal displacement monitoring method in an overall horizontal-displacement construction and operation process of a concrete dam. The horizontal displacement monitoring device comprises a horizontal displacement monitor, a pipe sleeve, a datum line and a floating device; the pipe sleeve is a segmented extensible pipe sleeve; the datum line is arranged perpendicular to the horizontal plane; the pipe sleeve is arranged outside the datum line in a sleeving manner so that the datum line has an enough relative movement space relative to the sleeve pipe; the floating device comprises a floating cylinder protective hood, an oil tank and a floater, wherein the oil tank and the floater are arranged inside the floating cylinder protective hood; antifreeze non-volatile low-viscosity liquid is arranged inside the oil tank; the floater floats on the liquid under the effect of the buoyancy force of the liquid and is not limited by other components; the pipe sleeve and the floating device both synchronously rise with rising of a dam body in a construction process of the dam; and the horizontal displacement monitor is fixed to a measuring point position of the dam body and is used for monitoring changes of relative horizontal displacement of the dam body and the datum line at an instrument installation position. Thehorizontal displacement monitoring device provided by the invention does not affect the construction of the concrete dam and can realize continuous monitoring on the horizontal displacement of the dam in the overall processes of the construction period and the operation period of the dam.

Description

Technical field [0001] The invention relates to a monitoring device, in particular to a horizontal displacement monitoring device for the whole process of construction and operation of a concrete dam capable of monitoring the horizontal displacement during the construction period of the concrete dam during the operation period, and a method of using the device. Background technique [0002] Concrete dam starts from pouring of the foundation surface. Due to the weight of the dam body, the deformation of the foundation and both sides of the bank, especially the upstream reservoir water and its own creep, the dam body is constantly in the whole life cycle of construction and operation. Deformed. Dam deformation is the result of the combined effect of water level and temperature loads on the dam structure, materials, and construction data under specific geological conditions and time. According to the material characteristics of concrete and foundation, the deformation during the co...

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Problems solved by technology

[0004] In order to solve the problem that the existing horizontal displacement monitoring device can only monitor the dam after construction and cannot monitor during the construction period, the present invention provides a horizontal displacement monitoring device for the whole process of concrete dam construction and operation. It can realize the whole-process monitoring during the construction period and the operation period, and effectively prevent the occurrence of accidents

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