Cast-in-place pile sediment thickness measuring scale and using method thereof

Abstract

The invention discloses a cast-in-place pile sediment thickness measuring scale and a using method thereof, and belongs to the technical field of sediment thickness measurement. The device comprises a shell cylinder, and supporting frames are arranged on an outer ring of the shell cylinder at intervals; and a rotating shaft is arranged in the shell cylinder, a soft paper graduated scale is arranged on an outer ring of the rotating shaft in a surrounding manner, a hard contact piece is arranged on the outer ring of the soft paper graduated scale, and a contact rod is mounted at the bottom of the hard contact piece. The error convention that the sediment thickness is judged only according to construction experience is changed, the tip of the contact rod is in contact with a bearing layer, the contact rod is in contact with the hard contact piece, so that the contact hard contact piece and the soft paper graduated scale are driven to move together relative to the shell cylinder, when the relative movement is finished, the numerical value in a scale bracket corresponding to an indicator is the measured sediment thickness, and the cast-in-place pile sediment thickness measuring scale has the advantages of quickly, conveniently and accurately measuring the sediment thickness and improving the detection efficiency and the measurement precision.

Description

technical field [0001] The invention relates to the technical field of sediment thickness measurement, in particular to a sediment thickness measuring ruler for cast-in-place piles and a method for using the same. Background technique [0002] In the construction process of cast-in-situ piles, holes are first formed in the soil foundation, and then the reinforcement cage is lowered for concrete pouring. During the process of hole formation, sediment at the bottom of the hole is inevitable. Bottom sediment refers to the sediment left by sedimentation or hole collapse during drilling and cleaning. The existence of sediment at the bottom of the hole will affect the bearing capacity of the solidified concrete pile. Therefore, it is necessary to measure the depth of the sediment at the bottom of the hole to determine whether it is within the appropriate range. If it exceeds the range, the sediment needs to be cleaned. [0003] Use the traditional pendant hammer method to measure...

AI Technical Summary

Problems solved by technology

[0003] Use the traditional pendant hammer method to measure the sediment thickness. The usual method is to tie a heavy object to the starting point of the measuring rope and then lower it slowly. After reaching the bottom of the hole, slowly lift it up and down with your hands. Thickness, the accuracy of this method is not high, it is mainly estimated by the experience of construction personnel

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