Method for measuring indexes of drill cast-in-place pile slurry

Abstract

The invention belongs to the technical field of slurry detection, and particularly relates to a method for measuring indexes of drill cast-in-place pile slurry. The index measuring method comprises the following steps of a, measuring the relative density of the cast-in-place pile slurry, and specifically the measurement can be carried out through a slurry relative density meter; b, measuring the viscosity of the cast-in-place pile slurry, and specifically injecting 700 ml of the slurry into a hollow inverted conical container, calculating the time of 700 ml of the slurry freely passing throughthe inverted conical container, and finally comparing the time so as to obtain the viscosity of the measured slurry; and c, measuring the sand content (%) of the cast-in-place pile slurry, and specifically filling a measuring tube with a filter net in the middle with the slurry, also adding double-volume clear water and then carrying out shaking treatment, and then rotating the measuring tube by180 degrees so as to enable the measuring tube to be upside down, and finally observing a scale of sediment sand at the lower end so as to read the percentage content of the sand. According to the method for measuring the indexes of drill cast-in-place pile slurry, innovation and improvement are carried out on the basis of a traditional measuring method, so that the convenience of field measuringmethod is greatly improved, and the problem of complex operation in the traditional measuring method is avoided.

Description

technical field [0001] The invention belongs to the technical field of mud detection, in particular to a method for measuring mud indexes of bored piles. Background technique [0002] The cast-in-situ pile system refers to the pile holes formed in the foundation soil by means of mechanical drilling, steel pipe extrusion or manual excavation on the project site, and piles made by placing steel cages and pouring concrete in them, depending on the method of hole formation. , Cast-in-situ piles can be divided into several categories such as immersed tube piles, bored piles and hole-dug piles. [0003] At present, many road and bridge engineering pile hole muds are treated by a combination of chemical and mechanical methods. First, mechanically, use a 2-layer high-frequency vibrating dewatering screen to clean up the larger particles (>3mm) in the mud, and use a slurry pump or a sand pump to pump the remaining mud into the hydrocyclone for solid-liquid After separation, the ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to aim at the defects and deficiencies of the prior art, and provide a simple in structure, reasonable in design, easy to use bored pile mud index measurement method, which has carried out innovation and transformation on the basis of traditional detection means, Greatly improved the convenience of on-site detection methods, avoiding the complicated operation of traditional detection methods

Images