Construction method for dynamically monitoring large-diameter deep stirring construction effect

Abstract

The invention discloses a construction method for dynamically monitoring the large-diameter deep stirring construction effect, and belongs to the technical field of stirring pile construction. Based on a stirring drilling machine formed by combining a stirring drill bit with a short-wave infrared spectrometer and a plurality of medium jet orifices, stirring construction operation is carried out through the following steps to achieve dynamic monitoring of the stirring effect. The construction method for dynamically adjusting the stirring parameters comprises the steps that a stirring construction site is prepared, and a stirring drilling machine is transformed; a dynamic monitoring scheme of the stirring construction process is determined; a stirring dynamic construction scheme is determined; stirring construction operation is carried out; and stirring construction operation is completed. Spectral parameters of slurry doped with mineral rock powder are collected by adopting the short-wave infrared spectrometer, and specific spectral parameters are extracted for analysis; and the mixing effect of the solidification material slurry and the soil body is calculated according to the distribution of mineral rock powder in returned slurry and the proportion of the surface area monitored by the short wave infrared spectrum, and then the construction parameters are changed to meet the design requirements.

Description

technical field [0001] The invention relates to the technical field of mixing pile construction, in particular to a construction method for dynamically monitoring the effect of large-diameter deep-layer mixing construction. Background technique [0002] With the continuous development and progress of science and technology, infrared spectrometer has a high detection level. Infrared spectrometer is an instrument that uses the absorption characteristics of substances to infrared radiation of different wavelengths to analyze molecular structure and chemical composition. Infrared spectrometers are usually composed of light sources, monochromators, detectors and computer processing information systems. Infrared spectrometers can not only identify compounds but also accurately determine the content of compounds, and can perform qualitative and quantitative analysis of samples. Petroleum, coal, environmental protection, customs, gem identification, criminal investigation identifica...

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Problems solved by technology

[0004]At present, the mixing effect of cement-soil mixing piles is inspected by drilling and coring, which is difficult to detect, low in efficiency and high in construction cost, and it belongs to post-mortem inspection. The problem is that even if the pile diameter is found to be too small, it is difficult to take remedial measures; if the pile diameter is found to be too large, it is impossible to make up for the waste of materials

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