Construction method for dynamically monitoring stirring construction effect

Abstract

The invention discloses a construction method for dynamically monitoring the 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 gamma ray detector and a plurality of medium jet orifices, stirring construction operation is carried out, the stirring effect is dynamically monitored, and stirring parameters are dynamically adjusted. The method comprises the following specific 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. According to the method, a mathematical model of a natural gamma value and the volume of the curing material slurry is established by adopting a gamma ray detection theory, and the slurry return flow of the curing material slurry is calculated by detecting the natural gamma value of a soil body around the gamma ray detector, so that construction parameters are changed to meet 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 mixing construction effect. Background technique [0002] Soft soil foundations are often distributed along my country's coasts and river basins. Under the dynamic effects of load, circulation, and vehicles, foundation settlement is the main form of foundation failure, which often leads to quality problems in highways, railways, airports, and docks. Composite foundations are the most commonly used in various methods, and composite foundations are generally constructed using the construction technology of cement-soil mixing piles. Engineering practice shows that cement-soil mixing piles have the advantages of simple construction, rapid construction, and small disturbance, which can effectively improve the stability of soft soil foundations and reduce and control settlement. This method is to use materials such a...

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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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