Large-area deep soft foundation graded filling construction stability control method

Abstract

The invention provides a large-area deep soft foundation graded filling construction stability control method. The control method specifically comprises the following steps: selecting a representativeprofile in a stockpiling site to establish a calculation model, checking the overall stability of a stockpiling site foundation, and starting material stockpiling after the requirement is met; in thematerial stacking process, collecting monitoring data and calculating a designed settlement value Su; predicting a corresponding time TU; continuously collecting monitoring data and the monitoring settlement value at the TU moment; comparing a horizontal displacement monitoring value XU at a supercharge preloading edge with a horizontal displacement design value X at the supercharge preloading edge, carrying out next-stage stacking when the requirement that XU is less than or equal to X is met, and repeating the above steps until a designed maximum stacking height is reached when the next-stage stacking is carried out. According to the method, the design is checked by utilizing the soil property investigation reports and the measured data of each stage, and the information is fed back tothe construction in real time, so that the loading time can be effectively controlled, and safe, rapid and high-quality informationized graded construction guidance is realized.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering foundation treatment design, in particular to a method for controlling the stability of large-area, deep, thick and weak foundation graded filling construction. Background technique [0002] Due to the consideration of transportation costs, raw material yards are generally located in coastal, floodplain, or even inland lake and pond landforms. The foundation soil in these landforms is generally very weak, which can easily cause foundation soil instability and cause huge economic losses. According to the characteristics of raw materials site with large foundation treatment area, sufficient surcharge sources, and low sensitivity to foundation settlement and deformation, from an economical point of view, drainage consolidation and reinforcement of soft soil foundations are carried out using preset drainage channels and graded surcharge preloading. Has become one of the most economica...

AI Technical Summary

Problems solved by technology

[0002] Due to the consideration of transportation costs, most of the raw material yards are located in coastal, floodplain or even inland lake and pond landforms. The foundation soil on these landforms is generally very weak, which can easily cause foundation soil instability and cause huge economic losses.

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