混煤仓基于静压桩托换的止沉纠倾研究

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中图分类号：TU478 文献标志码：A DOI： 10.15935/j.cnki.jggcs.202504.0016

AbstractBased on an actual project，static pressure pile underpinning technology was employed to reinforce the foundation of the mixed coal bunker，while the forced setlement method wasapplied to rectify its structural inclination. However，controlling foundation settlement proves challenging due to numerous factors influencing diffrential setlement in the composite foundation during rectification，and ensuring the stability of rectification effectsremains difficult.To address these issues，this study systematically investigates antisinking and rectification techniques for the mixed coal bunker under variable amplitudeand heavy loads through field tests and numerical simulation.The research demonstrates that：（1） static pressure piles satisfy foundation reinforcement requirements as verified by single pile bearing capacity tests；（2） excavationof pilot tunnelstriggers stress release-induced setlement in the composite foundation，with settlement deformation positively correlating to excavation volume，where foundation setlement significantly concentrates around guide pits during forced settlement rectification while decreasing linearly with depth； （3） sensitivity analysis rankskey rectification factorsas follows：rectification load' exhibitsthe highest influence，followed by underpinning range，excavation area，and excavation depth.

Keywordsmixed coal bunkers，nonuniform setlement，static pressed pile，landing rectifying inclination， main controlling factors of rectification

0 引言

混煤仓是用于存储原煤、沫煤等煤炭的构筑物，混煤仓的安全性直接影响煤炭工业的正常生产。（剩余14073字）