軟土卸荷時(shí)土體強(qiáng)度變化試驗(yàn)研究
秦愛(ài)芳 Yu Li
- 摘 要
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秦愛(ài)芳 (上海大學(xué)土木系 200072)Yu Li (National University of Singapore Singapore 119260)
[提要] 以試驗(yàn)為基礎(chǔ)，探討了軟土地區(qū)基坑開(kāi)挖坑底被動(dòng)區(qū)土體處于卸荷狀態(tài)時(shí)，其強(qiáng)度變化的特征及范圍，結(jié)果對(duì)分析基坑穩(wěn)定、變形及確定坑底被動(dòng)區(qū)土體加固范圍等具有參考價(jià)值。
[關(guān)鍵詞] 軟土地區(qū) 卸荷狀態(tài) 強(qiáng)度變化 試驗(yàn)研究Through experiments, the change, characteristic and range of the soil strength are discussed, when the soil of passive area is unloading in the soft-clay area.During excavation of foundation pits, the results have some help to analyse stability and deformation in the pits and determine the range of stabilizing grout soil of the passive areas in soft-clay.
Keywords: soft-clay area; soil in unloading; strength change; examination study
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