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    李慶鋼，  張海東，  劉天書
    （遼寧省建筑設(shè)計(jì)研究院，沈陽110005）

[摘要] 對(duì)于地基主要受力層范圍內(nèi)既有雜填土，又局部存在軟弱下臥夾層的復(fù)雜地質(zhì)條件，設(shè)計(jì)上分別采用換填墊層法、調(diào)整基礎(chǔ)底面積和高壓噴射注漿法等不同的地基處理方法來滿足上部結(jié)構(gòu)對(duì)地基承載力和變形的要求。著重介紹了采用高壓噴射注漿法處理軟弱下臥夾層，在夾層高度內(nèi)形成復(fù)合地基的設(shè)計(jì)和質(zhì)量檢驗(yàn)方法。
[關(guān)鍵詞] 軟弱下臥夾層；復(fù)合地基；高壓噴射注漿法；換填墊層法

    Ground Treatment of the Electric Power Dispatching and Trade Center of Northeast Grid
    Li Qinggang, Zhang Haidong, Liu Tianshu
    ( Liaoning Provincial Building Design & Research Institute,  Shenyang 110005,  China)

Abstract: There are random fill and locally existing soft interlayer in the mainly supporting layers of subgrade, so the different ground treatment methods of sand cushion substituting the random fill, adjusting foundation dimensions and jet grouting reinforcing the soft interlayer were adopted to satisfy the requirements of subgrade bearing capacity and deformation. The methods of design and quality inspection for the composite subgrade formed from using jet grouting to treat the soft interlayer were described in detail.
Keywords: soft interlayer; composite subgrade; jet grouting; cushion