首页> 外文期刊>Australian Geomechanics >DEEP SOIL MIXING FOR WHITEMAN BRIDGE, REID HIGHWAY EXTENSION, MIDDLE SWAN, PERTH
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DEEP SOIL MIXING FOR WHITEMAN BRIDGE, REID HIGHWAY EXTENSION, MIDDLE SWAN, PERTH

机译:白土大桥,里德高速公路延伸,中天鹅,珀斯深层土壤混合

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摘要

The Reid Highway Extension project from West Swan Road to Great Northern Highway in Perth, Australia was completed in February 2010. The project includes a new bridge over the Swan River, named the Whiteman Bridge, and associated bridge approach embankments of about 8 m height. The approach embankments are underlain by a relatively weak and compressible silty clay/clayey silt zone of up to 4 m thickness. This stratum was predicted to undergo relatively large time-dependent settlements unless ground improvement was carried out. To alleviate the effect of relatively large time-dependent differential settlements between the bridge abutment and bridge approach embankment, Deep Soil Mixing (DSM) ground improvement was carried out below the approach embankments and abutments, combined with surcharge preloading of the approach embankments. This ground treatment enabled the abutments to be supported on shallow spread footings.
机译:从西天鹅路到澳大利亚珀斯的Great Northern Highway的里德高速公路扩展项目于2010年2月完成。该项目包括横跨天鹅河的新桥,称为怀特曼桥,以及相关的大约8 m高的桥路堤。引路堤的下面是一个相对较弱且可压缩的粉质粘土/粘土粉砂带,厚度最大为4 m。除非进行地面改善,否则预计该层将经历相对较大的时间依赖性沉降。为了减轻桥基和桥面路堤之间较大的时变差异沉降的影响,在靠近路堤和基台下方进行了深层混合土(DSM)地面改良,并结合了路堤的附加预载。这种地面处理使基台可以支撑在浅铺基上。

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