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| 高速公路长板-短桩工法复合地基的理论与方法研究 |
| Study on the Theory and Method of D-M Processing for Expressway's Composite Foundation |
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| DOI：10.3969/j.issn.1671-5322.2007.02.019 |
| 中文关键词: 公路 长板-短桩工法 复合地基 理论与方法 研究 |
| 英文关键词: expressway D-M processing composite foundation theory and method study |
| 基金项目:江苏省交通科学研究计划 |
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| 中文摘要: |
| 高速公路深厚软土地基的加固处理是目前软土地区公路或高速公路建设中的技术难点之一.采用长的塑料排水板(或砂井)与短的水泥土搅拌桩联合处理方法(长板-短桩工法,又称D-M工法)能有效提高地基的稳定性,将工后沉降控制在一定的范围内.另外,通过桩和板的间距、长度以及预压方式的调整使不同段落之间沉降速率的协调成为可能. |
| 英文摘要: |
| At present,the consolidation processing of the deep soft-soil foundation for expressway is one of the technical difficulties on the highway or expressway construction at the soft-soil area.The Article puts forward the method of joint processing the long plastic draining plate(or sand well) and the short mixed soil-cement pile(also called D-M Processing),which can control the after-work settlement.In addition,by adjusting the distance between the pile and the plate,the lengths and the prepressing mode,it would be possible to coordinate the settlement speed of different parts. |
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