回填地区地基基础处理方式

回填地区地基基础处理方式回填地区地基基础处理方式 摘要：振冲碎石桩指用振动、冲击或水冲等方式在软弱地基将碎石或砂挤压入土孔中，形成碎石或砂与原有地基土所构成的密实的复合桩体。通过夯实、挤密、排水、胶结、加筋和热学等方法加固原有地基土，改良软弱地基土和特别地基土的工程特性。了解地层特性后，根据上部荷载要求，通过合适桩距在地基处理范围内布置碎石桩，独立基础和条形基础选用正方形、矩形或是等腰三角形布桩，对于大面积满堂处理则宜用等边三角形布桩。施工流程为：测量放桩位→振冲造孔→清孔→密实→排污，施工结束后间隔21~28d 即可采纳符合地基载荷试验进行质量检验。 关键词：振动；软弱地基；回填较厚 Abstract: The vibration crushed stone pile to vibration, shock or water in the form of soft foundation macadam and sand into the hole of the extrusion, forming a gravel or sand and original soil composed of dense composite pile body. Through compaction, compaction, cementation, drainage, reinforcement and thermal method to reinforce the original soil, improvement of soft soil foundation and special foundation soil engineering characteristics of. Understand the formation characteristics, according to the upper load, through the appropriate spacing of piles in foundation treatment layout within the scope of gravel pile, independent foundation and strip foundation selection of square, rectangular or isosceles triangle pile fabric, for a large area of overall treatment are advised to use of an equilateral triangle pile fabric. Keywords: vibration; soft ground; thick backfill 中图分类号：TU47 一、地基处理法的应用 近几年来，随着人口的不断增长，仅有的陆地已经满足不了人们的欲望，对土地的渴望让人们的视线投向海洋。大规模的填海造地项目也逐渐拉开了序幕，回填超过 5 年的填海地区也逐渐被政府规划用来建房建厂。但是浅层回填的地层地基势必满足不了上部结构的稳定要求，要想保证回填地区建筑的安全性能，不得不采纳人为处理的方式以提高地基基础的承载能力，在进展的驱动下，地基处理方式被...