灰土垫层的施工与检测
灰土垫层的施工与检测
摘要:本文结合工程实例论述了在湿陷性地基土地区进行地基处理的施工与检测,重点阐述了灰土垫层的施工与常用的检测方法,为类似工程的施工与检测积累了经验。
关键词:湿陷性灰土垫层施工检测
The dust breaker strip’s construction and examines
Li Aiping
(the Inner Mongolia Autonomous Region town construction hydrology center Huhhot 010010)
Abstract: This article unified the project example to elaborate was falling the foundation soil area to carry on the ground treatment wet the construction and the examination, elaborated with emphasis the dust breaker strip’s construction and the commonly used examination method, gained in the experience for the similar project’s construction and the examination.
key word: Falls the dust breaker strip construction to examine wet
1 工程概况
1.1工程简介
某工程位于内蒙古呼和浩特市和林格尔县境内,共建有8栋专家公寓,长度50—100m,宽度12—18m,地上高5层,无地下室,砖混结构。
1.2工程地质条件:场地内15m以上土层主要为黄土状粉土,其在5m以上存在非自重轻微(Ⅰ级)湿陷性,承载力特征值fak=120Kpa。参数见下表:
表1 场地土层参数一览表
1.3地基处理方案:将5m以上粉土全部清除,采用3:7灰土垫层进行换填处理,换填厚度2—3m。