钻孔桩灌注桩常见施工质量问题
及防治措施
学校:吉林大学 专业:道路桥梁 姓名:
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二〇一〇年十一月
摘 要
钻孔灌注桩是地基处理的一种方法,因其自身特点在现代基础工程中显的越来越重要,钻孔灌注桩,属桩基础其要点包括:孔身结构设计,成孔方法的选择,削具的选择,工艺参数的确定,钻孔冲洗与护壁,钻孔质量保证措施。在施工中只有做好这几个方面,才能保证钻孔灌注桩的顺利完成。
关键字:钻孔灌注桩 成孔方法 工艺参数
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summary
Board cast-in –piace pille is a method of soil Treatment,by itself flavour,at today`s Foundation project.gyadually shape more and more important. Board cast-in–piace pille is a kind of pile Foundation,that main proints is:design piles stucture,select piled method ,pile equipment,drilling rinse & fender wall,pledge dyilling quality.Durring work on only do well these riquirement ,then achieve pledge bored cast-in-piace`s quality.
Key word:Board cast-in –piace pille select piled method
drilling rinse
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目录
第一章 工程概况 ................................................... 4
第一节 概述 ..................................................... 5 2 地形地貌 ...................................................... 5 第二章 桩基施工 .................................................... 6
1. .................................................................................................................. 第
一节 钻孔灌注桩施工.......................................... 6
(3)护筒埋设....................................................... 8 (4)钻机安装....................................................... 8 (5)泥浆制备....................................................... 8 (6)成孔........................................................... 9 (7)终孔.......................................................... 10 (8)清孔.......................................................... 10 (9)钢筋笼的制作和安装............................................ 11 (10)导管安装..................................................... 12 (11)二次清孔..................................................... 13 (12)灌注混凝土................................................... 13 (12)拔除护筒..................................................... 14 (13)凿除桩头,质量检验........................................... 14 第三章 施工注意事项及措施 ......................................... 15
第二节 安全生产、文明施工 ..................................... 25 第四章 总结
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