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发明名称
螺旋钻机钻孔喷射注浆扩底方法
摘要
本发明涉及一种建筑物基础桩施工方法,螺旋钻机钻孔喷射注浆扩底方法,该方法依次为,a、螺旋钻孔,采用悬浮履带式钻机或步履式钻机钻孔,b、提钻喷射注浆扩底,提钻同时向桩端喷射水泥浆完成扩底,边提钻边注浆达到设计要求,c、将钻杆提出地面放入钢筋笼,d、浇注砼成桩,该方法具有施工工艺简单、桩端承载力大,桩身强度高,施工无污染、无噪音、无振动等优点,适用范围广泛,可用于有无地下水土层作业、砂类土质效果更明显。
申请公布号
CN1356434A
申请公布日期
2002.07.03
申请号
CN01138939.7
申请日期
2001.12.24
申请人
曹兴明
发明人
曹兴明
分类号
E02D5/36;E02D5/44
主分类号
E02D5/36
代理机构
代理人
主权项
1、螺旋钻机钻孔喷射注浆扩底方法,其特征在于该方法依次为:a、螺旋钻孔,采用悬浮履带式钻机或步履式钻机钻孔,钻至设计深度;b、提钻喷射注浆扩底,提钻同时向桩端喷射水泥浆,边提钻边注浆,达到设计要求为止;c.钻杆提出地面放入钢筋笼;d、浇注砼成桩。
地址
150046黑龙江省哈尔滨市动力区通郊南路九号黑龙江省华岩地下工程有限责任公司
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