揭阳市人民医院全科医生临床培养基地、儿科综合楼、门急诊住院综合大楼后注桩工程施工方案.doc
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揭阳市人民医院全科医生临床培养基地、儿科综合楼、门急诊住院综合大楼后注桩工程施工方案
揭阳市人民医院全科医生临床培养基地、儿科综合楼、门急诊住院综合大楼
后注桩工程施工方案
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities15
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
揭阳市人民医院全科医生临床培养基地、儿科综合楼、门急诊住院综合大楼
后注桩工程施工方案
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities15
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
四、施工方法
工程局部采用钻孔灌注桩桩端后注浆提高单桩坚向承载力，每桩对称设置三根外径Φ32mm，壁厚2.75mm电焊钢管作为注浆管，管与管之间连接采用外套外径Φ42mm，壁厚3.00mm钢管电焊连接，连接套管长度为100mm。注浆管的喷头部份采用“16孔单向阀”， “16孔单向阀”，注浆喷头焊接于每根注浆管下部。
五、 施工准备
（一）技术准备
1.熟悉施工图纸及设计说明和其它设计文件。
2.施工方案审核、批准已经完成。
3.根据施工技术、安全交底进行各项施工准备。
4.施工前应检查有关技术文件（注浆点位置、浆液配比、注浆施工技术参数，检测要求等），对有关浆液组成材料的性能及注浆设备的完好进行检查。
（二）材料要求
1.水泥：用强度等级PO42.5MPa普通硅酸盐水泥。
2.水：采用一般饮用淡水，但不应采用含硫酸盐大于0.1%、***化钠大于0.5%以及含过量糖、悬浮物质、碱类的水。
灌浆一般用净水泥浆，水灰比控制在0.5-0.65，每轮次注浆先用0.65水灰比，然后逐渐减小水灰比，最后采用0.5水灰比进行灌浆。水泥浆按水泥量的0.7％掺入FDN-Z减水剂和按水泥量的6.0％掺入SY-G膨胀剂。
3.主要机具
机具
揭阳市人民医院全科医生临床培养基地、儿科综合楼、门急诊住院综合大楼
后注桩工程施工方案
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities15
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
揭阳市人民医院全科医生临床培养基地、儿科综合楼、门急诊住院综合大楼
后注桩工程施工方案
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities15
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
四、施工方法
工程局部采用钻孔灌注桩桩端后注浆提高单桩坚向承载力，每桩对称设置三根外径Φ32mm，壁厚2.75mm电焊钢管作为注浆管，管与管之间连接采用外套外径Φ42mm，壁厚3.00mm钢管电焊连接，连接套管长度为100mm。注浆管的喷头部份采用“16孔单向阀”， “16孔单向阀”，注浆喷头焊接于每根注浆管下部。
五、 施工准备
（一）技术准备
1.熟悉施工图纸及设计说明和其它设计文件。
2.施工方案审核、批准已经完成。
3.根据施工技术、安全交底进行各项施工准备。
4.施工前应检查有关技术文件（注浆点位置、浆液配比、注浆施工技术参数，检测要求等），对有关浆液组成材料的性能及注浆设备的完好进行检查。
（二）材料要求
1.水泥：用强度等级PO42.5MPa普通硅酸盐水泥。
2.水：采用一般饮用淡水，但不应采用含硫酸盐大于0.1%、***化钠大于0.5%以及含过量糖、悬浮物质、碱类的水。
灌浆一般用净水泥浆，水灰比控制在0.5-0.65，每轮次注浆先用0.65水灰比，然后逐渐减小水灰比，最后采用0.5水灰比进行灌浆。水泥浆按水泥量的0.7％掺入FDN-Z减水剂和按水泥量的6.0％掺入SY-G膨胀剂。
3.主要机具
机具
揭阳市人民医院全科医生临床培养基地、儿科综合楼、门急诊住院综合大楼后注桩工程施工方案
