抗浮锚杆施工方案

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1、施工方案第一章施工条件··············································1一、编制依据··················································1二、工程概况··················································1第二章抗浮桩(锚杆)设计与基本试验·····························1一、抗浮锚杆结构设计主要参数···························

2、·······1二、抗浮锚杆拉力设计参数······································1三、抗浮锚杆基本试验···········································1第三章施工组织和措施········································220施工方案一、施工准备··················································2二、施工进度安排·························

3、·····················3三、抗浮桩锚杆施工工艺流程、技术参数··························4第四章工程施工质量保证措施··································7一、质量控制措施··············································7二、质量保证具体内容··········································7三、材料质量要求及节约措施························

4、············8第五章文明施工与安全措施····································820施工方案一、安全生产、文明施工········································8二、安全保证体系及措施········································9三、环保文明施工保证体系及措施·······························10第一章施工条件1、编制依据1、中南建筑设计院设计的《宜昌市中心人民医院门诊急诊、

5、全科医师培训基地综合楼》施工图纸。2、地质勘察报告：湖北省鄂西地质工程勘察院提供的《宜昌市中心人民医院门诊急诊、全科医师培训基地综合楼工程勘察报告》，报告编号为：306010059。3、《岩土锚杆锚索技术规程》（CEC22:2005）。4、宜昌市政府及行业行政主管部门对建筑施工管理的有关规定。2、工程概况20施工方案宜昌市中心人民医院门诊急诊、全科医师培训基地综合楼是一座集门诊、手术、住院及培训为一体的综合大楼，项目位于宜昌市夷陵大道183号，该项目占地面积5398平方米，建筑面积73239.47平方米。其中地上2

6、6层，建筑面积61104.48平方米；地下2层，建筑面积12134.99平方米。地下二层局部为甲类人防地下室,防护级别为核6级，常6级，平时为地下停车，战时为人员掩蔽所。总建筑高度为99.98m，设计±0.000标高相当于黄海绝对高程54.900米。本工程属A级高度高层建筑，采用钢筋混凝土框架剪力墙结构。基础采用柱下独立基础、墙下条形基础及局部筏板基础。裙楼区域的地下室局部外墙及独立基础下设置抗浮锚杆。第2章抗浮桩(锚杆)设计与基本试验1、抗浮锚杆结构设计主要参数1、抗浮锚桩(杆)总数：168根。2、钻孔体：锚孔直

7、径200mm，自基础垫层绝对顶标高至确保锚杆体入强风化岩石为3500mm或入中风化岩石为3500mm时的钻孔深度为为锚杆钻孔深度。3、固结体：采用M30水泥砂浆，水泥强度应大于32.5Mpa，且宜采用普通硅酸盐水泥。4、锚杆：采用锚筋3Φ28（HRB400），点焊成束，见示意图。5、锚杆在底板与岩层界面上下各200mm范围内涂环氧树脂减少锚杆锈蚀。2、抗浮锚杆拉力设计参数1、锚杆锚固段长度及抗拔承载力特征值：强风化岩石为5500mm，抗拔承载力特征值为270KN；中风化岩石为3500mm，抗拔承载力特征值为350K

8、N。2、通过基本试验，确定能满足设计承载力。3、验收试验：锚杆验收抽样数为锚杆总数的5%，且不少于6根，最大试验荷载应取锚杆杆体抗拔极限承载力特征值的2倍。3、抗浮锚杆基本试验20施工方案锚杆基本试验是为设计者确定锚杆极限承载力等设计参数的重要依据，地质条件的复杂性、施工手段和技术水平的差异、本工程的重要性，在施工前，会同建设方、监理方、设计方共同在现场选取