真空预压软基处理方案 - 图文

广州南沙物流保税区2－1区软基工程施工组织设计

目 录

第1章 总则 ······························································································ 3

1. 编制依据 ···································································································· 3

第2章 工程概述 ························································································ 4

2.1 工程概况 ··································································································· 4 2.4 施工概要 ··································································································· 7

第3章 自然条件 ························································································ 8

3.1 地理位置 ··································································································· 8 3.2 气象········································································································· 8 3.3 水文········································································································ 11 3.4 地质条件 ·································································································· 12

第4章 施工总体布置 ················································································ 14

4.2 项目经理部 ······························································································· 14 4.4 人员、船机设备、材料进退场 ······································································· 14 4.5发电机房及材料仓库 ··················································································· 15 4.6 储油罐 ····································································································· 15 4.7 施工现场生活设施 ······················································································ 15 4.9现场五牌一图 ···························································································· 16 4.10排水设施布置 ·························································································· 16

第5章 施工顺序与施工工艺 ······································································· 17

5.1 各区总体施工顺序 ······················································································ 17 5.2 各区施工工艺流程 ····················································································· 17 5.3 主要施工工艺及方法 ·················································································· 18

第6章 施工监测 ······················································································ 44

6.1监测目的和监测项目 ··················································································· 44 6.2 施工前静力触探 ························································································· 44 6.3表层沉降监测 ···························································································· 45 6.4 孔隙水压力监测 ························································································· 46 6.5施工前后钻孔取土 ······················································································ 47 6.6加固前后现场十字板剪切试验 ······································································· 48 6.7质量保证措施 ···························································································· 49 6.8加固效果的评价依据 ··················································································· 50 6.9监测及试验工程量 ······················································································ 51 6.10测量仪器设备表 ······················································································· 52

第7章 施工进度计划 ················································································ 53

7.1施工进度计划安排原则 ··············································································· 53 7.2工期安排 ································································································· 53 7.3施工总体计划（横道图、网络图） ································································· 53 7.4工期进度保证措施 ····················································································· 54 7.5要测量试验仪器表 ······················································································ 54

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广州南沙物流保税区2－1区软基工程施工组织设计

7.6要材料使用计划表 ······················································································ 54 7.7原材料送检计划 ························································································· 54

第8章 施工现场组织与管理 ······································································· 55

8.1项目组织机构 ···························································································· 55 8.2项目经理部规章制度 ··················································································· 61 8.3项目经理部主要管理人员情况表 ···································································· 62

第9章 工程质量保证体系和措施 ································································· 63

9.1 质量方针 ·································································································· 64 9.2 质量目标 ·································································································· 64 9.3质量体系认证 ···························································································· 64 9.4 质量保证体系框图 ······················································································ 65 9.5质量管理组织机构 ······················································································ 68 9.6工程质量保证措施 ······················································································ 68 9.7 分项工程质量保证措施 ················································································ 71

10章 施工进度保证措施 ············································································ 76

10.1组织保证措施 ·························································································· 76 10.2 物资保证措施 ·························································································· 77 10.3 人员、设备保证措施 ················································································· 77

第11章 施工安全保证体系和保证措施 ························································· 78

11.1 安全生产的原则和目标 ·············································································· 78 11.2 安全生产管理组织机构、保证体系和安全生产责任 ··········································· 78 11.3 安全工作程序 ·························································································· 81 11.4 奖励及处罚 ····························································································· 81 11.5 员工安全教育及培训 ················································································· 82 11.6 事故的损害报告，调查及分析······································································ 83 11.7 安全检查及核查 ······················································································· 83 11.8 本工程的安全风险评估 ·············································································· 83 11.9 施工区、生活区的安全及卫生控制 ································································ 84 11.10 施工现场强制性安全要求 ·········································································· 84 11.11 应急计划和措施 ····················································································· 86

第12章 环境保护措施及文明工地建设 ························································· 88

12.1 对环保和文明施工承诺 ·············································································· 88 12.2 施工作业区环保和文明施工措施 ··································································· 89 12.3 环境、环保、卫生管理 ·············································································· 90 12.4 生活区后勤场区管理措施 ··········································································· 90 12.5 配合环境保护的施工措施 ··········································································· 91

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广州南沙物流保税区2－1区软基工程施工组织设计

第1章 总则

1. 编制依据

本施工组织设计主要依据以下文件编制：

1、《广州南沙物流保税区2-1区软基处理工程招标文件》广州南沙国际物流有限公司2003.11；

2、《广州南沙物流保税区2-1区软基处理工程施工图设计 说明 书》华南理工大学建筑设计研究院勘察工程有限公司2003.10；

3、《广州南沙物流保税区2-1区软基处理工程施工图图纸》华南理工大学建筑设计研究院勘察工程有限公司2003.10；

4、《广州南沙物流保税区2-1区软基处理工程施工招标答疑会纪要》广州南沙国际物流有限公司2003.11；

5、《港口工程地基规范》（JTJ250-98）；

6、《水运工程土工织物应用技术规程》 (JTJ/T239-98)； 7、《港口工程质量评定标准》 (JTJ221-98)； 8、《疏浚工程技术规范》（JTJ319-99）； 9、《疏浚工程质量检验评定标准》（JTJ234-96）； 10、《塑料排水板施工规程》 (JTJ256-96)； 11、《塑料排水板质量检验标准》 (JTJ257-96)；

12、《真空预压法加固软土地基施工技术规程》 (HG/T20578-95)； 13、土工合成材料（GB/T17630-17642-1999）； 14、土工合成材料 塑料土工隔栅（GB/T 17689-1999）；

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广州南沙物流保税区2－1区软基工程施工组织设计

第2章 工程概述

2.1 工程概况

该工程位于广州南沙龙穴岛围垦区内西南侧（即南沙港区一期工程4个码头用地的后方），紧邻龙穴岛水道 。

目前陆域吹填工作已完毕，吹填竣工标高为+5.80m（高程系统为当地理论最低潮面），在吹填后的场地上进行地基加固处理。地基处理方案为真空预压加固方案。

本次软基处理区域处理面积约19.21万m2，交工标高+4.70m。 施工内容有以下项目： ①铺土工布、土工格栅 ②铺砂垫层 ③插塑料排水板 ④泥浆搅拌桩 ⑤真空预压

⑥结束预压、场地平整。 2.2 设计简介

1、拟建港区原为围海滩涂地基，区内原地面标高+1.0m~+2.8m（高程零点为当地理论最低潮位，以下同），平均标高+2.0m，吹填至标高+5.8m，在其上进行地基加固。

2、地基处理全部采用真空预压法，大面积施工前，先进行典型段(试验区)施工，根据取得的参数指导大面积施工，施工中进行加固效果检验。

3、加固要求：

1）处理后的地基能满足使用荷载46kPa的要求，其残余沉降量小于250mm。 2）软基处理交工面标高+4.70m。

4、真空预压密封膜采用2层聚乙烯（或聚氯乙烯）薄膜，厚度要求大于0.12~0.14mm。真空传递滤管采用直径为2英寸的uPVC管，壁厚δ≥1.2mm，主干管采用直径为3英寸的uPVC管，所有管路埋于砂垫层顶面下约30cm深，滤管布置间距不大于6.5mm。膜下真空度观测表埋设于具代表性的两滤管平行距离的中间，按约每8

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