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1、珠海长隆海洋王国04.201石屑回填施工方案编制：复核：审核：日期：广东水电二局股份有限公司一、工程概况：（一）建筑概况本工程为珠海投资发展有限公司拟建珠海横琴长隆海洋王国04.201 工程，建筑场地位于珠海市横琴新区富祥湾内，北侧与进村路相隔为正在兴建的04 区，场地为滨海砂堤地貌，进村路与环岛路相通，交通便利。04.201 为北极熊展览馆，地下一层、地上一层建筑，采用预应力管桩基础。本工程主要基坑开挖深度约4.85m（不考虑承台及垫层厚），基坑面积约为3684 m2，周长约 240m，包括了北极熊展览馆及水上过山车部分挡土墙的土方开挖,基坑边采取搅拌桩止水(2550400)，搅拌桩长度不小
2、于12m。我公司目前主要施工任务为基础施工与基坑桩承台到-1层顶板中维生管道石屑回填施工，砂石回填密实度理论上可达到95%以上，砂石回填提高了回填施工的密实度，回填石粉对维生管道系统较稳定，提高回填土层工程质量，基坑石屑回填施工为上部钢筋混凝土框架施结构提供工作面，以便于上部结构施工的顺利开展。（二）结构概况基础形式采用桩承台基础。结构形式为框架结构。（三）工作顺序排水基层清理石屑回填平整、夯实一、施工准备（一）作业条件1、施工前应根据工程特点、回填石屑种类、密实度要求、施工条件等，合理地确定填方石料含水量控制范围、虚铺厚度和压实遍数等参数，其参数应通过压实试验来确定。2、铺筑前，应组织有关单
3、位共同对基础、维生管道等进行检查验收并办理隐检手续。3、在地下水位高于基坑（槽）底面的工程中施工时，应采取排水或降低地下水平的措施，使基坑（槽）保持无水状态。4、检查基槽（坑）、管沟的边坡是否稳定，并清除基底上的浮土、杂物和积水。5、确定好土方机械、车辆的行走路线，应事先经过检查，必要时要进行加固加宽等准备工作。同时要编好施工方案。6、熟悉图纸文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码
4、:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8
5、HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10
6、ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档
7、编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R
8、8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P1
9、0 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6
10、文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6（二）施工机具挖土机、自卸汽车、翻斗车、压路机、铲土机、蛙式打夯机、铁锹、5m 钢尺、胶皮管、尖、平头铁锹、手推车、铁镐、撬棍、钢尺、小线等。二、材料与质量要求（一）石屑回填材料要求1、回填石屑，其最大粒径不得超过50mm（应取得设计单位同意），含水率应符合规定。2、对基础回填前应清除周围的积水和杂物，要求回填均匀，分层夯实，压实系数不小于0.97.3、石屑材料，不得含有草根、树叶、塑料袋等有机杂物及垃圾。用做排水固结地基时，含泥量不宜超过 3%。石屑最大粒径不得大于垫层或虚铺厚度的2/3，并不宜大于 50mm。
11、（二）石屑回填质量要求1、基底处理必须符合设计要求或施工规范的规定。2、材料石屑，拌合均匀，虚铺厚度符合规定，夯压密实。3、分层留接槎位置正确，方法合理，接槎夯压密实，平整，允许偏差项目，见表1-10。石屑回填工程地基的允许偏差表 1-10 项次项目允 许 偏差（mm）检 验 方 法1 顶面标高 10 用水准仪或拉线和尺量检查2 表面平整度15 用 2m 靠尺和楔形塞尺尺量检查三、施工方案（一）工艺流程基坑底板清理、验收检验石屑质量分层铺石屑、耙平洒水夯打密实检验密实度修整找平验收（二）操作工艺1、铺筑前，应将基底表面上的树根、垃圾等杂物都处理完毕，清除干净。2、对级配石屑进行技术鉴定，其质量
12、均应达到设计要求或规范的规定。3、分层铺筑石屑。或按表1-8 选用砂石每层的铺筑厚度和压实偏差表 1-8 压实机具每层铺土厚度（mm）每层压实遍数（遍）平碾200250 34蛙式打夯机200250684、碾压机械压实填方时，应控制行驶速度，一般平碾不应超过：2km/h 文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文
13、档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5
14、R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P
15、10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A
16、6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6
17、C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V
18、5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K
19、4A65、铺筑石屑的每层厚度，一般为2025cm，不宜超过 25cm，分层厚度可用样桩控制。视不同条件，可选用夯实或压实的方法。大面积的石屑，铺筑厚度可达35cm，宜采用 610t 的压路机碾压。6、石屑地基底面宜铺设在同一标高上，如深度不同时，基土面应挖成踏步和斜坡形，搭槎处应注意压（夯）实。施工应按先深后浅的顺序进行。7、在机械施工碾压不到的回填部位，应配合人工推料填充，用蛙式或柴油打夯机分层夯打密实。8、石屑回填每层压实后，应按规定规定进行环刀取样，测出石屑的质量密度；达到要求后，再进行上一层的铺筑。9、填方全部完成后，应进行表面拉线找平，凡超过标准高程的地方，及时依线铲平；凡低于标准高
20、程的地方，应补石屑找平夯实。10、洒水：铺筑级配石屑在夯实碾压前，应根据其干湿程度和气候条件，适当地洒水以保持砂石的最佳含水量，一般为5%8%。11、夯实或碾压；夯实或碾压的遍数，由现场试验确定。用蛙式打夯机时，应保持落距为 400500mm，要一夯压半夯，行行相接，全面夯实，一般不少于6 遍。采用压路机往复碾压，一般碾压不少于 3 遍，其轮距搭接不小于50cm。边缘和转角处应用人工或蛙式打夯机补夯密实。四、施工注意事项1、施工时，基础承台、基础梁板、维生管道达到一定强度后，才能进行回填石屑的施工，以免对结构基础造成损坏。2、基础回填石屑，必须清理到基础底面标高，才能逐层回填。3、室内坑槽(沟
21、)不得用含有杂物的石屑回填。五、安全生产措施1、自卸车运输过程中避免碰触钢筋、架体。2、挖掘机装载时回转半径内不允许站人。3、回填石屑夯实时一人操作打夯机，一人拖打夯机电缆，避免打夯机夯击电缆。文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4
22、A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N
23、6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3
24、V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7
25、K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T
26、7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6文档编码:CK4T7N6C5R8 HQ6S7M3V5P10 ZR7R1O7K4A6