2021年农桥改造施工组织设计.pdf

《2021年农桥改造施工组织设计.pdf》由会员分享，可在线阅读，更多相关《2021年农桥改造施工组织设计.pdf（31页珍藏版）》请在淘文阁 - 分享文档赚钱的网站上搜索。

1、目录第一章、工程概况第二章、各分部分项工程的完整施工方案、质量保证措施第三章、劳动力、施工机械、工程材料进场计划第四章、施工总进度计划、工期保证措施第五章、施工现场平面布置图及施工道路平面图第六章、雨季施工措施第七章、地下管线及其他地上地下设施的加固措施精品w o r d 可编辑资料-第 1 页，共 31 页-第一 章、工程概况一、工程概况工程名称：XXXXXXXXX建设单位：XXXXXXXXXXX工程地址：XXXXXXXXX承包方式：市政总承包质量标准：合格工期要求：120 日历天工程内容：1、老桥状况XXXX位于 XXXXXXXX，XXXXX 老桥为 1-22m 钢架拱桥，在老桥北侧有一人

2、行桥，跨径为1-16m，与老桥平行，两桥净距。老桥面宽度为护栏+1m人行道+9m行车道+1m人行道+0.5m 护栏，全宽 12m。人行桥全宽4m，断面为护栏+3m人行道+护栏。老桥为单跨22m钢架拱桥，下部结构采用重力式桥台。根据该桥检测结果，拟对老桥拆除重建，人行桥为新建桥梁，仅拆除南侧护栏，保留护栏基座。2、改造方案拆除老桥，保留新建人行桥。跨径为1-25 米预制空心板梁，下部结构采用重力式夹石混凝土桥台及钢筋混凝土承台，基础采用12 根桩径为米的钻孔灌注桩。二、实施条件1、现场条件：现场条件已具备。2、法规条件：(1)、招标文件、工程量清单、施工图纸；(2)、我公司管理体系中有关工程设计

3、、施工的管理程序文件；(3)、国家现行有关工程建设施工的法律法规、规范性文件、技术规范及标准；(4)、国际公认的规范标准和国家现行有关工程施工和验收、材料验收的规程、规范、标准及管理条例。(5)、计价规范和技术规范精品w o r d 可编辑资料-第 2 页，共 31 页-文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码

4、:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1

5、M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码

6、:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1

7、M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码

8、:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1

9、M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9第二章、各分部分项工程完整的施工方案、方法、质量保证措施一、前期工程1、准备工作：?(1

10、)、首先熟悉图纸，弄清结构情况、水电及设备管道情况，地下隐蔽设施情况。(2)、对施工员进行安全技术交底加强安全意识。(3)、踏看施工现场熟悉周围环境、场地、道路、水电设备管路、建筑物情况等。(4)、清理施工场地，保证运输道路畅通。(5)、在拆除危险区设置警戒区标志。3、机械设备的准备：挖机、破碎机、运输车、拖车4、注意事项垃圾集中堆放，统一运走。运土杂料的汽车进出场应严格按市城管办的有关规定办理手续，对出场车辆一律冲洗清理车轮车身。施工时注意防噪、降尘措施，避免影响环境及施工的正常进行。拆除旧桥梁时，开挖之前和掘路期间必须与当地路政密切联系，互相配合，认真保护各种管线和公用设施，不得任意损坏，

11、如临时发现电缆应即停止开掘，负责保护并立即与有关管线单位联系，洽商安全措施。二、老桥拆除工程1、拆除原则：该桥临近居民区，桥址处交通繁忙，且要保留人行桥，老桥拆除难度高、风险大，施工安全要求高。为确保老桥拆除安全、快捷，特制定拆桥方案。总体原则为：安全第一、施工有序、平衡对称、化整为零。2、施工技术方案：老桥为单跨桁架拱，由于该河道不存在通航要求，并且有规划河道断面，在桥梁施工完毕后，需要对河道按照规划断面进行清淤处理。综合各方面因素考虑，我项目部将采用破除拱桥着力点，利用桥梁自重让桥梁整体坍塌至河道的拆桥方案。（一）施工顺序精品w o r d 可编辑资料-第 3 页，共 31 页-文档编码:

12、CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M

13、9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:

14、CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M

15、9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:

16、CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M

17、9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:

18、CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q91、结构拆除顺序：老桥包含：桥栏杆、护轮带、桥面铺装、微弯板、横隔板、拱肋对其结构进行分析，整座桥梁的着力点位于拱肋与桥台的接触点，故采取对每条拱肋与桥台的接触点用破碎机进行破除，然后利用桥梁自重，自行沉入河道内。2、平面顺序：自南向北依次拆除。3、肋梁拆除顺序：因人行桥需要保留，为了保证新建人行桥的稳定性，故采取由自南向北顺序逐步拆除。如下图所示：（二）施工方法、施

19、工工艺将破碎机停于道路西侧，将破碎炮头对准拱肋与桥台的着力点进行破除作业，待第一根拱肋与桥台脱离后依次往北进行破除，直至整座桥梁自然落于河道内。拆除肋梁 1拆除肋梁 2拆除肋梁 3拆除肋梁 4拆除肋梁 5精品w o r d 可编辑资料-第 4 页，共 31 页-文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T

20、8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4

21、ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T

22、8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4

23、ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T

24、8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4

25、ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9然后将破碎机开至塌落与河道内的桥梁上，对整座桥梁进行进一步破碎及肢解。将拆除物移运到岸边运送至指定

26、地点，并用打捞船清理河道中遗留的碎落物，还原河床断面，与环卫部门联系，弃运到环卫部门指定地点。三、桥梁工程1、施工准备施工前对施工所征用的土地的数量、地界进行核实，对施工可能影响到的建筑物、管线做好规避措施，根据实地情况确定出碴线路、弃碴方案以及防排水措施。认真检查施工所需要的材料、机具设备的完好性、使用功能和质量是否满足施工要求以及保证工期的需要，施工保障是否到位。2、钻孔灌注桩施工钻孔场地平整钻孔前平整场地，清除杂物，换除软土，夯打密实。钻机底座应置于坚实的填土上，以免产生不均匀沉降。场地的大小要能满足钻机的放置及混凝土运输设备等协调工作的要求。护筒埋设护筒用 58mm 的钢板制作，护筒内

27、径较桩径稍大3040cm。护筒的埋设深度不小于，护筒顶端高出地下水位，同时高出施工地面。护筒埋设应准确、稳定，护筒中心与桩位中心的偏差不得大于50mm，倾斜度偏差不大于1%，保证钻机沿着桩位垂直方向顺利工作，存储泥浆使其高出地下水位和保护桩孔顶部土层不致因钻杆反复上下升降、机身振动而导致坍孔。钻机就位立好钻架并调整和安设好起吊系统，将钻头吊起，徐徐放进护筒内。启动卷扬机把钻盘吊起，垫方木于钻盘底座下面，将钻机调平并对准钻孔，安装钻精品w o r d 可编辑资料-第 5 页，共 31 页-文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3

28、X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9

29、S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3

30、X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9

31、S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3

32、X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9

33、S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3

34、X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9盘，钻杆位置偏差不大于2cm。泥浆制备钻孔泥浆选用优质粘土，有条件时可优先采用膨润土制浆。为提高泥浆的粘度和胶体率可投入适量的烧碱或碳酸钠，浆液的比重、粘度、静切刀、酸碱度、胶体率、失水等指标要符合该地层护壁要求。成孔开钻时，要及时掌握地质变化情况，随时检查孔位中心、孔径、垂直度，发现问题及时处理，当钻孔深度达到设计深度后，要对钻孔的孔径，深度及垂直度做全面的检查，并填写检查表，对不合格的要通过修孔使其符合规范要求。冲击中，如遇坚硬漂卵石，宜采用中、大冲程，操作时

35、防止打空锤和大松绳。遇有表面不平整的漂石、硬岩时，应先投入粘土夹小片石，将表面垫平后钻进。冲击钻锥起吊和进出孔口时，严禁孔口附近站人，防止钻锥撞击发生伤人事故。钻进过程中应及时排除钻渣，并添加粘土造浆，使钻锥经常冲击新鲜岩层。清孔清孔处理的目的是抽、换原钻孔内泥浆，降低泥浆的相对密度、粘度、含砂率等指标，清除钻渣，减少孔底沉淀厚度，防止桩底存留沉淀土过厚而降低桩的承载力，为在泥浆中灌注混凝土创造良好的条件。清孔时，孔内水位要保持在地下水位以上。吊放钢筋笼吊放钢筋笼用吊车进行。注意不撞孔壁，防止坍孔，并防止将泥土杂物带入孔内，采用分段吊放，焊接钢筋笼时，先将下段挂在孔口，再吊上第二段进行搭接或帮

36、条焊接，逐段焊接逐段下放。吊入后应校正轴线位置垂直度，勿使扭转变形。钢筋笼定位后，在4h 内浇注完混凝土，防止坍孔。精品w o r d 可编辑资料-第 6 页，共 31 页-文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R

37、3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T

38、9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R

39、3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T

40、9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R

41、3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T

42、9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9导管插入导管用直径 300mm 的钢管，壁厚 4mm，每节长，配 12 节长 1 短管，由管端粗丝扣、法兰螺栓连接，接头处用橡胶圈密封防水，灌注砼前要进行水压试验，检查接头处密封情况。混

43、凝土浇注架由型钢做成，用于支撑悬吊导管，吊挂钢筋笼，上部放置混凝土漏斗，混凝土由进料斗经储料斗倒入漏斗，并随即卸入导管直接浇注。同时以一台吊车配合钻架吊放拆卸导管。混凝土要求粗骨料优先选用卵石，最大粒径不大于 40mm 且不大于导管内径的1/8 及钢筋最小净距的1/4。砂用级配良好的中砂。混凝土水灰比在，水泥用量不小于 350kg/m3，含砂率为 40%45%，坍落度为 1820cm，扩散度为 3438cm。混凝土初凝时间为34h。水下灌注浇注时先灌入首批混凝土，其数量经过计算，能把泥浆从导管中排出，并能把导管下口埋入砼，其深度不少于；开导管用混凝土隔水栓，隔水栓预先用8 号铁丝悬吊在混凝土漏

44、斗下口，当混凝土装满漏斗后，剪断铁丝，混凝土即下入到孔底，排开泥浆；随着浇注连续进行，随浇随拔管，中途停息时间不超过 15min，在整个浇注过程中，出料口伸入先灌注的砼内至少2m，且不得大于6m，利用导管内混凝土的超压力使混凝土的浇注面逐渐上升，上升速度不低于2m/h，灌注高度比设计桩顶标高高。护筒待砼抗压强度达到5mpa时拆除。3 承台施工、模板承台同样采用大面钢模，支架法施工，人工配合吊车就位，横肋采用双12 号槽钢，间距 50 厘米；采用 M12拉杆，拉杆间距竖50 厘米，横 50 厘米。模板内设内撑以保证结构物尺寸。模板立好后要清除模内杂物和钢筋上的油精品w o r d 可编辑资料-第

45、 7 页，共 31 页-文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8

46、T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4

47、 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8

48、T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4

49、 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8

50、T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4 ZR4T9S1I3Q9文档编码:CE8T8H2R3X8 HS9A3D1M9L4