通道、涵洞和圆管涵施工方案.doc

通道、涵洞和圆管涵施工方案

一、   工程概况：略
二、   施工准备：
（1）、清除杂物，整理场地；（2）、清查安装主要的施工机具；（3）、安装好施工现场水电供应设施；（4）、合理组织施工，做到责任明确，分工合理；（5）、准备足够的施工所需用的材料。
三、   施工方案：
（一）、通道及钢筋砼盖板涵：
  1）、施工放样。仔细对施工图纸进行复查，领会设计意图。根据图纸确定的构造物的位置和标高，准确计算结构物中桩坐标和轴线方向，然后根据计算的具体位置进行施工放样，为便于开挖后的检查校核，基础轴线控制桩应延长至基坑处加以固定。放样完成后，根据基础的结构尺寸放出结构基础的边线，申请驻地监理工程师复查，得到确认之后，方可进行基坑开挖。
2）、基坑开挖。
A、     根据现场施工设备条件和施工环境，基础开挖采用挖掘机开挖，人工配全修理；开挖时派出专门的测量人员及时测出其基底高程，防止超挖现象发生。对于有地下水的区域，基础开挖时在基坑四周挖集水沟，以保持良好的排水，确保在挖方的
Channels, culverts and pipe culvert program

1, Project Overview: A Brief
Second, construction preparation:
(1), debris removal, site preparation; (2), installation of major construction equipment inventory; (3), installed at the construction site water supply facilities; (4), reasonable organization of construction, be accountable, and reasonable division of labor; (5), to prepare enough materials required for construction.
Third, the construction program:
(A), channel and reinforced concrete Culvert:
  1), loft construction. Carefully review the construction drawings, understanding of design intent. Drawings to determine the structures according to the location and elevation, accurate calculation of structure coordinates and the axis of pile, and then calculate the specific location for construction setting, to facilitate excavation of the check verification, based axis control should be extended to the base of pile Pits to be fixed. Setting is completed, according to the structure based on size of the structural basis of the sideline release, resident supervision engineer for review, was confirmed before proceeding with excavation.
2) excavation.
A, construction equipment, according to the site conditions and construction environment, based on excavation by excavator excavation, artificial with all repairs; excavation specialist surveyors sent out its base elevation measured in time to prevent the phenomenon of super-dig. For ground water areas, based around the excavation pit dug in the gullies, in order to maintain good drainage, to ensure that excavation of