浙江长兴捷通物流有限公司码头扩建工程施工测量.doc

第04章 施工测量
4.1 概述
浙江长兴捷通物流有限公司码头扩建工程，分部、分项工程较多，在本工程的施工中，为了方便施工放样，便于施工测量控制，拟在业主提供的首级测量控制网点的基础上，根据工程实际施工需要，进一步建立工程施工测量平面控制网和高程控制网。
工程测量控制网在布设、施测之前需编制详细的《工程测量控制网布设、施测方案》报监理工程师审批。
4.2 工程测量微网的布设、施测及平差计算
4.2.1工程测量控制网的布设
1、工程测量控制网的布设依据
（1）业主提供的首级工程测量控制网；
（2）本工程施工平面图；
（3）有关的工程测量规范。
2、工程测量控制网的布设
工程测量控制网根据现场情况布设成闭合导线或符合导线。闭合点或符合点为业主提供的首级测量控制网点。
工程测量控制网的点位布设密度以能够满足施工现场的细部放样要求为准。导线边长大致相等。埋建测量标志
导线网点选在通视良好、交通方便、地基稳定且能长期保存的地方。视线要避开障碍物。对于能够长期保存、离施工区较远的点要考虑到图形结构和便于加密。直接用于施工放样的
Chapter No. 04 Construction Survey
4.1 Overview
Logistics Co., Ltd. Zhejiang Changxing Jetto terminal expansion project, division, sub-projects are more in the works, in order to facilitate the construction setting, easy to control construction survey, to be the heads of the owners based on survey control network , according to the actual construction project needs to further develop engineering construction survey control network and the elevation plane control network.
Engineering survey control network in the layout, construction survey required prior to the preparation of detailed "engineering survey control network, sampling program," reported supervising engineer for approval.
4.2 Micro-Network for Engineering Surveying, sampling and adjustment calculation
4.2.1 Engineering Survey Control Network
1, Engineering Survey Control Network based
(1) owners and the heads engineering survey control network;
(2) The construction plan;
(3) the engineering survey.
2, Engineering Survey Control Network
Engineering survey control network according to site conditions laid into a closed wire or line wire. Closed points, or conformity to the heads of the owners to provide survey control network.
Survey Control Network Spot Location density of detail to meet the construction site setting out requirements shall prevail. Traverse roughly equal. Buried survey mark established
Wire communication network chosen as a good and convenient, ground stability and can place long-term preservation. Line of sight to avoid obstacles. For the long-term preservation, distant point from the construction area, taking into account the structure and ease of graphics encryption. Construction Lofting directly