官术网_书友最值得收藏!

4 Surveying and ROW Clearance

4.1 General Provision

4.1.1 Prior to construction,stake handover work shall be conducted.The contents of stake handover work shall include line control stake,temporary and permanent bench mark provided along the line.Stake handover record shall be signed for approval by representative of each party.

4.1.2 Obstructions shall be located accurately before surveying.Corresponding measures shall be taken to avoid obstructions during construction.

4.1.3 Survey personnel shall position the pipeline centerline and right-of-way limits.Each coordinate of pile shall be rechecked.

4.1.4 Construction contractor check and supervision unit repetition survey method shall be used for construction survey.

4.1.5 The allowable deviation of construction survey shall be compliance with Current national standard requirements of-“Code for Engineering Surveying”GB 50026.

4.1.6 After completion of pipeline erection,as-built survey shall be conducted.The actual survey value shall be indicated on original design drawings.The pipeline as-built drawing and single line diagram shall be drawn up.

4.1.7 After backfilling of pipe trench,the coordination controlling pile,and turning pile shall be recovered to original position.

主站蜘蛛池模板: 北安市| 桂阳县| 威远县| 阿克陶县| 包头市| 澄迈县| 宜阳县| 乌拉特前旗| 龙川县| 盐津县| 同仁县| 张家界市| 莱阳市| 杭锦旗| 肃宁县| 博客| 广平县| 琼中| 仁寿县| 贡觉县| 江口县| 衡山县| 芮城县| 彝良县| 双牌县| 兴和县| 玉树县| 延川县| 澜沧| 溆浦县| 青岛市| 沛县| 高要市| 新昌县| 沙雅县| 田阳县| 荣成市| 屏东市| 亚东县| 府谷县| 通渭县|