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: 霞浦县| 塘沽区| 广河县| 晋江市| 仪陇县| 扎兰屯市| 和田县| 东乡县| 贵定县| 方山县| 民和| 株洲县| 南京市| 赞皇县| 榕江县| 黑水县| 长沙县| 奇台县| 奉节县| 高平市| 高淳县| 浏阳市| 隆林| 眉山市| 鲁甸县| 宣恩县| 岳池县| 琼海市| 金溪县| 乐安县| 宁波市| 红桥区| 大同县| SHOW| 潼关县| 盐源县| 鄂托克前旗| 淮滨县| 玉门市| 鄄城县| 武乡县|