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: 精河县| 岫岩| 两当县| 广宗县| 东乡| 通山县| 韶山市| 临泉县| 宜兰县| 仁布县| 齐河县| 元江| 荣成市| 黑山县| 武隆县| 鸡泽县| 浏阳市| 汾西县| 平江县| 普格县| 鞍山市| 金华市| 大理市| 葫芦岛市| 六安市| 博兴县| 石门县| 岱山县| 武平县| 常山县| 库尔勒市| 正蓝旗| 九台市| 正宁县| 岗巴县| 郁南县| 昌江| 永登县| 锦屏县| 成武县| 土默特右旗|