摘要
通过对某市排水设施普查数据进行分析研究,得出当井底状况复杂时,《城市地下管线探测规程》对明显管线点埋深的测量精度要求已很难满足。数据分析显示,当井底状况较为复杂时(少量淤泥或积水)且管线点埋深在3m以下,排水管线点埋深的测量中误差的允许值建议取±10cm;埋深在3m以上时,排水管线点埋深的测量中误差允许值建议取±1/30 H(H为管线点的埋深);当井底状况极为复杂(淤泥较多、积水严重或水流湍急)时,排水管线点埋深测量限差建议按隐蔽管线点处理,建议取值为0.15 H。
Urban drainage pipeline as an important urban infrastructure,is an important material basis for urban development and people＇s life.The buried depth measurement of drainage pipeline point is the key and difficult point in drainage pipeline survey.With the analysis and study to the survey data of a city drainage facilities,this paper concludes that when the bottom hole ’s conditions are complex,the measurement precision,according to Procedure For the Detection of Underground Pipeline in City of buried depth of the obvious pipeline point is difficult to meet.Data shows that when the bottom condition is complex （a small amount of silt or water ） and pipeline point in the depth of 3 meters below,the permissible mean error should be ±10 cm;in the depth of 3 meters above,it should be 1/30H（H for the buried depth of pipeline point）;when the bottom hole conditions are extremely complex （more serious water and silt or swift）,the buried depth limiting error of drainage pipeline point depth suggestions be 0.1 5H as hidden pipeline point.
出处
《测绘工程》
CSCD
2016年第9期59-62,67,共5页
Engineering of Surveying and Mapping
关键词
复杂
排水管线
埋深
测量
精度
complex
drainage pipeline
buried depth
measurement
precision
