文档介绍：测量实训总结报告
ZHEJIANG WATER CONSERVANCY AND HYDROPOWER
COLLEGE
《工 程 测 量》
教学实****成果
,说明书、?报告、论文,
系别 :建筑工程系
专业 :cial terms, effectively preventing individual credit legal risk. Personal credit business relates to arrive (MS) charge registratio
实训过程
第一部分:区域平面控制测量
1、要求
,1,由于测区范围很小,故采用独立直角坐标系,以闭合导线形式建立图根级的平面控制网。
,2,用5″全站仪施测。
,3,精度要求,方位角闭合差?10″?n,导线全长相对闭合差为1,14000.
2、外业工作
导线测量的外业工作包括,踏勘选点及埋设标志、角度测量、边
长测量。
1】 选点、做标记
a, 导线点应均匀分布,导线边长应大致相等,避免前后边
长相差太大。
b,控制点应选在土质坚实、便于保存标志和安置仪器、视野开
阔便于施测
部的地方,相邻导线点间通视良好,便于测角量距。
C,图根控制点个数不少于6。
d,逆时针方向对闭合导线点进行编号。
e,控制点选定后,立即做好标志。
strict implementation of the principle of double handling. Through the Government housing, land division system inquiry real estate mortgage registration, can be handled by an account executive. CDs, bonds, bank acceptance bills and other valued document pledges, pledge of movable property as well as unable to query through the system of real estate mortgage, you must double the mortgage, pledge registration, queries andall levels of the Bank shall not and the borrowers ' credit operations entered into by the parties, such as non-rich text contract (Agreement), shall not be in the format of the contract (Agreement) free to agree special terms, effectively preventing individual credit legal risk. Personal credit business relates to arrive (MS) charge registratio
2】测距
导线边长用5″全站仪施测,单程测2测回,照准一次读2次为一测回。同一测回2次读数之差应小于20mm,测回间较差应小于30mm。
3】水平角观测
水平角用全站仪观测两个测回。半测回角值差??40″,各测回角值较差,测回互测,??24″。
3、内业计算
将校核过的外业观测数据填入导线坐标计算表中,进行导线坐标的计算。
a, 角度闭合差容许值为?40″?n,
b, 导线相对闭合差应?1/4000,
c, 角度取至秒
d, 边长、坐标标增量及坐标均记至厘米。 测量数据见下表,
strict implementation of the principle of double handling. Through the Government housing, land division system inquiry real estate mortgage registration, can be handled by an account executive. CDs, bonds, bank acceptance bills and other valued document pledges, pledge of movable property as well as unable to query through the system of real estate mortgage,