摘要
焦作市广播电视塔主体为钢管结构， 在２ 年的监控过程中按三等变形测量的精度， 布设了垂直位移监测网， 结果表明： 工作基准点稳定； 地面变形观测点及塔基变形观测点靠近塔中心下沉量较大， 后者达厘米级， 但都符合沉降规律。塔体垂直度观测采用经纬仪配合钢板尺、经纬仪配合测距仪， 中心偏离值除Ｚ７ ， Ｚ１０ ， Ｚ１１ 段为１２０ ～３３２ ｍ ｍ 外， 其余均≤１０ ｍ ｍ ； 塔顶重直度观测采用投影对照法， 中心偏离值为８９ ｍ ｍ 。其偏差值均在允许限差范围。
Main body of Jiaozuo broadcast TV tower is of the steel-tube construction.For two years of monitoring, monitoring net of vertical shift on precision of three-class distorted survey has been arranged. results show that: working standard points are stabilized, distorted observation points of ground and tower foundation near the tower's center are subsiding to a greater extent to centimeter,but all agree to settling law. Verticality observation of tower's body is conducted by using theodolite fit nickelclad ruler and theodolite fit diastimeter. Center's deviation≤10 mm except 12 0～33 2 mm of Z 7,Z 10 ,Z 11 ,Verticality observation of tower's top is made by using projection comparison method.Center's deviation is 89 mm, all in allowable dimension variation.
出处
《桂林工学院学报》
1999年第4期349-353,共5页
Journal of Guilin University of Technology
关键词
变形观测
沉降
垂直度
钢架结构
电视塔
distortion observation
subside
verticality
steel framework
TV tower
Henan
Jiaozuo
