![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[单选题]
圆曲线测设已知交点的桩号为K4+150.940,算得切线长35.265,曲线长69.813,外矢距3.085,则中点桩号为()
A.K4+154.025
B.K4+186.205
C.K4+150.582
D.K4+220
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
C、K4+150.582
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.K4+154.025
B.K4+186.205
C.K4+150.582
D.K4+220
C、K4+150.582
A.基桩内力测试适用于桩身断面尺寸基本恒定或已知的桩
B.传感器测试断面应设置在两种不同性质土层的界面处。
C.采用滑动测微计是,可在桩身通畅内埋设1根测管,测管内宜每隔2m设测标或测量断面一个。
D.传感器埋设时,每断面处埋设1个传感器即可
E.内力测试时,可不设置标定断面