The monitoring project of Zhouning Hydropower station underground plant and water intake system including monitoring of the surroundingrock deformation, bolt stress, osmotic pressure and joint.
周宁水电站地下厂房及引水系统的监测项目包括围岩变形监测、锚杆应力计监测、渗透压力监测、测缝计监测。
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When the hydraulic pressure tunnel is pressed by water, the concrete of tunnel transfers the pressure to the surroundingrock mass, and it also is pressed by the rock reaction force at the same time.
The results show that, for relatively shallow embedded tunnel, a big error would occur if the surroundingrockpressureof the vault is regarded as uniformly distributed.