The Appliance Research Of Resistivity Method On Water Transfer Work Of Dahuofang Reservoir Tunnel

With the development of our country economy, the highway tunnel, railroad tunnel, water electricity construction, across river valley to water transfer work tunnel to construct fast than ever.so the time has to been reduced that the tunnel were explored and designed. It is too hard to provide enough time and supplies to explore all the rock in this region before the tunnel-engineering construct. However, it is very difficult that quick find out the whole engineer geology, hydrogeology and other bad geological role that use in our instrumentThe tunnel engineering is a concealed work, we don't know what we will meet,it always cause that geological disasters have happened,this can damage equipment and injure workers, gushing water is the familiar geology disaster in the tunnel engineering,it can be formed in karst cave,Weathered broken by tectonic, interface between aquifer and impermeable layer,a region of many fissures According to the statistics,about 80%tunnels construct happened gushing water geology disaster in the tunnels had already been set up in our country so it is important that recover the construct of the tunnel as soon as possible,that find out the regulation of recharge, runoff, excretion and related tectonic featuresHigh-density Resistivity Method is a new electric method technology used broadly. The high-density resistivity method is the important branch of electrical prospecting, its principle is explore the electrics difference between the target underground and medium around it for stable artificial DC electric field underground.it is a explore method that used DC electric and it study a lot of spacial electrics characteristic in order to make sure the geological problemsIn this detect process,we have known the resistance is n×103～n×104(O.m) in the integrity marble but the resistance is n×10～n×102(O.m), in fracture and karst cave by water filling.We can use the High-density Resistivity Method in the region because it have obviously electric difference.This paper combines an actual problem of the engeering that water transfer work of Liaoning Dahuofang reservoir tunnelling, for find out how and where the water flowed out.We used the new method that high-density resistivity and find the reason why water flowed out in this exploration. It provides an accurate science basis in order to project the design for block up the water that flowed out. Finally we obtain the satisfied geology result...