Study On The Ermi Landslide Treatment In The Heda Expressway

Landslide is one kind of universal geological effects.Traffic is usually broken, riverchannel is usually blocked, factories, mines, villages and farmland are usually broken, all ofwhich are caused by the landslides which are taken more and more attention in the world. Solandslide-block project and interaction of the slippery body become one of the hot issues thatrelevant scientific and technical personnel study in the field of engineering day by day. Howto design a optimum landslide teratment plan economically and safely has practical value tonational economy construction and development.This thesis introduces the geological survey of the landslide and estimates the majorfactors of the landslide on the basis of Ermi slide treatment in Heda expressway. Threeschemes—anchor cable scheme, anti-slide pile scheme, anti-slide pile with anchor cablescheme—are calculated and compared, through which the most reasonable scheme can beselected. The concrete contents are as followed:1.Geological survey of the landslideThe physical geography and geology of the landslope is introduced. The distribution ofthe landslope, landslope characters, slide zone characteristics, deformation failurecharacteristcs, ect were found out. Physical-mechanical properties and parameters of everystratum are ascertained, which could be used as the starting point for estimating the landslidestability.2.Design and comparison of landslope preventing projectMechanical calculation of anchor cable scheme, anti-slide pile scheme, anti-slide pilewith anchor cable scheme, is executed separately. The amount of reinforcment in anti-slidepile and the nunber of anchor cable are ascertained. The schemes above are compared ineconomic and technology so the best scheme could be selected. Besides, the calculate ofdrainage design is executed.3.Engineering design plan and construction requirementsThis thesis introduces the solution of protective works and drainage works, and providethe construction craft requirement and the monitor requiement during the construction.The following conclusions were reached through the above research. 1.Landslide reason is: the project is located in an old landslide, due to the excavation ofroadbed, the slope on the left side of the traction sliding.2.From aspects such as technology, economy, the contrast analysis, the anchor cableanti-slide pile scheme is the lowest cost, but the process is complex, the construction time islong, the quality is relatively difficult to control. Anti-slide pile scheme which cost slightlyhigher is easy to construct and effects ideal.It is recommended to be the last solution.3.After the implementation of the anti-slide pile to get effective governance, thelandslide turned in a stable state.