| Combined with the construction technology of BAITANWU soft rock tunnel, the soft rock tunnnel construction technology was created through field investigation, monitoring measurement and etc. The main target was to evaluate the security and ensure the security of tunnel construction through obtained various stress and strain, bit shift and strain of next step.The article has the following main achievements:â… Connected with the construction of BAITANWU tunnel, the article analyzed water penetration, crush belt, landslide and the deformation of support unit which are the common disease in tunnel and pointed out key technology to solve such problems.â…¡The article generalized the distinguishing feature of tunnel support having disease and evaluated the treating effects.â…¢Through carries on the monitor to the BAITANWU tunnel's stress and distortion ,has carried on the appraisal to tunnel's construction effect ,then has carried on the instruction to tunnel's construction, the revision construction parameter ,possible arrangement construction working procedure ,thus reduces greatly the risk in the tunnel construction ,assures tunnel's construction security.The research findings has been applied into practicable engineering and has created obvious economic and social benefits, and it offer reference to similar engineering as well.
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