INSTALLATION METHODS OF MICRO-PILES WITH SOIL FAILURE SHAPE AND CONDITION

The present invention relates to a method for installing micro-piles in which ground destruction shapes and ground conditions are considered and, more specifically, to a method for installing micro-piles in which ground destruction shapes and ground conditions are considered which constructs (θ< 0°) the micro-piles to be crossed for efficiently suppressing compression displacement of ground in case of silt ground in which the ground is destroyed in a penetration shear failure shape or constructs (θ> 0° or θ< 0°) the micro-piles to be inclined for efficiently suppressing transverse displacement of the ground and receiving less impact on the adjacent ground in case of sand ground in which the ground is destroyed in front or local shear failure shape as a result of a model test differing ground conditions. [Reference numerals] (5T) Rubber chain;(AA) Fixing screw of a weight loading device;(BB) Weight loading device and a load cell;(CC) Control lever of an injection device;(DD) Injection device;(EE) Model tester controller;(FF) Sand ground;(GG) Auxiliary wheel