Thrust pile with prestress and self-supporting type pile construction using it

摘要

The present invention installs a fixture on the H-beam, installs a tension member in an inclined manner in the fixture, and introduces a pre-stress beam self-supporting method that supports earth pressure by applying a tension to the tension member. Thumb piles introduced with inclined prestress to reduce construction costs and improve workability by reducing the construction period and reducing the amount of steel used by increasing the efficiency of equipment work by securing There is a purpose. The thumb stake to which the inclined prestress is introduced for achieving the above object is an H-beam made of a flange and a web having a constant length; an anchorage coupled to the flange at a predetermined position by bolting or welding; It is characterized in that it is composed of a tension member that is installed obliquely between the anchorages. In addition, the thumb stake to which the inclined prestress is introduced for achieving the above object is an H-beam made of a flange and a web having a constant length; an anchorage coupled to the uppermost end of one flange of the H-beam and the lower end of the other flange of the H-beam to face each other by bolting or welding; It is characterized in that it is composed of a tension member that is installed obliquely between the anchorages. And, in accordance with the present invention for achieving the above object, the self-supporting temporary retaining construction method using the thumb pile to which the inclined prestress is introduced comprises the steps of manufacturing the thumb pile to which the inclined prestress is introduced (S 1); Forming a perforation hole by drilling at a predetermined interval in the ground and having a predetermined diameter and depth (S2); The step of driving a thumb peg into which the inclined pre-stress is introduced into the drilling hole (S 3); The step of filling sand into the thumb stakes into which the driven inclined prestress is introduced (S 4); Tensing the tension member installed on the thumb pile to which the inclined pre-stress is introduced (S 5); It is characterized in that the excavation proceeds to the front part of the thumb pile to which the inclined prestress is introduced and the step (S6) of installing the earth plate at the same time.