| 摘要 |
PURPOSE: To eliminate the need for pile driving and the driving of a deep foundation body, and to shorten the term of work by fixing the foundation body made of a steel plate onto a rectangular recess formed by excavating an existing road with adhesives and clamping and fixing a strut made of the steel plate onto the top face of the foundation body. CONSTITUTION: A rectangular recess 5 is formed by excavating a existing road, a recessed groove section is formed along the inner periphery of the recess, the upper section of the floor face 51 of the recessed groove section is coated with adhesives to form an adhesive layer 53, and sleeper bases 1 are fixed onto the adhesive layer 53. The floor face 52 of the recess 5 is ground-levelled in the same horizontal surface as the top faces of the sleeper based 1, an adhesive layer 54 is formed onto the whole surface of the floor face 52, foundation body members 21, 21 are arranged onto the adhesive layer 54 and the sleeper bases 1, and connecting members are arranged onto the joint sections and the recessed grooves 23 of the members 21 and the projecting sections 26 of the undersides of the connecting members are disposed so as to be mutually fitted. The connecting members are clamped and fastened onto the members 21 by bolts T to form the foundation body 2, and the foundation body 2 is clamped and fixed onto the sleeper bases 1 by the bolts T. The prefabricated struts 3 made of a steel plate are clamped and fixed onto the foundation body 2 by flanges. |
