| 摘要 |
PROBLEM TO BE SOLVED: To provide a belleville spring ground anchor with high reliability without being damaged even if a compressive force exceeding the elastic limit acts on a belleville spring. SOLUTION: In the belleville spring ground anchor 31 for preventing a landslide from compressing the ground surface layer 22 by tension of a tendon 32, it is characterized that the contraction of a belleville spring 34a is restricted with a predetermined length by bringing ring sections 34h, 34i and 34j fitted between the adjoining recess sections of a belleville spring 34a into contact with a pipe section 33b of an anchor section 33 fixing one end of the tendon 32 thereto and both recess sections 34e, 34f and 34g of the belleville spring 34a. COPYRIGHT: (C)2003,JPO
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