| 摘要 |
PROBLEM TO BE SOLVED: To provide a proposal for simple and accurate renovating repair in view of a problem of aged degradation in the bearing power of a buried ground anchor member due to crustal vibration such as an earthquake. SOLUTION: An injection pipe for repair with a sealing plug fitted to the tip is integrally mounted adjoining a buried anchor, and when the bearing power of the anchor is degraded with age, the injection pipe for repair is used to discharge required grout for repair from an anchor tip part. The injection pipe for repair is a small-diameter pipe with a diameter of about 5-25 mm. COPYRIGHT: (C)2007,JPO&INPIT
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