Method of grouting a pile in a hole involving the optimized frequency of vibration of the grouting material |
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| 申请号 | US45575474 | 申请日 | 1974-03-28 | 公开(公告)号 | US3898848A | 公开(公告)日 | 1975-08-12 |
| 申请人 | WYANT REECE E; | 发明人 | WYANT REECE E; | ||||
| 摘要 | A pile is placed in an earth borehole which may or may not have a protective casing along at least a portion of its length. A predetermined amount of water is metered into the bottom of the hole in the annulus exterior to the pile and then dry sand is added to the water in the annulus. Alternatively, cement or other grouting materials are added to the hole around the pile. Various means are provided for vibrating either the pile or the external protective casing or the sand and water mixture itself or the other grouting material. To maximize the amplitude of vibration, the frequency of vibration is varied during the grouting process to match the ungrouted length of the pile, either by continuously varying the frequency of vibration or in steps along the length of the pile. The sand and water or other grouting mixture itself can be vibrated by one or more vibrating rods inserted into the mixture or by a multi-fingered sleeve which fits over the pile and into the annulus external to the pile. In some of the embodiments, the vibrated apparatus is removed while vibrating to successively compact the sand and water or other grouting mixture beginning at the bottom of the hole. When using a pipe pile, the bottom of the pipe pile can be plugged during the compaction of the sand and water or other grouting mixture and then removed if necessary. Dry sand is used as a ballast to prevent the pipe pile from floating when using a closed end. | ||||||
| 权利要求 | 1. A method of grouting a pile in a hole, comprising: placing a pile of a given external diameter in a hole having a diameter larger than said external diameter; adding a wet grouting material to said hole within the annulus external to said pile; vibrating said grouting material; and varying the frequency of said vibration to reinforce the amplitude of said vibration. 2. A method of grouting a pile in a hole, comprising: placing a pile of a given external diameter in a hole having a diameter larger than said external diameter; adding a wet grouting material to said hole within the annulus external to said pile; vibrating said grouting material as said material is added; and varying the frequency of said vibration to reinforce the amplitude of said vibration. 3. A method of grouting a pile in a hole, comprising: placing a pile of a given external diameter in a hole having a diameter larger than said external diameter; adding a wet grouting material to said hole within the annulus external to said pile; vibrating said grouting material at a frequency optimized to reinforce the amplitude of said vibration; and ceasing to vibrate said grouting material while said material is still fluidized. 4. A method of grouting a pile in a hole, comprising: placing a pile of a given external diameter in a hole having a diameter larger than said external diameter; adding a wet grouting material to said hole within the annulus external to said pile; vibrating said pile while said grouting material is being added to said hole at a frequency optimized to reinforce the amplitude of said vibration; and ceasing to vibrate said pile short of adding grouting material in such an amount that said grouting material would no longer be fluidized. 5. A method of grouting a pile in a hole, comprising: placing a pile of a given external diameter in a hole having a diameter larger than said external diameter; adding a wet grouting material to said hole within the annulus external to said pile; vibrating at least one rod in said grouting material at a frequency optimized to reinforce the amplitude of said vibration; and withdrawing said at least one rod from said grouting material during said vibration. 6. A method of grouting a pile in a hole, comprising: placing a pile of a given external diameter in a hole having a diameter larger than said external diameter; adding a wet grouting material to said hole within the annulus external to said pile; vibrating a multi-fingered sleeve in said grouting material at a frequency optimized to reinforce the amplitude of said vibration, said sleeve fingers being located in the annulus of said hole external to said pile; and withdrawing said sleeve from said hole while continuing the vibration. 7. A method of grouting a pile in a hole, comprising: placing a pile of a given external diameter in a hole having a diameter larger than said external diameter and having a protective casing; adding a wet grouting material to said hole within the annulus external to said pile; vibrating said protective casing at a frequency optimized to reinforce the amplitude of said vibration; and withdrawing said casing during said vibration. 8. A method of grouting a pipe pile having a closed bottom end in a hole, comprising: placing a closed bottom pipe pile of a given external diameter in a hole having a diameter larger than said external diameter; adding a ballast material to the interior of said pipe pile; adding a wet grouting material to said hole exterior to said pipe pile; vibrating said grouting material at a frequency optimized to reinforce the amplitude of said vibration; and removing said ballast material from the interior of said pipe pile. 9. ThE method according to claim 8, including the additional step of removing said bottom end of said pipe pile. 10. A method of grouting a pile in a hole, comprising: placing a pile of a given external diameter in said hole having a diameter larger than said external diameter; adding a wet grouting material to said hole within the annulus external to said pile; and successively inducing vibration of said grouting material along the length of said pile at a frequency optimized to reinforce the amplitude of said vibration. |
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