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Construction method of triple pipe high-pressure jet grouting pile suitable for water-enriching sand layer
The invention discloses a construction method of a triple pipe high-pressure jet grouting pile suitable for a water-enriching sand layer. The construction method comprises the following steps: 1, measuring, positioning and excavating a slurry draining ditch; 2, carrying out pile testing; 3, preparing wall protecting slurry for a construction grouting hole; 4, drilling the construction grouting hole and reinforcing the hole wall; 5, preparing and jetting reinforcing cement slurry; 6, cleaning a rotary jet grouting pipe and 7, carrying out translocation. The construction method of the triple pipe high-pressure jet grouting pile suitable for the water-enriching sand layer is optimized, so that the phenomenon that when rotary jet grouting pile construction is carried out on the water-enrichingsand layer, the water content of the water-enriching sand layer is larger to cause hole collapse is avoided, and the construction efficiency of the water-enriching sand layer is improved; and wall protection and grouting division are carried out on the grouting holes in the water-enriching sand layer, wall protecting slurry with different mass ratios is adopted at different depths for reinforcement, so that the grouting hole reinforcing operation is refined, and the stability of the grouting holes is improved.
本发明公开了一种适用于富水砂层的三重管高压旋喷桩施工方法，该方法包括：一、测量定位并挖设排浆沟；二、进行试桩试验；三、制备施工注浆孔护壁浆液；四、钻设施工注浆孔并加固孔壁；五、制备并喷射加固水泥浆；六、清洗旋喷管；七、移位。本发明对在富水砂层进行三重管高压旋喷桩施工工法进行了优化，避免了在富水砂层进行旋喷桩施工时，由于富水砂层含水量较大造成的塌孔现象，提高了在富水砂层中进行施工的施工效率；通过对富水砂层中的注浆孔进行护壁注浆划分，不同深度采取质量比不同的护壁浆液进行加固，细化了注浆孔的加固工作，提高了注浆孔的稳定性。
Construction method of triple pipe high-pressure jet grouting pile suitable for water-enriching sand layer
The invention discloses a construction method of a triple pipe high-pressure jet grouting pile suitable for a water-enriching sand layer. The construction method comprises the following steps: 1, measuring, positioning and excavating a slurry draining ditch; 2, carrying out pile testing; 3, preparing wall protecting slurry for a construction grouting hole; 4, drilling the construction grouting hole and reinforcing the hole wall; 5, preparing and jetting reinforcing cement slurry; 6, cleaning a rotary jet grouting pipe and 7, carrying out translocation. The construction method of the triple pipe high-pressure jet grouting pile suitable for the water-enriching sand layer is optimized, so that the phenomenon that when rotary jet grouting pile construction is carried out on the water-enrichingsand layer, the water content of the water-enriching sand layer is larger to cause hole collapse is avoided, and the construction efficiency of the water-enriching sand layer is improved; and wall protection and grouting division are carried out on the grouting holes in the water-enriching sand layer, wall protecting slurry with different mass ratios is adopted at different depths for reinforcement, so that the grouting hole reinforcing operation is refined, and the stability of the grouting holes is improved.
本发明公开了一种适用于富水砂层的三重管高压旋喷桩施工方法，该方法包括：一、测量定位并挖设排浆沟；二、进行试桩试验；三、制备施工注浆孔护壁浆液；四、钻设施工注浆孔并加固孔壁；五、制备并喷射加固水泥浆；六、清洗旋喷管；七、移位。本发明对在富水砂层进行三重管高压旋喷桩施工工法进行了优化，避免了在富水砂层进行旋喷桩施工时，由于富水砂层含水量较大造成的塌孔现象，提高了在富水砂层中进行施工的施工效率；通过对富水砂层中的注浆孔进行护壁注浆划分，不同深度采取质量比不同的护壁浆液进行加固，细化了注浆孔的加固工作，提高了注浆孔的稳定性。
Construction method of triple pipe high-pressure jet grouting pile suitable for water-enriching sand layer
适用于富水砂层的三重管高压旋喷桩施工方法
WAN CHANGSHENG (author) / ZHANG YUNFEI (author) / WEI HUI (author) / JIA WURONG (author) / LIANG JIANXIN (author) / NING ZHENGUO (author) / LI CHAOCHENG (author) / ZHAO XIAOJUAN (author) / ZHANG SHUAIBIN (author) / YANG GUANGXIANG (author)
2020-09-01
Patent
Electronic Resource
Chinese
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