Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for reinforcing PHC pipe pile core in mucky soil layer area
The invention discloses a construction method for reinforcing a PHC pipe pile core in a mucky soil layer area. The construction method comprises the following steps that according to a pile body quality report of low strain detection of the PHC pipe pile after excavation of a mucky soil body foundation, and sludge filled in an inner cavity of the PHC pipe pile which is judged to be in class II and class III quality grades by using a high-pressure jet grouting drilling machine is stirred and diluted; and then high-pressure compressed air of a high-pressure jet grouting drilling machine is used for gradually extruding slurry water formed through stirring and dilution out of an inner cavity of the PHC pipe pile; then reinforcing steel bars are continuously arranged in the weld joint cracking position area of a PHC pipe pile connector, then concrete is used for filling a pile core reinforcing space, and therefore pile core reinforcing work at the weld joint cracking position of the PHC pipe pile connector is completed. According to the construction method for reinforcing the PHC pipe pile core in the mucky soil layer area, the project construction period can be ensured, and the project construction cost increased by follow-up pile refilling can be reduced.
本发明公开了一种淤泥质土层区域的PHC管桩桩芯补强的施工方法，是根据淤泥质土体基础开挖后的PHC管桩低应变检测的桩身质量报告，将判定为Ⅱ类、Ⅲ类质量等级的PHC管桩内腔里充填的淤泥，用高压旋喷钻机搅拌和稀释处理后，再用高压旋喷钻机的高压压缩空气，将搅拌和稀释形成的浆水，逐步挤出PHC管桩的内腔，然后再继续在PHC管桩接头焊缝裂开位置区域，设置补强钢筋后用混凝土进行桩芯补强空间的充填，从而完成PHC管桩接头焊缝裂开位置处桩芯补强工作。应用本发明所述的施工方法既可以确保工程施工工期，以能够减少了后续重新补桩而增加的工程建设费用。
Construction method for reinforcing PHC pipe pile core in mucky soil layer area
The invention discloses a construction method for reinforcing a PHC pipe pile core in a mucky soil layer area. The construction method comprises the following steps that according to a pile body quality report of low strain detection of the PHC pipe pile after excavation of a mucky soil body foundation, and sludge filled in an inner cavity of the PHC pipe pile which is judged to be in class II and class III quality grades by using a high-pressure jet grouting drilling machine is stirred and diluted; and then high-pressure compressed air of a high-pressure jet grouting drilling machine is used for gradually extruding slurry water formed through stirring and dilution out of an inner cavity of the PHC pipe pile; then reinforcing steel bars are continuously arranged in the weld joint cracking position area of a PHC pipe pile connector, then concrete is used for filling a pile core reinforcing space, and therefore pile core reinforcing work at the weld joint cracking position of the PHC pipe pile connector is completed. According to the construction method for reinforcing the PHC pipe pile core in the mucky soil layer area, the project construction period can be ensured, and the project construction cost increased by follow-up pile refilling can be reduced.
本发明公开了一种淤泥质土层区域的PHC管桩桩芯补强的施工方法，是根据淤泥质土体基础开挖后的PHC管桩低应变检测的桩身质量报告，将判定为Ⅱ类、Ⅲ类质量等级的PHC管桩内腔里充填的淤泥，用高压旋喷钻机搅拌和稀释处理后，再用高压旋喷钻机的高压压缩空气，将搅拌和稀释形成的浆水，逐步挤出PHC管桩的内腔，然后再继续在PHC管桩接头焊缝裂开位置区域，设置补强钢筋后用混凝土进行桩芯补强空间的充填，从而完成PHC管桩接头焊缝裂开位置处桩芯补强工作。应用本发明所述的施工方法既可以确保工程施工工期，以能够减少了后续重新补桩而增加的工程建设费用。
Construction method for reinforcing PHC pipe pile core in mucky soil layer area
一种淤泥质土层区域的PHC管桩桩芯补强的施工方法
ZHU DAOFU (Autor:in) / ZHANG HONGYU (Autor:in) / CUI SHIJIE (Autor:in) / PAN JINGXI (Autor:in) / TUO BUSHENG (Autor:in)
01.06.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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