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A platform for research: civil engineering, architecture and urbanism
Construction method of cast-in-situ bored pile in inclined boundary stratum with soft upper part and hard lower part
The invention belongs to the technical field of civil engineering, and particularly relates to a construction method of a cast-in-situ bored pile in an inclined boundary stratum with a soft upper part and a hard lower part. The construction method comprises the following steps of S1, construction preparation; S2, positioning and sinking a steel casing; S3, drilling in place by a drilling machine; S4, backfilling rubbles and continuing drilling; S5, placing a multifunctional well-shaped bracket; S6, manufacturing and placing a reinforcement cage; S7, pouring underwater concrete; and S8, conducting pile foundation forming detection. The method has the beneficial effects that the problem that in the process of drilling in the inclined stratum with the soft upper part and the hard lower part, a drill bit slips, and drilling cannot be conducted is solved, meanwhile, the multifunctional well-shaped bracket is adopted as a bearing structure in the steel reinforcement cage placing process, and the construction efficiency of drilling and hole forming is effectively improved.
本发明属于土木工程技术领域，具体涉及一种上软下硬倾斜交界地层钻孔灌注桩的施工方法。本发明包括以下步骤：S1、施工准备；S2、钢护筒定位下沉；S3、钻机就位钻孔；S4、回填片石继续钻进；S5、多功能井型支架安放；S6、钢筋笼制作与安放；S7、灌注水下混凝土；S8、桩基成型检测。本发明的有益效果是：本发明解决了在上软下硬倾斜地层钻孔过程中，钻头出现打滑无法进行钻进的问题，同时采用多功能井型支架作为钢筋笼安放过程中的承重结构，有效提高了钻进成孔的施工效率。
Construction method of cast-in-situ bored pile in inclined boundary stratum with soft upper part and hard lower part
The invention belongs to the technical field of civil engineering, and particularly relates to a construction method of a cast-in-situ bored pile in an inclined boundary stratum with a soft upper part and a hard lower part. The construction method comprises the following steps of S1, construction preparation; S2, positioning and sinking a steel casing; S3, drilling in place by a drilling machine; S4, backfilling rubbles and continuing drilling; S5, placing a multifunctional well-shaped bracket; S6, manufacturing and placing a reinforcement cage; S7, pouring underwater concrete; and S8, conducting pile foundation forming detection. The method has the beneficial effects that the problem that in the process of drilling in the inclined stratum with the soft upper part and the hard lower part, a drill bit slips, and drilling cannot be conducted is solved, meanwhile, the multifunctional well-shaped bracket is adopted as a bearing structure in the steel reinforcement cage placing process, and the construction efficiency of drilling and hole forming is effectively improved.
本发明属于土木工程技术领域，具体涉及一种上软下硬倾斜交界地层钻孔灌注桩的施工方法。本发明包括以下步骤：S1、施工准备；S2、钢护筒定位下沉；S3、钻机就位钻孔；S4、回填片石继续钻进；S5、多功能井型支架安放；S6、钢筋笼制作与安放；S7、灌注水下混凝土；S8、桩基成型检测。本发明的有益效果是：本发明解决了在上软下硬倾斜地层钻孔过程中，钻头出现打滑无法进行钻进的问题，同时采用多功能井型支架作为钢筋笼安放过程中的承重结构，有效提高了钻进成孔的施工效率。
Construction method of cast-in-situ bored pile in inclined boundary stratum with soft upper part and hard lower part
一种上软下硬倾斜交界地层钻孔灌注桩的施工方法
LEI JINSONG (author) / WANG YAN (author) / LU JIANGUO (author) / XIA XIAOJUN (author) / YAO HUAYAN (author) / LIU GUANG (author) / LIU GUOHONG (author) / LI KESONG (author)
2021-11-02
Patent
Electronic Resource
Chinese
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