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A platform for research: civil engineering, architecture and urbanism
Anti-collapse rotary excavating pile construction device and construction method thereof
The invention relates to the technical field of cast-in-place pile construction, in particular to an anti-collapse rotary excavating pile construction device and a construction method thereof.The construction device comprises a rotating rod, a wall scraping device and a protection wall forming device are arranged on the rotating rod, and the protection wall forming device is arranged above the wall scraping device; a transverse scraper set is arranged on the side face of a first support of the wall scraping device, a vertical pipeline communicated with a first flow channel arranged in the rotating rod is arranged on the side face of a second support of the protection wall forming device, the vertical pipeline faces downwards, the lower end of the vertical pipeline is of a sealing structure, and a plurality of open holes formed in the length direction of the vertical pipeline at intervals are formed in the outer side of the vertical pipeline. According to the construction method, the groove lines are firstly hung on the inner side face of the hole wall of the pile hole through the transverse scraper set of the wall scraping device, then the second slurry wall protection layer covering the threaded groove is generated on the hole wall through the wall protection forming device, the bonding strength of the second slurry wall protection layer and the hole wall is enhanced through the groove lines, and therefore the supporting and anti-collapse effects of the hole wall protection layer are enhanced.
本申请涉及灌注桩施工的技术领域，尤其是涉及一种防塌陷旋挖桩施工装置及其施工方法，其中施工装置包括转杆，所述转杆上设有刮壁装置和护壁成型装置，护壁成型装置设于刮壁装置上方；刮壁装置的第一支架侧面设有横向刮刀组，护壁成型装置的第二支架侧面设有与转杆内设有的第一流道连通的竖向管路，竖向管路朝向向下，竖向管路下端为封口结构，竖向管路外侧设有若干沿竖向管路长度方向间隔设置的开孔。本申请通过刮壁装置的横向刮刀组先在桩孔孔壁内侧面挂出槽纹，然后利用护壁成型装置在孔壁上生成覆盖螺纹槽的第二泥浆护壁层，通过槽纹加强第二泥浆护壁层与孔壁的结合强度，以增强孔壁保护层的支撑防塌作用。
Anti-collapse rotary excavating pile construction device and construction method thereof
The invention relates to the technical field of cast-in-place pile construction, in particular to an anti-collapse rotary excavating pile construction device and a construction method thereof.The construction device comprises a rotating rod, a wall scraping device and a protection wall forming device are arranged on the rotating rod, and the protection wall forming device is arranged above the wall scraping device; a transverse scraper set is arranged on the side face of a first support of the wall scraping device, a vertical pipeline communicated with a first flow channel arranged in the rotating rod is arranged on the side face of a second support of the protection wall forming device, the vertical pipeline faces downwards, the lower end of the vertical pipeline is of a sealing structure, and a plurality of open holes formed in the length direction of the vertical pipeline at intervals are formed in the outer side of the vertical pipeline. According to the construction method, the groove lines are firstly hung on the inner side face of the hole wall of the pile hole through the transverse scraper set of the wall scraping device, then the second slurry wall protection layer covering the threaded groove is generated on the hole wall through the wall protection forming device, the bonding strength of the second slurry wall protection layer and the hole wall is enhanced through the groove lines, and therefore the supporting and anti-collapse effects of the hole wall protection layer are enhanced.
本申请涉及灌注桩施工的技术领域，尤其是涉及一种防塌陷旋挖桩施工装置及其施工方法，其中施工装置包括转杆，所述转杆上设有刮壁装置和护壁成型装置，护壁成型装置设于刮壁装置上方；刮壁装置的第一支架侧面设有横向刮刀组，护壁成型装置的第二支架侧面设有与转杆内设有的第一流道连通的竖向管路，竖向管路朝向向下，竖向管路下端为封口结构，竖向管路外侧设有若干沿竖向管路长度方向间隔设置的开孔。本申请通过刮壁装置的横向刮刀组先在桩孔孔壁内侧面挂出槽纹，然后利用护壁成型装置在孔壁上生成覆盖螺纹槽的第二泥浆护壁层，通过槽纹加强第二泥浆护壁层与孔壁的结合强度，以增强孔壁保护层的支撑防塌作用。
Anti-collapse rotary excavating pile construction device and construction method thereof
一种防塌陷旋挖桩施工装置及其施工方法
DU JIANGTAO (author)
2023-11-21
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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