Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hole-forming construction method for rotary excavating pile
The rotary excavating pile hole-forming construction method comprises the following steps that S1, rotary excavating preparation is conducted, specifically, lofting and positioning are conducted, and a drilling machine is in place; s2, rotary excavating construction is conducted, specifically, a rotary excavating machine head of a drilling machine is driven by a drill rod to be slowly screwed into a depth position of the height of a cylinder body in a soil layer, the drilling machine stops rotating, and slurry with a certain pressure is injected into the side wall of the pile hole through a grouting channel in the rotary excavating machine head; s3, soil unloading construction is conducted, specifically, the drilling machine lifts the rotary drilling machine head to one side of the pile hole, and soil unloading is completed through a soil unloading mechanism; s4, returning to the step S2 until the rotary excavation reaches the set depth; according to the hole-forming construction method, wall protection of the upper side wall of the whole pile body height can be completed, the stability of the pile wall is guaranteed, cracks are reduced, falling is avoided, the hole-forming quality is improved, meanwhile, a pile casing and the like are not needed, the structural stability of the pile hole wall can be effectively guaranteed without adopting a traditional slurry wall protection construction technology, the construction efficiency is effectively improved, and the construction cost is reduced. The method is particularly suitable for rotary excavating pile hole construction of soft soil.
本发明公开了一种旋挖桩成孔施工方法，包括如下步骤：S1：旋挖准备，包括放样定位，钻机就位；S2：旋挖施工，钻机的旋挖机头在钻杆的带动下缓慢旋入土层中一个筒身高度的深度位置，钻机暂停转动，通过旋挖机头内的注浆通道完成对桩孔侧壁的注射一定压力的泥浆；S3：卸土施工，钻机提升旋挖机头至桩孔的一侧，通过卸土机构完成卸土；S4：返回步骤S2，直至旋挖至设定深度；此成孔施工方法可以完成整个桩身高度上侧壁的护壁，保证了桩壁的稳定性，减少裂缝，避免脱落，提升了成孔质量，同时不用设置护筒等，不用采用传统的泥浆护壁施工工艺即可有效保证桩孔壁的结构稳定，有效提高了施工效率，特别适用于松软土质的旋挖桩桩孔施工。
Hole-forming construction method for rotary excavating pile
The rotary excavating pile hole-forming construction method comprises the following steps that S1, rotary excavating preparation is conducted, specifically, lofting and positioning are conducted, and a drilling machine is in place; s2, rotary excavating construction is conducted, specifically, a rotary excavating machine head of a drilling machine is driven by a drill rod to be slowly screwed into a depth position of the height of a cylinder body in a soil layer, the drilling machine stops rotating, and slurry with a certain pressure is injected into the side wall of the pile hole through a grouting channel in the rotary excavating machine head; s3, soil unloading construction is conducted, specifically, the drilling machine lifts the rotary drilling machine head to one side of the pile hole, and soil unloading is completed through a soil unloading mechanism; s4, returning to the step S2 until the rotary excavation reaches the set depth; according to the hole-forming construction method, wall protection of the upper side wall of the whole pile body height can be completed, the stability of the pile wall is guaranteed, cracks are reduced, falling is avoided, the hole-forming quality is improved, meanwhile, a pile casing and the like are not needed, the structural stability of the pile hole wall can be effectively guaranteed without adopting a traditional slurry wall protection construction technology, the construction efficiency is effectively improved, and the construction cost is reduced. The method is particularly suitable for rotary excavating pile hole construction of soft soil.
本发明公开了一种旋挖桩成孔施工方法，包括如下步骤：S1：旋挖准备，包括放样定位，钻机就位；S2：旋挖施工，钻机的旋挖机头在钻杆的带动下缓慢旋入土层中一个筒身高度的深度位置，钻机暂停转动，通过旋挖机头内的注浆通道完成对桩孔侧壁的注射一定压力的泥浆；S3：卸土施工，钻机提升旋挖机头至桩孔的一侧，通过卸土机构完成卸土；S4：返回步骤S2，直至旋挖至设定深度；此成孔施工方法可以完成整个桩身高度上侧壁的护壁，保证了桩壁的稳定性，减少裂缝，避免脱落，提升了成孔质量，同时不用设置护筒等，不用采用传统的泥浆护壁施工工艺即可有效保证桩孔壁的结构稳定，有效提高了施工效率，特别适用于松软土质的旋挖桩桩孔施工。
Hole-forming construction method for rotary excavating pile
旋挖桩成孔施工方法
WEI QIKE (Autor:in) / WANG ZHENQIANG (Autor:in) / TANI SATOSHI (Autor:in) / CHEN XIAOLEI (Autor:in) / WANG YONGCHAO (Autor:in) / WANG WEISHUO (Autor:in) / RAO XIN (Autor:in) / DENG YUAN (Autor:in) / FU JIANGHONG (Autor:in) / LIAO XIAOHUI (Autor:in)
22.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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