Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Drilling tool with variable stirring angle
The invention provides a drilling tool with a variable stirring angle. The drilling tool comprises a drilling tool pipe body, a plurality of groups of first stirring blades and cutting blades, wherein the drilling tool pipe body is provided with a male joint, a lower guniting opening, a second built-in pipeline and an air spraying opening; three male plate through holes of the male joint are formed and are in equilateral triangle symmetrical arrangement in the radial direction of a male fixing plate; the second built-in pipeline is arranged in an inner cavity of the drilling tool pipe body through a plurality of second pipeline frames; the plurality of groups of first stirring blades are symmetrically arranged on the outer wall of the drilling tool pipe body at intervals from top to bottom; each group of first blades are arranged on the outer wall of the drilling tool pipe body in a vertically crossed and certain-distance-interval way; and an included angle delta 1 between a first blade seat and the axial center line of the drilling tool pipe body is 45 degrees to 55 degrees. The drilling tool has the advantages that the stirring blade angle change is performed by adapting to different geological conditions; the guniting on the peripheral soil body is realized in different stages during the drilling down and the lifting of a drilling rod so as to promote the sufficient stirring of the peripheral soil body and cement slurry; the vertical homogeneity and the intensity consistency of a pile body are achieved; the construction period is effectively shortened; and the construction cost is reduced.
一种可变化搅拌角度的钻具，包括具有公接头、下喷浆口、第二内置管路和喷气口的钻具管体、多组第一搅拌叶和切削叶;公接头的公板通孔设有三个，它们在公固定板径向方向以等边三角形对称方式布置；第二内置管路通过多个第二管路架设置于钻具管体内腔；多组第一搅拌叶自上而下间隔对称设置在钻具管体外壁，每组第一叶片以上下交叉、间隔一定距离的方式设置在钻具管体的外壁上；第一叶片座与钻具管体轴向中心线的夹角δ1=45°~55°。本发明适应不同地质条件进行搅拌叶角度变换，保证钻杆下钻和上提时的不同阶段实现向周围土体进行喷浆以促进周围土体与水泥浆的充分搅拌，达到桩身上下均质和强度一致，有效缩短施工周期和节约施工成本。
Drilling tool with variable stirring angle
The invention provides a drilling tool with a variable stirring angle. The drilling tool comprises a drilling tool pipe body, a plurality of groups of first stirring blades and cutting blades, wherein the drilling tool pipe body is provided with a male joint, a lower guniting opening, a second built-in pipeline and an air spraying opening; three male plate through holes of the male joint are formed and are in equilateral triangle symmetrical arrangement in the radial direction of a male fixing plate; the second built-in pipeline is arranged in an inner cavity of the drilling tool pipe body through a plurality of second pipeline frames; the plurality of groups of first stirring blades are symmetrically arranged on the outer wall of the drilling tool pipe body at intervals from top to bottom; each group of first blades are arranged on the outer wall of the drilling tool pipe body in a vertically crossed and certain-distance-interval way; and an included angle delta 1 between a first blade seat and the axial center line of the drilling tool pipe body is 45 degrees to 55 degrees. The drilling tool has the advantages that the stirring blade angle change is performed by adapting to different geological conditions; the guniting on the peripheral soil body is realized in different stages during the drilling down and the lifting of a drilling rod so as to promote the sufficient stirring of the peripheral soil body and cement slurry; the vertical homogeneity and the intensity consistency of a pile body are achieved; the construction period is effectively shortened; and the construction cost is reduced.
一种可变化搅拌角度的钻具，包括具有公接头、下喷浆口、第二内置管路和喷气口的钻具管体、多组第一搅拌叶和切削叶;公接头的公板通孔设有三个，它们在公固定板径向方向以等边三角形对称方式布置；第二内置管路通过多个第二管路架设置于钻具管体内腔；多组第一搅拌叶自上而下间隔对称设置在钻具管体外壁，每组第一叶片以上下交叉、间隔一定距离的方式设置在钻具管体的外壁上；第一叶片座与钻具管体轴向中心线的夹角δ1=45°~55°。本发明适应不同地质条件进行搅拌叶角度变换，保证钻杆下钻和上提时的不同阶段实现向周围土体进行喷浆以促进周围土体与水泥浆的充分搅拌，达到桩身上下均质和强度一致，有效缩短施工周期和节约施工成本。
Drilling tool with variable stirring angle
一种可变化搅拌角度的钻具
GAO CHAO (Autor:in) / HUANG JIANXIONG (Autor:in) / DUAN GUOPING (Autor:in) / GONG XIUGANG (Autor:in)
18.05.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Stirring blade structure for large-diameter stirring pile construction drilling tool
| Europäisches Patentamt | 2022
Omnidirectional stirring drilling tool and construction method
| Europäisches Patentamt | 2024
Bidirectional stirring drilling tool with expanding function and construction method
| Europäisches Patentamt | 2023