A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method using long spiral drilling and wall protection for construction of soil squeezing pile
The invention discloses a construction method using long spiral drilling and wall protection for construction of a soil squeezing pile. The method utilizes the characteristic that forward and reverse rotation soil returning directions of a spiral blade of a drilling machine are opposite, drilling is stopped after forward rotation drilling upwards returns part of residual soil to a preset depth, the drill is lifted in a reverse rotation mode, loose soil on a drill rod fills back into a hole for wall protection, and then a soil squeezing pile is constructed. The method has the advantages that the method is simple and practicable, the side friction resistance and the end resistance of the pile can be guaranteed, construction can be achieved by utilizing a common long spiral drilling machine, the method is simple and practicable, convenient to popularize, low in cost and wide in market prospect, and the blank of soil squeezing pile construction is filled up.
本发明公开了长螺旋钻孔护壁用于挤土桩施工方法，该方法利用了钻机螺旋叶片正反转返土方向相反的特点，正转钻进向上返出部分余土直到预定深度停钻，反转提钻将钻杆上的松土返填回孔内护壁，再施工挤土桩。该方法的优点是简单易行，既能保证桩的侧摩阻力又能保证端阻力，利用普通长螺旋钻机即可施工，该方法简单易行、便于推广、成本低廉、有广泛的市场前景，填补了挤土桩施工的空白。
Construction method using long spiral drilling and wall protection for construction of soil squeezing pile
The invention discloses a construction method using long spiral drilling and wall protection for construction of a soil squeezing pile. The method utilizes the characteristic that forward and reverse rotation soil returning directions of a spiral blade of a drilling machine are opposite, drilling is stopped after forward rotation drilling upwards returns part of residual soil to a preset depth, the drill is lifted in a reverse rotation mode, loose soil on a drill rod fills back into a hole for wall protection, and then a soil squeezing pile is constructed. The method has the advantages that the method is simple and practicable, the side friction resistance and the end resistance of the pile can be guaranteed, construction can be achieved by utilizing a common long spiral drilling machine, the method is simple and practicable, convenient to popularize, low in cost and wide in market prospect, and the blank of soil squeezing pile construction is filled up.
本发明公开了长螺旋钻孔护壁用于挤土桩施工方法，该方法利用了钻机螺旋叶片正反转返土方向相反的特点，正转钻进向上返出部分余土直到预定深度停钻，反转提钻将钻杆上的松土返填回孔内护壁，再施工挤土桩。该方法的优点是简单易行，既能保证桩的侧摩阻力又能保证端阻力，利用普通长螺旋钻机即可施工，该方法简单易行、便于推广、成本低廉、有广泛的市场前景，填补了挤土桩施工的空白。
Construction method using long spiral drilling and wall protection for construction of soil squeezing pile
长螺旋钻孔护壁用于挤土桩施工方法
WANG JILIANG (author) / JIA JUN (author) / TONG XIUFU (author) / WANG YU (author) / SUN QUAN (author) / JIANG XI (author) / CAO XINGMING (author) / CAO YU (author) / CUI WEITING (author)
2021-06-22
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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