Rotary jet mixing stiffening pile is a kind of anchorage structure that forms vertical or inclined variable diameter soil-cement pile body in soft soil layer through special drilling machine and high-pressure rotary jet mixing technology. Anchor bars and anchorage parts are placed in cement pile body and pre-tension is applied to control foundation pit stability.
Rotary jet stirring stiffened pile-By means of special drill and high-pressure rotary jet mixing technology, vertical or inclined variable diameter cement soil pile is formed in the soft soil layer, anchor bars and anchorage parts are placed in the cement pile body, and pre-tension is applied to control the anchor structure of foundation pit stability.
According to the practical experience in the design, construction and testing of the implemented project, the main characteristics and advantages of the stiffened cement soil anchor cable are summarized as follows:
(1) Anchor solid diameter is large (diameter up to300~500mm, while the hole diameter of the traditional anchor cable is generally150~200mm), high bearing capacity, small deformation of foundation pit;
(2) The hole formation and grouting are completed simultaneously, which can avoid the occurrence of hole collapse and shrinkage.
(3) In the construction of sandy soil rich in confined water, the stiffened soil-cement anchor cable can avoid water gushing and sand gushing in the anchor hole through the pressure soil-cement slurry in the anchor hole and the plugging measures at the orifice.
(4) The anchor plate can be set at the end of the stiffener to improve the bearing capacity.
Form a complete set of technology
(1) sand water gushing solution technology: disposable anchor head.
The STIFFENING PILE IS CONSTRUCTED IN SILT, GRAVEL stratum AND confined WATER flow sand layer to solve the problems of hole formation and sandblasting water inrush, and the hole sealing method of cover type complete sealing and controllable displacement is adopted.
(2)Stiffening pileThe recovery technology: disposable anchor head.
The red line problem has been solved.
(3)Stiffening pileThe pressure and detection technology: through the heart jack.
Revealing photos:
Project Case:
Heilan Wealth Center foundation pit
Nanhai Wanda Plaza
Wuxi North Square traffic complex
Shanghai Qiangqiang Foundation Engineering Co., LTD. 's business covers foundation pit engineering, pile foundation engineering, land and waterFoundation treatment, slope treatment and other engineering fields. around"Excellent technology, reliable process, fast construction" technical requirements, is to provide customers with land, water foundation engineering technical consultation, construction services and other comprehensive solutions of the entity enterprise.Contact Number:400-100-2850
