Pile-forming method for high-pressure rotary jet grouting pile in peaty soft soil layer

• Main Authors: MEI YISHENG, SUN RUIHUA, MAO CHUANYI, ZHANG YUNLONG, BAO QIGANG
• Format: Patent
• Language: Chinese; English
• Published: 23.07.2008
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; SOIL SHIFTING; TREATMENT OF NATURAL STONE; UNDERGROUND OR UNDERWATER STRUCTURES

The invention discloses a pile-forming method about a high-pressure rotary jet grouting pile forming in the peat soft soil layer, which is characterized in that clay mud is injected into the peat soft soil layer by high-pressure rotary jet grouting to change the property of soil, after stabilizing, cement slurry is injected into the peat soft soil layer to form an induration of cement slurry and soil. The pile-forming method overcomes the problem that the cement slurry which is directly injected into the peat soft soil layer can not form the effective induration, i.e. pile-forming is impossible or the pile-forming effect is not good, the problem of forming the high-pressure rotary jet grouting pile in the peat soft soil layer is solved, the application range of the high-pressure rotary jet grouting pile is developed. The pile-forming method about a high-pressure rotary jet grouting pile forming in the peat soft soil layer has the advantages of conveniently acquiring the raw material, easy manufacture of clay