Self-expansion type compaction pile construction method

• Main Authors: XIN WENDONG, JING WENCHANG, LIU CHUNGANG, XUE ZENGLI, YAO HONGLE, SHEN HUA, ZHANG ZONGTANG
• Format: Patent
• Language: Chinese; English
• Published: 05.11.2019
• 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 relates to a self-expansion type compaction pile construction method. Quicklime is mixed with gravels or rubbles, cement and coal ash are added, layering tampering and filling are conducted, and a self-expansion type compaction pile is constructed. The material character that quicklime and the like are expanded in volume after encountering water but shrinkage is avoided is utilized,the quicklime is mixed with the good-self-sealing-performance gravel or rubble materials, and the cement, the coal ash and other gel materials are properly added; and based on an existing compaction pile or column punching expansion pile (a prebored hole compaction pile is included) construction technology, after layering tampering and filling are finished for a pile body, after pile body materials absorb water in the soil body, the materials are expanded, foundation soil is further compacted, the foundation treatment effect can be improved, or the quality defects in the existing constructiontechnology are overcome. 本