Full-section deep hole grouting reinforcement method

The invention relates to a full-section deep hole grouting reinforcement method, which belongs to the field of tunnel underground excavation reinforcement methods, and mainly comprises the following steps: S1, excavating an end wall of a tunnel underground hole opening; s2, a pipe shed supporting st...

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Bibliographische Detailangaben
Hauptverfasser:	KANG JIANGKUN, WANG JIAN, TAN WEISHENG, WU JUN, MA LANGBO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS LIME, MAGNESIA METALLURGY MINING REFRACTORIES SHAFTS SLAG TREATMENT OF NATURAL STONE TUNNELS
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Beschreibung
Zusammenfassung:	The invention relates to a full-section deep hole grouting reinforcement method, which belongs to the field of tunnel underground excavation reinforcement methods, and mainly comprises the following steps: S1, excavating an end wall of a tunnel underground hole opening; s2, a pipe shed supporting structure is arranged at the excavation contour line of the tunnel portal; and S3, a first section deep hole grouting area is arranged below the pipe shed supporting structure, a second section deep hole grouting area is arranged on the periphery of the pipe shed supporting structure, and deep hole grouting is conducted on the first section deep hole grouting area and the second section deep hole grouting area. Wherein the grouting mode is that one hole is formed and one hole is injected, and the hole forming and grouting processes in the same area are circularly carried out between the circumferential grouting holes of the adjacent circles. The full-section deep hole grouting reinforcement method has the advantages