Method for preventing landslides induced by inappropriate liquid injection intensity in in-situ leaching mining

• Main Authors: LOU RIXIN, WANG QUANGEN, LI QIAOBIN, ZHONG JIUAN
• Format: Patent
• Language: English
• Published: 09.12.2015
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; FERROUS OR NON-FERROUS ALLOYS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a method for preventing landslides induced by inappropriate liquid injection intensity in in-situ leaching mining. The method comprises the following steps: S1, drilling a liquid injection hole; S2, integrating an upper-layer mold bag (1), a lower-layer mold bag (2) and other parts into a whole; S3, injecting cement slurry from an inlet of a slurry injection pipe I, wherein the cement slurry enters the upper-layer mold bag (1), so that the slurry injection of the upper-layer mold bag (1) is realized; injecting cement slurry from an inlet of a slurry injection pipe II (6), wherein the cement slurry enters the lower-layer mold bag (2), so that the slurry injection of the lower-layer mold bag (2) is realized; S4, enabling a medicament to be inlet into a liquid injection pipe (4) from an inlet end of the liquid injection pipe (4), wherein the medicament enters a region formed by the upper-layer mold bag (1), the liquid injection hole (10) and the lower-layer mold bag (2), so that the injection of the medicament is realized. The method disclosed by the invention has the benefits that the medicament can be prevented from entering a non-ore body layer and a space between the non-ore body layer and an ore body layer, and due to the effect of an anchor rod, a slippage phenomenon generated between a clay layer and the ore body layer, as well as between the ore body layer and a bed rock is effectively avoided.