Method for preventing earthquake liquefaction instability of ultrafine tailing heaping upstream method tailing dam

Abstract

The invention discloses a method for preventing earthquake liquefaction instability of an ultrafine tailing heaping upstream method tailing dam. An initial dam (5) and a dam abutment flood stop ditch (1) are built according to a design scheme; embedment depths of a first earthquake liquefaction resisting medium-coarse sand drainage/seepage layer and a second earthquake liquefaction resisting medium-coarse sand drainage/seepage layer are determined according to the region seismic fortification intensity; the first and second earthquake liquefaction resisting medium-coarse sand drainage/seepage layers both consist of medium-coarse sand drainage/seepage layers (11), and a row of groove hole drainage/seepage pipes (3) paved in the medium-coarse sand drainage/seepage layers (11); the groove hole drainage/seepage pipes (3) are communicated with drainage communicating pipes (2) through three-way pipes (12); and the outer ends of the drainage communicating pipes (2) are connected with the dam abutment flood stop ditch (1). The method improves the earthquake liquefaction resistance and the stability of the ultrafine tailing heaping dam, prevents the earthquake liquefaction instability damage, and in particular, is suitable for the ultrafine tailing heaping upstream method tailing dam in high-intensity earthquake region.

Description

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AI Technical Summary

Benefits of technology

This patented technology helps reduce damage caused during tectonic movements on offshore platforms due to sea levels rising or falling over time. It also allows for more efficient use of space within an underground facility while maintaining stable structures with high load carrying capacities. Additionally, it provides better protection against seawater intrusion from leaks through impervious walls without compromising its effectiveness. Overall, this innovative solution enhances safety measures such as temporary flood control systems, reinforce soil stabilization mechanisms, improve containment capabilities, minimizing costs associated with excavations, reducing disposal times, enhancing productivity, etc., ultimately leading to longer lifetimes for these materials used at different locations throughout the world.

Problems solved by technology

The technical problem addressed in this patents relates to improving the quality and safety of tailoring lands used during metal mill operations without causing damage from overweight explosion hazards such as hydrocrackers and blast furnace failures. Existing methods involve adding expensive materials like cement bags containing heavy metallurgery waste products, leading to increased risks associated with leaks and sedimentation issues. Therefore, new ways must be developed to prevent these drawbacks while maintaining good liquid handling capabilities.

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