Institute of Mining of Far Eastern Branch of Russian Academy of Sciences:

Khrunina N. P., Researcher, Candidate of Engineering Sciences, е-mail: npetx@mail.ru

Korneeva S. I., Academic secretary, Candidate of Engineering Sciences, е-mail: s_korneeva@mail.ru

The findings of studies on high-clay placer sands in the Kolchan floodplain are presented. A new technology and a geotechnological complex of intense disintegration are recommended as an effective means of improving the development of high-clay natural and industrial gold placers with fine gold.

1. Grigoriev A. L. Formation of shock waves by pulsed electrical discharges in water and studies on their impact on barriers: master’s thesis. — M., 2007. — 129 p.
2. Gimadeev M. M. Improved methods of calculating the energy parameters of the shock wave at highvoltage electric discharge in water based on the thermalphysical approach: master’s thesis. — Naberezhnye Chelny, 2009. — 130 p.
3. Mamaev Yu. A., Khrunina N. P. Determination of optimal parameters of ultrasonic radiation directed at marginal zones of gold placer sands. Journal of Mining. 2008. No. 6. P. 7174.
4. Khrunina N. P. Mathematical modeling of new surface formation as a result of exposure of sandyand-clay rock to ultrasound waves in water. GIAB. 2008. No. 2. pp. 151–155.
5. Patent 2433867 RF, IPC6 В03В 5/00, Е21С 41/30. The method of acoustic hydropulse softening and disintegration of highly plastic argillaceous placer sands. N. P. Khrunina, I. Yu. Rasskazov, Y. A. Mamaev.
6. Agranat B. A., Bashkirov V. I. Kitaigorodsky Y. I., Havsky N. N. Ultrasonic technology. — Moscow: Metallurgy, 1974. — 503 p.
7. Khrunina N. P., Mamaev Y. A., Pulyaevsky A. M., Stratechuk O. V. New scientific aspects of ultrasonic disintegration of high-clay placer sands in Priamurye. Khabarovsk: Publ. House of Pacific State University, 2011. — 167 p.
8. Patent 2325533 RF, IPC6 Е21С41/30; В03В5/02. Geotechnological complex to develop gold placers. N. P. Khrunina et al.