发明名称 |
METHOD OF PROTECTION OF MINE ACQUISITION LAND USED FOR RICE PLANTING |
摘要 |
underground coal mining and environmental control. SUBSTANCE: method includes drilling of holes towards each other 3-5 m long and at angles of shifting of depositions to form ditches on hole joints for preservation of water. Distance between ditches equals step of caving or lowering of rocks of bed immediate roof. Ditch sides are reinforced by solutions f heavy clays harmless for rice seedlings. EFFECT: prolonged durability of ground strengthening and efficiency of rice cultivation due to provision of water gathering on rice field and its preservation in vegetable layer of ground. 2 cl, 3 dwg |
申请公布号 |
RU2157891(C2) |
申请公布日期 |
2000.10.20 |
申请号 |
RU19980109430 |
申请日期 |
1998.05.15 |
申请人 |
ROSSIJSKIJ UNIVERSITET DRUZHBY NARODOV |
发明人 |
MASHKOVTSEV I.L.;MASHKOVTSEV B.I.;ZAKIR KHOSSEJN;SAUMITRA N.D.;STANIS E.V. |
分类号 |
E21D11/38;A01B79/00;E02D31/02 |
主分类号 |
E21D11/38 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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