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Reasonable exploitation solution for longwall in Seam L7 at East Side to ensure the stability of G9 surface works of Mong Duong Coal Mine

When exploiting the working face located under the surface works need to be protected, it may lead to potential risks that cause unsafety and effect for the stability of those works. The degree of influence on the surface works depends on many factors, including the exploitation technology factor. It is always necessary to study and evaluate the impact of mining on the surface works to propose appropriate technical solutions and mining technology to ensure the safety during mining process. |