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为了加快矿井建设速度,当前关键之一是加快立井的施工速度,在岩层涌水较大的情况下,应积极采取注浆堵水措施,事实也已经证明,采用地面预注浆或工作面预注浆方法将能为凿井施工创造良好条件,是凿井机械充分发挥效益的必要前提。但是,在一些特殊条件下,注浆效果尚无绝对把握,或者因某些情况限制,采取注浆封水有困难、而凿井期间井筒涌水量仍然较大时,不得不采用强行通过的办法。本文所介绍的经验,则可作为该种条件下施工时的参考。
In order to speed up the speed of mine construction, one of the key issues at present is to accelerate the construction speed of shaft. In the case of large gushing water, it is necessary to actively take grouting and water blocking measures. Facts have proved that the use of ground pre-grouting or face pre-injection Slurry method will be able to create good conditions for the construction of drilling, sinking machinery is necessary prerequisite for full benefits. However, under some special conditions, the grouting effect is not yet absolutely sure, or due to some restrictions, the use of grouting water is difficult, and well watering well during sinking is still large, had forced the adoption of the method . The experience presented in this article can be used as a reference for construction under these conditions.