论文部分内容阅读
目前,我国大小采石场基本采用硐室爆破、深孔爆破、浅孔爆破等进行采石作业,但不管是哪一种,都很难通过一次爆破达到理想的块度要求,因此还需进行二次破碎。对于要求较高的二次破碎,可采用静态破碎剂、导爆索水压爆破和光面预裂爆破等。在一般的采石场中,由于受到施工条件、施工技术和破碎要求等因素的制约,通常采用外部接触爆破和有填塞的内部爆破,外部接触爆破所需装药量大、成本高、噪音大,且碎
At present, the quarrying of large and small quarries in our country mainly uses the chamber blasting, deep-hole blasting and shallow-hole blasting to carry out the quarrying operations. However, it is very difficult to achieve the ideal blockiness requirement by one blasting, so it needs to be carried out Secondary crushing. For the secondary crushing of higher requirements, can be static crushing agent, detonating cord water pressure blasting and smooth pre-cracking blasting. In the general quarry, due to construction conditions, construction techniques and crushing requirements and other factors, usually using external contact blasting and stuffed internal blasting, external contact blasting required large amount of charge, high cost, high noise , And broken