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我们在修建巫溪至开县公路的沙田段工程中,石方数量很多,需要爆破的坚石就达27万多方。施工地区多为高崖陡坡,是山鹰、猿猴的聚居场所,作业颇为困难。筑路分队全由建勤民工组成,爆破知识较差。鉴于上述情况,抓好爆破作业,对多快好省地修筑这段公路具有主要作用。在爆破领域内,着重解决适当用药和符合地形、地质特点的爆破方法是搞好爆破作业的关键。为此,我们种了试验田,作为对各类岩石系数的试验,与此同时摸索一些相适应的操作方法。通过爆破作业的反复实践表明,药壶炮与小排炮相结合的爆破方法,既适应我们完全由人工打炮眼的施工装备,又能提高工效,降低耗料。
In the construction of the Shatin section of Wuxi-Kaixian Highway, we have a large number of stone-pavers and more than 270,000 square feet of solid stone to be demolished. Construction area mostly high cliffs steep slopes, is a mountain eagles, ape’s place of residence, homework is quite difficult. Road construction team all composed of Jianqin migrant workers, blasting knowledge is poor. In view of the above, grasping well the blasting operations plays a major role in the construction of this section of the highway, which will be carried out more quickly and economically. In the field of blasting, it is the key to do a good job of blasting operation that the blasting method that focuses on appropriate medication and meets the topography and geology characteristics. For this reason, we planted the experimental field as a test for various rock coefficients and at the same time explored some appropriate methods of operation. Repeated practice shows that blasting operations, pots and small cannon combination of blasting method, not only to adapt to our entirely by artificial eye hole construction equipment, but also improve work efficiency and reduce consumption.