Many conveyance and hydropower projects including many hydraulic tunnels are built since 1949. A lot of experiences at the construction of tunnel are accumulated.
新中国成立之后，我国进行了大规模的水利水电建设，修建了许多水工隧洞，积累了许多经验。
参考来源 - 深埋长隧洞围岩稳定性及支护结构设计研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Building of hydraulic tunnels with high head and large diameter increase gradually, and the underground reinforced concrete branch pipe is adopted in more and more projects.
相应的高水头大直径水工压力隧洞的建设也逐渐增多。并且越来越多的工程采用地下钢筋混凝土岔管。
Can be widely used in mining the use of electric, pneumatic, hydraulic bolt drilling products mines, railway tunnels, metallurgical engineering and other industries.
能广泛服务于矿用使用电动、气动、液压锚杆钻机产品的矿山、铁道隧道、冶金工程等行业。
Cracks of different levels exists in hydraulic tunnel concrete liner. The prevention of liner concrete cracking at tailwater tunnels and measures on different levels cracking are discussed in detail.
水工隧道混凝土衬砌均存在不同程度的裂缝，本文介绍了尾水隧洞衬砌混凝土裂缝预防和不同类型裂缝的处理办法。
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