4月20日，云南勐绿2标炮竹箐1号隧道顺利进洞施工。
泡竹箐1号隧道右线全长3781m，最大埋深250.538m；左线全长3742m，隧道区海拔高程介于836.641～1124.048m之间，相对高差287.407m。
此隧道是勐绿2标第3个进洞隧道，隧道地质条件差，安全隐患多，施工难度大。自进场以来，施工单位克服了场地、气候、交通、电力等不利因素影响，根据计划对人、材、机等生产要素进行提前筹划，科学管理、合理调配、精心施工，克服重重困难，确保各项工作顺利推进，为隧道安全、快速进洞施工打下了坚实的基础。
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