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波兰能源比较丰富,主要是煤炭,1982年煤炭产量227Mt,占世界第五位,是世界第三煤炭出口国。目前在建硬煤矿井有7座,设计能力2.76Mt/年。我们深井施工考察组考察的几口立井深度都在1000m以上,最大冻结深度760m(卢布林矿区K_2矿一号井全深1125m,冻结深度760m,已掘到底;二号井全深1065m,冻结深度760m,已掘到底)。波兰煤矿深井冻结和凿井技术很有特色,在立井施工速度和效率方面均达到世界先进水平。波兰的深井凿井特点是:施工设备选型大、施工人员和施工设备少、大临工程少、施工速度快、效率高,立井平均成井50m/月。
Poland is rich in energy, mainly coal, with a coal output of 227 Mt in 1982, accounting for the fifth largest in the world and the third-largest coal exporter in the world. At present, there are seven hard coal mines under construction, design capacity of 2.76Mt / year. The depth of several vertical wells we visited in the Deep Well Construction Inspection Team was above 1000m and the maximum freezing depth was 760m (the full depth of Well K_2 mine in the Lublin mining area was 1125m, and the frozen depth was 760m, which had been dug to the bottom. The depth of No.2 well was 1065m, and the freezing depth 760m, have been digging to the end). Polish deep mine freezing and drilling technology is very unique, in shaft construction speed and efficiency have reached the world advanced level. The characteristics of deep well sinking in Poland are as follows: Large selection of construction equipment, less construction workers and construction equipment, less large-scale construction, high construction speed and high efficiency, and the vertical wells have an average well of 50m / month.