| 单词 | rock bolting |
| 释义 | > as lemmasrock bolting rock bolting n. chiefly Mining the practice or technique of using rock bolts; (also) rock bolts collectively; cf. roof bolting n. at roof n. Compounds 3. ΘΚΠ society > occupation and work > industry > mining > [noun] > other specific mining processes > in coal-mining outstroke1747 holing1841 coal-cutting1842 patio1845 sumping1849 bottoming1856 salting1856 patio process1862 spragging1865 yardage1877 booming1880 brushing1883 filling1883 sounding1883 yard-work1883 blanketing1884 goafing1888 freezing process1889 power loading1901 bashing1905 rock dusting1915 mucking1918 solid stowing1929 stone-dusting1930 roof bolting1949 rock bolting1955 1955 L. A. Panek in Rep. Investigations U.S. Bureau of Mines (1956) No. 5154. 1 The practice of roof bolting or rock bolting to stabilize rock surrounding underground excavations has increased..within a few years. 1989 Constr. News 8 June 29/1 Soon after blasting, the roof was stabilised with steel fibre reinforced shotcrete and rockbolting. 2008 Herald Express (Torquay) (Nexis) 28 Sept. 23 Any future rock bolting would not employ the same technique and would not in his view fracture the slate as the previous ones had. < as lemmas |
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