. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . able to hold opena heading of sufficient area to give accessby small hand wagons to the drills be-\ond. This short length entailed a delayof 6 months. After traversing another 2% miles, hotsprings with a maximum flow of 4,330gallons per minute and a temperature ofabout 113° Fahr. were encountered, but bytaking the water of the cold spring andthrowing it into the crevices of the hot,the heading was made bearable. During these delays to the south end,the north end had been advancing withincreas
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . able to hold opena heading of sufficient area to give accessby small hand wagons to the drills be-\ond. This short length entailed a delayof 6 months. After traversing another 2% miles, hotsprings with a maximum flow of 4,330gallons per minute and a temperature ofabout 113° Fahr. were encountered, but bytaking the water of the cold spring andthrowing it into the crevices of the hot,the heading was made bearable. During these delays to the south end,the north end had been advancing withincreasing rapidity, and had reached thecentral summit of tunnel; to avoiddelay, however, the heading, hitherto onthe level of the floor of,the tunnel, wasmade to rise on a gradient of I per 1,000. When the advance heading reachedthe roof level of the future^tunnel, work-ing down hill was attempted, but finallywork on the Swiss side was abandoned,the drills were withdrawn and the heavyiron doors which had been erected wereclosed March 20th, 1904. Completionwas thus left to the south advance, whose. S.\N1> CAR FOR R-. BONDING. drills could just be heard through theintervening 1,094 yards of rock. On the 24th February, 1905, at 6 a. m.,the final charges on the Italian side wereexploded in the roof of the gallery. April, .iX)7. RAILWAY AND LOCOMOTIVE ENGINEERING 147 blowing a hole about 8 ft. by 2 ft. intothe floor of the Swiss heading above. The first train passed through on the2Sth January, 1906, and on the 19th Maythe King of Italy travelled in a special
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
