Show NEW SYSTEM TO THAW GROUND valdez alaska jan 6 what whai is known as the miles system for thawing frozen ground the idea for it having originated with J H miles general manager of the alaskan mines corporation has been put to the test in the candle section and has proven of ZD great reat value those who watched it in operation say that it has come to stay and will replace the old system of steam thawing frozen ground round it is employed on the pierce dredge owned by pierce johnson the two former having havin b been brought out by this summer on candle creek and had been an unqualified success they are thawing ground and dred dreding dredging ing the frozen dirt the cawing having been carried out at less actual expense than 5 cents a foot they have discarded the old method stripping for which they used a fifty horsepower t gas engine and instead used the miles system wholly T the he method they use is to secure the water from a high not exceed line ditch but the pressure should foot fall fa that secured from a twenty 1110 in nose hose this is led with a two inch canvas the water wa an inch pipe the latter leading into the muck in a hole previously picked pic pipe then 1 through h grass and tundra the the do down an 1 m automatically thaws and drops sonie s being muck and gravel the water of 62 0 de where around the temperature grees and giving up in its circulation circulation froba less the tal fifteen to twenty y two heat units the a lid pressure the slower the circulation water wat the more heat surrendered from Ws th water from the pipe pip this manhole the wide eighties ight eight feet Iee a hole twelve feet deep and e in ill twenty four hours |