{"product_id":"2940013458628","title":"Use of a Sodium Silicate Gel Grout for Plugging Horizontal Methane-Drainage Holes","description":"Methane-drainage holes must be completely filled by grout before mining to prevent the emission of large quantities of gas during mine-through, which would constitute an explosion hazard. In November 1980, seven horizontal holes at the multipurpose borehole, a small-diameter shaft drilled as a Bureau of Mines coalbed methane-drainage installation on the property of the Federal No. 2 Mine, Monongalia County, West Virginia, were plugged using a sodium silicate gel grout. This report describes the grout mix and the use of the grout at the multipurpose borehole, and discusses the results observed upon mine-through of the holes in early 1981. Cost data for the sodium silicate grout are also presented.","brand":"1001 Property Solutions LLC","offers":[{"title":"Default Title","offer_id":47145683321072,"sku":"2940013458628","price":1.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/2940013458628_p0.jpg?v=1763581754","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/2940013458628","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}