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Flower tube technology in shaft grouting of Tertiary Application Layer
Rate of only 7; since switching to spend Pipe Technology, the use of duration of 3.5 months, injection of 65 times the amount of injected slurry l084.87m. To complete the grouting of 80, and grouting the passing rate of 85 times. Visible flower Pipe Technology in Tertiary strata used better. Air Shaft 3 grouting drilled using ordinary methods Lining short section of driving, driving and masonry section height 2.2m, metal formwork construction wall. Enhance the driving shaft by a single bucket, pipe under the concrete. Excavation project took 243d, as well l98m, the average monthly as well 24.75m. Drilled shaft in the process, the observed discharge. Assemble in a short section of driving, through 9 floors conglomerate aquifer, the occurrence of water 5 times. Single largest inflow is 18.66m. / H, the cumulative inflow for the full-bore 43.58m. / H, up to 86 pre-grouting effect. Layers section of the measured effects of water inflow and water shutoff Annex. Schedule implementation of Tertiary layer stripping effects of water inflow and water shutoff Note: The real side of the water when the bacteria well as depression and plasma well after the opening strains of the heir when the pro-water. According to borehole water remaining after driving and masonry situation, the borehole water point was blocked. Off shaft end (218m), full-bore water for the remaining 5.87m / h. On this basis, the design department agreed to cancel the set of 0.25m thick wall, from the 4.5m diameter shaft into the net 5m,. Open air shaft for the mining area by providing better conditions Chuo Vol 18 No. 1 February 1997, peak by the CONSTRUCTION TECHNOLOGY red osmium foot MINEcoNSTRUCTIONTECHNOLOGYVo1.18No. 1Feb. 997} operating line of a roadway in West Ming Mine 7P ・ Rock job line d Ximing Coal Mine infrastructure at the cutting Xishan Mining Bureau check cutting ink Guyana Ken (Shanxi Taiyuan) Abstract Ximing Xishan Mining Bureau mine since the end of December 1990 application blocking CTH102F type crawler hydraulic force driving Drill, ZC2B-type side of the main supporting uninstall Rock Rock machine operating line, to December 1992 completed the roadway in 1018, Ximing other three works were completed to avoid foot 1614m, technical and economic benefits achieved good operating line of the roadway features are: to improve the single-Jin; improve the working environment, safety barrier is guaranteed; Efficiency can be achieved by people. The final text of the common accidents with Syria and treatment. Keywords Rock Lane Operating Line Ximing Ximing Coal Mine heading machine construction since the end of December 1990 application CTH10-2F-type crawler hydraulic drill boring car, ZC a type 2B dump rock loader down the main roadway supporting operating line, to the December 1992 completion of the roadway in 1018, Ximing, and North 1018 North First Shihmen five Shihmen three projects were completed the total footage of 1614m,[link widoczny dla zalogowanych], has made good technical and economic benefits. 1 Project Overview 1018 level of Transportation Roadway, north of a five-Shek Mun and Shek Mun North 240 Ximing are 300 million t / a expansion of the main transport roadway, located in the lower part of No. 9 coal seam floor. Through the main rock are limestone, sandy shale, shale and shale, rock hardness coefficient f: 4 ~ 6. North of a maple Shihmen machine from Table 1 of the operating characteristics of line construction engineering project name open eyes wide open eyes boring section of high wall supporting Tong style / m / m / m. 1018 Transportation Roadway 1018 North 1018 North First Five Shihmen Shihmen Shotcrete 132 158 14.6157 anchor anchor Kui Kui 4 l35146 economy and prospects of the project bore depth 218m, earning shaft diameter 5m,[link widoczny dla zalogowanych], the total cost of 4,541,900 yuan, linear meters as well costs about 20,830 yuan, in which the ground pre-grouting 9756 yuan / m, driving and masonry 11,660 yuan / m. The same conditions with the freezing method used over the main shaft of Tertiary aquifer compared to the cost of reducing air shaft about 46.83,[link widoczny dla zalogowanych], 5.1557 million yuan to save money. Full bore casing, designed to stay in the position to spend the aquifer tube, artificial walls, layered pulp Upward injection method only applies to clay and sandy clay ground-based, where there are the multi-conglomerate aquifer Tertiary strata drilled shaft power conditions. Using ground pre-grouting,[link widoczny dla zalogowanych], simplifying the wall structure, water shutoff, long life,[link widoczny dla zalogowanych], no troubles, very significant technical and economic benefits. Therefore, pre-Tertiary Formation grouting method using ground shaft construction, a more extensive adaptability, broad application prospects. Introduction of the Board Paul thorn tube. Male. Born in 1955. Jiaozuo Mining Institute in 1978, graduated from the incumbent chief of Hebi Coal Mining Administration geological exploration company. Engineer. Coal Industry Bureau in Henan Province has been hit Zhu progress second favorite. Published pre-hung plasma Zhu ground operation in the Tertiary strata in the mine shaft the application of 5 1 Tuo Li. Hebi City, Henan Province. Postal Code: 458000. (Received 1995-12-30)
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