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Jinshandian Iron Gate underground water chamber construction

Level of communication line ÷ 3.2 injection test (1) Calculate the volume of storage space for the roadway, according to the flow of water injection, the projected water needed to fill the time. (2) removal of water within the roadway materials, equipment and other debris. Turn off water gate, sluice gate valve, check the tightness. (3) the size of the waterproof wall pressure gauge can be read through the drain to know. After impounding began, to observe the surrounding rock and nearby roadway leakage situation, make a record, at any time decide whether to continue testing the design and construction of metallurgical and mining 34 No. 1 (4) Subject to the injection pressure to meet the design requirements of pressure. There remain abnormal after 8h, to end testing. (5) drainage through the drain holes, open the water door, check its deformation. Character sets specifications, signed by the parties concerned can be recognized. 3.3 Safety measures (1) to ensure that the level of a 130ill Ingate Ingate to a 410m level of communication links, to ensure that abnormal water pressure to quickly close the valve case, stop water injection test (2) observe water injection and the valve is leaking, the normal gauge pressure is increased, adverse situations that should be suspended for testing, reinforcement and repair or replacement of pipeline pressure gauge, and eliminate hidden dangers before you can continue testing. (3) If it is found or seepage water tunnel wall, or water injection rate greater than the amount of calculation is clearly against the construction of quality problems or grouting fractured rock mass, should stop the test, re-grouting of the wall or water reservoir sealing cracks and then spray the water tunnel experiment. (4) injection test, and found water Mifengbuyan or deformation of the door, they should immediately stop the test, turn on the water check, and notify the manufacturer with the suggestion for settlement. In this paper, waterproof underground Jinshandian Iron Gate chamber, for example, a brief description of the construction of water points chamber door. Construction in a waterproof chamber door, the chamber is often easy to overlook the site, grouting and pressure testing, water quality chamber door also can not guarantee the safety of the mine that will bring great production risk. Water in the underground chamber door is just a small engineering projects, but it is important to ensure mine safety. Population [1: Specification for the current building structure is too wide [M] Beijing: Construction Industry Press Du. 】 9972792: Zhang Fumin, et al. Mining Design Manual () F more work volume j [M] Beijing: Construction]: Industry Publishing} t. 1986.760-7643] Shen Liang Cui Yunlong Wang Zhu bee season, so every \resources \January mineral resources management in the national work conference that the reserves of mineral resources through the systematic analysis of the situation, has now come to our country for mineral resources to ensure capacity and level of economic development, basic understanding, this is the total amount of mineral resources in China rich, full range, but the economy has been the availability of mineral resources exploration and economic significance of difference is not clear two-thirds share of reserves, and can be taken and the low proportion of pre-recoverable reserves, 45 major mineral resource reserves available rate of decrease too, indicating that the mineral resources to China's economic and social downward trend in the level of protection reported that reserves of mineral resources is to develop national and local economic and social development plans of the important basis and foundation, it will help to improve the regional distribution of mineral resources development , so that deposits of mineral reserves, mining the scale of size and fit, adjusting the layout and structure of mining, an important guiding role. In recent years, national organizations, small-scale mining units and advantages of reasonable development and utilization of mineral resources policy research, to be suspended for the second consecutive year issued by the rare earth, coal and other mineral mining license 8 provides the basis for measures to be taken. Tianfeng Hill said the national ownership and control of mineral resources is an important part of overall national strength. the rapid development of economic globalization and China's accession to WTO, not only for us rational use of two resources and two markets offer opportunities and conditions more favorable, also requires that we must clearly recognize the severe challenges facing. At present, the world's major countries more and more intense competition for strategic resources, mineral resources strategic position and role in safeguarding national security more and more attention from various countries. systematic, comprehensive and accurate grasp of the stock of domestic and foreign mineral resources, and dynamics, to find out the real situation of China's mineral resources, is both a rational use of two resources and markets important prerequisite for scientific decision-making power is the stock of the situation and ensure the safety of national resources necessary requirement [magazine correspondent)
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