Structural features of occurrence in tunnel model

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Structural features of occurrence in tunnel model analysis

Direction. (3) angle (true angle). Folder structure of the surface and the horizontal plane the maximum angle, ie the angle between the direction perpendicular to the direction. In the above definition and the concept of space based on triangular geometry, summed up the tunnel occurrence within the structural features of the calculation model. 2 Mathematical model of the basic data structure in tunnel-like acting capacity calculation model. Need to have a high accuracy of the tunnel exhibited. Required to do by measuring the time tunnel display map or compass instruments measure the accuracy of the forward direction and the top of the cave tunnel floor, the hole corresponding arm elevation. Accurately measure the structural features in the two holes and the roof of the exposed arm position, rendering them faithfully exhibited in the tunnel of the appropriate position. This is the structural features of occurrence in tunnel model based on the most important first-hand information (continued on page 59): 57.2010 No. 2 WATER maximum amount of water conservancy Teng, evapotranspiration at this time, leaf the main surface transpiration, surface evaporation small. Overall,ugg schuhe deutschland, the evaporation intensity of rice and rice leaf area index is consistent with the ebb and flow process, generally increases with the growth process. Booting and heading in a peak, then gradually decreased. Rice growth from the impact of change on water demand can be seen in the growth period water requirement coefficient is different from the same weather conditions,moncler outlet, water demand and evaporation different, the difference between the effect is due to the crop caused. In addition to weather conditions and water demand related, but also related with the cultivation techniques. Sufficient water supply conditions in the evaporation intensity changes in different growth stages of rice with the change. Evapotranspiration intensity of jointing heading, followed by the end of tillering, booting, evapotranspiration is reviving the minimum period of evaporation is mainly affected by the impact of leaf transpiration. Water requirement of rice leaf is the sum of evaporation and water surface evaporation (ie, evapotranspiration), and foliar evaporation increases with the growth of rice to the milk stage decreases, rice fields of water surface evaporation (that is, between strains of evaporation) is decreased with the growth of rice. Irrigation is mainly from the reduction Tian Jian Zhu Q and reduce leakage evaporation start, only to master the rice water requirement in order to better develop a scientific irrigation system. Received Date】【2009-10-28 [Author] Yue Yang (1980), female, Anshan City, Liaoning Province, Assistant Engineer, is mainly engaged in the water regime and hydrological surveys, and so the work of Telemetry. (Continued from page 57) 3 calculation model 0123456 \ \ hole arm \ C4 \,, front of the cave; direction of roof \ / /, / \ / / / / The arm 01Z) 46 Figure 1 Figure 1 shows tunnel in: the Yunnan Xuanwei Wanjiakouzi the left bank of dam site area in square holes PD1 a fault. To find fault with the roof and the two arm holes out of the dew point interchange (in the same elevation),ugg italia, and its connection, and then two holes in the left arm to find fault with ~ out of elevation at the dew point,Moncler prezzi, and its connections, as shown in Figure 1 in the mouth, its direction is the extension of the fault on both sides of the trend line. Figure and symbols of other segments as follows: Ⅱ,tory burch boots, o to the fault line; values can be based on the way forward with the tunnel to determine the angle, 0, O, I structural features for any two points on the same line of elevation; 6 for the direction of the tendency for the two to the length of the horizontal distance between the lines, according to tunnel from the map the way forward in time or quantity taken; c for the height difference between the two into line, you can read from Figure 1 or the amount taken. Then the (real) angle of mathematical models: coffee = arctaIl guide. 4 Detection of calculation model of engineering practice summed up the tunnel under the above occurrences within the structure model. Xuanwei Yunnan dam site Wanjiakouzi 10 adit display accurately drawn map, select a structure inside the exposed surface in good structural features a total of 12, carried out field measurements and with mathematical model to calculate the comparison of occurrence, compared to the results exactly. Mathematical model based on the above findings and test results, structural surface of the adit exposed within the incomplete measurement of the structural features of low accuracy of the mathematical model used in all. And statistical calculations were indoor, and eventually the application of survey results to design indoor occurrence as the basis. And in July 2005 the results of the survey and review by recognized experts in Yunnan Province. 5 Conclusion structural features in tunnel-like space calculation model of production to make up the inside of traditional measurement methods for Large Diameter. Smooth Blasting leaving high wall structural features within the measured occurrence is difficult, lack of low precision, so that the results of survey data on structural aspects of the true, accurate, and for the relevant level, the accuracy of the profile provides a favorable draw security, optimization and construction so as to provide a theoretical basis for a reasonable arrangement. Received Date】【2009-09-22 [Author] Yang Feng Bao (1953 -), male, Shandong, senior engineer, engaged in technical management. -59.

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