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The sensitivity of surface movement of observation station


The elevation view of the value of Lj j Huan viewing angle is a strong impact factors. Moving from the surface deformation of the basin-like subsidence shows, full extraction cases observed at the center of the basin elements fade effects observed elements, the edge of the basin, near the inflection point for the crescendo of observation elements of observation elements. Especially those located in the observation element of the online equivalent of sinking a weak element of observation. 4 linear and mesh stations shown in Figure 2 the sensitivity of the six stations of analog layout program. Mining coal mining area in the level of the square, geological conditions of stability, subsidence was approximately circular contour distribution. Two stations for the same design, and other rights for the observation error of unit weight 6. = 5mm/km, distance between two adjacent measurement points l. = 15m. The six layout options were 1. Linear observation station, the direction and orientation along the observation line of the layout of a '2. Simple semi-mobile network stations basin, basin,[link widoczny dla zalogowanych], Lang wings in the mobile half of the additional j8. Simple mobile network base stations basin, which flanks the mobile provision of a basin, 4. 8 on the basis of the program, four additional middle and bottom edge of the triangle standard line, 5. Mesh-based observatories 6. In Scenario 5, based on the two additional levels on the main diagonal line. Surface at any point P (x, Y) of the sinking deformation simulation by the following formula (3) W (X, Y) = Wmax ・ Cx ・ CY (16) where Wmax is the largest mobile basin subsidence,[link widoczny dla zalogowanych], Cx, Cy for the next Shen distribution coefficient. Form deformation vector by the w (X, Y) of the units obtained. Table 1 shows the design of the next 6 to monitor the sensitivity of the value of subsidence deformation. As can be seen from the table, the sensitivity of the various observing programs or less,[link widoczny dla zalogowanych], compared to Option 1 program 5 sensitivity improved 50, and observing the workload has increased by nearly 8 times. Therefore, a compromise between sensitivity and cost perspective,[link widoczny dla zalogowanych], Option 1 is a good throwing program. 5 Conclusion (1) Free level monitoring network, the network can not find the overall down} (2) basin subsidence ground movement and observation elements of the online equivalent of observing the weak elements, rock elements line direction for the crescendo of observation observation elements, ( super full extraction, the Observatory for the linear, increase the salt flat in the sink at the observation precision of the observation station elements of the spirit of ~ / l \ ooL 』observation station layout plan in Figure 2 shows solid drug Female 1】 4 of Shandong Mining Institute, Vol 9, almost no effect on sensitivity, and enhance the basin edge, inflection point near the observation accuracy of the elements of a great influence on the sensitivity of observatories l (4) sensitivity and observations from the perspective of the cost of compromise , the traditional linear observation station is still a good program. Table l sensitivity values of various design References 1 Zheng-Lu Zhang. Deformation monitoring http network sensitivity analysis. Wuhan University of Surveying and Mapping, 1986 (B) 2 Tao of the algae. Free network adjustment and deformation analysis. Exhaust painted Press, 19,848 Chinese Mining Institute, eds. Coal strata and ground movement. Coal Industry Press, 198] 4HeckBSensitivitat $ ana1ys. geodatischerDeformationsnetze. N, 1986 (5) THESENSITIVITYANALYSISF0RASURFACEM0VEMENT0BSERVAT10NSTAT10NLiuWenbao '(Dept.o, Coal [icedGeo $.) ABSTRACTFhisarticlepresentstheinfluenceofsensitivitygivenbyobse-rvingelements. Fromsensitivityindexpqintofviewwestudiedtheratio-nalityofbothline-. shapedandher-shapedstationsandconcludedthattheline-shapedstationietterformonitorin § thesureaeemovementKEYWORDS: surfacemovement,, observation,[link widoczny dla zalogowanych], sensitivity} infl ~ ecingcharacterlstieFREEWORDS: observationstationlobservingelement; graphveetor ~ deformationvector
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