SPECIAL SONAR TECHNIQUES FOR RECORDING A DETAILED, HIGH RESOLUTION CAVERN GEOMETRY
As part of the general monitoring of cavern operations and for calculating the current volume, the geometry of a cavern is determined from sections recorded at specific depths. When recording these sections the survey head measures either horizontally or at any required angle of tilt. In each individual section the cavern shape is detected by point measurements made at discrete angular intervals.In addition, for determining the shape in certain parts of caverns special sonar techniques are applied that enable the cavity geometry to be measured with a considerably greater survey point density. The spiral technique, in which the cavern shape is sampled spirally, is applied for instance to measure areas with high accuracy, such as in cavern necks, roof structures and cavity constrictions. Special software has been developed for interpreting and spatially presenting the results of these surveys.Besides carrying out spiral surveys the survey point density can be increased also by reducing the vertical interval between two survey horizons or by using smaller angular intervals when recording a section. If still higher data quality is required sections can be recorded several times and subsequently correlated.In this paper the execution of these special techniques and the interpretation of the results are explained with reference to practical examples and the advantages the techniques provide for solving operational problems are demonstrated.
Andreas Reitze Hartmut von Tryller
SOCON Sonar Control Kavernenvermessung GmbH Windmuehlenstr.41 31180 Giesen OT Emmerke, Germany
国际会议
9th International Symposium on Salt(第九届世界盐业大会)
北京
英文
595-603
2009-09-05（万方平台首次上网日期，不代表论文的发表时间）