| 摘要 |
PROBLEM TO BE SOLVED: To provide a buried object indicator that makes it possible to more securely recognize the existence of a buried pipe than before.SOLUTION: A sheet to be buried, a buried object indicator, comprises: a base body in a sheet shape; and a plurality of capsules that are formed integrally on one surface of the base body, include sealed coloring matter inside, and are to be burst by being buried and pressed. At least part of the capsules may be formed from biodegradable resin. Soil in a certain range under the sheet to be buried is uniformly colored only by burying and pressing the sheet to be buried, and more securely colored in the case of using capsules formed from the biodegradable resin. The sheet to be buried, because of its sheet shape, is easy to store or carry; construction of the sheet to be buried is simple because the construction is finished only laying the sheet to be buried in a groove.SELECTED DRAWING: Figure 1 |
