INSTRUMENT MEASURING UNDERGROUND STRESS AND METHOD MEASURING OF GROUND MOVEMENTS IN CASE OF BUILD IN TUNNEL

摘要

The present invention is constructed underground stresses that measures the soil behavior and determine the stability of the tunnel before the tunnel and instruments, as a method of measuring soil behavior during tunnel construction using the same, inside the additional extrusion is retracting to the outside from the front body and the rear body partitioned by the partition plate body is in close contact with the inner surface of holes which are bored in the ground in the horizontal and vertical directions causing the position change due to the stress applied to ground, and the underground stress instrument displacement meter incorporated in the extrusion unit detected by measuring the ground stresses transmitted by the data logger to an electrical signal, a ground at the tunnel face of the tunnel, the stress instrument Ground to the instrument by inserting a stress hole punched in the forward of the ground to be extruded body portion in close contact with the inner surface of the underground hole, horizontal drilling, and the current pattern, the graph represented by a continuous real-time measuring the change in the ground in a vertical stress applied is to understand the behavior of Zibo tunnel measurements on soil behavior proactive way to get it.