WORKING-STATE CHECK-UP METHOD OF DRAIN BOARD IN THE UNDERGROUND POOR SUBSOIL

摘要

The present invention relates to a method for confirming the depth of construction of the continuous pouring drain, which makes it easy to check the exact depth of construction of the series of drain drain continuously poured in the predetermined depth of the ground in the strengthening soft ground, casing Injecting the guide casing 10 to a predetermined depth at a predetermined position of the soft ground with a pourer, draining groundwater to the ground inside the guide casing 10 and having a length about the depth of the guide casing 10 ( 20), while the upper end portion is inserted and installed so as to have an exposed portion 21 exposed to the ground, and the reinforcement of the soft ground by drawing and removing the guide casing 10, the drainage drain ( 20) is continuously displayed on a part of the drainage drain at a certain length so as to check the construction depth installed in the ground. The marking part 30 which can know the total length is displayed, and it is displayed on the ground exposed part 21 of the drain drain 20 which is thrown into the ground first, and the ground exposed part 21 of the drain drain 20 which is added later. It is possible to easily check the construction depth of each of the drain drain is continuously introduced through the marking portion 30 is.