| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a safe ground improving construction in unmanned and labor saving manner at a narrow point such as a high dose district which receives constraint about construction time.SOLUTION: An unmanned remote control type boring machine 1 receives a signal from radio transmission means by radio receiving means, and based on the received signal, drives and operates drive/operation control means, for travel, posture control and excavation. After boring a target ground by using a boring rod 5, a hose H is connected, for supplying a curing liquid under a high pressure, to the boring rod 5. By way of the hose H, the curing liquid is jetted under high pressure to a boring part from the boring rod 5. By remotely monitoring rotational speed of the boring rod 5, jetting amount and jetting pressure of the curing liquid, and construction depth, a ground reforming pile 11 which is almost cylindrical is constructed. To be specific, the almost cylindrical ground improving piles 11 are installed continuously to construct a cut-off wall.</p> |
