摘要:
PROBLEM TO BE SOLVED: To provide a connection member with a sensor capable of detecting deformation of a ground insertion pipe at high sensitivity when the ground insertion pipe inserted into ground is deformed.SOLUTION: A connection member 1 with a sensor is a connection member for rigidly connecting a plurality of pipe materials 2 composing a ground insertion pipe 3 to be inserted into ground. A connection member body 5 is a hollow or solid cylindrical body and is constituted by attaching a sensor 8 using a distortion gage for detecting deformation generated in the pipe materials 2 to the outer peripheral surface or the inner peripheral surface of the cylindrical body when the cylindrical body is hollow, or attaching the sensor 8 to the outer peripheral surface when the cylindrical body is solid. The rigidity of a portion to which the sensor 8 is attached is set lower than the rigidity of the pipe material 2. Since the rigidity of the portion to which the sensor 8 is attached is lower than that of the pipe material 2, deformation generated in the ground insertion pipe 3 inserted into ground can be detected at high sensitivity by the sensor 8 attached to the portion. When the sensor 8 is attached to a groove, the sensor 8 is not brought into contact with a porous wall when inserting the pipe materials 2 into the ground, and the sensor 8 can be prevented from being damaged.
摘要:
PROBLEM TO BE SOLVED: To provide a slope stabilizing method for suppressing the outflow of sediment in a stable surface layer as well as stabilizing a slope. SOLUTION: In this slope stabilizing method, a large number of anchors 1 are installed in the slope and a bearing member 2 is mounted and fastened to the head of each anchor 1 to provide bearing pressure to the ground. The heads of the respective anchors 1 are connected by a wire rope 3, and surface layer sediment out flow suppressing members 5, 5' which are made from wire rods and generally cylindrical mesh texture capable of interrupting the movement of surface layer sediment downward on the slope are mounted to the wire rope 3. Trees are left to stabilize the slope, and at the same time, the outflow of surface layer sediment caused by rainwater can be suppressed by the surface layer sediment outflow suppressing members 5, 5'. COPYRIGHT: (C)2008,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a boring method selecting method for easily selecting an appropriate boring method in a slope stabilizing method for stabilizing the ground while leaving standing trees which have grown on the slope. SOLUTION: In a first step S01, whether the standing trees exist is determined, and if no standing tree exists, it is regarded as outside the object. In a second step S02, whether the density of the standing trees is denser or sparser than a predetermined reference is determined, and if sparser, it is regarded as outside the object. In a third step S03, whether non-self-support of hole walls is clear is determined, and if non-self-support is clear, a double pipe boring method is selected. In a fourth step S04, whether self-support of the hole walls is clear is determined, and if self-support is not clear, a self-boring method is selected. In a fifth step S05, whether a borehole length is longer or shorter than a predetermined value is determined, and if longer, the self-boring method is selected, while if shorter, a single pipe boring method is selected. COPYRIGHT: (C)2007,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To enable a rock bolt 1 to be installed near a prescribed position as much as possible while avoiding a tree 4 when there is the tree 4 at the prescribed position at which the rock bolt 1 has to be installed.SOLUTION: When installing a plurality of rock bolts 1 on a natural slope at predetermined intervals, attaching pressure bearing plates 3 of a substantially triangular shape in a plan view to heads of the rock bolts, respectively, and fastening them to stabilize the slope: if there is a tree 4 at a prescribed position at which the rock bolt 1 has to be installed, an installation position of the lock bolt is a position of the lock bolt where the pressure bearing plate is arranged close to the tree in a direction in which one side of the substantially triangular shape of the pressure bearing plate 3 to be attached to the head of the lock bolt faces the tree 4, and the pressure bearing plate is attached to the head of the lock bolt in a direction in which one side of the substantially triangular shape faces the tree.
摘要:
PROBLEM TO BE SOLVED: To provide a drainage structure capable of effectively removing both surface water and seepage water and excellent in workability, construction cost, drainage performance, and the like.SOLUTION: In a drainage structure of a slope ground, a main vein drain channel 2 in a slope longitudinal direction is installed in a slope 1, and a lateral vein pipe 3 partly exposed from a ground surface is connected to the main vein drain channel at a downgrade from a slope lateral direction. A water collection pipe 4 having water collection holes 4a is inserted into the ground and an end thereof is connected to the lateral vein pipe. A surface water collection port 8a capable of collecting water flowing down from the upper section of the slope is provided in the lateral vein pipe. Rainwater enters inside of the lateral vein pipe from the surface water collection port of the lateral vein pipe, seepage water is taken in by the water collection pipe and enters the lateral vein pipe, and all of them flows into the main vein drain channel, flows downward, and is discharged from the slope round. Both the surface water and the seepage water can be effectively discharged. Drainage of the seepage water is carried out by utilizing the lateral vein pipe and the main vein drain channel in common with surface water collection means. Therefore, the drainage is remarkably efficient, the workability is excellent, and the construction cost can be reduced.
摘要:
PROBLEM TO BE SOLVED: To provide a footrest for two-wheel vehicle having a light emitting device for visual recognition which enables the rider of a following two-wheel vehicle or the driver of a following four-wheel vehicle to easily view the footrest for two-wheel vehicle being used.SOLUTION: A footrest 1 for two-wheel vehicle is installed on the road side and is used such that a rider of a two-wheel vehicle puts one leg on the footrest 1 when the rider keeps a stopping state. In the footrest 1 for two-wheel vehicle, a foot holding top face 11 has such a height that the rider of the two-wheel vehicle puts one leg on the foot holding top face 11 of the footrest 1 for two-wheel vehicle to keep a stopping position, and the footrest 1 for two-wheel vehicle is provided with a light emitting device for visual recognition which is energized and emits light when one leg is put on the foot holding top face 11.
摘要:
PROBLEM TO BE SOLVED: To provide an unevenness adjusting mat of high versatility easily worked, manufactured at a low cost, hardly producing a remainder material, and easily coping with bearing plates of various shapes. SOLUTION: The unevenness adjusting mat 11 is arranged between the bearing plate and the ground in executing a slope stabilizing method of distributing and inserting a large number of anchors in a slope and arranging and fastening the bearing plate to the head of each anchor so that the anchor head penetrates an anchor through-hole of the bearing plate. The unevenness adjusting mat 11 is formed by folding a strip body 11a resilient in the thickness direction, at a plurality of parts to surround the anchor. The anchor through-hole 11c is formed at the center part. The unevenness adjusting mat having the anchor through-hole and an outline suitable for the shape of the bearing plate can be easily obtained without needing cutting work for adjustment to the shape of the bearing plate. COPYRIGHT: (C)2010,JPO&INPIT