Construction methods for preventing land erosion and improving streams, or for revetments, and construction methods for preventing mountain landslides

A construction method for a revetment, comprising:

• (a) a step of directly or indirectly fixing at least one longitudinal cable (1) to a base point (2);
• and
• (b) a step of mooring at least one barrier-like member (3) directly by using said longitudinal cable (1) or by using a mooring cable (4) connected to said longitudinal cable (1), so that said barrier-like member (3) is provided in a stream or a river and along its bank.

A construction method for preventing mountain landslides, comprising:

• (a) a step of directly or indirectly fixing at least one longitudinal cable (1) to a base point (2) so as to provide the longitudinal cable (1) on both sides of a mountain across a ridge of the mountain;
• and
• (b) a step of mooring at least two barrier-like members (3) directly by using said longitudinal cable (1) or by using a mooring cable (4) connected to said longitudinal cable (1), 50 that the at least two barrier-like members (3) are provided on each side of the mountain at an appropriate interval in the direction of the height of a mountain with the longer dimension of each barrier-like member (3) extending substantially at right angles to the direction of the height of the mountain.

A land-erosion-preventive or site am-imp roving structure comprising at least one longitudinal cable (1), a base point (2), and at least two barrier-like members (3), and further and optionally a mooring cable (4) and/or an auxiliary cable (5), wherein said longitudinal cable (1) is fixed to said base point (2) directly or indirectly via said auxiliary cable (5), and wherein said barrier-like members (3) are moored directly by using said longitudinal cable (1) or by using said mooring cable (4) connected to said longitudinal cable (1), so that the barrier-like members (3) are provided in a stream or a river substantially perpendicular to the direction of the current of water at an appropriate interval in the direction from the upper end to the lower end of the stream or river.

A land-erosion-preventive or stream-imp roving structure comprising at least two longitudinal cables (1), a base point (2), at least one lateral cable (7), and at least two barrier-like members (3), and further and optionally a mooring cable (4) and/or an auxiliary cable (5), wherein said longitudinal cables (1) are fixed to said base point (2) directly or indirectly via said auxiliary cable (5), and are connected to each other with said lateral cable (7), and said barrier-like members (3) are moored directly by using said longitudinal cables (1) and/or said lateral cable (7), or by using said mooring cable (4) connected to each longitudinal cable (1) and/or said lateral cable (7), so that the barrier-like members (3) are provided in a stream or river substantially perpendicular to the direction of the current of water at an appropriate interval in the direction from the upper end to the lower end of the stream or river.

A revetment structure comprising at least one longitudinal cable (1), a base point (2), and at least one barrier-like member (3), and further and optionally a mooring cable (4) and/or an auxiliary cable (5), wherein said longitudinal cable (1) is fixed to said base point (2) directly or indirectly via said auxiliary cable (5), and said barrier-like members (3) are moored directly by using said longitudinal cable (1) or by using said mooring cable (4) connected to said longitudinal cable (1), so that said barrier-like members (3) are placed in a stream or river and along its bank.

A mountain-landslide-preventive structure comprising at least one longitudinal cable (1), a base point (2), and at least two barrier-like members (3), and further and optionally a mooring cable (4) and/or an auxiliary cable (5), wherein said longitudinal cable (1) is fixed to said base point (2) directly or indirectly via said auxiliary cable (5) so as to provide the longitudinal cable (1) on both sides of a mountain across a ridge of the mountain, and said barrier-like members (3) are moored directly by using said longitudinal cable (1) or by using said mooring cable (4) connected to said longitudinal cable (1), 50 that the barrier-like members (3) are provided at an appropriate interval in the direction of the height of a mountain with their longer dimensions substantially at right angles to the direction of the height of the mountain.

A mountain-landslide-preventive structure comprising at least two longitudinal cables (1), a base point (2), at least one lateral cable (7), and at least two barrier-like members (3), and further and optionally a mooring cable (4) and/or an auxiliary cable (5), wherein said longitudinal cables (1) are fixed to said base point (2) directly or indirectly via said auxiliary cable (5) so as to provide the longitudinal cables (1) on both sides of a mountain across a ridge of the mountain, and are connected to each other with said lateral cable (7), and said barrier-like members (3) are moored directly by using said longitudinal cables (1) and/or said lateral cable (7) or by using said mooring cable (4) connected to each longitudinal cable (1) and/or said lateral cable (7), so that the barrier-like members (3) are provided at an appropriate interval in the direction of the height of a mountain with their longer dimensions substantially at right angles to the direction of the height of the mountain.

A land-erosion-preventive or stream-improving structure comprising a lateral cable (7), at least two base points (2), and at least one barrier-like member (3), and further and optionally a mooring cable (4) and/or an auxiliary cable (5), wherein said lateral cable (7) is fixed to said base points (2) directly or indirectly via said auxiliary cable (5), and said barrier-like member (3) is moored directly by using said lateral cable (7) or by using said mooring cable (4) connected to said lateral cable (7), so as to be provided in a stream or a river substantially perpendicular to the direction of the current of water.

A construction method for preventing mountain landslides, comprising:

• (a) a step of directly or indirectly fixing at least one longitudinal cable (1) to a base point (2) constituted by a cable that is wound around a mountain;
• and
• (b) a step of mooring at least two barrier-like members (3) directly by using said longitudinal cable (1) or by using a mooring cable (4) connected to said longitudinal cable (1), so that the at least two barrier-like members (3) are provided at an appropriate interval in the direction of the height of the mountain with the longer dimension of each barrier-like member (3) extending substantially at right angles to the direction of the height of the mountain.

A mountain-landslide-preventive structure comprising at least one longitudinal cable (1), a base point (2), and at least two barrier-like members (3), and further and optionally a mooring cable (4) and/or an auxiliary cable (5), wherein said barrier-like members (3) are moored directly by using said longitudinal cable (1) or by using said mooring cable (4) connected to said longitudinal cable (1), so that the barrier-like members (3) are provided at an appropriate interval in the direction of the height of a mountain with their longer dimensions substantially at right angles to the direction of the height of the mountain, said base point (2) is provided on a slope of the mountain opposite the side of the mountain on which said barrier-like members (3) are provided, and said longitudinal cable (1) is fixed to said base point (2) directly or indirectly via said auxiliary cable (5) across a ridge of the mountain.

A mountain-landslide-preventive structure comprising at least one longitudinal cable (1), a base point (2) constituted by a cable that is wound around a mountain, and at least two barrier-like members (3), and further and optionally a mooring cable (4), wherein said longitudinal cable (1) is fixed to said base point (2), and said barrier-like members (3) are moored directly by using said longitudinal cable (1) or by using said mooring cable (4) connected to said longitudinal cable (1), 50 that the barrier-like members (3) are provided at an appropriate interval in the direction of the height of the mountain with their longer dimensions substantially at right angles to the direction of the height of the mountain.

A mountain-landslide-preventive structure comprising at least two longitudinal cables (1), a base point (2), at least one lateral cable (7), and at least two barrier-like members (3), and further and optionally a mooring cable (4) and/or an auxiliary cable (5), wherein said barrier-like members (3) are moored directly by using said longitudinal cables (1) and/or said lateral cable (7) or by using said mooring cable (4) connected to each longitudinal cable (1) and/or said lateral cable (7), so that the barrier-like members (3) are provided at an appropriate interval in the direction of the height of a mountain with their longer dimensions substantially at right angles to the direction of the height of the mountain, said base point (2) is provided on a slope of the mountain opposite the side of the mountain on which said barrier-like members (3) are provided, and said longitudinal cables (1) are fixed to said base point (2) directly or indirectly via said auxiliary cable (5) across a ridge of the mountain and are connected to each other with said lateral cable (7).

A mountain-landslide-preventive structure comprising at least two longitudinal cables (1), a base point (2) constituted by a cable that is wound around a mountain, at least one lateral cable (7), and at least two barrier-like members (3), and further and optionally a mooring cable (4), wherein said longitudinal cables (1) are fixed to said base point (2) and are connected to each other with said lateral cable (7), and said barrier-like members (3) are moored directly by using said longitudinal cables (1) and/or said lateral cable (7) or by using said mooring cable (4) connected to each longitudinal cable (1) and/or said lateral cable (7), so that the barrier-like members (3) are provided at an appropriate interval in the direction of the height of the mountain with their longer dimensions substantially at right angles to the direction of the height of the mountain.