Abstract:
PROBLEM TO BE SOLVED: To provide an anchor support in the ground anchor construction method securely realizing anchorage of the anchor body into an anchor hole. SOLUTION: The anchor support is constituted of an anchorage body 7 positioning an anchor body 3 formed of a grout injected in an anchor hole 2 formed from an unstable ground settled in an anchorage objection ground to the anchorage objection ground and the anchor support body 1 connecting the anchor body 3 formed of the grout injected in the anchor hole 2 and the ground surface of the inlet side of the anchor hole 2 in the anchor body 3 and a connection body 4 drawing the anchorage body 7 to the inlet side of the anchor hole 2. The anchorage body 7 is constituted by axially superposing a plurality of wedge-shaped diametrically widened bodies 13 facing the ground surface, after formation of the anchor body 3, by moving the anchor body to the inlet side of the anchor hole 2, the anchor body 3 is widened so as to be pressed into the anchor hole 2 and the anchor body 3 is anchored in the anchor hole 2. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a method and an instrument for testing the load capacity of a ground anchor for being easily assembled and of forming the compact instrument. SOLUTION: The instrument for testing the load capacity of the ground anchor 3 including an engaging member 2 engaging the side of the anchor head 3b of the ground anchor 3, which is exposed from the surface of the ground, and a force application means 12 for applying a force to the engaging member 2, performs the load capacity test of the ground anchor 3 by applying the force from the force application means 12 to the engaging member 2 so that a load in the pull out direction acts on the ground anchor 3, wherein the engaging member 2 is a hook for freely engaging or disengaging the side of the anchor head 3b, and an amplifying mechanism is provided for amplifying and transmitting the force from the force application means 12 to the engaging member 2. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a debris fall preventing method which is carried out by using a debris fall preventive net easily formed of ring elements, for covering surfaces of stones, such that the entire body of the debris fall preventive net covers a plurality of stones forming an aggregate in a manner adhering to the stones, to thereby enhance the rolling inhibiting force of the stones, and to provide the debris fall preventive net per se. SOLUTION: The debris fall preventing method is carried out by using the debris fall preventive net 2 for covering stones, which is formed of the plurality of elements 1 each obtained by annularly connecting both ends of a wire rope 4 together by means of a disengageable end connector 3, and then intersecting the elements each other. Specifically the method is implemented by anchoring the elements 1 of the debris fall preventive net 2 to the stones to prevent rolling of the same. The debris fall preventive net 2 is formed by mutually intersecting the elements 1 which are each obtained by annularly connecting both the ends of the wire rope 4 in a disengageable manner by means of the end connector 3. COPYRIGHT: (C)2005,JPO&NCIPI