摘要:
PURPOSE: A device for inserting a drain material is provided to reduce costs because an additional anchor shoe for fixing a drain material is not required. CONSTITUTION: A device for inserting a drain material is composed as follows. The top end of a jig frame(100) is welded in the bottom end of a case(300). The inside the jig frame is composed of a rear frame and a front frame. The rear frame is in contact with one surface of a drain material. The front frame presses the other surface of the drain material to the rear frame.
摘要:
PURPOSE: A manhole cover having a locking and canceling function is provided to be locked and canceled by installing a lock at the circumference of a manhole cover. CONSTITUTION: A manhole cover having a locking and canceling function comprises a lock(30). The lock is composed of a body(31), a locking cap(32), a rotation control part(35) and an open cam(33). A shaft is inserted in the hole of the manhole cover. A locking cap is selectively hanged on a mounting projection(21) of manhole support according to the rotation position of a shaft. The open cam is positioned close to the top of the protrusion of a manhole support according to the rotation position of a shaft. The rotation control part is formed on the top of the body.
摘要:
PURPOSE: An earthquake-proof wall structure is provided to resist against a longitudinal load, such as an earthquake, using a buffering action. CONSTITUTION: An earthquake-proof wall structure comprises multiple surface materials(100), longitudinal reinforcing materials(200), horizontal reinforcing materials(300), and elasticity supply units(400). The surface materials are installed on the front side of rear soil. The rear ends of the longitudinal reinforcing materials are supported by the rear soil or anchors so that the longitudinal reinforcing materials can support the rear of the surface materials. The horizontal reinforcing materials are integrally installed in the longitudinal reinforcing materials. The elasticity supply units are formed in the horizontal reinforcing materials, and supply elasticity to the horizontal reinforcing materials and the longitudinal reinforcing materials.
摘要:
PURPOSE: A removable anchor is provided to let a steel wire separate from a wedge at the same time as cutting the steel wire, thus facilitating the removal. CONSTITUTION: A removable anchor comprises a steel wire(10) which is fixed on the ground on one end and anchored underground on the other, a wedge(12) which holds the other end of the steel wire, a traction member(15) which is coupled with the wedge on one end and has a guide hole on the other, a casing(18) which is connected to a wedge block on one end and keeps the steel wire, the wedge and the traction member therein, and a separating member(16) which is partly contained in the traction member and inserted between the wedge and the steel wire when the wedge and the traction member move.
摘要:
PURPOSE: A ground retaining structure for construction work is provided to reduce material costs and to prevent a lagging from being destroyed by ground pressure. CONSTITUTION: A ground retaining structure for construction work comprises an inner ground retaining wall(10), a lower finishing iron frame(20), an outer ground retaining wall(30), and an upper finishing iron frame(40). The inner ground retaining wall is installed in the inner front section of an H-beam. The lower finishing iron frame is fixed to the bottom end of the inner earth retaining wall. The outer ground retaining wall is located in the rear part of the inner earth retaining wall, and fixed on the top of the inner ground retaining wall. The upper finishing iron frame is fixed to the top of the outer ground retaining wall.
摘要:
PURPOSE: A concrete culvert having joint structure of concrete culvert units is provided to prevent a gap between culvert units or junction cracking by bending tension. CONSTITUTION: A joining structure of a concrete culvert unit is as follows. A folding eye bolt(11) is installed in first culvert unit(10). A ring type eye bolt(21) is installed in a second culvert unit(20). The faced folding eye bolt and the ring type eye bolt are joined each other. A filler groove(30) and a shear key groove(32) are filled by injecting a filler, and then the folding eye bolt and the ring type eye bolt are buried within the filler.
摘要:
PURPOSE: A manhole impurity hiding automatic opening/closing apparatus is provided to keep a manhole clean by blocking the bad smell and hiding impurities and to facilitate the inflow of the rainwater. CONSTITUTION: A manhole impurity hiding automatic opening/closing apparatus is composed of a housing(3), an impurity cover(6), and an automatic opening/closing device(7). A forward and backward incline and a rightward and leftward incline are formed in the upper end of the housing. The impurity cover hides impurities putted into a manhole. The impurity cover is folded by a spring. The automatic opening/closing device is mounted on the lower end of the impurity cover. The automatic opening/closing device is folded by springs of both ends of the housing and a hinge unit.
摘要:
PURPOSE: A multipurpose front end fixing device for a permanent anchor is provided to improve safety and quality of the anchor construction and to rapidly fix the permanent anchor. CONSTITUTION: A multipurpose front end fixing device for a permanent anchor is composed of a front end fixing anchor head(100), plural wedge type expansion members(200), and an elastic fixing device(300). The front end fixing anchor head is inserted into an anchor hole. A cone-shaped portion(110) having a taper surface(112) is formed in the front end fixing anchor head. A screw hole is formed in the front end fixing anchor head. A connecting piece(210) is formed in the wedge type expansion member. The wedge type expansion member is positioned in the circumference of the taper surface of the corn-shaped part of the front end fixing anchor head. The wedge type expansion member is fixed to the outer ground in the axis line of the anchor hole. The elastic fixing device is combined to a screw hole of the front end fixing anchor head. The elastic fixing device is combined to a connecting piece of the wedge type expansion member. The elastic fixing device has a compressed elastic member(330) for applying the elastic force to plural wedge type expansion members.
摘要:
PURPOSE: A ground anchor for removing a tensile member is provided to cancel the tensile member by pulling out easily by fixing a wedge using a protrusion of an inner circumference of a housing. CONSTITUTION: A ground anchor for removing a tensile member comprises a housing(10), a wedge, and a spring. A space part is formed inside the housing. An opening is formed at the front of the housing. A tensile member(1) is inserted into the opening. A taper part is formed inside the space part. The wedge includes a support block, a wedge piece, and an elastic member. A protrusion is formed at a rim of the support block. A wedge piece is combined in the plural number to have the seesaw motion at the protrusion of the support block. The elastic member is connected to the boundary surface of the wedge piece. The elastic member pressurizes the wedge piece to make the end parts of wedge piece open. The spring is equipped inside the space part. The spring pressurizes the wedge to the front of the housing.
摘要:
PURPOSE: A wire holding device of a removable ground anchor is provided to prevent the wire from being dropped in a tension initial point. CONSTITUTION: A casing has a cylindrical accommodation space with an opened one side and a vertical hem of a wire(23). A female bolt(53a) is located on the wire. An adjusting bolt is engaged in the female bolt inside the casing and is connected to the vertical hem of the wire. The location of the adjusting bolt is adjusted according to an interlocking degree of the female bolt. A coupling(55) connects a wedge assembly and the adjusting bolt.