Abstract:
PURPOSE: A horizontal geophone with automatic alignment correction and noise control functions, a borehole apparatus having horizontal geophone, and a device for measuring ground-bore vibration are provided to prevent noise on a sensing signal by preventing the unnecessary movement due to vibration. CONSTITUTION: A horizontal geophone with automatic alignment correction and noise control functions comprises a horizontal rate detection sensor(41), a horizontal direction preservation structure(42) and a balance weight(43). The horizontal rate detection sensor senses the horizontal component of the ground vibration. The horizontal direction preservation structure has a pair of hinge sections(422). The horizontal direction preservation structure rotates the horizontal rate detection sensor with the hinge part. The balance weight is installed in the horizontal rate detection sensor. The balance weight maintains the measurement direction of the horizontal rate detection sensor.
Abstract:
PURPOSE: A reinforcing frame for improving the compaction rate and a retaining wall having a backfill reinforcing structure using the same are provided to improve the structural stability of an embanking area by strengthening the restraint force with the earthwork part. CONSTITUTION: A retaining wall having a backfill reinforcing structure using a reinforcing frame(30) for improving the compaction rate is composed of a horizontal part(31) and a vertical part(32). The horizontal part is installed to be parallel to the ground surface. The vertical part is upwardly connected from the horizontal part. The reinforcing frame supports a filler. The filler is arranged in the embanking area built at the back side of the stiff structure. An anchor portion(33) is formed in the front end of the horizontal part. The anchor portion is bent downwardly. The vertical part inclines toward the horizontal part and makes an angle between the vertical part and the horizontal part as the acute angle.
Abstract:
굴착터널외주면의일부를절삭하고굴착터널내부에는선대구경천공을실시하여자유면을확보한상태에서내부발파를시행하며, 이때, 상기굴착터널외주면의부분절삭은보호물건이있는방향으로와이어쏘또는워터젯과같은방법을이용하여일정한각도만큼선절삭을실시함으로써발파진동을저감시킬수 있고, 또한, 와이어쏘또는워터젯을이용함으로써정밀하게시공할수 있고, 터널시공시발생하는소음과진동, 그리고분진을저감시킴으로써친환경적이고안전하게터널을시공할수 있는, 발파진동저감을위해터널외주면일부를절삭하는터널굴착공법이제공된다.
Abstract:
굴착터널외주면의일부를절삭하고굴착터널내부에는선대구경천공을실시하여자유면을확보한상태에서내부발파를시행하며, 이때, 상기굴착터널외주면의부분절삭은보호물건이있는방향으로와이어쏘또는워터젯과같은방법을이용하여일정한각도만큼선절삭을실시함으로써발파진동을저감시킬수 있고, 또한, 와이어쏘또는워터젯을이용함으로써정밀하게시공할수 있고, 터널시공시발생하는소음과진동, 그리고분진을저감시킴으로써친환경적이고안전하게터널을시공할수 있는, 발파진동저감을위해터널외주면일부를절삭하는터널굴착공법이제공된다.
Abstract:
The present invention relates to a device to tow a train in a steep grade section of a railway installed around a main track in a steep grade section of a railway having a steep upward slope to tow a train while moving in a state of being coupled to the train when the train enters the steep grade section in order to enable the train to smoothly pass the steep grade section. The device to tow a train in a steep grade section of a railway includes: a first auxiliary track (1a) and a second auxiliary track (1b) installed in an upward steep grade section; a hinge mounting stand (2) and a backward mounting stand (4) moving in the steep grade section along the first auxiliary track (1a); a forward mounting stand (5) moving in the steep grade section along the second auxiliary track (1b); and a connection beam (3). In a tow beginning point, each of the hinge mounting stand (2), the backward mounting stand (4), and the forward mounting stand (4) tows the train (200) while moving in the upward steep grade section along the first auxiliary track (1a) and the second auxiliary track (1b) while the connection beam (3) is arranged by crossing the main track (100) to be coupled to the train (200). In a tow ending point, after the train (200) is passed by rotating the connection beam (3), the hinge mounting stand (2), the backward mounting stand (4), the forward mounting stand (4), and the connection beam (3) return to the tow beginning point to tow a newly-entering train.
Abstract:
본 발명은 겹치기 이음을 이용하여 서로 결합하는 해중터널블록을 구비하는 해중터널을 제공한다. 이를 위해 본 발명은 제1해중터널블록, 상기 제1해중터널블록과 인접하게 연결되는 제2해중터널블록 및 상기 제1해중터널블록과 상기 제2해중터널블록 사이에 형성되는 방수부를 포함하고, 상기 제1해중터널블록과 상기 제2해중터널블록은 파이프 형상을 갖는 제1외판, 상기 제1외판 내부에 형성되는 내판 및 상기 제1외판과 상기 내판 사이에 채워지는 충진재를 구비하고, 상기 제1외판 끝단에는 굴곡부와 상기 제1외판 보다 직경이 큰 제2외판이 연장 형성되는 것을 특징으로 하는 해중터널을 개시한다.
Abstract:
PURPOSE: A submerged floating tunnel is provided to obtain water tight and minimize welding defects as costs for connecting submerged tunnel blocks are drastically reduced due to the work performed inside the tunnel. CONSTITUTION: A submerged floating tunnel includes a first submerged tunnel block (100), a second submerged tunnel block (200), and a waterproofing unit (300). The first and second submerged tunnel blocks include a first outer plate (210), an inner plate, and a filler. A curvature unit and a second outer plate (112) are extended from the end of the first outer plate. The second outer plate of the first submerged tunnel block is connected to the first outer plate of the second submerged tunnel block with a lap joint method.