Anchor pipe with semi-active variable damping control device
A control device and variable damping technology, applied in the installation of bolts, sheet pile walls, mining equipment, etc., can solve problems such as damage and large deformation of bolt and shotcrete support structures, and achieve improved seismic performance, less space required, and better performance. stable effect
Active Publication Date: 2015-05-20
LANZHOU UNIVERSITY OF TECHNOLOGY
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Problems solved by technology
[0003] The purpose of the present invention is to provide an anchor pipe with a semi-active variable damping control device, which solves the problem of excessive deformation and even destruction of the anchor-spray support structure caused by earthquakes, and improves the shock resistance of the anchor-spray support structure and security
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[0007] like figure 2 , image 3 , Figure 4 As shown, the present invention is an anchor pipe with a semi-active variable damping control device. A hoop 15a, a second hoop 15b and bolts 23b connect the hollow anchor pipe 6 with a variable damping control device; wherein the variable damping control device consists of a hydraulic cylinder 14 with a first hoop 15a, a one-way double-out rod piston 16 , oil liquid 18, bypass pipeline 19, electro-hydraulic servo valve 20, nut 22 with bolt 23a and shield 21; controller 1 is a set with A / D and D / A data acquisition and conversion The PC of the board, the PC that is installed with the control algorithm and the driving software of the electro-hydraulic servo valve 20 can control the on / off state of the electro-hydraulic servo valve 20; the shape of the hydraulic cylinder 14 is cylindrical; The piston of piston 16 is sleeved on the inner tube of hydraulic cylinder 14, and the one-way double-exit rod with screw thread 17 in the front ...
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The invention discloses an anchor pipe with a semi-active variable damping control device. The anchor pipe is structurally formed by a controller (1), a sensor (2), a communication line (3), a supporting and protective structure (4), an anchorage device (5), an anchoring spring (12), a first hoop (15a), a second hoop (15b), bolts (23b), a hollow anchoring pipe (6) and a variable damping control device, wherein the hollow anchoring pipe (6) is connected with the variable damping control device through the hoop (15a), the hoop (15b) and the bolts (23b). The variable damping control device is formed by a hydraulic cylinder (14) with the hoop (15a), a one-way double-outlet-rod piston (16), oil liquid (18), a bypass pipe (19), an electro-hydraulic servo valve (20), nuts (22) with bolts (23a) and a protective cover (21). According to the anchor pipe with the semi-active variable damping control device, the inextricable problem that a current anchoring and shotcreting supporting structure system is overlarge in deformation under the earthquake effect and even damaged is solved, and the earthquake resistance performance of an anchoring and shotcreting supporting structure and the safe stability of a supporting and protective body are improved.
Description
technical field [0001] The invention relates to an anchor pipe with a semi-active variable damping control device, which belongs to the field of vibration control of anchor-spray support structures, and is especially suitable for permanent support projects such as tunnels, mine roadways and high and steep slopes. Background technique [0002] Earthquakes are obviously random and sudden, and people cannot predict them accurately. For engineering structures, anti-seismic design ideas are mainly used to prevent and resist the damage caused by earthquakes. The traditional anti-seismic design mainly relies on enhancing the performance of the structure itself to resist external disturbances. In this design, the structure is in a passive position to resist earthquakes, which is a negative design. With the development of the economy, people put forward more stringent requirements on the safety and applicability of buildings. The limitations of traditional seismic design methods are...
Claims
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IPC IPC(8): E02D5/76E21D21/00
Inventor 董建华王永胜董旭光王冰霞吴意谦刘彦东张媛代涛袁方龙
Owner LANZHOU UNIVERSITY OF TECHNOLOGY