CN209367720U - Steel arch-shelf climbing structure in a kind of tunnel based on jacking apparatus - Google Patents
Steel arch-shelf climbing structure in a kind of tunnel based on jacking apparatus Download PDFInfo
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- CN209367720U CN209367720U CN201822073412.4U CN201822073412U CN209367720U CN 209367720 U CN209367720 U CN 209367720U CN 201822073412 U CN201822073412 U CN 201822073412U CN 209367720 U CN209367720 U CN 209367720U
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- oil
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- steel arch
- jacking apparatus
- hydraulic cylinder
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Abstract
The utility model discloses steel arch-shelf climbing structures in a kind of tunnel based on jacking apparatus, including steel arch-shelf, jacking apparatus, bottom plate, jacking apparatus includes shell, jack component, jacking component includes the hydraulic cylinder set gradually from top to bottom, oil return fuel tank, oil-feed tank, the first check valve is provided in connecting pipe between hydraulic cylinder and oil return fuel tank, second one-way valve is provided in connecting pipe between oil return fuel tank and oil-feed tank, oil inlet oil pump is provided in connecting pipe between hydraulic cylinder and oil-feed tank, the piston rod that one end is placed in outside shell is provided in hydraulic cylinder, connection cross bar is connected on piston rod, it is placed in the raising plate of steel arch-shelf end, it is connected to raising plate and connects the connection vertical bar between cross bar.Jacking apparatus is arranged at the both ends of steel arch-shelf in this programme, and the lifting of steel arch-shelf is realized using jacking apparatus, reduces artificial difficulty of construction, and improves the tightness that steel arch-shelf is bonded with the tunnel surrounding after excavation, improves construction quality.
Description
Technical field
The utility model relates to constructing device fields, and in particular to steel arch-shelf jacking in a kind of tunnel based on jacking apparatus
Structure.
Background technique
Tunnel is one of the important component of highway engineering structure, with the development of Chinese society doctrine market economy,
The implementation of strategy to develop western regions, high-grade highway from coastal area southwester, northwest mountainous terrain extend, vcehicular tunnel building
Scale is also increasing.When setting up steel arch-shelf when constructing tunnel, inside the tunnel surrounding after excavation, steel arch-shelf weight is larger,
Artificial construction is difficult to be bonded steel arch-shelf closely with the tunnel surrounding after excavating.
Utility model content
In order to solve the above-mentioned technical problem the utility model provides steel arch-shelf jacking in a kind of tunnel based on jacking apparatus
Structure.
The utility model is achieved through the following technical solutions:
Steel arch-shelf climbing structure in a kind of tunnel based on jacking apparatus, including steel arch-shelf, it is separately positioned on steel arch-shelf two
The jacking apparatus at end, the bottom plate for being placed in jacking apparatus bottom, the jacking apparatus include shell, the jacking portion of setting inside the shell
Part, the jacking component include the hydraulic cylinder set gradually from top to bottom, oil return fuel tank, oil-feed tank, the hydraulic cylinder and oil return
Being provided in connecting pipe between fuel tank only allows oily the first check valve flowed from hydraulic cylinder to oil return fuel tank end, and described time
It is single that only allow oil to flow from oil return fuel tank to oil-feed tank end second is provided in connecting pipe between fuel tank and oil-feed tank
To valve, it is provided with oil inlet oil pump in the connecting pipe between the hydraulic cylinder and oil-feed tank, is provided with one end in the hydraulic cylinder
The piston rod being placed in outside shell is connected with connection cross bar on the piston rod, the raising plate that is placed in steel arch-shelf end, is connected to top
Connection vertical bar between lift slab and connection cross bar.Jacking apparatus is arranged at the both ends of steel arch-shelf in this programme, utilizes jacking apparatus reality
The lifting of existing steel arch-shelf reduces artificial difficulty of construction, and improves the tightness that steel arch-shelf is bonded with the tunnel surrounding after excavation,
Improve construction quality.Using the setting of bottom plate, jacking apparatus is increased to the stress surface on ground, avoids jacking apparatus anti-in steel arch-shelf
Ground is fallen under active force.The jacking apparatus of this programme uses hydraulic structure, uses hydraulic cylinder, oil return fuel tank, oil-feed tank three
A cabinet, three cabinets are arranged from top to down, i.e., the liquid flow of hydraulic cylinder to oil return fuel tank, oil return fuel tank to oil-feed tank liquid
It flows and automatic back flow can be achieved, it is simple not need additionally pressurized constructions, the structure such as setting pump.It uses the jacking apparatus of this programme,
It is applicable to out-of-flatness ground and the different supporting surface of gradient uses, and stability is high.
Tunnel surrounding can be influenced by excavation and be occurred the surrounding rock body of stress state change, it may occur that unstable change
Shape.In order to improve the stability of strutting system and reliability of steel arch-shelf, the steel arch-shelf is i shaped steel.
Preferably, being provided between the hydraulic cylinder and oil-feed tank to improve reliability when lift structure lifting
The third check valve for only oil being allowed to flow from oil-feed tank to cylinder ends.Third check valve is set, is avoided when lifting acts, liquid
The oil at cylinder pressure end is back to oil-feed tank, so that piston rod be made to move down, influences the stability of lifting.
Preferably, piston rod during moving up, will receive the opposition of steel arch-shelf, which acts on lift
Easily cause unstable after rising on device, therefore outer casing bottom is provided with anti-slip layer, avoids being inclined by after opposition
Tiltedly or topple over situation.
The utility model compared with prior art, has the following advantages and benefits:
1, jacking apparatus is arranged at the both ends of steel arch-shelf in the utility model, and the lifting of steel arch-shelf is realized using jacking apparatus,
Reduce artificial difficulty of construction, and improve the tightness that steel arch-shelf is bonded with the tunnel surrounding after excavation, improves construction quality.
2, the utility model uses the setting of bottom plate, increases jacking apparatus to the stress surface on ground, jacking apparatus is avoided to exist
Ground is fallen under steel arch-shelf reaction force.
3, the jacking apparatus of this programme uses hydraulic structure, uses three hydraulic cylinder, oil return fuel tank, oil-feed tank cabinets,
Three cabinets are arranged from top to down, i.e., the liquid flow of hydraulic cylinder to oil return fuel tank, the liquid flow of oil return fuel tank to oil-feed tank can be real
It is simple not need additionally pressurized constructions, the structure such as setting pump for existing automatic back flow.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the utility model embodiment, constitutes the one of the application
Part does not constitute the restriction to the utility model embodiment.
Fig. 1 is the principles of the present invention block diagram.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached drawing,
The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this
Utility model is not intended to limit the scope of the present invention.
Embodiment 1
Steel arch-shelf climbing structure in a kind of tunnel based on jacking apparatus as shown in Figure 1, including steel arch-shelf 1, set respectively
Set 1 both ends of steel arch-shelf jacking apparatus, be placed in the bottom plate 2 of jacking apparatus bottom, the jacking apparatus includes shell 31, setting
Jacking component inside the shell, the jacking component includes the hydraulic cylinder 32 set gradually from top to bottom, oil return fuel tank 33, oil inlet
Case 34, being provided in the connecting pipe between the hydraulic cylinder 32 and oil return fuel tank 33 only allows oil oily from hydraulic cylinder 32 to oil return
First check valve 35 of 33 end of case flowing, being provided in the connecting pipe between the oil return fuel tank 33 and oil-feed tank 34 only allows
The second one-way valve 36 that oil is flowed from oil return fuel tank 33 to 34 end of oil-feed tank, the connection between the hydraulic cylinder 32 and oil-feed tank 34
It is provided with oil inlet oil pump 37 on pipeline, the piston rod 38 that one end is placed in outside shell 31, the work are provided in the hydraulic cylinder 32
Be connected on stopper rod 38 connection cross bar 4, be placed in 1 end of steel arch-shelf raising plate 6, be connected to raising plate 6 and connection cross bar 4 between
Connection vertical bar 5.In use, closing the first check valve 35, raising plate 6 is placed in below 1 end of steel arch-shelf, opens oil inlet oil pump
37, the oil in oil-feed tank 34 is gradually evacuated in hydraulic cylinder 32 by oil inlet oil pump 37, and oil gradually pushes piston rod 38 in hydraulic cylinder 32
It moves up, so that connection cross bar, connection vertical bar, raising plate be driven to move up, realizes the lifting of steel arch-shelf.Work finish to reply it is original
When position, the first check valve 35, second one-way valve 36 are opened.
Above structure can also be done and be optimized, i.e., the described steel arch-shelf 1 is i shaped steel.
The third for only oil being allowed to flow from oil-feed tank 34 to 32 end of hydraulic cylinder is provided between hydraulic cylinder 32 and oil-feed tank 34
Check valve 39.31 bottom of shell is provided with anti-slip layer 7.
Connection cross bar 4, connection vertical bar 5, raising plate 6 are structure as a whole, in order to avoid steel arch-shelf is detached from raising plate 6, jacking
Plate 6 may be configured as being arranged obliquely close to one end of steel arch-shelf.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (4)
1. steel arch-shelf climbing structure in a kind of tunnel based on jacking apparatus, which is characterized in that including steel arch-shelf (1), respectively set
Set steel arch-shelf (1) both ends jacking apparatus, be placed in the bottom plate (2) of jacking apparatus bottom, the jacking apparatus includes shell
(31), the jacking component of setting inside the shell, the jacking component includes the hydraulic cylinder (32) set gradually from top to bottom, oil return
Fuel tank (33), oil-feed tank (34), being provided in the connecting pipe between the hydraulic cylinder (32) and oil return fuel tank (33) only allows
Oil holds the first check valve (35) of flowing, the oil return fuel tank (33) and oil-feed tank from hydraulic cylinder (32) to oil return fuel tank (33)
(34) it is unidirectional that only allow oil to hold flowing from oil return fuel tank (33) to oil-feed tank (34) second is provided in the connecting pipe between
Valve (36) is provided with oil inlet oil pump (37) in the connecting pipe between the hydraulic cylinder (32) and oil-feed tank (34), described hydraulic
One end is provided in cylinder (32) and is placed in the piston rod (38) of shell (31) outside, is connected with connection cross bar on the piston rod (38)
(4), it is placed in the raising plate (6) of steel arch-shelf (1) end, is connected to raising plate (6) and the connection vertical bar that connect between cross bar (4)
(5).
2. steel arch-shelf climbing structure in a kind of tunnel based on jacking apparatus according to claim 1, which is characterized in that institute
Stating steel arch-shelf (1) is i shaped steel.
3. steel arch-shelf climbing structure in a kind of tunnel based on jacking apparatus according to claim 1, which is characterized in that institute
It states to be provided between hydraulic cylinder (32) and oil-feed tank (34) and only allows the of oil end flowing from oil-feed tank (34) to hydraulic cylinder (32)
Three check valves (39).
4. steel arch-shelf climbing structure in a kind of tunnel based on jacking apparatus according to claim 3, which is characterized in that institute
It states shell (31) bottom and is provided with anti-slip layer (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822073412.4U CN209367720U (en) | 2018-12-11 | 2018-12-11 | Steel arch-shelf climbing structure in a kind of tunnel based on jacking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822073412.4U CN209367720U (en) | 2018-12-11 | 2018-12-11 | Steel arch-shelf climbing structure in a kind of tunnel based on jacking apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN209367720U true CN209367720U (en) | 2019-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822073412.4U Active CN209367720U (en) | 2018-12-11 | 2018-12-11 | Steel arch-shelf climbing structure in a kind of tunnel based on jacking apparatus |
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| CN (1) | CN209367720U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109928316A (en) * | 2018-12-11 | 2019-06-25 | 成都大学 | Steel arch-shelf climbing structure in a kind of tunnel based on jacking apparatus |
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2018
- 2018-12-11 CN CN201822073412.4U patent/CN209367720U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109928316A (en) * | 2018-12-11 | 2019-06-25 | 成都大学 | Steel arch-shelf climbing structure in a kind of tunnel based on jacking apparatus |
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