CN202882948U - Quantitative pressure yielding joint applicable to underground construction supporting arch frame - Google Patents
Quantitative pressure yielding joint applicable to underground construction supporting arch frame Download PDFInfo
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- CN202882948U CN202882948U CN 201220535723 CN201220535723U CN202882948U CN 202882948 U CN202882948 U CN 202882948U CN 201220535723 CN201220535723 CN 201220535723 CN 201220535723 U CN201220535723 U CN 201220535723U CN 202882948 U CN202882948 U CN 202882948U
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- arch frame
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Abstract
The utility model relates to a quantitative pressure yielding joint applicable for an underground construction supporting arch frame. The quantitative pressure yielding joint applicable to the underground construction supporting arch frame comprises an arch frame, a quantitative pressure yielding device, a sleeve pipe and a baffle ring. The entire outlook of the quantitative pressure yielding joint applicable to the underground construction supporting arch frame is in a cylindrical shape or an arc shape and the cross section of the quantitative pressure yielding joint applicable to the underground construction supporting arch frame is in a circular shape. The quantitative pressure yielding joint is installed on a spandrel portion, a vault portion, a roadway lateral portion or a baseplate portion of the arch frame. The quantitative pressure yielding joint applicable to the underground construction supporting arch frame is simple in structure, convenient and flexible to install, the quantity and opportunity of the pressure yielding are controllable, and a plurality of pressure yielding patterns can be chosen. The quantitative pressure yielding joint applicable to the underground construction supporting arch frame is wide in application, the quantitative pressure yielding joint applicable to the underground construction supporting arch frame can be applied to the supporting arch frames with various shapes, sizes, cross section forms and radians, such as a mining U-shaped steel arch frame and a round concrete-filled steel tube arch frame with various cross sections and sizes. The quantitative pressure yielding joint applicable for the underground construction supporting arch frame can be used for connection of the underground construction supporting arch frames, especially suitable for the connection of the deep portion roadway supporting arch frames.
Description
Technical field
The utility model relate to a kind of for the underground engineering support bow member quantitatively allow the pressure node, relate in particular to the underground construction supportings such as a kind of difficult supporting chamber for complex conditions such as deep or soft rocks, tunnel, tunnel and allow the pressure node with bow member.
Background technology
The interactional achievement in research of roadway support and country rock proves, supporting intensity is the key factor of control roadway surrounding rock drastic deformation, when only having supporting intensity greater than 0.3MPa, could effectively control the drastic deformation in tunnel, adapt to the effect of leading and lateral-supporting pressure.For the complicated difficult supported laneway, only rely on the support capacity of single anchor pole or support itself, be difficult to the drastic deformation of control country rock, must give full play to the supporting capacity of roadway surrounding rock self.Therefore, for the complicated difficult supported laneway of large deformation, support system must have yielding property.In general, deformation of the surrounding rock in tunnel comprises a part of uncontrollable distortion, and support system must have the compressive strain of allowing function to allow uncontrollable distortion.Yet thisly allow to press must be that control allows pressure, namely support system slowly allows pressure under certain supporting intensity, rather than freely allows pressure.
In the past in the engineering practice of decades-long, people are creationary to have made much to have and has allowed support material and the supporting and protection structure of compression functions, and original rigid protection structure is improved, and increases the contractibility of supporting.At present, both at home and abroad in the Soft Rock Engineering application of yield supporting technology mainly contain following several form: the compound yield supporting design of the excavation that distributes, the supporting of arch body allow swaging formula, U-shaped steel contractibility yield supporting, bolt-spary supports, pressure-relieving achor bar (rope) supporting.The laminated structure that allows that is used for now underground engineering support has much, but the device of pressing that quantitatively allows that can realize the supporting bow member there is not yet report.
The utility model content
Task of the present utility model provide a kind of be applicable to the underground engineering support bow member simple in structure, easy for installation, allow pressure opportunity and allow the artificial controlled pressure node that quantitatively allows of pressure amount, be particularly useful for the difficult supportings such as various deeps, soft rock the underground constructions such as tunnel, tunnel and chamber group the bow member supporting allow the realization of pressing node.
The purpose of this utility model is achieved through the following technical solutions:
What be applicable to the underground engineering support bow member quantitatively allows the pressure node, comprises bow member, quantitatively allows pressure device, sleeve pipe and baffle ring, quantitatively allows pressure device be installed between the termination of two joint bow members, and two ends connects with sleeve pipe, and baffle ring is positioned at the downside of sleeve pipe.
Described quantitatively allowing press-fits the I-shape construction that is set to two joint both sides indents.
The described material of pressure device that quantitatively allows is metal material, perhaps adopts macromolecular material.
The described pressure device that quantitatively allows processes according to designing requirement, when bow member is stressed when reaching certain limit, quantitatively allow pressure device realize allowing pressure by the distortion of self, have and specifically allow pressure point and allow the pressure amount, also can be processed into as required and have difference and allow pressure point and allow the pressure device that allows of pressure amount, selected as required during use.
The described pressure device that quantitatively allows has specific load-displacement curve form when pressurized, distortion continues constant-resistance that load remains unchanged and allows the swaging formula when acquiring a certain degree for pressure as required, or the resistance enhancement mode that slowly increases synchronously of distortion and load allows the swaging formula, or allows stage by stage the pressure various ways.
Described sleeve pipe global shape is arc or vertical cyclindrical shape.
Described sleeve pipe shape of cross section is circular or square.
The interior sky of described sleeve pipe can just be put into the bow member termination and quantitatively allow pressure device.
Can slide into the baffle ring position at most during described sleeve pipe down sliding.
Described sleeve pipe has rational length, and is fixed to suitable position by baffle ring, guarantees that the described pressure node that quantitatively allows has enough bending rigidities.
Described quantitatively allowing presses the node overall appearance to be shaped as arc or vertical cyclindrical shape, and cross sectional shape is circular.
Described quantitatively allowing presses node installation at spandrel position, arch crown part, side position, lane or the base plate position of bow member, or quantitatively allows the node location of pressing according to specifically being installed in needs.
Can be found out by the technical scheme that above-mentioned the utility model provides, described be applicable to the underground engineering support bow member quantitatively allow the pressure node, has following remarkable advantage: 1. simple in structure, easy for installation flexible, only by quantitatively allowing pressure device, sleeve pipe and 3 simple main members of baffle ring form, assembling simple and flexible, easily operation; 2. allow pressure opportunity and make the pressure amount controlled, it is optional to have the multiple die pressing type that allows, can according to the needs of concrete engineering select to have difference allow die pressing type, allow pressure point and allow the pressure amount quantitatively allow pressure device, allow die pressing type have constant-resistance to allow pressures, resistance enhancement mode allow and press and allow stage by stage pressure multiple; 3. applicable wide, supporting bow member for various difformities, size, cross-sectional form, radian, all can select this quantitatively allow the pressure node such as circular steel tube concrete bow member of mine U-shaped steel arch frame, various section form and size etc., adjust its processing dimension and get final product.
What this was applicable to the underground engineering support bow member quantitatively allows the pressure node, be applicable to the underground constructions such as various tunnels, tunnel and chamber group the bow member supporting allow the realization of pressing node, as the concrete filled steel tube bow member of mine U-shaped steel arch frame, various section forms etc. all can select this quantitatively allow press that node realizes bow member quantitatively allow pressure.
Description of drawings
Fig. 1 is that the utility model is applicable to the structural representation that quantitatively allowing of underground engineering support bow member pressed the embodiment one of node;
Fig. 2 is that the utility model is applicable to the structural representation that quantitatively allowing of underground engineering support bow member pressed the embodiment two of node;
Fig. 3 is the A-A sectional drawing among Fig. 1, Fig. 2, for quantitatively allowing the schematic diagram of embodiment one of the cross section of pressing node;
Fig. 4 is the A-A sectional drawing among Fig. 1, Fig. 2, for quantitatively allowing the schematic diagram of embodiment two of the cross section of pressing node;
Fig. 5 is that the pressure device that quantitatively allows described in the utility model allows the load-displacement curve schematic diagram of pressure process;
Fig. 6 is that the utility model quantitatively allows the schematic diagram of pressing node installation site on bow member.
Marginal data: 1-bow member; 2-quantitatively allow pressure device; 3-sleeve pipe; 4-baffle ring; 5-quantitatively allow the pressure node.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
With reference to accompanying drawing, the better specific embodiment of the utility model is:
As shown in Figure 1, the pressure node that quantitatively allows of the present utility model by bow member 1, quantitatively allow pressure device 2, sleeve pipe 3 and baffle ring 4 consist of, quantitatively allows pressure device 2 be installed between the termination of two joint bow members 1, and two ends connects with sleeve pipe 3.First described sleeve pipe 3 is slid into bow member 1 that side without baffle ring 3, vacates and quantitatively allow the installing space of pressure device 2, then install and quantitatively allow pressure device 2, after sleeve pipe 3 is slided down to the position of baffle ring 4, namely finished allowing the installation of pressing node.
Reach when setting limit when bow member 1 is stressed, quantitatively allow pressure device 2 begin to produce obvious distortion, move to sleeve pipe 3 interior extruding at the continuous two ends of bow member 1, realizes the pressure that allows of bow member.
As depicted in figs. 1 and 2, described quantitatively allowing presses node overall appearance shape to be generally vertical cyclindrical shape (embodiment illustrated in fig. 1) or arc (embodiment illustrated in fig. 2 two), and be consistent with bow member 1 Nodes shape, also can be designed to as required difformity.
As shown in Figure 3 and Figure 4, described quantitatively allowing presses the node cross sectional shape to be generally circle (cross section embodiment one shown in Figure 3) or square (cross section embodiment two shown in Figure 4), also can be designed to as required difformity.
Such as Fig. 1 ~ shown in Figure 4, the described pressure device that quantitatively allows is generally the I-shaped of two joint both sides indents, and shape of cross section is generally circle, also can be designed to as required difformity.
As shown in Figure 5, the described pressure device that quantitatively allows has specific load-displacement curve form when pressurized, can be that distortion continues and constant-resistance that load remains unchanged allows swaging formula (curve B among the figure) when pressure acquires a certain degree as required, or the resistance enhancement mode that slowly increases synchronously of distortion and load allows swaging formula (curve C among the figure), or allows stage by stage the various ways such as pressure (curve D among the figure).
As shown in Figure 6, described quantitatively allowing presses node 5 generally to be installed in spandrel position (E of position shown in the figure), arch crown part (F of position shown in the figure), side position (G of position shown in the figure), lane or position, arch, the end (H of position shown in the figure) of bow member, or quantitatively allows the node location of pressing according to specifically being installed in needs.
The above; it only is the better specific embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.
Claims (5)
1. what be applicable to the underground engineering support bow member quantitatively allows the pressure node, comprise bow member, quantitatively allow pressure device, sleeve pipe and baffle ring, it is characterized in that, described quantitatively allowing between the termination that pressure device is installed in two joint bow members, the termination of two joint bow members connects with sleeve pipe, and baffle ring is positioned at the downside of sleeve pipe.
According to claim 1 described be applicable to the underground engineering support bow member quantitatively allow the pressure node, it is characterized in that described quantitatively allowing press-fits the I-shape construction that is set to two joint both sides indents;
The described material of pressure device that quantitatively allows is metal material, perhaps is macromolecular material.
According to claim 1 be applicable to the underground engineering support bow member quantitatively allow the pressure node, it is characterized in that described sleeve pipe global shape is consistent with the bow member global shape, be arc or vertical cyclindrical shape;
Described sleeve pipe shape of cross section is consistent with the bow member shape, for circular or square.
According to claim 1 described be applicable to the underground engineering support bow member quantitatively allow the pressure node, it is characterized in that described quantitatively allowing presses the node overall appearance to be shaped as arc or vertical cyclindrical shape, cross sectional shape be circle.
According to claim 1 described be applicable to the underground engineering support bow member quantitatively allow the pressure node, it is characterized in that described quantitatively allowing presses node installation at spandrel position, arch crown part, side position, lane or the base plate position of bow member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220535723 CN202882948U (en) | 2012-10-18 | 2012-10-18 | Quantitative pressure yielding joint applicable to underground construction supporting arch frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220535723 CN202882948U (en) | 2012-10-18 | 2012-10-18 | Quantitative pressure yielding joint applicable to underground construction supporting arch frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202882948U true CN202882948U (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220535723 Expired - Fee Related CN202882948U (en) | 2012-10-18 | 2012-10-18 | Quantitative pressure yielding joint applicable to underground construction supporting arch frame |
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| Country | Link |
|---|---|
| CN (1) | CN202882948U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852534A (en) * | 2012-10-18 | 2013-01-02 | 山东大学 | Quantitative yielding node applicable to underground engineering support lagging jack |
| CN111648792A (en) * | 2020-04-24 | 2020-09-11 | 高军 | Little clear distance overlaps tunnel supporting construction |
-
2012
- 2012-10-18 CN CN 201220535723 patent/CN202882948U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852534A (en) * | 2012-10-18 | 2013-01-02 | 山东大学 | Quantitative yielding node applicable to underground engineering support lagging jack |
| CN102852534B (en) * | 2012-10-18 | 2015-04-15 | 山东大学 | Quantitative yielding node applicable to underground engineering support lagging jack |
| CN111648792A (en) * | 2020-04-24 | 2020-09-11 | 高军 | Little clear distance overlaps tunnel supporting construction |
| CN111648792B (en) * | 2020-04-24 | 2022-03-04 | 高军 | Little clear distance overlaps tunnel supporting construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20161018 |