CN103174710B - Grille frame supporting-failure-resistant connector and use thereof - Google Patents
Grille frame supporting-failure-resistant connector and use thereof Download PDFInfo
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- CN103174710B CN103174710B CN201310084012.2A CN201310084012A CN103174710B CN 103174710 B CN103174710 B CN 103174710B CN 201310084012 A CN201310084012 A CN 201310084012A CN 103174710 B CN103174710 B CN 103174710B
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- grille frame
- steel bar
- reinforcing bar
- grid
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 35
- 239000010959 steel Substances 0.000 claims abstract description 35
- 210000001503 joint Anatomy 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims 8
- 241000826860 Trapezium Species 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract description 3
- 239000011435 rock Substances 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 1
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- Mutual Connection Of Rods And Tubes (AREA)
- Connection Of Plates (AREA)
Abstract
本发明公开了一种格栅支架防支护失效连接件及其用途，它是加工有楔形孔洞的金属件，楔形孔洞的横截面为长圆形，纵断面形状为一个直角梯形，要求梯形斜边的斜度为1:(38-40),孔洞梯形的上底尺寸小于两倍格栅支架钢筋的直径、且大于一倍格栅支架钢筋的直径，孔洞梯形2/3高度处的宽度等于两倍格栅支架钢筋的直径，从而保证该连接件在穿过一根钢筋后另一根钢筋仅插入2/3深度。组成支架时，通过两个楔形连接件将格栅支架的上下两根钢筋对接头搭接在一起，当钢筋所受的轴向力达到一定值时使支架的上下两根钢筋移动都受到限制，迫使格栅支架实现缩动，保证巷道或隧道处于良好的状态。
The invention discloses a grid bracket support failure prevention connector and its application. It is a metal part processed with a wedge-shaped hole. The slope of the side is 1: (38-40), the size of the upper bottom of the hole trapezoid is less than twice the diameter of the grid support steel bar, and greater than one time the diameter of the grid support steel bar, and the width of the hole trapezoid at 2/3 height is equal to Twice the diameter of the steel bar of the grid support, so as to ensure that the connecting piece is inserted only 2/3 of the depth of the other steel bar after passing through one steel bar. When the bracket is formed, the upper and lower steel bars of the grid bracket are lapped together through two wedge-shaped connectors. When the axial force on the steel bar reaches a certain value, the movement of the upper and lower steel bars of the bracket is restricted. Force the grid support to shrink to ensure that the roadway or tunnel is in good condition.
Description
技术领域technical field
本发明涉及矿山巷道和各类隧道工程的支护用的格栅支架，尤其涉及防止格栅支架支护失效的技术。The invention relates to a grid bracket used for support of mine roadways and various tunnel projects, in particular to a technology for preventing grid bracket support from failure.
背景技术Background technique
格栅支架是矿山巷道和各类隧道工程的支护形式之一。在井下使用时，格栅支架是由一节一节格栅式钢筋架连接组成，连接时将对应的钢筋头搭接并用连接件紧固。所以连接件是支架的主要部件。由于目前的连接件结构所限，当围岩压力或变形较大时，支架容易出现屈曲等失稳性破坏，而导致支架失效，使巷道或隧道处于危险的状态。因此，怎么防止格栅支架支护失效是目前亟需解决的技术问题。Grid support is one of the supporting forms of mine roadway and various tunnel engineering. When used in the underground, the grid support is composed of a section of a grid-type steel frame connection. When connecting, the corresponding steel bar heads are overlapped and fastened with connectors. So the connector is the main part of the bracket. Due to the limitations of the current connector structure, when the pressure or deformation of the surrounding rock is large, the bracket is prone to buckling and other instability damage, which leads to failure of the bracket and puts the roadway or tunnel in a dangerous state. Therefore, how to prevent grid support support from failure is a technical problem that needs to be solved urgently at present.
发明内容Contents of the invention
为了克服格栅支架支护矿山巷道和各类隧道工程时容易失效的问题，本发明提供一种格栅支架防支护失效连接件。In order to overcome the problem that grid brackets are prone to failure when supporting mine roadways and various tunnel projects, the invention provides a grid bracket support failure prevention connector.
本发明同时提供这种连接件的用途。The present invention also provides the use of such a connecting piece.
为达到上述目的，本发明采取的技术方案是：For achieving the above object, the technical scheme that the present invention takes is:
一种格栅支架防支护失效连接件，其特征在于，它是加工有楔形孔洞的金属件，楔形孔洞的横截面为长圆形，纵断面形状为一个直角梯形，要求梯形斜边的斜度为1:(38-40),孔洞梯形的上底尺寸小于两倍格栅支架钢筋的直径、且大于一倍格栅支架钢筋的直径，孔洞梯形2/3高度处的宽度等于两倍格栅支架钢筋的直径，从而保证该连接件在穿过一根钢筋后另一根钢筋仅插入2/3深度。A grid bracket support failure prevention connector is characterized in that it is a metal piece processed with a wedge-shaped hole, the cross-section of the wedge-shaped hole is oblong, and the longitudinal section shape is a right-angled trapezoid. The degree is 1: (38-40), the size of the upper bottom of the hole trapezoid is less than twice the diameter of the grid support steel bar, and greater than one time the diameter of the grid support steel bar, and the width of the hole trapezoid at 2/3 height is equal to twice the grid The diameter of the steel bar of the grid support, so as to ensure that the connecting piece is only inserted into 2/3 of the depth of the other steel bar after passing through one steel bar.
本发明连接件的使用方法如下：The using method of the connector of the present invention is as follows:
用于格栅支架的连接时，将两个连接件分别套在格栅支架的钢筋对接头上，并使钢筋仅靠在楔形孔洞的直角边一侧，且使钢筋的对接头露出，露出高度应为连接件高度的2/3，然后再把两者钢筋的对接头分别插入对方的斜边一侧楔形孔洞中，相互插紧，通过两个楔形连接件将格栅支架的对接头搭接在一起。When used for the connection of the grid support, put the two connecting pieces on the steel bar butt joints of the grid support respectively, and make the steel bar only lean against the right-angle side of the wedge-shaped hole, and expose the butt joint of the steel bar, and the exposed height It should be 2/3 of the height of the connecting piece, and then insert the butt joints of the two steel bars into the wedge-shaped holes on the hypotenuse side of the other side, insert each other tightly, and overlap the butt joints of the grid support through the two wedge-shaped joints together.
用本发明的连接件和方法连接组成支架有以下积极效果，楔形孔洞的面斜度类似莫氏锥度的原理，当用连接件搭接好的格栅支架支护矿山巷道和各类隧道工程时，格栅支架钢筋所受的轴向力达到一定值时，由于楔形孔洞的锥面作用，使支架的上下两根钢筋移动都受到一定限制，迫使格栅支架实现缩动，围岩压力减少，避免支架失效；当变形适当的时候终止缩动，避免支架出现屈曲破坏而失效，保证巷道或隧道处于良好的状态。与其它普通连接件相比，还具有加工简单、装配方便的优点。Using the connector and method of the present invention to connect the brackets has the following positive effects. The surface slope of the wedge-shaped hole is similar to the principle of Morse taper. , when the axial force on the steel bars of the grid support reaches a certain value, due to the conical surface of the wedge-shaped hole, the movement of the upper and lower steel bars of the support is limited to a certain extent, forcing the grid support to shrink, and the pressure of the surrounding rock is reduced. Avoid support failure; stop shrinkage when the deformation is appropriate, avoid buckling damage and failure of the support, and ensure that the roadway or tunnel is in good condition. Compared with other ordinary connectors, it also has the advantages of simple processing and convenient assembly.
附图说明Description of drawings
图1是本发明楔形连接件的主视图；Fig. 1 is the front view of wedge connector of the present invention;
图2是图1的仰视图；Fig. 2 is the bottom view of Fig. 1;
图3是图1的俯视图；Fig. 3 is the top view of Fig. 1;
图4是本发明楔形连接件的使用状态图，图中仅示出格栅拱梁和格栅支腿连接时的使用状态图。Fig. 4 is a view of the use state of the wedge-shaped connector of the present invention, in which only the view of the use state when the grid arch beam and the grid leg are connected is shown.
图例说明：1-金属件；2-楔形孔洞，3-上钢筋对接头，4-下钢筋对接头。Legend: 1- metal parts; 2- wedge-shaped hole, 3- butt joint of upper steel bar, 4- butt joint of lower steel bar.
具体实施方式Detailed ways
如图1-3所示，本发明的格栅支架防支护失效连接件，它是加工有楔形孔洞2的金属件1；从图1可以看出，楔形孔洞2的横截面为长圆形，纵断面形状为一个直角梯形，要求梯形斜边的斜度为1:(38-40),孔洞梯形的上底尺寸小于两倍格栅支架钢筋的直径、且大于一倍格栅支架钢筋的直径，孔洞梯形2/3高度处的宽度等于两倍格栅支架钢筋的直径，从而保证该连接件在穿过一根钢筋后另一根钢筋仅插入2/3深度。As shown in Figures 1-3, the grid bracket anti-support failure connector of the present invention is a metal piece 1 processed with a wedge-shaped hole 2; as can be seen from Figure 1, the cross-section of the wedge-shaped hole 2 is oblong , the shape of the longitudinal section is a right-angled trapezoid, and the slope of the trapezoidal hypotenuse is required to be 1: (38-40). Diameter, the width at the 2/3 height of the hole trapezoid is equal to twice the diameter of the grid support steel bar, so as to ensure that the connecting piece is only inserted into the other steel bar at 2/3 depth after passing through one steel bar.
如图4所示，用于格栅支架的连接时，将两个连接件分别套在格栅支架的上钢筋对接头3和下钢筋对接头4上，并使钢筋仅靠在楔形孔洞2的直角边一侧，且使钢筋的对接头露出，露出高度应为连接件高度的2/3，然后再把上钢筋对接头3和下钢筋对接头4分别插入对方的斜边一侧楔形孔洞2中，相互插紧，通过两个楔形连接件将格栅支架的上钢筋对接头3和下钢筋对接头4搭接在一起。As shown in Figure 4, when used for the connection of the grid support, the two connecting pieces are respectively placed on the upper steel bar butt joint 3 and the lower steel bar butt joint 4 of the grid support, and the steel bar only leans against the wedge-shaped hole 2. One side of the right-angled side, and the butt joint of the steel bar is exposed, and the exposed height should be 2/3 of the height of the connector, and then the upper steel bar butt joint 3 and the lower steel bar butt joint 4 are respectively inserted into the wedge-shaped hole 2 on the hypotenuse side of the other side In the middle, they are inserted into each other tightly, and the upper steel bar butt joint 3 and the lower steel bar butt joint 4 of the grid support are lapped together by two wedge-shaped connectors.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310084012.2A CN103174710B (en) | 2013-03-15 | 2013-03-15 | Grille frame supporting-failure-resistant connector and use thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310084012.2A CN103174710B (en) | 2013-03-15 | 2013-03-15 | Grille frame supporting-failure-resistant connector and use thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103174710A CN103174710A (en) | 2013-06-26 |
| CN103174710B true CN103174710B (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310084012.2A Expired - Fee Related CN103174710B (en) | 2013-03-15 | 2013-03-15 | Grille frame supporting-failure-resistant connector and use thereof |
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| Country | Link |
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| CN (1) | CN103174710B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE830496C (en) * | 1950-07-16 | 1952-02-04 | Gutehoffnungshuette Oberhausen | Lock pocket for pit stamp |
| CN202111410U (en) * | 2011-03-07 | 2012-01-11 | 王海斌 | High-voltage transmission line conductor butt joint and fixing device |
| CN102434180A (en) * | 2011-11-18 | 2012-05-02 | 山东科技大学 | Continuous resistance-increasing deformation anchor |
| CN202611730U (en) * | 2012-06-12 | 2012-12-19 | 薄维仑 | Detachable lock plate |
| CN203189047U (en) * | 2013-03-15 | 2013-09-11 | 山东科技大学 | Wedge-shaped connecting piece for contractible grid support |
-
2013
- 2013-03-15 CN CN201310084012.2A patent/CN103174710B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE830496C (en) * | 1950-07-16 | 1952-02-04 | Gutehoffnungshuette Oberhausen | Lock pocket for pit stamp |
| CN202111410U (en) * | 2011-03-07 | 2012-01-11 | 王海斌 | High-voltage transmission line conductor butt joint and fixing device |
| CN102434180A (en) * | 2011-11-18 | 2012-05-02 | 山东科技大学 | Continuous resistance-increasing deformation anchor |
| CN202611730U (en) * | 2012-06-12 | 2012-12-19 | 薄维仑 | Detachable lock plate |
| CN203189047U (en) * | 2013-03-15 | 2013-09-11 | 山东科技大学 | Wedge-shaped connecting piece for contractible grid support |
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| CN103174710A (en) | 2013-06-26 |
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