CN113818913B - MU steel shed support and method for rock burst mine roadway support - Google Patents
MU steel shed support and method for rock burst mine roadway support Download PDFInfo
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- CN113818913B CN113818913B CN202110921688.7A CN202110921688A CN113818913B CN 113818913 B CN113818913 B CN 113818913B CN 202110921688 A CN202110921688 A CN 202110921688A CN 113818913 B CN113818913 B CN 113818913B
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- 239000011435 rock Substances 0.000 title claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 30
- 239000010959 steel Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 7
- 230000000694 effects Effects 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims description 5
- 230000005641 tunneling Effects 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 claims description 2
- 230000002045 lasting effect Effects 0.000 claims description 2
- 239000003245 coal Substances 0.000 description 7
- 230000006378 damage Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 210000000323 shoulder joint Anatomy 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The application discloses an MU steel shed support and a method suitable for rock burst mine roadway support, wherein the MU steel shed support comprises the following steps: the top arch branch is arranged at the top of the roadway; the upper part branches are arranged on two sides of the roadway, and the top arch branches are connected with the upper part branches through arch shoulder connecting sleeves; the bottom arch branches are arranged at the bottom of the roadway; the upper part branch is connected with the bottom arch branch through a bottom foot connecting sleeve; the top arch branch, the upper part branch and the bottom arch branch comprise an M-shaped bracket and a U-shaped bracket which are detachably connected, and the M-shaped bracket can deform to yield and absorb energy when being stressed. The application has the advantages of simple structure, convenient use, good yielding effect and the like.
Description
Technical Field
The application relates to the technical field of coal mine roadway support, in particular to an MU steel shed support suitable for rock burst mine roadway support.
Background
Rock burst refers to a dynamic phenomenon of sudden and violent destruction of coal (rock) bodies around a coal mine roadway or a working surface due to instantaneous release of elastic deformation energy. When rock burst occurs, surrounding rock suddenly breaks, collapses or is thrown into a roadway, and meanwhile, severe vibration and sound are accompanied, so floor heave, caving and roof fall of the roadway are often caused, and heavy losses such as damage of supporting structures, deformation of mining space, casualties and the like are easily caused.
Along with the increasing of the coal mining depth, the number of rock burst mines in China is in an increasing trend, and in view of the distribution universality of the rock burst mines and the severity of rock burst disasters, measures are taken to relieve the occurrence intensity of rock burst and reduce the damage degree of the rock burst, so that the attention of expert students in the present stage is focused.
The measures for preventing and controlling rock burst accidents can be divided into preventive measures before accidents and control measures in the event of accidents. The precautions before the accident mainly include a drilling pressure relief measure, a roof breaking and bottom breaking pressure relief measure, a working face propulsion speed changing pressure relief measure and the like, which change the energy storage condition of the overlying strata, reduce the energy storage strength and have remarkable effect in preventing rock burst. Aiming at the aspect of control measures in the accident occurrence, in view of the fact that the impact accident mainly occurs in the roadway, the improvement of the roadway support strength becomes an effective measure for reducing impact damage. In rock burst mine roadway support, the strength, rigidity and other parameters of the support structure body have larger influence on the support effect, and if the strength of the support structure body is smaller, the support structure body has lower bearing capacity and is difficult to resist impact dynamic load; if the support structure has high rigidity, the allowable deformation amount is small, and the support structure is easy to damage under the impact action, so that serious impact is caused to appear. Therefore, the low-rigidity supporting structure body with high strength and rapid yielding and energy absorption is adopted to adapt to the surrounding rock instantaneous deformation to become a common consensus in the rock burst roadway supporting field.
The national coal mine safety supervision bureau in 2018 issues a rule for preventing and controlling coal mine rock burst, which indicates that rigid support is strictly forbidden for rock burst roadways, and impact-resistant anchor rods (ropes), retractable brackets and the like can be adopted to improve the impact resistance of the roadway. In 2019, the "method for preventing and controlling rock burst in coal mine in Shandong province" indicates that a tunneling roadway with a strong rock burst risk should adopt a reinforced supporting mode with a safety space after being impacted, such as a retractable U-shaped steel shed, besides an active supporting mode. In combination with relevant regulation specifications and general consensus, expert scholars propose a three-stage supporting scheme of rock burst roadway: the primary anchor rod (cable) is supported by a pressure yielding support, the secondary pressure yielding support is supported by a steel shed, and the tertiary stope working face is supported by a hydraulic support in an advance range.
In the existing supporting mode, the anchor rod (cable) yielding supporting technology is mature, typical yielding members comprise yielding pipes, yielding trays, large-elongation anchor rods (cables) and the like, and field application is common. In the steel shed support, a U-shaped steel contractible bracket is typically arranged, the steel shed bracket realizes the compression purpose by utilizing the sliding deformation of the constraint position, the strength of the steel shed bracket is lower, the compression effect depends on the sliding deformation amplitude of the constraint position, and the sliding deformation amplitude has larger randomness, so that no other effective steel shed bracket exists at present.
Disclosure of Invention
Based on the above, it is necessary to provide an MU steel canopy support which has a simple structure, is convenient to use, has a good yielding effect, and is suitable for rock burst mine roadway support.
An MU steel canopy support suitable for rock burst mine roadway support, comprising:
the top arch branch is arranged at the top of the roadway;
the upper part branches are arranged on two sides of the roadway, and the top arch branches are connected with the upper part branches through arch shoulder connecting sleeves;
the bottom arch branches are arranged at the bottom of the roadway; the upper part branch is connected with the bottom arch branch through a bottom foot connecting sleeve;
the top arch branch, the upper part branch and the bottom arch branch comprise an M-shaped bracket and a U-shaped bracket which are detachably connected, and the M-shaped bracket can deform to yield and absorb energy when being stressed.
In one embodiment, the M-shaped bracket comprises two middle struts and two side legs, wherein the two middle struts are symmetrically arranged, and the two side legs are correspondingly connected to the bottoms of the two middle struts;
two grooves are symmetrically formed in the U-shaped support, and the bottoms of the two side legs are inserted into the grooves and matched with the grooves.
In one embodiment, the included angle between the middle support and the side legs is 88-92 degrees.
In one embodiment, the upper branch comprises a straight line segment and an arc segment, and the central angle of the arc segment is 30 degrees. The bottom arch branch is arc-shaped, and the central angle of the arc is 65 degrees.
In one embodiment, the spandrel connection sleeve includes a first MU-type outer frame, a first MU-type inner post, and a first upper and lower connection plate;
the first MU type external frame is sleeved at the joint of the top arch branch and the upper part branch, the first upper and lower connecting plates are arranged in the middle of the first MU type external frame, the first MU type internal upright posts are symmetrically arranged at the upper and lower ends of the first upper and lower connecting plates, and the first MU type internal upright posts penetrate through the top arch branch and the upper part branch respectively.
In one embodiment, the height of the first MU-type inner post is less than the height of the first MU-type outer frame.
In one embodiment, the foot connecting sleeve comprises a second MU type outer frame, a second MU type inner upright post and a second upper and lower connecting plate;
the second MU type external frame is sleeved at the joint of the upper part branch and the bottom arch branch, the second upper and lower connecting plates are arranged in the middle of the second MU type external frame, the second MU type internal upright posts are symmetrically arranged at two ends of the second upper and lower connecting plates, and the second MU type internal upright posts are respectively penetrated in the upper part branch and the bottom arch branch;
the second upper connecting plate and the second lower connecting plate are in abnormal shapes, and the sectional area of one side close to the side wall of the roadway is smaller than the sectional area of the other side far away from the side wall of the roadway.
In one embodiment, the tunnel further comprises a top arch fixing rod, wherein two ends of the top arch fixing rod are respectively connected to the arch shoulder connecting sleeves on two sides of the tunnel.
In one embodiment, the tunnel further comprises a bottom arch fixing rod, and two ends of the bottom arch fixing rod are respectively connected to the bottom arch connecting sleeves on two sides of the tunnel.
The positive effects of the application are described below according to the implementation method:
when the tunneling is completed, installing a bottom arch branch at the bottom of the roadway, respectively installing a bottom arch connecting sleeve at two sides of the bottom arch branch, respectively installing a side branch above the two bottom arch connecting sleeves, respectively installing an arch shoulder connecting sleeve above the side branch, respectively installing a top arch branch above the two arch shoulder connecting sleeves, then welding a top arch fixing rod at the positions of the two arch shoulder connecting sleeves, and finally welding a bottom arch fixing rod at the positions of the two bottom arch connecting sleeves, thereby completing the installation. When the mine comes to press, because the M type support of steel canopy hugs closely the rock wall, under the impact force effect, the M type support can take place compressive deformation, realize letting the pressure energy-absorbing, it lets the height be the height of M type support that highly is, let the pressure function more stable, simultaneously under the supporting role of roof arch dead lever and bottom arch dead lever, the intensity and the rigidity of steel canopy support further improve, bottom arch branch, group portion branch and roof arch branch are an integer simultaneously, no matter the impact force comes from which direction, can alleviate impact load each other between the three branch, cooperate the impact force, thereby realize lasting letting the pressure. Thereby the application has the advantages of simple structure, convenient use, good yielding effect and the like
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present application;
FIG. 2 is a schematic view of the structure of the top arch branch of the present application;
FIG. 3 is a cross-sectional view of FIG. 2 at I-I;
FIG. 4 is a schematic structural view of an M-shaped bracket according to the present application;
FIG. 5 is a schematic view of the structure of the U-shaped bracket of the present application;
FIG. 6 is a schematic view of the construction of the upper branch of the present application;
FIG. 7 is a schematic view of the structure of the bottom arch branch of the present application;
FIG. 8 is a view of the installation location of the shoulder joint sleeve of the present application;
FIG. 9 is a cross-sectional view of FIG. 8 at II-II;
FIG. 10 is a schematic view of the construction of the shoulder joint sleeve of the present application;
FIG. 11 is a cross-sectional view of FIG. 10 at III-III;
FIG. 12 is a mounting position view of the foot attachment sleeve of the present application;
fig. 13 is a schematic view of the internal structure of the foot connecting sleeve of the present application.
Detailed Description
In order that the application may be readily understood, a more complete description of the application will be rendered by reference to the appended drawings. Preferred embodiments of the present application are shown in the drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-13, an embodiment of the present application provides an MU steel canopy support suitable for rock burst mine roadway support, comprising a top arch branch 1, a top arch branch 2, a bottom arch branch 3, a shoulder connection sleeve 4, and a footing connection sleeve 5.
The top arch branch 1 is arranged at the top of the roadway; the upper branch 2 is arranged at two sides of a roadway, and the top arch branch 1 is connected with the upper branch 2 through an arch shoulder connecting sleeve 4; the bottom arch branch 3 is arranged at the bottom of the roadway; the upper part branch 2 is connected with the bottom arch branch 3 through a foot connecting sleeve 5;
the top arch branch 1, the upper branch 2 and the bottom arch branch 3 comprise an M-shaped bracket 11 and a U-shaped bracket 12 which are detachably connected, and the M-shaped bracket 11 can deform to allow pressure and absorb energy when being stressed.
The MU steel shed support suitable for rock burst mine roadway support is characterized in that the M-shaped support 11 deforms under the action of impact force, so that the yielding energy is realized, the yielding height is similar to the height of the M-shaped support 11, and the yielding function is stable, so that the application has the advantages of simple structure, convenience in use, good yielding effect and the like.
In an embodiment of the present application, the M-shaped bracket 11 includes two middle struts 111 and two side legs 112, the two middle struts 111 are symmetrically disposed, and the two side legs 112 are correspondingly connected to bottoms of the two middle struts 111; optionally, the included angle between the middle support 111 and the side legs 112 is 88-92 °. In the embodiment, the included angle between the side legs 112 at two sides and the vertical direction is 28-32 degrees, and the length of the side legs 112 is 63-64mm; the length of the middle support 111 is 33-34mm; the thickness of the side legs 112 and the middle support 111 is 9-11mm.
Two grooves 121 are symmetrically formed in the U-shaped bracket 12, and bottoms of the two side legs 112 are inserted into the grooves 121 and are matched with the grooves 121. In this embodiment, the cross section of the U-shaped bracket 12 is a U-shaped steel, the opening of the groove 121 is 4-5mm away from the top end of the U-shaped steel, the angle between the long side of the groove 121 and the vertical direction is 29-31 °, the angle between the short side is 16-17mm, the angle between the short side and the vertical direction is 29-31 °, and the short side is 5-6mm. The groove 121 is 9-11mm wide and the yield strength of the U-shaped bracket 12 is 400-500MPa.
In the embodiment, the top arch branch 1 is arc-shaped, the central angle of the arc is 120 degrees, the radius of the arc is 2250-2750mm, and the central line arc length of the top arch branch 1 is 4880-7410 mm.
The upper part branch 2 comprises a straight line section 21 and an arc-shaped section 22, and the central angle of the arc-shaped section 22 is 30 degrees. The bottom arch branch 3 is arc-shaped, and the central angle of the arc is 65 degrees. Alternatively, straight segment 21 has a length of 1480-1490mm, arcuate segment 22 has an arcuate radius of 2250-2750mm, and arcuate segment centerline position has a length of 1220-1490 mm. The arc radius of the bottom arch branch 3 is 4460-4970mm, and the central line arc length of the bottom arch branch 3 is 5060-5640 mm.
In one embodiment of the present application, the spandrel connecting sleeve 4 includes a first MU-type outer frame 41, a first MU-type inner post 42, and a first upper and lower connecting plate 43;
the first MU type outer frame 41 is sleeved at the joint of the top arch branch 1 and the upper branch 2, the first upper and lower connecting plates 43 are arranged in the middle of the first MU type outer frame 41, the first MU type inner upright posts 42 are symmetrically arranged at the upper and lower ends of the first upper and lower connecting plates 42, and the first MU type inner upright posts 42 are respectively penetrated inside the top arch branch 1 and the upper branch 2. In this embodiment, the wall thickness of the first MU type outer frame 41 is 9-11mm, the upper portion is M-shaped, the lower portion is U-shaped, and the height is 380-420mm. The thickness of the first upper and lower connection plates 42 is 35-45mm. The edges of the first MU-type inner post 42 are 19-21mm from the inner edge of the first MU-type outer frame 41.
Optionally, in order to avoid the length of the first MU-type internal upright 42 being too long, the difficulty of installation connection is increased, and the height of the first MU-type internal upright 42 is smaller than the height of the first MU-type external frame 41. Such as: the first MU-type inner post 42 is 18-22mm lower in height than the first MU-type outer frame 41.
In one embodiment of the present application, the foot connecting sleeve 5 includes a second MU-type outer frame 51, a second MU-type inner post 52, and a second upper and lower connecting plate 53;
the second MU type outer frame 51 is sleeved at the joint of the upper part branch 2 and the bottom arch branch 3, the second upper and lower connecting plates 53 are arranged in the middle of the second MU type outer frame 51, the second MU type inner upright posts 52 are symmetrically arranged at two ends of the second upper and lower connecting plates 53, and the second MU type inner upright posts 53 are respectively arranged in the upper part branch 2 and the bottom arch branch 3 in a penetrating manner;
wherein, the second upper and lower connection plates 53 are shaped, and the cross-sectional area of one side close to the side wall of the roadway is smaller than the cross-sectional area of the other side far away from the side wall of the roadway. Optionally, the included angle between the center lines of the second MU-type inner posts 52 on both sides of the second upper and lower connection plates 53 is 119-121 °.
In an embodiment of the present application, the present application further includes a top arch fixing rod 6, and two ends of the top arch fixing rod 6 are respectively connected to the shoulder connecting sleeves 4 on two sides of the roadway. The section of the top arch fixing rod 6 is round steel, the diameter is 90-100mm, and the yield strength is 400-500MPa.
In an embodiment of the present application, the present application further comprises a bottom arch fixing rod 7, and two ends of the bottom arch fixing rod 7 are respectively connected to the foot connecting sleeves 5 on two sides of the roadway. The section of the bottom arch fixing rod 7 is round steel, the diameter is 90-100mm, and the yield strength is 400-500MPa.
The specific implementation process of the application is as follows:
the tunneling is completed, the bottom arch branch 3 is installed at the bottom of the tunnel, then, the footing connecting sleeves 5 are respectively installed at the two sides of the bottom arch branch 3, then, the upper branches 2 are respectively installed above the two footing connecting sleeves 5, the shoulder connecting sleeves 4 are respectively installed above the upper branches 2, then, the top arch branch 1 is installed above the two shoulder connecting sleeves 4, then, the top arch fixing rods 6 are welded at the positions of the two shoulder connecting sleeves 4, and finally, the bottom arch fixing rods 7 are welded at the positions of the two footing connecting sleeves 5, so that the installation is completed.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The examples described above represent only a few embodiments of the present application and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (6)
1. An MU steel canopy support for rock burst mine roadway support, comprising:
the top arch branch is arranged at the top of the roadway;
the upper part branch is arranged on two sides of the roadway, the top arch branch is connected with the upper part branch through an arch shoulder connecting sleeve, and the arch shoulder connecting sleeve comprises a first MU type external frame, a first MU type internal upright post and a first upper connecting plate and a first lower connecting plate; the first MU type external frame is sleeved at the joint of the top arch branch and the upper part branch, the first upper and lower connecting plates are arranged in the middle of the first MU type external frame, the first MU type internal upright posts are symmetrically arranged at the upper and lower ends of the first upper and lower connecting plates, and the first MU type internal upright posts are respectively penetrated in the top arch branch and the upper part branch;
the bottom arch branches are arranged at the bottom of the roadway; the upper part branch is connected with the bottom arch branch through a bottom foot connecting sleeve, and the bottom foot connecting sleeve comprises a second MU type external frame, a second MU type internal upright post and a second upper connecting plate and a second lower connecting plate; the second MU type external frame is sleeved at the joint of the upper part branch and the bottom arch branch, the second upper and lower connecting plates are arranged in the middle of the second MU type external frame, the second MU type internal upright posts are symmetrically arranged at two ends of the second upper and lower connecting plates, and the second MU type internal upright posts are respectively penetrated in the upper part branch and the bottom arch branch; the second upper connecting plate and the second lower connecting plate are in abnormal shapes, and the sectional area of one side close to the side wall of the roadway is smaller than the sectional area of the other side far away from the side wall of the roadway;
the two ends of the bottom arch fixing rod are respectively connected to the footing connecting sleeves at the two sides of the roadway;
the two ends of the top arch fixing rod are respectively connected to the arch shoulder connecting sleeves at two sides of the roadway;
the top arch branch, the upper part branch and the bottom arch branch comprise an M-shaped bracket and a U-shaped bracket which are detachably connected, and the M-shaped bracket can deform to yield and absorb energy when being stressed.
2. The MU steel shed bracket for rock burst mine roadway support as claimed in claim 1, wherein said M-shaped bracket comprises two middle supports and two side legs, wherein said two middle supports are symmetrically arranged, and said two side legs are correspondingly connected to the bottoms of said two middle supports; two grooves are symmetrically formed in the U-shaped support, and the bottoms of the two side legs are inserted into the grooves and matched with the grooves.
3. The MU steel canopy support for rock burst mine roadway support of claim 2, wherein the included angle between the middle support and the side legs is 88-92 °.
4. A MU steel canopy support for rock burst mine roadway support as claimed in any one of claims 1-3, wherein the upper support comprises a straight line section and an arcuate section, the arcuate section having a central angle of 30 °; the bottom arch branch is arc-shaped, and the central angle of the arc is 65 degrees.
5. The MU steel canopy support for rock burst mine roadway support of claim 4, wherein the height of the first MU-type inner post is less than the height of the first MU-type outer frame.
6. A method for realizing the MU steel shed bracket for rock burst mine tunnel support according to any one of claims 1-5, characterized in that when tunnel tunneling is completed, a bottom arch branch is arranged at the bottom of the tunnel, then a bottom arch connecting sleeve is respectively arranged at two sides of the bottom arch branch, then a side branch is respectively arranged above the two bottom arch connecting sleeves, a shoulder connecting sleeve is respectively arranged above the side branch, then a top arch branch is arranged above the two shoulder connecting sleeves, then a top arch fixing rod is welded at the positions of the two shoulder connecting sleeves, and finally a bottom arch fixing rod is welded at the positions of the two bottom arch connecting sleeves, thus the installation is completed; when the mine comes to press, because the M type support of steel canopy hugs closely the rock wall, under the impact force effect, the M type support can take place compressive deformation, realize letting the pressure energy-absorbing, it lets the height be the height of M type support that highly is, let the pressure function more stable, simultaneously under the supporting role of roof arch dead lever and bottom arch dead lever, the intensity and the rigidity of steel canopy support further improve, bottom arch branch, group portion branch and roof arch branch are an integer simultaneously, no matter the impact force comes from which direction, can alleviate impact load each other between the three branch, cooperate the impact force, thereby realize lasting letting the pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110921688.7A CN113818913B (en) | 2021-08-12 | 2021-08-12 | MU steel shed support and method for rock burst mine roadway support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110921688.7A CN113818913B (en) | 2021-08-12 | 2021-08-12 | MU steel shed support and method for rock burst mine roadway support |
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| CN113818913A CN113818913A (en) | 2021-12-21 |
| CN113818913B true CN113818913B (en) | 2023-09-19 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201526327U (en) * | 2009-11-10 | 2010-07-14 | 义马煤业集团股份有限公司千秋煤矿 | U-shaped full-face steel support |
| CN104047614A (en) * | 2014-07-15 | 2014-09-17 | 山东科技大学 | Supporting method for high-expansion argillization soft rock roadway replacement |
| CN108915700A (en) * | 2018-06-26 | 2018-11-30 | 太原理工大学 | A kind of association type Floor Heave in Roadway administering method |
| CN112253183A (en) * | 2020-09-30 | 2021-01-22 | 长沙矿山研究院有限责任公司 | Energy-absorbing profiling active support structure for arch roadway and support method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237646B (en) * | 2017-06-28 | 2019-04-26 | 山东科技大学 | Large deformation constant resistance supporting grouted anchor bar, anchor cable and tunnel quantify method for protecting support |
-
2021
- 2021-08-12 CN CN202110921688.7A patent/CN113818913B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201526327U (en) * | 2009-11-10 | 2010-07-14 | 义马煤业集团股份有限公司千秋煤矿 | U-shaped full-face steel support |
| CN104047614A (en) * | 2014-07-15 | 2014-09-17 | 山东科技大学 | Supporting method for high-expansion argillization soft rock roadway replacement |
| CN108915700A (en) * | 2018-06-26 | 2018-11-30 | 太原理工大学 | A kind of association type Floor Heave in Roadway administering method |
| CN112253183A (en) * | 2020-09-30 | 2021-01-22 | 长沙矿山研究院有限责任公司 | Energy-absorbing profiling active support structure for arch roadway and support method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 过奥灰水断层的大断面巷道施工技术研究;王渭明;吕显州;秦文露;;煤炭科学技术(10);第34-39页 * |
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