CN104847381A - Buffer-energy absorption high resistance coupling support method of deep roadway - Google Patents
Buffer-energy absorption high resistance coupling support method of deep roadway Download PDFInfo
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Abstract
The invention discloses a buffer-energy absorption high resistance coupling support method of a deep roadway. Support structures of the method consist of three layers, wherein the outermost layers are bolt-shotcreting support layers; the intermediate layers are buffer-energy absorption layers; the innermost layers are stable support layers; the outermost layers mainly exert effects of wall rock reinforcement and preliminary support; the intermediate layers mainly exert shock insulation effects of buffer and energy absorption; and the innermost layers mainly exert effects of overall support stability and support resistance. According to the method, three support structures are provided according to local conditions and apply to support under three rock burst strengths respectively; each support consists of a three-layer structure; especially, the intermediate layers have the shock insulation effects of the buffer and energy absorption; materials are cheap; and the support method can achieve a toughness and softness combination effect and has an important practical application value for guaranteeing safety production of a coal mine.
Description
Technical field:
The present invention relates to roadway support field, be particularly useful for tunnel, rock stratum and adopt different retaining structures under different bump intensity.
Background technology:
In China, along with the increase of mining depth and the continuous expansion of limit of mining, Beijing, Fushun, Zaozhuang, open many mines in the mining areas such as Luan, Datong District, Beipiao City, Nan Tong, all successively have bump phenomenon to occur.Along with the continuous increase of mining depth, the harm of bump will be more outstanding, and a lot of tunnel excavates rear 1-2 month will unstable failure, has a strong impact on the safe handling in coal production and tunnel.Rich coal resources in China, current explored coal reserves accounts for 11.1% of whole world coal total resources, and coal reserves is in the majority in deep, and buried depth is about 2.5 trillion tons at the coal resources of below 1000m, accounts for 53% of coal resources total amount.Add up since 1985 to 2010, increase with mining depth, bump numeber of mines quantitative change law is known, and mining depth average was that 500m develops into about 900m in 2010 by 1985, and bump mine quantity increases to 2010 more than 100 by 30 of nineteen eighty-two.It can thus be appreciated that along with mining depth increases, coal mine dynamic disaster frequency and intensity obviously increase.Along with developing rapidly of Chinese national economy, the demand of coal constantly increases, coal mining depth and difficulty strengthen gradually, mining depth reaches about 1000m, km deep-well quantity also increases sharply, the generation of bump is more and more frequent, produces threaten greatly to people's life, property and production safety.Bump there is instantaneity, sudden and destructive, a large amount of fault offset of simultaneous, release impact energy is greatly to 10
3mJ.Release impact energy mainly acts on two parts, and a part acts on coal and rock, causes the fragmentation of coal and rock; Another part acts on roadway surrounding rock and supporting and protection structure by transmitting consumption, and its enormous impact can act on coal and rock and tunnel, causes the broken and tunnel of coal and rock and Support structure damage thereof.Along with the increase of mining depth, the energy value of coal and rock inner accumulated is also higher, also very easily impacts destruction.
And 2 points to be accomplished for the roadway support key of bump in deep part: the first, supporting and protection structure must control the larger distortion of roadway surrounding rock; The second, to a certain extent must suitable for surrounding rock appropriateness distortion, can not be very stiff and demanding.And more existing conventional arts all can not meet these 2 requirements substantially well simultaneously, as i iron or U-shaped steel supporting, anchor rete cord or bolt-grouting support, coupling supporting; Three, because of different geological conditionss, bump intensity occurs is different, therefore under different geological conditions, just need to provide different supporting and protection structure with suiting measures to local conditions, the cost of supporting can be reduced, also can reduce manpower, material resources.The intensity of bump under different geological conditions is divided into Three Estate by a kind of deep tunnel buffering-energy-absorbing of the present invention high resistance power coupling supporting method, thus provide three kinds of supporting and protection structure be suitable for Three Estate bump intensity respectively under supporting, often kind of supporting is all made up of three layer construction, particularly intermediate layer has buffering and endergonic effect, above 2 points can be accomplished well, reach hard and soft and the effect of depositing.This invention has important actual application value to guarantee Safety of Coal Mine Production.
Summary of the invention:
Problem to be solved by this invention is to provide a kind of supporting method adopting different retaining structures under different bump intensity.
The technical solution adopted in the present invention is: a kind of deep tunnel buffering-energy-absorbing high resistance power coupling supporting method, its supporting and protection structure forms by three layers, outermost layer is bolt-spary supports layer, intermediate layer is buffering-absorbing energy layer, the stable sheath of innermost layer, and outermost layer mainly plays reinforce adjoining rock and preliminary support action; The function of shock insulation of buffering and energy-absorbing is mainly played in intermediate layer; Innermost layer mainly plays the monolithic stability of supporting and supports effect of elastic resistance.Its supporting method is that the intensity of bump is divided into Three Estate: 30MPa, 50MPa, 80MPa, thus three kinds of grade supporting and protection structure are provided respectively, its bearing strength is respectively: be less than 30MPa, 30 ~ 50MPa, 50 ~ 80MPa, and three kinds of grade supporting and protection structure are as follows:
Described the first estate supporting and protection structure, its carrying bump intensity is less than 30MPa, described outermost layer is that bolt-mesh-spurting supporting is made up of anchor pole, anchor cable, concrete combined supporting, and described rock-bolt length is 1.2 ~ 1.5m, and spacing is about 0.5m, pretightning force is 40 ~ 70kN, described anchor cable length 5 ~ 10m, concrete length is chosen according to engineering specifications, and spacing is not less than 1/3rd of anchor cable length, generally only be arranged in the top country rock in tunnel, described concrete ejection is no less than 200mm; Described intermediate layer is that buffering-absorbing energy layer is mixed according to the ratio of 1:4 by spoil grain and admaic earth, the particle diameter of described spoil grain is 2 ~ 5mm, compressive strength is 20 ~ 50MKa, and described admaic earth is the admaic earth of high plastic limit, low-intensity, low denseness, and its thickness laid is for being no less than 300mm; Described innermost layer is by steel mesh reinforcement, sleeper, the O type support of U-shaped steel and energy-absorbing material composition and connecting elements composition, the bar diameter of described steel mesh reinforcement is 3mm, the aperture of net is not less than 2mm, and described sleeper thickness is 15 ~ 25mm, and described U-shaped hardness of steel at least uses model for 36U, its supporting spacing is less than 800mm, and described energy-absorbing material uses porous metal material.
Described second grade supporting and protection structure, its carrying bump intensity is 30 ~ 50MPa, described outermost layer is that bolt-mesh-spurting supporting is made up of anchor pole, anchor cable, concrete combined supporting, and described rock-bolt length is 1.2 ~ 1.5m, and spacing is about 0.5m, pretightning force is 40 ~ 70kN, described anchor cable length 5 ~ 10m, concrete length is chosen according to engineering specifications, and spacing is not less than 1/3rd of anchor cable length, generally only be arranged in the top country rock in tunnel, described concrete ejection is no less than 200mm; Described intermediate layer is that buffering-absorbing energy layer is mixed according to the ratio of 1:4 by spoil grain and admaic earth, the particle diameter of described spoil grain is 2 ~ 5mm, compressive strength is 20 ~ 50MKa, and described admaic earth is the admaic earth of high plastic limit, low-intensity, low denseness, and its thickness laid is for being no less than 400mm; Described innermost layer is that mixed layer is made up of contractibility metallic framework and concrete, described contractibility metallic framework is worked out by the reinforcing bar of diameter to be the reinforcing bar of 20mm and diameter be 10mm, wherein diameter is that the reinforcing bar of 20mm is as girder reinforcing bar, diameter is that the reinforcing bar of 10mm is as connecting reinforcement, connecting reinforcement and girder reinforcing bar are woven into triangle by space crossed, main object is that triangle has stability, thus ensures the stability of whole support body; Described concrete ejection, on contractibility metallic framework, is connected as a single entity with contractibility metallic framework, and the thickness of injection is not less than 600mm.
Described tertiary gradient supporting and protection structure, its carrying bump intensity is 50 ~ 80MPa, described outermost layer is that bolt-mesh-spurting supporting is made up of anchor pole, anchor cable, concrete combined supporting, and described rock-bolt length is 1.2 ~ 1.5m, and spacing is about 0.5m, pretightning force is 40 ~ 70kN, described anchor cable length 5 ~ 10m, concrete length is chosen according to engineering specifications, and spacing is not less than 1/3rd of anchor cable length, generally only be arranged in the top country rock in tunnel, described concrete ejection thickness is no less than 200mm, described intermediate layer is that buffering-absorbing energy layer is mixed according to the ratio of 1:4 by spoil grain and admaic earth, the particle diameter of described spoil grain is 2 ~ 5mm, compressive strength is 20 ~ 50MKa, and described admaic earth is the admaic earth of high plastic limit, low-intensity, low denseness, and its thickness laid is for being no less than 500mm, described innermost layer is by contractibility metallic framework and concrete mixed layer, the O type support of U-shaped steel and energy-absorbing material composition and connecting elements composition, described contractibility metallic framework is worked out by the reinforcing bar of diameter to be the reinforcing bar of 20mm and diameter be 10mm, wherein diameter is that the reinforcing bar of 20mm is as girder reinforcing bar, diameter is that the reinforcing bar of 10mm is as connecting reinforcement, connecting reinforcement and girder reinforcing bar are woven into triangle by space crossed, main object is that triangle has stability, thus ensure the stability of whole support body, described concrete ejection is on contractibility metallic framework, be connected as a single entity with contractibility metallic framework, the thickness sprayed is not less than 600mm, described U-shaped hardness of steel at least uses model for 36U, its supporting spacing is less than 600mm, described energy-absorbing material uses porous metal material.
The advantage that the present invention has and good effect are: a kind of deep tunnel buffering-energy-absorbing of the present invention high resistance power coupling supporting method suits measures to local conditions to propose Three Estate supporting and protection structure, be suitable for the supporting under Three Estate bump intensity respectively, often kind of supporting is all made up of three layer construction, particularly intermediate layer has buffering and endergonic function of shock insulation, and material is cheap, this kind of supporting method can reach hard and soft and the effect of depositing, and has important actual application value to guarantee Safety of Coal Mine Production.
Accompanying drawing illustrates:
Fig. 1 is that the first estate supporting and protection structure of the present invention arranges schematic diagram;
Fig. 2 is that the second grade supporting and protection structure of the present invention arranges schematic diagram;
Fig. 3 is that tertiary gradient supporting and protection structure of the present invention arranges schematic diagram;
Fig. 4 is U-shaped steel connecting elements structure chart;
Fig. 5 is contractibility metallic framework cut-away view;
Fig. 6 is contractibility metallic framework connecting board structure figure.
Wherein: 1-bolt-spary supports, 2-anchor pole, 3-anchor cable, the first concrete spray coating of 4-, 5-buffering-absorbing energy layer, 6-steel mesh reinforcement, 7-sleeper, 8-U shaped steel, 9-energy-absorbing material, 10-connecting elements, 11-tunnel roadbed, 12-contractibility metallic framework, 13-contractibility metallic framework junction plate, 14-concrete spray coating, 15-girder reinforcing bar, 16-connecting reinforcement, 17-connecting bolt, 18-attaching nut again.
Detailed description of the invention:
Below in conjunction with accompanying drawing and specific embodiment, the present invention is described in detail.
Embodiment 1: as shown in Figure 1, a kind of deep tunnel buffering-energy-absorbing high resistance power coupling supporting method of the present invention, described the first estate supporting and protection structure, its carrying bump intensity is less than 30MPa, structure forms by three layers, and outermost layer is bolt-spary supports 1, intermediate layer is buffering-absorbing energy layer 5, innermost layer is the supporting of O type.The concrete supporting method of its structure is as follows:
First be that bolt-spary supports 1 is carried out to the tunnel dug, namely be first the anchor pole 2 of 1.2 ~ 1.5m by length be that about 0.5m is arranged in country rock with spacing, last sprayed mortar 4, after the roadway surrounding rock of bolt-spary supports 1 is basicly stable, again anchor cable 3 is arranged in the top country rock in tunnel, reinforcement effect is played to shell.
Then in tunnel, arrange one deck steel mesh reinforcement 6, make spacing between steel mesh reinforcement 6 and bolt-spary supports 1 at least keep 300mm.
Finally between steel mesh reinforcement 6 and bolt-spary supports 1, arrange intermediate layer 5, namely spoil grain and admaic earth are according to the scalemic thereof of 1:4, fill completely, re-lay sleeper 7, as shown in Figure 4, the O type support simultaneously U-shaped steel 8 and energy-absorbing material 9 consisted of connecting elements 10 is erected in tunnel.
Embodiment 2: as shown in Figure 2, a kind of deep tunnel buffering-energy-absorbing high resistance power coupling supporting method of the present invention, described second grade supporting and protection structure, its carrying bump intensity is 30 ~ 50MPa, structure forms by three layers, and outermost layer is bolt-spary supports 1, intermediate layer is buffering-absorbing energy layer 5, innermost layer is contractibility metallic framework 12 and concrete 14 mixed layer.The concrete supporting method of its structure is as follows:
First be that bolt-spary supports 1 is carried out to the tunnel dug, namely be first the anchor pole 2 of 1.2 ~ 1.5m by length be that about 0.5m is arranged in country rock with spacing, last sprayed mortar 4, after the roadway surrounding rock of bolt-spary supports 1 is basicly stable, again anchor cable 3 is arranged in the top country rock in tunnel, reinforcement effect is played to shell.
As shown in Figure 5,6, then contractibility metallic framework 12 and concrete 14 mixed layer is arranged, be about to the contractibility metallic framework 12 worked out be erected in the tunnel after process above by contractibility metallic framework junction plate 13, make spacing between the bolt-spary supports 1 after metallic framework 12 that erection is good and process at least keep 400mm.
Finally between the metallic framework 12 set up and bolt-spary supports 1, arrange intermediate layer 5, namely spoil grain and admaic earth are according to the scalemic thereof of 1:4, fill completely, then to contractibility metallic framework 12 sprayed mortar 14, form steel bar mesh shell liner structure, play final support action.
Embodiment 3: as shown in Figure 3, a kind of deep tunnel buffering-energy-absorbing high resistance power coupling supporting method of the present invention, described second grade supporting and protection structure, its carrying bump intensity is 50 ~ 80MPa, structure forms by three layers, and outermost layer is bolt-spary supports 1, intermediate layer is buffering-absorbing energy layer 5, innermost layer is contractibility metallic framework 12 and concrete 14 mixed layer and the supporting of O type supporting association.The concrete supporting method of its structure is as follows:
First be that bolt-spary supports 1 is carried out to the tunnel dug, namely be first the anchor pole 2 of 1.2 ~ 1.5m by length be that about 0.5m is arranged in country rock with spacing, last sprayed mortar 4, after the roadway surrounding rock of bolt-spary supports 1 is basicly stable, again anchor cable 3 is arranged in the top country rock in tunnel, reinforcement effect is played to shell.
As shown in Figure 2,3, then contractibility metallic framework 12 and concrete 14 mixed layer is arranged, be about to the contractibility metallic framework 12 worked out be erected in the tunnel after process above by contractibility metallic framework junction plate 13, make spacing between the bolt-spary supports 1 after metallic framework 12 that erection is good and process at least keep 500mm.
Last layout between metallic framework 12 and bolt-spary supports 1 cushions-absorbing energy layer 5, namely spoil grain and admaic earth are according to the scalemic thereof of 1:4, fill completely, again to contractibility metallic framework 12 sprayed mortar 14, form steel bar mesh shell liner structure, as shown in Figure 4, the O type support simultaneously U-shaped steel 8 and energy-absorbing material 9 consisted of connecting elements 10 is erected in tunnel.
Claims (4)
1. a deep tunnel buffering-energy-absorbing high resistance power coupling supporting method, its supporting and protection structure forms by three layers, and outermost layer is bolt-spary supports layer, intermediate layer is buffering-absorbing energy layer, the stable sheath of innermost layer, and outermost layer mainly plays reinforce adjoining rock and preliminary support action; The function of shock insulation of buffering and energy-absorbing is mainly played in intermediate layer; Innermost layer mainly plays the monolithic stability of supporting and supports effect of elastic resistance, it is characterized in that: described supporting method is that the intensity of bump is divided into Three Estate: 30MPa, 50MPa, 80MPa, thus three kinds of grade supporting and protection structure are provided respectively, its bearing strength is respectively: be less than 30MPa, 30 ~ 50MPa, 50 ~ 80MPa.
2. deep tunnel buffering-energy-absorbing high resistance power coupling supporting method as claimed in claim 1, described the first estate supporting and protection structure, its carrying bump intensity is less than 30MPa, structure forms by three layers, described outermost layer is that bolt-mesh-spurting supporting is by anchor pole, anchor cable, concrete combined supporting composition, described rock-bolt length is 1.2 ~ 1.5m, spacing is about 0.5m, pretightning force is 40 ~ 70kN, described anchor cable length 5 ~ 10m, concrete length is chosen according to engineering specifications, spacing is not less than 1/3rd of anchor cable length, generally only be arranged in the top country rock in tunnel, described concrete ejection is no less than 200mm, described intermediate layer is that buffering-absorbing energy layer is mixed according to the ratio of 1:4 by spoil grain and admaic earth, the particle diameter of described spoil grain is 2 ~ 5mm, compressive strength is 20 ~ 50MKa, and described admaic earth is the admaic earth of high plastic limit, low-intensity, low denseness, and its thickness laid is for being no less than 300mm, described innermost layer is by steel mesh reinforcement, sleeper, the O type support of U-shaped steel and energy-absorbing material composition and connecting elements composition, the bar diameter of described steel mesh reinforcement is 3mm, and the aperture of net is not less than 2mm, described sleeper thickness is 15 ~ 25mm, described U-shaped hardness of steel at least uses model for 36U, and its supporting spacing is less than 800mm, and described energy-absorbing material uses porous metal material, the method of concrete supporting, is characterized in that:
First be that bolt-spary supports is carried out to the tunnel dug, namely be first the anchor pole of 1.2 ~ 1.5m by length be that about 0.5m is arranged in country rock with spacing, last sprayed mortar, after the roadway surrounding rock of bolt-spary supports is basicly stable, anchor cable is arranged in the top country rock in tunnel again, reinforcement effect is played to shell;
Then in tunnel, arrange one deck steel mesh reinforcement, make spacing between steel mesh reinforcement and bolt-spary supports at least keep 300mm;
Finally between steel mesh reinforcement and bolt-spary supports, arrange intermediate layer, namely spoil grain and admaic earth are according to the scalemic thereof of 1:4, fill completely, re-lay sleeper, are erected in tunnel by the O type support of connecting elements by U-shaped steel and energy-absorbing material composition simultaneously.
3. deep tunnel buffering-energy-absorbing high resistance power coupling supporting method as claimed in claim 1, described second grade supporting and protection structure, its carrying bump intensity is 30 ~ 50MPa, structure forms by three layers, described outermost layer is that bolt-mesh-spurting supporting is by anchor pole, anchor cable, concrete combined supporting composition, described rock-bolt length is 1.2 ~ 1.5m, spacing is about 0.5m, pretightning force is 40 ~ 70kN, described anchor cable length 5 ~ 10m, concrete length is chosen according to engineering specifications, spacing is not less than 1/3rd of anchor cable length, generally only be arranged in the top country rock in tunnel, described concrete ejection is no less than 200mm, described intermediate layer is that buffering-absorbing energy layer is mixed according to the ratio of 1:4 by spoil grain and admaic earth, the particle diameter of described spoil grain is 2 ~ 5mm, compressive strength is 20 ~ 50MKa, and described admaic earth is the admaic earth of high plastic limit, low-intensity, low denseness, and its thickness laid is for being no less than 400mm, described innermost layer is that mixed layer is made up of contractibility metallic framework and concrete, described contractibility metallic framework is worked out by the reinforcing bar of diameter to be the reinforcing bar of 20mm and diameter be 10mm, wherein diameter is that the reinforcing bar of 20mm is as girder reinforcing bar, diameter is that the reinforcing bar of 10mm is as connecting reinforcement, connecting reinforcement and girder reinforcing bar are woven into triangle by space crossed, main object is that triangle has stability, thus ensures the stability of whole support body, described concrete ejection, on contractibility metallic framework, is connected as a single entity with contractibility metallic framework, and the thickness of injection is not less than 600mm, and the method for concrete supporting, is characterized in that:
First be that bolt-spary supports is carried out to the tunnel dug, namely be first the anchor pole of 1.2 ~ 1.5m by length be that about 0.5m is arranged in country rock with spacing, last sprayed mortar, after the roadway surrounding rock of bolt-spary supports is basicly stable, anchor cable is arranged in the top country rock in tunnel again, reinforcement effect is played to shell;
Then contractibility metallic framework and concrete mixed layer is arranged, the contractibility metallic framework being about to work out is erected in the tunnel after processing above by contractibility metallic framework junction plate, makes spacing between the bolt-spary supports after the good metallic framework of erection and process at least keep 400mm;
Finally between the metallic framework set up and bolt-spary supports, arrange intermediate layer, namely spoil grain and admaic earth are according to the scalemic thereof of 1:4, fill completely, then to contractibility metallic framework sprayed mortar, form steel bar mesh shell liner structure, play final support action.
4. deep tunnel buffering-energy-absorbing high resistance power coupling supporting method as claimed in claim 1, described tertiary gradient supporting and protection structure, its carrying bump intensity is 50 ~ 80MPa, structure forms by three layers, described outermost layer is that bolt-mesh-spurting supporting is by anchor pole, anchor cable, concrete combined supporting composition, described rock-bolt length is 1.2 ~ 1.5m, spacing is about 0.5m, pretightning force is 40 ~ 70kN, described anchor cable length 5 ~ 10m, concrete length is chosen according to engineering specifications, spacing is not less than 1/3rd of anchor cable length, generally only be arranged in the top country rock in tunnel, described concrete ejection thickness is no less than 200mm, described intermediate layer is that buffering-absorbing energy layer is mixed according to the ratio of 1:4 by spoil grain and admaic earth, the particle diameter of described spoil grain is 2 ~ 5mm, compressive strength is 20 ~ 50MKa, and described admaic earth is the admaic earth of high plastic limit, low-intensity, low denseness, and its thickness laid is for being no less than 500mm, described innermost layer is by contractibility metallic framework and concrete mixed layer, the O type support of U-shaped steel and energy-absorbing material composition and connecting elements composition, described contractibility metallic framework is worked out by the reinforcing bar of diameter to be the reinforcing bar of 20mm and diameter be 10mm, wherein diameter is that the reinforcing bar of 20mm is as girder reinforcing bar, diameter is that the reinforcing bar of 10mm is as connecting reinforcement, connecting reinforcement and girder reinforcing bar are woven into triangle by space crossed, main object is that triangle has stability, thus ensure the stability of whole support body, described concrete ejection is on contractibility metallic framework, be connected as a single entity with contractibility metallic framework, the thickness sprayed is not less than 600mm, described U-shaped hardness of steel at least uses model for 36U, its supporting spacing is less than 600mm, described energy-absorbing material uses porous metal material, the method of concrete supporting, it is characterized in that:
First be that bolt-spary supports is carried out to the tunnel dug, namely be first the anchor pole of 1.2 ~ 1.5m by length be that about 0.5m is arranged in country rock with spacing, last sprayed mortar, after the roadway surrounding rock of bolt-spary supports is basicly stable, anchor cable is arranged in the top country rock in tunnel again, reinforcement effect is played to shell;
Then contractibility metallic framework and concrete mixed layer is arranged, the contractibility metallic framework being about to work out is erected in the tunnel after processing above by contractibility metallic framework junction plate, makes spacing between the bolt-spary supports after the good metallic framework of erection and process at least keep 500mm;
Finally between metallic framework and bolt-spary supports, arrange buffering-absorbing energy layer, namely spoil grain and admaic earth are according to the scalemic thereof of 1:4, fill completely, again to contractibility metallic framework sprayed mortar, form steel bar mesh shell liner structure, be erected in tunnel by the O type support of connecting elements by U-shaped steel and energy-absorbing material composition simultaneously.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673040A (en) * | 2016-03-10 | 2016-06-15 | 安徽理工大学 | Bearing system of deep well high-stress roadway surrounding rock enhanced support and application of bearing system |
| CN107100652A (en) * | 2017-05-19 | 2017-08-29 | 中国矿业大学(北京) | A kind of compliant impact resistant method for protecting support and device |
| CN109956142A (en) * | 2019-04-09 | 2019-07-02 | 大连理工大学 | A kind of liquid reserve tank and its numerical computation method of band filling cylinder energy-dissipating structure |
| CN110645013A (en) * | 2019-11-12 | 2020-01-03 | 哈尔滨工业大学 | Tunnel shock-absorbing structure capable of being quickly repaired after earthquake |
| CN111219199A (en) * | 2020-01-14 | 2020-06-02 | 中国建筑第五工程局有限公司 | Arch frame yielding support structure and construction method |
| CN111577343A (en) * | 2020-04-10 | 2020-08-25 | 北京科技大学 | Multifunctional mining surrounding rock impact vibration shielding structure and method |
| CN112523776A (en) * | 2020-11-23 | 2021-03-19 | 安徽理工大学 | Thin bedrock supporting construction |
| CN114483086A (en) * | 2022-04-01 | 2022-05-13 | 中国矿业大学(北京) | Energy-absorbing composite supporting system for protective tunnel |
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2015
- 2015-03-23 CN CN201510128846.8A patent/CN104847381A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673040A (en) * | 2016-03-10 | 2016-06-15 | 安徽理工大学 | Bearing system of deep well high-stress roadway surrounding rock enhanced support and application of bearing system |
| CN107100652A (en) * | 2017-05-19 | 2017-08-29 | 中国矿业大学(北京) | A kind of compliant impact resistant method for protecting support and device |
| CN107100652B (en) * | 2017-05-19 | 2023-11-17 | 中国矿业大学(北京) | Flexible impact-resistant supporting method and device |
| CN109956142A (en) * | 2019-04-09 | 2019-07-02 | 大连理工大学 | A kind of liquid reserve tank and its numerical computation method of band filling cylinder energy-dissipating structure |
| CN109956142B (en) * | 2019-04-09 | 2020-11-13 | 大连理工大学 | Liquid storage tank with filling cylindrical energy dissipation structure and numerical calculation method thereof |
| CN110645013A (en) * | 2019-11-12 | 2020-01-03 | 哈尔滨工业大学 | Tunnel shock-absorbing structure capable of being quickly repaired after earthquake |
| CN111219199A (en) * | 2020-01-14 | 2020-06-02 | 中国建筑第五工程局有限公司 | Arch frame yielding support structure and construction method |
| CN111577343A (en) * | 2020-04-10 | 2020-08-25 | 北京科技大学 | Multifunctional mining surrounding rock impact vibration shielding structure and method |
| CN112523776A (en) * | 2020-11-23 | 2021-03-19 | 安徽理工大学 | Thin bedrock supporting construction |
| CN112523776B (en) * | 2020-11-23 | 2022-03-08 | 安徽理工大学 | Thin bedrock supporting construction |
| CN114483086A (en) * | 2022-04-01 | 2022-05-13 | 中国矿业大学(北京) | Energy-absorbing composite supporting system for protective tunnel |
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