CN103711507A - Method for controlling deformation of large broken rock zone roadway by using multi-steel stranded wire combined supporting device - Google Patents
Method for controlling deformation of large broken rock zone roadway by using multi-steel stranded wire combined supporting device Download PDFInfo
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- CN103711507A CN103711507A CN201310643840.5A CN201310643840A CN103711507A CN 103711507 A CN103711507 A CN 103711507A CN 201310643840 A CN201310643840 A CN 201310643840A CN 103711507 A CN103711507 A CN 103711507A
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- 239000011435 rock Substances 0.000 title claims abstract description 81
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 79
- 239000010959 steel Substances 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 238000004873 anchoring Methods 0.000 claims abstract description 7
- 239000002002 slurry Substances 0.000 claims description 19
- 239000004567 concrete Substances 0.000 claims description 11
- 239000011440 grout Substances 0.000 claims description 10
- 239000004568 cement Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 3
- 238000007596 consolidation process Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 claims description 2
- 210000003205 muscle Anatomy 0.000 claims description 2
- 238000007569 slipcasting Methods 0.000 abstract description 3
- 230000001483 mobilizing effect Effects 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 239000011378 shotcrete Substances 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The invention relates to a method for controlling deformation of a large broken rock zone roadway by using a multi-steel stranded wire combined supporting device. The method includes the steps of determining damage conditions of surrounding rock of the roadway by combining various methods, building a roadway surrounding rock shallow portion bearing ring through anchoring and shotcreting combined support, and mobilizing deep portion elastic-state surrounding rock bearing capacity through the multi-steel stranded wire combined supporting device. The multi-steel stranded wire combined supporting device is divided into an anchoring section, a free section, a sealing section and an exposed section. By the method, high supporting strength and deep supporting range can be realized at the same time, and the shallow portion bearing ring and deep portion elastic-state surrounding rock are connected into a whole; original elongation rate is still maintained after slip casting of steel stranded wires, and the method is suitable for continuous long-time nonlinear deformation of the surrounding rock; by using the method to perform surrounding rock reinforcement control on the large broken rock zone, long-time stability of the roadway can be realized, engineering quantity in multiple rebuilding of the roadway can be reduced, and the method has wide practicability.
Description
Technical field
the present invention relates to the control technology that large relaxation zone roadway surrounding rock is non-linear, continue large deformation, especially control large relaxation zone roadway surrounding rock continuously, when long, a kind of many steel strand combination supporting device of nonlinear deformation controls the method for large relaxation zone roadway deformation.
Background technology
downward along with the coal mining degree of depth, the rock mass that equality strength, superficial part show as hard rock shows the character of soft rock under high-level stress of primary rock effect, after repeatedly dynamic pressure affects, many developings, preparatory working develop into large relaxation zone (the local 5m of surpassing) tunnel one after another, surrouding rock deformation has continuously, when long, non-linear feature, repeatedly repair in the time of still can not keeping long stable.Modern rock mechanics and support theory are emphasized to be interacted and form unified bearing structure with portion's reinforcing within it or EXS supporting and protection structure by country rock, give full play to the supporting capacity of country rock to control and to allow the finite deformation of country rock.Control for large relaxation zone roadway surrounding rock, tradition passive protecting all no longer adapts to large relaxation zone roadway deformation feature on supporting theory and supporting intensity, and existing active support technology and means are being transferred its deep elastic state bearing capacity of the wall rock and adapted to strong dynamic pressure impact and country rock all shows obvious deficiency continuously aspect long non-linear hour distortion: bolt support is subject to the body of rod length restriction can only be to superficial part breaking surrounding rock formation reinforcing; Monomer anchor cable, grouting cable anchor are limited by length and intensity, and the degree of transferring deep elastic state bearing capacity of the wall rock is limited, and long non-linear hour deformability is poor continuously to adapt to the strong dynamic pressure impact in deep and country rock; Though grouting and reinforcing can be strengthened country rock performance, rationally under grouting pressure, slurries diffusion is difficult to touch elastic region, country rock deep, and concretion body strength depends on by note medium bulk strength and destructiveness, and the lower easy generation of dynamic pressure impact is broken again.In sum, existing support technology fail effectively to control the large relaxation zone roadway surrounding rock in deep continuously long non-linear hour distortion be at all constructed country rock bearing structure and surrouding rock deformation feature incompatible, the safety in such tunnel is having a strong impact on the safety and high efficiency of deep coal.
Summary of the invention
in order to solve the deficiency of traditional passive protecting and existing active support technology, compliance for large relaxation zone roadway surrounding rock bearing structure and surrouding rock deformation Evolution, the invention provides a kind of many steel strand combination supporting device and control the method for large relaxation zone roadway deformation, the method is noted combined supporting structure country rock superficial part carrier ring by shotcrete, and to deep wall rock, distortion provides higher Radial resistant force; Many steel strand combination supporting device relies on from the advantage in length and intensity, and superficial part carrier ring and deep elastic state country rock are connected as a single entity, and has transferred preferably deep elastic state bearing capacity of the wall rock; After slurries have been guaranteed " anchor note is integrated " with the isolation of steel strand in many steel strand combination supporting device free segment, steel strand still keep original elongation per unit length, and continuous long non-linear hour that can suitable for surrounding rock is out of shape.
the technical solution adopted for the present invention to solve the technical problems is: a kind of many steel strand combination supporting device is controlled the method for large relaxation zone roadway deformation, and it is as follows that it controls step:
step 1, determines that roadway surrounding rock destroys situation, after tunnel is stood repeatedly dynamic pressure impact and gross distortion occurs and is tended towards stability, by boring spy on, the several different methods such as ultrasonic tesint combines definite Exploring Loose Rock Country in Tunnels maximum radius R
1
with plastic zone maximum radius R
2
;
step 2, build roadway surrounding rock superficial part carrier ring, expand brush tunnel to design size, adopt anchor pole, wire lath, steel band, grouted anchor bar to carry out " anchor guipure " combined supporting, sprayed mortar A seals country rock, starts upwards to grouted anchor bar, to inject slurries B successively country rock is carried out to Shallow hole grouting after concrete grout layer maintenance 7d by tunnel footing;
step 3, transfer deep elastic state bearing capacity of the wall rock, utilize rig C construction drill, many steel strand combination supporting device is installed, connect Grouting Pipe injection slurries B many steel strand combination supporting device is carried out to anchoring, country rock is carried out to deep hole grouting, synchronous tension lock many steel strand after slurries B stabilization by consolidation simultaneously.
described relaxation zone maximum radius R
1
meet relational expression " R with equivalence excavation radius R
1
-R>=2000mm " time, utilize said method to control deformation of the surrounding rock in tunnel comparatively reasonable, otherwise easily cause roadway support intensity superfluous;
described anchor pole is the vertical muscle high-strength deformed steel bar anchor pole of the left-handed nothing of high strength, diameter of phi
1
=20 ~ 25mm, length L
1
=2400 ~ 3000mm, spacing m
1
=800 ~ 1000mm, array pitch n
1
=800 ~ 1000mm, pre-fastening moment M>=300Nm; Described wire lath is welded by 6mm reinforcing bar, and grid specification is 100 * 100mm; Described steel band model is GRT-M4; Described grouted anchor bar is common hollow grouting anchor, diameter of phi
2
=20 ~ 25mm, length L
2
=2400 ~ 3000mm, spacing m
2
=m
1
, array pitch n
2
=2n
1
, be arranged in the middle of two row's anchor poles grouting pressure P
1
≤ 1.5MPa;
the proportioning of described Concrete is cement: yellow sand: stone=1:2:2; Described slurries B adopts chemical grout when country rock is mud stone, under general condition, adopts 525
#
quick hardening sulphoaluminate cement slurries, water/binder ratio is 0.85 ~ 1.0; Described concrete grout layer thickness H=100mm;
described many steel strand combination supporting device is divided into anchoring section, free segment, seal section and revealed section; This suspension device comprises steel strand, garter spring, steel strand sleeve pipe, round table-like sealing of hole gum cover, porous lockset, supporting plate, auricle formula seal rubber sleeve, Grouting Pipe, the center of described steel strand is provided with Grouting Pipe, steel strand periphery is provided with garter spring, and peripheral the coincideing of steel strand that is positioned at suspension device free segment is set with steel strand sleeve pipe, makes steel strand and slurries isolation; Peripheral the coincideing of steel strand that is positioned at suspension device seal section is set with auricle formula seal rubber sleeve and round table-like sealing of hole gum cover, and the steel strand of revealed section are fastened on the supporting plate that is provided with setscrew hole by porous lockset;
the length L of described many steel strand combination supporting device and plastic zone maximum radius R
2
should meet relational expression " 3000mm>=L-R
2
>=2000mm ", spacing m
3
=2000mm, array pitch n
3
=2n
1
, be arranged in the middle of the high-strength prestressed anchor pole of two rows grouting pressure P
2
≤ 2MPa; Described rig C is ZL-500 colliery underground drill rig; Described boring hole depth L
0
should meet relational expression " L with the length L of many steel strand combination supporting device
0
≈ L-200mm ", aperture R
0
radial dimension and bit model by many steel strand combination supporting device determine jointly.
the invention has the beneficial effects as follows: distortion provides higher Radial resistant force to deep wall rock by shotcrete, to note combined supporting structure country rock superficial part carrier ring; Many steel strand combination supporting device relies on from the advantage in length and intensity, and superficial part carrier ring and deep elastic state country rock are connected as a single entity, and has transferred preferably deep elastic state bearing capacity of the wall rock; After slurries have been guaranteed " anchor note is integrated " with the isolation of steel strand in many steel strand combination supporting device free segment, steel strand still keep original elongation per unit length, and continuous long non-linear hour that can suitable for surrounding rock is out of shape.
Accompanying drawing explanation
fig. 1 is that large relaxation zone roadway surrounding rock destroys situation schematic diagram;
fig. 2 is large relaxation zone tunnel " country rock-supporting " structural representation;
fig. 3 is the country rock surface tiling schematic diagram that tunnel shown in Fig. 2 " country rock-supporting " structure is as the criterion with top board center line;
fig. 4 is the structural representation of the combination supporting of many steel strand shown in Fig. 2 device 6.
in figure: 1. anchor pole, 2. wire lath, 3. steel band, 4. grouted anchor bar, 5. concrete grout layer, 6. more than steel strand combination supporting device, 6-1. steel strand, 6-2. garter spring, 6-3. steel strand sleeve pipe, the round table-like sealing of hole gum cover of 6-4., 6-5. porous lockset, 6-6. supporting plate, 6-7. auricle formula seal rubber sleeve, 6-8. Grouting Pipe, 7. boring.
The specific embodiment
in the drawings, a kind of many steel strand combination supporting device is controlled the method for large relaxation zone roadway deformation, and implementation step comprises: by several different methods, combined and determined that roadway surrounding rock destroys situation; By " shotcrete note " combined supporting, build roadway surrounding rock superficial part carrier ring; By many steel strand combination supporting device, transfer deep elastic state bearing capacity of the wall rock; Concrete implementation step is as follows:
1. in Fig. 1, determine that roadway surrounding rock destroys situation
after tunnel is stood repeatedly dynamic pressure impact and gross distortion occurs and is tended towards stability, by full section boring spy on, the several different methods such as ultrasonic tesint combines and determines Exploring Loose Rock Country in Tunnels maximum radius R
1
with plastic zone maximum radius R
2.
2. in Fig. 2, Fig. 3, build roadway surrounding rock superficial part carrier ring
2.1. determine the detail parameters of superficial part country rock " shotcrete note " combined supporting; According to roadway surrounding rock, destroy situation the length of anchor pole 1, grouted anchor bar 4, diameter and an array pitch are made to choose reasonable; The length L of anchor pole 1
1
=2400 ~ 3000mm should be greater than numerical value " R as far as possible
1
-R ", diameter of phi
1
=20 ~ 25mm increases with the increasing of rock crusher degree, spacing m
1
=800 ~ 1000mm and array pitch n
1
=800 ~ 1000mm reduces with the increasing of rock crusher degree; The length L of grouted anchor bar 4
2
≈ L
1
, diameter of phi
2
=20 ~ 25mm increases with the increasing of rock crusher degree;
2.2 expand drift section to brush to design size, according to design parameters, carry out bolt net bar supporting construction, and wire lath 2 is welded by 6mm reinforcing bar, and grid specification is 100 * 100mm; Steel band 3 models are GRT-M4; Grouted anchor bar 4 hysteresis anchor pole 1 constructions, the pre-fastening moment M>=300Nm of anchor pole 1;
2.3 sprayed mortar A enclosing tunnel country rocks, the proportioning of Concrete is cement: yellow sand: stone=1:2:2, the thickness H=100mm of concrete grout layer 5;
2.4 pairs of concrete grout layers 5 are sprinkled water after maintenance 7d, start upwards to grouted anchor bar 4, to inject slurries B successively country rock is carried out to Shallow hole grouting by tunnel footing, treat grouting pressure P
1
after reaching 1.5MPa, stop slip casting; Wherein, slurries B adopts chemical grout when roadway surrounding rock is mud stone, under general condition, adopts 525
#
quick hardening sulphoaluminate cement slurries, water/binder ratio is 0.85 ~ 1.0.
3. in Fig. 2, Fig. 4, transfer deep elastic state bearing capacity of the wall rock
3.1 determine steel strand radical, the length L of many steel strand combination supporting device 6, the degree of depth L of boring 7 according to surrounding rock failure situation
0
with aperture R
0
; Steel strand radical (3 ~ 5) is determined according to the size of country rock superficial part carrier ring bearing load follow the combined strength of steel strand need be greater than the suffered load of country rock superficial part carrier ring more; Length L and plastic zone maximum radius R
2
meet relational expression " 3000mm>=L-R
2
>=2000mm "; The degree of depth L of boring 7
0
≈ L-200mm, aperture R
0
by the radial dimension of many steel strand combination supporting device 6 and the bit model of rig C, jointly determined;
3.2 construction drills 7 are also installed many steel strand combination supporting device 6; Adopt rig C (ZL-500 colliery underground drill rig) construction drill 7; At the bottom of relying on manpower progressively many steel strand combination supporting device 6 to be pushed into hole, and by auricle formula seal rubber sleeve 6-7 and round table-like sealing of hole gum cover 6-4 (the two size all with aperture R
0
match, and all there is good elasticity) clamp-on in hole, make the large end face of round table-like sealing of hole gum cover 6-4 concordant with country rock surface, rapidly supporting plate 6-6 is close to country rock through the exposed junction of steel strand 6-1, by the setscrew hole on supporting plate 6-6, fixedly supporting plate 6-6 of setscrew is installed, and then fixing a whole set of many steel strand combination supporting device 6;
3.3 connect grouting pipeline injection slurries B by Grouting Pipe 6-8 carries out anchoring to many steel strand combination supporting device 6, country rock is carried out to deep hole grouting simultaneously, treats grouting pressure P
2
after reaching 2MPa, stop slip casting;
3.4 stretch-draw and locking, after slurries B stabilization by consolidation, utilize anchorage cable stretching equipment, porous lockset 6-5 synchronous tension and lock many steel strand 6-1.
Claims (6)
1.
many steel strand combination supporting device is controlled a method for large relaxation zone roadway deformation, it is characterized in that:
step 1, determine that roadway surrounding rock destroys situation, after tunnel is stood repeatedly dynamic pressure impact and gross distortion occurs and is tended towards stability, by boring spy on, the several different methods such as ultrasonic tesint combines definite Exploring Loose Rock Country in Tunnels maximum radius R
1
with plastic zone maximum radius R
2
;
step 2, structure roadway surrounding rock superficial part carrier ring, expand brush tunnel to design size, adopt anchor pole (1), wire lath (2), steel band (3), grouted anchor bar (4) to carry out " anchor guipure " combined supporting, sprayed mortar A seals country rock, starts upwards to grouted anchor bar (4), to inject slurries B successively country rock is carried out to Shallow hole grouting after concrete grout layer (5) maintenance 7d by tunnel footing;
step 3, transfer deep elastic state bearing capacity of the wall rock, utilize rig C construction drill (7), many steel strand combination supporting device (6) is installed, connect Grouting Pipe (6-8) injection slurries B many steel strand combination supporting device (6) is carried out to anchoring, country rock is carried out to deep hole grouting, synchronous tension lock many steel strand (6-1) after slurries B stabilization by consolidation simultaneously.
2.
a kind of many steel strand combination supporting device according to claim 1 is controlled the method for large relaxation zone roadway deformation, it is characterized in that: described relaxation zone maximum radius R 1 meet relational expression " R with equivalence excavation radius R 1 -R>=2000mm " time, utilize method described in claim 1 to control deformation of the surrounding rock in tunnel comparatively reasonable, otherwise easily cause roadway support intensity superfluous.
3.
a kind of many steel strand combination supporting device according to claim 1 is controlled the method for large relaxation zone roadway deformation, it is characterized in that: described anchor pole (1) is the vertical muscle high-strength deformed steel bar anchor pole of the left-handed nothing of high strength, diameter of phi 1 =20 ~ 25mm, length L 1 =2400 ~ 3000mm, spacing m 1 =800 ~ 1000mm, array pitch n 1 =800 ~ 1000mm, pre-fastening moment M>=300Nm; Described wire lath (2) is welded by 6mm reinforcing bar, and grid specification is 100 * 100mm; Described steel band (3) model is GRT-M4; Described grouted anchor bar (4) is common hollow grouting anchor, diameter of phi 2 =20 ~ 25mm, length L 2 =2400 ~ 3000mm, spacing m 2 =m 1 , array pitch n 2 =2n 1 , be arranged in the middle of two row's anchor poles (1) grouting pressure P 1 ≤ 1.5MPa.
4.
a kind of many steel strand combination supporting device according to claim 1 is controlled the method for large relaxation zone roadway deformation, it is characterized in that: the proportioning of described Concrete is cement: yellow sand: stone=1:2:2; Described slurries B adopts chemical grout when country rock is mud stone, under general condition, adopts 525 # quick hardening sulphoaluminate cement slurries, water/binder ratio is 0.85 ~ 1.0; Described concrete grout layer (5) thickness H=100mm.
5.
a kind of many steel strand combination supporting device according to claim 1 is controlled the method for large relaxation zone roadway deformation, it is characterized in that: described many steel strand combination supporting device (6) is divided into anchoring section, free segment, seal section and revealed section; This suspension device comprises steel strand (6-1), garter spring (6-2), steel strand sleeve pipe (6-3), round table-like sealing of hole gum cover (6-4), porous lockset (6-5), supporting plate (6-6), auricle formula seal rubber sleeve (6-7), Grouting Pipe (6-8), the center of described steel strand (6-1) is provided with Grouting Pipe (6-8), steel strand (6-1) periphery is provided with garter spring (6-2), and peripheral the coincideing of steel strand (6-1) that is positioned at suspension device free segment is set with steel strand sleeve pipe (6-3); Peripheral the coincideing of steel strand (6-1) that is positioned at suspension device seal section is set with auricle formula seal rubber sleeve (6-7) and round table-like sealing of hole gum cover (6-4), and the steel strand of revealed section (6-1) are fastened on (6-6) on the supporting plate that is provided with setscrew hole by porous lockset (6-5).
6.
a kind of many steel strand combination supporting device according to claim 1 is controlled the method for large relaxation zone roadway deformation, it is characterized in that: the length L of described many steel strand combination supporting device (6) and plastic zone maximum radius R 2 should meet relational expression " 3000mm>=L-R 2 >=2000mm ", spacing m 3 =2000mm, array pitch n 3 =2n 1 , be arranged in the middle of the high-strength prestressed anchor pole of two rows (1) grouting pressure P 2 ≤ 2MPa; Described rig C is ZL-500 colliery underground drill rig; The hole depth L of described boring (7) 0 should meet relational expression " L-L with the length L of many steel strand combination supporting device (6) 0 ≈ 200mm ", aperture R 0 radial dimension and bit model by many steel strand combination supporting device (6) determine jointly.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310643840.5A CN103711507B (en) | 2013-12-05 | 2013-12-05 | A kind of many steel strand wires combination supporting device controls the method for big relaxation zone roadway deformation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310643840.5A CN103711507B (en) | 2013-12-05 | 2013-12-05 | A kind of many steel strand wires combination supporting device controls the method for big relaxation zone roadway deformation |
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|---|---|
| CN103711507A true CN103711507A (en) | 2014-04-09 |
| CN103711507B CN103711507B (en) | 2016-10-19 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134249A (en) * | 2015-10-09 | 2015-12-09 | 重庆工程职业技术学院 | Gradual support method for large broken rock zone tunnel of mine |
| CN107133381A (en) * | 2017-04-01 | 2017-09-05 | 中国矿业大学 | A kind of length determining method of roadway support anchor pole |
| CN107420122A (en) * | 2017-06-21 | 2017-12-01 | 湖北宜化江家墩矿业有限公司 | A kind of two way alternate formula grouting water technology for being used to administer roadway aproll |
| CN108509746A (en) * | 2018-04-16 | 2018-09-07 | 辽宁工程技术大学 | A kind of Exploring Loose Rock Country in Tunnels method of determining range |
| CN109736850A (en) * | 2019-03-04 | 2019-05-10 | 河南理工大学 | A kind of tunnel shell arch combination strength bearing structure and its construction method |
| CN110566226A (en) * | 2019-08-30 | 2019-12-13 | 河南理工大学 | shallow-consolidation deep-injection supporting method for rapid excavation of broken roof large-section roadway |
| CN112345647A (en) * | 2021-01-05 | 2021-02-09 | 中南大学 | Surrounding rock loosening ring test method |
| CN114439545A (en) * | 2022-01-27 | 2022-05-06 | 成都理工大学 | Extremely high stress large deformation difference unloading deformation blocking method |
| CN116658219A (en) * | 2023-08-02 | 2023-08-29 | 阳泉市广凯机械制造有限公司 | Anchor cable prestress control device and application method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB808509A (en) * | 1956-02-01 | 1959-02-04 | Hadfields Ltd | Improvements in and relating to strata bolts |
| KR20020042404A (en) * | 2001-08-29 | 2002-06-05 | 박병구 | Disjointable fixing apparatus of tension material and Removal method of tension material |
| CN102953743A (en) * | 2012-09-02 | 2013-03-06 | 山东科技大学 | Intelligent control resistance increasing large-deformation anchor rod and application method thereof |
-
2013
- 2013-12-05 CN CN201310643840.5A patent/CN103711507B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB808509A (en) * | 1956-02-01 | 1959-02-04 | Hadfields Ltd | Improvements in and relating to strata bolts |
| KR20020042404A (en) * | 2001-08-29 | 2002-06-05 | 박병구 | Disjointable fixing apparatus of tension material and Removal method of tension material |
| CN102953743A (en) * | 2012-09-02 | 2013-03-06 | 山东科技大学 | Intelligent control resistance increasing large-deformation anchor rod and application method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 刘红岗: "大松动圈围岩锚注与预应力锚索联合支护技术的机理与实践", 《中国矿业》, vol. 16, no. 1, 15 January 2007 (2007-01-15), pages 62 - 65 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134249B (en) * | 2015-10-09 | 2017-10-13 | 重庆工程职业技术学院 | The big gradual method for protecting support in relaxation zone tunnel of mine |
| CN105134249A (en) * | 2015-10-09 | 2015-12-09 | 重庆工程职业技术学院 | Gradual support method for large broken rock zone tunnel of mine |
| CN107133381A (en) * | 2017-04-01 | 2017-09-05 | 中国矿业大学 | A kind of length determining method of roadway support anchor pole |
| CN107133381B (en) * | 2017-04-01 | 2020-11-06 | 中国矿业大学 | Method for determining length of anchor rod for roadway support |
| CN107420122A (en) * | 2017-06-21 | 2017-12-01 | 湖北宜化江家墩矿业有限公司 | A kind of two way alternate formula grouting water technology for being used to administer roadway aproll |
| CN108509746A (en) * | 2018-04-16 | 2018-09-07 | 辽宁工程技术大学 | A kind of Exploring Loose Rock Country in Tunnels method of determining range |
| CN109736850B (en) * | 2019-03-04 | 2023-08-22 | 河南理工大学 | Roadway shell and arch combined strong bearing structure and construction method thereof |
| CN109736850A (en) * | 2019-03-04 | 2019-05-10 | 河南理工大学 | A kind of tunnel shell arch combination strength bearing structure and its construction method |
| CN110566226A (en) * | 2019-08-30 | 2019-12-13 | 河南理工大学 | shallow-consolidation deep-injection supporting method for rapid excavation of broken roof large-section roadway |
| CN112345647B (en) * | 2021-01-05 | 2021-04-23 | 中南大学 | Surrounding rock loosening ring test method |
| CN112345647A (en) * | 2021-01-05 | 2021-02-09 | 中南大学 | Surrounding rock loosening ring test method |
| CN114439545A (en) * | 2022-01-27 | 2022-05-06 | 成都理工大学 | Extremely high stress large deformation difference unloading deformation blocking method |
| CN114439545B (en) * | 2022-01-27 | 2023-02-28 | 成都理工大学 | Extremely high stress large deformation difference unloading deformation blocking method |
| CN116658219A (en) * | 2023-08-02 | 2023-08-29 | 阳泉市广凯机械制造有限公司 | Anchor cable prestress control device and application method |
| CN116658219B (en) * | 2023-08-02 | 2023-10-13 | 阳泉市广凯机械制造有限公司 | Anchor cable prestress control device and application method |
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| Publication number | Publication date |
|---|---|
| CN103711507B (en) | 2016-10-19 |
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