CN103774653A - Linear shaped charge blasting grouting and anchoring tubular anchor bar - Google Patents
Linear shaped charge blasting grouting and anchoring tubular anchor bar Download PDFInfo
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- CN103774653A CN103774653A CN201210412801.XA CN201210412801A CN103774653A CN 103774653 A CN103774653 A CN 103774653A CN 201210412801 A CN201210412801 A CN 201210412801A CN 103774653 A CN103774653 A CN 103774653A
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Abstract
The invention relates to a linear shaped charge blasting grouting and anchoring tubular anchor bar. The linear shaped charge blasting grouting and anchoring tubular anchor bar comprises a hollow tubular bar body with the two ends open, a blocking ring and a cushion plate. A plurality of rectangular notches are distributed in the pipe wall of the tubular bar body in different positions and in different directions, and the top end of the tubular bar body is filled with stemming and provided with the blocking ring with the cushion plate. An igniting primer provided with a blasting cap is arranged in the pipe wall of the bottom end of the tubular bar body. The portions, provided with the rectangular notches, of the pipe wall are internally provided with linear shaped charge blasting pieces. The linear shaped charge blasting grouting and anchoring tubular anchor bar is simple in structure, convenient to construct, low in cost and capable of providing anchoring force and having the instant anchoring effect; meanwhile, a traditional anchoring load transmitting mechanism is thoroughly changed, and a friction-plug novel composite anchoring and grouting reinforcing comprehensive supporting system is constructed.
Description
Technical field
The present invention relates to rock-reinforcing support technology field, relate in particular to linear cavity energy explosion slip casting anchoring pipe anchor rod.
Background technology
Ground anchorage is by being embedded in the anchor pole in stratum, stratum is locked together tightly, rely on the interaction of anchor pole-injecting cement paste-hole wall ground muscle power, transfer and improve self intensity and self-stable ability of Rock And Soil, improve by the stress state of anchoring Rock And Soil to make it stable, thereby guarantee the technology of engineering safety.The engineering application of Anchorage Technology came from for 19 end of the centurys, along with the development of its theoretical research and technology, the fields such as mine, water conservancy, water power, highway, railway, municipal administration, urban construction, geology, military project are now widely used in, as a kind of comparatively desirable support form, in underground construction, slope project, deep-foundation pit engineering etc. stable, play a significant role.Slip casting is also called grouting, it is that certain material formulation is become to slurries, is poured in stratum or crack and makes its diffusion, gelling or curing with force feed equipment, also can reach the object of strengthening stratum, as reinforcing one of important measures at Rock And Soil, its application is increasingly extensive.
Ground anchorage and slip casting are not only subject to the impact of formation lithology, Rock-soil Mass Structure, geological structure, hydrogeology etc., also may be subject to the effect of violent earthquake, and they all constitute a threat to the safety of ground anchorage and slip casting.
During the construction and operation of ground anchorage, anchor pole is extracted from injecting cement paste, anchor pole is extracted from anchor hole together with injecting cement paste is two kinds of ground anchorage mode of failure the most basic, and they all can cause ground anchorage to lose efficacy, and bring hidden danger to engineering safety.In order to ensure engineering safety, must limit the anchored force of anchor pole.When the anchored force that provides when needs is larger, common bolt anchoring can not meet the needs of engineering, this restricts the application and development of Anchorage Technology undoubtedly, how to improve the load pass through mechanism of ground anchorage, overcome the drawback of common bolt anchoring, improve anchor-holding force of anchor bolt, the measure of integrated use rock-reinforcing, strengthening the stability of Rock And Soil, is the fundamental way that promotes rock-reinforcing technical development.
In addition, before injecting cement paste in ground anchorage is fixed, almost can not provide anchored force, provide immediately the requirement of anchored force therefore can not adapt to requirement after weak rocks soil body excavation.Although existing pipe-seam type anchor rod overcomes to some extent to above-mentioned shortcoming, after rockbolt installation, can provide immediately anchored force, be conducive to control in time the distortion of Rock And Soil, the anchored force that can provide is little; Meanwhile, because soft rock-soil cognition is clamp-oned tube chamber from the pipe seam of pipe-seam type anchor rod, also the further decline of anchored force will be caused.
Summary of the invention
Technical problem to be solved by this invention is to provide one can provide anchored force to control Rock And Soil distortion immediately, improve the load pass through mechanism of ground anchorage simultaneously, and Rock And Soil is carried out to grouting and reinforcing, to improve anchor-holding force of anchor bolt and the linear cavity energy explosion slip casting anchoring pipe anchor rod that improves anchoring effect and enhancing Rock And Soil intensity, stability.
For addressing the above problem, linear cavity energy explosion slip casting anchoring pipe anchor rod of the present invention, is characterized in that: it comprises the tubular type body of rod and baffle ring and the backing plate of both ends open, hollow; Multiple rectangular cutout that distributing in the diverse location of described tubular type body of rod tube wall and direction, its top is filled stemming and is also provided with the described baffle ring with described backing plate; In the tube wall of described tubular type body of rod bottom, be provided with the igniting primer that detonator is housed; Be provided with in the described tube wall of described rectangular cutout and be provided with layout of linear shaped charge.
Described detonator is connected with detonator payment to a porter.
Sockets for collecting energy in described layout of linear shaped charge is linear, and this sockets for collecting energy is just to described rectangular cutout.
In described sockets for collecting energy, be inlaid with the linear cavity liner with its same shape.
The present invention compared with prior art has the following advantages:
1, in the tube wall due to the tubular type body of rod in the present invention, igniting primer and layout of linear shaped charge that detonator has been installed are housed.First, the blast of igniting primer and layout of linear shaped charge in anchor rod body, produces strong effect to tube wall, make tubular type body of rod generation plastic strain, cause tube wall radial dilatation extruding Rock And Soil, anchored force can be provided immediately, stop the relative sliding of Rock And Soil and anchor pole, reach the effect of anchoring at once, the particularly important is, the layout of linear shaped charge energy-gathering jetting producing that explodes, there is high pressure, speed and energy density, the directly Rock And Soil impact compress consumingly to the right boring wall of the rectangular cutout of tubular type body of rod tube wall, greatly strengthen the effect of explosive charge to Rock And Soil by layout of linear shaped charge, cause hole wall Rock And Soil to be pulverized, in Rock And Soil, form linear cavity energy explosion cutting seam, by the linear cavity energy explosion cutting seam forming, by tubular type body of rod tube chamber to Rock And Soil slip casting, not only can grouting and reinforcing Rock And Soil, and the injecting cement paste of filling in tubular type body of rod tube chamber and linear cavity energy explosion cutting seam is by the formation anchoring that is connected as a single entity of the rectangular cutout on tubular type body of rod tube wall, the tubular type body of rod and Rock And Soil are combined closely, that is by the slip casting of linear cavity energy explosion cutting seam, form to Rock And Soil grouting and reinforcing time the injecting cement paste in linear cumulative charge seam by tubular type body of rod embolism among boring and make it anchoring, fundamentally change traditional anchoring load pass through mechanism, the NEW TYPE OF COMPOSITE anchoring of friction-embolism and grouting and reinforcing comprehensive support system are built, improve significantly rock-reinforcing effect, transfer better the self-stable ability of Rock And Soil, thereby improve the stability of Rock And Soil, the safety of geotechnical engineering is greatly enhanced.
2, the present invention simple in structure, be convenient to processing, easy construction, with low cost, can speed up the work significantly, improve rock-reinforcing effect.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is structural representation of the present invention.
Fig. 2 is powder charge shaft section figure schematic diagram before explosion of the present invention.
Fig. 3 is the tubular type body of rod and rectangular cutout schematic diagram before explosion of the present invention.
Fig. 4 is layout of linear shaped charge schematic diagram of the present invention.
Fig. 5 is layout of linear shaped charge cross-sectional view schematic diagram of the present invention.
Fig. 6 is the linear cavity liner schematic diagram of the present invention.
Fig. 7 is the layout of linear shaped charge cross sectional representation of the linear cavity liner of band of the present invention.
In figure: 1-Rock And Soil, 2-injecting cement paste 3-boring, 4-tubular type body of rod, 5-tubular type body of rod bottom 6-slip casting embolism, 7-baffle ring, 8-backing plate, 9-igniting primer, 10-detonator, 11-detonator payment to a porter, 12-layout of linear shaped charge, 13-stemming, 14-tube wall, 15-rectangular cutout, 16-linear cavity energy explosion cutting seam, 17-sockets for collecting energy 18-linear cavity liner.
The specific embodiment
As shown in Fig. 1 ~ 7, linear cavity energy explosion slip casting anchoring pipe anchor rod, it comprises the tubular type body of rod 4 and baffle ring 7 and the backing plate 8 of both ends open, hollow.Multiple rectangular cutout 15 that distributing in the diverse location of the tubular type body of rod 4 tube walls 14 and direction, its top is filled stemming 13 and is also provided with the baffle ring 7 with backing plate 8; In the tube wall 14 of tubular type body of rod bottom 5, be provided with the igniting primer 9 that detonator 10 is housed; Be provided with in the tube wall 14 of rectangular cutout 15 and be provided with layout of linear shaped charge 12.
Wherein: detonator 10 is connected with detonator payment to a porter 11.
Sockets for collecting energy 17 in layout of linear shaped charge 12 is linear, and this sockets for collecting energy 17 is just to rectangular cutout 15.
Also can in sockets for collecting energy 17, be inlaid with and the linear cavity liner 18 of its same shape in order to strengthen CUMULATIVE BLASTING effect.Linear cavity liner 18 is made up of materials such as red copper, iron or porcelain.
When use, (1) by designing requirement, the weak rocks soil body 1 is arranged to boring 3, (2) external diameter is headed in boring 3 than the tubular type body of rod 4 of the boring 3 little 1 ~ 2mm in aperture, fill stemming 13 on the tubular type body of rod 4 tops, (3) utilize interval between powder charge to be less than gap distance, by the induced detonation all powder charges of explosion of at once detonating, (4) the blast of igniting primer 9 and layout of linear shaped charge 12, produces strong effect to the tubular type body of rod 4 tube walls 14, orders about tube wall 14 plastic strain occurs, radial dilatation extruding Rock And Soil 1, anchored force can be provided immediately, stop the relative sliding of Rock And Soil 1 and anchor pole, reach the effect of anchoring at once, simultaneously, layout of linear shaped charge 12 the formed energy-gathering jetting that explodes, there is high pressure, speed and energy density, directly Rock And Soil 1 impact compress consumingly to the boring wall that on the tubular type body of rod 4 tube walls 14, rectangular cutout 15 is right, greatly strengthen the effect of explosive charge to Rock And Soil 1 by layout of linear shaped charge 12, cause hole wall Rock And Soil 1 to be pulverized, in Rock And Soil 1, form linear cavity energy explosion cutting seam 16, (5) by the linear cavity energy explosion cutting seam 16 forming, by the tubular type body of rod 4 tube chambers to Rock And Soil 1 slip casting, not only can grouting and reinforcing Rock And Soil 1, and the injecting cement paste 2 of filling in the tubular type body of rod 4 tube chambers and linear cavity energy explosion cutting seam 16 is by the formation anchoring that is connected as a single entity of the rectangular cutout 15 on the tubular type body of rod 4 tube walls 14, the tubular type body of rod 4 and Rock And Soil 1 are combined closely, that is by 16 slip castings of linear cavity energy explosion cutting seam, when forming Rock And Soil 1 grouting and reinforcing, injecting cement paste 2 in linear cavity energy explosion cutting seam 16 forms slip casting embolism 6, this slip casting embolism 6 by the tubular type body of rod 4 embolisms among boring and make it anchoring, fundamentally change traditional anchoring load pass through mechanism, the NEW TYPE OF COMPOSITE anchoring of friction-embolism and grouting and reinforcing comprehensive support system are built, improve significantly rock-reinforcing effect, transfer better the self-stable ability of Rock And Soil 1, thereby improve the stability of Rock And Soil 1, the safety of geotechnical engineering is greatly enhanced.
Claims (4)
1. linear cavity energy explosion slip casting anchoring pipe anchor rod, is characterized in that: it comprises the tubular type body of rod (4) and baffle ring (7) and the backing plate (8) of both ends open, hollow; Multiple rectangular cutout that distributing in the diverse location of the described tubular type body of rod (4) tube wall (14) and direction (15), its top is filled stemming (13) and is provided with the described baffle ring (7) with described backing plate (8); In the tube wall (14) of described tubular type body of rod bottom (5), be provided with the igniting primer (9) that detonator (10) are housed; Be provided with in the described tube wall (14) of described rectangular cutout (15) and be provided with layout of linear shaped charge (12).
2. linear cavity energy explosion slip casting anchoring pipe anchor rod as claimed in claim 1, is characterized in that: described detonator (10) is connected with detonator payment to a porter (11).
3. linear cavity energy explosion slip casting anchoring pipe anchor rod as claimed in claim 1, is characterized in that: the sockets for collecting energy (17) in described layout of linear shaped charge (12) is for linear, and this sockets for collecting energy (17) is just to described rectangular cutout (15).
4. linear cavity energy explosion slip casting anchoring pipe anchor rod as claimed in claim 3, is characterized in that: in described sockets for collecting energy (17), be inlaid with the linear cavity liner (18) with its same shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210412801.XA CN103774653B (en) | 2012-10-26 | 2012-10-26 | Linear cavity energy explosion slip casting anchoring pipe anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210412801.XA CN103774653B (en) | 2012-10-26 | 2012-10-26 | Linear cavity energy explosion slip casting anchoring pipe anchor rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103774653A true CN103774653A (en) | 2014-05-07 |
| CN103774653B CN103774653B (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210412801.XA Expired - Fee Related CN103774653B (en) | 2012-10-26 | 2012-10-26 | Linear cavity energy explosion slip casting anchoring pipe anchor rod |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295309A (en) * | 2014-10-30 | 2015-01-21 | 安徽理工大学 | Energy-gathered perforation hollow grouting anchor with reinforcement framework and construction method thereof |
| CN104358580A (en) * | 2014-10-30 | 2015-02-18 | 安徽理工大学 | Large-head energy gathering perforating pipe type grouting anchor rod with ribbed steel framework and construction method |
| CN104963700A (en) * | 2015-06-30 | 2015-10-07 | 中国矿业大学 | Soft rock roadway surrounding rock high pressure gas active presplitting grouting device and method |
| CN107542086A (en) * | 2017-10-17 | 2018-01-05 | 甘肃中建市政工程勘察设计研究院 | A kind of New Anchor Cable and its construction method for embankment side slope |
| CN110905570A (en) * | 2019-12-10 | 2020-03-24 | 济宁学院 | A stock anchor beam supporting construction for coal mine tunnel |
| CN112393656A (en) * | 2020-11-11 | 2021-02-23 | 中国人民解放军陆军工程大学 | Multipoint mode gathers can blasting loaded constitution |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4904122A (en) * | 1987-08-06 | 1990-02-27 | Dyckerhoff & Widmann Aktiengesellschaft | Anchoring device, such as a rock anchor |
| CN202144596U (en) * | 2011-06-18 | 2012-02-15 | 山东大学 | Local explosion hole reaming anchoring device |
| CN102519322A (en) * | 2011-12-06 | 2012-06-27 | 兰州大学 | Blasting method based on joint control of hole inside energy accumulation blasting and smooth blasting |
| CN202359559U (en) * | 2011-11-30 | 2012-08-01 | 兰州大学 | Bead-like tubular anchor rod |
| CN202936790U (en) * | 2012-10-26 | 2013-05-15 | 兰州大学 | Linear energy-concentrated blast grouting and anchoring tube-type anchor rod |
-
2012
- 2012-10-26 CN CN201210412801.XA patent/CN103774653B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4904122A (en) * | 1987-08-06 | 1990-02-27 | Dyckerhoff & Widmann Aktiengesellschaft | Anchoring device, such as a rock anchor |
| CN202144596U (en) * | 2011-06-18 | 2012-02-15 | 山东大学 | Local explosion hole reaming anchoring device |
| CN202359559U (en) * | 2011-11-30 | 2012-08-01 | 兰州大学 | Bead-like tubular anchor rod |
| CN102519322A (en) * | 2011-12-06 | 2012-06-27 | 兰州大学 | Blasting method based on joint control of hole inside energy accumulation blasting and smooth blasting |
| CN202936790U (en) * | 2012-10-26 | 2013-05-15 | 兰州大学 | Linear energy-concentrated blast grouting and anchoring tube-type anchor rod |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295309A (en) * | 2014-10-30 | 2015-01-21 | 安徽理工大学 | Energy-gathered perforation hollow grouting anchor with reinforcement framework and construction method thereof |
| CN104358580A (en) * | 2014-10-30 | 2015-02-18 | 安徽理工大学 | Large-head energy gathering perforating pipe type grouting anchor rod with ribbed steel framework and construction method |
| CN104295309B (en) * | 2014-10-30 | 2017-06-09 | 安徽理工大学 | A kind of jet perforating hollow grouting anchor and its construction method with framework of steel reinforcement |
| CN104963700A (en) * | 2015-06-30 | 2015-10-07 | 中国矿业大学 | Soft rock roadway surrounding rock high pressure gas active presplitting grouting device and method |
| CN104963700B (en) * | 2015-06-30 | 2017-02-08 | 中国矿业大学 | Soft rock roadway surrounding rock high pressure gas active presplitting grouting device and method |
| CN107542086A (en) * | 2017-10-17 | 2018-01-05 | 甘肃中建市政工程勘察设计研究院 | A kind of New Anchor Cable and its construction method for embankment side slope |
| CN110905570A (en) * | 2019-12-10 | 2020-03-24 | 济宁学院 | A stock anchor beam supporting construction for coal mine tunnel |
| CN110905570B (en) * | 2019-12-10 | 2021-03-23 | 济宁学院 | A stock anchor beam supporting construction for coal mine tunnel |
| CN112393656A (en) * | 2020-11-11 | 2021-02-23 | 中国人民解放军陆军工程大学 | Multipoint mode gathers can blasting loaded constitution |
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| CN103774653B (en) | 2016-03-30 |
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