CN110344867A - A kind of first anchor formula pipe rope anchor pole and construction method suitable for large deformation stratum - Google Patents
A kind of first anchor formula pipe rope anchor pole and construction method suitable for large deformation stratum Download PDFInfo
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- CN110344867A CN110344867A CN201910788707.6A CN201910788707A CN110344867A CN 110344867 A CN110344867 A CN 110344867A CN 201910788707 A CN201910788707 A CN 201910788707A CN 110344867 A CN110344867 A CN 110344867A
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- hollow bolt
- rod
- cable
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- 238000010276 construction Methods 0.000 title claims abstract description 28
- 239000011347 resin Substances 0.000 claims abstract description 62
- 229920005989 resin Polymers 0.000 claims abstract description 62
- 238000004873 anchoring Methods 0.000 claims abstract description 41
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 39
- 239000011435 rock Substances 0.000 claims abstract description 27
- 238000007569 slipcasting Methods 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims description 18
- 238000005096 rolling process Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 208000002925 dental caries Diseases 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 15
- 239000011083 cement mortar Substances 0.000 description 8
- 239000002689 soil Substances 0.000 description 8
- 239000003245 coal Substances 0.000 description 7
- 239000002360 explosive Substances 0.000 description 3
- 239000013521 mastic Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
- E21D20/025—Grouting with organic components, e.g. resin
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0093—Accessories
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of first anchor formula pipe rope anchor poles and construction method suitable for large deformation stratum, the anchor pole is including infusing hollow bolt after rotary first anchor, for being set in anchor hole, the front bar body that note hollow bolt is located on the inside of anchor hole after rotary elder generation's anchor can be anchored by resin anchoring agent, rear bar body can be anchored by slip casting, and note hollow bolt anchor head end is equipped with backing plate after rotary elder generation's anchor；Single hole anchor device, the both ends that hollow bolt is rotatably infused after elder generation's anchor are respectively equipped with single hole anchor device；Anchor cable, it is infused in hollow bolt after being set to rotary first anchor, one end of anchor cable is anchored in the end that hollow bolt is infused after rotary first anchor by a single hole anchor device, the other end of anchor cable is pierced by from note hollow bolt anchor head end after rotary first anchor, and can be connected and be tensioned with backing plate by another single hole anchor device.With the anchor pole, can realize active support by prestress anchorage cable, can further deformation controlling for rock surrounding gateways, be suitable for large deformation formation tunnel.
Description
Technical field
It is the present invention relates to a kind of anchor pole, in particular to a kind of suitable for the first anchor formula pipe rope anchor pole on large deformation stratum and construction
Method.
Background technique
Anchor pole is a kind of tension member structure that structure anchor or Rock And Soil are reinforced, and is divided into prestressed anchor and non-prestressed
Anchor pole.Prestressed anchor is a kind of active support pattern, can be transmitted to stretching force in stable or suitable Rock And Soil, thus
By structure together with anchoring in rock and soil or reinforce Rock And Soil.Non-prestressed anchor pole is a kind of passive protecting pattern, by with rock
Soil body common eigenvector, to play the role of reinforcing Rock And Soil.Suspension roof support is widely used to tunnels and underground engineering, side
The engineerings such as slope, foundation pit.Suspension roof support is the important component of bolt-spary supports, improves the support efficiency of country rock, is optimized each
The carrying ratio of kind supporting, has ensured engineering construction safety, has saved project cost.
Overall length binding type anchor pole is widely used in tunnels and underground engineering.Overall length binding type anchor pole is that the body of rod is exhausted in bolthole
Largely or entirely wrapped up by Anchor Agent, the main function of Anchor Agent has two o'clock, one is rise cementation, by anchor rod body with
Rock And Soil is cemented together；The second is playing protective action, anchor rod body overall length package can protect anchor pole anti-corrosion.According to
The difference of Anchor Agent, overall length binding type anchor pole are divided into resin anchor and anchor rod with cement mortar, and anchor rod body has the steel body of rod (real
The heart, hollow and anchor cable) and fiber reinforced plastics pole body (solid and hollow).
Resin anchor is mainly used in coal roadway support.Resin (volume) Anchor Agent is separated by resin-bonded mastic and curing agent two parts
Scroll is packed, anchor rod body can be made to be bonded together with Rock And Soil after mixing.Type that there are two types of supper-fast type resin anchoring agents,
That is CKa type and CKb type.After resin-bonded mastic and curing agent mixing, the gel time of CKa type resin anchoring agent is 8~25 seconds, anchor pole
Waiting the set-up time is 10~30 seconds；The gel time of CKb type resin anchoring agent be 26~40 seconds, anchor pole wait the set-up time be
30~60 seconds.Coal entry anchor rod support, resin anchor complete the installation of backing plate and nut generally in 60 seconds, and can apply one
Fixed pretightning force.Currently, resin anchor is the leading pattern of coal entry anchor rod support, mainly by following several respects factor: (1) coal
And coal quality formation rock hardness is smaller, pneumatic roof bolter drilling is easier；(2) resin anchor aperture ratio (anchor hole internal diameter with
The ratio of anchor rod body outer diameter) it is smaller, rock-bolt length is generally 1.6m~2.6m, and resin explosive roll usage amount is few, has cost excellent
Gesture；(3) the inherently good solid lubrication substance of coal quality miberal powder, it is small to have ensured that resin explosive roll and anchor rod body are smoothly inserted into
The anchor hole of aperture ratio；(4) setting time is shorter after resin-bonded mastic is mixed with curing agent in resin anchoring agent, is suitble to Fast Installation work
Skill；(5) resin gel gel strength is higher, and resin anchor withdrawal resistance is higher.
Although current resin anchor is the leading pattern of coal entry anchor rod support, in highway/railway tunnel, hydraulic tunnel
And using less in underground chamber, especially railway tunnel, main cause are as follows: (1) Railway Tunnel Surrounding Rock complex geologic conditions
It is changeable, it is difficult to form the anchor hole of small-bore ratio in weak, broken formation；(2) the generally long 2.5m of railway tunnel system anchor bolt~
5.0m, resin explosive roll and anchor pole may not be able to be smoothly inserted into the anchor hole of small-bore ratio；(3) anchor hole of large aperture ratio needs more
More resin anchoring agents, resin anchor higher cost.
Anchor rod with cement mortar (body of rod is solid and hollow) is highway/railway tunnel and hydraulic tunnel and underground chamber anchor pole branch
The leading pattern of shield.The strength of cement mortar grade of railway tunnel rule gauged mortar anchor pole is not lower than M20.Overall length binding type anchor
Bar backing plate and nut installation should be carried out after the intensity of cement mortar reaches 10MPa, therefore, the final set of cement mortar slurry and
The growth of early strength generally determines that suspension roof support applies and spends the time.M20 strength of cement mortar reaches 10Mpa, needs 1
~2 days, that is, anchor nut finally tightens and needs to wait 1~2 day.
Therefore, it is to shorten system anchor bolt to apply the time that how Tunnel Engineering, which solves the installation of anchor rod with cement mortar quick anchoring,
Anchor bolt construction quality and anchoring effect are improved, the key point of constructing tunnel process is optimized.
Summary of the invention
It is fast it is an object of the invention to overcome the Tunnel Engineering in the presence of the prior art how to solve anchor rod with cement mortar
Speed anchoring installation is to shorten system anchor bolt to apply the time, improves anchor bolt construction quality and anchoring effect, optimizes constructing tunnel process
Above-mentioned deficiency, a kind of first anchor formula pipe rope anchor pole and construction method suitable for large deformation stratum is provided.
In order to achieve the above-mentioned object of the invention, the present invention provides following technical schemes:
A kind of first anchor formula pipe rope anchor pole suitable for large deformation stratum, comprising:
Hollow bolt is infused after rotary elder generation's anchor, for being set in anchor hole, note hollow bolt is located at after the rotary first anchor
Front bar body on the inside of anchor hole can be anchored by resin anchoring agent, and rear bar body can be anchored by slip casting, be infused after rotary elder generation's anchor
Hollow bolt anchor head end is equipped with backing plate；
Single hole anchor device, the both ends that hollow bolt is infused after the rotary first anchor are respectively equipped with the single hole anchor device；
Anchor cable is infused in hollow bolt after being set to the rotary first anchor, and one end of the anchor cable passes through described in one
Single hole anchor device is anchored in the end that hollow bolt is infused after the rotary first anchor, and the other end of the anchor cable is from the rotary elder generation
Hollow bolt anchor head end is infused after anchor to be pierced by, and can be connected and be tensioned with the backing plate by single hole anchor device described in another.
Preferably, the preceding body of rod is connected with the rear body of rod by band hole connector, and the preceding body of rod is equipped with pressure-bearing
Plate.
Preferably, the end of the preceding body of rod is connected with adapter, and the adapter includes conical sleeve and blade, described
Blade is connected to the tapered end of the conical sleeve, and the adapter is equipped with through-hole, and the through-hole interference fit has hollow
Push rod is pressed, described pressure push rod one end connects the single hole anchor device, and the other end is inserted into the preceding body of rod.
Preferably, one end that the pressure push rod connects the single hole anchor device is equipped with resin cover, the pressure push rod and the tree
Rouge cover is fixed by interference fit, and the region between the resin cover and the adapter is for being arranged resin rolling Anchor Agent.
Preferably, the resin cover is equipped at least one installation cavity, and the installation cavity is for connecting resin rolling Anchor Agent.
Preferably, all installation cavitys are distributed setting along the cross-sectional uniformity of the resin cover.
Preferably, the anchor cable is non-bonded anchorage cable, and sheath is arranged with outside the anchor cable.
Preferably, the anchor cable surface is equipped with anti-corrosion lubricant coating.
The present invention also provides a kind of construction method of first anchor formula pipe rope anchor pole suitable for large deformation stratum, using such as with
Upper described in any item first anchor formula pipe rope anchor poles, the construction method the following steps are included:
A, will infuse after rotary first anchor hollow bolt and by single hole anchor device anchoring, be disposed through the rotary first anchor
The anchor cable for infusing hollow bolt afterwards is inserted into anchor hole to anchor hole bottom position together；
B, construction connector sleeve is connect with the rear body of rod, then opens the anchor cable from the side circle of the construction connector sleeve
Hole is infused outside hollow bolt after guiding to the rotary first anchor, the construction connector sleeve other end jointed rod, in the rotation of drilling rod
Turn under progradation, drive after the rotary first anchor rotation of note hollow bolt and to promoting inside anchor hole, described rotary
Under the compresso-shear process for infusing hollow bolt rotation after first anchor, adapter overcomes and presses the frictional force between push rod, and pushes away along the pressure
Bar is rotated and is promoted；
C, the adapter racks resin rolling Anchor Agent bag body, and the resin rolling Anchor Agent discharges resin anchoring agent,
Resin anchoring agent slurries mix, and the blade on the adapter stirs evenly resin anchoring agent, the body of rod before quick anchoring；
D, after the preceding body of rod is anchored, slip casting anchors the rear body of rod, spare anchor in note after the realization rotary first anchor
Club shaft overall length bonding；
E, backing plate is arranged in note hollow bolt anchor head end after the rotary first anchor, and the backing plate abuts country rock, tensioning institute
Anchor cable is stated, the anchor cable is anchored on the backing plate by another single hole anchor device.
Preferably, after the completion of the step A-D, when large deformation occurs for tunnel, then the step E is executed, that is, installed
The backing plate, anchor cable described in tensioning, the anchor cable is anchored on the backing plate by another single hole anchor device.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1, a kind of first anchor formula pipe rope anchor pole suitable for large deformation stratum of the present invention, not only realizes entire anchor pole
Quick anchoring installation, realize the quick passive protecting of country rock, while ensure that when surrouding rock deformation is excessive cause anchor pole destroy after still
With certain bearing capacity, active support is realized by prestress anchorage cable, can further deformation controlling for rock surrounding gateways, be suitable for big become
Shape formation tunnel；
2, a kind of first anchor formula pipe rope anchor pole suitable for large deformation stratum of the present invention, the front bar body can pass through
Resin anchoring agent carrys out quick anchoring, subsequent again to the rear body of rod slip casting by note hollow bolt anchoring after the rotary first anchor
Anchoring makes the rear body of rod overall length bonding, quickly completes note hollow bolt integral fastening installation after the rotary first anchor, institute
State bearing plate can be used in it is described after the body of rod mortar anchoring body bear pressure, compare existing anchor pole anchoring body bear shearing and
It says, the bearing capacity that hollow bolt is infused after the rotary first anchor is strengthened；
3, the construction method of a kind of first anchor formula pipe rope anchor pole suitable for large deformation stratum of the present invention, is not only realized
The quick anchoring installation of entire anchor pole, realizes the quick passive protecting of country rock, while ensure that and when surrouding rock deformation is excessive lead to anchor
Bar destroy after still have certain bearing capacity, by prestress anchorage cable realize active support, can further deformation controlling for rock surrounding gateways,
Suitable for large deformation formation tunnel.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the first anchor formula pipe rope anchor pole of the present invention suitable for large deformation stratum；
Fig. 2 is the connection relationship diagram of first anchor formula pipe rope anchor pole and construction connector sleeve of the present invention；
Fig. 3 is the structural schematic diagram of first anchor formula pipe rope anchor pole front of the present invention resin anchoring；
Fig. 4 is the structural schematic diagram of first anchor formula pipe rope anchor pole rear portion slip casting anchoring of the present invention；
Fig. 5 is the anchor rod anchored structural schematic diagram of first anchor formula pipe rope anchor pole of the present invention；
Fig. 6 is the structural schematic diagram of the anchorage cable anchoring of first anchor formula pipe rope anchor pole of the present invention；
Fig. 7 is the structural schematic diagram of bearing plate of the present invention；
Fig. 8 is the structural schematic diagram of single hole anchor device of the present invention；
Fig. 9 is the structural schematic diagram of intermediate plate of the present invention；
Figure 10 is the structural schematic diagram of adapter of the present invention；
Figure 11 is the structural schematic diagram of conical sleeve of the present invention；
Figure 12 is the structural schematic diagram of blade of the present invention；
Figure 13 is the structural schematic diagram of pressure push rod of the present invention；
Figure 14 is the left view of Figure 13；
Figure 15 is the structural schematic diagram of resin cover of the present invention；
Figure 16 is the right view of Figure 15；
Figure 17 is the structural schematic diagram of construction connector sleeve of the present invention.
Marked in the figure: the body of rod before 11-, the body of rod after 12-, 13- band hole connector, 14- bearing plate, 15- anchor cable, 16- single hole
Anchorage, 17- intermediate plate, 18- backing plate, 20- adapter, 21- conical sleeve, 22- blade, 30- press push rod, 31- protrusion, 40- resin
Cover, the packed resin anchoring agent of 50-, 60- construction connector sleeve.
Specific embodiment
Below with reference to test example and specific embodiment, the present invention is described in further detail.But this should not be understood
It is all that this is belonged to based on the technology that the content of present invention is realized for the scope of the above subject matter of the present invention is limited to the following embodiments
The range of invention.
Embodiment 1
As shown in Fig. 1-17, a kind of first anchor formula pipe rope anchor pole suitable for large deformation stratum of the present invention, comprising:
Hollow bolt is infused after rotary elder generation's anchor, for being set in anchor hole, note hollow bolt is located at after the rotary first anchor
The preceding body of rod 11 on the inside of anchor hole can be anchored by resin anchoring agent, and the rear body of rod 12 can be anchored by slip casting, rotary elder generation's anchor
Note hollow bolt anchor head end is equipped with backing plate 18 afterwards, and the preceding body of rod 11 and the rear body of rod 12 pass through band hole connector 13 and connect,
The preceding body of rod 11 is equipped with bearing plate 14, and the end of the preceding body of rod 11 is connected with adapter 20, and the adapter 20 includes
Conical sleeve 21 and blade 22, the blade 23 are connected to the tapered end of the conical sleeve 21, and the adapter 20 is equipped with
Through-hole, the through-hole interference fit have hollow pressure push rod 30, and described 30 one end of pressure push rod connects the single hole anchor device 16, another
The preceding body of rod 11 is inserted at end, and one end that the pressure push rod 30 connects the single hole anchor device 16 is equipped with resin cover 40, and the pressure pushes away
Bar 30 and the resin cover 40 are fixed by interference fit, and the region between the resin cover 40 and the adapter 20 is for setting
Resin rolling Anchor Agent 50 is set, the resin cover 40 is set there are four installation cavity, and the installation cavity is anchored for connecting resin rolling
Agent 50, all installation cavitys are distributed setting along the cross-sectional uniformity of the resin cover 40；
Single hole anchor device 16, interior to be equipped with intermediate plate 17, the both ends that hollow bolt is infused after the rotary first anchor are respectively equipped with institute
State single hole anchor device 16；
Anchor cable 15 is infused in hollow bolt after being set to the rotary first anchor, and one end of the anchor cable 15 passes through one
The single hole anchor device 16 and the intermediate plate 17 are anchored in the end of note hollow bolt after the rotary first anchor, the anchor cable 15
The other end is pierced by from note hollow bolt anchor head end after the rotary first anchor, and can by single hole anchor device 16 described in another,
The intermediate plate 17 and the backing plate 18 are connected and are tensioned, and specifically, the intermediate plate 17 is for clamping the anchor cable 15, the anchor cable
15 be non-bonded anchorage cable, and sheath is arranged with outside the anchor cable 15, and 15 surface of anchor cable is equipped with anti-corrosion lubricant coating.
With a kind of first anchor formula pipe rope anchor pole suitable for large deformation stratum of the present invention, entire anchor is not only realized
The quick anchoring of bar is installed, and realizes the quick passive protecting of country rock, while ensure that after surrouding rock deformation is excessive to cause anchor pole to destroy
Still there is certain bearing capacity, active support is realized by prestress anchorage cable, can further deformation controlling for rock surrounding gateways, be suitable for big
Deform formation tunnel.
Embodiment 2
The construction method of a kind of first anchor formula pipe rope anchor pole suitable for large deformation stratum of the present invention, using such as implementation
First anchor formula pipe rope anchor pole described in example 1, the construction method the following steps are included:
A, will infuse after rotary first anchor hollow bolt and by the anchoring of single hole anchor device 16, be disposed through the rotary elder generation
The anchor cable 15 for infusing hollow bolt after anchor is inserted into anchor hole to anchor hole bottom position together；
B, construction connector sleeve 60 is connect with the rear body of rod 12, then by the anchor cable 15 from the side of the connector sleeve 60 of constructing
Face circular opening is infused outside hollow bolt after guiding to the rotary first anchor, 60 other end jointed rod of construction connector sleeve,
Under the rotation progradation of drilling rod, the rotation of note hollow bolt is driven after the rotary first anchor and to promoting inside anchor hole,
After the rotary first anchor under the compresso-shear process of note hollow bolt rotation, adapter 20 overcomes and presses the friction between push rod 30
Power, and rotate and promote along the pressure push rod 30；
C, the adapter 20 racks 50 bag body of resin rolling Anchor Agent, and the resin rolling Anchor Agent 50 discharges resin anchor
Gu agent, resin anchoring agent slurries are mixed, and the blade 22 on the adapter 20 stirs evenly resin anchoring agent, before quick anchoring
The body of rod 11；
D, after the preceding body of rod 11 is anchored, slip casting anchors the rear body of rod 12, after the realization rotary first anchor in note
Spare anchor club shaft overall length bonding；
E, when large deformation occurs for tunnel, backing plate 18, institute is arranged in note hollow bolt anchor head end after the rotary first anchor
It states backing plate 18 and abuts country rock, anchor cable 15 described in tensioning, the anchor cable 15 is anchored in the backing plate by another single hole anchor device 16
On 18.
With a kind of construction method of invention first anchor formula pipe rope anchor pole suitable for large deformation stratum, not only realize
The quick anchoring installation of entire anchor pole, realizes the quick passive protecting of country rock, while ensure that and when surrouding rock deformation is excessive lead to anchor
Bar destroy after still have certain bearing capacity, by prestress anchorage cable realize active support, can further deformation controlling for rock surrounding gateways,
Suitable for large deformation formation tunnel.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of first anchor formula pipe rope anchor pole suitable for large deformation stratum characterized by comprising
Hollow bolt is infused after rotary elder generation's anchor, for being set in anchor hole, note hollow bolt is located at anchor hole after the rotary first anchor
The preceding body of rod (11) of inside can be anchored by resin anchoring agent, and the rear body of rod (12) can be anchored by slip casting, rotary elder generation's anchor
Note hollow bolt anchor head end is equipped with backing plate (18) afterwards；
Single hole anchor device (16), the both ends that hollow bolt is infused after the rotary first anchor are respectively equipped with the single hole anchor device (16)；
Anchor cable (15) is infused in hollow bolt after being set to the rotary first anchor, and one end of the anchor cable (15) passes through one
The single hole anchor device (16) is anchored in the end that hollow bolt is infused after the rotary first anchor, the other end of the anchor cable (15) from
Note hollow bolt anchor head end is pierced by after the rotary first anchor, and can pass through single hole anchor device described in another (16) and the pad
Plate (18) is connected and is tensioned.
2. pipe rope anchor pole according to claim 1, which is characterized in that the preceding body of rod (11) and the rear body of rod (12) are logical
It crosses band hole connector (13) to connect, the preceding body of rod (11) is equipped with bearing plate (14).
3. pipe rope anchor pole according to claim 2, which is characterized in that the end of the preceding body of rod (11) is connected with adapter
(20), the adapter (20) includes conical sleeve (21) and blade (22), and the blade (23) is connected to the conical sleeve
(21) tapered end, the adapter (20) are equipped with through-hole, and the through-hole interference fit has hollow pressure push rod (30), described
Push rod (30) one end is pressed to connect the single hole anchor device (16), the other end is inserted into the preceding body of rod (11).
4. pipe rope anchor pole according to claim 3, which is characterized in that the pressure push rod (30) connects the single hole anchor device
(16) one end is equipped with resin cover (40), and the pressure push rod (30) and the resin cover (40) are fixed by interference fit, described
Region between resin cover (40) and the adapter (20) is for being arranged resin rolling Anchor Agent (50).
5. elder generation's anchor formula pipe rope anchor pole according to claim 4, which is characterized in that the resin cover (40) is equipped at least one
Installation cavity, the installation cavity is for connecting resin rolling Anchor Agent (50).
6. elder generation's anchor formula pipe rope anchor pole according to claim 5, which is characterized in that all installation cavitys are along the resin cover
(40) cross-sectional uniformity is distributed setting.
7. elder generation's anchor formula pipe rope anchor pole according to claim 1-6, which is characterized in that the anchor cable (15) is without viscous
Anchor cable is tied, sheath is arranged with outside the anchor cable (15).
8. elder generation's anchor formula pipe rope anchor pole according to claim 7, which is characterized in that moisten equipped with anti-corrosion on anchor cable (15) surface
Sliding coating.
9. a kind of construction method of the first anchor formula pipe rope anchor pole suitable for large deformation stratum, which is characterized in that application such as right is wanted
Seek the described in any item first anchor formula pipe rope anchor poles of 1-8, the construction method the following steps are included:
A, will rotatably infuse after first anchor hollow bolt and by single hole anchor device (16) anchoring, be disposed through the rotary first anchor
The anchor cable (15) for infusing hollow bolt afterwards is inserted into anchor hole to anchor hole bottom position together；
B, construction connector sleeve (60) is connect with the rear body of rod (12), then by the anchor cable (15) from the construction connector sleeve (60)
Side circular opening guide to the rotary first anchor after infuse outside hollow bolt, construction connector sleeve (60) other end connects
Drilling rod drives after the rotary first anchor rotation of note hollow bolt and to pushing away inside anchor hole under the rotation progradation of drilling rod
Into, after the rotary first anchor under the compresso-shear process of note hollow bolt rotation, adapter (20) overcome with pressure push rod (30) it
Between frictional force, and along the pressure push rod (30) rotate and promote；
C, the adapter (20) racks resin rolling Anchor Agent (50) bag body, and the resin rolling Anchor Agent (50) discharges resin
Anchor Agent, resin anchoring agent slurries mix, and the blade (22) on the adapter (20) stirs evenly resin anchoring agent, quickly
The body of rod (11) before anchoring；
D, after the preceding body of rod (11) is anchored, slip casting anchors the rear body of rod (12), after the realization rotary first anchor in note
Spare anchor club shaft overall length bonding；
E, note hollow bolt anchor head end setting backing plate (18) after the rotary first anchor, the backing plate (18) abut country rock,
It draws the anchor cable (15), the anchor cable (15) is anchored on the backing plate (18) by another single hole anchor device (16).
10. construction method according to claim 9, which is characterized in that after the completion of the step A-D, occur to tunnel
When large deformation, then the step E is executed, that is, installed the backing plate (18), anchor cable (15) described in tensioning is logical by the anchor cable (15)
Another single hole anchor device (16) is crossed to be anchored on the backing plate (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910788707.6A CN110344867B (en) | 2019-08-23 | 2019-08-23 | Early-anchored pipe cable anchor rod suitable for large-deformation stratum and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910788707.6A CN110344867B (en) | 2019-08-23 | 2019-08-23 | Early-anchored pipe cable anchor rod suitable for large-deformation stratum and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110344867A true CN110344867A (en) | 2019-10-18 |
| CN110344867B CN110344867B (en) | 2024-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910788707.6A Active CN110344867B (en) | 2019-08-23 | 2019-08-23 | Early-anchored pipe cable anchor rod suitable for large-deformation stratum and construction method |
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| CN (1) | CN110344867B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111980735A (en) * | 2020-09-01 | 2020-11-24 | 太原理工大学 | Can prolong anticorrosive time's strut stock body |
| CN114542149A (en) * | 2022-04-27 | 2022-05-27 | 中国矿业大学 | Underground roadway rock burst prevention supporting anchor cable |
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| CN111980735B (en) * | 2020-09-01 | 2022-07-05 | 太原理工大学 | Can prolong anticorrosive time's strut stock body |
| CN114542149A (en) * | 2022-04-27 | 2022-05-27 | 中国矿业大学 | Underground roadway rock burst prevention supporting anchor cable |
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