CN106801612A - A kind of T76S high intensity self-drilling type barrel vault advanced support engineering method - Google Patents
A kind of T76S high intensity self-drilling type barrel vault advanced support engineering method Download PDFInfo
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- CN106801612A CN106801612A CN201710114878.1A CN201710114878A CN106801612A CN 106801612 A CN106801612 A CN 106801612A CN 201710114878 A CN201710114878 A CN 201710114878A CN 106801612 A CN106801612 A CN 106801612A
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- Prior art keywords
- pipe
- rig
- steel pipes
- high intensity
- type barrel
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Links
- 102200157180 rs7997 Human genes 0.000 title claims abstract description 67
- 238000005553 drilling Methods 0.000 title claims abstract description 31
- 238000012407 engineering method Methods 0.000 title claims abstract description 14
- 229910000712 Boron steel Inorganic materials 0.000 claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 36
- 239000010959 steel Substances 0.000 claims abstract description 36
- 238000007569 slipcasting Methods 0.000 claims abstract description 26
- 239000011083 cement mortar Substances 0.000 claims abstract description 18
- 238000010276 construction Methods 0.000 claims abstract description 15
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052796 boron Inorganic materials 0.000 claims abstract description 12
- 238000013461 design Methods 0.000 claims abstract description 4
- 230000005641 tunneling Effects 0.000 claims abstract description 4
- 238000009412 basement excavation Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 241001669679 Eleotris Species 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 239000011435 rock Substances 0.000 abstract description 14
- 230000008014 freezing Effects 0.000 abstract description 4
- 238000007710 freezing Methods 0.000 abstract description 4
- 240000005572 Syzygium cordatum Species 0.000 abstract description 2
- 235000006650 Syzygium cordatum Nutrition 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 150000002739 metals Chemical class 0.000 abstract description 2
- 238000012797 qualification Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000004568 cement Substances 0.000 description 2
- 230000010339 dilation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000000411 inducer Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a kind of T76S high intensity self-drilling type barrel vault advanced support engineering method, use T76S pipe boron steel pipes as passage in stratum inject cement mortar to form supporter, including construction drill operating room；Worked in rig and indoor location and adjust rig and slip casting machine；T76S pipe boron steel pipes and drill bit are installed, drive T76S pipe boron steels pipes to creep into by rig, and using slip casting machine by T76S pipe boron steel pipes to injecting cement mortar in stratum；After slip casting length reaches design requirement, tunneling.The beneficial effects of the invention are as follows：By the present invention in that effectively can be bonded with country rock with T76S pipe boron steels pipe such that it is able to avoid rock crushing, and form overall stress, the problems such as can effectively solve the problem that collapse hole, bit freezing.The present invention is applied to weak surrounding rock and the sandstone areas such as vcehicular tunnel, railway tunnel, water wood tunnel, nonferrous metals ore tunnel, colliery, and it has the advantages that the qualification that applied widely, difficulty of construction is small, easy to operate, be independent of workmen.
Description
Technical field
It is a kind of T76S high intensity self-drilling type barrel vault advanced support work specifically the present invention relates to constructing tunnel field
Method.
Background technology
Under the conditions of prior art, the inducer enclosing lithologies of some Tunnel Engineering are mud stone, marl, belong to soft rockmass,
Shale content is heavier, developmental joint fissure, and it is in chunky shape that rock mass after being cut more, partly for powdered.After rock mass meets water immersion
Easily soften, self is poor, it is necessary to ensure construction safety using advance support measure before tunnel excavation.Due to rock mass
Broken, in Shed-pipe Advanced Support work progress, frequently, installing the pipe canopies of tradition φ 108 needs pipe-following drilling, causes to apply for collapse hole, bit freezing
Work progress is slow, and security risk is very high in work progress, can have a strong impact on the duration.
The content of the invention
It is an object of the invention to provide a kind of short construction period, the T76S for reinforcing efficiency high, construction risk being evaded
High intensity self-drilling type barrel vault advanced support engineering method.
The present invention is achieved through the following technical solutions：A kind of T76S high intensity self-drilling type barrel vault advanced support engineering method, uses
T76S pipe boron steel pipes are as passage to injecting cement mortar in stratum forming supporter.
Including following steps：
Step S1：Construction drill operating room；
Step S2：Worked in rig and indoor location and adjust rig and slip casting machine；
Step S3：T76S pipe boron steel pipes and drill bit are installed, drive T76S pipe boron steels pipe to creep into by rig, and pass through using slip casting machine
T76S pipe boron steel pipes in stratum to injecting cement mortar；
Step S4：After previous section T76S pipe boron steels pipe drilling terminates, rig is return, in the free end of previous section T76S pipe boron steel pipes
Adapter sleeve is installed, and next section T76S pipe boron steel pipes are socketed by adapter sleeve, continue to drive drilling using rig, and use slip casting
Machine is by T76S pipe boron steel pipes to injecting cement mortar in stratum；
Step S5：Repeat step S4, after slip casting length reaches design requirement, tunneling.
In described step S1, including holed mouth according to excavation contour line, the vault of tunnel face and side spray plus reinforcing bar
Concrete, face element pneumatically placed concrete.
In described step S1, also including performing shield arch, described shield arch is a Pin I-steel.
Several holes are opened up on described I-steel, the guiding steel pipe for installing T76S pipe boron steel pipes is welded in hole.
Described guiding steel pipe is interconnected by the way of welded reinforcement.
The described gap pneumatically placed concrete filling for being oriented to steel pipe and tunnel wall.
In described step S2, the drill rod axis of rig and the axis coaxle of T76S pipe boron steel pipes.
Described rig lower section is installed by sleeper.
The present invention compared with prior art, with advantages below and beneficial effect：
By the present invention in that effectively can be bonded with country rock with T76S pipe boron steels pipe such that it is able to avoid rock crushing, and formed
Overall stress, the problems such as can effectively solve the problem that collapse hole, bit freezing.The present invention be applied to vcehicular tunnel, railway tunnel, water wood tunnel,
The weak surrounding rocks such as nonferrous metals ore tunnel, colliery and sandstone area, it has applied widely, difficulty of construction small, easy to operate, no
The advantages of relying on the qualification of workmen.
Brief description of the drawings
Fig. 1 is schematic flow sheet of the invention.
Specific embodiment
The present invention is described in further detail with reference to embodiment, but embodiments of the present invention not limited to this.
Embodiment 1：
In the present embodiment, a kind of T76S high intensity self-drilling type barrel vault advanced support engineering method, using T76S pipe boron steel pipes as passage
To injecting cement mortar in stratum to form supporter, T76S pipe boron steels pipe is continuous T type threaded heavy wall steel pipe, thread depth 3mm,
It effectively can be bonded with country rock such that it is able to avoid rock crushing, cement mortar, can be mutual from after the outflow of T76S pipe boron steels pipe
Bonding and form an entirety with T76S pipe boron steels pipe, cement mortar dilation angle is big, can effectively improve country rock, and by making
T76S pipe boron steel pipes and cement mortar bond to form overall stress, the problems such as can effectively solve the problem that collapse hole, bit freezing.
Embodiment 2：
On the basis of embodiment 1, in the present embodiment, it specifically includes following steps：
Step S1：Construction drill operating room, holes mouth according to excavation contour line, digs into depth for 6m, the vault of tunnel face and
Side spray plus the thick armored concrete of 10cm, the size of reinforced mesh is 100cm*100cm, φ 12cm, face element spray 10cm
Concrete, is conducive to the protection rig operating room will not to cave in, and avoid the vibrations that rig operating room produces to rock mass with this
Impact and occur slack, ensured construction safety.
Step S2：Worked in rig and indoor location and adjust rig and slip casting machine, the drill rod axis and T76S for making rig are managed
The axis coaxle of boron steel pipe, in the present embodiment, uses C6 rigs.
Step S3：T76S pipe boron steel pipes and drill bit are installed, drill bit is arranged on one end of T76S pipe boron steel pipes, T76S pipe boron steels
The other end of pipe is connected with the drilling rod of rig, drives T76S pipe boron steel pipes to be crept into along the construction direction in tunnel by rig,
During drilling using slip casting machine by T76S pipe boron steel pipes to pumping cement mortar in stratum, in the present embodiment, described brill
Head using φ 130mm drill bit, slip casting machine uses pulsed slip casting machine, before drilling, with the slip casting passage of water lubrication rig and
T76S pipe boron steel pipes.Ensure that cement mortar is smoothly pumped with this, it is to avoid occur blocking.Cement mortar is using 32.5 cement according to water
Gray scale is formulated for 0.5.In the present embodiment, when starting rig and creeping into, just start using low speed low pressure drilling, when from pore-forming 1m
Adjustment drilling speed is gradually adjusted according to geological condition afterwards and is finally stablized and keep having water in drilling during 100r/min, drilling
Mud.
Step S4：After previous section T76S pipe boron steels pipe drilling terminates, make slip casting machine termination of pumping, and return rig, in previous section
Adapter sleeve is installed in the free end of T76S pipe boron steel pipes, and is socketed next section T76S pipe boron steel pipes by adapter sleeve, using rig after
It is continuous to drive drilling, and using slip casting machine by T76S pipe boron steel pipes to injecting cement mortar in stratum.
Step S5：Repeat step S4, T76S pipe boron steel pipe is arranged according to the profile of face, using odevity T76S
Pipe boron steel pipe is spaced slip casting, the order of slip casting first to note odd number pipe, and according to order slip casting from down to up, from left to right, very
After the completion of number pipe slip casting, then even number pipe is noted, slip casting passes through one end of T76S pipe canopy fastener for connection drill bits to external diffusion, all T76S
After pipe boron steel pipe all completes slip casting, cement mortar can be adhered to one another and form an entirety, cement mortar dilation angle is big, Neng Gouyou
Effect improvement country rock, so as to play a part of to prevent collapsing, after slip casting reaches design requirement, tunneling.
Embodiment 3：
On the basis of above-described embodiment, in the present embodiment, in described step S1, also including performing shield arch, described shield arch
It is a Pin I-steel, support can be played a part of to rig operating room with this, so as to strengthens the energy that rig operating room prevents collapsing
Power.
Embodiment 4：
On the basis of above-described embodiment, in the present embodiment, 50 holes of diameter 150mm, pitch-row are opened up on described I-steel
40cm, welds the φ 150mm for installing T76S pipe boron steel pipes and is oriented to steel pipe in hole, be oriented to steel pipe theodolite and existed with coordinate method
Its plan-position is made on I-steel.Gradient plate is coordinated to set the inclination angle for being oriented to steel pipe with levelling rod.Set away from method with pre-post difference
It is oriented to the outer limb of steel pipe.The installation accuracy for being oriented to steel pipe is improved with this, so as to improve the Drilling Precision of T76S pipe boron steel pipes, is protected
Demonstrate,prove the precision and efficiency of construction.In the present embodiment, described adjacent guiding steel pipe is mutually connected by the way of welded reinforcement
Connect, the installation accuracy and bonding strength of steel pipe are oriented to protect, construction precision is influenceed so as to prevent guiding steel pipe to be moved.This
In embodiment, the described gap pneumatically placed concrete filling for being oriented to steel pipe and tunnel wall, to prevent guiding steel pipe from shifting and shadow
Ring construction precision.
Embodiment 5：
On the basis of above-described embodiment, in the present embodiment, sleeper is installed in described rig lower section, ensures that rig is arranged on this
On the basis of firm, construction precision is influenceed so as to avoid rig from situations such as uneven subsidence, swing, displacement occur.
Embodiment 6：
On the basis of above-described embodiment, in the present embodiment, high-pressure water pipe is connected in described rig operating room, in order to carry out
Hole flushing etc. is operated.
Embodiment 7：
On the basis of above-described embodiment, in the present embodiment, after slip casting terminates, the cement in T76S pipe boron steel pipes is removed in time
Slurry, and the termination of T76S pipe boron steel pipes is crammed with Anchor Agent, to strengthen the rigidity and intensity of T76S pipe boron steel pipes.
The above, is only presently preferred embodiments of the present invention, not does any formal limitation to the present invention, it is every according to
Any simple modification, the equivalent variations made to above example according to technical spirit of the invention, each fall within protection of the invention
Within the scope of.
Claims (9)
1. a kind of T76S high intensity self-drilling type barrel vault advanced support engineering method, it is characterised in that：Using T76S pipe boron steel pipes as logical
Road is to injecting cement mortar forming supporter in stratum.
2. a kind of T76S high intensity self-drilling type barrel vault advanced support engineering method according to claim 1, it is characterised in that：Including
Following steps：
Step S1：Construction drill operating room；
Step S2：Worked in rig and indoor location and adjust rig and slip casting machine；
Step S3：T76S pipe boron steel pipes and drill bit are installed, drive T76S pipe boron steels pipe to creep into by rig, and pass through using slip casting machine
T76S pipe boron steel pipes in stratum to injecting cement mortar；
Step S4：After previous section T76S pipe boron steels pipe drilling terminates, rig is return, in the free end of previous section T76S pipe boron steel pipes
Adapter sleeve is installed, and next section T76S pipe boron steel pipes are socketed by adapter sleeve, continue to drive drilling using rig, and use slip casting
Machine is by T76S pipe boron steel pipes to injecting cement mortar in stratum；
Step S5：Repeat step S4, after slip casting length reaches design requirement, tunneling.
3. a kind of T76S high intensity self-drilling type barrel vault advanced support engineering method according to claim 2, it is characterised in that：It is described
The step of S1 in, including holed mouth according to excavation contour line, the vault of tunnel face and side spray plus armored concrete, face
Plain pneumatically placed concrete.
4. a kind of T76S high intensity self-drilling type barrel vault advanced support engineering method according to Claims 2 or 3, it is characterised in that：
In described step S1, also including performing shield arch, described shield arch is a Pin I-steel.
5. a kind of T76S high intensity self-drilling type barrel vault advanced support engineering method according to claim 4, it is characterised in that：It is described
I-steel on open up several holes, the guiding steel pipe for installing T76S pipe boron steel pipes is welded in hole.
6. a kind of T76S high intensity self-drilling type barrel vault advanced support engineering method according to claim 5, it is characterised in that：It is described
Guiding steel pipe interconnected by the way of welded reinforcement.
7. a kind of T76S high intensity self-drilling type barrel vault advanced support engineering method according to claim 6, it is characterised in that：It is described
The gap pneumatically placed concrete filling for being oriented to steel pipe and tunnel wall.
8. a kind of T76S high intensity self-drilling type barrel vault advanced support work according to any one of claim 2,3,5,6,7
Method, it is characterised in that：In described step S2, the drill rod axis of rig and the axis coaxle of T76S pipe boron steel pipes.
9. a kind of T76S high intensity self-drilling type barrel vault advanced support engineering method according to claim 8, it is characterised in that：It is described
Rig lower section install sleeper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710114878.1A CN106801612A (en) | 2017-02-28 | 2017-02-28 | A kind of T76S high intensity self-drilling type barrel vault advanced support engineering method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710114878.1A CN106801612A (en) | 2017-02-28 | 2017-02-28 | A kind of T76S high intensity self-drilling type barrel vault advanced support engineering method |
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| Publication Number | Publication Date |
|---|---|
| CN106801612A true CN106801612A (en) | 2017-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710114878.1A Pending CN106801612A (en) | 2017-02-28 | 2017-02-28 | A kind of T76S high intensity self-drilling type barrel vault advanced support engineering method |
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| CN (1) | CN106801612A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736824A (en) * | 2018-12-10 | 2019-05-10 | 中交一公局桥隧工程有限公司 | Construction process of T76 high-strength self-drilling spiral pipe shed |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4129991A (en) * | 1977-10-28 | 1978-12-19 | Karl Schaden | Method of producing a concrete lined tunnel or other underground excavation |
| CN101624910A (en) * | 2009-07-31 | 2010-01-13 | 广州市建筑机械施工有限公司 | Method for reinforcing concealed tunnel |
| CN104481550A (en) * | 2014-10-23 | 2015-04-01 | 中国二十冶集团有限公司 | Tunnel collapse treatment advance support method |
| CN205117357U (en) * | 2015-11-21 | 2016-03-30 | 中铁二十局集团第二工程有限公司 | Weak surrounding rock tunnel advance support structure based on self -drilling spiral pipe canopy |
| CN205117356U (en) * | 2015-11-21 | 2016-03-30 | 中铁二十局集团第二工程有限公司 | Self -drilling spiral pipe canopy |
-
2017
- 2017-02-28 CN CN201710114878.1A patent/CN106801612A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4129991A (en) * | 1977-10-28 | 1978-12-19 | Karl Schaden | Method of producing a concrete lined tunnel or other underground excavation |
| CN101624910A (en) * | 2009-07-31 | 2010-01-13 | 广州市建筑机械施工有限公司 | Method for reinforcing concealed tunnel |
| CN104481550A (en) * | 2014-10-23 | 2015-04-01 | 中国二十冶集团有限公司 | Tunnel collapse treatment advance support method |
| CN205117357U (en) * | 2015-11-21 | 2016-03-30 | 中铁二十局集团第二工程有限公司 | Weak surrounding rock tunnel advance support structure based on self -drilling spiral pipe canopy |
| CN205117356U (en) * | 2015-11-21 | 2016-03-30 | 中铁二十局集团第二工程有限公司 | Self -drilling spiral pipe canopy |
Non-Patent Citations (2)
| Title |
|---|
| 冯军武: "T76S自钻式螺旋管棚在软弱围岩超前支护中的应用", 《石家庄铁道大学学报（自然科学版）》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736824A (en) * | 2018-12-10 | 2019-05-10 | 中交一公局桥隧工程有限公司 | Construction process of T76 high-strength self-drilling spiral pipe shed |
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Application publication date: 20170606 |
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