CN106197802A - A kind of monitor the method for minimal support power needed for adjoining rock stability - Google Patents
A kind of monitor the method for minimal support power needed for adjoining rock stability Download PDFInfo
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- CN106197802A CN106197802A CN201610564935.1A CN201610564935A CN106197802A CN 106197802 A CN106197802 A CN 106197802A CN 201610564935 A CN201610564935 A CN 201610564935A CN 106197802 A CN106197802 A CN 106197802A
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- lining cutting
- mpa
- cutting tire
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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Abstract
A kind of monitoring the method for minimal support power needed for adjoining rock stability, the method comprises the following steps: step 1: install the tunnel lining structure never removing lining cutting tire on country rock；Step 2: determine the time when surrouding rock deformation of step 1 reaches stable；Step 3: the numerical value of the carcass pressure a of the recording step 2 lining cutting tire when surrouding rock deformation reaches stable；Step 4: coarse adjustment；I.e. obtain minimal support power d needed for adjoining rock stability.What the present invention provided a kind of monitors the method for minimal support power needed for adjoining rock stability, the problem of required supporting power more difficult mensuration when surrouding rock deformation reaches stable can be solved, can be according to the requirement of engineering precision, accurately the minimal support power needed for monitoring surrouding rock deformation country rock, simple.
Description
Technical field
The present invention relates to Tunnel Engineering surrounding rock supporting field, a kind of monitor minimal support power needed for adjoining rock stability
Method.
Background technology
Supporting construction is significant to the stability in the stabilization of country rock, construction safety, tunnel operation.Currently
High ground stress soft rock stress Wall Rock of Tunnel creep compliance is big, and deformation time length, surrouding rock stress inhomogeneities are notable, and country rock was deforming in addition
The pressure in journey applied supporting construction is in variable condition, so required supporting power more difficult survey when surrouding rock deformation reaches stable
Fixed.In addition, Main Basis country rock maximum stress design supporting construction in present stage China's tunnel engineering, this will cause supporting construction
When stress relatively large part is destroyed, stress smaller part position plays far away self-strength, also results in the wasting of resources simultaneously.Currently without one
The method of kind can accurately measure required minimal support power when surrouding rock deformation reaches stable according to requirement of engineering precision.
Summary of the invention
The technical problem to be solved is to provide a kind of monitors the method for minimal support power needed for adjoining rock stability, can
To solve the problem of required supporting power more difficult mensuration when surrouding rock deformation reaches stable, can be according to the requirement of engineering precision, accurately
Minimal support power needed for monitoring surrouding rock deformation country rock, simple.
For solving above-mentioned technical problem, the technical solution adopted in the present invention is: minimum needed for a kind of monitoring adjoining rock stability
The method of supporting power, the method comprises the following steps:
Step 1: install the tunnel lining structure never removing lining cutting tire on country rock: described tunnel lining structure includes
Steel arch-shelf, is provided with lining cutting tire between steel arch-shelf and country rock, be filled with air in lining cutting tire, and lining cutting tire is provided with to let out and carries
Put, let out and carry the transfer port that bottom of device is provided with aerofluxus, gas transmission is integrated, steel arch-shelf and lining cutting tire by steel strand wires and country rock
Anchor pole be fixed on country rock；
According to corresponding technical specification, step 2: monitoring surrouding rock deformation rate of acceleration, determines that the surrouding rock deformation of step 1 reaches steady
The time of timing；
Step 3: the numerical value of the carcass pressure a of the recording step 2 lining cutting tire when surrouding rock deformation reaches stable；
Step 4: coarse adjustment: utilize to let out to carry to put and the carcass pressure of lining cutting tire is reduced F MPa, check to let out to carry whether put
There is phenomenon of losing heart, if there is not phenomenon of losing heart, then checking again after carcass pressure minimizing F MPa of lining cutting tire,
Repeat above-mentioned minimizing carcass pressure and whether the step of gas leakage occurs, putting the disappointing phenomenon of generation until letting out to carry, recording now
The numerical value of the carcass pressure b of lining cutting tire:
B=(a-F × N) MPa
The number of times that wherein the carcass pressure of N=lining cutting tire reduces, F=0.5～3 MPas；
Step 5: by let out carry put inflation by the way of the carcass pressure of lining cutting tire adjusted the numerical value c of upper level,
C={a-F × (N-1) } MPa
The number of times that wherein in N=step 4, the carcass pressure of lining cutting tire reduces, F=0.5～3 MPas, according to engineering precision
Requirement select concrete numerical value；
I.e. obtain minimal support power d=c MPa needed for adjoining rock stability.
The method also includes step 6 and step 7,
Step 6: fine setting: utilize to let out to carry to put and the carcass pressure of the lining cutting tire through step 5 is reduced E MPa, check
Let out and carry to put whether phenomenon of losing heart occurs, if there is not phenomenon of losing heart, then by after carcass pressure minimizing E MPa of lining cutting tire
Checking again, repeat above-mentioned minimizing carcass pressure and whether the step of gas leakage occurs, putting the disappointing phenomenon of generation until letting out to carry,
The numerical value of the carcass pressure b ' of record lining cutting tire now:
B '=(c-E × M) MPa
The number of times that wherein the carcass pressure of M=lining cutting tire reduces, E=0.1～0.5 MPa, wanting according to engineering precision
Seek the concrete numerical value of selection；
Step 7: by let out carry put inflation by the way of the carcass pressure of lining cutting tire adjusted the numerical value c ' of upper level,
C '={ c-E × (M-1) } MPa
The number of times that wherein in M=step 6, the carcass pressure of lining cutting tire reduces, E=0.1～0.5 MPa；
I.e. obtain minimal support power d needed for adjoining rock stability '=c ' MPa.
E is preferably 0.1 MPa.
F is preferably 0.5 MPa.
Let out to carry and be set to automatic decompression valve.
What the present invention provided a kind of monitors the method for minimal support power needed for adjoining rock stability, can solve surrouding rock deformation and reach
The problem of required supporting power more difficult mensuration when stablizing, can be according to the requirement of engineering precision, accurately monitoring surrouding rock deformation country rock institute
The minimal support power needed, simple.
Detailed description of the invention
As a example by 1 year monitoring surrouding rock deformation situation of certain high ground stress soft rock stress tunnel engineering, this engineering surrounding edge deformation monitoring is tied
Fruit and tire internal gas pressure delta data, as shown in table 1:
Tunnel Surrounding Rocks Deformation Monitoring Data after certain engineering soft rock section tunnel excavation of table 1
Note: the stable required minimal support power of the surrouding rock deformation of this engineering is 2..8Mpa, is easy to prison as a example by this engineering
Survey the narration of minimal support power method.
By the data of above-mentioned monitoring surrouding rock deformation, the 7th～JIUYUE deform average rate (-0.009mm/d2) can obtain
This engineering first 6 months is the main time section phase of Rock Creep, and surrouding rock deformation subsequently is gradually stable, is averagely added by deforming in table 1
Speed, day deformation Mean Speed and total deformation can obtain, and substantially think that at 10th month surrouding rock deformation reaches stable.
To gas in the tire of monitoring after the tunnel lining structure of the Wall Rock of Tunnel installation never dismounting lining cutting tire of above-mentioned engineering
Pressure delta data is as shown in table 2:
Gas in the tire that the Wall Rock of Tunnel of the above-mentioned engineering of table 2 is monitored after installing the tunnel lining structure never removing lining cutting tire
Pressure delta data
From Table 2, it can be seen that surrouding rock deformation shape reaches stable recording carcass pressure a=4Mpa.
Being drawn by on-the-spot actual measurement, the stable required minimal support power of the surrouding rock deformation of this engineering is 2.8Mpa.
Embodiment one
A kind of monitoring the method for minimal support power needed for adjoining rock stability, the method comprises the following steps:
Step 1: install the tunnel lining structure never removing lining cutting tire on country rock: described tunnel lining structure includes
Steel arch-shelf, is provided with lining cutting tire between steel arch-shelf and country rock, be filled with air in lining cutting tire, and lining cutting tire is provided with to let out and carries
Put, let out and carry the transfer port that bottom of device is provided with aerofluxus, gas transmission is integrated, steel arch-shelf and lining cutting tire by steel strand wires and country rock
Anchor pole be fixed on country rock；
Step 2: monitoring surrouding rock deformation rate of acceleration, (" railway tunnel shotcrete bolt construction method technology is advised according to corresponding technical specification
Model ") determine the time when surrouding rock deformation of step 1 reaches stable；
Step 3: the carcass pressure a=4Mpa of the recording step 2 lining cutting tire when surrouding rock deformation reaches stable；
Step 4: coarse adjustment: utilize to let out to carry to put and the carcass pressure of lining cutting tire is reduced F MPa, check to let out to carry whether put
There is phenomenon of losing heart, if there is not phenomenon of losing heart, then checking again after carcass pressure minimizing F MPa of lining cutting tire,
Repeat above-mentioned minimizing carcass pressure and whether the step of gas leakage occurs, putting the disappointing phenomenon of generation until letting out to carry, recording now
The numerical value of the carcass pressure b of lining cutting tire:
B=(a-F × N) MPa=(4-0.5 × 3) MPa=2.5 MPas
The number of times that wherein the carcass pressure of N=lining cutting tire reduces, F=0.5 MPa；
Step 5: by let out carry put inflation by the way of the carcass pressure of lining cutting tire adjusted the numerical value c of upper level,
C={a-F × (N-1) } MPa={ 4-0.5 × (3-1) } MPa=3 MPas
The number of times that wherein in N=step 4, the carcass pressure of lining cutting tire reduces, F=0.5 MPa；
I.e. obtain minimal support power d=c=3 MPa needed for adjoining rock stability.
Embodiment two
Step 1-5 is with embodiment one
Step 6: fine setting: utilize to let out to carry to put and the carcass pressure of the lining cutting tire through step 5 is reduced E MPa, check
Let out and carry to put whether phenomenon of losing heart occurs, if there is not phenomenon of losing heart, then by after carcass pressure minimizing E MPa of lining cutting tire
Checking again, repeat above-mentioned minimizing carcass pressure and whether the step of gas leakage occurs, putting the disappointing phenomenon of generation until letting out to carry,
The numerical value of the carcass pressure b ' of record lining cutting tire now:
B '=(c-E × M) MPa=(3-0.1 × 3) MPa=2.7 MPas
The number of times that wherein the carcass pressure of M=lining cutting tire reduces, E=0.1 MPa；
Step 7: by let out carry put inflation by the way of the carcass pressure of lining cutting tire adjusted the numerical value c ' of upper level,
C '={ c-E × (M-1) } MPa={ 3-0.1 × (3-1) } MPa=2.8 MPas
The number of times that wherein in M=step 6, the carcass pressure of lining cutting tire reduces, E=0.1 MPa；
I.e. obtain minimal support power d needed for adjoining rock stability '=c ' MPa=2.8 MPas.
Let out to carry and be set to automatic decompression valve.
Embodiment three
A kind of monitoring the method for minimal support power needed for adjoining rock stability, the method comprises the following steps:
Step 1: install the tunnel lining structure never removing lining cutting tire on country rock: described tunnel lining structure includes
Steel arch-shelf, is provided with lining cutting tire between steel arch-shelf and country rock, be filled with air in lining cutting tire, and lining cutting tire is provided with to let out and carries
Put, let out and carry the transfer port that bottom of device is provided with aerofluxus, gas transmission is integrated, steel arch-shelf and lining cutting tire by steel strand wires and country rock
Anchor pole be fixed on country rock；
Step 2: monitoring surrouding rock deformation rate of acceleration, (" railway tunnel shotcrete bolt construction method technology is advised according to corresponding technical specification
Model ") determine the time when surrouding rock deformation of step 1 reaches stable；
Step 3: the carcass pressure a=4Mpa of the recording step 2 lining cutting tire when surrouding rock deformation reaches stable；
Step 4: coarse adjustment: utilize to let out to carry to put and the carcass pressure of lining cutting tire is reduced F MPa, check to let out to carry whether put
There is phenomenon of losing heart, if there is not phenomenon of losing heart, then checking again after carcass pressure minimizing F MPa of lining cutting tire,
Repeat above-mentioned minimizing carcass pressure and whether the step of gas leakage occurs, putting the disappointing phenomenon of generation until letting out to carry, recording now
The numerical value of the carcass pressure b of lining cutting tire:
B=(a-F × N) MPa=(4-2 × 1) MPa=2 MPas
The number of times that wherein the carcass pressure of N=lining cutting tire reduces, F=2 MPa；
Step 5: by let out carry put inflation by the way of the carcass pressure of lining cutting tire adjusted the numerical value c of upper level,
C={a-F × (N-1) } MPa={ 4-2 × (1-1) } MPa=4 MPas
The number of times that wherein in N=step 4, the carcass pressure of lining cutting tire reduces, F=2 MPa；
Step 6: fine setting: utilize to let out to carry to put and the carcass pressure of the lining cutting tire through step 5 is reduced E MPa, check
Let out and carry to put whether phenomenon of losing heart occurs, if there is not phenomenon of losing heart, then by after carcass pressure minimizing E MPa of lining cutting tire
Checking again, repeat above-mentioned minimizing carcass pressure and whether the step of gas leakage occurs, putting the disappointing phenomenon of generation until letting out to carry,
The numerical value of the carcass pressure b ' of record lining cutting tire now:
B '=(c-E × M) MPa=(4-0.4 × 4) MPa=2.4 MPas
The number of times that wherein the carcass pressure of M=lining cutting tire reduces, E=0.4 MPa；
Step 7: by let out carry put inflation by the way of the carcass pressure of lining cutting tire adjusted the numerical value c ' of upper level,
C '={ c-E × (M-1) } MPa={ 4-0.4 × (4-1) } MPa=2.8 MPas
The number of times that wherein in M=step 6, the carcass pressure of lining cutting tire reduces, E=0.4 MPa；
I.e. obtain minimal support power d needed for adjoining rock stability '=c ' MPa=2.8 MPas.
Let out to carry and be set to automatic decompression valve.
Embodiment four
A kind of monitoring the method for minimal support power needed for adjoining rock stability, the method comprises the following steps:
Step 1: install the tunnel lining structure never removing lining cutting tire on country rock: described tunnel lining structure includes
Steel arch-shelf, is provided with lining cutting tire between steel arch-shelf and country rock, be filled with air in lining cutting tire, and lining cutting tire is provided with to let out and carries
Put, let out and carry the transfer port that bottom of device is provided with aerofluxus, gas transmission is integrated, steel arch-shelf and lining cutting tire by steel strand wires and country rock
Anchor pole be fixed on country rock；
Step 2: monitoring surrouding rock deformation rate of acceleration, (" railway tunnel shotcrete bolt construction method technology is advised according to corresponding technical specification
Model ") determine the time when surrouding rock deformation of step 1 reaches stable；
Step 3: the carcass pressure a=4Mpa of the recording step 2 lining cutting tire when surrouding rock deformation reaches stable；
Step 4: coarse adjustment: utilize to let out to carry to put and the carcass pressure of lining cutting tire is reduced F MPa, check to let out to carry whether put
There is phenomenon of losing heart, if there is not phenomenon of losing heart, then checking again after carcass pressure minimizing F MPa of lining cutting tire,
Repeat above-mentioned minimizing carcass pressure and whether the step of gas leakage occurs, putting the disappointing phenomenon of generation until letting out to carry, recording now
The numerical value of the carcass pressure b of lining cutting tire:
B=(a-F × N) MPa=(4-3 × 1) MPa=1 MPa
The number of times that wherein the carcass pressure of N=lining cutting tire reduces, F=3 MPa；
Step 5: by let out carry put inflation by the way of the carcass pressure of lining cutting tire adjusted the numerical value c of upper level,
C={a-F × (N-1) } MPa={ 4-1 × (1-1) } MPa=4 MPas
The number of times that wherein in N=step 4, the carcass pressure of lining cutting tire reduces, F=4 MPa；
Step 6: fine setting: utilize to let out to carry to put and the carcass pressure of the lining cutting tire through step 5 is reduced E MPa, check
Let out and carry to put whether phenomenon of losing heart occurs, if there is not phenomenon of losing heart, then by after carcass pressure minimizing E MPa of lining cutting tire
Checking again, repeat above-mentioned minimizing carcass pressure and whether the step of gas leakage occurs, putting the disappointing phenomenon of generation until letting out to carry,
The numerical value of the carcass pressure b ' of record lining cutting tire now:
B '=(c-E × M) MPa=(4-0.5 × 3) MPa=2.5 MPas
The number of times that wherein the carcass pressure of M=lining cutting tire reduces, E=0.5 MPa；
Step 7: by let out carry put inflation by the way of the carcass pressure of lining cutting tire adjusted the numerical value c ' of upper level,
C '={ c-E × (2-1) } MPa={ 4-0.5 × (3-1) } MPa=3 MPas
The number of times that wherein in M=step 6, the carcass pressure of lining cutting tire reduces, E=0.5 MPa；
I.e. obtain minimal support power d needed for adjoining rock stability '=c ' MPa=3 MPas.
Let out to carry and be set to automatic decompression valve.
Embodiment one-four is calculated minimal support power d needed for the adjoining rock stability of gained ' numerical value and actual measurement of engineering institute
The minimal support power numerical value obtained compares discovery, and the method that the present invention provides can accurately monitor the minimum needed for surrouding rock deformation country rock
Supporting power, simple.
In above-described embodiment one-four, the structure of step 1 and installation method are Chinese invention patent CN201510101208.7
Disclosed technical scheme, invention entitled " a kind of tunnel lining structure with never dismounting lining cutting tire and construction and installation thereof
Method "；
The carcass pressure used tool measuring lining cutting tire is air gauge.
Claims (5)
1. monitor the method for minimal support power needed for adjoining rock stability for one kind, it is characterised in that the method comprises the following steps:
Step 1: install the tunnel lining structure never removing lining cutting tire on country rock: described tunnel lining structure includes steel arch
Frame, is provided with lining cutting tire between steel arch-shelf and country rock, be filled with air in lining cutting tire, and lining cutting tire is provided with to let out to carry and puts, and lets out
Carry the transfer port that bottom of device is provided with aerofluxus, gas transmission is integrated, steel arch-shelf and lining cutting tire by the anchor on steel strand wires and country rock
Bar is fixed on country rock；
According to corresponding technical specification, step 2: monitoring surrouding rock deformation rate of acceleration, when determining that the surrouding rock deformation of step 1 reaches stable
Time；
Step 3: the numerical value of the carcass pressure a of the recording step 2 lining cutting tire when surrouding rock deformation reaches stable；
Step 4: coarse adjustment: utilize to let out to carry to put and the carcass pressure of lining cutting tire is reduced F MPa, check to let out to carry to put whether occur
Disappointing phenomenon, if there is not phenomenon of losing heart, then checking after carcass pressure minimizing F MPa of lining cutting tire again, repeating
Above-mentioned minimizing carcass pressure the and whether step of gas leakage occurs, puts generation lose heart phenomenon until letting out to carry, record lining cutting now
The numerical value of the carcass pressure b of tire:
B=(a-F × N) MPa
The number of times that wherein the carcass pressure of N=lining cutting tire reduces, F=0.5～3 MPas；
Step 5: by let out carry put inflation by the way of the carcass pressure of lining cutting tire adjusted the numerical value c of upper level,
C={a-F × (N-1) } MPa
The number of times that wherein in N=step 4, the carcass pressure of lining cutting tire reduces, F=0.5～3 MPas；
I.e. obtain minimal support power d=c MPa needed for adjoining rock stability.
The most according to claim 1 a kind of monitor the method for minimal support power needed for adjoining rock stability, it is characterised in that the party
Method also includes step 6 and step 7,
Step 6: fine setting: utilize to let out to carry to put and the carcass pressure of the lining cutting tire through step 5 is reduced E MPa, check and let out load
Whether device there is phenomenon of losing heart, if there is not phenomenon of losing heart, then enters after carcass pressure minimizing E MPa of lining cutting tire again
Row checks, repeats above-mentioned minimizing carcass pressure and whether the step of gas leakage occurs, and puts the disappointing phenomenon of generation, record until letting out to carry
The numerical value of the carcass pressure b ' of lining cutting tire now:
B '=(c-E × M) MPa
The number of times that wherein the carcass pressure of M=lining cutting tire reduces, E=0.1～0.5 MPa；
Step 7: by let out carry put inflation by the way of the carcass pressure of lining cutting tire adjusted the numerical value c ' of upper level,
C '={ c-E × (M-1) } MPa
The number of times that wherein in M=step 6, the carcass pressure of lining cutting tire reduces, E=0.1～0.5 MPa；
I.e. obtain minimal support power d needed for adjoining rock stability '=c ' MPa.
The most according to claim 2 a kind of monitor the method for minimal support power needed for adjoining rock stability, it is characterised in that: E=
0.1 MPa.
The most according to claim 1 a kind of monitor the method for minimal support power needed for adjoining rock stability, it is characterised in that: F=
0.5 MPa.
The most according to claim 1 a kind of monitor the method for minimal support power needed for adjoining rock stability, it is characterised in that: let out load
Device is automatic decompression valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610564935.1A CN106197802B (en) | 2016-07-18 | 2016-07-18 | A kind of method of minimal support power needed for monitoring adjoining rock stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610564935.1A CN106197802B (en) | 2016-07-18 | 2016-07-18 | A kind of method of minimal support power needed for monitoring adjoining rock stability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106197802A true CN106197802A (en) | 2016-12-07 |
| CN106197802B CN106197802B (en) | 2019-02-26 |
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ID=57493846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610564935.1A Active CN106197802B (en) | 2016-07-18 | 2016-07-18 | A kind of method of minimal support power needed for monitoring adjoining rock stability |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091113A (en) * | 2017-06-30 | 2017-08-25 | 湖南科技大学 | Determine different degrees of water-rich and tunnel tunnel face calculation method for stability under drilling depth |
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|---|---|---|---|---|
| US4895480A (en) * | 1987-09-11 | 1990-01-23 | Signode Corporation | Method and apparatus for formation of a tunnel lining |
| CN104832186A (en) * | 2015-03-09 | 2015-08-12 | 三峡大学 | Tunnel lining structure with eternally un-dismountable lining tire and construction installation method of tunnel lining structure |
| CN105138767A (en) * | 2015-08-23 | 2015-12-09 | 北京工业大学 | Deep-buried asymmetric closely spaced tunnel surrounding rock pressure calculation method |
| CN205117355U (en) * | 2015-10-12 | 2016-03-30 | 三峡大学 | Branch storehouse formula sand gas that replaces tunnel just to serve as a contrast closes and fills lining cutting structure |
-
2016
- 2016-07-18 CN CN201610564935.1A patent/CN106197802B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4895480A (en) * | 1987-09-11 | 1990-01-23 | Signode Corporation | Method and apparatus for formation of a tunnel lining |
| CN104832186A (en) * | 2015-03-09 | 2015-08-12 | 三峡大学 | Tunnel lining structure with eternally un-dismountable lining tire and construction installation method of tunnel lining structure |
| CN105138767A (en) * | 2015-08-23 | 2015-12-09 | 北京工业大学 | Deep-buried asymmetric closely spaced tunnel surrounding rock pressure calculation method |
| CN205117355U (en) * | 2015-10-12 | 2016-03-30 | 三峡大学 | Branch storehouse formula sand gas that replaces tunnel just to serve as a contrast closes and fills lining cutting structure |
Non-Patent Citations (2)
| Title |
|---|
| 吴忠善等: "南京纬三路过江通道泥水盾构带压开舱开挖面最小支护压力确定", 《中国港湾建设》 * |
| 景海河等: "软岩巷道支护荷载的确定方法", 《中国矿业大学学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091113A (en) * | 2017-06-30 | 2017-08-25 | 湖南科技大学 | Determine different degrees of water-rich and tunnel tunnel face calculation method for stability under drilling depth |
| CN107091113B (en) * | 2017-06-30 | 2019-04-16 | 湖南科技大学 | Determine tunnel tunnel face calculation method for stability under different degrees of water-rich and drilling depth |
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| Publication number | Publication date |
|---|---|
| CN106197802B (en) | 2019-02-26 |
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Effective date of registration: 20201223 Address after: Building 2, No. 3, Fuqian Road, Hailing District, Taizhou City, Jiangsu Province Patentee after: Taizhou Haitong Asset Management Co.,Ltd. Address before: Unit 2414-2416, main building, no.371, Wushan Road, Tianhe District, Guangzhou City, Guangdong Province Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20201223 Address after: Unit 2414-2416, main building, no.371, Wushan Road, Tianhe District, Guangzhou City, Guangdong Province Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: 443002 No. 8, University Road, Yichang, Hubei Patentee before: CHINA THREE GORGES University |