CN109918851A - A kind of live quickly appraising model and the method for deep tunnel rock burst hazard scale - Google Patents
A kind of live quickly appraising model and the method for deep tunnel rock burst hazard scale Download PDFInfo
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- CN109918851A CN109918851A CN201910263803.9A CN201910263803A CN109918851A CN 109918851 A CN109918851 A CN 109918851A CN 201910263803 A CN201910263803 A CN 201910263803A CN 109918851 A CN109918851 A CN 109918851A
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- 239000011435 rock Substances 0.000 title claims abstract description 120
- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000006378 damage Effects 0.000 claims abstract description 15
- 238000012887 quadratic function Methods 0.000 claims description 8
- 230000004323 axial length Effects 0.000 claims description 3
- 238000012886 linear function Methods 0.000 claims description 3
- 238000012888 cubic function Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000004458 analytical method Methods 0.000 abstract description 4
- 238000011156 evaluation Methods 0.000 abstract description 4
- 241001269238 Data Species 0.000 abstract description 3
- 238000012512 characterization method Methods 0.000 abstract description 3
- 230000007812 deficiency Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 11
- 230000035772 mutation Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009429 distress Effects 0.000 description 1
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- 238000005381 potential energy Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
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Abstract
The invention discloses a kind of quick appraising model in the scene of deep tunnel rock burst hazard scale and methods, it is related to technical field of tunnel construction, it is layouted by choosing quick-fried hole cross section, record layouted coordinate, coordinate is fitted, the characteristics of studying quick-fried hole cross section and vertical section contour curve establishes the quick-fried hole model of geometry, estimates quick-fried hole disaster scale.The present invention passes through to the location of limited measuring point in the quick-fried hole of tunnel surrounding rock burst, rock mass damage depth, measuring point spacing from etc. master datas measurement and Fitting Analysis on the basis of, the geometry form general model of the approximate quick-fried hole three-dimensional configuration of characterization rock burst is capable of in building, to it is further proposed that the mathematics of quick-fried hole scale estimates formula, it can be overcome using the new method or be reduced and the quick-fried possible deviation of hole scale is calculated according to the ejection sillar side of slagging tap amount, make up the deficiency of current used method, improve the estimation precision of the quick-fried hole scale of rock burst, more reasonable reliable support is provided for the accurate evaluation of rock burst hazard severity.
Description
Technical field
The present invention relates to technical field of tunnel construction, in particular to the scene of a kind of deep tunnel rock burst hazard scale is quickly
Appraising model and method.
Background technique
Rock burst is buried hard rock tunnel one of the most common type power type geological disaster, is gathered under excavation or other external disturbances
The phenomenon that flexible deformation potential energy of the product in rock mass fiercely discharges suddenly, rock is caused to burst and eject.It is often with " prominent
The mode of so attack " makes underground engineering that catastrophic failure occur, seriously threatens the safety of construction personnel and equipment, influence to construct
Progress, but also will cause underground engineering backbreak, supporting failure.
The intensity for the rock mass damage that rock burst intensity grade difference rock burst is caused, rockburst intensity are generallyd use in engineering
An important measurement index is the collapse dept in the quick-fried hole of rock burst based on classification, and collapse dept can reflect to a certain extent
The destruction scale of rock burst, but for depth, hole wall rock mass damage surface area caused by rock burst and the product conduct of quick-fried pit body
The measurement index of multi-dimentional scale more rationally can comprehensively characterize the destruction scale of rock burst, and rock mass damage surface area is got over quick-fried hole scale
Greatly, sillar side's amount of ejection is more, and caused Consequential Loss is often more serious.On the whole, Consequential Loss caused by rock burst
Severity, which destroys scale with rock burst, has significant correlation.Therefore, prepare destruction scale (including the hole wall country rock of estimation rock burst
Destroy surface area and the quick-fried pit body product of rock burst) it is of great significance for measuring rock burst distress severity and Disaster control.
Theoretically, the rule in the quick-fried hole of rock burst can be substantially judged by side's amount that estimation rock burst destroys generated sillar accumulation body
Mould, but rock burst destroy sillar ejection range it is wide, the be scattered position of distribution of sillar is not concentrated, and is easy to excavate rock with site operation
Slag phase mixing, is easy to cause the quick-fried pit body obtained to accumulate in uncontrollable error, it is seen that is calculated according to the ejection sillar side of slagging tap amount
Rock burst, which destroys scale, has certain difficulty, so a kind of scene of deep tunnel rock burst hazard scale is just needed quickly to estimate mould
Type and method.
Summary of the invention
The embodiment of the invention provides a kind of quick appraising model in the scene of deep tunnel rock burst hazard scale and methods, use
To solve problems of the prior art.
A kind of quick appraising model in scene of deep tunnel rock burst hazard scale, comprising:
One, the quick-fried hole model of socket type
(1), when rock burst point hole wall is linear type, the quick-fried pit-hole wall surrounding rock failure surface area S of socket type1And quick-fried pit body product
V1Approximate estimation model difference it is as follows:
S1=ab
Wherein, the quick-fried hole of socket type is denoted as a along tunnel axial length, and quick-fried hole height of the quick-fried hole of socket type on the wall of hole is denoted as b, quick-fried hole
Depth be denoted as h；Axial for X-axis with tunnel, excavating direction is that X-axis is positive；X-axis rotates clockwise 90 ° as Y-axis, and hole wall is recessed
Side is that Y-axis is positive；Vertical X axis and Y-axis, tunnel vault direction are that Z axis is positive to Z axis simultaneously, tunnel portal to quick-fried hole lower limit be
Coordinate origin O, to constitute constructing tunnel engineering coordinate system；
(2), when rock burst point hole wall is arc, the quick-fried pit-hole wall surrounding rock failure surface area S of socket type2And quick-fried pit body product V2
Appraising model difference it is as follows:
Wherein: r is the radius of arc, and Δ V is the volume of the part ikm:
Two, the quick-fried hole model of " V " font
(1), when rock burst point hole wall is linear type, the quick-fried pit-hole wall surrounding rock failure surface area S of socket type3And quick-fried pit body product
V3Approximate estimation model difference it is as follows:
Wherein, the quick-fried hole of " V " font is a along tunnel axial length1, quick-fried hole height maxima on the quick-fried pit-hole wall of " V " font
b1, minimum value b2；Quick-fried hole depth maximum value h1, minimum value h2；
(2), when rock burst point hole wall is arc, the quick-fried pit-hole wall surrounding rock failure surface area S of socket type4And quick-fried pit body product V4
Appraising model difference it is as follows:
Preferably, the establishment of coordinate system mode of the quick-fried hole model of " V " font and the coordinate system of the quick-fried hole model of the socket type
It is identical to establish mode.
A kind of a kind of deep tunnel rock burst hazard scale of the quick appraising model in the scene of deep tunnel rock burst hazard scale
Live Method of fast estimating characterized by comprising
It is quick-fried hole left margin Step 1: the cross section where origin O is labeled as No. I section, since No. I section, edge
X-axis forward direction successively chooses II, III, No. IV cross section Bao Keng, and quick-fried hole right side boundary is as No. V cross section；
Step 2: arranging 5 control points on each cross section: being respectively the terminal A up and down and E in quick-fried hole cross section, cross
The deepest point C in quick-fried hole on section, and two o'clock B, D between deepest point and endpoint；
Step 3: the coordinate at record control point, is fitted these coordinates, fitting result is analyzed, obtains quick-fried pitted surface wheel
The characteristics of wide curve, establishes quick-fried hole Quantity customizing model；
Step 4: calculating hole wall rock mass damage surface area S and quick-fried pit body product V according to quick-fried hole Quantity customizing model.
Preferably, the quick-fried pitted surface contour curve is quadratic function form or cubic function when the quick-fried hole of rock burst is socket type；
Preferably, the quick-fried pitted surface contour curve is linear function form when the quick-fried hole of rock burst is " V " font.
Preferably, the quick-fried hole Quantity customizing model includes the quick-fried hole model of socket type and the quick-fried hole model of " V " font.
The invention has the advantages that: the present invention to pass through to the location of limited measuring point in the quick-fried hole of tunnel surrounding rock burst, rock
Body collapse dept, measuring point spacing from etc. master datas measurement and Fitting Analysis on the basis of, building being capable of approximate characterization rock burst
The geometry form general model of quick-fried hole three-dimensional configuration, so that it is further proposed that the mathematics estimation formula of quick-fried hole scale, utilizes the new method
It can overcome or reduce and the quick-fried possible deviation of hole scale is calculated according to the ejection sillar side of slagging tap amount, make up current used method
Deficiency, improve the quick-fried hole scale of rock burst estimation precision, for rock burst hazard severity accurate evaluation provide it is more reasonable can
The support leaned on.
Detailed description of the invention
Fig. 1 is the quick appraising model in scene and the side of a kind of deep tunnel rock burst hazard scale provided in an embodiment of the present invention
The structural schematic diagram of the length a in the quick-fried hole of the socket type of method, height b, depth h；
Fig. 2 is the quick appraising model in scene and the side of a kind of deep tunnel rock burst hazard scale provided in an embodiment of the present invention
The quick-fried hole three dimensional structure diagram of the nest shape of method；
Fig. 3 is the quick appraising model in scene and the side of a kind of deep tunnel rock burst hazard scale provided in an embodiment of the present invention
The structural schematic diagram of the quick-fried hole cross section control point arrangement of method；
Fig. 4 is the quick appraising model in scene and the side of a kind of deep tunnel rock burst hazard scale provided in an embodiment of the present invention
The structural schematic diagram of quick-fried hole scale when the different hole walls of method；
Fig. 5 is the quick appraising model in scene and the side of a kind of deep tunnel rock burst hazard scale provided in an embodiment of the present invention
The structural schematic diagram of the length a in the quick-fried hole of " V " font of method, height b, depth h；
Fig. 6 is the quick appraising model in scene and the side of a kind of deep tunnel rock burst hazard scale provided in an embodiment of the present invention
The quick-fried hole three dimensional structure diagram of " V " font of method；
Fig. 7 is the quick appraising model in scene and the side of a kind of deep tunnel rock burst hazard scale provided in an embodiment of the present invention
The positional structure schematic diagram that the rock burst of method occurs；
Fig. 8 is the quick appraising model in scene and the side of a kind of deep tunnel rock burst hazard scale provided in an embodiment of the present invention
The structural schematic diagram of the arrangement at the control point of method；
Fig. 9 is the quick appraising model in scene and the side of a kind of deep tunnel rock burst hazard scale provided in an embodiment of the present invention
The structural schematic diagram of 2 fitting result of section of method；
Figure 10 be a kind of deep tunnel rock burst hazard scale provided in an embodiment of the present invention scene quickly appraising model and
The structural schematic diagram of the vertical section fitting result of method；
Figure 11 be a kind of deep tunnel rock burst hazard scale provided in an embodiment of the present invention scene quickly appraising model and
The structural schematic diagram of relationship between the quick-fried hole cross section of method.
Specific embodiment
Below with reference to the attached drawing in inventive embodiments, technical solution in the embodiment of the present invention carries out clear, complete
Description, it is to be understood that the protection scope of the present invention is not limited by the specific implementation manner.
Referring to Fig.1-11, the present invention provides a kind of quick appraising model in the scene of deep tunnel rock burst hazard scale and sides
Method quickly estimates rock burst hazard scale using hole wall rock mass damage surface area and quick-fried pit body product, comprising:
One, the quick-fried hole model of socket type
(1), when rock burst point hole wall is linear type, the quick-fried pit-hole wall surrounding rock failure surface area S of socket type1And quick-fried pit body product
V1Approximate estimation model difference it is as follows:
S1=ab
Wherein, the quick-fried hole of socket type is denoted as a along tunnel axial length, and quick-fried hole height of the quick-fried hole of socket type on the wall of hole is denoted as b, quick-fried hole
Depth be denoted as h；Axial for X-axis with tunnel, excavating direction is that X-axis is positive；X-axis rotates clockwise 90 ° as Y-axis, and hole wall is recessed
Side is that Y-axis is positive；Vertical X axis and Y-axis, tunnel vault direction are that Z axis is positive to Z axis simultaneously, tunnel portal to quick-fried hole lower limit be
Coordinate origin O, to constitute constructing tunnel engineering coordinate system；
(2), when rock burst point hole wall is arc, the quick-fried pit-hole wall surrounding rock failure surface area S of socket type2And quick-fried pit body product V2
Appraising model difference it is as follows:
Wherein: r is the radius of arc, and Δ V is the volume of the part ikm:
Two, the quick-fried hole model of " V " font
(1), when rock burst point hole wall is linear type (horse-shoe tunnel straight flange wall), the quick-fried pit-hole wall surrounding rock failure of socket type
Surface area S3And quick-fried pit body product V3Approximate estimation model difference it is as follows:
Wherein, the quick-fried hole of " V " font is a along tunnel axial length1, quick-fried hole height maxima on the quick-fried pit-hole wall of " V " font
b1, minimum value b2；Quick-fried hole depth maximum value h1, minimum value h2；
(2), when rock burst point hole wall is arc (horse-shoe tunnel vault or circular tunnel), the quick-fried pit-hole wall of socket type encloses
Rock destroys surface area S4And quick-fried pit body product V4Appraising model difference it is as follows:
The establishment of coordinate system mode of the quick-fried hole model of " V " font and the establishment of coordinate system mode of the quick-fried hole model of the socket type
It is identical.
A kind of a kind of deep tunnel rock burst hazard scale of the quick appraising model in the scene of deep tunnel rock burst hazard scale
Live Method of fast estimating characterized by comprising
It is quick-fried hole left margin Step 1: the cross section where origin O is labeled as No. I section, since No. I section, edge
X-axis forward direction successively chooses II, III, No. IV cross section Bao Keng, and quick-fried hole right side boundary is as No. V cross section；
Step 2: arranging 5 control points on each cross section: being respectively the terminal A up and down and E in quick-fried hole cross section, cross
The deepest point C in quick-fried hole on section, and two o'clock B, D between deepest point and endpoint；
Step 3: the coordinate at record control point, is fitted these coordinates, fitting result is analyzed, obtains quick-fried pitted surface wheel
The characteristics of wide curve, establishes quick-fried hole Quantity customizing model；
Step 4: calculating hole wall rock mass damage surface area S and quick-fried pit body product V according to quick-fried hole Quantity customizing model.
When the quick-fried hole of rock burst is socket type, the quick-fried pitted surface contour curve is quadratic function form；When the quick-fried hole of rock burst is " V " word
When type, the quick-fried pitted surface contour curve is linear function form.
The quick-fried hole Quantity customizing model includes the quick-fried hole model of socket type and the quick-fried hole model of " V " font.
Specific embodiment:
(1), the quick-fried hole of horse-shoe tunnel socket type
25 days, morning 3:00 or so May in 2011, in Jinping hydropower station 2# diversion tunnel (benching tunnelling method construction) 9+
During 197~9+212 sections carry out bottomed construction, strong rock burst occurs for tunnel up/down steps junction, leads to this section of branch
Shield failure, abutment wall rock mass largely collapses, and forms large area and collapses chamber, and the sillar ejected causes the operation people of two hot work in progress
Member is injured.
After rock burst stops, the range in quick-fried hole is measured, quick-fried hole length is about 15m, and quick-fried hole height is about 4m, according to preceding
The method of text is layouted in quick-fried hole, amounts to 25 control points,
Section I and section V are the right boundaries in quick-fried hole, and rock burst depth as shallow, rule is unobvious, respectively to it
The control point coordinates remaininged on 3 sections are fitted, the results showed that it obeys quadratic function form, and degree of fitting exists
90% or more, it is seen then that quick-fried hole cross-sectional outling curve can be used second-degree parabola and be portrayed.3 sections are observed, quick-fried hole is most
Big depth is not in the same height, and the height of the quick-fried hole depth capacity of II, No. III section is in the half (2m) of quick-fried hole total height
Near, the height tolerance of the quick-fried hole depth capacity of No. IV section is larger.According to mathematical knowledge, maximum of the parabola in identical section
It is worth identical, then definite integral of the function in the section is identical, carries out quick-fried hole cross-sectional area with this method and calculates, can be by No. IV section
The height of quick-fried hole depth capacity is moved to the height equal-height position with II, No. III depth capacity, does not change the area of No. IV section, no
The estimation to quick-fried hole scale is influenced, the coordinate at control point at quick-fried hole depth capacity adjusted is fitted, it is horizontal to study quick-fried hole
Where section depth capacity the characteristics of vertical section contour curve.
The result shows that it obeys quadratic function form, degree of fitting equal 92%, it is seen then that it is horizontal to portray quick-fried hole with second-degree parabola
The contour curve of vertical section is reasonable where section depth capacity.Rock burst when quadratic function form is obeyed according to fitting result
Quantity customizing formula calculates hole wall rock mass damage surface area (S) and quick-fried pit body product (V)
Surrounding rock failure surface area:
S=ab=15 × 4=60 (m2)
Quick-fried pit body product:
(2) circular tunnel socket type rock burst
On April 9th, 2011, Jinping hydropower station the east 1# diversion tunnel are got out of a predicament or an embarrassing situation in digging process, 9+255~9+
Medium~strong rock burst occurs for abutment wall on the left of 265 pile No. sections, leads to this section of supporting failure, and abutment wall rock mass largely collapses, and is formed big
Area collapses chamber.
After rock burst stops, quick-fried hole range is measured, quick-fried hole length is about 10m, and quick-fried hole height is about 4.5m, in quick-fried hole
Inside layout, quick-fried hole depth capacity 1.9m.
The coordinate at control point is fitted, the results showed that it obeys quadratic function form, and degree of fitting is 89% or more.It presses
Rock burst Quantity customizing formula when obeying quadratic function form according to fitting result calculates hole wall rock mass damage surface area (S) and quick-fried hole
Volume (V)
Hole wall rock mass damage surface area:
Quick-fried pit body product:
Estimate the formula of quick-fried hole scale primarily directed to the most common socket type and the quick-fried hole of " V " font, quick-fried hole in Practical Project
Form may be multiplicity, need flexibly to use above-mentioned formula.
When calculating quick-fried pit body product for quick-fried hole, both quick-fried hole can be divided into three quick-fried holes of socket type, the quick-fried hole intersection of three nest shapes
There are the mutation of quick-fried hole height, calculate separately three sections of quick-fried pit body product summations；It is quick-fried quick-fried hole can also to be divided into two " V " fonts
Hole, there are depth mutation, the volume summation that segmentation calculates the quick-fried hole of two " V " fonts can obtain quick-fried hole total volume for quick-fried hole junction.
It is also possible to encounter the special quick-fried hole that can not be segmented in Practical Project, estimation establishes quick-fried hole model, estimates quick-fried hole scale
Formula failure, need to establish new evaluation method.Estimation for rock burst scale, what is be primarily upon should be that quick-fried pit body is accumulated
The relationship of rectangular cross section, nest shape section, V-arrangement section and special quick-fried hole section is divided into three kinds by the upper limit, Figure 11.
The section in irregular quick-fried hole is most of under the quick-fried hole of V-arrangement in Figure 11 (a), only small part, exceeds V-shaped line frame,
It is contemplated that V-frame is used, the upper limit as complicated quick-fried hole cross section in this case.The quick-fried hole section of complexity in Figure 11 (b) is in V
Shape frame is inside and outside to float, as the case may be, when the area in V-shaped edge frame implosion hole is more than or equal to the quick-fried hole cross-sectional area outside V-arrangement
When, V-shaped line frame can be used, as the upper limit in complicated quick-fried hole cross section in this case, or be based on security consideration, directly take phase
Nest shape section with depth capacity is as the complicated quick-fried upper limit for cheating cross section.Figure 11 (c) is identical with Figure 11 (b) situation, according to tool
Can the quick-fried hole of body situation analysis nest shape be used as the upper limit, or directly use rectangular shaped rim as the upper limit in complicated quick-fried hole cross section.
In conclusion the present invention passes through to the location of limited measuring point in the quick-fried hole of tunnel surrounding rock burst, rock mass damage
Depth, measuring point spacing from etc. master datas measurement and Fitting Analysis on the basis of, building being capable of the approximate quick-fried hole three of characterization rock burst
The geometry form general model of form is tieed up, so that it is further proposed that the mathematics estimation formula of quick-fried hole scale, can overcome using the new method
Or reduce and the quick-fried possible deviation of hole scale is calculated according to the ejection sillar side of slagging tap amount, make up current used method not
Foot, improve the quick-fried hole scale of rock burst estimation precision, for rock burst hazard severity accurate evaluation provide it is more reasonable reliably
Support.
Disclosed above is only a specific embodiment of the invention, and still, the embodiment of the present invention is not limited to this, is appointed
What what those skilled in the art can think variation should all fall into protection scope of the present invention.
Claims (6)
1. a kind of quick appraising model in scene of deep tunnel rock burst hazard scale characterized by comprising
One, the quick-fried hole model of socket type
(1), when rock burst point hole wall is linear type, the quick-fried pit-hole wall surrounding rock failure surface area S of socket type1And quick-fried pit body product V1's
Approximate estimation model difference is as follows:
S1=ab
Wherein, the quick-fried hole of socket type is denoted as a along tunnel axial length, and quick-fried hole height of the quick-fried hole of socket type on the wall of hole is denoted as b, the depth in quick-fried hole
Degree is denoted as h；Axial for X-axis with tunnel, excavating direction is that X-axis is positive；X-axis rotates clockwise 90 ° as Y-axis, and hole wall recess side is Y
Axis is positive；Vertical X axis and Y-axis, tunnel vault direction are that Z axis is positive to Z axis simultaneously, tunnel portal to quick-fried hole lower limit be that coordinate is former
Point O, to constitute constructing tunnel engineering coordinate system；
(2), when rock burst point hole wall is arc, the quick-fried pit-hole wall surrounding rock failure surface area S of socket type2And quick-fried pit body product V2Estimate
It is as follows to calculate model difference:
Wherein: r is the radius of arc, and Δ V is the volume of the part ikm:
Two, the quick-fried hole model of " V " font
(1), when rock burst point hole wall is linear type, the quick-fried pit-hole wall surrounding rock failure surface area S of socket type3And quick-fried pit body product V3's
Approximate estimation model difference is as follows:
Wherein, the quick-fried hole of " V " font is a along tunnel axial length1, quick-fried hole height maxima b on the quick-fried pit-hole wall of " V " font1, most
Small value b2；Quick-fried hole depth maximum value h1, minimum value h2；
(2), when rock burst point hole wall is arc, the quick-fried pit-hole wall surrounding rock failure surface area S of socket type4And quick-fried pit body product V4Estimate
It is as follows to calculate model difference:
2. a kind of quick appraising model in scene of deep tunnel rock burst hazard scale as described in claim 1, which is characterized in that
The establishment of coordinate system mode of the quick-fried hole model of " V " font is identical as the quick-fried hole establishment of coordinate system mode of model of the socket type.
3. buried based on a kind of one kind of the quick appraising model in the scene of deep tunnel rock burst hazard scale described in claim 1
The live Method of fast estimating of tunnel rock burst hazard scale characterized by comprising
It is quick-fried hole left margin, since No. I section, along X-axis Step 1: the cross section where origin O is labeled as No. I section
Positive successively to choose II, III, No. IV cross section Bao Keng, quick-fried hole right side boundary is as No. V cross section；
Step 2: arranging 5 control points on each cross section: being respectively the terminal A up and down and E in quick-fried hole cross section, cross section
The deepest point C in upper quick-fried hole, and two o'clock B, D between deepest point and endpoint；
Step 3: the coordinate at record control point, is fitted these coordinates, fitting result is analyzed, show that quick-fried pitted surface profile is bent
The characteristics of line, establishes quick-fried hole Quantity customizing model；
Step 4: calculating hole wall rock mass damage surface area S and quick-fried pit body product V according to quick-fried hole Quantity customizing model.
4. a kind of live Method of fast estimating of deep tunnel rock burst hazard scale as claimed in claim 3, which is characterized in that
When the quick-fried hole of rock burst is socket type, the quick-fried pitted surface contour curve is quadratic function form or cubic function.
5. a kind of live Method of fast estimating of deep tunnel rock burst hazard scale as claimed in claim 3, which is characterized in that
When the quick-fried hole of rock burst is " V " font, the quick-fried pitted surface contour curve is linear function form.
6. a kind of live Method of fast estimating of deep tunnel rock burst hazard scale as claimed in claim 3, which is characterized in that
The quick-fried hole Quantity customizing model includes the quick-fried hole model of socket type and the quick-fried hole model of " V " font.
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| CN112149594A (en) * | 2020-09-29 | 2020-12-29 | 同济大学 | Urban construction assessment method based on deep learning and high-resolution satellite images |
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| CN111368359A (en) * | 2020-02-25 | 2020-07-03 | 浙江大学城市学院 | Tunnel slab cracking buckling type rock burst determination method |
| CN111400838A (en) * | 2020-03-30 | 2020-07-10 | 浙江大学 | Manufacturing method for preventing plastic collapse failure of internal pressure steel oval end socket |
| CN111400838B (en) * | 2020-03-30 | 2023-10-31 | 浙江大学 | Manufacturing method for preventing plastic collapse failure of inner-pressure steel elliptical head |
| CN112149594A (en) * | 2020-09-29 | 2020-12-29 | 同济大学 | Urban construction assessment method based on deep learning and high-resolution satellite images |
| CN112149594B (en) * | 2020-09-29 | 2022-08-09 | 同济大学 | Urban construction assessment method based on deep learning and high-resolution satellite images |
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