CN106021937B - It is a kind of for construction of structures difference vibration velocity require under Tunnel Blasting medicine calculation method - Google Patents
It is a kind of for construction of structures difference vibration velocity require under Tunnel Blasting medicine calculation method Download PDFInfo
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- 238000005422 blasting Methods 0.000 title claims abstract description 20
- 238000004364 calculation method Methods 0.000 title claims abstract description 18
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- 238000004880 explosion Methods 0.000 abstract description 8
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- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
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Abstract
The invention discloses a kind of Tunnel Blasting medicine calculation methods required for construction of structures difference vibration velocity; especially suitable for when city carries out tunnel or Tunnel Blasting; different kinds of building object, structures have different vibration velocity requirements, while the safe dose for meeting a variety of protected object vibration velocitys calculates.The present invention initially sets up the space tracking equation of tunnel curve, protected object；Then it determines dose-pile No. functional relation under three kinds of line style structures (such as subway), landmark, surface structures vibration velocity controls: to the landmark being located on the outside of tunnel, tunnel being divided by several segments using extension contour of building line and derives corresponding dose pile No. Q-S piecewise function；Metro safety dose substitutes into formula according to the spatial vertical distance of the quick-fried source point in tunnel to subway straight line and obtains；Medicine calculation is carried out according to ground distance right above quick-fried source to tunnel under other building control vibration velocitys；Three kinds of dose values of tunnel each position are finally resolved respectively using MATLAB software, and take wherein minimum value conduct design dose.Present invention control explosion accurate for city tunnel realization is of great significance and application value.
Description
Technical field
The invention proposes a kind of different vibration velocitys for different constructions of structures to require lower Tunnel Blasting medicine calculation method,
Especially suitable for guaranteeing the determination of Tunnel Blasting dose under different vibration velocitys require in low vibration velocity complex environment.
Background technique
In recent years, vibration velocity problem attracts extensive attention in engineering explosion, and the requirement to Explosive Vibrating Velocity is also increasingly stringenter.City
Tunnel or Tunnel Blasting near area are increased, and major casualty source is blasting vibration, research shows that explosive quantity is vibration control
It is crucial.Therefore the important content of explosion design is the medicine calculation controlled under vibration velocity.Medicine calculation side under control vibration velocity at present
Method is calculated according to Sa Shi formula, and dose is segmented when vibration velocity is certain and is determined by quick-fried source to distance protected object, in general feelings
This distance is to be easy to calculate under condition: if protected object in tunnel contour line, the as quick-fried source in tunnel to surface identity distance
From；If building simplification is usually that any is easily calculated outside contour line by building.In addition, research tunnel is individual at present
The more of building is individually protected in section, if two kinds of vibration velocitys are to calculate safe dose according to minimum vibration velocity, is lacked under more vibration velocitys
Explosive load design.Since tunnel mostly building dense and buried depth in city is shallower, the above method in many cases and is not suitable for.Because quick-fried
Source is not much different to building distance with building size, cannot be reduced to the latter a little to calculate its distance away from tunnel, and city
City tunnel and building positional relationship are complicated, it is difficult to directly obtain quick-fried source and build most short space length and explosion dose；Secondly
Construction of structures is numerous and has the requirement of different vibration velocitys, and it is high and low compared with close, control vibration velocity from building from building often to will appear control vibration velocity
Build situations such as remote, it is therefore necessary to consider the dose selection under multiple vibration velocity index.
Summary of the invention
The method of the present invention is the requirement controlled for Tunnel Blasting vibration velocity, is building simplification when overcoming traditional explosion
A little and under the requirement of more vibration velocitys only consider the shortcomings that minimum vibration velocity requires, and in a kind of explosion proposed under a variety of vibration velocitys requirements
The determination method of safe dose.The method of the present invention is especially suitable for guaranteeing that low vibration velocity complex environment difference vibration velocity requires lower tunnel quick-fried
The determination of broken dose.
The principle of the method for the present invention is:
The safe distance formula for determining different buildings, structures first, establishes coordinate system, finds out the quick-fried innermost being line in tunnel
It is public to export safe distance of the line style structures away from tunnel respectively for equation, line style structures equation and landmark the foot of a wall line equation
The safe distance formula of formula and landmark away from tunnel；Then the range formula found out is brought into Sa Shi formula to be able to obtain
Landmark vibration velocity requires the safe dose under the requirement of lower and line style structures vibration velocity.Earth's surface is to quick-fried source most narrow spacing right above tunnel
With a distance from as the intensive building to tunnel safety in ground around, substitution Sa Shi formula can obtain the tunnel under surface structures vibration velocity requires
Road safety blasting quantity；The corresponding pile No. curve Q-S of the dose obtained under three kinds of vibration velocity is finally taken into intersection point, tunnel can be divided into
Different sections.Safe dose in different sections, when to take the minimum dose under three kinds of vibration velocitys be Tunnel Blasting.
A kind of Tunnel Blasting medicine calculation method required for construction of structures difference vibration velocity of the invention, this method include
Following steps:
1) foundation of coordinate system and equation are stated:
Tunnel geometric locus is using circular curve, easement curve and straightway combination, with tunnel piercing head burst point track company
Line makees tunnel curve, establishes coordinate system respectively by circular curve, two sections of easement curve, can obtain tunnel arc section after establishing coordinate system
Equation of locus, easement curve section equation of locus, the equation of line style structures and landmark the foot of a wall line equation；
2) landmark is derived away from tunnel shortest distance equation:
Extended line is made to landmark the foot of a wall line, building object plane is divided into two parts, a part is building side
Line is the elongated strap of width, and the shortest distance of this region inner tunnel to building is to be put on tunnel to the vertical of corresponding the foot of a wall line
Distance；Another part is the part at face building wall angle, and the shortest distance of this region inner tunnel to building is on tunnel
Horizontal distance of the point to corresponding corner；Building extends the foot of a wall line and meets at 4 with tunnel curve respectively outside quick-fried innermost being line circular arc
Tunnel curve is divided into 5 sections by control point, can be divided into point in the easement curve section in tunnel to building sideline or angle point away from
From point on tunnel arc section to building sideline or four kinds of situations of distance of angle point；Because of tunnel equation of locus and landmark
Object the foot of a wall line equation derives landmark away from tunnel it is known that range formula simultaneous with space midpoint to straight line or point-to-point
Shortest distance formula；
3) line style structures are derived away from tunnel shortest distance equation:
Tunnel includes circular curve and easement curve, and tunnel is corresponding to the line style structures shortest distance to be divided into two part meters
It calculates: being respectively that circular curve, the point on easement curve arrive the shortest distance of line style structures, be spatial point to the distance pass of straight line
System, because of line style structures and tunnel curvilinear equation it is known that simultaneous space midpoint exports line style structures to the range formula of straight line
Away from tunnel shortest distance formula；
4) the charge formula Q-S under three kinds of vibration velocitys is derived respectively:
By the landmark derived away from tunnel shortest distance formula and line style structures away from tunnel shortest distance formula point
The vibration of lower Tunnel Blasting safe dose formula and line style structures is not required with the vibration velocity of Sa Shi formula simultaneous export landmark
Tunnel Blasting safe dose formula under speed requirement；Earth's surface right above tunnel to quick-fried source minimum range is substituted into Sa Shi formula to obtain the final product
The vibration velocity of surface structures requires lower Tunnel Blasting safe dose formula, the i.e. corresponding theoretical dose Q of pile No. S；
5) comprehensively consider the safe dose that three kinds of vibration velocitys determine tunnel difference section:
Safe dose under the vibration velocity of surface structures requires can directly be calculated according to tunnel profile altitude data；Historical relic is built
It builds when the safe dose under requiring with the vibration velocity of line style structures calculates using MATLAB program, makes each construction of structures peace respectively
The S-Qi curve of each pile No. S theory of correspondences dose Qi in tunnel (i=1,2,3 ...) under full vibration velocity；It is calculated by MATLAB a plurality of
The intersection point of S-Qi curve.Pile No. is corresponded to intersection point, is tunnel segment；In each section of section, using the minimum value of Qi, as tunnel
Safe dose when explosion can then guarantee all kinds of buildings/structures object safety simultaneously.
Detailed description of the invention
Fig. 1 is foundation and the curve segmentation of coordinate system.
Fig. 2 is that the plane of the foot of a wall line extended line divides.
Fig. 3 is tunnel and building exemplary position relationship plan view.
Fig. 4 is subway and tunnel location and coordinate plane figure.
Fig. 5 is that tunnel perimeter architectural environment figure is connected in Chongqing.
Fig. 6 is connection tunnel trend and the building location drawing in Chongqing.
Fig. 7 is the S-Q curve calculated with the control of The Arhat Temple vibration velocity.
Fig. 8 is to control the S-Q curve that vibration velocity calculates with subway.
Fig. 9 is the S-Q curve calculated with building controls vibration velocity right above tunnel.
Figure 10 is to correspond to dose-tunnel location (S-Q curve) under three kinds of vibration velocitys to compare figure.
Specific embodiment
The present invention is a kind of Tunnel Blasting medicine calculation method under requirement for construction of structures difference vibration velocity, side of the present invention
The step of method, is:
1) foundation of coordinate system and equation are stated: using tunnel piercing burst point track as tunnel curve, by circular curve, being mitigated
Two sections of curve are established coordinate system respectively: for arc section, origin O selection with the same elevation of knick point, floor projection and circle
The arc center of circle is overlapped Z axis and is directed toward surface, and Y-axis is directed toward tunnel knick point, and X-axis is established according to cartesian coordinate system；It is bent for mitigating
Line segment, origin O ' are located at point of tangent to spiral, and Z axis is directed toward surface, and Y-axis is backwards to easement curve center of curvature side, perpendicular to straight line
Section, X-axis is by right-handed system perpendicular to Y-axis.Arc section equation are as follows:
In formula: r is arc section radius, S1For Y-axis and tunnel intersections of complex curve pile No., S is tunnel curve arbitrary point (x, y, z)
Pile No., i are road gradient in highway tunnel, and r is circular curve radius, and s is that any point (x, y, z) arrives point of tangent to spiral ZH arc length on easement curve；
Easement curve equation are as follows:
In formula: r is arc section radius, and i is road gradient in highway tunnel, S0For easement curve total length, zZHFor point of tangent to spiral Z coordinate；
If building the foot of a wall corner coordinate A (x0, y0, z0), finds the coordinate of the foot of a wall line corner point, that is, may know that the foot of a wall
Line equation are as follows:
In formula: k1- the foot of a wall line slope, z0- building relative elevation minimum point coordinate；
Assuming that the intersection point in subway and tunnel is T, coordinate (x of the T point respectively under two coordinate systems can be determinedT,yT,zT)、
(x’T, y 'T,z’T), (xL,yL,zL), (x 'L, y 'L,z’L), a point L is in addition looked on subway, can determine kTFor linear equation
Slope at OXYZ, k 'TFor slope of the linear equation at OX ' Y ' Z ', then the linear equation of subway can be found out.
The subway equation at O X Y Z:
Subway equation under O ' X ' Y ' Z ':
2) landmark is derived away from tunnel shortest distance equation: being made extended line to landmark the foot of a wall line, can will be built
It builds object plane and is divided into two parts (Fig. 2), a part is the elongated strap that building sideline is width, this region inner tunnel is to building
The shortest distance for building object is the vertical range put on tunnel to corresponding the foot of a wall line；Another part is the portion at face building wall angle
Point, the shortest distance of this region inner tunnel to building is the horizontal distance that point arrives corresponding corner on tunnel；
Building is outside quick-fried innermost being line circular arc, and 4 extended lines meet at 4 control point DEFG with tunnel curve respectively, tunnel
Road curve is divided into 5 sections (Fig. 1)；Point of tangent to spiral is O ' (or ZH), and point of spiral to curve HY is between EF.For the portion between tunnel DG sections
Point, the shortest distance for calculating each point to building on tunnel is just divided into G-F sections, F-HY sections, HY-E sections, E-D sections, is respectively as follows: and asks
Distance between beeline and dot on easement curve, the distance of point-to-point on easement curve, the distance of point-to-point, circular curve on circular curve
Upper point point arrives four kinds of distance of straight line.These four situations are most commonly seen situations, are had general representative.Range formula derives
It is as follows:
In formula: kAMFor slope of the sideline AM at coordinate system XOY of building；k'ANFor building sideline AN in coordinate
It is the slope under X ' Y ' Z ', (xA,yA,zA)、(xM,yM,zM) it is coordinate of point A, the M under coordinate system；(x'N,y’N,z’N)、
(x’A,y’A,z’A) it is respectively coordinate of point N, the A under coordinate system, ST,SD,SE,SHY,SF,SG,SZHFor T, D, E, HY, F, G, ZH
The pile No. of point；
3) line style structures away from tunnel shortest distance equation derive: tunnel include circular curve and easement curve, tunnel with
The line style structures shortest distance is accordingly divided into two parts and calculates: being respectively that circular curve, the point on easement curve are constructed to line style
The shortest distance of object is distance relation of the spatial point to straight line.Circular segment range formula derives as follows:
Easement curve section range formula derives as follows:
4): the charge formula Q-S under three kinds of vibration velocitys is derived respectively:
1. the Formulas For Calculation of Charge Weight under requiring according to landmark vibration velocity derives: the shortest distance of the landmark apart from tunnel
Equation can obtain corresponding Formulas For Calculation of Charge Weight it is known that carrying it into Sa Shi formula:
2. the Formulas For Calculation of Charge Weight under requiring according to line style structures vibration velocity derives: line style structures are apart from the most short of tunnel
Range equation can obtain corresponding Formulas For Calculation of Charge Weight it is known that carrying it into Sa Shi formula:
In formula: kAMFor slope of the sideline AM at coordinate system XOY of building；k'ANFor building sideline AN in coordinate
It is the slope under X ' Y ' Z ', (xA,yA,zA)、(xM,yM,zM) it is coordinate of point A, the M under coordinate system；(x'N,y’N,z’N)、
(x’A,y’A,z’A) it is respectively coordinate of point N, the A under coordinate system, ST,SD,SE,SHY,SF,SG,SZHFor T, D, E, HY, F, G, ZH
The pile No. of point；
3. the Formulas For Calculation of Charge Weight under requiring according to above ground structure vibration velocity derives: right above tunnel and surrounding building is non-
It is often intensive, it is built because quick-fried source must be less than other positions away from just upper main earth's surface elevation, considers the safety of the building right above tunnel
Dose can guarantee other building safeties.It is set as R, according to Sa Shi formula, dose Q are as follows:
In formula: K- Ground coefficientk, α-attenuation coefficient, Q- single hop battering charge, R- measuring point and explosion position distance；
5) comprehensively consider the safe dose that three kinds of vibration velocitys determine tunnel difference section: under the vibration velocity of above ground structure requires
Safe dose can directly be calculated according to tunnel profile altitude data；Peace under the requirement of the vibration velocity of landmark and line style structures
Because functional relation is complex when full medicine calculation, calculating solution is carried out using MATLAB program thus, using MATLAB program,
The S-Qi for making each pile No. S theory of correspondences dose Qi in tunnel (i=1,2,3 ...) under each construction of structures Safety Vibration Velocity respectively is bent
Line；The intersection point of a plurality of S-Qi curve is calculated by MATLAB.Pile No. is corresponded to intersection point, is tunnel segment；In each section of section, adopt
With the minimum value of Qi, then it can guarantee all kinds of buildings/structures object safety simultaneously.
Now it is described according to specific embodiment.
The engineering that the present invention is relied on is that tunnel is connected in the Chongqing of Chongqing City Yu Zhong district, and tunnel curve is bent by circular curve+mitigation
Line+rectilinear(-al), road gradient in highway tunnel i=4%, circular curve radius r=260.25m, easement curve parameter s0=200m.Constructing tunnel
Upright stone tablet, ground underground building object dense distribution are liberated positioned at Yu Zhong district main commercial center.There is major cultural relic outside tunnel contour line
The The Arhat Temple main palace in a temple controls vibration velocity in 0.5cm/s hereinafter, remaining owned building requires vibration velocity to be no more than 1.0cm/s, line style
Structures Subway Line 1 controls vibration velocity and is no more than 1.5cm/s.The present invention is exactly a kind of general side proposed for this problem
Method.Specific embodiment the following steps are included:
1) foundation of coordinate system and equation are stated.According to the quick-fried heart curve tracing 6 of left tunnel line, Y-axis and intersections of complex curve (become slope
Point) position pile No. ZK14+077.06 (pile No. S only takes "+" aft section), it is set as elevation starting point, i.e. Y-axis and tunnel curve is handed over
Point pile No. is S1=77.06.From pile No. ZK14+077.06~400, circular curve, easement curve two parts.At pile No. ZK14+200
It is point of tangent to spiral (ZH), i.e. SHY=200, SZH=400 at pile No. ZK14+400 for point of spiral to curve (HY).It is built by origin of point of tangent to spiral
It is O ' X ' Y ' Z ', and guarantees that coordinate system O ' X ' Y ' Z ' is overlapped with the respective X/Y plane of OXYZ.It is derived respectively after establishing coordinate system
The linear equation and text of transition zone and arc section curvilinear equation, Subway Line 1 of the quick-fried innermost being line in tunnel under two coordinate systems
The foot of a wall line equation of the object building The Arhat Temple main palace in a temple.
2) landmark is derived away from the tunnel shortest distance.It take AM, AN (Fig. 2) as two elongated strap interior zones of width,
Tunnel floor projection falls point in the area, determines that it is to the method for minimum value of building horizontal distance: crossing the point and make
The vertical line of corresponding the foot of a wall line (AM or AN), the horizontal distance of the point to intersection point are minimum value.Face corner A's (or M, N, I)
Part, tunnel floor projection fall point in the area, determine that it is to the method for minimum value of building horizontal distance: connection
The point and corner, the horizontal distance of the two are minimum value.According to the above segmentation method, when building is outside quick-fried innermost being line circular arc, 4
Extended line and tunnel meet at 4 control point DEFG and tunnel are divided into 5 sections.T-D sections are arrived M point distance, ginseng for point on circular curve
It is calculated according to landmark and the first formula in tunnel distance formula S-R formula；D-E sections for point on circular curve to the foot of a wall line AM away from
From being calculated referring to the second formula in S-R formula；The E-HY sections of distances for point on circular curve to A point, referring to third formula in S-R formula
It is calculated；The HY-F sections of distances for point to A point on easement curve are calculated referring to the 4th formula in S-R formula；F-G sections are mitigation
Point arrives the distance of the foot of a wall line AN on curve, is calculated referring to the 5th formula in S-R formula；G-O ' section is that point arrives N point on easement curve
Distance calculated referring to the 6th formula in S-R formula.
3) line style structures are derived away from the tunnel shortest distance.Tunnel includes circular curve and easement curve, tunnel and subway one
The shortest distance of number line is accordingly divided into two parts and calculates (Fig. 4): being respectively circular curve, the point on easement curve to subway No.1
The shortest distance of line is distance relation of the spatial point to straight line.
4) Formulas For Calculation of Charge Weight under three kinds of vibration velocitys is derived respectively.Range formula of the The Arhat Temple main palace in a temple far from tunnel is
Know, The Arhat Temple Safety Vibration Velocity is 0.5cm/s, under the vibration velocity that The Arhat Temple just can be obtained in range formula substitution Sa Shi formula is required
Charge formula；Similarly, Subway Line 1 Safety Vibration Velocity is 1.5cm/s, and the range formula by Subway Line 1 far from tunnel substitutes into Sa
The charge formula under the vibration velocity requirement of Subway Line 1 just can be obtained in family name's formula；Right above tunnel and surrounding building is very close
Collection, taking building safety vibration velocity is 1.0cm/s, builds because quick-fried source must be less than other positions far from surface earth's surface elevation, considers tunnel
The safe dose of building right above road can guarantee other building safeties, and bringing elevation into Sa Shi formula just can be obtained ground
Charge formula under the vibration velocity requirement of building.
5) comprehensively consider the safe dose that three kinds of vibration velocitys determine tunnel difference section.The vibration velocity of The Arhat Temple and Subway Line 1
Because functional relation is complex when safe dose under it is required that calculates, calculating solution is carried out using MATLAB program thus, is utilized
MATLAB program, make respectively each pile No. S theory of correspondences dose Qi in tunnel under each construction of structures Safety Vibration Velocity (i=1,2,
3 ...) S-Qi curve (Fig. 7, Fig. 8)；The quick-fried heart that pile No. ZK14+40 to pile No. ZK14+400 is measured every 5 meters is to earth's surface
Distance as the quick-fried heart to the distance of surface building, range data bring into Sadaovsk formula calculate tunnel just on
The safe dose of square building obtains the homologous thread (Fig. 9) of pile No. S Yu dose Q.
The intersection point of a plurality of S-Qi curve is calculated by MATLAB program.Pile No. is corresponded to intersection point, is tunnel segment (Figure 10):
ZK14+40-ZK14+70 sections of pile No., metro safety dose is less than building and The Arhat Temple safe dose right above tunnel, by subway
The explosive load design of vibration velocity is controlled, maximum dose is no more than 2.1kg therefore this section is designed by metro safety dose；Pile No.
ZK14+70-ZK14+151.1, tunnel surface building safety dose is less than subway and The Arhat Temple safe dose, this section are pressed
According to the minimum dose 1.6kg design of surface building；Pile No. ZK14+151.1-ZK14+220, the safe dose number of The Arhat Temple
Value is less than the safe dose of building right above subway and tunnel, this section is designed by The Arhat Temple minimum safe dose 0.6kg；Pile No.
ZK14+220.-ZK14+400 is calculated by surface structures control vibration velocity, and dose maximum 1.4kg is not until using bursting work (tunnel
Into earth's surface).In each section of section, using the minimum value of Qi, then it can guarantee all kinds of buildings/structures object peace simultaneously
Entirely.
The above are a kind of specific implementation case of the method for the present invention, the present invention is not limited merely to specific example, as long as
Medicine calculation is carried out using same procedure, is regarded as the same type of the method for the present invention.
The above is only the preferred embodiment for the present invention, it is noted that the member of ordinary skill of the art is come
It says, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications are also answered
This is considered as protection scope of the present invention.
Claims (1)
1. a kind of Tunnel Blasting medicine calculation method required for construction of structures difference vibration velocity, which is characterized in that this method packet
Include following steps:
1) foundation of coordinate system and equation are stated:
Tunnel geometric locus is using circular curve, easement curve and straightway combination, with tunnel piercing head burst point track line work
Tunnel curve establishes coordinate system by circular curve, two sections of easement curve respectively, can obtain tunnel circular segment after establishing coordinate system
Equation of locus, easement curve section equation of locus, the equation of line style structures and landmark the foot of a wall line equation；
2) landmark is derived away from tunnel shortest distance equation:
Extended line is made to landmark the foot of a wall line, building object plane is divided into two parts, a part is that building sideline is
The elongated strap of width, the shortest distance of this region inner tunnel to building be on tunnel point to corresponding the foot of a wall line it is vertical away from
From；Another part is the part at face building wall angle, and the shortest distance of this region inner tunnel to building is point on tunnel
To the horizontal distance in corresponding corner；Building extends the foot of a wall line and meets at 4 controls with tunnel curve respectively outside quick-fried innermost being line circular arc
It is processed, tunnel curve is divided into 5 sections, be divided into point in the easement curve section in tunnel to building sideline or corner point away from
From point on tunnel arc section to building sideline or four kinds of situations of distance of corner point；Because tunnel equation of locus and historical relic are built
Object the foot of a wall line equation is built it is known that range formula simultaneous with space midpoint to straight line or point-to-point, derives landmark away from tunnel
Road shortest distance formula；
3) line style structures are derived away from tunnel shortest distance equation:
Tunnel includes circular curve and easement curve, and tunnel is corresponding to the line style structures shortest distance to be divided into two part calculating:
The respectively shortest distance of circular curve, the point on easement curve to line style structures is that the distance of spatial point to straight line is closed
System, because of line style structures and tunnel curvilinear equation it is known that simultaneous space midpoint exports line style structures to the range formula of straight line
Away from tunnel shortest distance formula；
4) the charge formula Q-S under three kinds of vibration velocitys is derived respectively:
By the landmark derived away from tunnel shortest distance formula and line style structures away from tunnel shortest distance formula respectively with
The vibration velocity of Sa Shi formula simultaneous export landmark requires the vibration velocity of lower Tunnel Blasting safe dose formula and line style structures to want
Tunnel Blasting safe dose formula under asking；Earth's surface right above tunnel to quick-fried source minimum range is substituted into Sa Shi formula up to ground
The vibration velocity of building requires lower Tunnel Blasting safe dose formula, the i.e. corresponding theoretical dose Q of pile No. S；
5) comprehensively consider the safe dose that three kinds of vibration velocitys determine tunnel difference section:
Safe dose under the vibration velocity of surface structures requires can directly be calculated according to tunnel profile altitude data；Landmark and
Safe dose under the vibration velocity requirement of line style structures utilizes MATLAB program when calculating, and makes each construction of structures respectively and shakes safely
Speed descends the S-Qi curve of each pile No. S theory of correspondences dose Qi in tunnel, wherein i=1,2,3 ...；A plurality of S- is calculated by MATLAB
The intersection point of Qi curve corresponds to pile No. with intersection point, is tunnel segment；In each section of section, using the minimum value of Qi, as tunnel is quick-fried
Safe dose when broken, then can guarantee the safety of all kinds of building/structures simultaneously.
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| CN114936342B (en) * | 2022-04-18 | 2023-07-28 | 青岛理工大学 | Method, device, equipment and medium for calculating close-range blasting explosive quantity of protective object |
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