CN109235416A - A kind of 12000 kilonewton meter energy level dynamic compaction methods - Google Patents
A kind of 12000 kilonewton meter energy level dynamic compaction methods Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
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Abstract
The invention belongs to consolidation technical fields, disclose a kind of 12000 kilonewton meter energy level dynamic compaction methods, and first pass is rammed, and main rammer energy level is 12000 kilonewton meters, is rammed using, and tamping point form presses 10m × 10m arranged in squares, tamping point spacing 10m；It rams for second time, main rammer energy level is 12000 kilonewton meters, is rammed using, and tamping point is located at first pass 10m × 10m square center；For third all over ramming, auxiliary rammer energy level is 6000 kilonewton meters, is rammed using, tamping point spacing 5m × 5m square；It rams for 4th time, tamping energy is that 3000 kilonewton meters are completely rammed after backfilling first, second and third time tamping pit using full rammer, and hammering overlap joint 1/4, every 2 is hit.The present invention can eliminate collapsibility within the scope of 1-4m, and average dry density value is 1.47g/m3, collapsibility within the scope of 1-4m can be eliminated.
Description
Technical field
The invention belongs to consolidation technical fields, more particularly to a kind of 12000 kilonewton meter energy level dynamic compaction methods.
Background technique
Currently, the prior art commonly used in the trade is such that
Handling subgrade by intensity tamping is to be used by French Menard technology company wound first the 1960s, and this method is
Very heavy hammer (generally 100~400kN) is freely fallen and (is fallen away from generally 6~40m) to ground from eminence with impact force and
Vibration, to improve the intensity of foundation soil and reduce its compressibility.This method, which is used initially only in, reinforces sand and foundation of gravelly soil.Through
The application and development of more than ten years are crossed, it has been suitable for reinforcing all kinds of foundation soils from gravel to cohesive soil, and this is mainly due to apply
The improvement of work method and the improvement of drainage condition, heavy-tamping method is due to significant effect, simple, easy for construction, the applicable model of equipment
The advantages that enclosing wide, economy and facility and saving material, travels to all over the world quickly.
Loess is distributed quite extensive as the secondary substance for forming ground mulching layer.In China, loess area coverage is more
Up to 600,000 km2,6% of national territorial area or more is accounted for, wherein northwest loess plateau is the area that China's collapsible loess is most concentrated.Cause
This, processing and technology to collapsible loess, discussion economically are one and both real and in the urgent need to address ask
Topic, treating collapsible loess foundation by dynamic compaction technology are largely used in construction and obtain huge achievement.
In conclusion problem of the existing technology is:
In the prior art, collapsibility within the scope of 1-4m can not be eliminated.
The energy prior art is rammed for 12000 kilonewton meters and lacks reasonable embodiment, for moisture content and coefficient of collapsibility
It is theoretically unsound.
The prior art is rammed energy energy level for different phase and not can be effectively controlled.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of 12000 kilonewton meter energy level dynamic compaction methods.
The invention is realized in this way a kind of 12000 kilonewton meter energy level dynamic compaction methods, comprising the following steps:
Step 1: progress first pass first is rammed, and main rammer energy level is 12000 kilonewton meters, is rammed using, and tamping point form is pressed
10m × 10m arranged in squares, tamping point spacing 10m, the number of ramming for putting rammer no less than 10 are hit；
Step 2: secondly carrying out ramming for second time, and main rammers energy level is 12000 kilonewton meters, rams using, and tamping point is positioned at the
Time 10m × 10m square center, the number of ramming for putting rammer no less than 10 are hit；
Step 3: and then third is carried out all over ramming, auxiliary rammer energy level is 6000 kilonewton meters, is rammed using, tamping point spacing 5m
× 5m square, every 10 is hit；
Step 4: finally carrying out ramming for the 4th time, and tamping energy is 3000 kilonewton meters, using full rammer, backfill first and second,
It is completely rammed after three times tamping pits, hammering overlap joint 1/4, every 2 is hit.
Further, the first pass, second time last two average ramming volume≤200mm hit rammed with third time.
It is described ram during around tamping pit ground excessive protuberance should not occur.
It is described not propose hammer difficulty because tamping pit is too deep during ramming, in case of this situation can be filled out when ramming.
The examination is continuously rammed during ramming, and the rainy day forbids examination to ram.
The 12000 of the 12000 kilonewton meter energy level dynamic compaction method is realized another object of the present invention is to provide a kind of
Kilonewton meter energy level strong rammer equipment.
Another object of the present invention is to provide a kind of ramming using the 12000 kilonewton meter energy level dynamic compaction method
Ground.
Another object of the present invention is to provide one kind to strong rammer energy level in the 12000 kilonewton meter energy level dynamic compaction method
Control method, the control method of the strong rammer energy level includes:
The strong rammer pressure sensing being respectively arranged using first pass tamping point, second time tamping point, third all over tamping point region
Data are rammed in device detection, and the data that will test are transferred to computer；
Using computer to ramming ramming 12000 kilonewton meter energy levels, ramming 6000 kilonewton meter energy levels, ram for equipment
3000 kilonewton meter energy levels are controlled.
Further, strong rammer pressure sensor detection is rammed in data, is rammed energy level signal to the difference got and is carried out in advance
Processing, to reduce artifacts；
Filter is created, by pretreated signal filtering to required frequency range；
Using Phase synchronization analysis method, phase of the signal of each frequency range between various time points every two channel is calculated
Relationship obtains dynamic function connection matrix；It obtains corresponding correctly ramming population of levels evidence；
Preprocess method includes: to carry out 0.5-35Hz bandpass filtering to the signal data of acquisition, then remove interference signal, pick
Except artifact data to obtain required ramming energy level signal；
The creation method of filter are as follows: signal is five frequency ranges, i.e. δ (0.5-10Hz), θ (16- using WAVELET PACKET DECOMPOSITION
25Hz), α (25-35Hz)；
Calculated using PGC demodulation value PLV each frequency range ram energy level signal in various time points every two channel it
Between phase relation, specific calculation formula is as follows:
PLV=| < exp (j { Φi(t)-Φj(t)})>|；
Wherein, Φi(t) and Φj(t) be respectively electrode i and j instantaneous phase；
The phase value of signal can be calculated using Hilbert transform, specific formula is as follows:
xi(τ) is the continuous time signal of electrode i, and τ is a time variable, and t indicates time point, and PV is Cauchy's principal value；
Instantaneous phase is calculated as follows:
Likewise it is possible to calculate instantaneous phase Φj(t)；
If selected energy level port number of ramming is M, ramming energy level time point number is T, is constructed using channel two-by-two different
Channel pair calculates the PLV value in all channels pair, M × M × T three-dimensional matrice K is obtained at this time, when wherein M × M is one
Between the upper triangular matrix put:
Each element K of KijtFor the PLV value on t time point between i-th of electrode and j-th of electrode, which is
State function connects matrix rams the phase relation of energy level channel between any two, the also sky comprising ramming energy level channel comprising difference
Between information and temporal information；
Computer is to ramming ramming 12000 kilonewton meter energy levels, ramming 6000 kilonewton meter energy levels, ram 3000 for equipment
Kilonewton meter energy level specifically includes in being controlled:
According to ram 12000 kilonewton meter energy levels, ram 6000 kilonewton meter energy levels, ram 3000 kilonewton meter energy levels fortune
Moving constraint relationship constructs three-dimensional space interference matrix, obtains feasible control sequence sequence；
Real time data is rammed as the index of control sequence sequence evaluation using what difference rammed energy level, is constructed and is adapted to universal draw
The fitness function of power searching algorithm；
The calculation formula of gravitation searching algorithm is redefined and is transformed, new gravitation search is constructed
Calculation formula；
Control sequence sequence is treated using new gravitation search calculation formula and is iterated solution, acquired calculating
It as a result is optimum control generic sequence；
Three-dimensional space interference matrix is as follows:
Wherein, Ma is three-dimensional space control sequence interference matrix, and a is to ram energy level direction, and a ∈ { ± x, ± y, ± z }；
C1C2...CnIndicate each population of levels evidence to be rammed；N is to ramming times；Cij=1 indicates to ram energy level C in differenceiAlong side
When mobile toward next tamping energy grade to a, will with ram energy level CjIt overlaps；It rams energy level not overlap with itself, Cii=
0；
Fitness function are as follows:
Wherein, Fit (t) is fitness function, f (Xi) indicate that ramming population of levels rams real time data according to i；Qi(k,k+1)Table
Show that completing k-th rams population of levels according to the process the time it takes for ramming population of levels evidence to kth+1, the Qi(k,k+1)=d
Di(k,k+1)+k·Ti(k,k+1)+l·Li(k,k+1)；Di(k,k+1)For the change number for ramming direction, Ti(k,k+1)To ram equipment more
Change number, Li(k,k+1)For the change number for ramming type, k ∈ [1, N-1]；D be ram direction when redirecting in ramming
Weight coefficient, k is the weight coefficient for ramming equipment replacement in ramming, and l is the power for ramming the change of type in always ramming
Weight coefficient, and meet d+k+l=1；
New gravitation search calculation formula is as follows:
Wherein, energy level i to be rammed is indicated with particle i, then Fi dIt (t) is the gravitation resultant force of particle i, Rand is represented
Be random number, which is [0,1],Its
Middle xi d(t) for particle i in t moment in the position of d dimension space, FijIndicate that gravitation of the particle i by particle j, G (t) are
Universal gravitational constant,α is attenuation coefficient, G0For initial gravitational constant, T is the time cycle, and ε is one small
Numerical constant, MpiIndicate passive gravitational mass, MajIndicate active gravitational mass, Rij(t) between t moment particle i and particle j
Euclidean distance,Wherein xi, xjFor particle i, the position of j in space.
Another object of the present invention is to provide a kind of computer programs of control method for realizing the strong rammer energy level.
Another object of the present invention is to provide a kind of processing of the information data of control method for realizing the strong rammer energy level
Terminal.
Another object of the present invention is to provide a kind of computer readable storage mediums, including instruction, when it is in computer
When upper operation, so that computer executes the control method of the strong rammer energy level.
In conclusion advantages of the present invention and good effect are as follows:
12000 kilonewton meter strong rammer provided by the invention rams away from 10 × 10m, can eliminate collapsibility within the scope of 1-4m, puts down
Equal dry density value is 1.47g/m3, collapsibility within the scope of 1-4m can be eliminated.
12000 kilonewton meters of the invention ram energy, and rammer is 1.7g/cm in 1m, 2m wet density away from 10 × 10m3、1.63g/cm3、
Wet density is 1.5g/cm within the scope of 3-6m3。
Dry density is in 1m, 2m 1.55g/cm3、1.54g/cm3, 3-7m is 1.4g/cm3.It surveys in report with ground and naturally does
Density 1.33g/cm3It compares, variation is smaller, as shown in Figure 2 and Figure 3.
By analyzing moisture content and collapsibility coefficient curves figure, that is, Fig. 4, Fig. 5, it is 10% that 1m, which locates moisture content, 12,000,000 Ns
The rice that pauses, which rams, can eliminate collapsibility obviously, and 1m coefficient of collapsibility is 0.003.
12000 kilonewton meter strong rammers destroy soil structures within the scope of 1-4m, and collapsibility is eliminated.
12000 kilonewton meter strong rammers of the invention ram away from 10 × 10m, can eliminate collapsibility within the scope of 1-4m, average dry
Density value is 1.47g/m3.Illustrate that 12000 kilonewton meter strong rammers can change soil structures within 8m, saturated yielding within the scope of 1-4m
Performance is enough eliminated.
Strong rammer pressure sensor detection of the present invention is rammed in data, is rammed energy level signal to the difference got and is located in advance
Reason, to reduce artifacts；
Filter is created, by pretreated signal filtering to required frequency range；
Using Phase synchronization analysis method, phase of the signal of each frequency range between various time points every two channel is calculated
Relationship obtains dynamic function connection matrix；It obtains corresponding correctly ramming population of levels evidence；It can guarantee different energy level strong rammer data
Standard obtains, and provides foundation for postorder control.
The present invention is according to ramming 12000 kilonewton meter energy levels, ram 6000 kilonewton meter energy levels, ram 3000 kilonewton meters
Energy level kinematic constraint relationship constructs three-dimensional space interference matrix, obtains feasible control sequence sequence；
Real time data is rammed as the index of control sequence sequence evaluation using what difference rammed energy level, is constructed and is adapted to universal draw
The fitness function of power searching algorithm；
The calculation formula of gravitation searching algorithm is redefined and is transformed, new gravitation search is constructed
Calculation formula；
Control sequence sequence is treated using new gravitation search calculation formula and is iterated solution, acquired calculating
It as a result is optimum control generic sequence；It can guarantee accurate energy level strong rammer control, provide necessary condition for the reasonability of ground.
Detailed description of the invention
Fig. 1 is 12000 kilonewton meter energy level dynamic compaction method flow chart provided in an embodiment of the present invention；
Fig. 2 is 12000 kilonewton meter wet density change curve provided in an embodiment of the present invention；
Fig. 3 is 7000 kilonewton meter dry density change curve provided in an embodiment of the present invention；
Fig. 4 is 12000 kilonewton meter water-cut variation curve graph provided in an embodiment of the present invention；
Fig. 5 is 12000 kilonewton meter coefficient of collapsibility change curve provided in an embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Application principle of the invention is described in detail with reference to the accompanying drawing.
12000 kilonewton meter energy level dynamic compaction method provided in an embodiment of the present invention as shown in Figure 1 the following steps are included:
S101: progress first pass first is rammed, and main rammer energy level is 12000 kilonewton meters, is rammed using, and tamping point form is pressed
10m × 10m arranged in squares, tamping point spacing 10m, the number of ramming for putting rammer no less than 10 are hit；
S102: secondly ram for second time, and main rammer energy level is 12000 kilonewton meters, is rammed using, and tamping point is located at first
All over 10m × 10m square center, the number of ramming for putting rammer no less than 10 is hit；
S103: and then third is carried out all over ramming, auxiliary rammer energy level is 6000 kilonewton meters, it is rammed using, tamping point spacing 5m ×
5m square, every 10 is hit；
S104: finally ram for the 4th time, and tamping energy is 3000 kilonewton meters, using full rammer, backfill first, second and third
It is completely rammed after tamping pit, hammering overlap joint 1/4, every 2 is hit.
First pass provided in an embodiment of the present invention, the average ramming volume hit with third all over last two rammed for second time≤
200mm。
It is provided in an embodiment of the present invention ram during around tamping pit ground excessive protuberance should not occur.
It is provided in an embodiment of the present invention not propose hammer difficulty because tamping pit is too deep during ramming, in case of this situation can
It is filled out when ramming.
Examination provided in an embodiment of the present invention is continuously rammed during ramming, and the rainy day forbids examination to ram.
Construction technical data is rammed in examination.
Construction technical data is rammed in examination
。
It is that specific embodiment makees the present invention below with reference to the zone of transition between Loess Plateau of North Shaanxi and Mu us dese
It further illustrates.
1, geologic aspects
Major landform includes that Loess Accumulation corrodes slope, wind flood plain, alluvial-proluvial fan:
1) loess slope is corroded in accumulation: being located at Project Areas loess plateau of southern north slope, northwards with 5~10 ° of gentle slopes gradually mistake
It crosses to flood plain, 1550~1430 meters of elevation, is mainly made of upper Pleistocene series aeolian deposit loess, Loessial loam.
2) wind flood plain: being located to the north of loess slope, and the wide geographic area between low and slow beam hilllock connects for beach beam trough valley or depression
It is accumulated, landform is flat open, 1326~1408m of absolute elevation, predominantly updates system wind diluvial loam composition.
3) alluvial-proluvial fan: being distributed mainly on loess slope frontal zone, ground even, and absolute elevation 1396.0~
1400.0m is rushed proluvial sandy loam by updating system and is formed with 1~2 ° of gentle slope northwards low dip.
2, levee foundation ground
Levee foundation ground soil layer is loess and sandy loam, is loess, average dry density ρ d=1.33g/ in the left dam abutment of storage pond
cm3, compressed coefficient a1~2=0.85Mpa-1, belong to high compression soil, saturation cuts C=8kpa, Ф=17, vertical permeability coefficient KV fastly
=4.58 × 10-5Cm/s is weak water penetration, characteristic load bearing capacity fak=120kpa；Levee foundation is sandy loam, average dry density ρ d
=1.36g/cm3, compressed coefficient a1~2=0.67Mpa-1, belong to high compression soil, saturation cuts C=16.0kpa, Ф=14.0 fastly·, hold
Carry power characteristic value fak=140kpa.
3, dynamic compaction test interpretation of result
12000 kilonewton meters ram energy, and rammer is 1.7g/cm in 1m, 2m wet density away from 10 × 10m3、1.63g/cm3, 3-6m model
Enclosing interior wet density is 1.5g/cm3Left and right.
Dry density is in 1m, 2m 1.55g/cm3、1.54g/cm3, 3-7m is 1.4g/cm3.It surveys in report with ground and naturally does
Density 1.33g/cm3It compares, variation is smaller, as shown in Figure 2 and Figure 3.
By analyzing moisture content and collapsibility coefficient curves figure, that is, Fig. 4, Fig. 5, it is 10% that 1m, which locates moisture content, 12,000,000 Ns
The rice that pauses, which rams, can eliminate collapsibility obviously, and 1m coefficient of collapsibility is 0.003.
12000 kilonewton meter strong rammers destroy soil structures within the scope of 1-4m, and collapsibility is eliminated.
4, experiment conclusion
12000 kilonewton meter strong rammers ram away from 10 × 10m, can eliminate collapsibility within the scope of 1-4m, average dry density value is
1.47g/m3.Illustrate that 12000 kilonewton meter strong rammers can change soil structures within 8m, collapsibility can disappear within the scope of 1-4m
It removes.
Below with reference to concrete analysis, the invention will be further described.
Controlling party provided in an embodiment of the present invention to strong rammer energy level in the 12000 kilonewton meter energy level dynamic compaction method
Method, comprising:
The strong rammer pressure sensing being respectively arranged using first pass tamping point, second time tamping point, third all over tamping point region
Data are rammed in device detection, and the data that will test are transferred to computer；
Using computer to ramming ramming 12000 kilonewton meter energy levels, ramming 6000 kilonewton meter energy levels, ram for equipment
3000 kilonewton meter energy levels are controlled.
The detection of strong rammer pressure sensor is rammed in data, is rammed energy level signal to the difference got and is pre-processed, with
Reduce artifacts；
Filter is created, by pretreated signal filtering to required frequency range；
Using Phase synchronization analysis method, phase of the signal of each frequency range between various time points every two channel is calculated
Relationship obtains dynamic function connection matrix；It obtains corresponding correctly ramming population of levels evidence；
Preprocess method includes: to carry out 0.5-35Hz bandpass filtering to the signal data of acquisition, then remove interference signal, pick
Except artifact data to obtain required ramming energy level signal；
The creation method of filter are as follows: signal is five frequency ranges, i.e. δ (0.5-10Hz), θ (16- using WAVELET PACKET DECOMPOSITION
25Hz), α (25-35Hz)；
Calculated using PGC demodulation value PLV each frequency range ram energy level signal in various time points every two channel it
Between phase relation, specific calculation formula is as follows:
PLV=| < exp (j { Φi(t)-Φj(t)})>|；
Wherein, Φi(t) and Φj(t) be respectively electrode i and j instantaneous phase；
The phase value of signal can be calculated using Hilbert transform, specific formula is as follows:
xi(τ) is the continuous time signal of electrode i, and τ is a time variable, and t indicates time point, and PV is Cauchy's principal value；
Instantaneous phase is calculated as follows:
Likewise it is possible to calculate instantaneous phase Φj(t)；
If selected energy level port number of ramming is M, ramming energy level time point number is T, is constructed using channel two-by-two different
Channel pair calculates the PLV value in all channels pair, M × M × T three-dimensional matrice K is obtained at this time, when wherein M × M is one
Between the upper triangular matrix put:
Each element K of KijtFor the PLV value on t time point between i-th of electrode and j-th of electrode, which is
State function connects matrix rams the phase relation of energy level channel between any two, the also sky comprising ramming energy level channel comprising difference
Between information and temporal information；
Computer is to ramming ramming 12000 kilonewton meter energy levels, ramming 6000 kilonewton meter energy levels, ram 3000 for equipment
Kilonewton meter energy level specifically includes in being controlled:
According to ram 12000 kilonewton meter energy levels, ram 6000 kilonewton meter energy levels, ram 3000 kilonewton meter energy levels fortune
Moving constraint relationship constructs three-dimensional space interference matrix, obtains feasible control sequence sequence；
Real time data is rammed as the index of control sequence sequence evaluation using what difference rammed energy level, is constructed and is adapted to universal draw
The fitness function of power searching algorithm；
The calculation formula of gravitation searching algorithm is redefined and is transformed, new gravitation search is constructed
Calculation formula；
Control sequence sequence is treated using new gravitation search calculation formula and is iterated solution, acquired calculating
It as a result is optimum control generic sequence；
Three-dimensional space interference matrix is as follows:
Wherein, Ma is three-dimensional space control sequence interference matrix, and a is to ram energy level direction, and a ∈ { ± x, ± y, ± z }；
C1C2...CnIndicate each population of levels evidence to be rammed；N is to ramming times；Cij=1 indicates to ram energy level C in differenceiAlong side
When mobile toward next tamping energy grade to a, will with ram energy level CjIt overlaps；It rams energy level not overlap with itself, Cii=
0；
Fitness function are as follows:
Wherein, Fit (t) is fitness function, f (Xi) indicate that ramming population of levels rams real time data according to i；Qi(k,k+1)Table
Show that completing k-th rams population of levels according to the process the time it takes for ramming population of levels evidence to kth+1, the Qi(k,k+1)=d
Di(k,k+1)+k·Ti(k,k+1)+l·Li(k,k+1)；Di(k,k+1)For the change number for ramming direction, Ti(k,k+1)To ram equipment more
Change number, Li(k,k+1)For the change number for ramming type, k ∈ [1, N-1]；D be ram direction when redirecting in ramming
Weight coefficient, k is the weight coefficient for ramming equipment replacement in ramming, and l is the power for ramming the change of type in always ramming
Weight coefficient, and meet d+k+l=1；
New gravitation search calculation formula is as follows:
Wherein, energy level i to be rammed is indicated with particle i, then Fi dIt (t) is the gravitation resultant force of particle i, Rand is represented
Be random number, which is [0,1],Its
Middle xi d(t) for particle i in t moment in the position of d dimension space, FijIndicate that gravitation of the particle i by particle j, G (t) are
Universal gravitational constant,α is attenuation coefficient, G0For initial gravitational constant, T is the time cycle, and ε is one small
Numerical constant, MpiIndicate passive gravitational mass, MajIndicate active gravitational mass, Rij(t) between t moment particle i and particle j
Euclidean distance,Wherein xi, xjFor particle i, the position of j in space.
In the above-described embodiments, can come wholly or partly by software, hardware, firmware or any combination thereof real
It is existing.When using entirely or partly realizing in the form of a computer program product, the computer program product include one or
Multiple computer instructions.When loading on computers or executing the computer program instructions, entirely or partly generate according to
Process described in the embodiment of the present invention or function.The computer can be general purpose computer, special purpose computer, computer network
Network or other programmable devices.The computer instruction may be stored in a computer readable storage medium, or from one
Computer readable storage medium is transmitted to another computer readable storage medium, for example, the computer instruction can be from one
A web-site, computer, server or data center pass through wired (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)
Or wireless (such as infrared, wireless, microwave etc.) mode is carried out to another web-site, computer, server or data center
Transmission).The computer-readable storage medium can be any usable medium or include one that computer can access
The data storage devices such as a or multiple usable mediums integrated server, data center.The usable medium can be magnetic Jie
Matter, (for example, floppy disk, hard disk, tape), optical medium (for example, DVD) or semiconductor medium (such as solid state hard disk Solid
State Disk (SSD)) etc..
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of 12000 kilonewton meter energy level dynamic compaction methods, which is characterized in that the 12000 kilonewton meter energy level dynamic compaction method
Include:
Step 1: carrying out first pass and ram, and main rammer energy level is 12000 kilonewton meters, is rammed using, and tamping point form presses 10m × 10m
Arranged in squares, the number of ramming for putting rammer no less than 10 are hit；
Step 2: ram for second time, and main rammer energy level is 12000 kilonewton meters, is rammed using, and tamping point is located at first pass 10m
× 10m square center；
Step 3: third is carried out all over ramming, auxiliary rammer energy level is 6000 kilonewton meters, is rammed using, and tamping point spacing 5m × 5m is square
Shape；
Step 4: ram for the 4th time, and tamping energy is 3000 kilonewton meters, using full rammer.
2. 12000 kilonewton meter energy level dynamic compaction method as described in claim 1, which is characterized in that the first pass, second time with
Third is all over the last two average ramming volume≤200mm hit rammed.
3. 12000 kilonewton meter energy level dynamic compaction method as described in claim 1, which is characterized in that in step 1, tamping point spacing
10m；In step 2, the number of ramming for putting rammer no less than 10 is hit.
4. 12000 kilonewton meter energy level dynamic compaction method as described in claim 1, which is characterized in that in step 3, when point rams, often
Point 10 is hit；It in step 4, is completely rammed after backfilling first, second and third time tamping pit, hammering overlap joint 1/4, every 2 is hit.
5. a kind of ground rammed using 12000 kilonewton meter energy level dynamic compaction methods described in claim 1.
6. the control method of strong rammer energy level, feature in 12000 kilonewton meter energy level dynamic compaction methods described in a kind of pair of claim 1
It is, the control method of the strong rammer energy level includes:
It is examined using first pass tamping point, second time tamping point, third all over the strong rammer pressure sensor that tamping point region is respectively arranged
Data are rammed in survey, and the data that will test are transferred to computer；
Using computer to ramming ramming 12000 kilonewton meter energy levels, ramming 6000 kilonewton meter energy levels, ram 3000 for equipment
Kilonewton meter energy level is controlled.
7. the control method of strong rammer energy level as claimed in claim 6, which is characterized in that number is rammed in the detection of strong rammer pressure sensor
In, energy level signal is rammed to the difference got and is pre-processed, to reduce artifacts；
Filter is created, by pretreated signal filtering to required frequency range；
Using Phase synchronization analysis method, calculates phase of the signal of each frequency range between various time points every two channel and close
System obtains dynamic function connection matrix；It obtains corresponding correctly ramming population of levels evidence；
Preprocess method includes: to carry out 0.5-35Hz bandpass filtering to the signal data of acquisition, then remove interference signal, reject puppet
Mark data are to obtain required ramming energy level signal；
The creation method of filter are as follows: signal is five frequency ranges, i.e. δ (0.5-10Hz), θ (16- using WAVELET PACKET DECOMPOSITION
25Hz), α (25-35Hz)；
Each frequency range is calculated using PGC demodulation value PLV rams energy level signal in various time points between every two channel
Phase relation, specific calculation formula are as follows:
PLV=| < exp (j { Φi(t)-Φj(t)})>|；
Wherein, Φi(t) and Φj(t) be respectively electrode i and j instantaneous phase；
The phase value of signal can be calculated using Hilbert transform, specific formula is as follows:
xi(τ) is the continuous time signal of electrode i, and τ is a time variable, and t indicates time point, and PV is Cauchy's principal value；
Instantaneous phase is calculated as follows:
Likewise it is possible to calculate instantaneous phase Φj(t)；
If selected energy level port number of ramming is M, ramming energy level time point number is T, and different channels is constructed using channel two-by-two
It is right, the PLV value in all channels pair is calculated, obtains M × M × T three-dimensional matrice K at this time, wherein M × M is a time point
Upper triangular matrix:
Each element K of KijtFor the PLV value on t time point between i-th of electrode and j-th of electrode, which is dynamic function
Energy connection matrix rams the phase relation of energy level channel between any two, also the space letter comprising ramming energy level channel comprising difference
Breath and temporal information；
Computer is to ramming ramming 12000 kilonewton meter energy levels, ramming 6000 kilonewton meter energy levels, ram 3,000,000 Ns for equipment
The rice energy level that pauses specifically includes in being controlled:
According to ram 12000 kilonewton meter energy levels, ram 6000 kilonewton meter energy levels, ram 3000 kilonewton meter energy levels movement about
Beam relationship constructs three-dimensional space interference matrix, obtains feasible control sequence sequence；
Real time data is rammed as the index of control sequence sequence evaluation using what difference rammed energy level, is constructed and is adapted to gravitation and searches
The fitness function of rope algorithm；
The calculation formula of gravitation searching algorithm is redefined and is transformed, new gravitation search is constructed and calculates
Formula；
Control sequence sequence is treated using new gravitation search calculation formula and is iterated solution, acquired calculated result
As optimum control generic sequence；
Three-dimensional space interference matrix is as follows:
Wherein, Ma is three-dimensional space control sequence interference matrix, and a is to ram energy level direction, and a ∈ { ± x, ± y, ± z }；
C1C2...CnIndicate each population of levels evidence to be rammed；N is to ramming times；Cij=1 indicates to ram energy level C in differenceiAlong side
When mobile toward next tamping energy grade to a, will with ram energy level CjIt overlaps；It rams energy level not overlap with itself, Cii=
0；
Fitness function are as follows:
Wherein, Fit (t) is fitness function, f (Xi) indicate that ramming population of levels rams real time data according to i；Qi(k,k+1)It has indicated
Population of levels is rammed according to the process the time it takes for ramming population of levels evidence to kth+1, the Q at k-thi(k,k+1)=d
Di(k,k+1)+k·Ti(k,k+1)+l·Li(k,k+1)；Di(k,k+1)For the change number for ramming direction, Ti(k,k+1)To ram equipment more
Change number, Li(k,k+1)For the change number for ramming type, k ∈ [1, N-1]；D be ram direction when redirecting in ramming
Weight coefficient, k is the weight coefficient for ramming equipment replacement in ramming, and l is the power for ramming the change of type in always ramming
Weight coefficient, and meet d+k+l=1；
New gravitation search calculation formula is as follows:
Wherein, energy level i to be rammed is indicated with particle i, then Fi dIt (t) is the gravitation resultant force of particle i, what Rand was represented is
Random number, the random number value range are [0,1],Wherein
xi d(t) for particle i in t moment in the position of d dimension space, FijIndicate that gravitation of the particle i by particle j, G (t) are ten thousand
There is gravitational constant,α is attenuation coefficient, G0For initial gravitational constant, T is the time cycle, and ε is a small value
Constant, MpiIndicate passive gravitational mass, MajIndicate active gravitational mass, Rij(t) Europe between t moment particle i and particle j
Family name's distance,Wherein xi, xjFor particle i, the position of j in space.
8. a kind of computer program for realizing the control method of strong rammer energy level described in claim 6~7 any one.
9. a kind of information data processing terminal for realizing the control method of strong rammer energy level described in claim 6~7 any one.
10. a kind of computer readable storage medium, including instruction, when run on a computer, so that computer executes such as
The control method of strong rammer energy level described in claim 6-7 any one.
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