CN105986567A - Quick resonance compacting method for island-reef coral filled fragment sandy soil - Google Patents
Quick resonance compacting method for island-reef coral filled fragment sandy soil Download PDFInfo
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- CN105986567A CN105986567A CN201510053459.2A CN201510053459A CN105986567A CN 105986567 A CN105986567 A CN 105986567A CN 201510053459 A CN201510053459 A CN 201510053459A CN 105986567 A CN105986567 A CN 105986567A
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- vibration head
- quickly
- vibration
- resonate
- sandy soil
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Abstract
The invention discloses a quick resonance compacting method for island-reef coral filled fragment sandy soil. The method includes: under coordination of high-pressure water flushing, inserting vibration heads of a plurality of vibrating impacters into treated sandy soil to a required depth, gradually lifting the vibration heads, filling sandy soil or coral reef fragments into holes formed by vibrating impact on the spot in each-time lifting of 0.5-2m, staying for vibration for appropriate time, continuing to lift, and repeating the steps of filling the sandy soil or the coral reef fragments and staying for vibration until reaching the top of the treated soil, wherein the vibration heads are arranged at intervals of 1-8m, and motor power of the vibration heads is 75-320KW. Due to the fact of on-spot adoption of the coral reef fragments as filler, quickness in construction and environment friendliness are realized, and construction cost is saved by about 30% as compared with that of an existing method.
Description
Technical field
The present invention relates to Sandy Soil Foundation processing technology field, be specifically related to a kind of occasions such as islands and reefs that are applicable to
The densification process that quickly resonates of islands and reefs Corallium Japonicum Kishinouye hydraulic reclamation fragment sand.
Background technology
For the process of Sandy Soil Foundation, the method that prior art is the most a lot, conventional such as water pendant sand changes
Fill out, strong rammer, cement mixing pile, lime-soil compaction pile, be applicable to process clay content be not more than 10% medium sand,
The vibrocompaction etc. of coarse sand ground etc..But, owing to the geology of Sandy Soil Foundation has the following characteristics that one
Being that top aeolian sand is the loosest, bearing capacity is relatively low and uneven, and engineering property is poor；Two is that sand cosmid contains
Measuring glutinous poly-property between less, sand granule poor, void ratio is big, seepage of water is strong；Three is internal friction between unsaturated sand grains
Power is bigger；Four to be that phreatic water is contained abundant etc..Thus, use above-mentioned conventional method for processing foundation to sand
When property soil base processes, have that input cost is higher the most to some extent, complicated construction technique, construction
Inefficient, stiffening basic ground effect is poor, be not suitable for number of drawbacks and the deficiencies such as deep foundation base reinforcing.
Thus, the above-mentioned geological characteristics of Sandy Soil Foundation makes the at present conventional all kinds of method for processing foundation all can not be complete
Complete applicable.
CN103215944B Chinese patent discloses a kind of several vibrating impacters resonance ground processing equipment and side
Method, construction equipment disclosed in this patent is several vibrators, is suspended on equipment body cantilever including by hoist cable
On crossbeam (channel-section steel), crossbeam two ends arrange 2 vibration head (vibrating device), vibration head further through cable wire
On be provided with water inlet and be connected to high-pressure hydraulic pump.The step of corresponding construction method is included in high pressure water flushing
Under cooperation, shaker arm is inserted the processed soil body and carries out vibratory compaction to the required degree of depth, promote the most step by step,
The reasonable time that all pauses after every time promoting certain altitude is to carry out vibratory compaction, so until promoting and being unearthed
Body.Apparatus and method for disclosed in this patent is preferable for common Sandy Soil Foundation treatment effect, but for island
The sandy soil of the occasions such as reef is the most inapplicable, and the problem being primarily present is as follows:
1, the soil body of islands and reefs constitutes more complicated, the most often with a lot of rubbles and coral reef fragment,
Coral reef therein again because of the difference of its Formed age and there is bigger difference, such as shatter value, hardness,
Buried depth etc..
2, need to fill in the pore-forming of shaker arm vibrations formation to blow during several vibrating impacter resonance constructions
Banketing, and often lack this soil of filling on islands and reefs, this also results in construction cost and is significantly increased.
3, the environment on islands and reefs is the moistest, adds in sea water more containing salinity, causes construction equipment
The more wet and slippery thickness of appearance, is unfavorable for the heat radiation of equipment, is frequently encountered by construction equipment mistake during practice of construction
The situation of heat, serious meeting causes motor to be burned.
Accordingly, it would be desirable to the processing method of existing Sandy Soil Foundation is improved, to be adapted for islands and reefs etc.
The closely knit process construction of the Sandy Soil Foundation of occasion.
Summary of the invention
The primary and foremost purpose of the present invention is that and overcomes existing Sandy Soil Foundation processing method not to be suitable for islands and reefs
Etc. the shortcoming of occasion, thus provide the densification process that quickly resonates of a kind of islands and reefs Corallium Japonicum Kishinouye hydraulic reclamation fragment sand.
The densification process that quickly resonates of the islands and reefs Corallium Japonicum Kishinouye hydraulic reclamation fragment sand of the present invention, the construction that the method uses
Equipment is several vibrators, and including the crossbeam being suspended on equipment body cantilever by hoist cable, crossbeam two ends are again
Arranging two vibration head by cable wire, vibration head is provided with water inlet, this water inlet is connected to by pipeline
High-pressure hydraulic pump, wherein, described rapid densification method is included under the cooperation of high pressure water flushing, by several vibrating impacters
Vibration head insert in processed sandy soil to the most required degree of depth, promote vibration head the most step by step, often promote
0.5～2 meter, insert in the pore-forming that vibroflotation is formed, when stop vibration is suitable with sand or coral reef fragment on the spot
Continue to lift up after between, repeat back-up sand soil or coral reef fragment and stop the step of vibration until rising to and being located
Reason soil body top, wherein, the spacing of described vibration head is set to 1～8 meter, the motor merit of described vibration head
Rate is 75～320KW.
According to embodiments of the invention, described several vibrators are provided with multiple crossbeam.
According to the present invention, the crossbeam two ends balance of described several vibrators is provided with multiple vibration head.
According to a preferred embodiment of the invention, the inside of the shell wall of the motor of described vibration head is entered from top to bottom
One step offers several through holes, and leader High-Pressure Water is through this through hole.
According to the present invention, in the motor of described vibration head, it is provided with temperature sensor, for the temperature to motor
It is monitored；Accordingly, described vibrator is provided with controller, and is provided with frequency modulation and voltage modulation temperature-limiting device, with
Motor overheating is prevented by the way of frequency modulation and voltage modulation.
According to the present invention, described vibrator is provided with controller, and in record work progress automatically, each shakes
The size of dynamic compact electric current corresponding to the degree of depth, to be further ensured that construction quality.
According to the present invention, the closely knit degree of depth of described processed hydraulic reclamation thing is 3～50 meters.
Preferred according to the present invention, during described vibration head inserts processed sandy soil, high-pressure hydraulic pump carries
The pressure of confession is 5～15MPa, and its output is 100L/min～900L/min.
Preferred according to the present invention, during described vibration head promotes, the pressure that high-pressure hydraulic pump provides is
2.5～15MPa, and its output is 150L/min～650L/min.
Further, the time paused in described work progress is 2～40 seconds.
The present invention compared with prior art has the advantage that
1, take full advantage of the own characteristic that on islands and reefs, coral reef fragment is many, gather materials on the spot, guarantee construction
Cost has significantly been saved on the basis of quality.
2, through hole has been offered in the initiative inside at motor housing wall, is introduced by water under high pressure in through hole with right
Motor is lowered the temperature, and what the motor overheating that well solving constructs on islands and reefs is frequently encountered by even burnt out asks
Topic.
3, speed of application is fast, and more environmentally-friendly, and construction cost compares existing method can also save about 30%.
Accompanying drawing explanation
Fig. 1 is the structural representation of several vibrating impacters of embodiment 1.
Fig. 2 shows that motor housing pars intramuralis offers the close-up schematic view of through hole.
Detailed description of the invention
Below in conjunction with specific embodiment, the quickly resonance to the islands and reefs Corallium Japonicum Kishinouye hydraulic reclamation fragment sand of the present invention is closely knit
Method is described in further detail.Should be understood that following example are merely to illustrate the present invention not for restriction
The scope of the present invention.
Embodiment 1
The densification process that quickly resonates of the islands and reefs Corallium Japonicum Kishinouye hydraulic reclamation fragment sand of the present invention, the equipment used is permissible
With reference to CN103215944B Chinese patent.As it is shown in figure 1, several the vibrating impacters of the present embodiment include leading to
Crossing the crossbeam 2 that hoist cable 1 is suspended on the cantilever 9 of equipment body 8, the two ends of this crossbeam 2 are further through cable wire
3 arrange two vibration head 4, and vibration head 4 is provided with water under high pressure water inlet 6, this water under high pressure water inlet 6
Being connected to high-pressure hydraulic pump 7 by pipeline, wherein, the vibration head 4 of cable wire 3 and correspondence thereof is on crossbeam 2
Position is adjustable, i.e. can move in the longitudinal direction along crossbeam 2.
In the present embodiment, described equipment body 8 can arrange multiple crossbeam 2, to configure more vibration head
4, this will be apparent to the person skilled in the art；It addition, can set on a crossbeam 2
Putting more vibration head 4, such as three or four, arranging as long as balancing on crossbeam 2, this for
Also it is apparent from for those skilled in the art.
Further, since the air humidity on islands and reefs is relatively big and more containing salinity, cause construction equipment appearance ratio
More wet and slippery thickness, is unfavorable for the heat radiation of equipment, is frequently encountered by the feelings that construction equipment is overheated during practice of construction
Condition, serious meeting causes motor to be burned.Overheated situation is easily there is in order to solve motor, as in figure 2 it is shown,
The inside at motor housing wall 10 of present invention initiative offers several through holes 11 from top to bottom, and draws
Lead partial high pressure water and flow through this through hole 11, motor to be lowered the temperature by water under high pressure.
Further, described vibrator is provided with controller, can use common single-chip microcomputer, and be provided with frequency modulation tune
Pressure temperature-limiting device, accordingly, is provided with temperature sensor in the motor of described vibration head, for motor
Temperature is monitored, and coordinates frequency modulation and voltage modulation temperature-limiting device, to pass through frequency modulation and voltage modulation when motor temperature is too high
Mode, reduces motor temperature, prevents motor from damaging because of overheated.Additionally, described controller record also automatically
The size of each vibration compact electric current corresponding to the degree of depth in work progress, to be further ensured that construction matter
Amount.Said temperature sensor and frequency modulation and voltage modulation temperature-limiting device itself are all that prior art is existing, non-invention
Inventive point place, be not described in detail the most here.
Embodiment 2
Certain islands and reefs Corallium Japonicum Kishinouye hydraulic reclamation fragment sand foundation, thickness is 3～18 meters, rubble and coral reef fragment content
3～42wt%, infiltration coefficient 10-3cm/s.Design requires: the bearing capacity of 18 meters of Sandy Soil Foundations reaches
120KPa。
Before construction, conventionally, the Sandy Soil Foundation that need to construct is carried out the closely knit degree of depth of layer of sand to survey
Amount, the closely knit degree of depth of described layer of sand is 18 meters.
Using several vibrating impacters described in embodiment 1 to construct, power of motor 320KW, vibrating impacter is horizontal
The two ends of beam are provided with two vibration head by cable wire, and the spacing adjusted between two vibration head is 5 meters, often
Individual vibrating device is connected with high-pressure hydraulic pump respectively, and on the Sandy Soil Foundation constructed, selected several need construction
Position, described needs construction location suitable with the distributing position of vibration head, each construction party needing construction location
Method is the most identical, and for any one needs construction location, its work progress is as follows:
The first step, is directed at the position that need to construct by the vibration head of several vibrators；
Second step, under the cooperation of high pressure water flushing, controls vibration head below cable wire vertically into constructing
In Sandy Soil Foundation, until dropping to the closely knit degree of depth of described layer of sand；During vibration head moves down, described height
The pressure that water pump provides is 10MPa, and its output is 400L/min；
3rd step, controls the vibration head below cable wire and is progressively lifted up, the distance control that vibration head promotes every time
Make at 1.5～2 meters, the pause time of 40 seconds after every time promoting；So step up until vibration head promotes
Top to the processed soil body；After vibration head promotes each time, take rubble on the spot and coral reef fragment is inserted and shaken
In the dynamic pit formed；In vibration head lifting process, described high-pressure hydraulic pump provide Stress control at 2.5MPa,
And output controls at 150L/min, wherein partial high pressure water offer from motor housing pars intramuralis several
Through hole flows through, so that motor is lowered the temperature.
According to design requirement, repeat the step 3 time of above to three, then shift position, other need to be executed
Station is put and is carried out vibration construction.
Detecting after construction, the bearing capacity of Sandy Soil Foundation reaches to design requirement.
Through measuring and calculating, construct as stated above, due to take on the spot rubble and coral reef fragment as filler etc. because of
Element, not only speed of application is fast, and more environmentally-friendly, and construction cost is compared existing method and can also be saved about
30%.
Embodiment 3
Certain islands and reefs Corallium Japonicum Kishinouye hydraulic reclamation fragment sand foundation, thickness is 8～40 meters, rubble and coral reef fragment content
10～50wt%, infiltration coefficient 10-4cm/s.Design requires: the bearing capacity of 40 meters of Sandy Soil Foundations reaches
120KPa。
Before construction, conventionally, the Sandy Soil Foundation that need to construct is carried out the closely knit degree of depth of layer of sand to survey
Amount, the closely knit degree of depth of described layer of sand is 40 meters.
Using several vibrating impacters described in embodiment 1 to construct, power of motor 220KW, vibrating impacter is horizontal
The two ends of beam are provided with two vibration head by cable wire, and the spacing adjusted between two vibration head is 1 meter, often
Individual vibrating device is connected with high-pressure hydraulic pump respectively, and on the Sandy Soil Foundation constructed, selected several need construction
Position, described needs construction location suitable with the distributing position of vibration head, each construction party needing construction location
Method is the most identical, and for any one needs construction location, its work progress is as follows:
The first step, is directed at the position that need to construct by the vibration head of several vibrators；
Second step, under the cooperation of high pressure water flushing, controls vibration head below cable wire vertically into constructing
In Sandy Soil Foundation, until dropping to the closely knit degree of depth of described layer of sand；During vibration head moves down, described height
The pressure that water pump provides is 5.0MPa, and its output is 100L/min；
3rd step, controls the vibration head below cable wire and is progressively lifted up, the distance control that vibration head promotes every time
Make at 1.0～1.5 meters, the pause time of 2 seconds after every time promoting；So step up until vibration head promotes
Top to the processed soil body；After vibration head promotes each time, take rubble on the spot and coral reef fragment is inserted and shaken
In the dynamic pit formed；In vibration head lifting process, described high-pressure hydraulic pump provide Stress control at 10MPa,
And output controls at 500L/min, wherein partial high pressure water offer from motor housing pars intramuralis several
Through hole flows through, so that motor is lowered the temperature.
According to design requirement, repeat the step secondary of above to three, then shift position, other need to be executed
Station is put and is carried out vibration construction.
Detecting after construction, the bearing capacity of Sandy Soil Foundation reaches to design requirement.
Through measuring and calculating, construct as stated above, due to take on the spot rubble and coral reef fragment as filler etc. because of
Element, not only speed of application is fast, and more environmentally-friendly, and construction cost is compared existing method and can also be saved about
30%.
Embodiment 4
Certain islands and reefs Corallium Japonicum Kishinouye hydraulic reclamation fragment sand foundation, thickness is 15～50 meters, and rubble and coral reef fragment contain
Amount 8～45wt%, infiltration coefficient 10-3cm/s.Design requires: the bearing capacity of 50 meters of Sandy Soil Foundations reaches
110KPa。
Before construction, conventionally, the Sandy Soil Foundation that need to construct is carried out the closely knit degree of depth of layer of sand to survey
Amount, the closely knit degree of depth of described layer of sand is 50 meters.
Several vibrating impacters described in embodiment 1 are used to construct, power of motor 75KW, vibrating impacter crossbeam
Two ends cable wire is provided with two vibration head, the spacing adjusted between two vibration head is 8 meters, each
Vibrating device is connected with high-pressure hydraulic pump respectively, several positions of need to constructing selected on the Sandy Soil Foundation constructed
Put, described need construction location suitable with the distributing position of vibration head, each construction method needing construction location
The most identical, for any one needs construction location, its work progress is as follows:
The first step, is directed at the position that need to construct by the vibration head of several vibrators；
Second step, under the cooperation of high pressure water flushing, controls vibration head below cable wire vertically into constructing
In Sandy Soil Foundation, until dropping to the closely knit degree of depth of described layer of sand；During vibration head moves down, described height
The pressure that water pump provides is 15MPa, and its output is 900L/min；
3rd step, controls the vibration head below cable wire and is progressively lifted up, the distance control that vibration head promotes every time
Make at 0.5～1 meter, the pause time of 30 seconds after every time promoting；So step up until vibration head promotes
Top to the processed soil body；After vibration head promotes each time, take rubble on the spot and coral reef fragment is inserted and shaken
In the dynamic pit formed；In vibration head lifting process, described high-pressure hydraulic pump provide Stress control at 15MPa,
And output controls at 650L/min, wherein partial high pressure water offer from motor housing pars intramuralis several
Through hole flows through, so that motor is lowered the temperature.
According to design requirement, repeat the step 3 time of above to three, then shift position, other need to be executed
Station is put and is carried out vibration construction.
Detecting after construction, the bearing capacity of Sandy Soil Foundation reaches to design requirement.
Through measuring and calculating, construct as stated above, due to take on the spot rubble and coral reef fragment as filler etc. because of
Element, not only speed of application is fast, and more environmentally-friendly, and construction cost is compared existing method and can also be saved about
30%.
Claims (10)
1. the densification process that quickly resonates of islands and reefs Corallium Japonicum Kishinouye hydraulic reclamation fragment sand, the construction that the method uses
Equipment is several vibrators, and including the crossbeam being suspended on equipment body cantilever by hoist cable, crossbeam two ends are again
Arranging two vibration head by cable wire, vibration head is provided with water inlet, this water inlet is connected to by pipeline
High-pressure hydraulic pump, it is characterised in that described rapid densification method is included under the cooperation of high pressure water flushing, by several heads
The vibration head of vibrating impacter is inserted in processed sandy soil to the required degree of depth, promotes vibration head the most step by step,
Often promote 0.5～2 meter, insert in the pore-forming that vibroflotation is formed with sand or coral reef fragment on the spot, stop vibration
Continue to lift up after appropriate time, repeat back-up sand soil or coral reef fragment and stop the step of vibration until promoting
To processed soil body top, wherein, the spacing of described vibration head is set to 1～8 meter, described vibration head
Power of motor is 75～320KW.
2. quickly resonate densification process as claimed in claim 1, it is characterised in that described several vibrations
Device is provided with multiple crossbeam.
3. quickly resonate densification process as claimed in claim 1 or 2, it is characterised in that described several heads
The crossbeam two ends balance of vibrator is provided with multiple vibration head.
4. quickly resonate densification process as claimed in claim 1, it is characterised in that described vibration head
The inside of the shell wall of motor offers several through holes, and leader High-Pressure Water the most further
Through this through hole.
5. quickly resonate densification process as claimed in claim 1, it is characterised in that described vibration head
It is provided with temperature sensor in motor, is monitored for the temperature of motor；Accordingly, described vibrator
It is provided with controller, and is provided with frequency modulation and voltage modulation temperature-limiting device, in the way of by frequency modulation and voltage modulation, prevent motor mistake
Heat.
6. quickly resonate densification process as claimed in claim 1, it is characterised in that described vibrator sets
Having controller, in record work progress automatically, each vibration compact electric current corresponding to the degree of depth is big
Little, to be further ensured that construction quality.
7. quickly resonate densification process as claimed in claim 1, it is characterised in that described being processed is blown
The closely knit degree of depth filling out thing is 3～50 meters.
8. quickly resonate densification process as claimed in claim 1, it is characterised in that described vibration head is inserted
During entering treated object, the pressure that high-pressure hydraulic pump provides is 5～15MPa, and its output is
100L/min～900L/min.
9. quickly resonate densification process as claimed in claim 1, it is characterised in that described vibration head carries
During Shenging, high-pressure hydraulic pump provide pressure be 2.5～15MPa, and its output be 150L/min～
650L/min。
10. quickly resonate densification process as claimed in claim 1, it is characterised in that described work progress
The time of middle pause is 2～40 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510053459.2A CN105986567A (en) | 2015-02-02 | 2015-02-02 | Quick resonance compacting method for island-reef coral filled fragment sandy soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510053459.2A CN105986567A (en) | 2015-02-02 | 2015-02-02 | Quick resonance compacting method for island-reef coral filled fragment sandy soil |
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| CN201510053459.2A Pending CN105986567A (en) | 2015-02-02 | 2015-02-02 | Quick resonance compacting method for island-reef coral filled fragment sandy soil |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2238328Y (en) * | 1995-11-26 | 1996-10-23 | 蔡贞辉 | Self-cooling floating water electric pump |
| JP4014403B2 (en) * | 2001-12-25 | 2007-11-28 | 鹿島建設株式会社 | Ground improvement method |
| CN102465523A (en) * | 2010-11-19 | 2012-05-23 | 葛辉 | Dry and dense resonance method for reinforcing soft soil foundation of new hydraulic-fill sand |
| CN103215944A (en) * | 2013-04-10 | 2013-07-24 | 上海港湾基础建设（集团）有限公司 | Multi-vibroflot resonance ground treatment equipment and method |
| CN203808040U (en) * | 2014-01-29 | 2014-09-03 | 上海港湾基础建设（集团）有限公司 | Detection and automatic recording multi-point resonator |
-
2015
- 2015-02-02 CN CN201510053459.2A patent/CN105986567A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2238328Y (en) * | 1995-11-26 | 1996-10-23 | 蔡贞辉 | Self-cooling floating water electric pump |
| JP4014403B2 (en) * | 2001-12-25 | 2007-11-28 | 鹿島建設株式会社 | Ground improvement method |
| CN102465523A (en) * | 2010-11-19 | 2012-05-23 | 葛辉 | Dry and dense resonance method for reinforcing soft soil foundation of new hydraulic-fill sand |
| CN103215944A (en) * | 2013-04-10 | 2013-07-24 | 上海港湾基础建设（集团）有限公司 | Multi-vibroflot resonance ground treatment equipment and method |
| CN203808040U (en) * | 2014-01-29 | 2014-09-03 | 上海港湾基础建设（集团）有限公司 | Detection and automatic recording multi-point resonator |
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Address after: 201507 Shanghai Jinshan District, Caojing Town, Ting Wei Road, 3316, 1, two, 207 rooms. Applicant after: Shanghai Bay infrastructure construction (Group) Limited by Share Ltd Address before: 201507 eight Caojing Town, Jinshan District, Shanghai Applicant before: Shanghai harbor infrastructure (Group) Co., Ltd. |
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