CN107859029B - It is a kind of sea deep cement soil mixer ship processor bottom out judgment method - Google Patents
It is a kind of sea deep cement soil mixer ship processor bottom out judgment method Download PDFInfo
- Publication number
- CN107859029B CN107859029B CN201711035238.8A CN201711035238A CN107859029B CN 107859029 B CN107859029 B CN 107859029B CN 201711035238 A CN201711035238 A CN 201711035238A CN 107859029 B CN107859029 B CN 107859029B
- Authority
- CN
- China
- Prior art keywords
- processor
- setting
- depth
- loading
- torque
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
Abstract
It is a kind of sea deep cement soil mixer ship processor bottom out judgment method, summarize are as follows: there is apparent " mutability " to change in the loading of hard stratum and torque in Soft Soil Layer using processor in operation, the present invention carries out bottoming out judgement by the changing value of processor loading and torque whereby.Processor loading and torque value, in conjunction with the distribution situation data of soil layer in geological prospecting, the loading of setting processing machine and change in torque threshold value are recorded in the test carried out before construction.Since the unexpected factors such as interference may cause " false to bottom out " in the inhomogeneities and work progress of ocean foundation soil spatial distribution, setting, which is repeatedly bottomed out, to be confirmed to bottoming out judgement.
Description
Technical field
The invention belongs to Yu Haiyang's foundation treatment engineering technical fields, and in particular at a kind of sea deep cement soil mixer ship
Reason machine bottoms out judgment method.
Background technique
Deep Mixing Method is a kind of method for processing foundation for reinforcing foundation in saturated soft soil, utilizes cement, lime, flyash
Equal materials are as curing agent host agent, by special Mixing Machine, on the spot by weak soil and curing agent (slurry or powder in ground
Body shape) action of forced stirring, utilize a series of physical generated between curing agent and weak soil --- chemical reaction hardens into weak soil
Available ground with globality, water stability and some strength.So-called " deep layer " paddling process is relative to " shallow-layer " paddling process
For, marine deep cement soil paddling process is that it is soft at sea to reinforce seabed on the spot using special mixer ship and Mixing Machine
A kind of ocean method for processing foundation of soil, reinforcement depth are usually more than 5m, and maximum reinforcement depth is up to 60m.
For ocean foundation soil due to sedimentation time and the otherness of depositional environment, spatial distribution has inhomogeneities, construction
Foundation soil distribution situation cannot be verified completely by exploring, and in marine Deep Mix Column into Supporting work progress, need to be wanted according to design
It asks, verifies the soft or hard well-defined horizons in a bottom.
Summary of the invention
The object of the invention is to solve the problems, such as that marine deep cement soil mixer ship processor bottoms out judgment technology, to realize certainly
It is dynamic, accurate to judge the soft or hard well-defined horizons in stake bottom.Fully automatic operation not only may be implemented in this method, but also can be bottomed out by setting
Number excludes some interference such as " false to bottom out ".
The method of the present invention technical solution:
Principle Method:
A kind of sea deep cement soil mixer ship processor bottoms out judgment method, summarizes are as follows: utilize (this of processor in operation
Field already belongs to well known engineering machinery) there is apparent " mutability " to change in the loading of hard stratum and torque in Soft Soil Layer,
The present invention carries out bottoming out judgement by the changing value of processor loading and torque whereby.In the test carried out before construction at record
The loading of reason machine and torque value, in conjunction with the distribution situation data of soil layer in geological prospecting, the loading of setting processing machine and change in torque threshold
Value.
Further, due in the inhomogeneities and work progress of ocean foundation soil spatial distribution interference etc. it is unexpected because
Element may cause " false to bottom out ", therefore sets repeatedly to bottom out and confirm to bottoming out judgement.
Based on principles above thinking, the present invention, which further provides a kind of marine deep cement soil mixer ship processor and bottoms out, to be sentenced
Disconnected method, includes the following steps:
(1) parameter setting is bottomed out
Winch fall off rate V when bottoming out that reduces speed now is set in construction management system software1, bottom out climbing speed V2, visit
Bottom fall off rate V3, bottom out deceleration start depth D1, bottom out upper limit depth difference Δ Du, bottom out minimum air velocity difference Δ Dd, bottom out rising
Height D2, bottom out times N, processor Contact torque threshold value TTWith loading threshold value WT。
Wherein:
Bottom out upper limit depth difference Δ Du: according to projected depth determine start bottom out upper depth limit；
Bottom out minimum air velocity difference Δ Dd: end depth limit is bottomed out according to what projected depth determined；
Bottom out lifting height D2Define the practical lifting height of processor.
(2) process control is bottomed out
1. bottoming out deceleration beginning depth (D >=D when processor drops to1) when, (V=V is slowed down by setting rate1)。
2. when processor loading is decreased to given threshold (W≤WT) or torque increase to given threshold (T >=TT) when, it bottoms out
Number adds 1.If be less than setting bottoms out times N, rises by the climbing speed that bottoms out of setting, reach and bottom out lifting height D2
When, start to bottom out again according to the fall off rate that bottoms out of setting；If having reached when bottoming out number of setting, it is deep that record bottoms out end
Degree, bottoms out normal termination.
(3) abnormality processing is bottomed out
1. loading is not decreased to given threshold or torque is not increased to and set if processor is decrease beyond when bottoming out minimum air velocity
Determine threshold value, is then not up to hard stratum in upper and lower limit depth in bottoming out for setting, bottoms out failure.
2. if loading is decreased to given threshold or torque increases to setting when processor decline not up to bottoms out upper limit depth
Threshold value, then bottom out exception, and stopping bottoms out carry out anomaly analysis.
Detailed description of the invention
Fig. 1 is that processor of the present invention bottoms out judgement control flow chart.
Fig. 2 is that processor of the present invention bottoms out process schematic.
Specific embodiment
With reference to embodiments and attached drawing is described further the present invention.
Embodiment 1: it bottoms out automatically
(1) according to cement mixing method design drawing, in conjunction with periphery geology borehole data, preliminary judgement operating area pan soil
Layer buried depth of top surface.
(2) winch fall off rate when bottoming out that reduces speed now is set in construction management system software, bottoms out climbing speed, visit
Bottom fall off rate, bottom out deceleration start depth, bottom out upper limit depth difference, bottom out minimum air velocity is poor, bottom out lifting height, bottom out it is secondary
Number, processor Contact torque threshold value and loading threshold value.
(3) such as Fig. 1, processor drops to when bottoming out deceleration and starting depth, automatic retarding decline.
(4) processor loading is decreased to given threshold or when torque increases to given threshold, and system, which automatically records, to be bottomed out time
Number plus 1.If being less than the number that bottoms out of setting, such as Fig. 1, processor is risen by the climbing speed that bottoms out of setting, is reached and is bottomed out
Rise D2When, start to bottom out again according to the fall off rate that bottoms out of setting；If having reached when bottoming out number of setting, record is visited
Bear building-up beam depth, bottoms out normal termination.
Referring to Fig. 1, details are as follows by step for control algolithm:
Step 1: controller acquisition processor encoder data judges whether current processor depth reaches and bottoms out beginning
Depth, if it is entering step two.
Step 2: processor declines according to the decrease speed that bottoms out of setting, while acquisition processor tension sensor data,
Judge whether processor loading occurs rapid drawdown, if not provided, three are entered step, if so, entering step five.
Step 3: controller acquisition processor torque value, and judge whether torque occurs cataclysm, if so, entering step
Five, if not provided, entering step four.
Step 4: processor continuation declines according to decrease speed is bottomed out, while controller acquisition processor encoder data,
Judge whether current processor depth reaches to bottom out projected depth and bottom out the sum of lower limit, if so, entering step eight.
Step 5: identification bottoms out number and adds 1, and is such as more than that setting bottoms out number, into step compared with bottoming out number with setting
Rapid seven, it is such as less than, enters step six.
Step 6: processor bottoms out the rate of climb according to setting and rises, while controller acquisition processor encoder data,
Judge whether current processor depth reaches and bottom out lifting height, if so, return step two.
Step 7: record bottoms out end depth, bottoms out fair termination.
Step 8: not up to hard stratum, identification bottom out failure, bottom out abnormal end.
Claims (2)
1. a kind of sea deep cement soil mixer ship processor bottoms out judgment method, which is characterized in that according to processor loading and
The changing value of torque carries out bottoming out judgement；Described bottom out judges to indicate in Deep Mix Column into Supporting work progress at sea, need
According to design requirement, the soft or hard well-defined horizons in a bottom is verified；
Processor loading and torque value are recorded in the test carried out before construction, in conjunction with the distribution situation number of soil layer in geological prospecting
According to the loading of setting processing machine and change in torque threshold value；
Specifically include following process:
Firstly, bottoming out parameter setting:
Winch fall off rate V when bottoming out that reduces speed now is set in construction management system software1, bottom out climbing speed V2, bottom out down
Reduction of speed rate V3, bottom out deceleration start depth D1, bottom out upper limit depth difference Δ Du, bottom out minimum air velocity difference Δ Dd, bottom out lifting height
D2, bottom out times N, processor Contact torque threshold value TTWith loading threshold value WT；
Wherein:
Bottom out upper limit depth difference Δ Du: according to projected depth determine start bottom out upper depth limit；
Bottom out minimum air velocity difference Δ Dd: end depth limit is bottomed out according to what projected depth determined；
Bottom out lifting height D2Define the practical lifting height of processor；
Then, it carries out bottoming out process control:
1. bottoming out deceleration beginning depth (D >=D when processor drops to1) when, (V=V is slowed down by setting rate1)；
2. when processor loading is decreased to given threshold (W≤WT) or torque increase to given threshold (T >=TT) when, bottom out number
Add 1；If be less than setting bottoms out times N, rises by the climbing speed that bottoms out of setting, reach and bottom out lifting height D2When, it opens
Beginning bottoms out again according to the fall off rate that bottoms out of setting；If having reached when bottoming out number of setting, record bottoms out end depth, visits
Bottom normal termination.
2. sea deep cement soil mixer ship processor as described in claim 1 bottoms out judgment method, which is characterized in that setting
It repeatedly bottoms out and confirms to bottoming out judgement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711035238.8A CN107859029B (en) | 2017-10-30 | 2017-10-30 | It is a kind of sea deep cement soil mixer ship processor bottom out judgment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711035238.8A CN107859029B (en) | 2017-10-30 | 2017-10-30 | It is a kind of sea deep cement soil mixer ship processor bottom out judgment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107859029A CN107859029A (en) | 2018-03-30 |
| CN107859029B true CN107859029B (en) | 2019-08-13 |
Family
ID=61697508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711035238.8A Active CN107859029B (en) | 2017-10-30 | 2017-10-30 | It is a kind of sea deep cement soil mixer ship processor bottom out judgment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107859029B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552343A (en) * | 2019-08-09 | 2019-12-10 | 中交天和机械设备制造有限公司 | Construction method of deep mixing ship |
| CN113358412A (en) * | 2021-06-03 | 2021-09-07 | 中电建生态环境集团有限公司 | River sludge sampling system |
| CN115540971B (en) * | 2022-10-08 | 2023-08-01 | 速度科技股份有限公司 | Geographic information data acquisition system based on voice recognition |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000144706A (en) * | 1998-11-06 | 2000-05-26 | Maruyama Kogyo Kk | Soft ground stabilization |
| CN105649641A (en) * | 2016-02-01 | 2016-06-08 | 中铁十六局集团北京轨道交通工程建设有限公司 | Axis control method for shield sharp curve construction in upper-soft-lower-hard stratum |
| CN106759251A (en) * | 2017-01-25 | 2017-05-31 | 中交天和机械设备制造有限公司 | A kind of deep-layer stirring ship processor |
-
2017
- 2017-10-30 CN CN201711035238.8A patent/CN107859029B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000144706A (en) * | 1998-11-06 | 2000-05-26 | Maruyama Kogyo Kk | Soft ground stabilization |
| CN105649641A (en) * | 2016-02-01 | 2016-06-08 | 中铁十六局集团北京轨道交通工程建设有限公司 | Axis control method for shield sharp curve construction in upper-soft-lower-hard stratum |
| CN106759251A (en) * | 2017-01-25 | 2017-05-31 | 中交天和机械设备制造有限公司 | A kind of deep-layer stirring ship processor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107859029A (en) | 2018-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107859029B (en) | It is a kind of sea deep cement soil mixer ship processor bottom out judgment method | |
| CN104929144A (en) | Deepwater suction type barrel-shaped foundation intermittent penetration equipment and installation method | |
| CN108612096A (en) | A kind of cement mixing method reinforces the construction method of spiral-digging pore | |
| CN207157437U (en) | A kind of deep-layer stirring ship autonomic balance system | |
| CN107150766A (en) | A kind of deep-layer stirring ship autonomic balance system and method | |
| CN115408886B (en) | Water lowering and draining system and method for controlling underground structure settlement through hydraulic engineering | |
| CN102966111A (en) | Construction method for anchoring steel pipe pile on steep bare rock without covering layer in deep water and rapids | |
| CN112227296A (en) | Rock breaking construction method for underwater deep foundation trench | |
| CN206573448U (en) | Infiltration test of testing pits automatically controls tape deck | |
| CN102966088B (en) | Discontinuous combined pile for reinforcing hard soil interlayer-containing soft soil foundation and construction method of discontinuous combined pile | |
| CN106197370A (en) | A kind of device and method of static level level measuring based on ultrasonic ranging principle | |
| CN105297712A (en) | Construction method for composite pile of auger-bored high-pressure-jetting cemented soil composite variable-cross-section concrete pile | |
| CN104632111B (en) | Device and method for transmitting downhole signal through using mud pulse under aerated drilling condition | |
| CN106480876A (en) | A kind of inclined hole steel pipe piles set into rock construction | |
| CN109722956A (en) | High-speed railway slip-casting lifting method and injecting paste material | |
| CN205554527U (en) | Semi -submerged formula construction platform | |
| JP2020516794A (en) | Foundation treatment method for staking a foundation structure by penetrating a hardbed layer | |
| CN106991228A (en) | The method to set up of gravity anchor horizontal bearing capacity | |
| CN115198783A (en) | Construction control method of partition chamber type diaphragm wall anchorage foundation | |
| CN114293579A (en) | Construction method for treating clay sealing wall by vacuum preloading foundation | |
| CN212582653U (en) | Processing structure of inside solution cavity of side slope | |
| CN103266618A (en) | Method for anchoring steel cofferdam and steel cofferdam structure | |
| CN107672768A (en) | A kind of apparatus for automatically lifting and method of detecting deep Hydrothermal plumes | |
| CN203960850U (en) | A kind of rich pigment fine sand stratum mobilism filling system | |
| CN108426624B (en) | Floating ball liquid level device for measuring concrete liquid level of cast-in-place pile foundation and using method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |