CN106121662B - Shield digging is locally backbreak, and dynamically control method is filled in compensation to region synchronous grouting - Google Patents
Shield digging is locally backbreak, and dynamically control method is filled in compensation to region synchronous grouting Download PDFInfo
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- CN106121662B CN106121662B CN201610297061.8A CN201610297061A CN106121662B CN 106121662 B CN106121662 B CN 106121662B CN 201610297061 A CN201610297061 A CN 201610297061A CN 106121662 B CN106121662 B CN 106121662B
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 17
- 238000010276 construction Methods 0.000 claims abstract description 34
- 238000012544 monitoring process Methods 0.000 claims abstract description 22
- 239000002689 soil Substances 0.000 claims description 62
- 238000007569 slipcasting Methods 0.000 claims description 17
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 238000004458 analytical method Methods 0.000 claims description 7
- 238000013461 design Methods 0.000 claims description 5
- 238000009412 basement excavation Methods 0.000 claims description 4
- 230000005641 tunneling Effects 0.000 claims description 4
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- 238000005520 cutting process Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/003—Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0607—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield being provided with devices for lining the tunnel, e.g. shuttering
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- Geology (AREA)
- Structural Engineering (AREA)
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- Lining And Supports For Tunnels (AREA)
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Abstract
It locally backbreaks the invention discloses a kind of shield digging the method for region synchronous grouting dynamic compensation filling control, including following two links：It backbreaks and prejudges link, slurry state modulator link；The construction area situation of backbreaking is qualitatively judged in anticipation link of backbreaking, passes information to grouting parameter controlling unit；Terms and conditions is combined in grouting parameter controlling unit, every construction parameter of grouting at the tail of the shield machine is adjusted to realize real time implementation, precision control.The present invention provides a kind of monitorings in real time, and adjustment is rapid, the relatively low grouting at the tail of the shield machine parameter regulation means of human cost, and ground settlement caused by effectively controlling shield operation reduces road pavement and the adverse effect of neighboring buildings.
Description
Technical field
The invention belongs to Geotechnical Engineering field, it is related to shield digging region synchronous grouting dynamic compensation of locally backbreaking and fills out
Fill control method.
Background technology
Shield method is a kind of Fully-mechanized construction method in shallow mining method.It is to promote Shield-type machinery in ground,
Surrounding country rock is supported by shield shell and section of jurisdiction and prevents caving in tunnel.Simultaneously with cutting dress in front of excavation face
Carry out soil excavation is put, by being unearthed, machinery is transported outside hole, by jack in rear pressurization jacking, and assembled precast concrete pipe
Piece forms a kind of mechanized construction method of tunnel structure.Shield machine is both a kind of construction equipment and a kind of strong faces
When support construction.A big steel pipe machine is seemed in shield machine shape, bigger compared with tunnel segment, it is to be designed to keep out extroversion
Hydraulic pressure and strata pressure.It includes three parts：Notch ring, the support ring at middle part and the shield tail at rear portion of forepart.It is most of
The shape of shield is circle, also there is the other forms such as ellipse, the semicircle, shape of a hoof and box-shaped.Although shield-tunneling construction is efficient just
Victory, but also bring new engineering problem simultaneously, as in subway work to the disturbance on stratum, to earth's surface building construction, asphalt road
The disturbance of the infrastructure such as face, Urban Buried Pipeline Network line, severe patient can cause the collapsing of Nearby Structure, city water power and traffic
Paralysis of system etc..It can be seen that the control of construction technology be ensure city normal operation deciding factor, quantitative analysis and
It is highly important to the affecting laws of ground settlement in the case of research shield technique change.Subway shield tunnel construction technique causes soil
The disturbance of body is mainly shown as：Shield is to caused by the extruding and loosening of the soil body, loading and unloading, pore water pressure rise and fall
Variation, surface uplift and sinking of soil nature etc..
Since the digging diameter of cutter head of shield machine is more than section of jurisdiction outer diameter, after pipe sheet assembling finishes and deviates from shield tail, with the soil body
Between formed an annular gap, abbreviation gap of the shield tail.If gap of the shield tail is filled not in time, stratum deformation is bound to cause,
Build adjacent earth's surface, structure sedimentation or tunnel deviate in itself.The most important purpose of grouting at the tail of the shield machine is exactly between timely filling shield tail
Gap prevents the presence because of gap of the shield tail from causing stratum that moderate finite deformation occurs, and improves the impermeability in tunnel；But grouting at the tail of the shield machine is finally imitated
Fruit is influenced by every construction parameter, lacks real-time in prior art grouting at the tail of the shield machine operation to the formulation of parameters, accuracy,
Construction effect is caused to be difficult to ensure that.
Invention content
The object of the present invention is to provide a kind of shield diggings locally to backbreak what region synchronous grouting dynamic compensation filling controlled
Method calculates the soil body amount of backbreaking, then targetedly adjust shield using shield driving Real-time Monitoring Data and relevant design data
Tail grouting parameter is accomplished real time implementation, precision control, is influenced caused by surrounding enviroment with reducing shield-tunneling construction.
In order to achieve the above objectives, the present invention adopts the following technical scheme that：
This method includes two sub- link systems：It backbreaks anticipation system, grouting parameter control system.By anticipation system of backbreaking
The construction area situation of backbreaking is qualitatively judged：Wherein preliminary survey mainly monitors number into soil amount using the screw conveyor amount of being unearthed
It is determined jointly according to struggle against outer haul volume volume of soil, theoretical is the unearthed amount being calculated according to shield scheme is designed into soil amount, two
The difference of person is the thick side amount of backbreaking, and the foundation for degree evaluation of backbreaking is relatively stringent in job specfication and this construction particular/special requirement
Person；Pressure monitoring data are obtained by the pressure sensor that four groups of pistons of shield head are had by oneself, positioning analysis Main Basiss phase of backbreaking
The pressure difference value of adjacent piston, if occur the corresponding pressure monitoring data of adjacent pistons at the same time segment difference value be more than limit value situation,
Then judgement using adjacent pistons as boundary in the range of the soil body backbreak in the construction process risk；With reference to the degree evaluation and super of backbreaking
Area's positioning analysis is dug as a result, forming decision information, and pass information to grouting parameter control system；Grouting parameter control system
With reference to terms and conditions, i.e.,：Formation parameter, estimates the amount of backbreaking, shield driving control parameter, basis of formation grouting at the tail of the shield machine parameter,
With reference to the decision information for anticipation system generation of backbreaking, every construction parameter of grouting at the tail of the shield machine is adjusted, and will be after adjustment
Grouting at the tail of the shield machine parameter inputs shield machine grouting at the tail of the shield machine control subsystem, realizes real time implementation, precision control.
For anticipation system of backbreaking, its step are as follows：The first step, with reference to driving soil layer self-characteristic and its in work progress
In deformation time, it is flowed filling section of jurisdiction and the soil body between gap situation evaluate；Second step is calculated using design data
Theory is measured into soil, preliminary to estimate degree of backbreaking with reference to unearthed amount related data, if it is determined that soil body flow causes gap to be filled,
The parameter adjustment backbreak under situation need not be then carried out, if it is determined that soil body arching is strong, gap still remains, then is walked into third；
Third walks, and region of backbreaking is positioned, and location information is passed to according to shield machine piston pressure sensor monitoring data
Grouting parameter control system.
For grouting parameter control system, its step are as follows：The first step is calculated by shield driving monitoring data and is dug
The soil body volume removed；Second step, input design soil excavation amount related data at this stage, if it is not in backbreak to judge, after
It is continuous to construct according to original shield parameter, if judging will appear backbreaks, walked into third；Third walks, with reference to passing through soil properties
Grouting at the tail of the shield machine parameter configuration is carried out, and implement grouting at the tail of the shield machine with shield driving monitoring parameters.
Furthermore, the major function for backbreaking anticipation system has two：Judgement, which is backbreak, whether there is, judge that part is super
Dig the orientation in region.Where it is determined that the method for presence or absence of backbreaking is only limitted to, soil property is harder, the strong stratum of arching ability, for becoming silted up
The strong soil body of the mobility such as shale weak soil does not apply to this determination method.
The preliminary survey amount of being unearthed is equal to the product that native bucket capacity product transports number with soil bucket in the anticipation system of backbreaking, this data only exists
Anticipation is not used in grouting parameter control system with the presence or absence of being used when backbreaking.
Positioning analysis in the anticipation system of backbreaking passes through using shield separator pressure sensor real time data as foundation
Identify that each Pressure Variation judges region of backbreaking, the judgement for pressure rapid decay occur is region of backbreaking.
In the grouting parameter control system, soil properties parameter includes：Soil layer wet density, soil body non-confining strength
Degree, native cohesive force, native internal friction angle etc.；Shield driving parameter includes：Buried depth, tunnel diameter, cutter diameter, amount of being unearthed,
Piston pressure, driving speed etc..
In the grouting parameter control system, foundation slip casting parameter includes：Grouting amount, grouting pressure, injection speed.Three
Numerical value can estimate the amount of backbreaking according to soil properties parameter, and shield driving parameter is calculated using correlation formula.Each group at this time
Injected hole pre-set parameter is consistent.
In the grouting parameter control system, area's slip casting dynamic aspect of backbreaking refers to：The positioning provided with reference to anticipation system
Information is adjusted the foundation slip casting parameter of two groups of injected holes nearest in regional extent of backbreaking, and reaches the mesh eliminated and backbreak
's.
The realization for area's slip casting dynamic aspect of backbreaking：System in this method and shield machine itself operation software platform are mutually tied
It closes, obtains related Real-time Monitoring Data from Suporting structure itself tunneling control system, the system that input this method refers to is sentenced
It is fixed to generate dynamic aspect with calculating, dynamic aspect is inputted into Suporting structure itself grouting at the tail of the shield machine system, corrects every slip casting in real time
Parameter.
When the soil body because secondary deformation or other reasons cause dynamic aspect to fail to control ground settlement or control accuracy not
Up to when requiring, secondary grouting can be carried out using section of jurisdiction injected hole.
For needing Real-time Monitoring Data, such as：It is unearthed and measures, piston pressure, driving speed etc., data acquiring frequency is：
1cm is often promoted to collect primary, the monitoring data in the range of one section section of jurisdiction of system storage, and corresponding grouting at the tail of the shield machine is calculated accordingly
Parameters, monitoring data will be stored with grouting at the tail of the shield machine parameter by project of section of jurisdiction.
Due to the adoption of the above technical scheme, the present invention has the following advantages and beneficial effect：
1) ground survey person works amount is reduced, accelerates shield job scheduling, improves integral construction efficiency；
2) situation of backbreaking to the soil body is monitored in real time, and system can make corresponding adjustment to grouting at the tail of the shield machine parameter automatically,
Reduce human error；
3) grouting at the tail of the shield machine parameter adjustment mode is relatively flexible, both provides system-computed parameter, has also allowed artificial correction, can be with
Cope with the situation of backbreaking of different situations；
4) influence of the shield-tunneling construction to surrounding enviroment is effectively reduced.
Description of the drawings
Fig. 1 is anticipation link (system) service chart of backbreaking of the present invention.
Fig. 2 is grouting parameter controlling unit (system) service chart of the present invention.
Fig. 3 is the grouting at the tail of the shield machine construction schematic cross-sectional view of the embodiment of the present invention.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings.
Fig. 1 is anticipation link (system) service chart of backbreaking.First by the way that theoretical amount of being unearthed is calculated, in conjunction with shield machine
Screw conveyor digs out soil body volume and soil bucket digs out volume and obtains the preliminary survey amount of being unearthed, and the difference between the two is the bigness scale amount of backbreaking, knot
Job specfication as unification and this Specific construction require to evaluate severity of backbreaking；Then pass through the pressure of shield piston
Sensor monitoring data are analyzed, and area orientation letter of backbreaking is obtained by section comparison while adjacent pistons pressure monitoring data
Breath；Finally comprehensive backbreak degree evaluation and positioning analysis result formation decision information, pass to grouting parameter control system.
Fig. 2 is grouting parameter controlling unit (system) service chart.The basic parameter needed for shield-tunneling construction is obtained first：Stratum
Characterisitic parameter, estimate the amount of backbreaking (need specified otherwise be herein estimate the amount of backbreaking be due to when shield curve excavates due to
The soil body caused by shield machine itself the turning radius limit is backbreak, and can be obtained by theoretical calculation, this is not repeated), shield driving control
Parameter processed；Then according to above-mentioned basic parameter basis of formation grouting at the tail of the shield machine parameter；Finally combine anticipation system formation of backbreaking
Decision information adjusts basic grouting at the tail of the shield machine parameter in real time, forms area's slip casting dynamic aspect of backbreaking.To ensure construction peace
Quan Xing, this system need to carry out manual review before final output parameter, are reaffirmed by construction personnel and provide modification parameter
Permission.
Fig. 3 is the construction schematic cross-sectional view of the embodiment of the present invention.The grouting at the tail of the shield machine form of tubes that this embodiment uses is 4
16 holes of group.By the cross-sectional view it is found that phenomenon of backbreaking between first group and the 4th group of injected hole, when proceeding by shield tail herein
During slip casting operation, control system of the invention starts：The amount of backbreaking and zone position information of backbreaking are obtained by anticipation system of backbreaking, and
Decision information is formed, is used for grouting parameter control system.After grouting parameter control system receives basic parameter information, shape first
Into basic grout injection control parameter.It is adjusted in conjunction with decision information, needs to increase injected hole 1 and injected hole in the present embodiment
4 grouting amount, due to the correlation of grouting parameter, the injection speed and pressure of injected hole 1 and injected hole 4 also need to adjust simultaneously.
Existing somewhere has metro shield section construction just in operation, by taking its right line assembly one saves section of jurisdiction as an example：
Known shield machine diameter 6.28m, section of jurisdiction outer diameter 6m, chip length 1.5m, shield driving speed 2cm/min.According to
Above-mentioned condition obtains grouting at the tail of the shield machine pressure, grouting amount, injection speed.Stratum is sandy soils, and arching is stronger, soil body parameters
It is known.Specifically comprise the following steps according to the present invention：
One) it backbreaks anticipation system
1. degree evaluation of backbreaking
Judge its mobility and arching according to soil properties, with reference to the soil deformation time in shield-tunneling construction, calculate
The volume V1 being filled into due to soil body flow in gap.By native bucket capacity product and transport the soil bucket number calculating full scale amount of being unearthed, knot
Rationally opinion can tentatively measure the amount of backbreaking V2 into soil amount, calculate the difference of V1 and V2.When V1 is less than V2, then it is assumed that exist and backbreak.
2. area's positioning analysis of backbreaking
Piston pressure monitoring data are analyzed, compares to find out two-by-two by each adjacent pistons pressure distribution of same period and backbreak
The general orientation in region records area's range of backbreaking in the form of coordinate information.
3. decision information
Degree evaluation and the area's positioning analysis achievement of backbreaking of backbreaking summarize, bright with reference to the Criterion restriction of this construction
True reparation degree of backbreaking forms the decision information of quantization grouting parameter variation, imports grouting parameter control system.
Two) grouting parameter computing system
1. grouting pressure calculates
Due to grouting pressure, to be related to factor more, affected by environment big, and soil layer actual distribution situation is difficult to true predictive, therefore
Grouting pressure is determined using following three step.
1.1 stratum cleavage fracture stress calculate (the grouting pressure upper limit)
The cleavage fracture stress P on the stratum is calculated according to soil propertiesf, when grouting pressure is more than cleavage fracture stress, slurries impact
Power can form crack in soil layer, flow to slurries uncontrollable, be difficult to calculate so as to cause its effective grouting amount, therefore to ensure note
The validity of operation is starched, grouting pressure should not exceed Pf。
Reservoir stress (grouting pressure lower limit) at 1.2 buried depths
The soil pressure P of soil layer according to where can calculating Tai Shaji formulae, when grouting pressure is less than soil pressure, can lead
Situations such as slurries is caused to be difficult to spray, block grouting port, to ensure that slip casting operation is normally carried out, grouting pressure is no less than Pe。
1.3 grouting pressure reference values determine
Theoretically slip casting pressure is slightly larger than stratum soil pressure and hydraulic pressure P0, to reach effectively filling rather than splitting to circumferential gap
Slip casting is split, can refer to Water And Earth Pressures under the premise of bound requirement is met determines grouting pressure：
P=(1.1~1.5) P0
The best grouting pressure ranging from 0.32Mpa~0.42Mpa that constructs, 0.4Mpa is taken in present case.
2. grouting amount calculates
The determining of grouting amount is fitted based on shield tail structure void amount and with reference to considerations such as stratum, circuit and tunneling methods
When repletion coefficient, with ensure achieve the purpose that filling it is closely knit.According to Construction practices, repletion coefficient here is included by slip casting pressure
Coefficient of compaction that power generates, construction consumption coefficient, by what tunneling method generated is backbreak and is at the soil property coefficient depending on geological condition
Number etc..When calculating grouting amount, the secondary filling of the soil body is considered, other materials is injected in construction such as fillings such as shield tail greases
Voidage is modified shield tail structure void amount.
The slip casting rate range general control of grouting at the tail of the shield machine is 120%~180%, therefore grouting amount ranging from 4.86~7.29 is vertical
Square rice/ring (ring axial length 1.5m), present case slip casting rate takes 150%, therefore grouting amount is 6.075 cubic metres/ring.
3. injection speed
Injection speed can be calculated according to shield driving speed and grouting amount with reference to volume relationship.Shield driving speed is general
For 2.5~5.5cm/min, this takes 3cm/min, it is known that a ring axial length is 1.5m, can calculate total injection speed and take 0.12
Cubic meter/min.
4. dynamic aspect is formed
The decision information for anticipation system of backbreaking is imported, to backbreaking, region positions, and Automatic-searching is attached to the region
Two groups of near grouting ports, i.e., injected hole 1 and injected hole 4 in following table, by 2:The additional grouting amount of 1 pro rate, and calculate because super
Digging amount and remaining parameter correction values changed, are finally completed the setting of four groups of grouting port parameters.Final four groups of injected holes exist
This ring range grouting at the tail of the shield machine parameter adjustment is：
| Number | Grouting pressure (Mpa) | Grouting amount (cubic meter/ring) | Injection speed (cubic meter/min) |
| Injected hole 1 | 0.44 | 1.65 | 0.033 |
| Injected hole 2 | 0.40 | 1.53 | 0.031 |
| Injected hole 3 | 0.40 | 1.53 | 0.031 |
| Injected hole 4 | 0.41 | 1.59 | 0.032 |
According to field measurement data, maximum settlement is -5.7mm after work in the range of the ring, less than control settlement range 10mm,
Grouting at the tail of the shield machine parameter is adjusted using the present invention, ground settlement problem caused by shield is backbreak is effectively controlled, reduces construction
Influence to surrounding enviroment.
The above-mentioned description to examples of implementation is understood that for the ease of those skilled in the art and using this
Invention.Person skilled in the art obviously can easily make these embodiments various modifications, and illustrating herein
General Principle be applied in other embodiment without having to go through creative labor.Therefore, the present invention is not limited to realities here
Example, those skilled in the art's announcement according to the present invention are applied, improvement and modification made without departing from the scope of the present invention all should
Within protection scope of the present invention.
Claims (12)
- A kind of method of region synchronous grouting dynamic compensation filling control 1. shield digging is locally backbreak, it is characterised in that：Including Following two links：It backbreaks and prejudges link, grouting parameter controlling unit；It backbreaks in anticipation link of backbreaking to construction area situation It is qualitatively judged, passes information to grouting parameter controlling unit；Terms and conditions is combined in grouting parameter controlling unit, it is right Every construction parameter of grouting at the tail of the shield machine is adjusted to realize real time implementation, precision control；The anticipation link of backbreaking includes the following steps：The first step, with reference to driving soil layer self-characteristic and its in the construction process Deformation time, it is flowed filling section of jurisdiction and the soil body between gap situation evaluate；Second step is calculated using design data and managed It is measured by into soil, it is preliminary to estimate degree of backbreaking with reference to unearthed amount related data；If it is determined that soil body flow causes gap to be filled, then It need not carry out the parameter adjustment backbreak under situation；If it is determined that soil body arching is strong, gap still remains, then is walked into third；The Three steps position region of backbreaking, and location information is passed to note according to shield machine piston pressure sensor monitoring data Starch state modulator link.
- The method of region synchronous grouting dynamic compensation filling control 2. shield digging according to claim 1 is locally backbreak, It is characterized in that：The grouting parameter controlling unit includes the following steps：The first step is calculated by shield driving monitoring data The soil body volume excavated；Second step, input design soil excavation amount related data at this stage, if it is not in backbreak to judge, Then continue to construct according to original shield parameter, if judging will appear backbreaks, be walked into third；Third walks, with reference to passing through soil layer Characteristic and shield driving monitoring parameters carry out grouting at the tail of the shield machine parameter configuration, and implement grouting at the tail of the shield machine.
- The method of region synchronous grouting dynamic compensation filling control 3. shield digging according to claim 1 is locally backbreak, It is characterized in that：It needs to realize in the anticipation link of backbreaking：Judgement, which is backbreak, whether there is, judges the side in local region of backbreaking Position；The backbreak method of presence or absence of the judgement is only limitted to the stratum that soil property is harder, arching ability is strong.
- The method of region synchronous grouting dynamic compensation filling control 4. shield digging according to claim 1 is locally backbreak, It is characterized in that：The preliminary survey amount of being unearthed is equal to the product that native bucket capacity product transports number with soil bucket, this data in the anticipation link of backbreaking Only used in anticipation with the presence or absence of when backbreaking.
- The method of region synchronous grouting dynamic compensation filling control 5. shield digging according to claim 1 is locally backbreak, It is characterized in that：It is described backbreak anticipation link in positioning analysis using shield separator pressure sensor real time data as foundation, It is region of backbreaking by the judgement for pressure rapid decay occur by identifying that each Pressure Variation judges region of backbreaking.
- The method of region synchronous grouting dynamic compensation filling control 6. shield digging according to claim 1 is locally backbreak, It is characterized in that：In the grouting parameter controlling unit, soil properties parameter includes：Soil layer wet density, the soil body is without lateral spacing resistance to compression Intensity, native cohesive force, native internal friction angle；Shield driving parameter includes：Buried depth, tunnel diameter, cutter diameter, amount of being unearthed, Piston pressure, driving speed.
- The method of region synchronous grouting dynamic compensation filling control 7. shield digging according to claim 6 is locally backbreak, It is characterized in that：For needing Real-time Monitoring Data, data acquiring frequency is：1cm is often promoted to collect primary, system storage one The monitoring data in the range of section of jurisdiction are saved, and calculate corresponding grouting at the tail of the shield machine parameters, monitoring data and grouting at the tail of the shield machine accordingly Parameter will be stored by project of section of jurisdiction.
- The method of region synchronous grouting dynamic compensation filling control 8. shield digging according to claim 7 is locally backbreak, It is characterized in that：It is described that Real-time Monitoring Data is needed to include：It is unearthed and measures, piston pressure, driving speed.
- The method of region synchronous grouting dynamic compensation filling control 9. shield digging according to claim 1 is locally backbreak, It is characterized in that：In the grouting parameter controlling unit, foundation slip casting parameter includes：Grouting amount, grouting pressure, injection speed； Three's numerical value according to soil properties parameter, estimate the amount of backbreaking, shield driving parameter is calculated using correlation formula, each group at this time Injected hole pre-set parameter is consistent.
- The method of region synchronous grouting dynamic compensation filling control 10. shield digging according to claim 1 is locally backbreak, It is characterized in that：In the grouting parameter controlling unit, area's slip casting dynamic aspect of backbreaking refers to：Determine with reference to what anticipation link provided Position information, is adjusted the foundation slip casting parameter of two groups of injected holes nearest in regional extent of backbreaking, and reaches and eliminates what is backbreak Purpose.
- The side of region synchronous grouting dynamic compensation filling control 11. shield digging according to claim 10 is locally backbreak Method, it is characterised in that：The realization for backbreaking area's slip casting dynamic aspect refers to：This method and shield machine itself operation software are put down Platform is combined, and related Real-time Monitoring Data is obtained from Suporting structure itself tunneling control system, input this method carry out judgement with Generation dynamic aspect is calculated, dynamic aspect is inputted into Suporting structure itself grouting at the tail of the shield machine system, corrects every grouting parameter in real time.
- The side of region synchronous grouting dynamic compensation filling control 12. shield digging according to claim 11 is locally backbreak Method, it is characterised in that：When the soil body because secondary deformation or other reasons cause dynamic aspect to fail to control ground settlement or control essence Up to when requiring, secondary grouting is not carried out using section of jurisdiction injected hole for exactness.
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| CN108691556B (en) * | 2017-04-05 | 2020-11-03 | 宏润建设集团股份有限公司 | Shield synchronous grouting and secondary grouting process |
| CN108022027B (en) * | 2018-02-06 | 2021-06-25 | 苏交科集团股份有限公司 | Prediction method for soil output when shield passes through surrounding rock contact zone |
| CN110793589B (en) * | 2019-11-19 | 2021-08-06 | 中铁一局集团有限公司 | Data analysis-based shield construction grouting consumption real-time calculation method |
| CN112380757B (en) * | 2020-12-14 | 2022-10-14 | 青岛理工大学 | Analysis method for offset distance of surface subsider peak point during construction of curved tunnel |
| CN113958343B (en) * | 2021-05-10 | 2024-04-02 | 南昌轨道交通集团有限公司 | Structure and method for restraining floating of segment of full-section stratum shield tunnel |
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