CN109268035A - For leaning on the real-time regulation system and method for segment deformation after controlling - Google Patents
For leaning on the real-time regulation system and method for segment deformation after controlling Download PDFInfo
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- CN109268035A CN109268035A CN201811004138.3A CN201811004138A CN109268035A CN 109268035 A CN109268035 A CN 109268035A CN 201811004138 A CN201811004138 A CN 201811004138A CN 109268035 A CN109268035 A CN 109268035A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D11/08—Lining with building materials with preformed concrete slabs
Abstract
The present invention relates to a kind of for leaning on the real-time regulating method of segment deformation after controlling, section of jurisdiction after described by section of jurisdiction to bear the effect of push pipe jacking counter-force in main tunnel, the real-time regulating method includes the following steps: divider wall of constructing in the soil body at section of jurisdiction after described, and the divider wall and the rear outer surface for leaning on section of jurisdiction is made to be enclosed a seal chamber, the soil body of the rear outer surface by section of jurisdiction is surrounded by the seal chamber；And during the push-bench tunneling construction, the rear deflection for leaning on section of jurisdiction described in real-time detection, and the injection rate of the non-hardening capacity slurries injected into the seal chamber is dynamically adjusted according to the deflection, the rear deformation for leaning on section of jurisdiction is controlled to realize.The present invention realizes the effect of real-time monitoring, solve the problems, such as in the prior art the only deformation extent of passive monitoring section of jurisdiction and without counter-measure, it is thus also avoided that the generation of overrun condition is deformed, so as to avoid additional the problem of increasing duration and cost.
Description
Technical field
The present invention relates to Tunnel Engineering fields, refer in particular to a kind of for leaning on real-time regulation system and the side of segment deformation after controlling
Method.
Background technique
With the fast development of Urban Underground Space Excavation, service channel is logical as the emergency for linking up two adjacent tunnels
Road, construction demand greatly improve, and compared to traditional shallow mining method, mechanical equipment method tunnel connection channel is in construction safety
Property, have biggish advantage in terms of completion time of project and cost.Tunnel connection channel push bench process is push-bench in molded main tunnel
A kind of mechanical execution method of not preparatory strengthening stratum is tunneled in road after cutting concrete pipe sheet.Push-bench tunnels forward required
Promote counter-force then finally by main tunnel structure and its outside soil body shared, push-bench per one tube coupling distance of jacking forward,
Jacking jack will bounce back, the rear jack jacking again in place of new tube coupling, repeatedly, main tunnel structure and its outside soil body
Frequent loading-unloading operating condition will be faced.For tunnel structure deformation main in control jack-in process, guarantee construction safety, before construction
Tunnel structure main at service channel would generally be carried out reinforcing or pre-reinforcement is carried out to the outside soil body.
Existing way often rests on passively the Deformation control of main tunnel structure during push pipe jacking construction
The degree of monitoring will not generally take additional control measure as long as deformation is no more than design requirement, and due to main tunnel structure and
Under the effect of loading-unloading operating condition, the resilience of the two is not consistent the behind soil body, can make section of jurisdiction and the behind soil body
It disengages, increases the load share ratio of section of jurisdiction, while " fatigue " effect of metalloid may also be generated, be unfavorable for tunnel structure
Deformation control and stress safety.If main tunnel deformation is more than design objective in jack-in process, service channel shut-down will lead to,
And multiple slip casting is carried out to the soil body after wall, duration and cost are added additional, mechanical equipment method tunnel connection channel is weakened
Advantage.
Summary of the invention
It is an object of the invention to overcome the deficiencies of existing technologies, a kind of real-time adjusting for after controlling by deforming is provided
System and method, solve not can solve in the prior art promote counter-force frequent plus unloading to tunnel duct piece deformation and stress not
Benefit influences, and deformation additionally increase when transfiniting duration and cost the problem of.
Realizing the technical solution of above-mentioned purpose is:
The present invention provides a kind of for leaning on the real-time regulating method of segment deformation after controlling, and it is main tunnel that section of jurisdiction is leaned on after described
The section of jurisdiction of push pipe jacking counter-force effect is born in road, the real-time regulating method includes the following steps:
Constructed after described in the soil body at section of jurisdiction divider wall, and make the divider wall and it is described after by the outer of section of jurisdiction
Surface is enclosed a seal chamber, and the soil body of the rear outer surface by section of jurisdiction is surrounded by the seal chamber；And
During the push-bench tunneling construction, the rear deflection for leaning on section of jurisdiction described in real-time detection, and according to described
Deflection dynamically adjusts the injection rate of the non-hardening capacity slurries injected into the seal chamber, leans on after control is described to realize
The deformation of section of jurisdiction.
The present invention provides a kind of methods adjusted in real time to lean on segment deformation after controlling, lean on the corresponding soil in section of jurisdiction prior to rear
Divider wall is constructed in body with formed one with lean on the corresponding seal chamber in section of jurisdiction afterwards, thus adjusted according to the rear deflection by section of jurisdiction to
The injection rate of the non-hardening capacity slurries of injection leans on the deformation of section of jurisdiction after controlling in seal chamber, realizes the effect of real-time monitoring, more
It has mended in the prior art, the rear deficiency prevented in advance by section of jurisdiction Deformation control weight with subsequent disposition, light mid-event control, after realizing
It is dynamically controlled in the thing of segment deformation.Solve in the prior art only the deformation extent of passive monitoring section of jurisdiction and without counter-measure
The problem of, it is thus also avoided that the generation of overrun condition is deformed, so as to avoid additional the problem of increasing duration and cost.
The present invention be used for control after by segment deformation real-time regulating method further improvement lies in that, construction divider wall,
Include:
Grouting Pipe is set from the reserved injected hole on the section of jurisdiction in the main tunnel, the Grouting Pipe is enabled to pass through corresponding section of jurisdiction
And it squeezes into the soil body on the outside of corresponding section of jurisdiction；
Inject hardening capacity slurries into the soil body by the Grouting Pipe to form the divider wall.
The present invention be used for control after by segment deformation real-time regulating method further improvement lies in that, construction divider wall
When, by with it is described after the divider wall that connect by section of jurisdiction be set to it is described after lean on the edge of section of jurisdiction, and rear lean on that section of jurisdiction is vertical to be connected with described
It connects.
The present invention be used for control after lean on segment deformation real-time regulating method further improvement lies in that, in the push-bench
Before tunneling construction, further includes:
Mud injection pipe is set from the reserved injected hole of the rear tube on piece, the mud injection pipe is enabled to squeeze into described
In seal chamber；
Two-way slush pump is connected in the end being located in the main tunnel on the mud injection pipe, by described two-way
Slush pump non-hardening capacity slurries can be injected into the seal chamber with increase it is described after lean on the pressure of section of jurisdiction outer surface, can also be from
The non-hardening capacity slurries injected are extracted in the seal chamber to reduce the rear pressure for leaning on section of jurisdiction outer surface, to realize
The injection rate of the dynamic non-hardening capacity slurries of adjustment and it is described after lean on the pressure of section of jurisdiction outer surface.
The present invention be used for control after lean on segment deformation real-time regulating method further improvement lies in that, described in real-time detection
The deflection of section of jurisdiction is leaned on afterwards, comprising:
Inner surface installation one after described by section of jurisdiction passes through the sensing for detecting the sensor of section of jurisdiction convergent deformation
The deflection of section of jurisdiction is leaned on after described in device real-time detection.
The present invention also provides a kind of for leaning on the real-time regulation system of segment deformation after controlling, and leans on based on section of jurisdiction after described
The section of jurisdiction of push pipe jacking counter-force effect is born in tunnel, the real-time regulation system includes:
Set on the rear intracorporal divider wall of soil at section of jurisdiction, the divider wall is enclosed with the rear outer surface by section of jurisdiction
It closes and forms a seal chamber, the soil body of the rear outer surface by section of jurisdiction is surrounded by the seal chamber；
It is installed on the detection unit of the rear tube on piece, for the rear deflection for leaning on section of jurisdiction described in real-time detection；And
The slip casting unit being all connected with the seal chamber and the detection unit, for dynamically being adjusted according to the deflection
The injection rate of the whole non-hardening capacity slurries injected into the seal chamber controls the rear deformation for leaning on section of jurisdiction to realize.
The present invention be used for control after by segment deformation real-time regulation system further improvement lies in that, with it is described afterwards tube
The divider wall of piece connection be set to it is described after by section of jurisdiction edge and with it is described after connect by section of jurisdiction is vertical.
The present invention be used for control after lean on segment deformation real-time regulation system further improvement lies in that, the slip casting unit
Mud injection pipe that reserved injected hole including the tube on piece after described is squeezed into the seal chamber is connect with the Grouting Pipe
Two-way slush pump and control module with the two-way slush pump control connection；
The control module is connect with the detection unit, and the control module can be double according to the deformation amount controlling
It is described afterwards by the pressure of section of jurisdiction outer surface to increase to inject non-hardening capacity slurries into the seal chamber to slush pump, can also root
The non-hardening capacity slurries injected are extracted out of described seal chamber according to two-way slush pump described in the deformation amount controlling to reduce
The pressure of section of jurisdiction outer surface is leaned on after stating, to lean on the deformation of section of jurisdiction after realizing dynamic adjustment.
The present invention be used for control after lean on segment deformation real-time regulation system further improvement lies in that, the slip casting unit
It further include the pressure sensor being installed on the mud injection pipe, the pressure sensor is connect with the control module, is used
The pressure initiation reference pressure data of section of jurisdiction outer surface are leaned on after described in real-time detection, and by reference pressure data detected
It is sent to the control module.
The present invention be used for control after lean on segment deformation real-time regulation system further improvement lies in that, the detection unit
Sensor including being installed on the rear inner surface for leaning on section of jurisdiction and for detecting section of jurisdiction convergent deformation, passes through the sensor
The deflection of section of jurisdiction is leaned on after described in real-time detection.
Detailed description of the invention
Fig. 1 is main tunnel, service channel in real-time regulation system and method for the present invention for leaning on segment deformation after controlling
And the longitudinal sectional view of divider wall.
Fig. 2 is main tunnel, service channel in real-time regulation system and method for the present invention for leaning on segment deformation after controlling
And the transverse sectional view of divider wall.
Fig. 3 is the flow chart of real-time regulating method of the present invention for leaning on segment deformation after controlling.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples.
Refering to fig. 1, the present invention provides a kind of for leaning on the real-time regulation system and method for segment deformation, application after controlling
At the section of jurisdiction for supporting push-bench when construction by pipeline jacking method tunnel connection channel, since the push-bench in construction by pipeline jacking method can be leaned on to after
Section of jurisdiction frequently loads-unloads, and push-bench must impact the overburden potential that section of jurisdiction additionally applies to section of jurisdiction, reality of the invention
When regulating system and method can be regulated and controled in real time, by section of jurisdiction appearance after being adjusted in real time according to the rear deflection by section of jurisdiction
The active force in face is achieved the purpose that after control with leaning on the deformation of section of jurisdiction after reducing to the greatest extent by segment deformation.It is right with reference to the accompanying drawing
The present invention leans on the real-time regulation system of segment deformation and method to be illustrated after being used to control.
Refering to fig. 1, it is shown that the present invention be used for control after lean on segment deformation real-time regulation system and method in main tunnel,
The longitudinal sectional view of service channel and divider wall.Below with reference to Fig. 1, to the present invention for leaning on the real-time of segment deformation after controlling
Regulating system and method are illustrated.
As shown in Figure 1, the real-time regulation system for after control by segment deformation of the invention leans on section of jurisdiction 111 after being applied to
Locate, the rear section of jurisdiction for leaning on section of jurisdiction 111 as support push-bench 31 on main tunnel 11, i.e., bears push pipe jacking counter-force work in main tunnel 11
Section of jurisdiction, push-bench 31 is used for the tunneling construction service channel 12 between two main tunnels 11, on the section of jurisdiction in main tunnel 11
The machinable part 112 of setting at the position of corresponding service channel 12 to be onstructed, the jacking jack of push-bench 31 pass through one
Rear back frame with connect afterwards by section of jurisdiction 111, by the advance of jacking jack pushing tow push-bench 31, cut machinable part 112 and
Tunneling construction service channel 12, when jacking and the retraction of jacking jack, the rear soil body meeting by section of jurisdiction 111 and its outside
By loading-unloading operating condition.Main tunnel 11 and service channel 12 to be formed are placed in underground, i.e., are embedded in the soil body 10,
It is non-reinforced structure in the soil body of main tunnel 11 and 12 periphery of service channel to be formed, the soil body is to main tunnel 11 and to be formed
The outer surface of service channel 12 can apply certain Water And Earth Pressures, which acts on the appearance of the section of jurisdiction in main tunnel 11
Face, thus the rear main stress at the section of jurisdiction 111 include Water And Earth Pressures outside tunnel, push-bench driving generated reaction force and
The restraining force of adjacent section of jurisdiction, when this it is rear by the discontinuity equalization of section of jurisdiction 111 when, easily deform.The present invention proposes to adjust in real time
Section system leans on frequent loading-unloading operating condition of the section of jurisdiction 111 during 31 tunneling construction of push-bench after being directed to, after controlling
Deformation by section of jurisdiction 111.
The real-time regulation system includes divider wall 21, detection unit and slip casting unit, as shown in connection with fig. 2, divider wall 21
After being set in the soil body 10 at section of jurisdiction 111, divider wall 21 and the rear outer surface by section of jurisdiction 111 are enclosed a seal chamber 22,
The soil body 10 of the outer surface of section of jurisdiction 111 is leaned on after surrounding by the seal chamber 22.Detection unit is leaned on section of jurisdiction 111 after being mounted on,
It, can also for leaning on the horizontal direction displacement of section of jurisdiction 111 after leaning on the deflection of section of jurisdiction 111, the deflection that can be after real-time detection
To lean on the convergent deformation amount of section of jurisdiction 111 after being, the deformation of section of jurisdiction 111 is leaned on after can detecting in real time by detection unit.Note
Slurry unit is connect with seal chamber 22 and detection unit, and slip casting unit obtains the rear deflection by section of jurisdiction 111 of detection unit detection,
And the injection rate of the non-hardening capacity slurries injected into seal chamber 22 is dynamically adjusted according to deflection, to be leaned on after realizing control
The deformation of section of jurisdiction 111.Slip casting unit is connect with seal chamber 22, for injecting non-hardening capacity slurries into seal chamber 22, is injected
Non- hardening capacity slurries limited by the sealing of divider wall 21, and be filled in seal chamber 22, and non-hardening capacity slurries are flowing
Property slurries, will not solidify, the outer surface to rear by section of jurisdiction 111 applies the soil body in the non-hardening capacity slurries and seal chamber 22 together
Active force, thus slip casting unit is realized after dynamically adjusting by the injection rate of the non-hardening capacity slurries of dynamic adjustment injection
Active force by the outer surface of section of jurisdiction 111 deforms after having achieved the effect that control by section of jurisdiction 111.
Preferably, bentonite slurry can be used in non-hardening capacity slurries, it can also be using a gram mud effect.
As a better embodiment of the invention, as depicted in figs. 1 and 2, with the rear divider wall 21 being connect by section of jurisdiction 111
After being set to by section of jurisdiction 11 edge and connect with rear by section of jurisdiction 111 is vertical.To which divider wall 21 is enclosed with rear by section of jurisdiction 111
Seal chamber 22 can be completely corresponding to after lean on section of jurisdiction 111 outer surface so that injection seal chamber 22 in non-hardening capacity slurries
It can directly generate and correspond to (generated reaction force effect when 31 jacking of push-bench of counter-force active region after acting on section of jurisdiction 111
Range) active force, namely after acting on the entire outer surface of section of jurisdiction 111.
Rear part namely counter-force effect by section of jurisdiction 111 to correspond to push-bench 31 on the section of jurisdiction in main tunnel 11 of the invention
Section of jurisdiction 111 is leaned on after being in section of jurisdiction part at area.When constructing divider wall 21, can construct four along the rear surrounding by section of jurisdiction 111
Side wall of the sequentially connected divider wall 21 as seal chamber 22 is then constructed on seal chamber 22 and facing by section of jurisdiction 111 afterwards
Divider wall 21, the divider wall 21 and remaining four divider wall 21 are tightly connected, to be enclosed together with rear by section of jurisdiction 111
Seal chamber 22, and seal chamber 22 leans on the outer surface of section of jurisdiction 111 corresponding with rear, so that the non-hardening capacity slurry in injection seal chamber 22
Liquid can be generated directly act on after lean on 111 outer surface of section of jurisdiction active force.
Further, reserved injected hole is equipped on the section of jurisdiction in main tunnel 11, the present invention reserves injected hole using this and applies
Work divider wall 21.Grouting Pipe is squeezed into according to reserved injected hole of the boundary of works area of divider wall 21 on section of jurisdiction, by the note of Grouting Pipe
Slurry mouth is extend at the design position of divider wall 21, and then the pressure injection hardening capacity slurries into Grouting Pipe, and the hardening capacity slurries are solidifying
The divider wall 21 with some strength and water proof is formd after Gu in the soil body 10, divider wall 21 is continuous wall body structure,
The outside of section of jurisdiction 111 is leaned on after being located in, and is connect with the rear edge seal by section of jurisdiction 111, so as to form seal chamber 22.
Preferably, cement slurry can be used in hardening capacity slurries, cement mortar can also be used.
As another better embodiment of the invention, as shown in Figure 1, slip casting unit includes leaning on section of jurisdiction 111 from rear
Mud injection pipe 23 that reserved injected hole is squeezed into seal chamber 22, the two-way slush pump being connect with the mud injection pipe 23 and with
The control module of the two-way slush pump control connection；Two-way slush pump therein can be to 22 internal pressure injection slurry of seal chamber, can also be from
Slurries are extracted in seal chamber 22.Control module is connect with detection unit, which can be according to detection unit real-time detection
Deflection carrys out the operation of the two-way slush pump of real-time control, and two-way slush pump can control to inject non-hardening capacity slurries into seal chamber 22
With increase after lean on 111 outer surface of section of jurisdiction pressure, also can control two-way slush pump extracted out of seal chamber 22 injected it is non-
Hardening capacity slurries with after reducing by section of jurisdiction 111 outer surface pressure, dynamically adjust non-hardening capacity slurries to realize
Injection rate.
Deflection after detection unit detects by section of jurisdiction 111 is to deform outward, namely lean on section of jurisdiction 111 afterwards
The stress of inner surface be greater than the stress of outer surface, at this time control module control two-way slush pump injected into seal chamber 22 it is non-can
Rigid slurries, to lean on the pressure of the outer surface of section of jurisdiction 111 after increase, thus by the deformation of section of jurisdiction and tunnel after reducing.It is non-can be hard
The injection rate of property slurries can gradually increase, referring concurrently to the deflection of real-time detection, until the deflection goes to zero or tends to connect
When by the range of, the injection of non-hardening capacity slurries can be stopped.The change of section of jurisdiction 111 is leaned on after detection unit detects
Shape amount is to deform inwardly, namely the stress by the outer surface of section of jurisdiction 111 is greater than the stress of inner surface, at this time control module control afterwards
It makes two-way slush pump and extracts non-hardening capacity slurries from seal chamber 22, to lean on the pressure of the outer surface of section of jurisdiction 111 after reduction, thus
By the deformation of section of jurisdiction and tunnel after reduction.During extracting non-hardening capacity slurries, referring concurrently to the deflection of real-time detection,
When going to zero or tend in acceptable range to the deflection, the extraction of non-hardening capacity slurries can be stopped.The present invention realizes
It is dynamic to adjust control, it can timely and effectively control the deformation of tunnel and section of jurisdiction.
Preferably, the mud injection pipe 23 in every endless tube on piece connects an individual two-way slush pump, using individually setting
The two-way slush pump set controls the grouting amount of the mud injection pipe 23 of the section of jurisdiction of corresponding ring.The slip casting of every endless tube piece can be corresponded in this way
Amount is individually controlled, and realizes the accuracy controlling of deformation.
Further, pressure sensing is connected in turn at the inner surface of section of jurisdiction 111 close to rear on mud injection pipe 23
Device and valve, pressure sensor for detecting pressure, detected by pressure be after suffered by outer surface by section of jurisdiction 111
Pressure, the pressure sensor are connect with the control module of slip casting unit, are provided reference data for the control of control module, are controlled mould
Block can refer to pressure detected by pressure sensor when dynamically adjusting the injection rate of non-hardening capacity slurries, i.e., after lean on section of jurisdiction
The pressure of 111 outer surfaces.Be provided with pressure limit within the control module, when pressure sensor detection pressure value be greater than etc.
When the pressure limit, control module stops the injection of non-hardening capacity slurries and warning note site operation personnel are handled,
So as to improve operation safety, avoids the amount of the non-hardening capacity slurries in indentation sealing chamber 22 excessive, and made to rear by section of jurisdiction
At destruction.
As another better embodiment of the invention, detection unit include after being mounted on by section of jurisdiction 111 inner surface and
For detecting the sensor of section of jurisdiction convergent deformation, by the deflection for leaning on section of jurisdiction 111 after the sensor real-time detection.The sensor
It is connect with the control module of slip casting unit, the information of real-time detection is sent to control module.
The control module can be the control computer being arranged in main tunnel 11, and control computer is restrained according to section of jurisdiction to be become
The data feedback of pressure sensor at shape sensor and mud injection pipe 23, the unlatching and closure of real-time control slush pump are adjusted
Whole 22 mud injection rate of seal chamber leans on the stress condition of section of jurisdiction outer surface after adjustment, guarantee push-bench jacking stage tunnel structure
The stabilization of deformation.
As another better embodiment of the invention, mud is provided at section of jurisdiction 111 close to rear in main tunnel 11
Storage bin, the Slurry Storage case are connect with two-way slush pump, and for storing non-hardening capacity slurries, two-way slush pump is by Slurry Storage
Non- hardening capacity slurries in case are collected out and in pressure injections to seal chamber 22, and two-way slush pump can also can by non-in seal chamber 22
Rigid slurries are extracted out and are sent in Slurry Storage case and stored.
The principle of real-time regulation system of the invention is illustrated below: the original that tunnel structure deformation is cut with seam bolt
Because being the imbalance of the surfaces externally and internally stress of section of jurisdiction.It is rear to receive the effect of jacking counter-force by section of jurisdiction in push-bench work progress, it should
The main stress by section of jurisdiction includes the restraining force of jacking counter-force, tunnel outer Water And Earth Pressures and the section of jurisdiction that is connected, the pact of connected section of jurisdiction afterwards
Beam force is for the pressure difference inside and outside balance tunnel.In counter-force loading-unloading, real-time regulation system dynamic adjustment sealing of the invention
Chamber mud injection rate, adjustment outside Water And Earth Pressures tend to balance each other with jacking counter-force in tunnel, reduce connected section of jurisdiction constraint to the greatest extent
Power and tunnel deformation.
After the completion of construction by pipeline jacking method, using the non-hardening capacity slurries in hardening capacity slurries replacement seal chamber 22, so that close
Envelope chamber 22 is considered as the ruggedized construction with some strength and waterproof, then blocks the reserved injected hole of section of jurisdiction, removes related facility.
Real-time regulation system of the invention can adjust in real time counter-force and make use in Mechanical Method service channel jack-in process
The active force of tunnel outer surface effectively controls counter-force and unloading is added to act on lower tunnel structure internal force, slows down " fatigue " effect, reduce tunnel
Road malformation；After avoiding tunnel deformation from transfiniting, service channel is stopped work, and secondary grouting bring duration and cost increase on the outside of section of jurisdiction
Add.
It is illustrated below to provided by the present invention for the real-time regulating method after control by segment deformation.
The present invention provides a kind of for leaning on the real-time regulating method of segment deformation after controlling, and is afterwards on main tunnel by section of jurisdiction
The section of jurisdiction of push-bench is supported, real-time regulating method includes the following steps:
As shown in figure 3, executing step S101, a sealing is enclosed by section of jurisdiction in divider wall of constructing in the soil body, and with rear
Chamber；Referring to figs. 1 and 2, in divider wall 21 of constructing in the rear soil body 10 by section of jurisdiction 111, and make divider wall 21 with after
It is enclosed a seal chamber 22 by the outer surface of section of jurisdiction 111, the soil of the outer surface of section of jurisdiction 111 is leaned on after surrounding by seal chamber 22
Body；Then step S102 is executed；
It executes step S102, in push-bench construction, is dynamically adjusted in real time to close according to the rear deflection by section of jurisdiction of detection
The injection rate of the non-hardening capacity slurries of intracavitary injection is sealed to lean on the deformation of section of jurisdiction after controlling.In the process of 31 tunneling construction of push-bench
In, the deflection of section of jurisdiction 111 is leaned on after real-time detection, and inject into seal chamber 22 non-is dynamically adjusted according to deflection can be hard
Property slurries injection rate, thus realize control after lean on section of jurisdiction 111 deformation.
Real-time regulating method of the invention main tunnel when being used for using service channel 12 between the main tunnel 11 of construction by pipeline jacking method
The Deformation control of the section of jurisdiction (rear to lean on section of jurisdiction 111) supported on 11 sections of jurisdiction as push-bench 31, push-bench 31 pass through rear back frame and master
Corresponding section of jurisdiction connection on tunnel 11, the rear back frame can apply counter-force to the section of jurisdiction of connection during 31 jacking of push-bench,
Section of jurisdiction 111 is leaned on after being in the section of jurisdiction of the counter-force active region.Adjusting method of the invention is applied in the rear outside soil body 10 by section of jurisdiction
The corresponding divider wall of work is enclosed a seal chamber using divider wall and the rear outer surface by section of jurisdiction, then by control to
In seal chamber the injection rate of the non-hardening capacity slurries of injection come after adjusting by section of jurisdiction outer surface pressure, thus tube after controllable
The deformation of piece.Solve the problems, such as in the prior art only the deformation extent of passive monitoring section of jurisdiction and without counter-measure, it is thus also avoided that
The generation of overrun condition is deformed, so as to avoid additional the problem of increasing duration and cost.
As a better embodiment of the invention, the step of construction divider wall in the real-time regulating method, includes:
As depicted in figs. 1 and 2, Grouting Pipe is set from the reserved injected hole on the section of jurisdiction in main tunnel 11, Grouting Pipe is enabled to pass through
Corresponding section of jurisdiction and squeeze into the soil body 10 on the outside of corresponding section of jurisdiction；Preferably, Grouting Pipe sets position according to divider wall
Setting range determine；
Inject hardening capacity slurries into the soil body 10 by Grouting Pipe to form divider wall 21.Being formed by divider wall is tool
There are certain intensity, waterproof and continuous wall.
Preferably, cement slurry can be used in hardening capacity slurries, cement mortar can also be used.
Further, when constructing divider wall 21, by section of jurisdiction after being set to the rear divider wall 21 being connect by section of jurisdiction 111
111 edge, and connect with rear by section of jurisdiction 111 is vertical.To divider wall 21 and the rear seal chamber 22 being enclosed by section of jurisdiction 111
The outer surface that section of jurisdiction 111 is leaned on after capable of being completely corresponding to enables the non-hardening capacity slurries in injection seal chamber 22 directly to produce
Life corresponds to the effect of counter-force active region (range that generated reaction force acts on when 31 jacking of push-bench) on section of jurisdiction 111 after acting on
Power, namely leaned on the entire outer surface of section of jurisdiction 111 after acting on.
As another better embodiment of the invention, before 31 tunneling construction of push-bench, further includes:
Mud injection pipe 23 is set from the rear reserved injected hole on section of jurisdiction 111, mud injection pipe 23 is enabled to squeeze into sealing
In chamber 22；
Two-way slush pump is connected in the end being located in main tunnel 11 on mud injection pipe 23, it can by two-way slush pump
Inject non-hardening capacity slurries into seal chamber 22 to lean on the pressure of 111 outer surface of section of jurisdiction after increasing, it can also be out of seal chamber 22
The non-hardening capacity slurries that are injected are extracted to lean on the pressure of 111 outer surface of section of jurisdiction after reducing, to realize dynamic adjustment
The injection rate of non-hardening capacity slurries.
When the after deflection by section of jurisdiction 111 detected is outward to deform, namely the rear inner surface for leaning on section of jurisdiction 111
Stress be greater than outer surface stress, two-way slush pump injects non-hardening capacity slurries into seal chamber 22 at this time, with increase after lean on
The pressure of the outer surface of section of jurisdiction 111, thus by the deformation of section of jurisdiction and tunnel after reducing.The injection rate of non-hardening capacity slurries can be gradually
Increase, referring concurrently to the deflection of real-time detection, until can stop when the deflection is gone to zero or tended in acceptable range
The injection of non-hardening capacity slurries.When the after deflection by section of jurisdiction 111 detected is inwardly to deform, namely lean on section of jurisdiction afterwards
The stress of 111 outer surface is greater than the stress of inner surface, and two-way slush pump extracts non-hardening capacity slurries from seal chamber 22 at this time,
To lean on the pressure of the outer surface of section of jurisdiction 111 after reduction, thus by the deformation of section of jurisdiction and tunnel after reducing.Extracting non-hardening capacity slurry
During liquid, referring concurrently to the deflection of real-time detection, until when the deflection is gone to zero or tended in acceptable range, it can
Stop the extraction of non-hardening capacity slurries.The present invention realizes dynamic adjust and controls, and can timely and effectively control tunnel and pipe
The deformation of piece.
Preferably, the mud injection pipe 23 in every endless tube on piece connects an individual two-way slush pump, using individually setting
The two-way slush pump set controls the grouting amount of the mud injection pipe 23 of the section of jurisdiction of corresponding ring.The slip casting of every endless tube piece can be corresponded in this way
Amount is individually controlled, and realizes the accuracy controlling of deformation.
As another better embodiment of the invention, the deflection of section of jurisdiction is leaned on after real-time detection, comprising:
In the rear inner surface installation one by section of jurisdiction 111 for detecting the sensor of section of jurisdiction convergent deformation, pass through sensor reality
When detection after lean on section of jurisdiction deflection.
Further, it is one control computer of two-way slush pump control connection, by control computer and is used to detect section of jurisdiction
The sensor of convergent deformation connects, and the deflection of section of jurisdiction is leaned on after real-time reception, and control computer is sensed according to section of jurisdiction convergent deformation
The data feedback of device, the unlatching and closure of real-time control slush pump adjust 22 mud injection rate of seal chamber, after adjustment outside section of jurisdiction
The stress condition on surface guarantees the stabilization of push-bench jacking stage tunnel structure deformation.
Further, pressure sensing is connected in turn at the inner surface of section of jurisdiction 111 close to rear on mud injection pipe 23
Device and valve, pressure sensor for detecting pressure, detected by pressure be after suffered by outer surface by section of jurisdiction 111
Pressure, the pressure sensor are connect with control computer, provide reference data to control the control of computer, control computer exists
Dynamic can refer to pressure detected by pressure sensor when adjusting the injection rate of non-hardening capacity slurries, i.e., after outside section of jurisdiction 111
Pressure at surface.It is provided with pressure limit within the control module, is somebody's turn to do when the pressure value of pressure sensor detection is more than or equal to
When pressure limit, control module stops the injection of non-hardening capacity slurries and warning note site operation personnel are handled, thus
It can be improved operation safety, avoid the amount of the non-hardening capacity slurries in indentation sealing chamber 22 excessive, and caused brokenly to rear by section of jurisdiction
It is bad.
As another better embodiment of the invention, mud is provided at section of jurisdiction 111 close to rear in main tunnel 11
Storage bin, the Slurry Storage case are connect with two-way slush pump, and for storing non-hardening capacity slurries, two-way slush pump is by Slurry Storage
Non- hardening capacity slurries in case are collected out and in pressure injections to seal chamber 22, and two-way slush pump can also can by non-in seal chamber 22
Rigid slurries are extracted out and are sent in Slurry Storage case and stored.
After the completion of construction by pipeline jacking method, using the non-hardening capacity slurries in hardening capacity slurries replacement seal chamber 22, so that close
Envelope chamber 22 is considered as the ruggedized construction with some strength and waterproof, then blocks the reserved injected hole of section of jurisdiction, removes related facility.
The present invention has been described in detail with reference to the accompanying drawings, those skilled in the art can be according to upper
It states and bright many variations example is made to the present invention.Thus, certain details in embodiment should not constitute limitation of the invention, this
Invention will be using the range that the appended claims define as protection scope of the present invention.
Claims (10)
1. a kind of for leaning on the real-time regulating method of segment deformation after controlling, it is that push pipe top is born in main tunnel that section of jurisdiction is leaned on after described
The section of jurisdiction acted on into counter-force, which is characterized in that the real-time regulating method includes the following steps:
In divider wall of constructing in the rear soil body by section of jurisdiction, and make the divider wall and the rear outer surface for leaning on section of jurisdiction
It is enclosed a seal chamber, the soil body of the rear outer surface by section of jurisdiction is surrounded by the seal chamber；And
During the push-bench tunneling construction, the rear deflection for leaning on section of jurisdiction described in real-time detection, and according to the deformation
Amount dynamically adjusts the injection rate of the non-hardening capacity slurries injected into the seal chamber, leans on section of jurisdiction after control is described to realize
Deformation.
2. as described in claim 1 for leaning on the real-time regulating method of segment deformation after controlling, which is characterized in that construction isolation
Wall, comprising:
Grouting Pipe is set from the reserved injected hole on the section of jurisdiction in the main tunnel, the Grouting Pipe is enabled to pass through corresponding section of jurisdiction and beat
Enter to the soil body on the outside of corresponding section of jurisdiction；
Inject hardening capacity slurries into the soil body by the Grouting Pipe to form the divider wall.
3. as claimed in claim 1 or 2 for leaning on the real-time regulating method of segment deformation after controlling, which is characterized in that construction
When divider wall, by with it is described after the divider wall that connect by section of jurisdiction be set to it is described after lean on the edge of section of jurisdiction, and with it is described rear by section of jurisdiction
Vertical connection.
4. as described in claim 1 for leaning on the real-time regulating method of segment deformation after controlling, which is characterized in that on the top
Before pipe machine tunneling construction, further includes:
Mud injection pipe is set from the reserved injected hole of the rear tube on piece, the mud injection pipe is enabled to squeeze into the sealing
It is intracavitary；
Two-way slush pump is connected in the end being located in the main tunnel on the mud injection pipe, passes through the two-way mud
Pump non-hardening capacity slurries can be injected into the seal chamber with increase it is described after lean on the pressure of section of jurisdiction outer surface, can also be from described
The non-hardening capacity slurries injected are extracted in seal chamber to reduce the rear pressure for leaning on section of jurisdiction outer surface, to realize dynamic
The injection rate of the non-hardening capacity slurries of adjustment of state and the rear pressure for leaning on section of jurisdiction outer surface.
5. as described in claim 1 for leaning on the real-time regulating method of segment deformation after controlling, which is characterized in that real-time detection
The deflection of section of jurisdiction is leaned on after described, comprising:
Inner surface installation one after described by section of jurisdiction is real by the sensor for detecting the sensor of section of jurisdiction convergent deformation
When detect it is described after lean on section of jurisdiction deflection.
6. a kind of for leaning on the real-time regulation system of segment deformation after controlling, it is that push pipe top is born in main tunnel that section of jurisdiction is leaned on after described
The section of jurisdiction acted on into counter-force, which is characterized in that the real-time regulation system includes:
Set on the rear intracorporal divider wall of soil at section of jurisdiction, the divider wall and the rear outer surface for leaning on section of jurisdiction enclose shape
At a seal chamber, the soil body of the rear outer surface by section of jurisdiction is surrounded by the seal chamber；
It is installed on the detection unit of the rear tube on piece, for the rear deflection for leaning on section of jurisdiction described in real-time detection；And
The slip casting unit being all connected with the seal chamber and the detection unit, for according to the deflection dynamically adjust to
The injection rate of the non-hardening capacity slurries injected in the seal chamber controls the rear deformation for leaning on section of jurisdiction to realize.
7. as claimed in claim 6 for leaning on the real-time regulation system of segment deformation after controlling, which is characterized in that after described
By section of jurisdiction connection the divider wall be set to it is described after by section of jurisdiction edge and with it is described after connect by section of jurisdiction is vertical.
8. as claimed in claim 6 for leaning on the real-time regulation system of segment deformation after controlling, which is characterized in that the slip casting
Unit includes mud injection pipe and the Grouting Pipe squeezed into the seal chamber from the reserved injected hole of the rear tube on piece
The two-way slush pump of connection and the control module connected with the two-way slush pump control；
The control module is connect with the detection unit, the control module two-way mud according to the deformation amount controlling
It is described afterwards by the pressure of section of jurisdiction outer surface to increase that stock pump injects non-hardening capacity slurries into the seal chamber, can also be according to institute
State two-way slush pump described in deformation amount controlling the non-hardening capacity slurries that are injected are extracted out of described seal chamber with reduce it is described after
By the pressure of section of jurisdiction outer surface, to lean on the deformation of section of jurisdiction after realizing dynamic adjustment.
9. as claimed in claim 8 for leaning on the real-time regulation system of segment deformation after controlling, which is characterized in that the slip casting
Unit further includes the pressure sensor being installed on the mud injection pipe, and the pressure sensor and the control module connect
It connects, for the rear pressure initiation reference pressure data for leaning on section of jurisdiction outer surface described in real-time detection, and by detected with reference to pressure
Force data is sent to the control module.
10. as claimed in claim 6 for leaning on the real-time regulation system of segment deformation after controlling, which is characterized in that the inspection
Surveying unit includes being installed on the rear inner surface for leaning on section of jurisdiction and the sensor for detecting section of jurisdiction convergent deformation, by described
The deflection of section of jurisdiction is leaned on after described in sensor real-time detection.
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| CN201811004138.3A CN109268035B (en) | 2018-08-30 | 2018-08-30 | Real-time adjusting system and method for controlling deformation of back-rest duct piece |
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| CN201811004138.3A CN109268035B (en) | 2018-08-30 | 2018-08-30 | Real-time adjusting system and method for controlling deformation of back-rest duct piece |
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| CN109268035B CN109268035B (en) | 2020-05-05 |
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| CN109268035B (en) | 2020-05-05 |
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