CN102052079B - Method for exchanging tool of shield machine for tunnel construction - Google Patents
Method for exchanging tool of shield machine for tunnel construction Download PDFInfo
- Publication number
- CN102052079B CN102052079B CN 201010554969 CN201010554969A CN102052079B CN 102052079 B CN102052079 B CN 102052079B CN 201010554969 CN201010554969 CN 201010554969 CN 201010554969 A CN201010554969 A CN 201010554969A CN 102052079 B CN102052079 B CN 102052079B
- Authority
- CN
- China
- Prior art keywords
- shield machine
- cang
- machine
- grouting
- cement
- 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
Images
Landscapes
- Lining And Supports For Tunnels (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a method for exchanging a tool of a shield machine for tunnel construction, which comprises the steps of: (1) soil cabin replacement filling: performing the process of soil cabin replacement filling by using a spiral excavating machine and a slip casting system synchronously working with the spiral excavating machine; (2) advanced slip casting inside the machine: beating a plurality of slip casting pipes into the soil on the upper part of the shield machine from inner to outer inside the shield machine by respectively passing through a plurality of advanced geologic holes and then synchronously injecting cement paste into the soil on the upper part of the shield machine through the slip casting pipes by using a slip casting device till the cement paste cannot be injected any more; (3) cleaning cabin and exchanging tool synchronously: manually cleaning the cement plaster solidified inside the soil cabin and synchronously exchanging the tool mounted on the shield machine; and (4) getting rid of the difficult position of the shield machine and recovering the process. The method provided by the invention has the advantages of reasonable design, convenience for operation, low cost, high safety factor, good use effect and capable of solving the problem that the tool cannot be exchanged in the traditional tool exchanging mode under severe tool exchanging conditions.
Description
Technical field
The invention belongs to the tunneling shield technical field of construction, especially relate to a kind of method for exchanging tool of shield machine for tunnel construction.
Background technology
Shield method is a kind of Fully-mechanized job practices of modern constructing tunnel, and its plant equipment of mainly using is shield machine, is divided into two types of earth pressure balanced shield, EPBS and slurry balance shields, wherein uses more with earth pressure balanced shield, EPBS.Shield machine carries out earth cutting and catalase by cutter in tunnel excavating process; and (especially ground consisting of hard rock or hard-soft heterogeneous ground) need to carry out cutter changing behind the shield machine long distance driving; if but shield machine stop position stratum is comparatively loose, face soil body self-stable ability is poor, exist directly over the cutterhead under the condition such as construction of structures, shield machine then can't adopt at present domestic several modes commonly used to carry out tool changing.
At present, the tool changing mode that adopts in tunneling process of Shield Machine mainly contains following four kinds:
When the first, the stratum self-stable ability is good, the normal pressure tool changing under the natural conditions;
When the second, stratum guarantor gas ability is good, the air pressure tool changing under the natural conditions;
Three, the stratum self-stable ability is poor, but when having ground to reinforce condition, the normal pressure tool changing under the stratum consolidation condition;
Four, the gas ability is protected on the stratum, but when having ground to reinforce condition, the air pressure tool changing under the stratum consolidation condition.
To sum up, more than four kinds of tool changing technology all be based on corresponding precondition, if but the precondition of above four kinds of tool changing modes all can not satisfy the time just can't change shield machine cutter.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned deficiency of the prior art; a kind of method for exchanging tool of shield machine for tunnel construction is provided; it is reasonable in design, easy and simple to handle, input cost is low and safety factor is high, result of use is good; can effectively solve comparatively loose on shield machine stop position stratum, face soil body self-stable ability is poor, have in the comparatively abominable situation of the tool changing condition such as construction of structures the practical problem that existing tool changing mode commonly used can't be carried out tool changing directly over the cutterhead.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of method for exchanging tool of shield machine for tunnel construction is characterized in that the method may further comprise the steps:
Step 1, Tu Cang replace filling: employing screw conveyor machine and the filling system of synchronousing working with the screw conveyor machine carry out the Tu Cang displacement and fill, described screw conveyor machine is installed in the native storehouse lower sidewall in the shield machine, described filling system is installed in the side wall upper part of Tu Cang, and corresponding soil outlet and the grouting port that is provided with for screw conveyor machine and the installation of described filling system on the sidewall of described Tu Cang; And when carrying out Tu Cang displacement filling, by the screw conveyor machine all earth of inside, native storehouse are discharged in native storehouse from the bottom to top gradually, and at earth from the bottom to top gradually in native storehouse the discharge process, from top to bottom synchronously the native storehouse internal cavities after the earth discharge is filled by described filling system, until all earth in the native storehouse are all replaced with cement mortar, then finish the Tu Cang displacement filling process that the earth in the native storehouse is all replaced with cement mortar from top to bottom; In the Tu Cang displacement filling process, native storehouse internal pressure is carried out Real Time Monitoring, and native storehouse internal pressure is controlled between 1.5bar～3.0bar;
Pre-grouting in step 2, the machine: behind the Tu Cang displacement end-of-fill, carry out immediately pre-grouting process in the machine in the step 1; And carry out before the interior pre-grouting of machine, first choose a plurality of advance geologic inspecting holes as injected hole in all advance geologic inspecting holes that lay on shield machine middle part and/or top, selected a plurality of described injected hole along the circumferential direction is laid on the lateral wall of shield machine middle and upper part; Afterwards, adopt again electronic hammering equipment and from the inside to the outside many Grouting Pipe are thrown in the soil body on shield machine top by a plurality of described injected holes respectively from shield machine inside, and the degree of depth that described Grouting Pipe is thrown in the soil body of shield machine top is 4m～6m; Subsequently, adopt again grouting equipment and by throwing many Grouting Pipe in the soil body of shield machine top into, synchronously in the soil body on shield machine top injected water mud until till the cement paste that can not reinject, then finish pre-grouting process in the machine, then finish the reinforcing process of the shield machine top soil body being carried out integral reinforcing after the cement paste in injecting the shield machine top soil body solidifies; And carry out in the machine in the pre-grouting process, the grouting pressure of each Grouting Pipe all is controlled at 0.3Mpa～0.4Mpa;
Above-mentioned a kind of method for exchanging tool of shield machine for tunnel construction, it is characterized in that: described in the step 1 pass through the screw conveyor machine with all earth of inside, native storehouse from the bottom to top gradually in native storehouse the discharge process, the rotation status of spiral is for being rotated in the forward in the screw conveyor machine; And after Tu Cang displacement filling process is finished to the process of bringing down stocks described in the step 3, every interval 2h～3h counter-rotates once the spiral of screw conveyor machine and the time of each reverse rotation is 40s～80s, with the spiral of guaranteeing the screw conveyor machine not by the slurry consolidation of cement mortar.
Above-mentioned a kind of method for exchanging tool of shield machine for tunnel construction is characterized in that: the cement mortar described in the step 1 is 150 ± 10: 120 ± 8 by cement, swell soil, flyash and fine sand according to weight ratio: 180 ± 12: 660 ± 40 ratio evenly mixes.
Above-mentioned a kind of method for exchanging tool of shield machine for tunnel construction, it is characterized in that: when in the step 1 native storehouse internal pressure being carried out Real Time Monitoring, according to the actual Water And Earth Pressures size of the current construction location of shield machine place face, the internal pressure of Tu Cang is adjusted accordingly in 1.5bar～3.0bar scope.
Above-mentioned a kind of method for exchanging tool of shield machine for tunnel construction, it is characterized in that: carry out in the step 2 in the pre-grouting process, should carry out several times slip casting and by grouting port the cement mortar curdled appearance of injecting in the native storehouse in the step 1 be carried out Synchronous, and the grouting pressure of each Grouting Pipe of reply carries out real-time monitored in the each time slip casting process, when the grouting pressure of Grouting Pipe rises, then stop slip casting, after the grouting pressure of Grouting Pipe is down to preset pressure and is stablized, proceed again next time slip casting; When the cement mortar in injecting native storehouse in the step 1 is solidified maybe when can not be again by Grouting Pipe during injected water mud, just finishing the pre-grouting process in the soil body of shield machine top; Afterwards, inject the sealing of hole slurries by described grouting equipment and Grouting Pipe in the soil body of shield machine top and carry out sealing of hole, the mixed serum of described sealing of hole slurries for evenly being mixed according to 1: 0.5 ± 0.05 weight ratio by cement paste and water glass.
Above-mentioned a kind of method for exchanging tool of shield machine for tunnel construction, it is characterized in that: carrying out before the labor cleaning being set in cement bonded sand lumps in the native storehouse described in the step 3, the curdled appearance that cement mortar in the reply step 1 in the native storehouse of injection and step 2 are injected the cement paste in the soil body of shield machine top checks, and after the cement paste that the cement mortar of injecting in the determining step one to be checked and step 2 are injected all solidifies, begin again to bring down stocks; And when bringing down stocks, open first the native door in people's lock on the shield machine, and the cement mortar situation of solidifying in the native storehouse observed, and adopt the cement bonded sand lumps of drill rod in native storehouse to beat behind a plurality of holes and observe and have or not spewing phenomenon, when stablizing without spewing phenomenon and face situation, directly the cement bonded sand lumps in the native storehouse is carried out the labor cleaning.
Above-mentioned a kind of method for exchanging tool of shield machine for tunnel construction, it is characterized in that: in the step 3 when being set in cement bonded sand lumps in the native storehouse and carrying out the labor cleaning, cleaning sequentially is: first the cement bonded sand lumps of the first half in the native storehouse is cleared up, the cement bonded sand lumps of the latter half in the native storehouse is cleared up again; And when the cement bonded sand lumps of the first half or the latter half in the native storehouse is cleared up, all first the cement bonded sand lumps of left-half in the native storehouse is cleared up, again the cement bonded sand lumps of latter half in the native storehouse is cleared up.
Above-mentioned a kind of method for exchanging tool of shield machine for tunnel construction, it is characterized in that: getting rid of poverty in the process to finishing shield machine after the tool changing described in the step 4 connects one and prevents the excessive stiffening device that causes hinged oil cylinder fracture of the hinged pressure of shield tail between the middle shield of shield machine and shield tail.
Above-mentioned a kind of method for exchanging tool of shield machine for tunnel construction is characterized in that: behind the Tu Cang displacement end-of-fill, form one deck cement mortar film at cutterhead opening part and the otch ring place of shield machine in the step 1; When bringing down stocks in the step 3, keep the cutterhead opening of shield machine and the cement mortar film at otch ring place, and guarantee the cutterhead opening of not disturbance shield machine and the cement mortar film at otch ring place, when in labor cleaning's process described cement mortar film being carried out part when cutting, then carry out shutoff with rapid setting cement immediately.
Above-mentioned a kind of method for exchanging tool of shield machine for tunnel construction is characterized in that: be connected by grouting pipe between grouting port described in the step 1 and the described filling system, and the ball valve that described grouting pipe is carried out break-make control is installed on the described grouting port; Employing described in the step 3 is beaten boring tool the cement bonded sand lumps that is set in the native storehouse is carried out in labor cleaning's process, when clearing up to the ball valve installed position, adopt first and beat the cutter cleaning equipment described ball valve cement bonded sand lumps is on every side cleaned out, again induced draft fan is received the outside of described ball valve and ventilated in native storehouse by described ball valve.
The present invention compared with prior art has the following advantages:
1, easy construction and cutter replacing method step are simple, and it is convenient to realize.
2, reasonable in design, actual exchanging knives process comprises mainly that Tu Cang displacement is filled, pre-grouting in the machine, bring down stocks and synchronously tool changing and shield machine are got rid of poverty and recovered to advance four steps.Wherein, Tu Cang displacement filling process is that the earth in the native storehouse is replaced into cement mortar, it mainly contains the effect of two aspects: the one, and fill the cutterhead opening part and the otch ring place that make shield machine by the Tu Cang displacement and form one deck cement mortar film, and in the exchanging knives process Tu Cang after the displacement is produced certain supporting role to the face soil body; The 2nd, guaranteed that in the process of bringing down stocks native storehouse internal construction is relatively stable, for the personnel of bringing down stocks provide time and the space of bringing down stocks, guarantee the personnel's of bringing down stocks safety.Advance geologic inspecting hole by shield machine inside in the interior pre-grouting process of machine carries out slip casting to the soil body above the cutterhead, cost of investment is low and realization is convenient, the effective soil body directly over the cutterhead of reinforcing shield machine and the otch ring is to strengthen the stability of the cutterhead top soil body.The process of bringing down stocks is that the cement mortar in the native storehouse is carried out the labor cleaning, carries out simultaneously cutter changing in the scale removal process.
3, tool changing efficient is high and do not affect the construction period, and the safety factor in the exchanging knives process is very high, can guarantee effectively that the tool changing work progress fast, effectively carry out.
4, practical value height and result of use are good; can solve effectively that shield machine stop position stratum is comparatively loose, face soil body self-stable ability is poor, exist under the conditions such as construction of structures directly over the cutterhead; the practical problem that existing at present domestic several tool changing modes commonly used can't be carried out tool changing; and the present invention need not any precondition when carrying out tool changing, thereby the shield machine cutter when having solved existing shield structure tool changing mode without corresponding tool changing condition is changed a difficult problem.
5, widely applicable, can effectively be suitable for to all shield machine tool changing constructions based on earth pressure balance.
In sum; the present invention is reasonable in design, easy and simple to handle, input cost is low and safety factor is high, result of use is good; can effectively solve comparatively loose on shield machine stop position stratum, face soil body self-stable ability is poor, have in the comparatively abominable situation of the tool changing condition such as construction of structures the practical problem that existing tool changing mode commonly used can't be carried out tool changing directly over the cutterhead.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is the present invention carries out tool changing to shield machine method flow block diagram.
Fig. 2 is the state reference map of the present invention when carrying out Tu Cang displacement and filling.
Fig. 3 is the state reference map of the present invention when carrying out pre-grouting in the machine.
Fig. 4 is the A-A sectional view of Fig. 3.
Fig. 5 to be the present invention to being set in cement bonded sand lumps in the native storehouse carry out labor cleaning's cleaning sequential schematic.
Description of reference numerals:
1-Tu Cang; 2-screw conveyor machine; 3-earth;
The 4-cement mortar; The 5-grouting port; The 6-shield machine;
7-advance geologic inspecting hole; The 8-Grouting Pipe; 9-screw conveyor mouth.
The specific embodiment
As shown in Figure 1 a kind of is applicable to that shield machine stop position stratum is comparatively loose, face soil body self-stable ability is poor, exist under the conditions such as construction of structures directly over the cutterhead; shield machine can't adopt the at present domestic method for exchanging tool of shield machine for tunnel construction of four kinds of modes (seeing the content that the background technology part is put down in writing for details) when carrying out tool changing commonly used, it is characterized in that the method may further comprise the steps:
Step 1, Tu Cang replace filling: employing screw conveyor machine 2 and the filling system of synchronousing working with screw conveyor machine 2 carry out the Tu Cang displacement and fill, described screw conveyor machine 2 is installed in native storehouse 1 lower sidewall in the shield machine 6, described filling system is installed in the side wall upper part in native storehouse 1, and corresponding soil outlet and the grouting port 5 that is provided with for screw conveyor machine 2 and the installation of described filling system on the sidewall in described native storehouse 1; And when carrying out Tu Cang displacement filling, by screw conveyor machine 2 with all earth 3 of 1 inside, native storehouse from the bottom to top gradually from the 1 interior discharge of native storehouse, and at earth 3 from the bottom to top gradually from the 1 interior discharge process of native storehouse, from top to bottom synchronously native storehouse 1 internal cavities after earth 3 discharges is filled by described filling system, until all earth 3 in the native storehouse 1 are all replaced with cement mortar 4, then finish the Tu Cang displacement filling process that the earth in the native storehouse 1 is all replaced with cement mortar 4 from top to bottom; In the Tu Cang displacement filling process, native storehouse 1 internal pressure is carried out Real Time Monitoring, and native storehouse 1 internal pressure is controlled between 1.5bar～3.0bar, the view of its Tu Cang displacement filling process sees Fig. 2 for details.
In the practice of construction, described cement mortar 4 is 150 ± 10: 120 ± 8 by cement, swell soil, flyash and fine sand according to weight ratio: 180 ± 12: 660 ± 40 ratio evenly mixes.In the present embodiment, described cement mortar 4 is 150: 120: 180 by cement, swell soil, flyash and fine sand according to weight ratio: 660 ratio evenly mixes.In the practice of construction process, should be according to actual concrete condition, the ratio of cement, swell soil, flyash and fine sand in the cement mortar 4 is adjusted accordingly.
In the practice of construction process, when native storehouse 1 internal pressure is carried out Real Time Monitoring, actual Water And Earth Pressures size according to shield machine 6 current construction location place faces, the internal pressure in native storehouse 1 is adjusted accordingly in 1.5bar～3.0bar scope, so that the actual Water And Earth Pressures in the same size of the internal pressure in native storehouse 1 size and current construction location place face.In the present embodiment, be connected by grouting pipe between described grouting port 5 and the described filling system, and the ball valve that described grouting pipe is carried out break-make control is installed on the described grouting port 5.
In the actual mechanical process, by controlling described ball valve and utilizing described filling system synchronously the earth in native storehouse 1 to be replaced filling, make the earth in the native storehouse 1 all be replaced into cement mortar 4.The match ratio of described cement mortar 4 is: cement: swell soil: flyash: sand=150kg: 120kg: 180kg: 660kg, the about 30m of grouting amount
3, the unearthed situation of noting observing screw conveyor machine 2 rear portion screw conveyor mouths 9 in the displacement filling process guarantees that the earth of the native storehouse 1 interior overwhelming majority is out replaced.The internal pressure in the native storehouse 1 of control is between 1.5bar～3.0bar in the displacement filling process, avoid pressure too small or excessive, the size of soil storehouse 1 internal pressure determines that according to actual face Water And Earth Pressures the too small meeting of pressure causes surface settlement, and pressure is crossed conference main shaft seals is caused damage.
To sum up, Tu Cang displacement filling process is that the earth 3 in the native storehouse 1 is replaced into cement mortar 4, it mainly contains the effect of two aspects: the one, and fill the cutterhead opening part and the otch ring place that make shield machine 6 by the Tu Cang displacement and form one deck cement mortar film, and in the exchanging knives process the 1 pair of face soil body in the native storehouse after the displacement is produced certain supporting role; The 2nd, guaranteed that in the process of bringing down stocks native storehouse internal construction is relatively stable, for the personnel of bringing down stocks provide time and the space of bringing down stocks, guarantee the personnel's of bringing down stocks safety.
Pre-grouting in step 2, the machine: behind the Tu Cang displacement end-of-fill, carry out immediately pre-grouting process in the machine in the step 1; And carry out before the interior pre-grouting of machine, choose first a plurality of advance geologic inspecting hole 7 as injected hole in all advance geologic inspecting holes 7 that lay on shield machine 6 middle parts and/or top, selected a plurality of described injected hole along the circumferential direction is laid on the lateral wall of shield machine 6 middle and upper parts; Afterwards, adopt again electronic hammering equipment and from the inside to the outside many Grouting Pipe 8 are thrown in the soil body on shield machine 6 tops by a plurality of described injected holes respectively from shield machine 6 inside, and the degree of depth that described Grouting Pipe 8 is thrown in the shield machine 6 top soil bodys is 4m～6m; Subsequently, adopt again grouting equipment and by throwing the many Grouting Pipe 8 in the shield machine 6 top soil bodys into, synchronously in the soil body on shield machine 6 tops injected water mud until till the cement paste that can not reinject, then finish pre-grouting process in the machine, then finish the reinforcing process of the shield machine 6 top soil bodys being carried out integral reinforcing after the cement paste in injecting the shield machine 6 top soil bodys solidifies; And carry out in the machine in the pre-grouting process, the grouting pressure of each Grouting Pipe 8 all is controlled at 0.3Mpa～0.4Mpa, pre-grouting status of processes schematic diagram sees Fig. 3 and Fig. 4 for details in its machine.
Actual carrying out in the pre-grouting process, should carry out several times slip casting and carry out Synchronous by the cement mortar curdled appearance of injecting in 5 pairs of step 1 of grouting port in the native storehouse 1, and the grouting pressure of each Grouting Pipe 8 of reply carries out real-time monitored in the each time slip casting process, when the grouting pressure of Grouting Pipe 8 rises, then stop slip casting, and after the grouting pressure of Grouting Pipe 8 is down to preset pressure and is stablized, proceed again next time slip casting; When the cement mortar in injecting native storehouse 1 in the step 1 is solidified maybe when can not be again by Grouting Pipe 8 during injected water mud, just finishing the pre-grouting process in the shield machine 6 top soil bodys; Afterwards, inject the sealing of hole slurries by described grouting equipment and Grouting Pipe 8 in the shield machine 6 top soil bodys and carry out sealing of hole, the mixed serum of described sealing of hole slurries for evenly being mixed according to 1: 0.5 ± 0.05 weight ratio by cement paste and water glass.
In the present embodiment, the mixed serum of described sealing of hole slurries for evenly being mixed according to 1: 0.5 weight ratio by cement paste and water glass in the practice of construction process, should be according to actual needs adjusts accordingly the weight ratio of cement paste and water glass in the sealing of hole slurries.
During the practice of construction process, carry out in the pre-grouting process, for the grouting pressure that prevents described grouting equipment excessive, should carry out Real Time Monitoring to the surface settlement situation of native storehouse 1 internal pressure and shield machine 6 current construction sites synchronously and adjust accordingly according to the grouting pressure of monitored results to described grouting equipment, guarantee to maintain native storehouse 1 internal pressure between 1.5bar～3.0bar and the ground of control shield machine 6 current construction sites the sedimentation situation can not occur.In addition, described in the step 2 pass through Grouting Pipe 8 can not be again in the shield machine 6 top soil bodys during injected water mud for after repeatedly slip casting finishes and the grouting pressure of Grouting Pipe 8 be in all the time propradation, continue again afterwards to stop slip casting constantly behind slip casting 20min～30min.
In the present embodiment, described Grouting Pipe 8 is steel floral tube, and the external diameter of described steel floral tube is identical with the aperture of advance geologic inspecting hole 7.
To sum up, actual when carrying out in the machine pre-grouting, select the above advance geologic inspecting hole 7 in shield machine 6 middle parts to carry out pre-grouting, the Grouting Pipe 8 of at first pre-grouting being used is squeezed into by advance geologic inspecting hole 7 in the soil body of shield machine 6 tops, carries out slip casting again.The Grouting Pipe 8 that pre-grouting is used adopts steel floral tube, slurries adopt cement paste (being single liquid slurry), grouting pressure is controlled at 0.3Mpa～0.4Mpa, continue to carry out slip casting after the pressure stability, until behind the pressure rise, annotate again 20min～30min, then inject the biliquid slurry (described sealing of hole slurries) that is formed by cement and water glass and carry out sealing of hole.Note observing reading and the surface settlement situation of institute's setting pressure table on the native storehouse 1 in the slip casting process, preventing that grouting pressure is excessive causes unnecessary loss, and grouting amount is according in the slip casting process inspection situation of institute's mounting ball valve and the situation of change of grouting pressure on 1 grouting port that sidewall is opened 5 of native storehouse being decided.
To sum up, the advance geologic inspecting hole 7 that carries out pre-grouting in the machine in the step 2 and be by shield machine 6 inside carries out slip casting to the soil body of cutterhead top, its objective is the cutterhead of reinforcing shield machine 6 and the soil body directly over the otch ring, to strengthen the stability of the cutterhead top soil body.
In the actual use procedure, in the step 1 by screw conveyor machine 2 with all earth 3 of 1 inside, native storehouse from the bottom to top gradually from the 1 interior discharge process of native storehouse, the rotation status of spiral is for being rotated in the forward in the screw conveyor machine 2; And after Tu Cang displacement filling process is finished to the process of bringing down stocks described in the step 3, every interval 2h～3h counter-rotates once the spiral of screw conveyor machine 2 and the time of each reverse rotation is 40s～80s, with the spiral of guaranteeing screw conveyor machine 2 not by the slurry consolidation of cement mortar 4.
That is to say, after the Tu Cang described in step 1 displacement filling process is finished to the bringing down stocks described in the step 3, all need every interval 2h～3h that the direction of rotation of screw conveyor machine 2 is carried out the intermittent reverse rotation once in the whole work progress, it is intermittent counter-rotating spiral, with the spiral of guaranteeing screw conveyor machine 2 not by the slurry consolidation of cement mortar 4, generally speaking, all should carry out intermittent counter-rotating spiral in 24 hours after Tu Cang displacement filling process is finished.
Carry out before the labor cleaning being set in cement bonded sand lumps in the native storehouse 1, the curdled appearance that cement mortar in the reply step 1 in the native storehouse 1 of injection and step 2 are injected the cement paste in the shield machine 6 top soil bodys checks, and after the cement paste that the cement mortar of injecting in the determining step one to be checked and step 2 are injected all solidifies, begin again to bring down stocks; And when bringing down stocks, open first the native door in people's lock on the shield machine 6, and the cement mortar situation of solidifying in the native storehouse 1 observed, and also observe after adopting the cement bonded sand lumps of drill rod in native storehouse 1 to beat a plurality of holes and have or not spewing phenomenon, when stablizing without spewing phenomenon and face situation, directly the cement bonded sand lumps in the native storehouse 1 is carried out the labor cleaning.In the present embodiment, when being set in cement bonded sand lumps in the native storehouse 1 and carrying out the labor cleaning, cleaning sequentially is: first the cement bonded sand lumps of native storehouse 1 interior the first half is cleared up, the cement bonded sand lumps of native storehouse 1 interior the latter half is cleared up again in the step 3; And when the cement bonded sand lumps of native storehouse 1 interior the first half or the latter half is cleared up, all first the cement bonded sand lumps of native storehouse 1 interior left-half is cleared up, again the cement bonded sand lumps of native storehouse 1 interior latter half is cleared up.Actual order of carrying out the labor cleaning sees Fig. 5 for details, first sequence number is cleared up for native storehouse 1 interior upper left cement bonded sand lumps 1., again sequence number is cleared up for native storehouse 1 interior upper right portion cement bonded sand lumps 2., again sequence number is cleared up for native storehouse 1 interior bottom left section cement bonded sand lumps 3. subsequently, again sequence number is cleared up for native storehouse 1 interior lower right-most portion cement bonded sand lumps 4. at last.In addition.Adopt and to beat boring tool the cement bonded sand lumps that is set in the native storehouse 1 is carried out in labor cleaning's process, clear up the cement bonded sand lumps on one side, Yi Bian adopt rapid setting cement that the face weak spot is carried out shutoff, the assurance face is stablized; And when 1 bottom, native storehouse has water to ooze out, then draw water with water pump immediately in the scale removal process.
In the present embodiment, behind the Tu Cang displacement end-of-fill, form one deck cement mortar film at cutterhead opening part and the otch ring place of shield machine 6 in the step 1.When bringing down stocks in the step 3, keep the cutterhead opening of shield machine 6 and the cement mortar film at otch ring place, and guarantee the cutterhead opening of not disturbance shield machine 6 and the cement mortar film at otch ring place, when in labor cleaning's process described cement mortar film being carried out part when cutting, then carry out shutoff with rapid setting cement immediately.During practice of construction, employing is beaten boring tool the cement bonded sand lumps that is set in the native storehouse 1 is carried out in labor cleaning's process, when clearing up to the ball valve installed position, adopt first and beat the cutter cleaning equipment cement bonded sand lumps around the described ball valve is cleaned out, the outside of again induced draft fan being received described ball valve also by described ball valve to the 1 interior ventilation of native storehouse.
To sum up, bring down stocks in the step 3 before at first by the ball valve installed on the grouting port 5 to Tu Cang displacement fill and machine in the effect of pre-grouting check.Namely begin after having checked to bring down stocks, at first open the native door in people's lock, observe soil body situation in the storehouse, some with the drill rod punching after, observation has or not spewing phenomenon.If stable without spewing phenomenon and face situation, then directly the soil body in the native storehouse 1 is carried out the labor cleaning.In the present embodiment, that adopts beats the cutter cleaning equipment for raising pick, spade, woven bag, conveyor and slag-soil truck, during actual the cleaning, pick is raised in employing first, spade cuts, adopt again knitting bagged soil, manually serve afterwards conveyor, be sent to slag-soil truck by conveyor again.Bring down stocks to keep cutterhead opening and otch ring place cement, as far as possible the soil body at not disturbance cutterhead opening and otch ring place in the process.As cut in the process some areas and cross cutter, use immediately the rapid setting cement shutoff., the soil body around the ball valve is cleaned out when being laid in the ball valve of 9 positions on 1 sidewall of native storehouse in cleaning, with the outside that induced draft fan is received ball valve, carried out the ventilation in the native storehouse 1.Should be according to actual concrete condition in the actual scale removal process, one side is cleared up, and the face weak spot is carried out shutoff on one side, guarantees that face is stable.If the bottom has water to ooze out in the process of bringing down stocks, then in time use pumping for water pump.
Simultaneously, in the process of bringing down stocks, while cut cutter is removed and changed, dig out one, change one.For the cutter that is difficult to install, remove first, rotating cutter-head is changed again after the Tu Cang cleaning is finished.Every replacing one will be carried out the gauze shutoff to cutter to space on every side.In addition, need also to check cutter that every inspection one according to the tool wear situation, cutter tool setting check and regulate an individual situation and analyzed by experienced construction group.This work is responsible for tissue by the chief engineer, and shield structure team leader, shield structure driver, technician participate in analyzing, and in time judge other cutter situations and next step Adopts measure.
To sum up, the process of bringing down stocks is that the cement mortar in the native storehouse 1 is carried out the labor cleaning, carries out simultaneously cutter changing in the scale removal process.
In the practice of construction process, get rid of poverty in the process to finishing shield machine 6 after the tool changing, between the middle shield of shield machine 6 and shield tail, connect one and prevent the excessive stiffening device that causes hinged oil cylinder fracture of the hinged pressure of shield tail.In the present embodiment, described stiffening device is junction steel plate, and described junction steel plate is weldingly fixed between middle shield and the shield tail.To sum up, cause hinged oil cylinder to rupture for preventing that the hinged pressure of shield tail is excessive, in the process of getting rid of poverty, between middle shield and shield tail, add the weldering junction steel plate.
In addition, because native storehouse 1 is the hole capital after selling all securities state, native storehouse 1 can't be set up in the short period of time before recovering to advance.For preventing surface settlement, before recovering to advance, at first the 1 interior foundation of native storehouse can be supported the air pressure of the face soil body, advance again.
The above; it only is preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, every any simple modification, change and equivalent structure of above embodiment being done according to the technology of the present invention essence changes, and all still belongs in the protection domain of technical solution of the present invention.
Claims (10)
1. method for exchanging tool of shield machine for tunnel construction is characterized in that the method may further comprise the steps:
Step 1, Tu Cang replace filling: employing screw conveyor machine (2) and the filling system of synchronousing working with screw conveyor machine (2) carry out the Tu Cang displacement and fill, described screw conveyor machine (2) is installed in Tu Cang (1) lower sidewall in the shield machine (6), described filling system is installed in the side wall upper part of Tu Cang (1), and correspondence is provided with soil outlet and the grouting port (5) that supplies screw conveyor machine (2) and described filling system to install on the sidewall of described Tu Cang (1); And when carrying out Tu Cang displacement filling, in Tu Cang (1), discharge gradually from the bottom to top by all earth (3) that screw conveyor machine (2) Jiang Tucang (1) is inner, and at earth (3) from the bottom to top gradually in Tu Cang (1) the discharge process, from top to bottom synchronously Tu Cang (1) internal cavities after earth (3) discharge is filled by described filling system, until all earth (3) in the Tu Cang (1) are all replaced with cement mortar (4), then finish the Tu Cang displacement filling process that the earth in the Tu Cang (1) is all replaced with cement mortar (4) from top to bottom; In the Tu Cang displacement filling process, Tu Cang (1) internal pressure is carried out Real Time Monitoring, and Tu Cang (1) internal pressure is controlled between 1.5bar～3.0bar;
Pre-grouting in step 2, the machine: behind the Tu Cang displacement end-of-fill, carry out immediately pre-grouting process in the machine in the step 1; And carry out before the interior pre-grouting of machine, first choose a plurality of advance geologic inspecting holes (7) as injected hole in all advance geologic inspecting holes (7) that lay on shield machine (6) middle part and/or top, selected a plurality of described injected hole along the circumferential direction is laid on the lateral wall of shield machine (6) middle and upper part; Afterwards, adopt again electronic hammering equipment and from the inside to the outside many Grouting Pipe (8) are thrown in the soil body on shield machine (6) top by a plurality of described injected holes respectively from shield machine (6) inside, and the degree of depth that described Grouting Pipe (8) is thrown in the soil body of shield machine (6) top is 4m～6m; Subsequently, adopt again grouting equipment and by throwing the many Grouting Pipe (8) in the soil body of shield machine (6) top into, synchronously to the interior injected water mud of the soil body on shield machine (6) top until till the cement paste that can not reinject, then finish pre-grouting process in the machine, then finish the reinforcing process of shield machine (6) the top soil body being carried out integral reinforcing after the cement paste in injecting shield machine (6) the top soil body solidifies; And carry out in the machine in the pre-grouting process, the grouting pressure of each Grouting Pipe (8) all is controlled at 0.3Mpa～0.4Mpa;
Step 3, bring down stocks and synchronously tool changing: after in step 1, injecting cement mortar in the Tu Cang (1) and step 2 and injecting cement paste in the soil body of shield machine (6) top and all solidify, employing is beaten boring tool the cement bonded sand lumps that is set in the Tu Cang (1) is carried out the labor cleaning, and in the cement bonded sand lumps scale removal process, all cutter changings of synchronously need that are installed on the shield machine (6) being changed; In the cement bonded sand lumps scale removal process, on one side the cement bonded sand lumps that is set in the Tu Cang (1) is cut, on one side the cutter of digging out is changed, and whenever dig out a cutter, immediately this cutter of digging out is changed, until till upper all cutters that need to change of shield machine (6) have all been changed, then finish the exchanging knives process of shield machine (6); And every replacing complete needs cutter to adopt gauze that shutoff is carried out in the space of changing all sides of rear cutter;
Step 4, shield machine are got rid of poverty and are recovered and advance: according to the conventional shield machine method of getting rid of poverty, the shield machine (6) of finishing in the step 3 after the tool changing is got rid of poverty; And after shield machine (6) is got rid of poverty, adopt first supercharging equipment in Tu Cang (1), to set up air pressure, and so that the interior institute of Tu Cang (1) aerating pressure energy enough supports the soil body of face, according to conventional shield machine propulsion method, the shield machine (6) after the pressurization in the Tu Cang (1) is advanced afterwards.
2. according to a kind of method for exchanging tool of shield machine for tunnel construction claimed in claim 1, it is characterized in that: pass through inner all earth (3) of screw conveyor machine (2) Jiang Tucang (1) from the bottom to top gradually from interior the discharge process of Tu Cang (1) described in the step 1, the rotation status of the middle spiral of screw conveyor machine (2) is for being rotated in the forward; And after Tu Cang displacement filling process is finished to the process of bringing down stocks described in the step 3, every interval 2h～3h counter-rotates once the spiral of screw conveyor machine (2) and the time of each reverse rotation is 40s～80s, with the spiral of guaranteeing screw conveyor machine (2) not by the slurry consolidation of cement mortar (4).
3. according to claim 1 or 2 described a kind of method for exchanging tool of shield machine for tunnel constructions, it is characterized in that: the cement mortar described in the step 1 (4) is 150 ± 10: 120 ± 8 by cement, swell soil, flyash and fine sand according to weight ratio: 180 ± 12: 660 ± 40 ratio evenly mixes.
4. according to claim 1 or 2 described a kind of method for exchanging tool of shield machine for tunnel constructions, it is characterized in that: when in the step 1 Tu Cang (1) internal pressure being carried out Real Time Monitoring, according to the actual Water And Earth Pressures size of the current construction location of shield machine (6) place face, the internal pressure of Jiang Tucang (1) adjusts accordingly in 1.5bar～3.0bar scope.
5. according to claim 1 or 2 described a kind of method for exchanging tool of shield machine for tunnel constructions, it is characterized in that: carry out in the step 2 in the pre-grouting process, should carry out several times slip casting and by grouting port (5) the cement mortar curdled appearance of injecting in the step 1 in the Tu Cang (1) be carried out Synchronous, and the grouting pressure of each Grouting Pipe of reply (8) carries out real-time monitored in the each time slip casting process, when the grouting pressure of Grouting Pipe (8) rises, then stop slip casting, after the grouting pressure of Grouting Pipe (8) is down to preset pressure and is stablized, proceed again next time slip casting; When the cement mortar in injecting Tu Cang (1) in the step 1 is solidified maybe when can not be again by Grouting Pipe (8) during injected water mud, just finishing the pre-grouting process in the soil body of shield machine (6) top; Afterwards, inject the sealing of hole slurries by described grouting equipment and Grouting Pipe (8) in the soil body of shield machine (6) top and carry out sealing of hole, the mixed serum of described sealing of hole slurries for evenly being mixed according to 1: 0.5 ± 0.05 weight ratio by cement paste and water glass.
6. according to claim 1 or 2 described a kind of method for exchanging tool of shield machine for tunnel constructions, it is characterized in that: carrying out before the labor cleaning being set in cement bonded sand lumps in the Tu Cang (1) described in the step 3, reply is injected the curdled appearance that cement mortar and step 2 in the Tu Cang (1) inject the interior cement paste of shield machine (6) the top soil body in the step 1 and is checked, and after the cement paste that the cement mortar of injecting in the determining step one to be checked and step 2 are injected all solidifies, begin again to bring down stocks; And when bringing down stocks, open first the native door in the upper people's lock of shield machine (6), and the cement mortar situation of solidifying in the Tu Cang (1) observed, and also observe after adopting the cement bonded sand lumps of drill rod in Tu Cang (1) to beat a plurality of holes and have or not spewing phenomenon, when stablizing without spewing phenomenon and face situation, directly the cement bonded sand lumps in the Tu Cang (1) is carried out the labor cleaning.
7. according to claim 1 or 2 described a kind of method for exchanging tool of shield machine for tunnel constructions, it is characterized in that: in the step 3 when being set in cement bonded sand lumps in the Tu Cang (1) and carrying out the labor cleaning, cleaning sequentially is: first the cement bonded sand lumps of the interior the first half of Tu Cang (1) is cleared up, the cement bonded sand lumps of the interior the latter half of Tu Cang (1) is cleared up again; And when the cement bonded sand lumps of the interior the first half of Tu Cang (1) or the latter half is cleared up, all first the cement bonded sand lumps of the interior left-half of Tu Cang (1) is cleared up, again the cement bonded sand lumps of the interior right half part of Tu Cang (1) is cleared up.
8. according to claim 1 or 2 described a kind of method for exchanging tool of shield machine for tunnel constructions, it is characterized in that: getting rid of poverty in the process to finishing shield machine (6) after the tool changing described in the step 4 connects one and prevents the excessive stiffening device that causes hinged oil cylinder fracture of the hinged pressure of shield tail between the middle shield of shield machine (6) and shield tail.
9. according to claim 1 or 2 described a kind of method for exchanging tool of shield machine for tunnel constructions, it is characterized in that: behind the Tu Cang displacement end-of-fill, form one deck cement mortar film at cutterhead opening part and the otch ring place of shield machine (6) in the step 1; When bringing down stocks in the step 3, keep the cutterhead opening of shield machine (6) and the cement mortar film at otch ring place, and guarantee the cutterhead opening of not disturbance shield machine (6) and the cement mortar film at otch ring place, when in labor cleaning's process described cement mortar film being carried out part when cutting, then carry out shutoff with rapid setting cement immediately.
10. according to claim 1 or 2 described a kind of method for exchanging tool of shield machine for tunnel constructions, it is characterized in that: be connected by grouting pipe between grouting port described in the step 1 (5) and the described filling system, and the ball valve that described grouting pipe is carried out break-make control is installed on the described grouting port (5); Employing described in the step 3 is beaten boring tool the cement bonded sand lumps that is set in the Tu Cang (1) is carried out in labor cleaning's process, when clearing up to the ball valve installed position, first employing is beaten the cutter cleaning equipment cement bonded sand lumps around the described ball valve is cleaned out, and induced draft fan is received the outside of described ball valve again and passed through described ball valve to ventilate to Tu Cang (1) is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010554969 CN102052079B (en) | 2010-11-19 | 2010-11-19 | Method for exchanging tool of shield machine for tunnel construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010554969 CN102052079B (en) | 2010-11-19 | 2010-11-19 | Method for exchanging tool of shield machine for tunnel construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102052079A CN102052079A (en) | 2011-05-11 |
| CN102052079B true CN102052079B (en) | 2013-03-13 |
Family
ID=43956837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010554969 Active CN102052079B (en) | 2010-11-19 | 2010-11-19 | Method for exchanging tool of shield machine for tunnel construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102052079B (en) |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305082B (en) * | 2011-07-23 | 2013-10-23 | 中铁十二局集团第二工程有限公司 | Method for relieving and cutterhead repairing of shield machine in weathering groove |
| CN102305083A (en) * | 2011-08-01 | 2012-01-04 | 北京市三一重机有限公司 | Shield machine and anterior shield system thereof |
| CN102322271B (en) * | 2011-10-10 | 2013-07-17 | 沈阳重型机械集团有限责任公司 | Tool pan back-loading type device for changing tool of slurry-balanced shield machine under normal pressure |
| CN102425425B (en) * | 2011-12-26 | 2014-07-23 | 中铁四局集团有限公司 | Working face reinforcing structure in shield machine cabin as well as construction method and equipment thereof |
| CN102434174B (en) * | 2011-12-30 | 2013-10-16 | 中铁一局集团有限公司 | Bentonite grouting method for construction of shield tunnel |
| CN102758635B (en) * | 2012-07-31 | 2014-10-29 | 中铁二局股份有限公司 | Construction method for tool changing under pressure in shield of water-rich silty soil and silty sand stratum under station tracks of railways |
| CN104005769B (en) * | 2014-03-25 | 2016-05-04 | 中铁十六局集团地铁工程有限公司 | A kind of the open the cabin method of tool changing of shield in sandy cobble with no water |
| CN104314576B (en) * | 2014-08-22 | 2016-03-30 | 江苏凯宫隧道机械有限公司 | Shield machine assembling machine base bearing down-hole replacing options |
| CN105156124B (en) * | 2015-07-10 | 2017-09-29 | 河海大学 | A kind of closing method suitable for stiff plastic expanded clay stratum |
| CN105221157B (en) * | 2015-09-22 | 2017-06-16 | 中铁一局集团有限公司 | WSS grouting and reinforcings assist gas pressure cutter replacing method in shield tunnel |
| CN105257309B (en) * | 2015-10-30 | 2018-02-09 | 上海交通大学 | In a kind of layer of sand in balancing earth-pressure shielding machine storehouse slip casting tool changing construction method |
| CN105569665B (en) * | 2015-10-30 | 2018-06-29 | 中铁十六局集团北京轨道交通工程建设有限公司 | Balancing earth-pressure shielding machine soil mass consolidation tool changing construction method outside the native storehouse in layer of sand |
| CN105464674A (en) * | 2015-12-29 | 2016-04-06 | 上海市基础工程集团有限公司 | Construction method of cutter replacing under pressure in shield-method tunnel construction |
| CN105736004B (en) * | 2016-03-11 | 2018-01-09 | 广州轨道交通建设监理有限公司 | Shield is opened a position pressurize panelling construction method with weighing apparatus shield mud air pressure |
| CN106837360A (en) * | 2017-02-13 | 2017-06-13 | 中铁十九局集团轨道交通工程有限公司 | Upper-soft lower-hard ground shield machine open a position tool changing when mud film construct mechanism and construction method |
| CN107060794B (en) * | 2017-04-10 | 2019-07-26 | 中铁十四局集团有限公司 | Hobboing cutter serrated knife exchanges process under a kind of compound stratum shield normal pressure |
| CN107201905A (en) * | 2017-06-06 | 2017-09-26 | 中铁十九局集团轨道交通工程有限公司 | Shield center girff renovation technique at ambient pressure in upper-soft lower-hard ground |
| CN107939409B (en) * | 2017-12-26 | 2024-06-25 | 中铁工程装备集团有限公司 | Normal-pressure back-mounted copying tool replacing device |
| CN108166983B (en) * | 2018-01-11 | 2020-01-17 | 河海大学 | Novel shield tail wall back grouting liquid capable of preventing loss |
| CN108643929A (en) * | 2018-05-04 | 2018-10-12 | 中铁十二局集团有限公司 | A kind of compound stratum shield sediment improvement construction system and its construction method |
| CN108868803B (en) * | 2018-09-29 | 2023-05-09 | 华东交通大学 | Shield tunneling machine structure convenient for cutter replacement and cutter replacement method |
| CN109339804B (en) * | 2018-12-21 | 2021-04-27 | 中铁十四局集团有限公司 | Device and method for cleaning shield tail seal bin of shield machine |
| CN109751057B (en) * | 2019-02-22 | 2020-06-05 | 中铁隧道集团二处有限公司 | Shield machine with bin opening tool changing and air exchanging system |
| CN109915156A (en) * | 2019-03-05 | 2019-06-21 | 中交二航局成都城市建设工程有限公司 | A kind of sand-pebble layer earth pressure balanced shield, EPBS opens a position tool changing auxiliary construction method |
| CN111706338B (en) * | 2020-05-28 | 2022-05-24 | 北京城建中南土木工程集团有限公司 | Shield advance grouting enclosure construction method |
| CN112647960A (en) * | 2020-12-30 | 2021-04-13 | 华南理工大学 | Advanced grouting reinforcement device and method for shield construction |
| CN113137239B (en) * | 2021-05-15 | 2023-08-22 | 中铁十一局武汉重型装备有限公司 | Method for reinforcing tunnel face of shield cutter head and grouting reinforcing device for method |
| CN113847047A (en) * | 2021-09-17 | 2021-12-28 | 中铁二十局集团有限公司 | Warehouse opening tool changing method |
| CN113756841A (en) * | 2021-09-18 | 2021-12-07 | 中铁十二局集团第四工程有限公司 | Advanced grouting method for shield construction in upper soft and lower hard stratum |
| CN114056966A (en) * | 2021-10-11 | 2022-02-18 | 宜昌天佑华牧科技股份有限公司 | Unloading device for bulk raw materials of compound feed |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000291384A (en) * | 1999-04-05 | 2000-10-17 | Chubu Electric Power Co Inc | Shield machine cutter bit replacing method and shield machine cutter retracting mechanism |
| JP2001107684A (en) * | 1999-10-05 | 2001-04-17 | Kawasaki Heavy Ind Ltd | Cutter exchanging method for shield machine, and the shield machine |
| CN101539023A (en) * | 2008-03-21 | 2009-09-23 | 中铁二局股份有限公司 | Shield machine belt pressure chamber opening operation construction method |
| CN101666231A (en) * | 2009-06-24 | 2010-03-10 | 中铁隧道股份有限公司 | Shield machine warehouse entry method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09303088A (en) * | 1996-05-20 | 1997-11-25 | Nippon Shibitsuku Consultant Kk | Method for replacing cutter bit for shield machine |
-
2010
- 2010-11-19 CN CN 201010554969 patent/CN102052079B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000291384A (en) * | 1999-04-05 | 2000-10-17 | Chubu Electric Power Co Inc | Shield machine cutter bit replacing method and shield machine cutter retracting mechanism |
| JP2001107684A (en) * | 1999-10-05 | 2001-04-17 | Kawasaki Heavy Ind Ltd | Cutter exchanging method for shield machine, and the shield machine |
| CN101539023A (en) * | 2008-03-21 | 2009-09-23 | 中铁二局股份有限公司 | Shield machine belt pressure chamber opening operation construction method |
| CN101666231A (en) * | 2009-06-24 | 2010-03-10 | 中铁隧道股份有限公司 | Shield machine warehouse entry method |
Non-Patent Citations (3)
| Title |
|---|
| 刘晓文.恶劣地质条件下盾构过铁路开仓换刀施工的技术分析与处理措施.《科技咨询导报》.2007,(第29期), * |
| 赵向东.浅析不稳定地质条件下换刀的地层加固.《山西建筑》.2007,(第20期), * |
| 钱新.砂层掘进中盾构刀具更换技术探讨.《建筑机械》.2009,(第01期), * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102052079A (en) | 2011-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102052079B (en) | Method for exchanging tool of shield machine for tunnel construction | |
| CN101509381B (en) | Composite shield structure suitable for complicated stratum construction | |
| CN102536253B (en) | Construction method of earth cabin back filling and cabin entering operation during earth pressure shielding | |
| CN105927236B (en) | A kind of tunnel shield machine slip casting is filled in barn cutter replacing method | |
| CN205172598U (en) | Pipe curtain spouts a supporting construction soon | |
| CN203452083U (en) | Rotary expanding pile construction equipment and grout feeding device | |
| CN105736004A (en) | Balanced shield mud air-pressure cabin opening pressure maintaining and wall protecting construction method for shield tunneling | |
| CN107938656A (en) | Complexity rebuilds base pit engineering pile base construction method | |
| CN108643929A (en) | A kind of compound stratum shield sediment improvement construction system and its construction method | |
| CN108150219B (en) | A kind of the ground water drainage system and its construction method of separate type double-hole tunnel | |
| CN106437726A (en) | Ground fracture crushed zone passing construction method for shallow-buried tunnel excavation | |
| CN103696779A (en) | Tunnel face breast wall filter cake construction process for shield compressed air operations | |
| CN108643948A (en) | The construction method in shield crossing anchor cable area | |
| CN102400694A (en) | Reinforcement method for combined part of shield tunnel and mining-method tunnel | |
| CN109139104A (en) | One kind passes through that clastic rock steep dip is inverse to rush rich water tomography tunnel drainage construction method | |
| CN102888795A (en) | Karst roadbed grouting process | |
| CN103437351A (en) | Treatment method of deviation and fracture remediation of pile body of filling pile | |
| CN108756901B (en) | Former times lattice reach special formation Shallow Tunnel Construction method | |
| CN112796296A (en) | High-pressure rotary spraying combined PVC sleeve retaining wall earth surface reinforcing construction method | |
| CN104831733A (en) | Arch bridge abutment tunnel type large-angle inclined pile construction method | |
| CN105221157B (en) | WSS grouting and reinforcings assist gas pressure cutter replacing method in shield tunnel | |
| CN207813651U (en) | A kind of ground water drainage system for double-hole tunnel | |
| CN106703836A (en) | Treatment method of the bedding soft soil of existing circular shield tunnel | |
| CN106677161A (en) | Treatment method for soft soil foundation of existing shield rectangular tunnel | |
| CN203080528U (en) | Drilling and spraying integrated foundation treating special drilling tool assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170606 Address after: An Zhen Dan Street Road No. 78 East chuangrong building A, room 301-6, 214100 Jiangsu District of Xishan city in Wuxi Province Co-patentee after: Zhongtie No.1 Bureau Group Co., Ltd. Patentee after: China Railway First Group Urban Rail Transit Engineering Co., Ltd. Address before: The northern section of Shaanxi city of Xi'an province 710054 Yanta Road No. 1 Patentee before: Zhongtie No.1 Bureau Group Co., Ltd. |
|
| TR01 | Transfer of patent right |