CN102168565A - Soil reinforcing method for realizing normal-pressure cabin opening of shield machine - Google Patents
Soil reinforcing method for realizing normal-pressure cabin opening of shield machine Download PDFInfo
- Publication number
- CN102168565A CN102168565A CN2011100676364A CN201110067636A CN102168565A CN 102168565 A CN102168565 A CN 102168565A CN 2011100676364 A CN2011100676364 A CN 2011100676364A CN 201110067636 A CN201110067636 A CN 201110067636A CN 102168565 A CN102168565 A CN 102168565A
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- cabin
- shield machine
- native cabin
- soil
- native
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- 239000002689 soil Substances 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000003014 reinforcing effect Effects 0.000 title description 3
- 239000011440 grout Substances 0.000 claims abstract description 9
- 239000004568 cement Substances 0.000 claims abstract description 6
- 210000002966 serum Anatomy 0.000 claims description 35
- 230000006641 stabilisation Effects 0.000 claims description 28
- 238000011105 stabilization Methods 0.000 claims description 28
- 238000005266 casting Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000005429 filling process Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000010881 fly ash Substances 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 14
- 238000007596 consolidation process Methods 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 abstract 3
- 230000002349 favourable effect Effects 0.000 abstract 1
- 108010066114 cabin-2 Proteins 0.000 description 22
- 239000000243 solution Substances 0.000 description 8
- 230000006872 improvement Effects 0.000 description 7
- 238000009412 basement excavation Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a soil consolidation method for realizing normal-pressure cabin opening of a shield machine. The method realizes the soil reinforcement by directly injecting mixed grout at a construction part by a shield machine, and solidifying the mixed grout to be plastic concretion with low intensity and small cohesive force on a construction face so as to finally realize normal-pressure cabin opening. The method can avoid the inconveniences caused by the soil reinforcement realized by constructing downwardly from ground or the soil reinforcement realized by injecting grout to form set cement with high intensity and large cohesive force, is favourable for the reduction of the construction cost effectively. The method is used in the field of engineering construction.
Description
Technical field
The present invention relates to a kind of soil stabilization method, particularly relate to a kind of soil stabilization method that realizes that the shield machine normal pressure opens the cabin.
Background technology
Shield machine also is known as the shield tunnel development machine usually, be a kind of special engineering machinery that is used for tunnel piercing, modern shield excavation machine light harvesting, mechanical, electrical, liquid, sensing, information technology are in one, have functions such as the excavation cutting soil body, conveying soil quarrel, assembly unit tunnel lining, the correction of measurement guiding, and to carry out manufacturing and designing of " cutting the garment according to the figure " formula according to different geology, reliability requirement is high, and shield excavation machine has been widely used in construction of tunnel such as subway, railway, highway, municipal administration, water power.
Carry out that tunnel construction has the automaticity height, saves manpower, speed of application is fast, face sedimentation controllably when cavitation, weatherproof, excavation, reduce the influence of above ground structure and do not influence characteristics such as water surface traffic when excavating under water with shield machine, under the situation long at tunnel hole line, that buried depth is bigger, with the shield machine construction more economical rationality that can seem.
But in the shield-tunneling construction process, in regular meeting needs to enter shield machine soil cabin for some reason, cutter is carried out maintenance overhaul or changes cutter, at these problems, the processing method of prior art roughly has two kinds: the one, and the staff enters shield machine by protection and adds and carry out cutter inspection or replacing in the firming cabin, this method requires high to staff's fitness, the staff need pass through Special Training can be on duty, and the inefficiency of this kind method construction, the operating expenses height; Second kind of processing method reinforced shield machine cutter head of shield machine the place ahead soil body for facing down from ground, behind the soil stabilization, the staff enters under atmospheric pressure state in the shield machine soil cabin and carries out cutter inspection or replacing, the operating expenses height of this kind method, engineering time is long, when meeting road or building and some special locations (as puddle, stream) up, the enforcement of the method is difficulty more.
Summary of the invention
For addressing the above problem, the invention provides the soil stabilization method that a kind of realization shield machine normal pressure that can effectively reduce operating expenses opens the cabin.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of soil stabilization method that realizes that the shield machine normal pressure opens the cabin is characterized in that:
May further comprise the steps:
, stop shield machine driving, the dregs emptying with in the shield machine soil cabin in casting simultaneously, seals native cabin, and native cabin is carried out pneumatic compression;
, after casting is finished in the native cabin, mixed serum is poured in the native cabin, simultaneously exhaust is carried out in native cabin, native cabin is filled to mixed serum;
, discharge the gas pressure in the described native cabin, and simultaneously in native cabin additional mixed serum to reaching predetermined pressure;
, after mixed serum solidifies, finish soil stabilization.
Be further used as the improvement of technical solution of the present invention, step and in mixed serum be that water, cement, flyash and swell soil carry out mixed preparing and form, filling process is by realizing to the soil grout hole grouting on the dividing plate of side soil cabin out of my cabin.
Be further used as the improvement of technical solution of the present invention, step～in, to the sealing in native cabin by soil airtight the finishing of native cabin dividing plate of side out of my cabin.
Be further used as the improvement of technical solution of the present invention, in the step, carry out casting, and in native cabin, inflate pressurization by the steam vent on the dividing plate of native cabin by the screw machine in the shield machine.
Be further used as the improvement of technical solution of the present invention, screw machine is provided with the screw machine safety door that space between screw machine and native cabin can be separated, and after the step casting is finished, closes the screw machine safety door of screw machine.
Be further used as the improvement of technical solution of the present invention, in step and the step, inside, native cabin is being carried out pneumatic compression, and by in the steam vent exhaust process, all observe native cabin internal pressure, control and guarantee that native cabin internal pressure is stable by soil pressure case on the dividing plate of native cabin.
Be further used as the improvement of technical solution of the present invention, when in native cabin, injecting mixed serum, rotate cutter head of shield machine mixed serum is stirred in the described step.
Be further used as the improvement of technical solution of the present invention, make mixed serum enter between the face in cutter head of shield machine face and shoveling space by shrinking the hinged oil cylinder that connects with native cabin dividing plate in the step, form plasticity concrement partition wall one by the opening of cutter head of shield machine and the position, otch annular space crack between the shield body.
Beneficial effect of the present invention: this invention is directly carried out the injection of mixed serum by shield machine in its construction part, and make it to be frozen into the plasticity concrement that intensity is low, adhesion stress is little and realize soil stabilization in working face, thereby realize that normal pressure opens the cabin, this kind job practices can effectively avoid down constructing from ground in the past carry out soil stabilization or adopt grout injection to form the intensity height, cement stone that adhesion stress is big carries out the inconvenience that soil stabilization caused, and helps effectively reducing its operating expenses.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is a shield machine structural representation of the present invention;
Fig. 2 is an embodiment of the invention work progress view;
Fig. 3 is the present invention's soil cabin diaphragm structure schematic diagram;
Fig. 4 is a cutter head of shield machine structural representation of the present invention.
The specific embodiment
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the present invention is a kind of soil stabilization method that realizes that the shield machine normal pressure opens the cabin, and it is characterized in that:
May further comprise the steps:
, stop shield machine driving, the dregs emptying with in the shield machine soil cabin 2 in casting simultaneously, seals native cabin 2, and native cabin 2 is carried out pneumatic compression;
, after castings are finished in the native cabin 2, mixed serum is poured in the native cabin 2, simultaneously exhaust is carried out in native cabin 2, native cabin 2 is filled to mixed serum;
, discharge the gas pressure in the native cabin 2, and simultaneously to native cabin 2 in additional mixed serum to reaching predetermined pressure;
, after mixed serum solidifies, finish soil stabilization.
This invention is directly carried out the injection of mixed serum by shield machine in its construction part, and make it to solidify and realize soil stabilization in working face, thereby realize that normal pressure opens the cabin, this kind job practices can effectively avoid down constructing from ground in the past carry out soil stabilization or adopt grout injection to form the intensity height, cement stone that adhesion stress is big carries out the inconvenience that soil stabilization caused, and helps effectively reducing its operating expenses.
As the preferred embodiment of the present invention, step and in mixed serum be that water, cement, flyash and swell soil carry out mixed preparing and form, filling process is realized by grout hole 8 grouting on soil cabin, 2 outsides, native cabin dividing plate 5.
The cost of manufacture of this kind mixed serum is low, and the intensity that is reached after mixed serum solidifies can reach the requirement of the protection soil body, thus can effectively play the effect of soil mass consolidation, and after the shield machine maintenance is finished, also can remove reinforcing wall eaily.
The filling process of mixed serum is undertaken by the some grout holes on the native cabin dividing plate 58, and after hatch door 10 was used to make things convenient for soil stabilization to finish, the maintenance personal entered 2 inside, native cabin, and the cutter on the cutter head of shield machine is changed and overhauled.
As the preferred embodiment of the present invention, step～in, to the sealing in native cabin 2 native cabin dividing plate 5 airtight finishing by 2 outsides, native cabin.
The sealing air pressure that soil cabin dividing plate 5 can effectively guarantee in work progress in native the cabin 2 in separates native cabin 2 with ambient pressure, thereby effectively ensures the required pressure of reinforcing wall of the soil body and mixed serum formation in the soil stabilization engineering
As the preferred embodiment of the present invention, in the step, carry out casting, and in native cabin 2, pressurize by steam vent 3 by the screw machine in the shield machine 1.In work progress, use the facility of shield machine own as far as possible, can effectively save construction cost, and when bringing convenience, effectively improve its efficiency of construction to whole construction course.
As the preferred embodiment of the present invention, screw machine 1 is provided with the screw machine safety door 4 that 2 spaces of screw machine 1 and native cabin can be separated, and after the step casting is finished, closes the screw machine safety door 4 of screw machine 1.After casting is finished, close screw machine safety door 4 and can prevent effectively that mixed serum flows in the screw machine 1 when follow-up grouting.
As the preferred embodiment of the present invention, in step and the step, 2 inside, native cabin are being carried out pneumatic compression, and by in steam vent 3 exhaust processes, all observe native cabin 2 internal pressures by the soil pressure case on the native cabin dividing plate 59, and make total pressure balance in the native cabin 2 by control inflation pressurization or exhaust pressing speed, to guarantee the safety of work progress.
As the preferred embodiment of the present invention, be provided with cutter head of shield machine 6 in the native cabin 2, when in native cabin 2, injecting mixed serum, rotate 6 pairs of mixed serums of cutter head of shield machine and stir in the step.
After finishing the casting process by screw machine 1, also have the satholith slags in the native cabin 2, stir by rotating 6 pairs of mixed serums of cutter head of shield machine, mixed serum and native slag can be mixed, effectively improve the fastness of mixed serum after fixed.
When after mixed serum condenses, reaching the required design strength of soil stabilization, need to open the hatch door 10 in native cabin 2, and the slurries concrement in the shield machine soil cabin is excavated in layering from top to bottom.
After finishing the slurries removing of condensing, before cutter head of shield machine 6 is keeped in repair, need cutter head of shield machine 6 openings of shield machine and the position, otch annular space crack between cutter head of shield machine 6 and the shield body are carried out supporting, prevent slurries concrement slump under the effect of outside scall soil pressure and water pressure at this position.
After slurries concrement in the soil cabin 2 is all excavated,, finally provide a shield machine soil underdeck operation environment that the maintenance and inspection personnel can enter safely under atmospheric pressure state through secure authentication.
As the preferred embodiment of the present invention, make mixed serum enter between the face in cutter head of shield machine face and shoveling space by shrinking the hinged oil cylinder 7 that connects with native cabin dividing plate 5 in the step by the opening of cutter head of shield machine 6 and the position, otch annular space crack between the shield body, form plasticity concrement partition wall one, thereby finish soil stabilization.
Can realize separating of native cabin dividing plate 5 and native cabin 2 by shrinking hinged oil cylinder 7, thereby discharge the gas in the native cabin 2, realize step-down in the cabin.
Certainly, the invention is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite of spirit of the present invention, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (8)
1. soil stabilization method that realizes that the shield machine normal pressure opens the cabin is characterized in that:
May further comprise the steps:
2. the soil stabilization method that realization shield machine normal pressure according to claim 1 opens the cabin is characterized in that: described step
With
In mixed serum be that water, cement, flyash and swell soil carry out mixed preparing and form, filling process is realized by the grouting of the grout hole (8) on described native cabin (2) outside native cabin dividing plate (5).
3. the soil stabilization method that realization shield machine normal pressure according to claim 1 and 2 opens the cabin is characterized in that: in described step
～
In, to the sealing in described native cabin (2) airtight the finishing of native cabin dividing plate (5) by native cabin (2) outside.
4. the soil stabilization method that realization shield machine normal pressure according to claim 3 opens the cabin is characterized in that: described step
In, carry out casting by the screw machine in the shield machine (1), and in native cabin (2), inflate pressurization by the steam vent (3) on the described native cabin dividing plate (5).
5. the soil stabilization method that realization shield machine normal pressure according to claim 3 opens the cabin is characterized in that: described step
After casting is finished, close the screw machine safety door (4) of described screw machine (1).
6. the soil stabilization method that realization shield machine normal pressure according to claim 3 opens the cabin is characterized in that: described step
And step
In, inside, native cabin (2) is being carried out pneumatic compression, and, all observing native cabin (2) internal pressure by the soil pressure case (9) on the described native cabin dividing plate (5) by in steam vent (3) exhaust process, control and guarantee that described native cabin (2) internal pressure stablizes.
7. the soil stabilization method that realization shield machine normal pressure according to claim 3 opens the cabin is characterized in that: described step
In when in native cabin (2), injecting mixed serum, rotate cutter head of shield machine (6) mixed serum stirred.
8. the soil stabilization method that realization shield machine normal pressure according to claim 3 opens the cabin is characterized in that: described step
In make mixed serum pass through the opening of cutter head of shield machine (6) and the position, otch annular space crack between the shield body enters between the face in cutter head of shield machine face and shoveling space by shrinking the hinged oil cylinder (7) connect with native cabin dividing plate (5), form plasticity concrement partition wall one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110067636 CN102168565B (en) | 2011-03-21 | 2011-03-21 | Soil reinforcing method for realizing normal-pressure cabin opening of shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110067636 CN102168565B (en) | 2011-03-21 | 2011-03-21 | Soil reinforcing method for realizing normal-pressure cabin opening of shield machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102168565A true CN102168565A (en) | 2011-08-31 |
| CN102168565B CN102168565B (en) | 2013-01-23 |
Family
ID=44489864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110067636 Expired - Fee Related CN102168565B (en) | 2011-03-21 | 2011-03-21 | Soil reinforcing method for realizing normal-pressure cabin opening of shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102168565B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425425A (en) * | 2011-12-26 | 2012-04-25 | 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 |
| CN103967498A (en) * | 2014-04-21 | 2014-08-06 | 河海大学 | Under-pressure chamber opening method for shield tunneling machine in coarse-grain soil stratum |
| CN104005769A (en) * | 2014-03-25 | 2014-08-27 | 中铁十六局集团地铁工程有限公司 | Waterless sandy cobble stratum shield cabin-opening tool changing method |
| CN105257309A (en) * | 2015-10-30 | 2016-01-20 | 上海交通大学 | Tool changing construction method for in-chamber grouting of earth pressure balance shield machine in sand bed |
| CN105257306A (en) * | 2015-10-30 | 2016-01-20 | 上海交通大学 | Reinforced warehouse-filling cutter-replacement construction method in shield tunneling machine warehouse |
| CN105545315A (en) * | 2015-12-29 | 2016-05-04 | 上海市基础工程集团有限公司 | Normal pressure tool replacing method for reinforcing excavation face soil layer in shield tunnel construction |
| CN105569665A (en) * | 2015-10-30 | 2016-05-11 | 中铁十六局集团北京轨道交通工程建设有限公司 | Tool changing construction method realizing soil mass reinforcement from outside of soil room for earth pressure balance shield machine in sand layer |
| CN106907157A (en) * | 2017-02-09 | 2017-06-30 | 广东水电二局股份有限公司 | A kind of shield machine normal pressure opens the cabin operation construction method |
| 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 |
| CN108643922A (en) * | 2018-04-18 | 2018-10-12 | 中铁十四局集团有限公司 | A kind of highly permeable soil rock compound stratum major diameter slurry shield synthesis driving method |
| CN110436836A (en) * | 2019-08-21 | 2019-11-12 | 河海大学 | SCAP formula earth pressure balanced shield, EPBS opens the cabin with mud and its preparation method |
| CN110924965A (en) * | 2019-12-18 | 2020-03-27 | 沈阳市政集团有限公司 | Construction method for solving shield cutter head stall by grouting reinforcement and internal support method |
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2011
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103993888A (en) * | 2011-12-26 | 2014-08-20 | 中铁四局集团有限公司 | Improved structure of shield tunneling machine used for reinforcement construction of tunnel face inside cabin of shield tunneling machine |
| CN102425425A (en) * | 2011-12-26 | 2012-04-25 | 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 |
| CN103993888B (en) * | 2011-12-26 | 2016-02-10 | 中铁四局集团有限公司 | A kind of shield machine modified node method for solidifying of the working face construction in shield machine cabin |
| CN104005769A (en) * | 2014-03-25 | 2014-08-27 | 中铁十六局集团地铁工程有限公司 | Waterless sandy cobble stratum shield cabin-opening tool changing method |
| 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 |
| CN103967498B (en) * | 2014-04-21 | 2016-03-23 | 河海大学 | A kind of method of opening the cabin with pressure of shield machine in coarse-grained soil stratum |
| CN103967498A (en) * | 2014-04-21 | 2014-08-06 | 河海大学 | Under-pressure chamber opening method for shield tunneling machine in coarse-grain soil stratum |
| CN105257309A (en) * | 2015-10-30 | 2016-01-20 | 上海交通大学 | Tool changing construction method for in-chamber grouting of earth pressure balance shield machine in sand bed |
| CN105257306A (en) * | 2015-10-30 | 2016-01-20 | 上海交通大学 | Reinforced warehouse-filling cutter-replacement construction method in shield tunneling machine warehouse |
| CN105569665A (en) * | 2015-10-30 | 2016-05-11 | 中铁十六局集团北京轨道交通工程建设有限公司 | Tool changing construction method realizing soil mass reinforcement from outside of soil room for earth pressure balance shield machine in sand layer |
| CN105257306B (en) * | 2015-10-30 | 2018-02-09 | 上海交通大学 | A kind of tool changing construction method of filling in barn reinforced in shield cabin |
| CN105545315A (en) * | 2015-12-29 | 2016-05-04 | 上海市基础工程集团有限公司 | Normal pressure tool replacing method for reinforcing excavation face soil layer in shield tunnel construction |
| CN106907157A (en) * | 2017-02-09 | 2017-06-30 | 广东水电二局股份有限公司 | A kind of shield machine normal pressure opens the cabin operation construction method |
| CN106907157B (en) * | 2017-02-09 | 2019-01-04 | 广东水电二局股份有限公司 | A kind of shield machine normal pressure opens the cabin operation construction method |
| 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 |
| CN108643922A (en) * | 2018-04-18 | 2018-10-12 | 中铁十四局集团有限公司 | A kind of highly permeable soil rock compound stratum major diameter slurry shield synthesis driving method |
| CN108643922B (en) * | 2018-04-18 | 2020-06-05 | 中铁十四局集团有限公司 | Large-diameter slurry shield comprehensive tunneling method for highly permeable soil-rock composite stratum |
| CN110436836A (en) * | 2019-08-21 | 2019-11-12 | 河海大学 | SCAP formula earth pressure balanced shield, EPBS opens the cabin with mud and its preparation method |
| CN110436836B (en) * | 2019-08-21 | 2021-10-15 | 河海大学 | Slurry for SCAP type earth pressure balance shield cabin opening and preparation method thereof |
| CN110924965A (en) * | 2019-12-18 | 2020-03-27 | 沈阳市政集团有限公司 | Construction method for solving shield cutter head stall by grouting reinforcement and internal support method |
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|---|---|
| CN102168565B (en) | 2013-01-23 |
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