CN107120121B - A kind of shield-tunneling construction supplements slip casting anti-settling control method in real time - Google Patents

A kind of shield-tunneling construction supplements slip casting anti-settling control method in real time Download PDF

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Publication number
CN107120121B
CN107120121B CN201710398588.4A CN201710398588A CN107120121B CN 107120121 B CN107120121 B CN 107120121B CN 201710398588 A CN201710398588 A CN 201710398588A CN 107120121 B CN107120121 B CN 107120121B
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CN
China
Prior art keywords
shield
waterglass
endless tube
slip casting
tube piece
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CN201710398588.4A
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Chinese (zh)
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CN107120121A (en
Inventor
欧莘玮
朱海军
余南山
叶亦盛
苏长毅
操琪
侯博海
刘开扬
Original Assignee
中建三局基础设施工程有限公司
中建三局集团有限公司
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Priority to CN201710398588.4A priority Critical patent/CN107120121B/en
Publication of CN107120121A publication Critical patent/CN107120121A/en
Application granted granted Critical
Publication of CN107120121B publication Critical patent/CN107120121B/en

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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04Lining with building materials
    • E21D11/10Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
    • E21D11/105Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04Lining with building materials
    • E21D11/08Lining with building materials with preformed concrete slabs

Abstract

Slip casting anti-settling control method is supplemented in real time the invention discloses a kind of shield-tunneling construction, including cutter head of shield machine, shield shell, shield tail brush, surrounding soil layer, section of jurisdiction, the first endless tube piece, the second endless tube piece, third endless tube piece, waterglass slurry Grouting Pipe, secondary synchronous grouting pipe, main synchronous grouting pipe, waterglass slurry grouting pump, waterglass are by preparing bucket, shield machine cement grout synchronous grouting case and ball valve;The present invention is effectively unified by synchronous grouting and second pulp feeding, cement injection and waterglass are organically combined, enhance the timeliness and validity of section of jurisdiction behind gap filling, it eliminates traditional secondary slip casting and shield normally tunnels the interference that the two crossed construction generates, and compared with traditional secondary grouting method, it is not required to that cement grout is separately configured again, only individually pumping waterglass slurries substantially reduce grouting amount, accelerate construction speed, it makes full use of shield machine equipment of itself to improve the degree of automation, has saved manpower and material resources.

Description

A kind of shield-tunneling construction supplements slip casting anti-settling control method in real time
Technical field
The present invention relates to control method during a kind of shield-tunneling construction, it is anti-that specially a kind of shield-tunneling construction supplements slip casting in real time Subsidence control method belongs to civil engineering building technology applied technical field.
Background technique
Although Shield Construction Technique is greatly developed, ground settlement caused by constructing still can not avoid completely, When carrying out shield-tunneling construction in city, the inevitably intensive section of penetrating ground complicated condition, top construction of structures, this is over the ground The control of face sedimentation require it is just very high, when the control of shield crossing stratum settlement requires stringent material risk engineering or region, one Kind method is to take soil stabilization, and the scheme that then shield is passed through again, this scheme requires ground to have enough reinforcing spaces, When many situation shield crossing material risk engineerings and there is no the conditions reinforced in advance, and it is very high to reinforce cost in advance.The Two methods fill shield tail gap by the method for synchronous note single slurry and subsequent auxiliary note dual slurry.Single slurries presetting period is long, Initial setting strength is low, and it is closely knit to there is a problem of that arch crown part can not fill, that there are the degree of automation is low for subsequent after-teeming dual slurry, Procedure connection hardly possible, easy plugging, and mix cement slurry in hole and cause the problems such as dust pollution is serious, and labor intensity of workers is big, to earth's surface Settlement Control effect is also not satisfactory, therefore, Suporting structure self-condition is made full use of to carry out secondary grouting technological improvement to pass It is important.
The cutterhead digging diameter of earth pressure balanced shield, EPBS is greater than shield shell outer diameter, and the diameter of tail shield is greater than the outer of section of jurisdiction Diameter.Therefore after Shield Tunneling, exist between stratum and section of jurisdiction and excavate gap, due to shield own wt, excavate The usual top in gap is larger, therefore, if the excavation gap at the top of shield does not fill in time during digging excavation, when passing through The higher stratum of the sensibility such as flour sand, Extra-fine sand, and earth's surface deformation is induced when tunnel structure is closer apart from important risk source engineering It is more than easily control standard, is difficult to control.Therefore, propose that a kind of shield-tunneling construction supplements slip casting anti-settling in real time regarding to the issue above Control method.
Summary of the invention
The object of the invention is that providing a kind of shield-tunneling construction to solve the above-mentioned problems, to supplement slip casting in real time anti-settling Control method drops.
The present invention is achieved through the following technical solutions above-mentioned purpose, and a kind of shield-tunneling construction supplements slip casting anti-settling control in real time Method processed, comprising:
1.1 apertures: shield cutter 1 driving in place, 5 assembly of section of jurisdiction after the completion of, it is necessary to when section of jurisdiction 5 is in shield shell 2 In top drilling, and in position of opening mounting ball valve 12;
1.2 configuration waterglass slurries: aperture simultaneously, starch preparing bucket 10 and waterglass in equipment bridge location placement location waterglass Starch grouting pump 9;
1.3 adapter tubes: the shield tail brush of main synchronous grouting pipe is connected with the first endless tube piece, secondary synchronous grouting pipe and abjection shield tail The top ball valve of the second endless tube piece be connected, waterglass slurry Grouting Pipe is connected with the slip casting ball valve of adjacent third endless tube piece, general The liquid feeding end of main synchronous grouting pipe and secondary synchronous grouting pipe is connected to shield machine cement grout synchronous grouting case;
1.4 driving slip castings: shield machine starts to tunnel next ring, at the same open main synchronous grouting pipe, secondary tunneling synchronous mud injecting pump and Waterglass starches Grouting Pipe, opens ball valve at the top of section of jurisdiction, at this point, the main synchronous grouting pipe of shield machine is synchronous to the first of abjection shield tail Endless tube piece injects cement mortar, second endless tube piece top behind injection cement bonded sand of the secondary tunneling synchronous mud injecting pump to abjection shield tail behind Slurry, waterglass starch the waterglass slurry mixed liquor in grouting pump extract water glass paste preparing bucket and starch Grouting Pipe to phase by waterglass Injection waterglass slurry, two kinds of slurries mix behind in section of jurisdiction behind at the top of adjacent third endless tube piece, quick-hardening;
After 1.5 slip castings: closing ball valve, tear pulp feeding pipe open and cleaned, carry out subsequent construction repeatedly.
Preferably, to be that upper left, lower-left that shield machine carries are synchronous with three tunnel of upper right infuse the main synchronous grouting pipe in described 1.3 Slurry pipe;Secondary synchronous grouting pipe is the bottom right synchronous grouting pipe that shield machine carries.
Preferably, the proportion of the configuration waterglass slurry processes in described 1.2, waterglass and water is volume ratio 1:1.
Preferably, the slip casting process in described 1.4, setting time is 40s after the mixing of cement grout and waterglass slurries Left and right control, slurries injection rate are controlled according to practical grouting pressure, and grouting pressure should be determined according to the Water And Earth Pressures at place, and one As control within 5bar.
Preferably, the slip casting process in described 1.4, wherein the second endless tube piece includes two endless tube piece of D, B, third endless tube piece packet Two endless tube piece of E, C is included, if this slip casting selection is two endless tube piece of D, E, slip casting next time selects two ring of B, C, so follows Ring carries out.
The beneficial effects of the present invention are: this kind of construction method is effectively unified by synchronous grouting and second pulp feeding, by cementing Slurry is organically combined with waterglass, enhances the timeliness and validity of section of jurisdiction behind gap filling, eliminates traditional secondary note Slurry normally tunnels the interference that the two crossed construction generates with shield, and compared with traditional secondary grouting method, is not required to again individually Cement grout is configured, only individually pumping waterglass slurries substantially reduce grouting amount, accelerate construction speed, make full use of shield Structure machine equipment of itself improves the degree of automation, has saved manpower and material resources, has reached the good construction of effective control stratum settlement Effect, it is easy to operate, effect is obvious, and normal shield-tunneling construction is not influenced, it can be effectively controlled stratum settlement.
Detailed description of the invention
Fig. 1 is section of jurisdiction behind synchronous grouting device schematic diagram of the present invention;
Fig. 2 is that the present invention is adjacent mends slurry position view twice;
Fig. 3 is slurries filling effect figure in section of jurisdiction behind of the present invention.
In figure: 1, cutter head of shield machine, 2, shield shell, 3, shield tail brush, 4, surrounding soil layer, 5, section of jurisdiction, the 501, first endless tube piece, 502, the second endless tube piece, 503, third endless tube piece, 6, waterglass slurry Grouting Pipe, 7, secondary synchronous grouting pipe, 8, main synchronous grouting pipe, 9, waterglass starches grouting pump, and 10, waterglass is by preparing bucket, 11, shield machine cement grout synchronous grouting case, 12, ball valve.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
It please refers to shown in Fig. 1-3, a kind of shield-tunneling construction supplements slip casting anti-settling control method in real time, comprising:
1.1 apertures: shield cutter 1 driving in place, 5 assembly of section of jurisdiction after the completion of, it is necessary to when section of jurisdiction 5 is in shield shell 2 In top drilling, and in position of opening mounting ball valve 12, to prevent aperture after deviating from shield tail because of section of jurisdiction 5 from section of jurisdiction 5 being caused to be starched behind Liquid is gushed;
1.2 configuration waterglass slurries: aperture simultaneously, starch preparing bucket 10 and waterglass in equipment bridge location placement location waterglass Starch grouting pump 9;
1.3 adapter tubes: the shield tail brush 3 of main synchronous grouting pipe 8 is connected with the first endless tube piece 501, secondary synchronous grouting pipe 7 with take off The top ball valve 12 of the second endless tube piece 502 of shield tail is connected out, by waterglass slurry Grouting Pipe 6 and adjacent third endless tube piece 503 Slip casting ball valve 12 is connected, and it is same that the liquid feeding end of main synchronous grouting pipe 8 and secondary synchronous grouting pipe 7 is connected to shield machine cement grout Walk slip casting case 11;
1.4 driving slip castings: shield machine starts to tunnel next ring, at the same open main synchronous grouting pipe 8, secondary tunneling synchronous mud injecting pump and Waterglass starches Grouting Pipe 6, opens 5 top ball valve 12 of section of jurisdiction, at this point, the main synchronous grouting pipe 8 of shield machine is synchronous to abjection shield tail The first endless tube piece 501 inject cement mortar behind, secondary tunneling synchronous mud injecting pump to 502 top of the second endless tube piece of abjection shield tail behind Cement mortar is injected, waterglass starches the waterglass slurry mixed liquor in 9 extract water glass paste preparing bucket 10 of grouting pump and passes through water glass Glass starches Grouting Pipe 6, and to adjacent 503 top of third endless tube piece, injection waterglass slurry, two kinds of slurries mix behind in section of jurisdiction 5 behind, It realizes quick-hardening, fills gap in real time, reduce the loss of slurries and being scattered for the soil body, control the sedimentation of the top soil body;
After 1.5 slip castings: closing ball valve 12, tear pulp feeding pipe open and cleaned, carry out subsequent construction repeatedly.
As a kind of technical optimization scheme of the invention, the main synchronous grouting pipe 8 in described 1.3 is the left side that shield machine carries Upper, three road synchronous grouting pipe of lower-left and upper right;Secondary synchronous grouting pipe 7 is the bottom right synchronous grouting pipe that shield machine carries, and can be incited somebody to action Synchronous grouting and second pulp feeding are effectively unified, and cement injection and waterglass are organically combined, section of jurisdiction behind gap is enhanced and fills out The timeliness and validity filled, eliminate traditional secondary slip casting and shield normally tunnels the interference that the two crossed construction generates.
As a kind of technical optimization scheme of the invention, configuration waterglass slurry processes in described 1.2, waterglass and water Proportion be volume ratio 1:1 so that waterglass slurry preparation effect it is more preferable.
As a kind of technical optimization scheme of the invention, slip casting process in described 1.4, cement grout and waterglass slurries Mixing after setting time be 40s or so control, slurries injection rate is controlled according to practical grouting pressure, and grouting pressure should be according to institute Water And Earth Pressures at place determine that general control is within 5bar, so that cement grout and the mixing of waterglass slurries are more abundant.
As a kind of technical optimization scheme of the invention, slip casting process in described 1.4, wherein the second endless tube piece 502 wraps Two endless tube piece of D, B is included, third endless tube piece 503 includes two endless tube piece of E, C, if this slip casting selection is two endless tube piece of D, E, Slip casting next time selects two ring of B, C, and so circulation carries out, and realizes cycle operation.
For the present invention when implementing, detailed process is as follows:
Injecting paste material (especially waterglass) and grouting equipment (should be especially respectively suitable for synchronous grouting pipe before slip casting With the casting head of waterglass pump line specification) prepare enough stand-by, waterglass slurry Grouting Pipe 6, secondary synchronous grouting pipe 7 and main synchronous grouting Pipe 8 should check its fastness after connecting, lining segment 5 is deviate from before shield shell 2, it is necessary to install ball valve 12 and close ball valve 12, the second endless tube piece 502 and adjacent third endless tube piece 503 after deviating from shield shell 2 carry out note dual slurry operation, utilize shield Machine pair synchronous grouting pipe 7 individually carries out the radial water filling cement mortar in top to the second endless tube piece 502 of abjection shield tail, while adjacent The third endless tube piece 503 of section of jurisdiction behind injects waterglass slurries using waterglass slurry grouting pump 9, starches cement mortar and waterglass In section of jurisdiction, 5 gap location is sufficiently mixed behind, this process is uninterruptedly constructed with shield driving, if D, E two of this slip casting selection Endless tube piece, then slip casting next time selects two ring of B, C, and so circulation carries out, and sets water according to the Water And Earth Pressures of driving surrounding soil layer 4 The grouting pressure of glass paste grouting pump 9 and secondary synchronous grouting pipe 7, general pressure is no more than 5bar, when close to whole injection pressure power, drop Low injection speed, in order to avoid pipe ring structure is caused to damage;Cement mortar starches with waterglass and mixes simultaneously fast reaction behind in section of jurisdiction 5 Solidification, after having infused at one, it is necessary to which timely ejected wash water glass paste Grouting Pipe 6, secondary synchronous grouting pipe 7 and main synchronous grouting pipe 8 are prevented Only plugging removes ball valve 12, injected hole, whole process company of need in shield tunneling process is blocked after tearing open after waiting slurries sufficiently to solidify It is continuous uninterrupted.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (5)

1. a kind of shield-tunneling construction supplements slip casting anti-settling control method in real time, it is characterised in that:
1.1 apertures: shield cutter (1) driving in place, section of jurisdiction (5) it is assembled after the completion of, it is necessary to be in shield shell (2) in section of jurisdiction (5) In top drilling when interior, and in position of opening mounting ball valve (12);
1.2 configuration waterglass slurries: aperture simultaneously, equipment bridge location placement location waterglass slurry preparing bucket (10) and waterglass starch Grouting pump (9);
1.3 adapter tubes: the shield tail brush (3) of main synchronous grouting pipe (8) is connected with the first endless tube piece (501), secondary synchronous grouting pipe (7) It is connected with the top ball valve (12) of the second endless tube piece (502) of abjection shield tail, by waterglass slurry Grouting Pipe (6) and adjacent third ring The slip casting ball valve (12) of section of jurisdiction (503) is connected, and the liquid feeding end of main synchronous grouting pipe (8) and secondary synchronous grouting pipe (7) is all connected with To shield machine cement grout synchronous grouting case (11);
1.4 driving slip castings: shield machine starts to tunnel next ring, while opening main synchronous grouting pipe (8), secondary tunneling synchronous mud injecting pump and water Glass paste Grouting Pipe (6) opens ball valve (12) at the top of section of jurisdiction (5), at this point, the main synchronous grouting pipe (8) of shield machine is synchronous to de- The first endless tube piece (501) of shield tail injects cement mortar, second endless tube piece of the secondary tunneling synchronous mud injecting pump to abjection shield tail behind out (502) injection cement mortar, waterglass starch the waterglass slurry in grouting pump (9) extract water glass paste preparing bucket (10) behind at top Mixed liquor and third endless tube piece (503) the top behind injection waterglass slurry that Grouting Pipe (6) Xiang Xianglin is starched by waterglass, two kinds Slurries mix behind in section of jurisdiction (5), quick-hardening;
After 1.5 slip castings: closing ball valve (12), tear pulp feeding pipe open and cleaned, carry out subsequent construction repeatedly.
2. a kind of shield-tunneling construction according to claim 1 supplements slip casting anti-settling control method in real time, it is characterised in that: institute Stating the main synchronous grouting pipe (8) in 1.3 is the three road synchronous grouting pipe of upper left, lower-left and upper right that shield machine carries;The synchronous note of pair Slurry pipe (7) is the bottom right synchronous grouting pipe that shield machine carries.
3. a kind of shield-tunneling construction according to claim 1 supplements slip casting anti-settling control method in real time, it is characterised in that: institute State the configuration waterglass slurry processes in 1.2, the proportion of waterglass and water is volume ratio 1:1.
4. a kind of shield-tunneling construction according to claim 1 supplements slip casting anti-settling control method in real time, it is characterised in that: institute The slip casting process in 1.4 is stated, setting time is 40s control, slurries injection rate root after the mixing of cement grout and waterglass slurries Factually border grouting pressure controls, and grouting pressure should be determined according to the Water And Earth Pressures at place, controls within 5bar.
5. a kind of shield-tunneling construction according to claim 1 supplements slip casting anti-settling control method in real time, it is characterised in that: institute The slip casting process in 1.4 is stated, wherein the second endless tube piece (502) includes two endless tube piece of D, B, third endless tube piece (503) includes E, C two Endless tube piece, if this slip casting selection is two endless tube piece of D, E, slip casting next time selects two ring of B, C, and so circulation carries out.
CN201710398588.4A 2017-05-31 2017-05-31 A kind of shield-tunneling construction supplements slip casting anti-settling control method in real time CN107120121B (en)

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CN107642364B (en) * 2017-09-12 2019-05-17 粤水电轨道交通建设有限公司 Tunneling boring mud jacking shield construction method in rich water rock stratum under sensitivity building
CN107503770A (en) * 2017-10-13 2017-12-22 中铁三局集团有限公司 A kind of duct pieces of shield tunnel secondary grouting method
CN108331597A (en) * 2018-01-22 2018-07-27 中建市政工程有限公司 A kind of duct pieces of shield tunnel grouting behind shaft or drift lining construction method
CN110206555A (en) * 2019-07-09 2019-09-06 中建五局土木工程有限公司 A kind of shield driving method
CN110566233A (en) * 2019-09-20 2019-12-13 成龙建设集团有限公司 method for duct piece wall post-grouting in shield tunnel construction of full-section hard rock stratum

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