CN203347799U - Shield tunneling machine capable of achieving three-dimensional grouting - Google Patents
Shield tunneling machine capable of achieving three-dimensional grouting Download PDFInfo
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- CN203347799U CN203347799U CN 201320324026 CN201320324026U CN203347799U CN 203347799 U CN203347799 U CN 203347799U CN 201320324026 CN201320324026 CN 201320324026 CN 201320324026 U CN201320324026 U CN 201320324026U CN 203347799 U CN203347799 U CN 203347799U
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- shield
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- grouting
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Abstract
The utility model relates to a shield tunneling machine capable of achieving three-dimensional grouting. The shield tunneling machine capable of achieving three-dimensional grouting resolves the problems of collapse of a front soil body, stratum loss of the soil body around a shield and land subsidence in the process of construction. According to the technical scheme, the shield tunneling machine capable of achieving three-dimensional grouting comprises a shield body, a shield tunneling cutter head arranged on the front end surface of the shield body, and a set of pipe pieces arranged in the shield body and connected into a whole. The shield tunneling machine capable of achieving three-dimensional grouting is characterized in that a circle of pre-grouting holes are evenly formed in the edge of the shield tunneling cutter head, the grouting direction of each pre-grouting hole is parallel with the axis of the shield body, a circle of shield body grouting holes are evenly formed in the lateral wall of the middle of the shield body, and the axes of the shield body grouting holes are intersected at one point of the axis of the shield body. The shield tunneling machine capable of achieving three-dimensional grouting is suitable for shield excavation under the complex environment work conditions of a multi-line small clear distance, shallow earthing, small clear distance side penetration, near-distance downward penetration, strata cross rivers, silt strata and the like.
Description
Technical field
The utility model relates to a kind of shield machine, a kind of shield machine that can realize three-dimensional slip casting particularly, be mainly used in multi-thread little clear distance, shallow earthing, little clear distance side wear, closely wear down, cross cross the river in river and the complex environment operating mode such as sandy silt soil stratum under shield driving.
Background technology
In China, shield method, with its superiority such as face sound is little over the ground, safety is high, is widely used in underground engineering construction.
Because the digging diameter of cutter head of shield machine is greater than the section of jurisdiction external diameter, pipe sheet assembling complete and deviate from the shield tail after, and form the gap of backbreaking between the soil body, if the gap of backbreaking can not get timely filling, certainly will cause stratum deformation, make that adjacent earth's surface is built, structure sedimentation or tunnel skew itself.Therefore, slip casting is requisite key auxiliary engineering method in shield method, and reasonably the construction technology selection is that Shield Construction Method Used safety guarantees smoothly.Conventional shield grouting mainly comprises shield tail synchronous grouting and section of jurisdiction secondary grouting, but wear in multi-thread little clear distance, shallow earthing, little clear distance side, closely wear down, cross cross the river in river and the complex environment operating mode such as sandy silt soil stratum under during shield driving, conventional shield grouting is difficult to meet engineering safety and controls requirement.
Summary of the invention
The technical problems to be solved in the utility model is: for multi-thread little clear distance, closely side is worn (under wear), crossed shield driving under the complex environment operating modes such as rivers and sandy silt soil stratum, for solving caving in and Stratum Loss and the surface subsidence problem of shield structure surrounding soil of in work progress the place ahead soil body, provide a kind of shield machine that can realize three-dimensional slip casting.
The technical scheme that the utility model adopts is: the shield machine that can realize three-dimensional slip casting, comprise the shield body, be installed on the shield cutter of this shield body front end face, and be positioned at this shield body and be linked to be one group of whole section of jurisdiction, it is characterized in that: described shield cutter edge evenly arranges a circle pre-grouting hole, and the slip casting direction in each pre-grouting hole is parallel to the shield body axis and arranges; A circle shield body injected hole evenly is set, a bit on the shield body axis of the axes intersect of each shield body injected hole on the sidewall of described shield body middle part.
Each shield body injected hole is positioned at same plane, and described shield body axis is perpendicular to this plane.
The number of described shield body injected hole is eight.
Every endless tube sheet is spliced by six section of jurisdiction pieces, and all offers a double hole for hoist of doing injected hole on each section of jurisdiction piece.
Except the section of jurisdiction piece for binding, all the other each piece section of jurisdiction pieces are all set up two section of jurisdiction injected holes, and the slip casting direction of each section of jurisdiction injected hole is arranged perpendicular to the shield body axis.
Described hole for hoist and section of jurisdiction injected hole are uniformly distributed on the annular sidewall of each endless tube sheet.
The number in described pre-grouting hole is 16.
The beneficial effects of the utility model are: 1, the utility model is on the basis of existing shield machine, set up the pre-grouting hole, on the sidewall of shield body middle part, a circle shield body injected hole evenly is set simultaneously, thereby greatly reduced, shield body the place ahead soil body caves in and Stratum Loss and the surface settlement of shield structure surrounding soil, can avoid at multi-thread little clear distance, shallow earthing, closely side is worn, closely wear down, cross to cross the river in river and the complex environment operating mode such as sandy silt soil stratum under the shield rotating that may meet in shield driving, floating, water burst, gush mud, all multi-risk Systems such as the excessive and otch roof fall of ground settlement.2, set up the section of jurisdiction injected hole on section of jurisdiction, compared to prior art, its slip casting effect is further enhanced.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, the present embodiment comprises shield body 1, is installed on the shield cutter 2 of this shield body front end face, and is positioned at one group of section of jurisdiction 3 that this shield body is linked to be integral body.
It is 16 that described shield cutter 2 edges evenly arrange pre-grouting hole number in circle pre-grouting hole this example of 4(), the slip casting direction in each pre-grouting hole 4 is parallel to shield body 1 axis arranged; When otch generation roof fall with while subsiding, can, by pre-grouting hole 4 soil layer pressure injection slurries forwards, to shield cutter 2 the place ahead soil bodys, reinforce improvement.
It is eight that shield body injected hole number in one this example of circle shield body injected hole 5(evenly is set on described shield body 1 middle part sidewall), a bit on shield body 1 axis of the axes intersect of each shield body injected hole 5, and each shield body injected hole 5 is positioned at same plane, described shield body 1 axis is perpendicular to this plane; In emergency circumstances, can be by each shield body injected hole 5 to shield structure surrounding pressure injection slurries or plugging material, prevent stratum in the multiple track tunnel work progress because of settlement of stratum that repeatedly disturbance produces.
Every endless tube sheet 3 is spliced by six section of jurisdiction pieces, and all offer a double hole for hoist 6 of doing injected hole on each section of jurisdiction piece, simultaneously except the section of jurisdiction piece for binding (piece binds), all the other each piece section of jurisdiction pieces are all set up two section of jurisdiction injected holes 7, and the slip casting direction of each section of jurisdiction injected hole 7 is perpendicular to shield body 1 axis arranged (now on every endless tube sheet, have 16 injected holes, wherein six is the double hole for hoist of doing injected hole); Described hole for hoist 6 and section of jurisdiction injected hole 7 are positioned at same plane, and take shield body 1 axis and be uniformly distributed on the annular sidewall of each endless tube sheet 3 as the center of circle; Than many 10 injected holes of prior art, to guarantee carrying out comprehensive slip casting in the tunnel surrounding, improve slip casting effect.
In practical application, at first according to aforementioned structure, existing shield machine is transformed, shield launching propellings of going into the well, and carry out pre-grouting by 4 pairs, eight the pre-grouting holes shield cutter 2 the place ahead soil bodys on shield cutter 2, with the reinforcing that realizes the soil body, improve.In emergency circumstances (as ground settlement swashs acute the increasing, a large amount of faulting of slab ends in tunnel leak etc. in advance), utilize shield body injected hole 5 to shield structure surrounding pressure injection slurries or plugging material, prevent stratum in the multiple track tunnel work progress because of settlement of stratum that repeatedly disturbance produces.After the shield tail of shield body 1 is deviate from section of jurisdiction 3, utilize hole for hoist 6 and section of jurisdiction injected hole 7 to carry out comprehensive slip casting to the tunnel surrounding, fill stratum, improve the tunnel non-deformability and reduce ground settlement.After the shield structure passes through complex environment safely, receive and hang out (shield machine split from shield structure downhole receiving being hung out).Injecting paste material and pressure can be according to the soil layer situations, and groundwater pressure and engineering actual conditions are selected.
The present embodiment by comprehensive enhancing slip casting effectively to control shield structure periphery formation stability, thereby reduced the engineering safety risk.
Claims (7)
1. the shield machine that can realize three-dimensional slip casting, comprise shield body (1), be installed on the shield cutter (2) of this shield body front end face, and be positioned at this shield body and be linked to be whole one group of section of jurisdiction (3), it is characterized in that: described shield cutter (2) edge evenly arranges a circle pre-grouting hole (4), and the slip casting direction in each pre-grouting hole (4) is parallel to shield body (1) axis arranged; On the sidewall of described shield body (1) middle part, a circle shield body injected hole (5) evenly is set, a bit on shield body (1) axis of the axes intersect of each shield body injected hole (5).
2. the shield machine that can realize three-dimensional slip casting according to claim 1, it is characterized in that: each shield body injected hole (5) is positioned at same plane, and described shield body (1) axis is perpendicular to this plane.
3. the shield machine that can realize three-dimensional slip casting according to claim 1 and 2, it is characterized in that: the number of described shield body injected hole (5) is eight.
4. the shield machine that can realize three-dimensional slip casting according to claim 1 and 2, it is characterized in that: every endless tube sheet (3) is spliced by six section of jurisdiction pieces, and all offers a double hole for hoist (6) of doing injected hole on each section of jurisdiction piece.
5. the shield machine that can realize three-dimensional slip casting according to claim 4, it is characterized in that: except the section of jurisdiction piece for binding, all the other each piece section of jurisdiction pieces are all set up two section of jurisdiction injected holes (7), and the slip casting direction of each section of jurisdiction injected hole (7) is perpendicular to shield body (1) axis arranged.
6. the shield machine that can realize three-dimensional slip casting according to claim 5, it is characterized in that: described hole for hoist (6) and section of jurisdiction injected hole (7) are uniformly distributed on the annular sidewall of each endless tube sheet (3).
7. the shield machine that can realize three-dimensional slip casting according to claim 1 and 2, it is characterized in that: the number in described pre-grouting hole (4) is 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320324026 CN203347799U (en) | 2013-06-06 | 2013-06-06 | Shield tunneling machine capable of achieving three-dimensional grouting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320324026 CN203347799U (en) | 2013-06-06 | 2013-06-06 | Shield tunneling machine capable of achieving three-dimensional grouting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203347799U true CN203347799U (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320324026 Expired - Lifetime CN203347799U (en) | 2013-06-06 | 2013-06-06 | Shield tunneling machine capable of achieving three-dimensional grouting |
Country Status (1)
| Country | Link |
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| CN (1) | CN203347799U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291312A (en) * | 2013-06-06 | 2013-09-11 | 中国水电顾问集团华东勘测设计研究院 | Shield tunneling machine capable of realizing three-dimensional grouting |
| CN108756910A (en) * | 2018-05-13 | 2018-11-06 | 中铁十六局集团北京轨道交通工程建设有限公司 | A kind of intelligent early-warning formula earth pressure balanced shield, EPBS pre-grouting device and construction method |
| CN108868799A (en) * | 2018-08-03 | 2018-11-23 | 中国电建集团铁路建设有限公司 | A kind of earth pressure balanced shield, EPBS is synchronous to infuse mud construction and construction auxiliary system |
-
2013
- 2013-06-06 CN CN 201320324026 patent/CN203347799U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291312A (en) * | 2013-06-06 | 2013-09-11 | 中国水电顾问集团华东勘测设计研究院 | Shield tunneling machine capable of realizing three-dimensional grouting |
| CN108756910A (en) * | 2018-05-13 | 2018-11-06 | 中铁十六局集团北京轨道交通工程建设有限公司 | A kind of intelligent early-warning formula earth pressure balanced shield, EPBS pre-grouting device and construction method |
| CN108868799A (en) * | 2018-08-03 | 2018-11-23 | 中国电建集团铁路建设有限公司 | A kind of earth pressure balanced shield, EPBS is synchronous to infuse mud construction and construction auxiliary system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131218 Effective date of abandoning: 20160127 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20131218 Effective date of abandoning: 20160127 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |