CN111878100A - Screw machine anti-gushing structure and method for shield construction - Google Patents
Screw machine anti-gushing structure and method for shield construction Download PDFInfo
- Publication number
- CN111878100A CN111878100A CN202010810923.9A CN202010810923A CN111878100A CN 111878100 A CN111878100 A CN 111878100A CN 202010810923 A CN202010810923 A CN 202010810923A CN 111878100 A CN111878100 A CN 111878100A
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- Prior art keywords
- tray
- belt
- shield
- guide cabin
- slurry
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- 238000010276 construction Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000002002 slurry Substances 0.000 claims abstract description 33
- 239000010985 leather Substances 0.000 claims abstract description 16
- 238000003466 welding Methods 0.000 claims abstract description 6
- 239000002689 soil Substances 0.000 claims description 19
- 230000003137 locomotive effect Effects 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 2
- 239000002893 slag Substances 0.000 abstract description 12
- 108010066278 cabin-4 Proteins 0.000 description 14
- 238000004140 cleaning Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/124—Helical conveying means therefor
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to a screw machine anti-gushing structure and a method for shield construction, which comprises a belt conveyer, dovetail baffles arranged at two sides of the belt conveyer, a shield screw machine gate facing the belt conveyer, and a guide cabin, wherein the guide cabin is formed by welding an inclined bottom plate, a back plate and two side plates; a leather curtain is arranged at the front opening of the guide cabin, and the top of the leather curtain is fixed; by adopting the technical scheme, the slag and/or the slurry fall into the guiding cabin through the gate of the shield spiral machine, the slag and/or the slurry are guided to the conveying belt through the inclined bottom plate of the guiding cabin, the leather curtain at the front opening of the guiding cabin inhibits the splashing of the slurry, and the gushing strength is greatly reduced.
Description
Technical Field
The invention relates to the technical field of shield construction, in particular to a screw machine anti-gushing structure and a screw machine anti-gushing method for shield construction.
Background
In the advancing process of shield construction, when a water-rich stratum (such as a middle weathered or slightly weathered stratum in fracture water development) is encountered, a high-pressure water body passes through the soil bin and the screw conveyor to form concentrated seepage flow, particles in the soil bin are driven to surge together, and the particles flow out from a gate of the screw conveyor, a large amount of muddy water seriously influences a working area between a shield tail and an equipment bridge, the slag cleaning amount is large, the consumed time is long, and the construction progress is seriously influenced.
The occurrence of gushing not only affects the normal construction dumping and the control of the pressure in the soil bin, but also excessively brings out soil and sand around the excavation surface in serious cases, thereby causing over excavation and causing construction accidents such as surface subsidence and subsidence.
In the prior art, a gate of a shield spiral machine faces a slag conveying belt, when no gushing occurs, slag falls onto the conveying belt from the gate of the shield spiral machine, and dovetail baffles arranged on two sides of the conveying belt can prevent the edge of the slag from falling to an area outside the conveying belt in the falling process, as shown in attached figures 1 and 2; when gushing occurs, slurry gushes out from a gate of the shield screw machine, splashes around and gushes out, dovetail baffles arranged on two sides of a conveying belt hardly play a role in blocking, and at present, any precautionary technical measure aiming at the gushing occurrence is not available at the gate of the shield screw machine.
Disclosure of Invention
The invention aims to solve the technical problem of making up the defects of the prior art and provides a screw machine anti-gushing structure and a screw machine anti-gushing method for shield construction.
To solve the technical problems, the invention is realized by the following technical scheme:
the utility model provides a structure of gushing is prevented to screw machine for shield structure construction, includes belt conveyors, sets up at the forked tail baffle of belt conveyors both sides and the shield screw machine gate that faces belt conveyors, characterized by: the guide cabin is formed by welding an inclined bottom plate, a rear plate and two side plates, the top and the front of the guide cabin are in an open shape, the front opening of the guide cabin faces the conveying direction of the belt conveying device, the top opening of the guide cabin is connected with a gate of the shield spiral machine, triangular plates are welded on the two side plates of the guide cabin, and the guide cabin is fixed on the dovetail baffle plate through the triangular plates in a welding mode; a leather curtain is arranged at the front opening of the guide cabin, and the top of the leather curtain is fixed.
Furthermore, the included angle between the inclined bottom plate and the rear plate of the guide cabin is 115-120 degrees.
Furthermore, a connecting flange is arranged at the opening of the top of the guide cabin and used for being in sealing connection with a gate of the shield spiral machine.
The device further comprises a tray and a spiral conveyor, wherein the tray is arranged below the belt conveying device and comprises a containing groove and an outlet communicated with the containing groove; the spiral conveyor is arranged beside the belt conveying device and comprises a receiving hopper and a conveying pipe, slurry flowing out of the outlet of the tray falls into the receiving hopper of the spiral conveyor, and the spiral conveyor is used for conveying the slurry in the receiving hopper to the conveying belt in front of the guide cabin.
Furthermore, a plurality of hanging holes are formed in the tray, and the tray is fixed to the adjacent equipment through the hanging holes.
Further, the front part of the tray is positioned below the guide cabin, and the tail part of the tray is positioned below the rear part of the belt conveyer.
A blowout prevention method adopting the screw machine blowout prevention structure for shield construction comprises the following steps:
s1: the muck and/or the mud falls into the guide cabin through a gate of the shield spiral machine;
s2: the residue soil and/or slurry continuously falls down along the inclined bottom plate through self weight, pushes open the leather curtain, and falls onto a conveying belt of the belt conveying device through a front opening of the guide cabin;
s3: the belt conveying device conveys the muck and/or the slurry into a soil hopper of the electric locomotive.
Further, the method also comprises the following steps:
s4: the slurry which is not conveyed into the electric locomotive soil hopper falls into the tray;
s5: the slurry in the tray flows out of a receiving hopper of the screw conveyor through an outlet;
s6: the screw conveyor conveys the slurry in the receiving hopper to a conveying belt in front of the guide cabin.
The invention can achieve the following beneficial effects:
1) the structure of a shield screw machine gate, namely a slag hole, is improved, slag and/or slurry fall into a guide cabin through the shield screw machine gate, the slag and/or slurry are guided to a conveying belt through an inclined bottom plate of the guide cabin, and a leather curtain at the front opening of the guide cabin inhibits the splashing of the slurry, so that the gushing strength is greatly reduced;
2) the mud which is not conveyed into the electric locomotive soil bucket falls into the tray, flows out of the tray outlet into the receiving hopper of the screw conveyor, is conveyed to the conveying belt through the screw conveyor and then is conveyed into the electric locomotive soil bucket, so that the cleaning amount of silt is greatly reduced, the cleaning strength of workers is reduced, and the construction efficiency is improved;
3) effectively prevent gushing the shield driver of being convenient for and master the volume of digging out, avoid arousing the excessive digging.
Drawings
FIG. 1 is a schematic front view of the prior art;
FIG. 2 is a view in the direction A of FIG. 1;
FIG. 3 is a schematic perspective view of an embodiment of the present invention;
FIG. 4 is a schematic front view of an embodiment of the present invention;
FIG. 5 is a view from the direction B of FIG. 4;
FIG. 6 is a perspective view of a pod in an embodiment of the invention;
FIG. 7 is a front view of a pod in an embodiment of the invention;
FIG. 8 is a left side view of the pod in an embodiment of the present invention;
FIG. 9 is a schematic view of a guide cabin and a leather curtain in an embodiment of the invention;
FIG. 10 is a schematic view of a tray in an embodiment of the invention;
in the figure: 1-a belt transmission device, 2-a dovetail baffle, 3-a shield screw machine gate,
4-a guide cabin, 41-an inclined bottom plate, 42-a side plate, 43-a rear plate, 44-a connecting flange, 45-a triangular plate, 46-a leather curtain, 5-a tray, 51-a containing groove, 52-an outlet, 53-a hanging hole and 6-a spiral conveyor.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Examples
As shown in fig. 3 to 5, a screw machine anti-gushing structure for shield construction includes a belt conveyer 1, dovetail baffles 2 provided at both sides of the belt conveyer 1, and a shield screw machine gate 3 facing the belt conveyer 1, and further includes a guide cabin 4, a tray 5, and a screw conveyor 6.
As shown in fig. 6-9, the guide cabin 4 is formed by welding an inclined bottom plate 41, a back plate 43 and two side plates 42, an included angle between the inclined bottom plate 41 and the back plate 43 of the guide cabin 4 is 115-120 °, the top and the front of the guide cabin 4 are open, a front opening of the guide cabin 4 faces the conveying direction of the belt conveying device 1, a connecting flange 44 is arranged at a top opening of the guide cabin 4, the connecting flange 44 is used for being hermetically connected with the shield spiral machine gate 3, triangular plates 45 are welded on the two side plates 42 of the guide cabin 4, and the guide cabin 4 is welded and fixed on the dovetail baffle 2 through the triangular plates 45; a leather curtain 46 is arranged at the front opening of the guide cabin 4, and the top of the leather curtain 46 is fixed.
The tray 5 is arranged below the belt conveyer 1, the tray 5 comprises a storage groove 51 and an outlet 52 communicated with the storage groove 51, as shown in fig. 10, a plurality of hanging holes 53 are arranged on the tray 5, and the tray 5 is fixed on adjacent equipment through the hanging holes 5; the front of the tray 5 is located below the guide cabin 4, and the rear of the tray 5 is located below the rear of the belt conveyor 1.
An auger 6 is arranged alongside the belt conveyor 1, the auger 6 comprising a receiving hopper for receiving the slurry flowing from the outlet 52 of the tray 5 and a conveying pipe, the auger 6 being adapted to convey the slurry in the receiving hopper onto the conveyor belt in front of the guide cabin 4.
The anti-blowout method of the anti-blowout structure of the screw machine for shield construction comprises the following steps:
s1: the muck and/or mud falls into the guide cabin 4 through the shield screw machine gate 3;
s2: the residue soil and/or slurry continuously falls down along the inclined bottom plate 41 by self weight, the leather curtain 46 is pushed open, and the residue soil and/or slurry falls onto a conveying belt of the belt conveying device 1 through a front opening of the guide cabin 4;
s3: the belt conveying device 1 conveys the muck and/or the slurry into a soil hopper of the electric locomotive;
s4: the slurry which is not conveyed into the electric locomotive soil hopper falls into the tray 5;
s5: the slurry in the tray 5 flows out through the outlet 52 into the receiving hopper of the screw conveyor 6;
s6: the screw conveyor 6 conveys the slurry in the receiving hopper to a conveying belt in front of the guide cabin 4.
The advantages of this embodiment:
1) the structure of a shield screw machine gate, namely a slag hole, is improved, slag and/or slurry fall into a guide cabin through the shield screw machine gate, the slag and/or slurry are guided to a conveying belt through an inclined bottom plate of the guide cabin, and a leather curtain at the front opening of the guide cabin inhibits the splashing of the slurry, so that the gushing strength is greatly reduced;
2) the mud which is not conveyed into the electric locomotive soil bucket falls into the tray, flows out of the tray outlet into the receiving hopper of the screw conveyor, is conveyed to the conveying belt through the screw conveyor and then is conveyed into the electric locomotive soil bucket, so that the cleaning amount of silt is greatly reduced, the cleaning strength of workers is reduced, and the construction efficiency is improved;
3) effectively prevent gushing the shield driver of being convenient for and master the volume of digging out, avoid arousing the excessive digging.
In the description of the present invention, words such as "inner", "outer", "upper", "lower", "front", "rear", etc., indicating orientations or positional relationships, are used for convenience in describing the present invention, and do not indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The above description is only one embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the spirit of the present invention.
Claims (8)
1. The utility model provides a structure of gushing is prevented to screw machine for shield structure construction, includes belt conveyors (1), sets up at forked tail baffle (2) of belt conveyors (1) both sides and the shield that faces belt conveyors (1) constructs screw machine gate (3), characterized by: the guide cabin (4) is formed by welding an inclined bottom plate (41), a rear plate (43) and two side plates (42), the top and the front of the guide cabin (4) are in an open shape, the front opening of the guide cabin (4) faces the conveying direction of the belt conveying device (1), the top opening of the guide cabin (4) is connected with a shield spiral machine gate (3), triangular plates (45) are welded on the two side plates (42) of the guide cabin (4), and the guide cabin (4) is fixed on the dovetail baffle (2) through the triangular plates (45) in a welding mode; a leather curtain (46) is arranged at the front opening of the guide cabin (4), and the top of the leather curtain (46) is fixed.
2. The screw machine anti-gushing structure for shield construction according to claim 1, characterized in that: the included angle between the inclined bottom plate (41) and the back plate (43) of the guide cabin (4) is 115-120 degrees.
3. The screw machine anti-gushing structure for shield construction according to claim 1, characterized in that: a connecting flange (44) is arranged at the top opening of the guide cabin (4), and the connecting flange (44) is used for being in sealing connection with the shield spiral machine gate (3).
4. The screw machine blowout prevention structure for shield construction according to any one of claims 1 to 3, characterized in that: the belt conveyor is characterized by further comprising a tray (5) and a screw conveyor (6), wherein the tray (5) is arranged below the belt conveyor (1), and the tray (5) comprises a storage groove (51) and an outlet (52) communicated with the storage groove (51); the spiral conveyor (6) is arranged beside the belt conveying device (1), the spiral conveyor (6) comprises a receiving hopper and a conveying pipe, slurry flowing out of an outlet (52) of the tray (5) falls into the receiving hopper of the spiral conveyor (6), and the spiral conveyor (6) is used for conveying the slurry in the receiving hopper to a conveying belt in front of the guide cabin (4).
5. The screw machine anti-gushing structure for shield construction according to claim 4, wherein: a plurality of hanging holes (53) are formed in the tray (5), and the tray (5) is fixed to adjacent equipment through the hanging holes (5).
6. The screw machine anti-gushing structure for shield construction according to claim 4, wherein: the front part of the tray (5) is positioned below the guide cabin (4), and the tail part of the tray (5) is positioned below the rear part of the belt conveying device (1).
7. A blowout prevention method using the screw machine blowout prevention structure for shield construction according to claims 1 to 6, characterized in that: the method comprises the following steps:
s1: the muck and/or mud falls into the guide cabin (4) through the shield screw machine gate (3);
s2: the residue soil and/or slurry continuously falls down along the inclined bottom plate (41) through self weight, the leather curtain (46) is ejected, and the residue soil and/or slurry falls onto a conveying belt of the belt conveying device (1) through a front opening of the guide cabin (4);
s3: the belt conveying device (1) conveys the muck and/or the slurry into a soil hopper of the electric locomotive.
8. The method of blowout prevention according to claim 7, wherein: also comprises the following steps:
s4: the slurry which is not conveyed into the electric locomotive soil hopper falls into the tray (5);
s5: the slurry in the tray (5) flows out to a receiving hopper of the screw conveyor (6) through an outlet (52);
s6: the screw conveyor (6) conveys the slurry in the receiving hopper to a conveying belt in front of the guide cabin (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010810923.9A CN111878100A (en) | 2020-08-13 | 2020-08-13 | Screw machine anti-gushing structure and method for shield construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010810923.9A CN111878100A (en) | 2020-08-13 | 2020-08-13 | Screw machine anti-gushing structure and method for shield construction |
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| Publication Number | Publication Date |
|---|---|
| CN111878100A true CN111878100A (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010810923.9A Pending CN111878100A (en) | 2020-08-13 | 2020-08-13 | Screw machine anti-gushing structure and method for shield construction |
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| CN (1) | CN111878100A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113250712A (en) * | 2021-06-17 | 2021-08-13 | 北京市政建设集团有限责任公司 | A novel screw machine prevents spouting structure for shield constructs construction |
| CN114198115A (en) * | 2022-02-15 | 2022-03-18 | 中铁隧道局集团路桥工程有限公司 | Anti-surging shield screw machine and method for applying same |
-
2020
- 2020-08-13 CN CN202010810923.9A patent/CN111878100A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113250712A (en) * | 2021-06-17 | 2021-08-13 | 北京市政建设集团有限责任公司 | A novel screw machine prevents spouting structure for shield constructs construction |
| CN114198115A (en) * | 2022-02-15 | 2022-03-18 | 中铁隧道局集团路桥工程有限公司 | Anti-surging shield screw machine and method for applying same |
| CN114198115B (en) * | 2022-02-15 | 2022-04-29 | 中铁隧道局集团路桥工程有限公司 | Anti-surging shield screw machine and method for applying same |
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