CN108442936B - Slag discharging shield machine for conveying belt - Google Patents
Slag discharging shield machine for conveying belt Download PDFInfo
- Publication number
- CN108442936B CN108442936B CN201810467134.2A CN201810467134A CN108442936B CN 108442936 B CN108442936 B CN 108442936B CN 201810467134 A CN201810467134 A CN 201810467134A CN 108442936 B CN108442936 B CN 108442936B
- Authority
- CN
- China
- Prior art keywords
- slag
- shield machine
- conveying pipeline
- container
- soil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002893 slag Substances 0.000 title claims abstract description 74
- 238000007599 discharging Methods 0.000 title claims abstract description 17
- 239000002689 soil Substances 0.000 claims abstract description 50
- 238000007789 sealing Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 abstract description 37
- 238000010276 construction Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 8
- 238000004062 sedimentation Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 238000010079 rubber tapping Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 2
- 230000004323 axial length Effects 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
-
- 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
Landscapes
- 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 discloses a slag discharging shield machine of a conveyer belt, which is characterized in that a slag conveying pipeline and a slag container are arranged in a shield shell of the shield machine, one end of the slag conveying pipeline is communicated with a soil cabin of the shield machine, the other end of the slag conveying pipeline is communicated with the slag container, and a conveyer belt is arranged in the slag conveying pipeline along the axial length of the slag conveying pipeline. The invention has the advantages that: compared with the earth pressure balance shield machine which adopts a screw conveyor to carry out slag tapping, the earth pressure balance shield machine can prevent the occurrence of gushing in the shield construction process, the maximum grain diameter of the slag soil can reach 20-50cm, and the plastic condition of the slag soil is not considered, so that the slag soil improvement is not needed in any stratum; compared with the slurry balance shield machine which adopts slurry circulation to slag, the slag discharging efficiency is high, the utilization rate of slurry is high, a slurry sedimentation tank is not needed to be built on the ground, the construction site is saved, and the pollution of a large amount of slurry to the environment is avoided.
Description
Technical Field
The invention belongs to the technical field of shield tunnels, and particularly relates to a slag discharging shield machine of a conveying belt.
Background
When the existing earth pressure balance shield machine adopts a screw conveyor to take out the muck in the earth cabin, a certain muck modifier is injected to modify the muck in order to enable the muck to smoothly pass through the screw conveyor and prevent the muck from being flushed out of the screw conveyor under the action of water pressure in the earth cabin when the muck cut by a cutter head of the shield machine has poor plasticity; when the particle size of the dregs is too large and cannot pass through the screw conveyor, the soil cabin has to be opened to take out the dregs with large particle size in a manual mode; for particles of comparable size relative to the screw conveyor gap, jamming can occur in the screw conveyor, thereby even causing the screw to twist off.
When the slurry balance shield machine adopts a slurry circulation method to take out the dregs in the soil cabin, the dregs with overlarge grain size cannot pass through a slurry circulation pipeline, and the situation that the soil cabin is opened to take out the dregs with large grain size in a manual mode is also faced; when crushing, the crushed gravel is seriously worn on a mud pump of a mud pipeline, equipment maintenance cost is high, when mud is adopted for circularly conveying dregs, a mud sedimentation tank needs to be built on the ground surface, the occupied area is occupied, and the mud has great pollution to the environment. The slurry is prepared from a plurality of materials (bentonite or other materials), and the electricity consumption and the water consumption are large.
The invention discloses a slag discharging mechanism of a shield machine and a slurry balance shield machine (application number: CN 105257305A), and provides a slag discharging device for the slurry balance shield machine, namely, a separation box body for separating slurry and gravel is designed to separate the gravel in the slurry during the construction process of the slurry balance shield, so that the slag discharging efficiency of the slurry balance shield machine is improved. However, this patent still requires the construction of a slurry sedimentation tank on the surface, thus posing problems such as shortage of sites and environmental impact of slurry. Meanwhile, the patent cannot be applied to an earth pressure balance shield machine. The device of this patent adopts bipolar screw conveyer to carry dregs from the soil bin to in the separation box, and adopts bipolar screw conveyer to carry out pressurize and prevent gushing, consequently, still face too big particle diameter and can't pass through bipolar screw conveyer to and dregs plastic property is poor when being difficult to adopt bipolar screw conveyer to carry dregs, and the problem such as the ability is difficult to guarantee of preventing gushing of bipolar screw conveyer.
The invention relates to a slag soil pressure maintaining pumping device of a soil pressure balance shield machine (application number: CN 104373130A), which is used for maintaining pressure through a mixed mode of soil pressure balance and slurry balance, and adopts similar slurry balance shield construction in a stratum where gushing easily occurs, but is still used as a screw conveyor for outputting slag soil from a soil cabin when the similar slurry balance shield construction is adopted, so that the problems that the slag soil with an excessive grain size cannot pass through the screw conveyor and the screw conveyor is blocked by the slag soil with a large grain size cannot be overcome, and a slurry sedimentation tank is required to be arranged on the ground surface in theory, and the problems of site tension, environmental influence of slurry and the like are solved.
Disclosure of Invention
According to the defects of the prior art, the invention provides the slag discharging shield machine with the conveying belt, which can realize free slag discharging and conveying of large-particle-size slag by arranging the slag conveying pipeline between the soil cabin and the slag container and arranging the conveying belt in the conveying pipeline.
The invention is realized by the following technical scheme:
the slag discharging shield machine of the conveyer belt is characterized in that a slag conveying pipeline and a slag container are arranged in a shield shell of the shield machine, one end of the slag conveying pipeline is communicated with a soil cabin of the shield machine, the other end of the slag conveying pipeline is communicated with the slag container, and a conveyer belt is arranged in the slag conveying pipeline along the axial through length of the slag conveying pipeline.
The front end of the conveying belt is positioned in the soil cabin, and the rear end of the conveying belt is positioned at the residue soil outlet of the residue soil conveying pipeline.
The cross section of the conveying belt is U-shaped, the U-shaped conveying belt comprises a conveying belt plane and enclosing flanges positioned on two sides of the conveying belt plane, and a plurality of transverse raised strips are arranged on the conveying belt plane at intervals.
The slag soil outlet of the slag soil conveying pipeline is communicated with the slag soil container in a sealing way, and a gate for controlling on-off is arranged at the slag soil outlet.
And a mud return pipe is led out of the muck container and is communicated into the soil cabin, and a mud return unidirectional flow controller is arranged in the mud return pipe.
And an exhaust hole switch is arranged at the joint of the mud return pipe and the residue soil container.
The muck container is a closed pressure container.
The invention has the advantages that: compared with the earth pressure balance shield machine which adopts a screw conveyor to carry out slag tapping, the earth pressure balance shield machine can prevent the occurrence of gushing in the shield construction process, the maximum grain diameter of the slag soil can reach 20-50cm, and the plastic condition of the slag soil is not required to be considered, so that the slag soil of any stratum is not required to be improved; compared with the slurry balance shield machine which adopts slurry circulation to slag, the slag discharging efficiency is high, the utilization rate of slurry is high, a slurry sedimentation tank is not needed to be built on the ground, the construction site is saved, and the pollution of a large amount of slurry to the environment is avoided.
Drawings
FIG. 1 is a schematic structural view of a conveyor belt slag-out shield machine in the invention;
fig. 2 is a schematic diagram of a working state of a slag discharging shield machine of a conveyor belt.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the following drawings, to facilitate understanding by those skilled in the art:
As shown in fig. 1-2, reference numerals 1-12 are respectively: the device comprises a shield machine 1, a shield shell 2, a soil cabin 3, a muck conveying pipeline 4, a conveying belt 5, a muck container 6, a gate 7, a slurry return pipe 8, a slurry return unidirectional flow controller 9, an exhaust hole switch 10, muck 11 and a muck outlet 12.
Examples: as shown in fig. 1 and 2, the embodiment specifically relates to a conveyor belt slag discharging shield machine, which can be an earth pressure balance shield machine or a slurry balance shield machine, the shield machine 1 further comprises a slag conveying pipeline 4 and a slag container 6 which are arranged in a shield shell 2 on the basis of the existing conventional structure, the slag conveying pipeline 4 is used for communicating a soil cabin 3 in the shield machine 1 with the slag container 6, and a conveyor belt 5 for conveying slag is further arranged in the slag conveying pipeline 4, so that a method of a screw conveyor (earth pressure balance shield machine) or a slurry circulation (slurry balance shield machine) which is adopted conventionally is replaced.
As shown in fig. 1 and 2, the muck conveying pipeline 4 is a pipe body with a certain diameter and is obliquely arranged, the muck inlet at the front end part of the muck conveying pipeline extends into the muck compartment 3 for taking muck 11, and the muck outlet 12 at the rear end part of the muck conveying pipeline is connected with one interface on the muck container 6, that is, the muck conveying pipeline 4 connects the muck compartment 3 with the muck container 6. In addition, a conveyor belt 5 is generally provided in the muck conveying pipe 4 along its axial direction, the front end of the conveyor belt 5 is installed in the earth bin 3 so as to take muck 11, and the rear end of the conveyor belt 5 is installed at the position of the muck outlet 12 so that muck 11 can fall into the muck container 6.
As shown in fig. 1 and 2, the conveyor belt 5 is specifically configured to convey the muck 11 from the soil bin 3 to the muck container 6, where the maximum particle size of the muck 11 can reach 20-50cm, the cross section of the conveyor belt 5 is "U" -shaped, and includes a conveyor belt plane and enclosure flanges located at two sides of the conveyor belt plane, where the enclosure flanges can prevent the muck 11 from falling to two sides, and in addition, a plurality of transverse raised strips are arranged at intervals on the conveyor belt plane, and the transverse raised strips can improve friction force on the surface of the conveyor belt 5 to prevent the muck 11 from sliding down. The conveyor belt 5 may be a metal crawler belt or a composite conveyor belt of canvas functional rubber according to the characteristics of the clinker 11.
As shown in fig. 1 and 2, the muck container 6 is a closed pressure container capable of bearing a certain pressure, the muck container 6 is in sealing connection with a muck outlet 12 on the muck conveying pipeline 4, a gate 7 is further arranged at the muck outlet 12, and the gate 7 can realize on-off control of the muck outlet 12. In addition, a mud backflow pipe 8 is led out from the muck container 6, the other end of the mud backflow pipe 8 is communicated into the soil cabin 3, a mud backflow unidirectional flow controller 9 is arranged in the mud backflow pipe 8, mud and muck can only flow back into the soil cabin 3 from the muck container 6 through the mud backflow unidirectional flow controller 9, and an exhaust hole switch 10 is further arranged at the joint of the mud backflow pipe 8 and the muck container 6, and the exhaust hole switch 10 can exhaust air in backflow mud.
As shown in fig. 1 and 2, the working method of the slag discharging shield machine of the conveyer belt in the embodiment comprises the following steps:
(1) In the construction process of the shield machine 1, a gate 7 on a muck outlet 12 at the end part of a muck conveying pipeline 4 is opened, the conveying speed of a conveying belt 5 is controlled according to the pressure condition in a soil cabin 3, muck 11 in the soil cabin 3 is conveyed into a muck container 6 through the muck outlet 12 by the conveying belt 5 to be stored, for example, when the pressure in the soil cabin 3 is smaller, the conveying speed of the conveying belt 5 is reduced, and when the pressure in the soil cabin 3 is larger, the conveying speed of the conveying belt 5 is increased;
(2) When a large amount of dregs are stored in the dregs container 6, a larger pressure is generated in the container cavity, the dregs 11 with larger particle size are deposited at the bottom of the dregs container 6, and mud in the dregs 11 enters the mud return pipe 8 under the action of the pressure, so that the mud return unidirectional flow controller 9 can play roles of controlling on-off and unidirectional flow; when the pressure in the soil cabin 3 drops sharply and the excavation surface is unstable, the mud backflow unidirectional flow controller 9 is controlled to be opened, so that the mud in the mud backflow pipe 8 can flow back into the soil cabin 3 for supplementing the mud, and the pressure in the soil cabin 3 is ensured to be kept balanced.
The beneficial effects of this embodiment lie in: compared with the earth pressure balance shield machine which adopts a screw conveyor to carry out slag tapping, the earth pressure balance shield machine can prevent the occurrence of gushing in the shield construction process, the maximum grain diameter of the slag soil can reach 20-50cm, and the plastic condition of the slag soil is not needed to be considered, so that the improvement of the slag soil is not needed; compared with the slurry balance shield machine which adopts slurry circulation to slag, the slag discharging efficiency is high, the utilization rate of slurry is high, a slurry sedimentation tank is not needed to be built on the ground, the construction site is saved, and the pollution of a large amount of slurry to the environment is avoided.
Claims (1)
1. The slag discharging shield machine of the conveyer belt is characterized in that a slag conveying pipeline and a slag container are arranged in a shield shell of the shield machine, one end of the slag conveying pipeline is communicated with a soil cabin of the shield machine, the other end of the slag conveying pipeline is communicated with the slag container, and a conveyer belt is arranged in the slag conveying pipeline along the axial through length of the slag conveying pipeline;
the front end of the conveying belt is positioned in the soil cabin, and the rear end of the conveying belt is positioned at a residue soil outlet of the residue soil conveying pipeline; the cross section of the conveying belt is U-shaped, the U-shaped conveying belt comprises a conveying belt plane and enclosing flanges positioned at two sides of the conveying belt plane, and a plurality of transverse raised strips are arranged on the conveying belt plane at intervals; the slag outlet of the slag conveying pipeline is communicated with the slag container in a sealing way, and a gate for controlling on-off is arranged at the slag outlet; a mud return pipe is led out of the muck container and is communicated into the soil cabin, and a mud return unidirectional flow controller is arranged in the mud return pipe; an exhaust hole switch is arranged at the joint of the mud return pipe and the residue soil container; the muck container is a closed pressure container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810467134.2A CN108442936B (en) | 2018-05-16 | 2018-05-16 | Slag discharging shield machine for conveying belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810467134.2A CN108442936B (en) | 2018-05-16 | 2018-05-16 | Slag discharging shield machine for conveying belt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108442936A CN108442936A (en) | 2018-08-24 |
| CN108442936B true CN108442936B (en) | 2024-05-03 |
Family
ID=63204220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810467134.2A Active CN108442936B (en) | 2018-05-16 | 2018-05-16 | Slag discharging shield machine for conveying belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108442936B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488324B (en) * | 2018-09-19 | 2021-04-02 | 中交第二航务工程局有限公司 | Intelligent mud gushing prevention system in excavation process of earth pressure shield machine |
| CN109611113A (en) * | 2019-01-09 | 2019-04-12 | 康明克斯(北京)环保技术有限公司 | A kind of earth pressure balanced shield, EPBS dregs continuous conveying equipment |
| CN112664214B (en) * | 2020-12-24 | 2022-06-21 | 广州轨道交通建设监理有限公司 | Pressure balance method for combining external air bag of earth pressure shield with slurry |
| CN114135310B (en) * | 2021-11-25 | 2023-11-21 | 盾构及掘进技术国家重点实验室 | Prevent gushing formula screw conveyer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005336717A (en) * | 2004-05-24 | 2005-12-08 | Nishimatsu Constr Co Ltd | Excavation earth carrying-out method of slurry shield construction method |
| CN203050720U (en) * | 2012-08-01 | 2013-07-10 | 秦皇岛天业通联重工股份有限公司 | Auxiliary slurry pressure maintaining system for earth pressure balance shield machine |
| CN104373130A (en) * | 2014-11-04 | 2015-02-25 | 中交第二航务工程局有限公司 | Muck pressure maintaining pumping device of earth pressure balance shield machine |
| CN104879133A (en) * | 2015-05-21 | 2015-09-02 | 中铁工程装备集团有限公司 | Double-mode shield tunneling machine |
| CN105257305A (en) * | 2015-09-25 | 2016-01-20 | 铁建重工新疆有限公司 | Slag discharging mechanism of shield tunneling machine and muddy water balance shield tunneling machine |
| CN208184743U (en) * | 2018-05-16 | 2018-12-04 | 华东交通大学 | A kind of conveyer belt is slagged tap shield machine |
-
2018
- 2018-05-16 CN CN201810467134.2A patent/CN108442936B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005336717A (en) * | 2004-05-24 | 2005-12-08 | Nishimatsu Constr Co Ltd | Excavation earth carrying-out method of slurry shield construction method |
| CN203050720U (en) * | 2012-08-01 | 2013-07-10 | 秦皇岛天业通联重工股份有限公司 | Auxiliary slurry pressure maintaining system for earth pressure balance shield machine |
| CN104373130A (en) * | 2014-11-04 | 2015-02-25 | 中交第二航务工程局有限公司 | Muck pressure maintaining pumping device of earth pressure balance shield machine |
| CN104879133A (en) * | 2015-05-21 | 2015-09-02 | 中铁工程装备集团有限公司 | Double-mode shield tunneling machine |
| CN105257305A (en) * | 2015-09-25 | 2016-01-20 | 铁建重工新疆有限公司 | Slag discharging mechanism of shield tunneling machine and muddy water balance shield tunneling machine |
| CN208184743U (en) * | 2018-05-16 | 2018-12-04 | 华东交通大学 | A kind of conveyer belt is slagged tap shield machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108442936A (en) | 2018-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108442936B (en) | Slag discharging shield machine for conveying belt | |
| CN204139227U (en) | Gas mixing pumping drainage type mine sump desilting machine | |
| CN108506009B (en) | Dregs transporting system of earth pressure balance shield machine | |
| CN111997631A (en) | Tunnel construction method and shield tunneling machine | |
| CN101526008A (en) | Rotary wing flowing type pipeline waste stone discharger | |
| CN115726806A (en) | Slag discharging system of slurry TBM dual-mode shield tunneling machine and switching slag discharging method thereof | |
| CN112610271B (en) | Drilling tank slurry backfilling device and method for coal mining subsidence area treatment | |
| CN208294531U (en) | A kind of slag-tapping system and shield machine | |
| CN103696451A (en) | Mine underground screw sump cleaner | |
| CN207048793U (en) | A kind of decompression type shield machine step by step | |
| CN105863666A (en) | Tunnel boring machine residue discharging device and trenchless tunnel boring machine provided with device | |
| CN213898988U (en) | Inclined shaft TBM slag tapping system | |
| CN113338988B (en) | Bimodulus entry driving machine of slagging tap and compound slag tapping system thereof | |
| CN110469363B (en) | Vertical sand silo sand discharging device capable of discharging materials continuously and stably | |
| CN101592040A (en) | Impact wind pressure type pipe waste rock discharge device | |
| CN201367917Y (en) | Impact wind pressure type pipeline waste rock removing device | |
| CN210993214U (en) | Negative pressure drainage mobile water-slag separating device | |
| CN208184743U (en) | A kind of conveyer belt is slagged tap shield machine | |
| CN110725683A (en) | Slurry circulation slag discharging system for shaft boring machine | |
| CN106014404A (en) | High-speed hard rock tunneling and mining integrated machine | |
| CN110538497A (en) | Negative pressure drainage mobile water-slag separating device | |
| CN211008646U (en) | Slurry circulation slag discharging system for shaft boring machine | |
| CN105523397B (en) | A kind of application method of hydraulic screw formula cabin bottom clearing machine | |
| CN205503144U (en) | Tunnel boring machine arranges sediment device and has device's non - excavation tunnel boring machine | |
| CN205875250U (en) | Novel shaft sump desilting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wei Huifen Inventor after: Huang Dawei Inventor after: Feng Qingsong Inventor after: Cai Guoqing Inventor after: Tang Baizan Inventor after: Tu Wenbo Inventor before: Huang Dawei Inventor before: Feng Qingsong Inventor before: Tang Baizan Inventor before: Tu Wenbo Inventor before: Wei Huifen Inventor before: Zhang Xiling Inventor before: Shuai Jun Inventor before: Cai Guoqing Inventor before: Xu Yangshaojun |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |