CN109736812A - A kind of slag tapping method during shaft excavation - Google Patents
A kind of slag tapping method during shaft excavation Download PDFInfo
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- CN109736812A CN109736812A CN201811485580.2A CN201811485580A CN109736812A CN 109736812 A CN109736812 A CN 109736812A CN 201811485580 A CN201811485580 A CN 201811485580A CN 109736812 A CN109736812 A CN 109736812A
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- mud
- well
- deslagging
- pump
- slag
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Abstract
Slag tapping method the invention belongs to Construction Technique of Shaft field, during a kind of disclosed shaft excavation.It is to be slagged tap using the hybrid well-flushing dreg removing systems of mouth pump air-breathing act that absorb more；Deslagging device is installed first, slush pump is installed in the three arm type driving rack of development machine；Multiple absorption mouths are installed to the cutterhead bottom of development machine in uniform way by pipeline；Pump air-breathing lifts hybrid well-flushing deslagging and mud is discharged in surface mud clarifier-tank under the pump-absorb action of slush pump；Well-flushing and deslagging are carried out by the gas lift method of injecting compressed air；The present invention overcomes the difficulties of slagging tap that the prior art occurs, and the technical issues of low efficiency, improve project progress.
Description
Technical field
Slag tapping method the invention belongs to Construction Technique of Shaft field, in particular to during a kind of shaft excavation.
Background technique
In recent years, as the land resource in city is in short supply and Planning Principles upgrade, urban underground space field is developed very
Rapidly.In urban underground space engineering, vertical deep-well engineering because the advantages that its occupied area is small, space utilization rate is high project by
Step increases.Vertical shaft is slagged tap mode at present, mainly uses direct circulation+air lift type pumping and washing process, by well in drilling process
Water filling is rotated using cutterhead and mud is driven to rotate, and mud brill is discharged into mud pit, and mud passes through after clarifier-tank precipitation and purification again
It flows into well, and flushing work face, after creeping into certain depth, could pass through gas-liquid mixture pressure difference is that power carries out deslagging.It deposits
In the early stage drilling well gas-liquid pressure difference it is insufficient and can not deslagging the problem of.
Summary of the invention
In order to solve the above technical problems, the present invention proposes the slag tapping method during a kind of shaft excavation.It solves just
Phase drilling well gas-liquid pressure difference is insufficient and can not deslagging the problem of.
To achieve the goals above, the technical scheme is that
A kind of slag tapping method during shaft excavation, using absorb mouths pump air-breathings and lift hybrid well-flushing dreg removing systems slag tap；
Its step are as follows:
1) installs deslagging device, and slush pump is installed in the three arm type driving rack of development machine；Multiple absorption mouths are passed through into pipe
Road is installed to the cutterhead bottom of development machine in uniform way；
2) pumps air-breathing and lifts hybrid well-flushing deslagging, during digging excavation, is full of body refuse, the pick of sunk type vertical shaft in well always
Cutterhead rotation is driven into machine, cutterhead starts to tunnel downwards under gravity, the body refuse of generation and the water injected into well are tunneled,
Slurry liquid is formed under the rotation cutterhead agitation of shaft excavation machine；
A. suction method is pumped, creeps into initial stage under the style of work of slush pump, slurry liquid more suctions uniformly distributed by the cutterhead bottom of development machine
The slag suction mouth on closed tube road enters mud channel, and mud subsequently enters pulp supervisor, then by slush pump and slag releasing channel, by mud
It is discharged in surface mud clarifier-tank；
B. gas lift method, when vertical shaft creep into it is sufficiently large to mud pressure at slag suction mouth and when can be slagged tap using gas lift method, stop mud
Stock pump operation, or directly removed；The injecting compressed air in slag releasing channel, the density for making pulp be responsible for interior mud reduce,
The inside and outside formation pressure difference for being responsible for pulp carries out well-flushing, deslagging by the lift mode of injecting compressed air；
The mud for going out well with compressed air gaslift is inhaled by slush pump, is returned after being separated, being precipitated and is recycled in well.
Due to using scheme as described above, the present invention is had the following advantages:
A kind of slag tapping method during shaft excavation, overcomes the difficulty of slagging tap of prior art appearance, and the technology of low efficiency is asked
Topic, improves project progress.Superiority is as follows:
1, hybrid mud circulation deslagging lifted using pump air-breathing go out indigenous method and compare over achievable more large-size particles deslagging,
Suitable for cobble soil site.
2, pump air-breathing lift that hybrid Slagoff method solves can not deslagging since driving initial stage gas-liquid mixture pressure difference is insufficient
The problem of.
Detailed description of the invention
Fig. 1 tunneling construction process schematic；
Fig. 2 tunneling construction process floor map.
In figure: 1, revolution driving；2, drill boom；3, rotation drives；4, cutterhead；5, cutter；6, slush pump；7, slag releasing channel；
8, slag suction mouth；9, mud channel；10, open caisson transfers lift；11, open caisson transfers lift standalone basis；12, pulp master
Pipe, 13, caisson cutting edge ring；14, vertical shaft fore shaft；15, sliding slot；16, three arm type tunnels rack；17, development machine lifting device is independent
Pedestal；18, development machine lifting device.
Specific embodiment
As shown in Figure 1, 2, the slag tapping method during a kind of shaft excavation lifts hybrid wash using the mouth pump air-breathings that absorb more
Well dreg removing system is slagged tap；Its step are as follows:
1) installs deslagging device, and slush pump is installed in the three arm type driving rack of development machine；Multiple absorption mouths are passed through into pipe
Road is installed to the cutterhead bottom of development machine in uniform way；
2) pumps air-breathing and lifts hybrid well-flushing deslagging, during digging excavation, is full of body refuse, the pick of sunk type vertical shaft in well always
Cutterhead rotation is driven into machine, cutterhead starts to tunnel downwards under gravity, the body refuse of generation and the water injected into well are tunneled,
Slurry liquid is formed under the rotation cutterhead agitation of shaft excavation machine；
A. suction method is pumped, creeps into initial stage under the style of work of slush pump 6, slurry liquid more suctions uniformly distributed by the cutterhead bottom of development machine
The slag suction mouth 8 on closed tube road enters mud channel 9, and mud subsequently enters pulp supervisor 12, then passes through slush pump 6 and slag releasing channel 7,
Mud is discharged in surface mud clarifier-tank；
B. gas lift method, when vertical shaft creep into it is sufficiently large to mud pressure at slag suction mouth and when can be slagged tap using gas lift method, stop mud
Stock pump operation, or directly removed；The injecting compressed air in slag releasing channel, the density for making pulp be responsible for interior mud reduce,
The inside and outside formation pressure difference for being responsible for pulp carries out well-flushing, deslagging by the lift mode of injecting compressed air；
The mud for going out well with compressed air gaslift is inhaled by slush pump, is returned after being separated, being precipitated and is recycled in well.
The digging excavation of vertical shaft machinery tunneling construction passes through the revolution in driving rack using sunk type shaft excavation machine
Driving drives drill boom to revolve, while 2 on drill boom rotation driving band movable knife disc rotation；180 ° are driven by two rotations
Be arranged symmetrically and the revolution of the rotation of cutterhead and drill boom, realize full advance；
Pressure needed for tunneling is provided by the self weight of development machine, and decompression drilling is realized by development machine lifting device, passes through gravity
To guarantee to tunnel the verticality of vertical shaft；
When 180 ° ~ 182 ° of drill boom revolution, a full advance is completed, under the gravity of cutterhead, continues driving downwards；
When driving, development machine completes driving stroke along the chute；
When digging excavation, caisson cutting edge bottom remains 900mm between driving cutterhead under the action of transferring lift.
Claims (1)
1. the slag tapping method during a kind of shaft excavation is gone out more using the hybrid well-flushing dreg removing systems of mouth pump air-breathing act that absorb
Slag；Its step are as follows:
1) installs deslagging device, and slush pump is installed in the three arm type driving rack of development machine；Multiple absorption mouths are passed through into pipe
Road is installed to the cutterhead bottom of development machine in uniform way；
2) pumps air-breathing and lifts hybrid well-flushing deslagging, during digging excavation, is full of body refuse, the pick of sunk type vertical shaft in well always
Cutterhead rotation is driven into machine, cutterhead starts to tunnel downwards under gravity, the body refuse of generation and the water injected into well are tunneled,
Slurry liquid is formed under the rotation cutterhead agitation of shaft excavation machine；
A. suction method is pumped, creeps into initial stage under the style of work of slush pump, slurry liquid more suctions uniformly distributed by the cutterhead bottom of development machine
The slag suction mouth on closed tube road enters mud channel, and mud subsequently enters pulp supervisor 12, then by slush pump 6 and slag releasing channel 7, will
Mud is discharged in surface mud clarifier-tank；
B. gas lift method, when vertical shaft creep into it is sufficiently large to mud pressure at slag suction mouth and when can be slagged tap using gas lift method, stop mud
Stock pump operation, or directly removed；The injecting compressed air in slag releasing channel, the density for making pulp be responsible for interior mud reduce,
The inside and outside formation pressure difference for being responsible for pulp carries out well-flushing, deslagging by the lift mode of injecting compressed air；
The mud for going out well with compressed air gaslift is inhaled by slush pump, is returned after being separated, being precipitated and is recycled in well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811485580.2A CN109736812A (en) | 2018-12-06 | 2018-12-06 | A kind of slag tapping method during shaft excavation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811485580.2A CN109736812A (en) | 2018-12-06 | 2018-12-06 | A kind of slag tapping method during shaft excavation |
Publications (1)
| Publication Number | Publication Date |
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| CN109736812A true CN109736812A (en) | 2019-05-10 |
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| CN201811485580.2A Pending CN109736812A (en) | 2018-12-06 | 2018-12-06 | A kind of slag tapping method during shaft excavation |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206546A (en) * | 2019-07-12 | 2019-09-06 | 中国铁建重工集团股份有限公司 | Shaft cutter head, shaft heading machine and shaft drilling machine |
| CN111287752A (en) * | 2020-04-08 | 2020-06-16 | 中铁工程装备集团有限公司 | Multi-cutter-head large-section shaft tunneling device |
| CN113153344A (en) * | 2021-04-08 | 2021-07-23 | 江苏锐成机械有限公司 | High-level waste disposal pit tunneling system for vacuum closed deslagging |
| CN113738373A (en) * | 2021-08-30 | 2021-12-03 | 中铁工程装备集团有限公司 | Vertical shaft excavating equipment with double-mode deslagging function and vertical shaft excavating method |
| CN113982488A (en) * | 2021-09-10 | 2022-01-28 | 浙江天弘机器人科技有限公司 | Deep foundation pit tunneling robot and operation method thereof |
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| US4499957A (en) * | 1982-11-22 | 1985-02-19 | Gerald Adcock | Method for removing earth cuttings from holes being formed by a pneumatically exhausted drill tool |
| CN105735923A (en) * | 2016-03-24 | 2016-07-06 | 上海市机械施工集团有限公司 | Slurry circulation treatment system |
| CN105780809A (en) * | 2016-03-24 | 2016-07-20 | 上海市机械施工集团有限公司 | Multifunctional immersion equipment and construction method thereof |
| CN105937377A (en) * | 2016-06-08 | 2016-09-14 | 深圳市宏业基基础工程有限公司 | Air lift reverse circulation borehole cleaning method |
| CN107461197A (en) * | 2017-09-30 | 2017-12-12 | 中铁工程装备集团有限公司 | A kind of drop shaft sinking shaft excavation machine and its construction method |
-
2018
- 2018-12-06 CN CN201811485580.2A patent/CN109736812A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4499957A (en) * | 1982-11-22 | 1985-02-19 | Gerald Adcock | Method for removing earth cuttings from holes being formed by a pneumatically exhausted drill tool |
| CN105735923A (en) * | 2016-03-24 | 2016-07-06 | 上海市机械施工集团有限公司 | Slurry circulation treatment system |
| CN105780809A (en) * | 2016-03-24 | 2016-07-20 | 上海市机械施工集团有限公司 | Multifunctional immersion equipment and construction method thereof |
| CN105937377A (en) * | 2016-06-08 | 2016-09-14 | 深圳市宏业基基础工程有限公司 | Air lift reverse circulation borehole cleaning method |
| CN107461197A (en) * | 2017-09-30 | 2017-12-12 | 中铁工程装备集团有限公司 | A kind of drop shaft sinking shaft excavation machine and its construction method |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206546A (en) * | 2019-07-12 | 2019-09-06 | 中国铁建重工集团股份有限公司 | Shaft cutter head, shaft heading machine and shaft drilling machine |
| CN110206546B (en) * | 2019-07-12 | 2021-08-10 | 中国铁建重工集团股份有限公司 | Shaft cutter head, shaft heading machine and shaft drilling machine |
| CN111287752A (en) * | 2020-04-08 | 2020-06-16 | 中铁工程装备集团有限公司 | Multi-cutter-head large-section shaft tunneling device |
| CN113153344A (en) * | 2021-04-08 | 2021-07-23 | 江苏锐成机械有限公司 | High-level waste disposal pit tunneling system for vacuum closed deslagging |
| CN113738373A (en) * | 2021-08-30 | 2021-12-03 | 中铁工程装备集团有限公司 | Vertical shaft excavating equipment with double-mode deslagging function and vertical shaft excavating method |
| CN113738373B (en) * | 2021-08-30 | 2024-06-07 | 中铁工程装备集团有限公司 | Vertical shaft excavating equipment with dual-mode slag discharging function and vertical shaft excavating construction method |
| CN113982488A (en) * | 2021-09-10 | 2022-01-28 | 浙江天弘机器人科技有限公司 | Deep foundation pit tunneling robot and operation method thereof |
| CN113982488B (en) * | 2021-09-10 | 2024-03-26 | 浙江天弘机器人科技有限公司 | Deep foundation pit tunneling robot and operation method thereof |
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Application publication date: 20190510 |
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