CN102635359B - Energy-saving rapid construction method for ventilating shafts of tunnels - Google Patents
Energy-saving rapid construction method for ventilating shafts of tunnels Download PDFInfo
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- CN102635359B CN102635359B CN201210106819.7A CN201210106819A CN102635359B CN 102635359 B CN102635359 B CN 102635359B CN 201210106819 A CN201210106819 A CN 201210106819A CN 102635359 B CN102635359 B CN 102635359B
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Abstract
The invention specifically relates to an energy-saving rapid construction method for ventilating shafts of tunnels, which solves the problem that shortcomings exist in the construction on the existing ventilating shafts of tunnels by using a downward driving method. The method comprises the following steps of: a, measuring the position of a positioned shaft; b, carrying out strengthening construction on the geologic status of a shaft mouth, meanwhile, excavating a vertical ballast-discharge hole downwards from the shaft mouth, and carrying out excavation from the front hole of a tunnel to the position of the shaft until the excavating position meets the vertical ballast-discharge hole; c, carrying out shaft excavation by using a drilling and blasting combined method; d, when the shaft is excavated to a certain depth, carrying out secondary lining construction on the upper part of the shaft, wherein the secondary lining construction and the shaft construction are performed synchronously; and e, installing a shaft ventilating device. According to the invention, through adopting a mode of carrying out equidirectional and synchronous operation flow on the shaft excavation construction and the shaft secondary-lining construction, the method has the significant advantages of small safety risk, high construction speed, high working efficiency, energy saving, consumption reduction, easiness in construction drainage in shafts, low comprehensive construction cost, and capabilities of reducing the equipment investment, saving the occupied land and the cost of ecological restoration engineering, and obviously improving the construction work environment.
Description
Technical field
The present invention relates to the construction technology of tunnel ventilation vertical shaft, be specially the energy-conservation rapid constructing method of a kind of tunnel ventilation vertical shaft.
Background technology
In speedway, Large Railway Tunnel hole operation stage, air quality declines obviously, and design adopts airshaft (diameter is generally at 6～10m) to change air in hole, reaches the object of improving air quality.
At present, engineering circles adopts positive its sequence of construction of well method to be more: bore quick-fried driving, borehole wall temporary lining from top to bottom; Behind the extremely positive hole of driving, then carry out the borehole wall and median septum reinforced concrete lining layer from bottom to top.
At present, the driving method adopting is mostly: boring pops digs, temporary lining, vertical lifting muck removal, abandon quarrel nearby, the preventive works that prevent erosion be set, spoil disposal area recovery natural vegetation afforestation project, this method is applicable to major diameter tunnel and other underground construction To Construction of Silo of various geology.
Adopt positive well method construction to have following drawback:
1, bore quick-fried weak effect, driving speed is slow, every cyclic advance is about 1.0m only;
2, all quarrels of abandoning all need be promoted to well head by shaft bottom, and energy consumption is large, the muck removal time is long;
3, promote muck removal and very easily fall piece, underground construction personnel are caused to the danger side of body;
4, each inter process disturb large, synchronous continuous productive process, long construction period;
5, after vertical shaft explosion, flue dust diffusion is slow, causes the long-time pause of construction;
Once 6, meet underground water in vertical shaft, the expense of drawing water is high, have softening country rock to cause the security risk of caving in;
7, need spoil disposal area be set separately, soil erosion preventive works be set and recover the afforestation project of vegetation, natural environment is had a certain impact;
8, integrated construction cost is high, energy consumption is high, potential safety hazard is many.
Summary of the invention
The present invention adopts positive well method construction to have the problem of above-mentioned weak point in order to solve existing tunnel airshaft, provides a kind of tunnel ventilation vertical shaft energy-conservation rapid constructing method.
The present invention adopts following technical scheme to realize: the energy-conservation rapid constructing method of tunnel ventilation vertical shaft, and step is as follows: a, measurement and positioning Shaft Location; B, pit mouth geology is carried out to strengthening construction, meanwhile, from pit mouth excavation vertical deslagging hole downwards, and from tunnel positive hole to Shaft Location driving to communicating with vertical deslagging hole; The method that c, employing boring are combined with explosion is carried out shaft sinking; D, when shaft sinking reaches after certain depth, two lining constructions are carried out on vertical shaft top, and two lining constructions are synchronizeed and carried out with To Construction of Silo; E, installation vertical shaft ventilation equipment.
In work progress, pit mouth geology is reinforced to (fore shaft) and guarantee that well head is firm, be convenient to installation, the debugging of ground derrick and crane gear, with the construction synchronization job of vertical deslagging hole, improved efficiency of construction; Adopt method that boring is combined with explosion to carry out To Construction of Silo and accelerated construction speed, from vertical deslagging hole muck removal, energy-conservation and do not affect the two lining constructions of vertical shaft top, overcome existing tunnel airshaft and adopted positive well method to construct to have the problem of above-mentioned weak point.
The concrete steps that two lining constructions are carried out on vertical shaft top are as follows: a, carry out wall seat cleaning reinforce by construction hanging scaffold; B, also fixed at the latter half mounting shaft font steel I-beam of wall seat; C, on the groined type steel I-beam of wall seat, bed die is installed, and colligation wall seat the first half and the wall seat top borehole wall two lined steel muscle and median septum reinforcing bar; D, the assembly wall seat top borehole wall and median septum side form, and firm supporting; E, cast wall seat the first half and the borehole wall two lining and median septum concrete the maintenances of wall seat top; F, remove groined type steel I-beam and be arranged on the latter half of next wall seat fixed; G, on the groined type steel I-beam of the wall seat of next wall seat, bed die is installed, and the next wall seat of colligation the first half, the wall seat top borehole wall and wall seat the latter half two lined steel muscle and median septum reinforcing bar; H, the next wall seat top borehole wall and median septum side form are installed, and firm supporting; I, pour into a mould next wall seat the first half, the next wall seat top borehole wall and two lining and median septum concrete the maintenances of wall seat the latter half; J, the horizontal joint of wall seat the first half, the latter half is carried out to anti-water seal processing, circulation construction.
This two linings construction method stable operation performance is high, and synchronizes and carry out with To Construction of Silo, and when guaranteeing security performance, efficiency of construction significantly promotes, and energy-saving effect is obvious simultaneously, has simplified working procedure.
Beneficial effect of the present invention is as follows:
1, adopt the conventional rigs such as Churn drill to implement boring, form vertical deslagging hole, quicker, economical compared with raise boring machine;
2, utilize vertical deslagging hole, solved deslagging problem, change original vertical lifting muck removal in positive hole horizontal muck removal, save a large amount of daily energy consumptions and large-scale lifting means and purchase maintenance cost, and improve positive hole, tunnel muck removal utilization rate of equipment and installations;
3, the maintenance cost of purchasing of daily vertical drainage energy consumption and pumping equipment, with vertical drainage function, is saved in vertical deslagging hole;
4, thoroughly eliminate lifting muck removal and fallen the potential safety hazards such as piece is hurted sb.'s feelings, ponding immersion country rock borehole well instability;
5, downward muck removal fast, shortens the muck removal time, can increase driving cycle-index, improves efficiency of construction;
6, realize borehole wall concrete lining follow-up, shorten Sidewall Surrounding Rock open-assembly time, can suitably reduce temporary lining grade, save temporary lining expense, shorten total time of construction;
7, the vertical deslagging of preboring hole provides free face for the follow-up chambering of vertical shaft, has improved demolition effect, reduces perforating explosion energy consumption, saves explosive consumption, has alleviated blasting fume and pollute;
8, vertical deslagging hole and positive hole, tunnel connect in advance, for vertical shaft and the smoke evacuation of positive hole provide condition, have improved vertical shaft and positive hole construction environment, have reduced vertical shaft and positive hole construction ventilation cost;
9, needn't spoil disposal area be set specially and quarrel sidewalk is abandoned in build for vertical shaft, save in a large number and take up an area; Save spoil disposal area preventive works and Ecological Restoration Works expense;
The present invention changes former positive well method driving and the reverse form of construction work of lining cutting substep into shaft sinking construction and vertical shaft two linings are constructed in the same way, synchronous flow system, there is security risk little, speed of application is fast, work efficiency is high, energy-saving and cost-reducing, reduce equipment investment, save spoil disposal area and abandon quarrel sidewalk and take up an area and Ecological Restoration Works expense, construction operation environment obviously improves, in vertical shaft, construction drainage is easy, the low remarkable advantage that waits of construction integrated cost, be applicable to degree of depth 150m with interior highway tunnel ventilation vertical shaft, railway tunnel airshaft, water conservancy project construction of Diversion Tunnels, also can be applicable to the similar construction of the latter half 150m scope compared with deep shaft, two lining technology also can be applicable to the field of the energy-conservation vertical shaft of building air conditioning simultaneously.
The specific embodiment
The energy-conservation rapid constructing method of tunnel ventilation vertical shaft, step is as follows: a, measurement and positioning Shaft Location; B, pit mouth geology is carried out to strengthening construction, meanwhile, from pit mouth excavation vertical deslagging hole downwards, and from tunnel positive hole to Shaft Location driving to communicating with vertical deslagging hole; The method that c, employing boring are combined with explosion is carried out shaft sinking; D, when shaft sinking is after certain depth, two lining constructions are carried out on vertical shaft top, and two lining constructions are synchronizeed and carried out with To Construction of Silo; E, installation vertical shaft ventilation equipment.
The concrete steps that two lining constructions are carried out on vertical shaft top are as follows: a, carry out wall seat cleaning reinforce by construction hanging scaffold; B, also fixed at the latter half mounting shaft font steel I-beam of wall seat; C, on the groined type steel I-beam of wall seat, bed die is installed, and colligation wall seat the first half and the wall seat top borehole wall two lined steel muscle and median septum reinforcing bar; D, the assembly wall seat top borehole wall and median septum side form, and firm supporting; E, cast wall seat the first half and the borehole wall two lining and median septum concrete the maintenances of wall seat top; F, remove groined type steel I-beam and be arranged on the latter half of next wall seat fixed; G, on the groined type steel I-beam of the wall seat of next wall seat, bed die is installed, and the next wall seat of colligation the first half, the wall seat top borehole wall and wall seat the latter half two lined steel muscle and median septum reinforcing bar; H, the next wall seat top borehole wall and median septum side form are installed, and firm supporting; I, pour into a mould next wall seat the first half, the next wall seat top borehole wall and two lining and median septum concrete the maintenances of wall seat the latter half; J, the horizontal joint of wall seat the first half, the latter half is carried out to anti-water seal processing, circulation construction.
In specific implementation process, pit mouth geology is reinforced to (fore shaft) construction, and reinforced concrete construction is carried out to pit mouth surrounding after loosening the soil in the earth's surface that needs first artificial cooperative mechanical to excavate certain depth (5-8m), when concrete reaches after some strength, with soil, the peripheral backfill of pit mouth is closely knit; In To Construction of Silo, by boring, powder charge, detonate, muck removal, the clear end, wall seat excavation, borehole wall combined bolting and shotcrete step circulate driving downwards.
On the wall seat apart from driving face certain distance, concrete lining support system is installed, carries out the operations such as assembling reinforcement, rigging, fluid concrete, form removal maintenance, joint treatment.
Claims (1)
1. the energy-conservation rapid constructing method of tunnel ventilation vertical shaft, is characterized in that: step is as follows: a, measurement and positioning Shaft Location; B, pit mouth geology is carried out to strengthening construction, meanwhile, from pit mouth excavation vertical deslagging hole downwards, and from tunnel positive hole to Shaft Location driving to communicating with vertical deslagging hole; The method that c, employing boring are combined with explosion is carried out shaft sinking; D, when shaft sinking is after certain depth, two lining constructions are carried out on vertical shaft top, and two lining constructions synchronize and carry out with To Construction of Silo, the concrete steps that two lining constructions are carried out on vertical shaft top are as follows: d1, by construction hanging scaffold, carry out wall seat cleaning reinforcing; D2, also fixed at the latter half mounting shaft font steel I-beam of wall seat; D3, on the groined type steel I-beam of wall seat, bed die is installed, and colligation wall seat the first half and the wall seat top borehole wall two lined steel muscle and median septum reinforcing bar; D4, the assembly wall seat top borehole wall and median septum side form, and firm supporting; D5, cast wall seat the first half and the borehole wall two lining and median septum concrete the maintenances of wall seat top; D6, remove groined type steel I-beam and be arranged on the latter half of next wall seat fixed; D7, on the groined type steel I-beam of the wall seat of next wall seat, bed die is installed, and the next wall seat of colligation the first half, the wall seat top borehole wall and wall seat the latter half two lined steel muscle and median septum reinforcing bar; D8, the next wall seat top borehole wall and median septum side form are installed, and firm supporting; D9, pour into a mould next wall seat the first half, the next wall seat top borehole wall and two lining and median septum concrete the maintenances of wall seat the latter half; D10, the horizontal joint of wall seat the first half, the latter half is carried out to anti-water seal processing, circulation construction; E, installation vertical shaft ventilation equipment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210106819.7A CN102635359B (en) | 2012-04-13 | 2012-04-13 | Energy-saving rapid construction method for ventilating shafts of tunnels |
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| CN201210106819.7A CN102635359B (en) | 2012-04-13 | 2012-04-13 | Energy-saving rapid construction method for ventilating shafts of tunnels |
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| CN102635359A CN102635359A (en) | 2012-08-15 |
| CN102635359B true CN102635359B (en) | 2014-04-09 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900367A (en) * | 2012-11-01 | 2013-01-30 | 陕西彬长文家坡矿业有限公司 | Methods for drilling in cylinder of semi-finished vertical shaft and discharging water from cylinder of gangue-removal vertical shaft |
| CN104806249B (en) * | 2015-04-03 | 2016-05-04 | 核工业井巷建设公司 | A kind of short vertical shaft pilot shaft tunneling construction method |
| CN104989409B (en) * | 2015-06-17 | 2018-04-27 | 中铁十六局集团第五工程有限公司 | A kind of full face tunneling method after vertical shaft light section pore-forming |
| CN109826654A (en) * | 2019-03-12 | 2019-05-31 | 四川省交通运输厅公路规划勘察设计研究院 | Tunnel ventilation well supporting construction and its construction method |
| CN112943257B (en) * | 2021-01-25 | 2022-10-14 | 中铁十四局集团建筑工程有限公司 | Method for treating reverse borehole collapse of deep large vertical shaft |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3528278A1 (en) * | 1985-08-07 | 1987-02-19 | Gesteins & Tiefbau Gmbh | Drilling apparatus for shafts |
| JPH02304196A (en) * | 1989-05-16 | 1990-12-17 | Maeda Corp | Shaft excavation construction method |
| CN101082217A (en) * | 2006-06-02 | 2007-12-05 | 韩国石油公社 | Excavation method of vertical hole |
| CN101906972A (en) * | 2010-07-23 | 2010-12-08 | 中铁十七局集团第四工程有限公司 | Method for synchronously constructing second shaft wall lining and intermediate baffle of vertical shaft |
| CN102305075A (en) * | 2011-06-28 | 2012-01-04 | 中国水利水电第五工程局有限公司 | Vertical shaft construction method under unfavorable geological condition |
-
2012
- 2012-04-13 CN CN201210106819.7A patent/CN102635359B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3528278A1 (en) * | 1985-08-07 | 1987-02-19 | Gesteins & Tiefbau Gmbh | Drilling apparatus for shafts |
| JPH02304196A (en) * | 1989-05-16 | 1990-12-17 | Maeda Corp | Shaft excavation construction method |
| CN101082217A (en) * | 2006-06-02 | 2007-12-05 | 韩国石油公社 | Excavation method of vertical hole |
| CN101906972A (en) * | 2010-07-23 | 2010-12-08 | 中铁十七局集团第四工程有限公司 | Method for synchronously constructing second shaft wall lining and intermediate baffle of vertical shaft |
| CN102305075A (en) * | 2011-06-28 | 2012-01-04 | 中国水利水电第五工程局有限公司 | Vertical shaft construction method under unfavorable geological condition |
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