CN102748057B - Ventilating system and ventilating method used for long-distance roadway tunneling - Google Patents
Ventilating system and ventilating method used for long-distance roadway tunneling Download PDFInfo
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- CN102748057B CN102748057B CN201210213812.5A CN201210213812A CN102748057B CN 102748057 B CN102748057 B CN 102748057B CN 201210213812 A CN201210213812 A CN 201210213812A CN 102748057 B CN102748057 B CN 102748057B
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Abstract
The invention provides a ventilating system and a ventilating method used for long-distance roadway tunneling. The ventilating system comprises n sealed chambers, a plurality of ventilators and ventilating pipelines. The n sealed chambers are formed on the lateral walls of roadways along the tunneling direction of the roadways according to preset intervals, n is a natural number and is increased monotonically along the increasing of roadway tunneling distance, and an air inlet and an air outlet are respectively arranged in each sealing chamber. The plurality of ventilators are arranged at roadway openings and in each sealing chamber. The ventilating pipelines comprise a plurality of sections of continuous pipelines which are connected with the ventilator at the roadway openings and extend into the inside of a first chamber, are connected with the ventilator of the ith sealing chamber and extend into the inside of the i+1th sealing chamber, and are connected with the ventilator of nth sealing chamber and extend into the part nearby a roadway working plane, wherein i is an natural number and 1<=i<=n-1. During ventilation, each ventilator presses fresh air near the ventilator into the ventilating pipelines connected with the ventilator.
Description
Technical field
The present invention relates to tunnel excavation applications, specifically, the present invention relates to and a kind ofly grow the ventilation system that uses and method of ventilation in distance tunnelling.
Background technology
At present, along with the deep development of underground mine and underground engineering construction, the construction in long distance tunnel gets more and more.In the construction in long distance tunnel, along with the propelling of tunnelling work, the ventilation distance that the scope of operation is propped up in the pick in tunnel is more and more longer, and ventilation difficulty is increasing.So, the eliminating of the blasting fume produced in muck removal process during driving and Bracing Process, dust is needed to the ventilation time more and more grown, and ventilation effect is worse and worse.Particularly in recent years, for accelerating construction progress, improve the Mechanization Level of construction, prop up a large amount of employing trackless internal combustion muck removal haulage device in work progress in the pick in tunnel, this causes a large amount of oil smoke produced in muck removal transportation can have a strong impact on the air quality in tunnel.Ventilation effect in roadway construction not only directly affects construction speed, and directly affects the safety and Health of operating personnel.Although ventilation equipment are updated in recent years, along with the ventilation distance in tunnel pick is elongated and consider the factors such as ventilation cost, ventilation effect does not have significant progress.Therefore, the difficult problem that long Distance Ventilation problem is unit in charge of construction always how is solved.
Summary of the invention
The present invention is for solving the problems of the technologies described above and making, its object is to provide a kind of and grow the ventilation system and method for ventilation that use in distance tunnelling, with solve elongated at the ventilation distance in tunnel and ventilation cost improves not significantly ventilating problem.
To achieve these goals, in one aspect of the invention, there is provided a kind of and grow the ventilation system used in distance tunnelling, this ventilation system comprises: n sealing chamber, wherein, this n sealing chamber presses predetermined gap-forming on the sidewall in described tunnel along the tunneling direction in described tunnel, sealing chamber near access adit is designated as the 1st sealing chamber, sealing chamber near the tunnel scope of operation is designated as the n-th sealing chamber, n gets natural number and along with the increase monotonic increase of tunnelling distance, and each sealing chamber is provided with air intake vent and air outlet, multiple ventilation fan, wherein, arranges at least one ventilation fan at the access adit place in described tunnel, in described each sealing chamber, all arrange at least one ventilation fan, and ventilating duct, this ventilating duct comprise the ventilation fan that connects access adit and the air intake vent sealingly extending through the 1st sealing chamber to stretch into the 1st chamber inner, connection i-th seals the ventilation fan in chamber and the air intake vent of the air outlet and the i-th+1 sealing chamber that sealingly extend through the i-th sealing chamber stretches into the i-th+1 sealing chamber inside, and connect the ventilation fan of the n-th sealing chamber and the air outlet sealingly extending through the n-th sealing chamber reaches multistage continuous conduit near the scope of operation of tunnel, wherein, i is natural number, and 1≤i≤n-1, wherein, during ventilation, fresh air near this ventilation fan is pressed in the ventilating duct be connected with this ventilation fan by described each ventilation fan.
Preferably, a described n chamber can be formed on the one-sided wall in described tunnel.
In addition, the present invention also provides a kind of and grows the ventilation system used in distance tunnelling, this system comprises two sub-ventilation systems, every sub-ventilation system is the ventilation system that a said n chamber is formed on the one-sided wall in described tunnel, and these two sub-ventilation systems are set up along two sidewalls in described tunnel respectively.
Preferably, in above-mentioned various ventilation system, the part be connected with described multiple ventilation fan of described ventilating duct, to seal the air intake vent of chamber and the part of air outlet and the part reached near the scope of operation of tunnel through each can be stereoplasm tube road, and the remainder of described ventilating duct can be stereoplasm tube road or soft pipeline.
Preferably, in above-mentioned various ventilation system, at least one sealing chamber of described n sealing chamber can be provided with and can open closable door.
Preferably, in above-mentioned various ventilation system, described ventilating duct can be provided with one or more branch duct road, this one or more branch duct road is used for ventilating to one or more branch heading.
In another aspect of this invention, there is provided a kind of and grow the method for ventilation used in distance tunnelling, this method of ventilation comprises the steps: that (a) is treating that the access adit of digging laneway installs at least one ventilation fan, and one end of one section of ventilating duct is connected with described ventilation fan, near the scope of operation treating digging laneway described in being reached by the other end of this ventilating duct; B () carries out tunnelling, and in the process of tunnelling, ventilated by the scope of operation of described ventilating duct to tunnel by existing ventilation fan; C () is when the wind-force that existing ventilation fan is carried is not enough to carry out available ventilation to the current tunnel scope of operation, by the existing chamber on the tunnel sidewall near the scope of operation of current tunnel or now dig chamber and carry out closing and seal chamber to be formed, and form air intake vent and air outlet on sealing chamber; D () is in the process closing described chamber or after closing described chamber, at least one ventilation fan is placed in this chamber, the air intake vent existing ventilating duct near the scope of operation of current tunnel being sealingly extended through this chamber stretches in this chamber, simultaneously, one end of another section of ventilating duct is connected with the ventilation fan in this chamber, this another section of ventilating duct is sealingly extended through the air outlet of this chamber, and the other end of this another section of ventilating duct is reached near the scope of operation of current tunnel; E () proceeds tunnelling, and in the process of tunnelling, to be combined ventilate to the current tunnel scope of operation by the ventilation fan in described access adit and existing chamber by described ventilating duct; F () repeats step (c) to (e), until tunnelling terminates.
Preferably, in above-mentioned method of ventilation, the part be connected with described multiple ventilation fan of described ventilating duct, to seal the air intake vent of chamber and the part of air outlet and the part reached near the scope of operation of tunnel through each can be stereoplasm tube road, and the remainder of described ventilating duct can be stereoplasm tube road or soft pipeline.
Preferably, in above-mentioned method of ventilation, seal described at least one chamber can be provided with and can open closable door.
Preferably, in above-mentioned method of ventilation, when tunneling branch heading in described tunnel, described method also comprises the steps: to arrange one or more lateral on described ventilating duct, and this one or more lateral is used for ventilating to described branch heading.
According to practice effect of the present invention, in the driving in long distance tunnel, by arranging transfer air compartment (comprise the ventilation fan in sealing chamber, sealing chamber and pass in and out the ventilating duct of sealing chamber) at tunnel correct position, ventilation relay or point wind can be realized, thus solve elongated at the ventilation distance in tunnel and ventilation cost improves not significantly ventilating problem.Adopt ventilation system of the present invention and method of ventilation, ventilation effect and the ventilation safety in long distance tunnel can be ensured, thus greatly can extend the length of dead face driving, ensure the health of operating personnel, and accelerate speed of application.
Accompanying drawing explanation
Fig. 1 is the schematic top plan view of the ventilation system used in the long distance tunnelling described in one embodiment of the present of invention;
Fig. 2 is the sealing chamber elevation in the ventilation system shown in Fig. 1;
Fig. 3 is the schematic top plan view of the ventilation system used in the long distance tunnelling described in an alternative embodiment of the invention; And
Fig. 4 is the schematic top plan view of the ventilation system used in the long distance tunnelling described in another embodiment of the present invention.
Detailed description of the invention
The embodiment of ventilation system and the method for ventilation used in long distance of the present invention tunnelling is described below with reference to the accompanying drawings.Those of ordinary skill in the art can recognize, when without departing from the spirit and scope of the present invention, can revise by various different mode to described embodiment.Therefore, accompanying drawing is illustrative with being described in essence, instead of for limiting the protection domain of claim.In addition, in this manual, identical Reference numeral represents same or analogous part.
Fig. 1 is the schematic top plan view of the ventilation system used in the long distance tunnelling described in one embodiment of the present of invention.As shown in Figure 1, the ventilation system used in long distance tunnelling described in one embodiment of the present of invention comprises n sealing chamber 10, multiple ventilation fan 20 and ventilating duct 30, wherein, n get natural number and along with the driving distance in tunnel 200 increase monotonic increase (namely, do not reduce), in other words, the driving distance in tunnel 200 often increases predetermined length, and the number of sealing chamber 10 just increases by one.Described predetermined length is determined by the draught capacity of ventilation fan 20.
Merely illustrate a sealing chamber 10 in n sealing chamber 10(Fig. 1) along the tunneling direction in tunnel 200 by predetermined gap-forming on the one-sided wall 201 in tunnel 200, sealing chamber 10 near access adit 202 is designated as the 1st sealing chamber 10, sealing chamber near the tunnel scope of operation 203 is designated as the n-th sealing chamber 10, and each sealing chamber 10 is provided with air intake vent 12 and air outlet 13.
Sealing chamber 10 can be formed by the chamber now dug, and also can be formed by chamber existing in tunnel 200 (chamber of such as, giving another the right of way).Fig. 2 is the elevation of the sealing chamber 10 in the ventilation system shown in Fig. 1.As shown in Figure 2, one fire dam 11 can be built by laying bricks or stones to form sealing chamber 10 at the chamber mouth of that now dig or existing chamber.The fire dam 11 of sealing chamber 10 offers air intake vent 12 and air outlet 13.In addition, for convenience of ventilation fan 20 erection of equipment such as grade and maintenance, can offer on fire dam 11 and can open closable door 14.When ventilating, door 14 is closed.
A ventilation fan 20 is set at access adit 202 place in tunnel 200, a ventilation fan 20 is all set in each sealing chamber 10.
Ventilating duct 30 comprises the ventilation fan 20 of connection access adit 202 and sealingly extends through the continuous conduit that the 1st air intake vent sealing chamber stretches into the 1st chamber inside, connect the 1st sealing chamber in ventilation fan and sealingly extend through the 1st sealing chamber air outlet and the 2nd sealing chamber air intake vent stretch into the 2nd sealing chamber inside continuous conduit, connection jth-1 seals the ventilation fan in chamber and the air intake vent 12 of the air outlet and jth sealing chamber 10 that sealingly extend through jth-1 sealing chamber stretches into the continuous conduit that jth seals chamber 10 inside, connection jth seals the ventilation fan 20 in chamber 10 and the air intake vent of the air outlet 13 and jth+1 sealing chamber that sealingly extend through jth sealing chamber 10 stretches into the continuous conduit that jth+1 seals chamber inside, connect the ventilation fan in the (n-1)th sealing chamber and the air intake vent of the air outlet and the n-th sealing chamber that sealingly extend through the (n-1)th sealing chamber stretches into the continuous conduit of the n-th sealing chamber inside, and connect the ventilation fan of the n-th sealing chamber and the air outlet sealingly extending through the n-th sealing chamber reaches the multistage continuous conduits such as the continuous conduit near the tunnel scope of operation 203, wherein, merely illustrate jth sealing chamber in FIG.In superincumbent description, ventilating duct sealingly extends through each air outlet sealing chamber and air intake vent refers to that the combination of ventilating duct and each air outlet and air intake vent sealing chamber is the combination sealed, thus can prevent sealing chamber from leaking out.
In above-mentioned ventilating duct 30, do not mark the part sealing the ventilation fan in chamber with each and be connected in the part 30a(Fig. 1 be connected with multiple ventilation fan), the part 30b, the part 30c sealing the air outlet 13 of chamber through each and the part 30d reached near the tunnel scope of operation 203 that seal the air intake vent 12 of chamber through each adopt hard pipeline (such as, can be made up of iron sheet), and the remainder 30e of ventilating duct 30 can be stereoplasm tube road or soft pipeline (such as, can be made up of sebific duct), adopt soft pipeline to save cost.
Wherein, during ventilation, the fresh air near this ventilation fan is pressed in the ventilating duct be connected with this ventilation fan by each ventilation fan 20 in described ventilation system.So, described ventilation system just continuously by fresh air conveying to the tunnel scope of operation 203, then, these fresh airs just promote the flue dust in tunnel 200, make it from access adit 202 or the discharge of other exhaust opening.
Although not shown in FIG, if need to tunnel other branch heading in tunnel 200, so, one or more branch duct road can be set at correct position place on ventilating duct 30, realize the object (that is, dividing wind) of ventilating to one or more branch heading thus.
Composition graphs 1 describes the long ventilation system apart from using in tunnelling described in one embodiment of the present of invention above, and wherein, this ventilation system sets up along the one-sided wall 201 in tunnel.But the sealing chamber 10 in described ventilation system can be formed on two of tunnel 200 sidewall.This mainly considers the convenience factor forming sealing chamber, such as, can utilize existing chamber, avoid excavating the place excavation chamber etc. of chamber.When two adjacent in sequence sealing chambers 10 are formed on two sidewalls 201 in tunnel 200, ventilating duct 30 can be laid along the top vault in tunnel 200.
In addition, if need stronger ventilation effect, the quantity of ventilation fan and the quantity of ventilation system can so be increased.
Fig. 3 is the schematic top plan view of the ventilation system used in the long distance tunnelling described in an alternative embodiment of the invention.As shown in Figure 3, more than one ventilation fan 20 can be set at access adit 202 place in tunnel 200, more than one ventilation fan 20 also can be set in each sealing chamber 10.
Fig. 4 is the schematic top plan view of the ventilation system used in the long distance tunnelling described in another embodiment of the present invention.As shown in Figure 4, the ventilation system used in long distance of the present invention tunnelling can comprise two sub-ventilation systems, wherein, every sub-ventilation system all can for the long ventilation system apart from using in tunnelling described in above-described embodiment, and these two sub-ventilation systems are set up along two sidewalls in tunnel 200 respectively.
Below by the process of establishing of the ventilation system used in the long distance tunnelling simply described described in one embodiment of the present of invention and the method that utilizes this ventilation system to ventilate to the tunnel scope of operation.
Specifically, the method for ventilation used in the long distance tunnelling described in one embodiment of the present of invention can comprise the steps:
A () is treating that the access adit of digging laneway installs at least one ventilation fan, and be connected with described ventilation fan one end of one section of ventilating duct, near the scope of operation treating digging laneway described in being reached by the other end of this ventilating duct;
B () carries out tunnelling, and in the process of tunnelling, ventilated by the scope of operation of described ventilating duct to tunnel by existing ventilation fan;
C () is when the wind-force that existing ventilation fan is carried is not enough to carry out available ventilation to the current tunnel scope of operation, by the existing chamber on the tunnel sidewall near the scope of operation of current tunnel or now dig chamber and carry out closing and seal chamber to be formed, and form air intake vent and air outlet on sealing chamber;
D () is in the process closing described chamber or after closing described chamber, at least one ventilation fan is placed in this chamber, the air intake vent existing ventilating duct near the scope of operation of current tunnel being sealingly extended through this chamber stretches in this chamber, simultaneously, one end of another section of ventilating duct is connected with the ventilation fan in this chamber, this another section of ventilating duct is sealingly extended through the air outlet of this chamber, and the other end of this another section of ventilating duct is reached near the scope of operation of current tunnel;
E () proceeds tunnelling, and in the process of tunnelling, to be combined ventilate to the current tunnel scope of operation by the ventilation fan in described access adit and existing chamber by described ventilating duct;
F () repeats step (c) to (e), until tunnelling terminates.
Those of skill in the art are easy to recognize, more above-mentioned steps can perform by different orders, also can perform simultaneously, and the method for ventilation in the long distance tunnel formed by different order execution above-mentioned steps also drops within protection scope of the present invention.
In above-mentioned method of ventilation, the part be connected with described multiple ventilation fan of described ventilating duct, to seal the air intake vent of chamber and the part of air outlet and the part reached near the scope of operation of tunnel through each can be stereoplasm tube road, and the remainder of described ventilating duct can be stereoplasm tube road or soft pipeline.
In above-mentioned method of ventilation, seal described at least one chamber can be provided with and can open closable door.
In above-mentioned method of ventilation, when tunneling branch heading in described tunnel, described method also comprises the steps: to arrange one or more lateral on described ventilating duct, and this one or more lateral is used for ventilating to described branch heading.
According to practice effect of the present invention, in the driving in long distance tunnel, by arranging transfer air compartment (comprise the ventilation fan in sealing chamber, sealing chamber and pass in and out the ventilating duct of sealing chamber) at tunnel correct position, ventilation relay or point wind can be realized, thus solve elongated at the ventilation distance in tunnel and ventilation cost improves not significantly ventilating problem.Adopt ventilation system of the present invention and method of ventilation, ventilation effect and the ventilation safety in long distance tunnel can be ensured, thus greatly can extend the length of dead face driving, ensure the health of operating personnel, and accelerate speed of application.
The ventilation system and method for ventilation that use in long distance of the present invention tunnelling is described in an illustrative manner above with reference to accompanying drawing.But, it will be appreciated by those skilled in the art that the ventilation system and method for ventilation that use in the long distance tunnelling that the invention described above is proposed, various improvement and combination can also be made on the basis not departing from content of the present invention.Therefore, protection scope of the present invention should be determined by the content of appending claims.
Claims (4)
1. the method for ventilation used in the tunnelling of long distance, this method of ventilation comprises the steps:
A () is treating that the access adit of digging laneway installs at least one ventilation fan, and be connected with described ventilation fan one end of one section of ventilating duct, near the scope of operation treating digging laneway described in being reached by the other end of this ventilating duct;
B () carries out tunnelling, and in the process of tunnelling, ventilated by the scope of operation of described ventilating duct to tunnel by existing ventilation fan;
C () is when the wind-force that existing ventilation fan is carried is not enough to carry out available ventilation to the current tunnel scope of operation, by the existing chamber on the tunnel sidewall near the scope of operation of current tunnel or now dig chamber and carry out closing and seal chamber to be formed, and form air intake vent and air outlet on sealing chamber;
D () is in the process closing described chamber or after closing described chamber, at least one ventilation fan is placed in this chamber, the air intake vent existing ventilating duct near the scope of operation of current tunnel being sealingly extended through this chamber stretches in this chamber, simultaneously, one end of another section of ventilating duct is connected with the ventilation fan in this chamber, this another section of ventilating duct is sealingly extended through the air outlet of this chamber, and the other end of this another section of ventilating duct is reached near the scope of operation of current tunnel;
E () proceeds tunnelling, and in the process of tunnelling, to be combined ventilate to the current tunnel scope of operation by the ventilation fan in described access adit and existing chamber by described ventilating duct;
F () repeats step (c) to (e), until tunnelling terminates.
2. the method for ventilation used in long distance as claimed in claim 1 tunnelling, wherein, the part be connected with described multiple ventilation fan of described ventilating duct, to seal the air intake vent of chamber and the part of air outlet and the part reached near the scope of operation of tunnel through each be hard pipeline, and the remainder of described ventilating duct is hard pipeline or soft pipeline.
3. the method for ventilation used in distance as claimed in claim 1 long tunnelling, wherein, seals chamber and is provided with and can opens closable door described at least one.
4. the method for ventilation used in long distance as claimed in claim 1 tunnelling, wherein, when tunneling branch heading in described tunnel, described method also comprises the steps:
Described ventilating duct arranges one or more lateral, and this one or more lateral is used for ventilating to described branch heading.
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| CN201210213812.5A CN102748057B (en) | 2012-06-25 | 2012-06-25 | Ventilating system and ventilating method used for long-distance roadway tunneling |
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| CN201210213812.5A CN102748057B (en) | 2012-06-25 | 2012-06-25 | Ventilating system and ventilating method used for long-distance roadway tunneling |
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| CN104806281B (en) * | 2015-03-04 | 2017-02-22 | 中铁十七局集团第二工程有限公司 | Inclined shaft ventilation based high pressure air supply system in long tunnel hole |
| CN111140269A (en) * | 2019-12-28 | 2020-05-12 | 河北钢铁集团矿业有限公司 | Multi-working-face single-head tunneling ventilation system for metal underground mine infrastructure period |
| CN111396112A (en) * | 2020-03-23 | 2020-07-10 | 河南发恩德矿业有限公司 | Long-distance ventilation system for mine ramp and design method |
| CN111706381A (en) * | 2020-06-23 | 2020-09-25 | 中铁隧道局集团有限公司 | Air duct ventilation structure of extra-long single-head ventilation tunnel and ventilation method thereof |
| CN113356917A (en) * | 2021-07-19 | 2021-09-07 | 陕西冶金设计研究院有限公司 | Air return device and air return method for long-distance single-head tunneling roadway |
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