CN105627490A - Ventilation system aiming at top-down method underground construction and ventilation method of ventilation system - Google Patents
Ventilation system aiming at top-down method underground construction and ventilation method of ventilation system Download PDFInfo
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- CN105627490A CN105627490A CN201610141610.2A CN201610141610A CN105627490A CN 105627490 A CN105627490 A CN 105627490A CN 201610141610 A CN201610141610 A CN 201610141610A CN 105627490 A CN105627490 A CN 105627490A
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- Prior art keywords
- ventilation
- vent passages
- ventilation system
- ventilator trunk
- blower fan
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/065—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit fan combined with single duct; mounting arrangements of a fan in a duct
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
- E02D29/05—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench
- E02D29/055—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench further excavation of the cross-section proceeding underneath an already installed part of the structure, e.g. the roof of a tunnel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Atmospheric Sciences (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a ventilation system aiming at top-down method underground construction and a ventilation method of the ventilation system. The system comprises two ventilation channels arranged at intervals; each ventilation channel comprises a first ventilation duct, a fan, a rotation controller and an infrared inductor, wherein the first ventilation pipeline extends into a foundation pit from ground from top to bottom, the fan is arranged on the first ventilation duct, the rotation controller is connected with the fan, and the infrared inductor is arranged below the first ventilation duct; the infrared inductors and the rotation controllers are separately connected to a data processing unit. According to the ventilation system disclosed by the invention, by installing the two ventilation channels respectively used for air exhaust and air supply, a good air circulation path is formed; by installing the first ventilation ducts and the infrared inductors, a current construction region is induced in real time; distance between the current construction region and each of the two ventilation channels is obtained through the data processing unit, and a working mode of each ventilation channel is controlled through the rotation controllers; a ventilation circuit is stable; and the ventilation system does not need to be manually adjusted, is high in speed and has good real-time performance and a reliable effect.
Description
Technical field
The present invention relates to hypogee technical field of construction, it is specifically related to a kind of ventilation system for contrary sequence method underground construction and method of ventilation thereof.
Background technology
Hypogee structure is constructed by layer along in the practice being from bottom to top in tradition, and is construct by layer from top to bottom in contrary sequence method, and this is contrary sequence method and the key distinction along the practice. Sometimes can carry out the construction of structure on the ground while the structure construction of underground, be called synchronous reverse construction up and down, adopt the method can greatly save the construction duration.
Due to when reverse construction, the first structural beam slab of construction upper strata vault, and then carry out the digging of next layer of vault, therefore a large amount of shovelings and underground structure construction work all close to totally-enclosed operation, for ensureing the life security of workmen and carrying out smoothly of construction operation, construction process to be discharged airborne dust and waste gas in time that produce with mechanical execution because cutting the earth, supplements fresh air simultaneously. Therefore, ventilation system is the important component part of reverse construction.
Existing underground ventilation system to the air-supply of underground construction operating surface, adopts aerofoil fan from underground to ground air draft mainly through high-power vortex fan simultaneously, to form air circulation circulation. This ventilation system carries out for the construction overall situation usually, therefore easily causes the region air draft of hot work in progress operation undesirable, and the elsewhere away from hot work in progress region is then in the state not stopping air draft, forms the phenomenon of highly energy-consuming poor efficiency; Simultaneously owing to the variation of construction area needs constantly to regulate air-supply and gas barrier, current ventilation system regulates mainly through manual, regulate trouble, many, cost of labor height, poor in timeliness consuming time, therefore the smoke exhaust in underground space environment can be caused to form turbulent flow, have little time timely discharge, make troubles to construction, greatly reduce the performance of ventilating of underground ventilation system, fail to meet well the needs of practical application.
Summary of the invention
The present invention provides a kind of ventilation system for contrary sequence method underground construction and method of ventilation thereof, to solve in prior art the problem of the adjustment trouble existed, many, cost of labor height consuming time and poor in timeliness.
In order to solve the problems of the technologies described above, the technical scheme of the present invention is: a kind of ventilation system for contrary sequence method underground construction, comprise spaced two vent passages, vent passages described in each comprises and from top to bottom stretches into the first inner ventilator trunk of base hole from ground, pivoting controller that the blower fan be located at described first ventilator trunk is connected with described blower fan, is located at the infrared inductor below described first ventilator trunk, and described infrared inductor and pivoting controller are all connected to a data handler.
Further, vent passages described in each also comprises the 2nd ventilator trunk that described first ventilator trunk connects, and described 2nd ventilator trunk is arranged in the horizontal direction, and stretches out outside base cheats away from one end of described first ventilator trunk.
Further, the plastic hose that the 2nd ventilator trunk employing diameter is 300mm is made, and is provided with light gage wire in described plastic hose.
Further, described 2nd ventilator trunk is provided with switch baffle plate.
Further, the top of described first ventilator trunk is also provided with blocks canopy.
Further, the first ventilator trunk employing diameter is the tinned(sheet)iron airduct of 800mm.
Further, described blower fan adopts diameter to be the aerofoil fan of 800mm.
Further, described data handler adopts micro-chip.
The present invention also provides a kind of method of ventilation according to the above-mentioned ventilation system for contrary sequence method underground construction, comprises the following steps:
S1: each composition parts of two vent passages are installed according to the size of Ji Keng;
Infrared inductor in S2: two vent passages responds to current construction area in real time, and the sensed data of acquisition is sent to data handler;
S3: the sensed data received is processed by data handler, obtains the distance of current construction area respectively and between two vent passages in real time;
S4: data handler outputs control signals to pivoting controller corresponding to two vent passages, the in real time turning direction of the blower fan that control is corresponding;
S5: after last layer underground structure construction is complete, extends the first ventilator trunk in space corresponding to next layer of underground structure, and repeating step S2-S4, until it is complete to construct.
Further, described step S4 is specially: control signal is exported to the pivoting controller of two described current construction areas of vent passages middle distance near vent passages by described data handler, the blower fan of control correspondence is blown downwards, control signal is exported the pivoting controller in the vent passages of two current construction area distance of described vent passages middle distance simultaneously to, the blower fan upwards air draft that control is corresponding.
Ventilation system for contrary sequence method underground construction provided by the invention and method of ventilation thereof, arrange two vent passages by interval and carry out air draft and air-supply respectively, form good air circulation circulating path, it is achieved the available ventilation of underground space environment, by arranging the first ventilator trunk in each vent passages, and infrared inductor is thereunder set, the current construction area of induction in real time, the distance between current construction area and two vent passages is obtained by data handler, and blown by the blower fan in the nearer vent passages of pivoting controller controlled distances, the distant blower fan in vent passages carries out air draft, ensure that current construction area constantly has fresh air to enter, the airborne dust simultaneously formed and waste gas can be quickly discharged, ventilation circuit is stablized, without the need to regulating manually, speed is fast, real-time is good, reliable for effect, reduce the energy consumption of blower fan work, environmental protection.
Accompanying drawing explanation
Fig. 1 is the structural representation of the ventilation system that the present invention is directed to contrary sequence method underground construction.
Shown in figure: 100, vent passages; 1, the first ventilator trunk; 2, blower fan; 3, pivoting controller; 4, infrared inductor; 5, data handler; 6, the 2nd ventilator trunk; 61, switch baffle plate; 7, canopy is blocked.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail:
As shown in Figure 1, the present invention provides a kind of ventilation system for contrary sequence method underground construction, comprise spaced two vent passages 100, vent passages 100 described in each comprises and from top to bottom stretches into the first inner ventilator trunk 1 of base hole from ground, pivoting controller 3 that the blower fan 2 be located at described first ventilator trunk 1 is connected with described blower fan 2, is located at the infrared inductor 4 below described first ventilator trunk 1, and described infrared inductor 4 and pivoting controller 3 are all connected to a data handler 5. concrete, two vent passages 100 are arranged along the length direction interval of Ji Keng, to improve utilization ratio and the ventilation effect of blower fan 2, and infrared sensor 4 and the pivoting controller 3 in two wind path 10s 0 is all electrically connected to same data handler 5, during work, infrared inductor 4 in two vent passages 100 responds to current construction area in real time, and the sensed data of acquisition is sent to data handler 5, the sensed data received is processed by data handler 5, obtain the distance between current construction area and two vent passages 100 in real time, and output control signals to the pivoting controller 3 of these two vent passages 100 correspondences, the turning direction of the blower fan 2 that control is corresponding in real time, concrete, blower fan 2 in the vent passages 100 of the current construction area close together of controlled distances is blown downwards, pivoting controller 3 in the vent passages 100 that the current construction area of controlled distances is distant simultaneously, the blower fan 2 upwards air draft that control is corresponding, to ensure that current construction area constantly has fresh air to enter, the airborne dust simultaneously formed and waste gas can be quickly discharged, ventilation circuit is stablized, without the need to regulating manually, speed is fast, real-time is good, reliable for effect, reduce the energy consumption of blower fan work, environmental protection.
Continue referring to Fig. 1, vent passages 100 described in each also comprises the 2nd ventilator trunk 6 that described first ventilator trunk 1 connects, described 2nd ventilator trunk 6 is arranged in the horizontal direction, and stretch out outside base cheats away from one end of described first ventilator trunk 1, the first ventilator trunk 1 is coordinated to ventilate, preferably, described 2nd ventilator trunk 6 is provided with switch baffle plate 61, concrete, this switch baffle plate 61 is located at distance the first ventilator trunk 1 about 0.5m place, open the 2nd ventilator trunk 6 as required or close the 2nd ventilator trunk 6, to improve drafting efficiency further.
Preferably, the top of described first ventilator trunk 1 is also provided with blocks canopy 7, concrete, blocks the first ventilator trunk 1 top of canopy 7 side of resting on the ground, it is possible to stop that rainwater and big article enter vent passages 100 and it cause obstruction and affects ventilation effect.
Preferably, the first ventilator trunk 1 adopts diameter to be the tinned(sheet)iron airduct of 800mm.
Preferably, the 2nd ventilator trunk 6 adopts diameter to be that the plastic hose of 300mm is made, and is provided with light gage wire in described plastic hose.
Preferably, described blower fan 2 adopts diameter to be the aerofoil fan of 800mm, and power is big, efficiency height.
Preferably, described data handler 5 adopts micro-chip, the real-time sensed data of infrared inductor 4 is processed the distance obtained between current construction area and two vent passages 100 by this micro-chip, and send air blowing control signal to the pivoting controller 3 in the vent passages 100 apart from current construction area close together, the blower fan 2 of control correspondence is blown downwards, send air draft control signal to the pivoting controller 3 in the vent passages 100 distant apart from current construction area simultaneously, the blower fan 2 upwards air draft that control is corresponding, change according to current construction area can adjust the mode of operation of two vent passages 100 in real time, to realize best ventilation effect.
The present invention also provides the method for ventilation of a kind of ventilation system for contrary sequence method underground construction described above, comprises the following steps:
S1: each composition parts of two vent passages 100 are installed according to the size of Ji Keng, concrete, first ventilator trunk 1 from top to bottom stretches in described base hole from ground, and lower section stretches in the underground space layer of current construction, install successively in the corresponding position of the first ventilator trunk 1 and block canopy 7, blower fan 2, pivoting controller 3 and infrared inductor 4.
Infrared inductor 4 in S2: two vent passages 100 responds to current construction area in real time, and the sensed data of acquisition is sent to data handler 5, concrete, infrared inductor 4 responds to workmen or the positional information of construction machinery, and the sensed data comprising positional information obtained is sent in data handler 5 and processes.
S3: the sensed data received is processed by data handler 5, obtain the distance of current construction area respectively and between two vent passages 100 in real time, concrete, data handler 5 is micro-chip, and the real-time sensed data of infrared inductor 4 is processed the distance obtained between current construction area and two vent passages 100 by it.
S4: data handler 5 outputs control signals to the pivoting controller 3 of two vent passages 100 correspondences, the in real time turning direction of the blower fan 2 that control is corresponding; Concrete, data handler 5 sends air blowing control signal to the pivoting controller 3 in the vent passages 100 apart from current construction area close together, the blower fan 2 of control correspondence is blown downwards, send air draft control signal to the pivoting controller 3 in the vent passages 100 distant apart from current construction area simultaneously, the blower fan 2 upwards air draft that control is corresponding, change according to current construction area can adjust the mode of operation of two vent passages 100 in real time, to realize best ventilation effect.
S5: after last layer underground structure construction is complete, extend the first ventilator trunk 1 in space corresponding to next layer of underground structure, and repeating step S2-S4, complete until constructing, in the present embodiment, also it is included on the first vent passages 1 of prolongation to arrange the 2nd ventilator trunk 6 and carries out secondary ventilation.
In sum, ventilation system for contrary sequence method underground construction provided by the invention and method of ventilation thereof, two vent passages 100 are set by interval and carry out air draft and air-supply respectively, form good air circulation circulating path, it is achieved the available ventilation of underground space environment, by arranging the first ventilator trunk 1 in each vent passages 100, and infrared inductor 4 is thereunder set, the current construction area of induction in real time, the distance between current construction area and two vent passages 100 is obtained by data handler 5, and blown by the blower fan 2 in the nearer vent passages 100 of pivoting controller 3 controlled distances, blower fan 2 in distant vent passages 100 carries out air draft, ensure that current construction area constantly has fresh air to enter, the airborne dust simultaneously formed and waste gas can be quickly discharged, ventilation circuit is stablized, without the need to regulating manually, speed is fast, real-time is good, reliable for effect, reduce the energy consumption of blower fan work, environmental protection.
Although embodiments of the present invention being illustrated in specification sheets, but these implement mode just as prompting, it should not limit protection scope of the present invention. Carry out various omission, displacement and change without departing from the spirit and scope of the present invention all should be included in protection scope of the present invention.
Claims (10)
1. the ventilation system for contrary sequence method underground construction, it is characterized in that, comprise spaced two vent passages, vent passages described in each comprises and from top to bottom stretches into the first inner ventilator trunk of base hole from ground, pivoting controller that the blower fan be located at described first ventilator trunk is connected with described blower fan, is located at the infrared inductor below described first ventilator trunk, and described infrared inductor and pivoting controller are all connected to a data handler.
2. the ventilation system for contrary sequence method underground construction according to claim 1, it is characterized in that, vent passages described in each also comprises the 2nd ventilator trunk being connected with described first ventilator trunk, described 2nd ventilator trunk is arranged in the horizontal direction, and stretches out outside base cheats away from one end of described first ventilator trunk.
3. the ventilation system for contrary sequence method underground construction according to claim 2, it is characterised in that, described 2nd ventilator trunk is provided with switch baffle plate.
4. the ventilation system for contrary sequence method underground construction according to claim 2, it is characterised in that, the plastic hose that the 2nd ventilator trunk employing diameter is 300mm is made, and is provided with light gage wire in described plastic hose.
5. the ventilation system for contrary sequence method underground construction according to claim 1, it is characterised in that, the top of described first ventilator trunk is also provided with blocks canopy.
6. the ventilation system for contrary sequence method underground construction according to claim 1, it is characterised in that, the first ventilator trunk employing diameter is the tinned(sheet)iron airduct of 800mm.
7. the ventilation system for contrary sequence method underground construction according to claim 1, it is characterised in that, described blower fan adopts diameter to be the aerofoil fan of 800mm.
8. the ventilation system for contrary sequence method underground construction according to claim 1, it is characterised in that, described data handler adopts micro-chip.
9. the method for ventilation of the ventilation system for contrary sequence method underground construction according to the arbitrary item of claim 1��8, it is characterised in that, comprise the following steps:
S1: each composition parts of two vent passages are installed according to the size of Ji Keng;
Infrared inductor in S2: two vent passages responds to current construction area in real time, and the sensed data of acquisition is sent to data handler;
S3: the sensed data received is processed by data handler, obtains the distance of current construction area respectively and between two vent passages in real time;
S4: data handler outputs control signals to pivoting controller corresponding to two vent passages, the in real time turning direction of the blower fan that control is corresponding;
S5: after last layer underground structure construction is complete, extends the first ventilator trunk in space corresponding to next layer of underground structure, and repeating step S2-S4, until it is complete to construct.
10. method of ventilation according to claim book 9, it is characterized in that, described step S4 is specially: control signal is exported to the pivoting controller of two described current construction areas of vent passages middle distance near vent passages by described data handler, the blower fan of control correspondence is blown downwards, control signal is exported the pivoting controller in the vent passages of two current construction area distance of described vent passages middle distance simultaneously to, the blower fan upwards air draft that control is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610141610.2A CN105627490B (en) | 2016-03-11 | 2016-03-11 | A kind of ventilating system and its method of ventilation for contrary sequence method underground construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610141610.2A CN105627490B (en) | 2016-03-11 | 2016-03-11 | A kind of ventilating system and its method of ventilation for contrary sequence method underground construction |
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| Publication Number | Publication Date |
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| CN105627490A true CN105627490A (en) | 2016-06-01 |
| CN105627490B CN105627490B (en) | 2019-05-28 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2884018Y (en) * | 2005-12-06 | 2007-03-28 | 深圳市科民人居环境技术有限公司 | Central air ventilation equipment for rooms |
| CN201786374U (en) * | 2010-05-20 | 2011-04-06 | 山东科技大学 | Ventilating device for driving face |
| CN203685249U (en) * | 2014-02-18 | 2014-07-02 | 李红玉 | Tunnel ventilating system |
| CN104533500A (en) * | 2014-12-10 | 2015-04-22 | 耿秀 | Natural ventilation system and method for coal mine underground |
| CN104632676A (en) * | 2014-12-01 | 2015-05-20 | 刘变美 | Improved type tunnel ventilation control system |
| CN205403046U (en) * | 2016-03-11 | 2016-07-27 | 上海建工二建集团有限公司 | Ventilation system to reverse construction method underground construction |
-
2016
- 2016-03-11 CN CN201610141610.2A patent/CN105627490B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2884018Y (en) * | 2005-12-06 | 2007-03-28 | 深圳市科民人居环境技术有限公司 | Central air ventilation equipment for rooms |
| CN201786374U (en) * | 2010-05-20 | 2011-04-06 | 山东科技大学 | Ventilating device for driving face |
| CN203685249U (en) * | 2014-02-18 | 2014-07-02 | 李红玉 | Tunnel ventilating system |
| CN104632676A (en) * | 2014-12-01 | 2015-05-20 | 刘变美 | Improved type tunnel ventilation control system |
| CN104533500A (en) * | 2014-12-10 | 2015-04-22 | 耿秀 | Natural ventilation system and method for coal mine underground |
| CN205403046U (en) * | 2016-03-11 | 2016-07-27 | 上海建工二建集团有限公司 | Ventilation system to reverse construction method underground construction |
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| CN105627490B (en) | 2019-05-28 |
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