CN103982204B - A kind of funneling construction method of high Large chamber - Google Patents
A kind of funneling construction method of high Large chamber Download PDFInfo
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- CN103982204B CN103982204B CN201410205472.0A CN201410205472A CN103982204B CN 103982204 B CN103982204 B CN 103982204B CN 201410205472 A CN201410205472 A CN 201410205472A CN 103982204 B CN103982204 B CN 103982204B
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Abstract
The invention discloses a kind of funneling construction method of high Large chamber, the method first adopts funnel method to construct with the part country rock exposing chamber vault, temporary lining is carried out after vault exposes, expand brush construction of funnel afterwards again to chamber bottom, and utilize the slagging of funnel well, operation plane is made progressively to be displaced downwardly to design terrace, until complete Chamber Construction.The present invention be particularly useful for highly more than 15 meters, the high Large chamber of length more than 30 meters, and have that cost of slagging tap is low, technique of slagging tap be simple, roof safety is more easily controlled, the features such as easily solution, safer environmental protection of ventilating, also there is the advantages such as safety, efficient, ventilating drainage is simple, and construction cost can be reduced, reduce security risk and quality more easily controls.
Description
Technical field
The invention belongs to ore deposit and build technical field of construction, more particularly, relate to a kind of funneling construction method of high Large chamber.
Background technology
Chamber refers to that three, space axial length is more or less the same and the underground passage on straight-through ground, and its effect normally installs various equipment, machine, material stored or instrument, or as machine maintenance room, rest room or keep away the use of calamity hedging place.
Usually, dig chamber to have connection Dow process, tunneling boring construction method, benching tunnelling method, lead the methods such as cave method.But for highly more than 15 meters, for the high Large chamber of length more than 30 meters, due to its have that span is large, difficulty of construction is large, potential safety hazard is large, rock geology complicated condition, press comparatively large and problems such as ventilation transport difficult, according to common Dow process construction, connection road of then going up a hill is longer and need turn the bend of 90 ° several times, difficulty of slagging tap and ventilate and be difficult to solve; According to benching tunnelling method construction, then the exposed area of chamber vault is comparatively large, and the program of temporary lining in early stage is complicated, and safety is difficult to ensure,
Therefore, need to provide a kind of construction method being applicable to high Large chamber, reduce the cost while guarantee safety.
Summary of the invention
For the deficiencies in the prior art, what the object of the invention is in solving the problems of the technologies described above is one or more.
The object of the present invention is to provide a kind of can lifting construction efficiency, reduce the high construction in large chambers method of construction cost.
To achieve these goals, the invention provides a kind of funneling construction method of high Large chamber, said method comprising the steps of: the springing line height of a, the length determining chamber, width, height and chamber vault; The quantity of b, setting funnel well and position, quantity and the position of described funnel well determine according to the vault boundary of works area that can cover chamber with the maximum cross section that the slope angle of 40 ~ 50 ° upwards expands the circular funnel that scopiform becomes from the well head of funnel well, wherein, according to the slag stone amount of the springing line height determination chamber vault of chamber vault, according to the well head height of chamber height and slope angle determination funnel well, according to the slag stone amount of chamber vault and the diameter of well head height determination funnel well, the quantity of described funnel well is at least two; C, to dig for the current bottom Lian Dao of vehicle equipment, dig for personnel and the current airshaft of equipment afterwards, wherein, it is outside with described funnel well and airshaft that described bottom Lian Dao can be communicated with chamber; D, from the top of bottom Lian Dao, upwards dig the funnel well of set quantity according to the position of set funnel well; E, upwards to expand brush from the well head of the first funnel well of contiguous airshaft to chamber vault and form the first funnel, when described first funnel and airshaft through after in airshaft, cat ladder is installed, wherein, the first funnel well is upwards expanded the slag stone produced in swiped through journey to transfer and to described first funnel well, form operation plane and according to operation height by the appropriate deslagging of described first funnel well; F, vault above the first funnel carry out safety support; G, upwards expand brush to chamber vault form all the other funnels successively from the well head of all the other funnel wells successively, and the vault successively above all the other funnels carries out safety support, wherein, first expand the brush funnel well adjacent with described first funnel well, and all the other funnel wells are upwards expanded the slag stone produced in swiped through journey and transfer and to all the other funnel wells described, form operation plane and according to operation height by the appropriate deslagging of all the other funnel wells described; H, from each funnel and airshaft both sides expand downwards brush until get through chamber bottom, wherein, to continue expanding the slag stone produced in swiped through journey downwards to transfer to each funnel well and airshaft and by described funnel well and the appropriate deslagging of airshaft, whole operation plane progressively to be moved down until Chamber Construction is complete.
According to an embodiment of the funneling construction method of high Large chamber of the present invention, the height of described chamber more than 15 meters, length is more than 30 meters.
According to an embodiment of the funneling construction method of high Large chamber of the present invention, described airshaft is arranged on uptake and the end-blocking of close chamber, and described airshaft is communicated with the airway that can be in communication with the outside.
According to an embodiment of the funneling construction method of high Large chamber of the present invention, described safety support is shotcrete rock bolt wire mesh support.
The present invention is compared to traditional " benching tunnelling method " or " connection Dow process ", have that cost of slagging tap is low, technique of slagging tap be simple, roof safety is more easily controlled, the features such as easily solution, safer environmental protection of ventilating, also there is the advantages such as safety, efficient, ventilating drainage is simple, and construction cost can be reduced, reduce security risk and quality and more easily control, there is good promotion prospect.
Accompanying drawing explanation
Fig. 1 is the construction top view in the connection road, funneling construction method middle and lower part of the high Large chamber of example of the present invention, illustrated therein is the setting position of funnel well, funnel and airshaft.
Fig. 2 is the construction lateral view of airshaft in the funneling construction method of the high Large chamber of example of the present invention.
Fig. 3 is the construction lateral view of funnel well in the funneling construction method of the high Large chamber of example of the present invention.
Fig. 4 is that in the funneling construction method of the high Large chamber of example of the present invention, first funnel well expands the construction lateral view of brush to the first funnel.
Fig. 5 is that in the funneling construction method of the high Large chamber of example of the present invention, second funnel well expands the construction lateral view of brush to the second funnel.
Fig. 6 is that in the funneling construction method of the high Large chamber of example of the present invention, 3rd funnel well expands the construction lateral view of brush to the 3rd funnel.
Fig. 7 is the construction lateral view expanding brush in the funneling construction method of the high Large chamber of example of the present invention downwards, wherein, according to the sequence construction of A → B → C → D.
Description of reference numerals:
1-chamber, 2-bottom Lian Dao, 3-funnel well, 3-1-first funnel well, 3-2-second funnel well, 3-3-the 3rd funnel well, 4-airshaft, 5-funnel, 5-1-first funnel, 5-2-second funnel, 5-3-the 3rd funnel, 6-slag stone, a-well head height, α-slope angle.
Detailed description of the invention
Hereinafter, be described in detail to the funneling construction method of high Large chamber of the present invention.
The concrete thought of the funneling construction method of high Large chamber of the present invention is first adopt funnel method to construct with the part country rock exposing chamber vault, temporary lining is carried out after vault exposes, expand brush construction of funnel afterwards again to chamber bottom, and utilize the slagging of funnel well, operation plane is made progressively to be displaced downwardly to design terrace, until complete Chamber Construction.Construction method of the present invention be particularly useful for highly more than 15 meters, the high Large chamber of length more than 30 meters, but to the present invention is not limited thereto.
According to the present invention, the funneling construction method of above-mentioned high Large chamber comprises the following steps a ~ h carried out successively:
The springing line height of a, the length determining chamber, width, height and chamber vault;
The quantity of b, setting funnel well and position, quantity and the position of described funnel well determine according to the vault boundary of works area that can cover chamber with the maximum cross section that the slope angle of 40 ~ 50 ° upwards expands the circular funnel that scopiform becomes from the well head of funnel well, wherein, according to the slag stone amount of the springing line height determination chamber vault of chamber vault, according to the well head height of chamber height and slope angle determination funnel well, according to the slag stone amount of chamber vault and the diameter of well head height determination funnel well, the quantity of described funnel well is at least two;
C, to dig for the current bottom Lian Dao of vehicle equipment, dig for personnel and the current airshaft of equipment afterwards, wherein, it is outside with described funnel well and airshaft that described bottom Lian Dao can be communicated with chamber;
D, from the top of bottom Lian Dao, upwards dig the funnel well of set quantity according to the position of set funnel well;
E, upwards to expand brush from the well head of the first funnel well of contiguous airshaft to chamber vault and form the first funnel, when described first funnel and airshaft through after in airshaft, cat ladder is installed, wherein, the first funnel well is upwards expanded the slag stone produced in swiped through journey to transfer and to described first funnel well, form operation plane and according to operation height by the appropriate deslagging of described first funnel well;
F, vault above the first funnel carry out safety support;
G, upwards expand brush to chamber vault form all the other funnels successively from the well head of all the other funnel wells successively, and the vault successively above all the other funnels carries out safety support, wherein, first expand the brush funnel well adjacent with described first funnel well, and all the other funnel wells are upwards expanded the slag stone produced in swiped through journey and transfer and to all the other funnel wells described, form operation plane and according to operation height by the appropriate deslagging of all the other funnel wells described;
H, from each funnel and airshaft both sides expand downwards brush until get through chamber bottom, wherein, to continue expanding the slag stone produced in swiped through journey downwards to transfer to each funnel well and airshaft and by described funnel well and the appropriate deslagging of airshaft, whole operation plane progressively to be moved down until Chamber Construction is complete.
According to one embodiment of present invention, above-mentioned airshaft is arranged on uptake and the end-blocking of close chamber, and airshaft is communicated with the airway that can be in communication with the outside.Before construction, an existing airway that can be in communication with the outside leads to the lower passage of airshaft, airshaft is arranged on uptake be in order to prevent blasting fume from entering and ensure airshaft and fresh distinguished and admirable import nearest.In addition, because airshaft realizes personnel and equipment up and down and the passage of ventilation, slag stone when therefore digging and expand each passage of brush does not allow to form any harmful effect to the safety of airshaft, preferably airshaft is arranged on the end-blocking of chamber, namely by the side of wall.
Wherein, the mode of safety support can have a variety of, such as concrete spraying support, bolt support, shotcrete rock bolt wire mesh support etc., safety support of the present invention is shotcrete rock bolt wire mesh support, the benefit of shotcrete rock bolt wire mesh support comprises: 1, supporting can closely follow work plane, and top of not leaving a blank, is conducive to safety; 2, being temporary lining, is again a part for permanent support, economic and excavation operation safety.
Because Measures compare of the present invention is abstract, in order to can be more clear and specifically describe the present invention, below in conjunction with accompanying drawing and concrete example, the present invention will be described further.
This example illustrates main construction techniques flow process of the present invention with the adhesive tape driving station Chamber Construction of certain iron ore.
One, typical process flow
Preparation of construction (comprises chamber design, parameter is determined, the measurement and positioning etc. of funnel well and airshaft and bottom Lian Dao) → dig bottom Lian Dao → dig airshaft → dig three funnel wells → by the first funnel well expand brush form the first funnel (in good time slagging tap in process) to top and carry out vault supporting → make the first funnel and airshaft top through and airshaft cat ladder → upwards expand brush second is installed, three funnel wells are to forming second, three funnels (in good time slagging tap in process) and carry out vault supporting → by each funnel and airshaft and expand brush downwards and slagging → whole chamber bottom plate drops to design terrace and completes Chamber Construction.
Two, construction sequence
1) preparation of construction
Fig. 1 is the construction top view in the connection road, funneling construction method middle and lower part of the high Large chamber of example of the present invention.As shown in Figure 1, the length of chamber 1 is 32m, width is 13m, highly for the springing line height of 17m, chamber vault is 12.3m, the slag stone amount of excavation is about 7710m
3.The quantity of funnel 5 is 3, and the desired location of funnel well 3, airshaft 4 and bottom Lian Dao 2 as shown in the figure.
Specifically, funnel well 3 refers to that cross section is circular vertical shaft substantially, and digging funnel well is expand scopiform to become the prerequisite of funnel and be also for the formation of workman's operation plane when expanding brush and the central core of circulation of slagging tap.5, funnel upwards expands scopiform from the well head of funnel well 3 with certain slope angle α to become, and slope angle α refers to the angle between the side slope of funnel and horizon.According to the present invention, slope angle α is 40 ~ 50 °, is preferably 45 °.
Wherein, quantity and the position of funnel well are that the vault boundary of works area that can cover chamber according to the maximum cross section upwards expanding the circular funnel that scopiform becomes from the well head of funnel well is determined.In this example, 3 funnels can all cover, specifically as shown in Figure 1.But the present invention is not limited thereto, the quantity of funnel well is at least two usually, can also specifically select funnel quantity and position according to the size of chamber.
In addition, also need the slag stone amount of the springing line height determination chamber vault according to chamber vault, according to the well head height a of chamber height and slope angle determination funnel well, then determine the diameter of funnel well according to the slag stone amount of chamber vault and well head height a.In this example, the slag stone amount of chamber vault is 2594m
3, well head height a is 7.6m, and the diameter of funnel well is 3m.
2) bottom Lian Dao and airshaft is dug
Fig. 2 is the construction lateral view of airshaft in the funneling construction method of the high Large chamber of example of the present invention.As depicted in figs. 1 and 2, dig for the current bottom Lian Dao 2 of vehicle equipment, dig afterwards and pass through and the airshaft 4 that can ventilate for personnel and equipment.Bottom Lian Dao 2 is for funnel well and construction of funnel provide passage, need ensure that bottom Lian Dao 2 can be communicated with chamber 1 outside and be of a size of 3.6m × 3.6m with the bottom Lian Dao 2 in funnel well 3 and airshaft 4. examples, but the present invention is not limited thereto, the cross dimensions of bottom Lian Dao can pass in and out for such as the vehicle equipments such as loader.Airshaft 4 is as personnel, facility up and down and the passage of ventilation, is generally a people and passes through.In order to ensure airshaft 4 apart from fresh distinguished and admirable import nearest and safe enough, airshaft 4 is arranged on uptake and near the right-hand member wall side of chamber 1 by this example.
3) three funnel wells are dug
Fig. 3 is the construction lateral view of funnel well in the funneling construction method of the high Large chamber of example of the present invention.As shown in Figure 3, from the top of bottom Lian Dao 2, the funnel well 3 of set quantity is upwards dug according to the position of set funnel well 3.It should be noted that, in the process digging funnel well 3, workman stands in operation on slag muck, therefore digging the slag stone that funnel well 3 produces can not all discharge, and must stay the height of enough workman's operations and slag tap in right amount depending on operation height.
4) the first funnel well is expanded brush form the first funnel (in good time slagging tap in process) to top and carry out vault supporting
Fig. 4 is that in the funneling construction method of the high Large chamber of example of the present invention, first funnel well expands the construction lateral view of brush to the first funnel.As shown in Figure 4, upwards expand brush to chamber vault from the well head of the first funnel well 3-1 of contiguous airshaft 4 with the slope angle of 45 ° and form the first funnel 5-1, the vault above the first funnel 5-1 carries out safety support.It should be noted that the first funnel well 3-1 upwards being expanded the slag stone produced in swiped through journey transfers and to the first funnel well 3-1, form operation plane and according to operation height by the appropriate deslagging of the first funnel well 3-1.
5) make the first funnel and airshaft top through and airshaft cat ladder is installed
When the first funnel 5-1 and airshaft 4 through after in airshaft 4, install cat ladder upper and lower for personnel, equipment, guarantee the roof safety of vault in a pre-installation, such as, guarantee safety by supporting.
6) second and third funnel well of brush is upwards expanded to forming second and third funnel (slagging tap in process) and carry out vault supporting in good time
Fig. 5 is that in the funneling construction method of the high Large chamber of example of the present invention, second funnel well expands the construction lateral view of brush to the second funnel.Fig. 6 is that in the funneling construction method of the high Large chamber of example of the present invention, 3rd funnel well expands the construction lateral view of brush to the 3rd funnel.As shown in Figure 5 and Figure 6, first the second funnel well 3-2 is upwards expanded brush to forming the second funnel 5-2 and carrying out safety support, then the 3rd funnel well 3-3 is upwards expanded brush to forming the 3rd funnel 5-3 and carrying out safety support.Wherein, the Ying Xiankuo brush funnel well adjacent with the first funnel well 3-1, and all the other funnel wells are upwards expanded the slag stone produced in swiped through journey and transfer and to corresponding funnel well, form operation plane and according to operation height by the appropriate deslagging of corresponding funnel well.Because the slag stone produced after vault driving is all put by funnel down-hole, for guaranteeing the safety of workman, the slag stone in funnel and funnel down-hole portion does not allow emptying, again because rock has certain coefficient of expansion, therefore need part slag stone to be discharged by funnel well and bottom Lian Dao, the slag stone in funnel discharges in the process of progressively being dug down by whole chamber.
7) each funnel and airshaft are expanded brush also slagging downwards
Fig. 7 is the construction lateral view expanding brush in the funneling construction method of the high Large chamber of example of the present invention downwards.As shown in Figure 7, brush is expanded downwards until get through chamber bottom from each funnel and airshaft both sides, wherein, to continue expanding the slag stone produced in swiped through journey downwards to transfer to each funnel well and airshaft and by funnel well and the appropriate deslagging of airshaft, whole operation plane progressively to be moved down until Chamber Construction is complete.Wherein, according to the sequence construction of the A → B shown in Fig. 7 → C → D.It should be noted that in this step, airshaft has not re-used and also for filling the slag stone expanded in swiped through journey, and the 3rd funnel well is then as the upper and lower passage of personnel, equipment and also for slagging.
8) whole chamber bottom plate drops to design terrace and completes Chamber Construction
All to be hollowed out and slag stone is transported when downwards expanding the rock of brush to chamber, then completed the construction of chamber.
In sum, the present invention is successful in lifting construction efficiency, reduction construction cost etc., and the popular practicality of construction technology, be convenient to popularize, there is good Social benefit and economic benefit.
Although done detailed description in conjunction with example to embodiments of the present invention above, the present invention is not limited to above-mentioned embodiment.Those skilled in the art can understand, and under the prerequisite not departing from present inventive concept, in claims, can also change or change etc. to above-described embodiment.
Claims (4)
1. a funneling construction method for high Large chamber, is characterized in that, said method comprising the steps of:
The springing line height of a, the length determining chamber, width, height and chamber vault;
The quantity of b, setting funnel well and position, quantity and the position of described funnel well determine according to the vault boundary of works area that can cover chamber with the maximum cross section that the slope angle of 40 ~ 50 ° upwards expands the circular funnel that scopiform becomes from the well head of funnel well, wherein, according to the slag stone amount of the springing line height determination chamber vault of chamber vault, according to the well head height of chamber height and slope angle determination funnel well, according to the slag stone amount of chamber vault and the diameter of well head height determination funnel well, the quantity of described funnel well is at least two;
C, to dig for the current bottom Lian Dao of vehicle equipment, dig for personnel and the current airshaft of equipment afterwards, wherein, it is outside with described funnel well and airshaft that described bottom Lian Dao can be communicated with chamber;
D, from the top of bottom Lian Dao, upwards dig the funnel well of set quantity according to the position of set funnel well;
E, upwards to expand brush from the well head of the first funnel well of contiguous airshaft to chamber vault and form the first funnel, when described first funnel and airshaft through after in airshaft, cat ladder is installed, wherein, the first funnel well is upwards expanded the slag stone produced in swiped through journey to transfer and to described first funnel well, form operation plane and according to operation height by the appropriate deslagging of described first funnel well;
F, vault above the first funnel carry out safety support;
G, upwards expand brush to chamber vault form all the other funnels successively from the well head of all the other funnel wells successively, and the vault successively above all the other funnels carries out safety support, wherein, first expand the brush funnel well adjacent with described first funnel well, and all the other funnel wells are upwards expanded the slag stone produced in swiped through journey and transfer and to all the other funnel wells described, form operation plane and according to operation height by the appropriate deslagging of all the other funnel wells described;
H, from each funnel and airshaft both sides expand downwards brush until get through chamber bottom, wherein, to continue expanding the slag stone produced in swiped through journey downwards to transfer to each funnel well and airshaft and by described funnel well and the appropriate deslagging of airshaft, whole operation plane progressively to be moved down until Chamber Construction is complete.
2. the funneling construction method of high Large chamber according to claim 1, is characterized in that, the height of described chamber more than 15 meters, length is more than 30 meters.
3. the funneling construction method of high Large chamber according to claim 1, is characterized in that, described airshaft is arranged on uptake and the end-blocking of close chamber, and described airshaft is communicated with the airway that can be in communication with the outside.
4. the funneling construction method of high Large chamber according to claim 1, is characterized in that, described safety support is shotcrete rock bolt wire mesh support.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410205472.0A CN103982204B (en) | 2014-05-15 | 2014-05-15 | A kind of funneling construction method of high Large chamber |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410205472.0A CN103982204B (en) | 2014-05-15 | 2014-05-15 | A kind of funneling construction method of high Large chamber |
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| CN103982204A CN103982204A (en) | 2014-08-13 |
| CN103982204B true CN103982204B (en) | 2016-01-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106285731B (en) * | 2016-08-05 | 2019-01-25 | 湖南科技大学 | A kind of small courtyard radiant type of high Large chamber and the mixed construction method of step |
| CN109630131B (en) * | 2018-11-16 | 2020-05-22 | 西北矿冶研究院 | Underground chamber construction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055214A (en) * | 1991-05-25 | 1991-10-09 | 北京市城建设计研究院 | Build the method for the large-scale underground space |
| CN1865660A (en) * | 2006-06-16 | 2006-11-22 | 中国矿业大学 | Construction method for weakening zone of floor plate wall rock |
| CN102620614A (en) * | 2012-04-19 | 2012-08-01 | 中铁二局股份有限公司 | Construction method for cave depot slag funnel |
| CN103726858A (en) * | 2013-12-28 | 2014-04-16 | 中铁三局集团有限公司 | Underground large-scale cave depot project sphere-cylinder combination excavation method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2700693B2 (en) * | 1989-08-22 | 1998-01-21 | 株式会社竹中工務店 | How to build a large architectural space underground |
| JP2690592B2 (en) * | 1990-04-04 | 1997-12-10 | 株式会社竹中工務店 | Construction method of underground cavern in soft ground |
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2014
- 2014-05-15 CN CN201410205472.0A patent/CN103982204B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055214A (en) * | 1991-05-25 | 1991-10-09 | 北京市城建设计研究院 | Build the method for the large-scale underground space |
| CN1865660A (en) * | 2006-06-16 | 2006-11-22 | 中国矿业大学 | Construction method for weakening zone of floor plate wall rock |
| CN102620614A (en) * | 2012-04-19 | 2012-08-01 | 中铁二局股份有限公司 | Construction method for cave depot slag funnel |
| CN103726858A (en) * | 2013-12-28 | 2014-04-16 | 中铁三局集团有限公司 | Underground large-scale cave depot project sphere-cylinder combination excavation method |
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