CN103291309A - Treating method for unfavorable geologic body on one side of axis of main chamber of water sealed cave storage - Google Patents
Treating method for unfavorable geologic body on one side of axis of main chamber of water sealed cave storage Download PDFInfo
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- CN103291309A CN103291309A CN2013102681262A CN201310268126A CN103291309A CN 103291309 A CN103291309 A CN 103291309A CN 2013102681262 A CN2013102681262 A CN 2013102681262A CN 201310268126 A CN201310268126 A CN 201310268126A CN 103291309 A CN103291309 A CN 103291309A
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Abstract
The invention discloses a treating method for an unfavorable geologic body on one side of an axis of a main chamber of a water sealed cave storage. When the main chamber (1) is excavated and the unfavorable geologic body exists on one side of the axis of the main chamber (1), part of rock on the side of the unfavorable geologic body can be reserved in the main chamber (1) on the premise that the whole surrounding rock quality is good to form a natural inclined rock column (2) to support the unfavorable geologic body; and an included angle alpha between a longitudinal outer surface (2a) of the inclined rock column (2) and the bottom of the main chamber (1) is an acute angle, the bottom width of the inclined rock column (2) is smaller than that of the main chamber (1), and the height of the inclined rock column (2) is smaller than that of the main chamber (1). By means of reserving of the rock column, the construction problem of the unfavorable geologic body on one side of the axis of the main chamber of the water sealed cave storage is solved, construction difficulties are reduced, and construction costs are decreased.
Description
Technical field
The invention belongs to the underground engineering construction technology, there is the poorly processing method of plastid in a side that is specifically related to a kind of water seal cave depot master cavern axis.
Background technology
Underground water seal cave depot is that the product that will produce in the oil refinery process selects the strange land to refill a kind of storing mode of the underground space.Underground water seal cave depot have occupation of land less, advantages such as investment is little, loss is few, the operation management expense is low, security performance is high, pollution is little, handling speed is fast, memory space is big, emergency capability is strong, long service life, become at present the main deposit mode of oil, natural gas equal energy source in the world.Underground water seal cave depot is typically chosen in the massive rock tagma hard, that integrality is good, and has weak water permeability zone and build, but in actual mechanical process, adverse geological condition can appear in local rock mass.When there is poorly plastid in a side of main cavern axis, but whole quality of surrounding rock still can situation under, if according to the main cavern large cross section excavation of routine, because of rock crusher, self-stable ability is relatively poor, very easily caves in, and makes difficulty of construction increase, supporting intensity height; Perhaps adopt the method for stage excavation, the position that lower floor excavation has excavated shaping to the upper strata still has bigger blast disturbance, easilier makes above-mentioned poorly plastid occur caving in.
Summary of the invention
The purpose of this invention is to provide a kind of water seal cave depot master cavern axis one side and have the poorly processing method of plastid, with the reduction difficulty of construction, and can reduce construction cost.
In order to achieve the above object, there is the poorly processing method of plastid in a kind of water seal cave depot master provided by the invention cavern axis one side, when the main cavern of excavation (1), when there is poorly plastid in a side of main cavern (1) axis, but whole quality of surrounding rock still can prerequisite under, the part rock mass of plastid place side poorly can be reserved in the main cavern (1), form the inclination rock pillar (2) of nature to support poorly plastid; Vertical external surface (2a) of described inclination rock pillar (2) is acute angle with the angle α of bottom surface, main cavern (1), and the bottom width of inclination rock pillar (2) is less than the bottom width of main cavern (1), and the height of inclination rock pillar (2) is less than the height of main cavern (1).
In main cavern, there is the unfavorable geology structure that intersects with main cavern axis low-angle, and in the cave depot district, has intrusive vein, be referred to as in main cavern axis one side and have poorly plastid.When excavation, poorly plastid is easy to collapse along structural plane integral body; Because the excavation span of main cavern is bigger, if mechanically very easily occur caving in according to the design size excavation.
For avoiding above-mentioned poorly plastid partial collapse the time to occur in construction, can according to field condition poorly near the rock mass the plastid be reserved in the main cavern, Blasting Excavation is not carried out at this position, the rock mass that the utilization of unfavorable geology physical efficiency is reserved reaches stable purpose.Vertical external surface of the inclination rock pillar of reserving and the angle α of bottom surface, main cavern are acute angle, and the bottom width L1 of inclination rock pillar is less than the bottom width L of main cavern, the height of inclination rock pillar is less than the height of main cavern, with the liquid phase of the product of being deposited in the assurance operation phase master cavern and the balance of gas phase.
Beneficial effect: simple in structure, be skillfully constructed, by reserving the method for rock pillar, solved water seal cave depot master cavern axis one side and had the poorly construction difficult problem of plastid, reduce difficulty of construction, and reduced construction cost.
Description of drawings
Fig. 1 is structural representation of the present invention.
The specific embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is further described in detail:
There is the poorly processing method of plastid in a kind of water seal cave depot master cavern axis one side as shown in Figure 1, when the main cavern 1 of excavation, plastid (has the unfavorable geology structure that intersects with main cavern axis low-angle in as main cavern when a side of main cavern 1 axis exists poorly, perhaps in the cave depot district, there is intrusive vein, be referred to as in main cavern axis one side and have poorly plastid), but whole quality of surrounding rock still can prerequisite under, the part rock mass of plastid place side poorly can be reserved in the main cavern 1, form the inclination rock pillar 2 of nature to support poorly plastid, namely do not excavate the rock pillar of a dangerous side in the main cavern 1.Vertical external surface 2a of inclination rock pillar 2 and the angle α of 1 bottom surface, main cavern are acute angle, and the bottom width of inclination rock pillar 2 is less than the bottom width of main cavern 1, with the liquid equilibrium of the product of being deposited in the assurance operation phase master cavern 1; The height of inclination rock pillar 2 is less than the height of main cavern 1, with the gas-liquid equilibrium of the product of being deposited in the assurance operation phase master cavern 1.
Claims (1)
1. there is the poorly processing method of plastid in water seal cave depot master cavern axis one side, it is characterized in that: when the main cavern of excavation (1), when there is poorly plastid in a side of main cavern (1) axis, but whole quality of surrounding rock still can prerequisite under, the part rock mass of plastid place side poorly can be reserved in the main cavern (1), form the inclination rock pillar (2) of nature to support poorly plastid; Vertical external surface (2a) of described inclination rock pillar (2) is acute angle with the angle α of bottom surface, main cavern (1), and the bottom width of inclination rock pillar (2) is less than the bottom width of main cavern (1), and the height of inclination rock pillar (2) is less than the height of main cavern (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310268126.2A CN103291309B (en) | 2013-06-28 | 2013-06-28 | Treating method for unfavorable geologic body on one side of axis of main chamber of water sealed cave storage |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310268126.2A CN103291309B (en) | 2013-06-28 | 2013-06-28 | Treating method for unfavorable geologic body on one side of axis of main chamber of water sealed cave storage |
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| CN103291309A true CN103291309A (en) | 2013-09-11 |
| CN103291309B CN103291309B (en) | 2015-03-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361068A (en) * | 2018-01-09 | 2018-08-03 | 中石化上海工程有限公司 | A kind of cavern's Varied section design method of underground water seal cave depot |
| CN112610250A (en) * | 2020-12-14 | 2021-04-06 | 中铁隧道局集团有限公司 | Method for dismantling three rock pillar supports of large-span underground cave depot |
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2013
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| CN1804375A (en) * | 2005-01-14 | 2006-07-19 | 上海隧道工程股份有限公司 | Immersed tube tunnel final joints structure form and use method thereof |
| CN101105131A (en) * | 2007-08-17 | 2008-01-16 | 中铁十二局集团有限公司 | Tunnel dredging method suitable for railway large section IV, V class rock tunnel |
| CN102296961A (en) * | 2011-05-31 | 2011-12-28 | 中铁二十局集团有限公司 | Karst tunnel large-scale cavern processing method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361068A (en) * | 2018-01-09 | 2018-08-03 | 中石化上海工程有限公司 | A kind of cavern's Varied section design method of underground water seal cave depot |
| CN108361068B (en) * | 2018-01-09 | 2019-07-26 | 中石化上海工程有限公司 | A kind of cavern's Varied section design method of underground water seal cave depot |
| CN112610250A (en) * | 2020-12-14 | 2021-04-06 | 中铁隧道局集团有限公司 | Method for dismantling three rock pillar supports of large-span underground cave depot |
| CN112610250B (en) * | 2020-12-14 | 2021-12-24 | 中铁隧道局集团有限公司 | Method for dismantling three rock pillar supports of large-span underground cave depot |
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| CN103291309B (en) | 2015-03-25 |
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