CN115075879B - Hydrogen storage structure based on composite reinforcement of deep underground rock cavern and construction method thereof - Google Patents
Hydrogen storage structure based on composite reinforcement of deep underground rock cavern and construction method thereof Download PDFInfo
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- CN115075879B CN115075879B CN202210723642.9A CN202210723642A CN115075879B CN 115075879 B CN115075879 B CN 115075879B CN 202210723642 A CN202210723642 A CN 202210723642A CN 115075879 B CN115075879 B CN 115075879B
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- rock stratum
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/16—Modification of mine passages or chambers for storage purposes, especially for liquids or gases
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/006—Lining anchored in the rock
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/155—Laggings made of strips, slats, slabs or sheet piles
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Abstract
The invention discloses a hydrogen storage structure based on composite reinforcement of a deep underground cave and a construction method thereof, comprising a rock stratum, a cave arranged in the rock stratum, and a closed ring arranged outside the cave, wherein the closed ring is formed by rock stratum grouting, and a closed space is formed in the closed ring; the support piece is arranged on the closed ring and comprises a connecting component and a support layer, wherein the connecting component is used for connecting the closed ring and the rock stratum, the connecting component respectively extrudes the closed ring and the rock stratum, and the support layer is fixed on the inner wall surface of the closed ring; and the sealing layer is arranged between the supporting layer and the inner wall surface of the sealing ring and is used for sealing the supporting layer. The invention can realize the blocking of gaps and holes, so that the gaps and the holes form a closed ring, and the closed ring is reinforced and sealed to ensure the storage of hydrogen.
Description
Technical Field
The invention relates to the technical field of gas storage, in particular to a hydrogen storage structure based on deep underground cave composite reinforcement and a construction method thereof.
Background
When hydrogen is stored, firstly, a certain space is required to be occupied, secondly, pressure is required to be applied to the hydrogen so as to meet the use requirement of the hydrogen, and the occupied space and the pressure applied to the hydrogen both increase the storage cost.
The hydrogen is stored underground, so that on one hand, the ground space is not occupied, and on the other hand, the stratum is utilized to provide high pressure to apply pressure to the hydrogen, so that the storage cost is reduced. However, when hydrogen is stored underground, gaps are formed between rocks in an underground rock stratum, the rocks are provided with pores, and the gaps and the pores all lead to the escape of the hydrogen, so that the hydrogen storage structure and the construction method thereof are provided, the gaps and the pores are blocked, and further the hydrogen is stored.
Disclosure of Invention
The invention aims to provide a hydrogen storage structure based on deep underground cave composite reinforcement and a construction method thereof, which are used for solving the problems in the prior art, blocking gaps and pores to form a closed ring, and reinforcing and sealing the closed ring to ensure the storage of hydrogen.
In order to achieve the above object, the present invention provides the following solutions: the invention provides a hydrogen storage structure based on composite reinforcement of deep underground caverns, which comprises rock stratum and caverns arranged in the rock stratum,
the closed ring is arranged outside the rock hole and is formed by grouting the rock stratum, and a closed space is formed in the closed ring;
the support piece is arranged on the closed ring and comprises a connecting component and a support layer, wherein the connecting component is used for connecting the closed ring with the rock stratum, the connecting component respectively extrudes the closed ring and the rock stratum, and the support layer is fixed on the inner wall surface of the closed ring;
the sealing layer is arranged between the supporting layer and the inner wall surface of the sealing ring and is used for sealing the supporting layer.
Preferably, the connecting assembly comprises a plurality of long anchor cables, a plurality of connecting anchor rods and a plurality of expansion anchor rods, wherein the long anchor cables and the connecting anchor rods are used for connecting the closing ring and the rock stratum, and the expansion anchor rods are used for extruding the rock stratum and the rock in the closing ring.
Preferably, the two ends of the long anchor cable are respectively positioned in the inner wall surface of the closed ring and the rock stratum, the long anchor cable extrudes the closed ring and the rock stratum, one end of the connecting anchor rod is fixed on the inner wall surface of the closed ring, and the connecting anchor rod is connected and fixed on the closed ring and the rock stratum.
Preferably, the supporting layer comprises a plurality of groups of supporting components connected end to end, the supporting components comprise two supporting steel plates which are oppositely arranged, one ends of the expansion anchor rods are fixedly connected to the supporting steel plates, the two supporting steel plates are matched with the inner wall surface of the top of the closed ring, a concrete leveling layer is paved on the inner wall surface of the bottom of the closed ring, one ends of the supporting steel plates are fixed to the concrete leveling layer, and the other ends of the supporting steel plates are fixed.
Preferably, slots are respectively formed in one end, close to each other, of each supporting steel plate, the protruding end of each supporting steel plate is located in the slot of the other supporting steel plate, the two supporting steel plates are clamped with the slots through the protruding ends, and the protruding ends of the two supporting steel plates are fixed through fixing bolts.
Preferably, the sealing layer is a clay sealing layer.
Preferably, the sealing ring is a carbon nano cement-based modified material layer.
A construction method of a hydrogen storage structure based on deep underground rock tunnel composite reinforcement comprises the following construction steps:
s1, excavating a rock hole: excavating a rock hole in the rock stratum according to preset requirements;
s2, construction of a closed ring: grouting rock stratum near the rock tunnel to plug rock cracks and pores in the rock stratum;
s3, installing long anchor cables and connecting anchor rods: driving a long anchor cable and a connecting anchor rod into the solidified closed ring;
s4, paving a sealing layer: paving a sealing layer on the inner wall surface of the sealing ring;
s5, paving a supporting layer: mounting a supporting layer on the inner wall surface of the top of the closed ring;
s6, installing an expansion anchor rod: driving an expansion anchor rod into the support layer, and enabling the tail end of the expansion anchor rod to extend into the sealing ring and the rock stratum;
s7, storing hydrogen: and (5) introducing hydrogen with humidity into the sealed closed ring for storage.
Preferably, in step S2, grouting is performed to different positions of the rock stratum through a long grouting anchor rod and a short grouting anchor rod.
Preferably, in step S7, water is added to the hydrogen gas.
The invention discloses the following technical effects:
1. the gap between the rocks is injected by adopting a grouting method, the inside of the pore of the rock is grouted, the gap and the pore are blocked after the slurry is solidified, and the ground stress generated by the rock stratum is utilized to act on the hydrogen, so that the storage cost of the hydrogen is reduced.
2. Through setting up coupling assembling, consolidate once more to the closed circle of formation, the gap and the hole that exist of extrusion improve the sealed effect of closed circle, set up the supporting layer simultaneously, support the closed circle, prevent that it from warping under the pressure effect.
3. And a sealing layer is arranged between the support layer and the sealing ring, and when hydrogen leaks, the sealing effect is kept through the sealing layer.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a hydrogen storage structure;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a partial enlarged view at B in FIG. 1;
FIG. 4 is a schematic view of a closed loop grouting state;
the device comprises a 1-rock stratum, a 2-closed ring, a 3-long anchor cable, a 4-connecting anchor rod, a 5-expansion anchor rod, a 6-supporting steel plate, a 7-clay sealing layer, an 8-concrete leveling layer, a 9-fixing bolt, a 10-mounting frame, an 11-sealing gasket, a 12-long grouting anchor rod, a 13-short grouting anchor rod, a 14-cracking area and a 15-complete area.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Referring to fig. 1-4, the invention provides a hydrogen storage structure based on composite reinforcement of a deep underground rock cavity, which comprises a rock stratum 1 and a rock cavity arranged in the rock stratum 1, wherein a closed ring 2 is arranged outside the rock cavity, the closed ring 2 is formed by grouting the rock stratum 1, and a closed space is formed in the closed ring 2; the support piece is arranged on the closed ring 2 and comprises a connecting component and a support layer, wherein the connecting component is used for connecting the closed ring 2 with the rock stratum 1, the connecting component respectively extrudes the closed ring 2 and the rock stratum 1, and the support layer is fixed on the inner wall surface of the closed ring 2; and the sealing layer is arranged between the supporting layer and the inner wall surface of the sealing ring 2 and is used for sealing the supporting layer.
During construction, a rock tunnel is excavated underground, grouting is conducted in a rock stratum 1 around the rock tunnel, gaps between the rock and the rock are sealed through grouting, holes existing in the rock are formed in the rock, after grouting is finished, a relatively sealed sealing ring 2 is formed on the outer side of the rock tunnel, a connecting component is installed on the sealing ring 2, prestress is applied to the sealing ring 2 and the rock stratum 1 and is connected with the sealing ring, meanwhile, pressure is applied to the sealing ring 2 and the rock stratum 1, adjacent rocks are mutually extruded, gaps and holes are further reduced, then a sealing layer is paved on the inner wall of the sealing ring 2, sealing is achieved, meanwhile, due to the fact that the inner wall surface of the sealing ring 2 is in an uneven state, the inner wall surface of the sealing layer is paved, installation of a subsequent supporting layer is facilitated, and the inner wall surface of the top of the supporting layer is prevented from collapsing under the action of pressure.
In one embodiment of the invention, the cavern is located about 1000 meters underground, at which time the underground pressure is 20 megapascals to 30 megapascals, which can meet the storage requirements of hydrogen.
Further, the top of the closing ring 2 is of an arc structure, the bottom of the closing ring 2 is of another arc structure, and the two arc structures are matched to form the whole closing ring 2.
Further optimizing scheme, coupling assembling includes a plurality of long anchor rope 3, a plurality of connecting stock 4, a plurality of expansion stock 5, and long anchor rope 3 and connecting stock 4 are used for connecting closed circle 2 and stratum 1, and expansion stock 5 are used for extrudeing the rock in stratum 1 and the closed circle 2. The long anchor rope 3 applies prestressing force to the rock stratum 1 and the closing ring 2 for the two closely connected together, simultaneously, connect stock 4 and play the effect of connecting both, long anchor rope 3 and connect stock 4 cooperation are connected to closing ring 2 and rock stratum 1, and expansion stock 5 exerts pressure to the rock, makes rock and rock extrudees each other, reduces gap and the hole that closing ring 2 exists.
Further optimizing scheme, long anchor rope 3 both ends are located closed circle 2 internal face and stratum 1 respectively, and long anchor rope 3 extrudees closed circle 2 and stratum 1, and connecting stock 4 one end is fixed at closed circle 2 internal face, and connecting stock 4 connects fixed closed circle 2 and stratum 1. One end of the long anchor cable 3 is fixed on the inner wall surface of the closing ring 2, the other end of the long anchor cable 3 is fixed in the rock stratum 1, and the closing ring 2 and the rock stratum 1 are mutually extruded by adjusting one end of the long anchor cable 3. And the connecting anchor rod 4 is driven into the rock stratum 1 from the inner wall surface of the closing ring 2.
In one embodiment of the invention, the structure and construction method of the long anchor cable 3 and the connecting anchor rod 4 are adopted in the prior art, namely, holes are drilled in the sealing ring 2 and the rock stratum 1 in advance, grouting is carried out on the drilled holes after the long anchor cable 3 and the connecting anchor rod 4 are respectively placed, and after grouting is finished and solidification is carried out, the installation of the long anchor cable 3 and the connecting anchor rod 4 is completed.
Further, in order to facilitate the installation of the long anchor cable 3, the long anchor cable 3 is arranged on the top inner wall surface of the closed ring 2, and the connecting anchor rods 4 can be arranged at different positions of the inner wall surface of the closed ring 2 according to requirements.
Further optimizing scheme, the supporting layer includes a plurality of groups end to end's supporting subassembly, and the supporting subassembly includes two supporting steel sheets 6 that set up relatively, and the one end rigid coupling of a plurality of expansion anchor rods 5 is on supporting steel sheet 6, and two supporting steel sheets 6 cooperation are with the adaptation of the inner wall face in closed loop 2 top, and the inner wall face is mated formation in closed loop 2 bottom has the concrete to level layer 8, and supporting steel sheet 6 one end is fixed with concrete to level layer 8, and the other end of two supporting steel sheets 6 is fixed. The top inner wall surface of the closed ring 2 is supported by a plurality of supporting components, each supporting component is formed by two supporting steel plates 6 in a matched mode, one ends of the two supporting steel plates 6 are respectively fixed on the concrete leveling layer 8, and the other ends of the two supporting steel plates 6 are connected, so that the supporting of the closed ring 2 can be completed. In addition, the installation of the expansion anchor 5 further improves the connection effect of the supporting steel plate 6 and the closing ring 2.
In one embodiment of the invention, the concrete leveling layer 8 is poured and paved after the sealing layer is paved, the top end of the concrete leveling layer 8 is fixedly connected with the mounting frame 10, the top end of the mounting frame 10 is provided with the mounting groove, one end of the supporting steel plate 6 is inserted into the mounting groove, then concrete is poured into the mounting groove, and after the concrete is solidified, the fixing of the supporting steel plate 6 and the concrete leveling layer 8 can be realized.
Further, a part of the expansion bolts 5 is fixed to the bottom of the closing ring 2, so that the expansion bolts 5 are driven into the rock at the bottom of the closing ring 2 before the concrete leveling 8 is applied.
In one embodiment of the present invention, according to practical requirements, the supporting component may be formed by splicing a plurality of supporting steel plates 6, and the splicing manner is the same as that of the adjacent end surfaces of the two supporting steel plates 6.
Further, the sealing ring 2 not only has two arc-shaped top and bottom ends, but also has two end faces, and when the two end faces are plugged and supported, the plugging and supporting can be performed in the same manner as described above, namely, the sealing layers are pre-paved on the two end faces of the sealing ring 2, and the supporting steel plate 6 is installed at any time, wherein the shape of the supporting steel plate 6 can be properly adjusted according to the end face shape of the sealing ring 2 so as to meet the use requirement.
Further optimizing scheme, the slot has been seted up respectively to the one end that two steel sheet 6 of struttes are close to each other, and the protruding end of one steel sheet 6 of struttes is located the slot of another steel sheet 6, and two steel sheet 6 of struttes pass through protruding end and slot block, and the protruding end of two steel sheet 6 of struttes is fixed through fixing bolt 9. The protruding ends of the supporting steel plates 6 are matched with the slots, so that the tightness of the joint of the two supporting steel plates 6 is improved, and hydrogen is not easy to escape from the joint of the two supporting steel plates 6.
In one embodiment of the invention, a sealing gasket 11 is fixedly connected to the protruding end of one supporting steel plate 6 close to the protruding end of the other supporting steel plate 6, and the sealing gasket 11 is abutted against the protruding end of the other supporting steel plate 6. The gasket 11 further improves the sealing effect at the junction of the two supporting steel plates 6.
Further optimizing scheme, the sealing layer is a clay sealing layer 7. When the hydrogen escapes, the hydrogen enters the clay sealing layer 7, and the water contained in the hydrogen expands the clay in the clay sealing layer 7, so that the hydrogen is not easy to escape from the clay sealing layer 7.
In a further optimized scheme, the sealing ring 2 is a carbon nano cement-based modified material layer. The carbon nano cement-based modified material is adopted for grouting, so that gaps among rocks and the pores of the rocks can be effectively plugged.
A construction method of a hydrogen storage structure based on deep underground rock tunnel composite reinforcement comprises the following construction steps:
s1, excavating a rock hole: a rock hole is excavated in the rock formation 1 according to predetermined requirements. According to the pre-exploration design, a rock hole is excavated at a predetermined depth of the rock layer 1.
S2, construction of a closed ring 2: and (3) grouting the rock stratum 1 near the rock tunnel, and plugging rock cracks and pores in the rock stratum 1. After the rock cavity is excavated, grouting is carried out from the inside of the rock cavity to the inside of the peripheral rock stratum 1 by adopting a deep and shallow hole high-low pressure coupling grouting process, so that gaps and holes are filled with slurry, and the slurry and the rock stratum 1 are matched to form a closed ring 2.
S3, installing a long anchor rope 3 and connecting an anchor rod 4: and driving a long anchor rope 3 and a connecting anchor rod 4 into the solidified closing ring 2. After the solidification of the closed ring 2 is finished, holes are drilled in the inner wall of the closed ring 2, long anchor cables 3 and connecting anchor rods 4 are correspondingly installed, prestress is applied to the closed ring 2 and the rock stratum 1 through the long anchor cables 3, the closed ring 2 and the rock stratum 1 are connected through the connecting anchor rods 4, and grouting is conducted in the drilled holes.
S4, paving a sealing layer: and paving a sealing layer on the inner wall surface of the sealing ring 2. The clay sealing layer 7 is paved on the inner wall surface of the sealing ring 2, and the inner wall surface of the sealing ring 2 is leveled by paving the clay sealing layer 7.
S5, paving a supporting layer: and a supporting layer is arranged on the inner wall surface of the top of the closed ring 2. And pouring concrete on the inner wall of the bottom of the closing ring 2 to form a concrete leveling layer 8, constructing a mounting frame 10 on the concrete leveling layer, inserting one end of the supporting steel plate 6 into the mounting frame 10 and pouring and fixing the supporting steel plate, and fixing the other end of the supporting steel plate 6 with the other supporting steel plate 6 through a fixing bolt 9.
S6, installing an expansion anchor rod 5: an expansion anchor 5 is driven into the protective layer, and the tail end of the expansion anchor 5 extends into the sealing ring 2 and the rock stratum 1. The support steel plate 6 is reserved with a plurality of holes, the expansion anchor rods 5 are driven into the holes, and the tail ends of the expansion anchor rods 5 enter the sealing ring 2 and the rock stratum 1.
S7, storing hydrogen: and introducing hydrogen with humidity into the sealed closed ring 2 for storage. And introducing hydrogen with humidity into the closed ring 2, thus completing the storage of the hydrogen.
In a further optimized scheme, in step S2, grouting is conducted to different positions of the rock stratum 1 through the long grouting anchor rod 12 and the short grouting anchor rod 13. In the rock stratum, the rupture areas 14 are distributed in an annular shape, a complete area 15 is arranged between the two rupture areas 14, a long grouting anchor rod 12 and a short grouting anchor rod 13 are arranged for improving grouting effect, the long grouting anchor rod 12 and the short grouting anchor rod 13 respectively extend into different rupture areas 14, grouting is carried out through multiple layers of the rupture areas 14, and the rupture areas 14 are matched with the complete area 15 to form a relatively closed ring 2.
In a further optimization scheme, in step S7, water is added into the hydrogen. The hydrogen and the water do not react, water is added into the hydrogen to enable the hydrogen to have humidity, and when the hydrogen escapes, the moisture carried by the hydrogen enables the clay in the clay sealing layer 7 to absorb water and expand, so that the hydrogen is not easy to escape from the clay sealing layer 7.
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
The above embodiments are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (5)
1. The utility model provides a store up hydrogen structure based on compound reinforcement of deep underground cave, includes stratum (1) and sets up the cave in stratum (1), its characterized in that:
the sealing ring (2) is arranged outside the rock hole, the sealing ring (2) is formed by grouting the rock stratum (1), and a sealing space is formed in the sealing ring (2);
the support piece is arranged on the closed ring (2) and comprises a connecting component and a support layer, wherein the connecting component is used for connecting the closed ring (2) with the rock stratum (1), the connecting component respectively extrudes the closed ring (2) and the rock stratum (1), and the support layer is fixed on the inner wall surface of the closed ring (2);
the sealing layer is arranged between the supporting layer and the inner wall surface of the sealing ring (2), and is used for sealing the supporting layer;
the connecting assembly comprises a plurality of long anchor cables (3), a plurality of connecting anchor rods (4) and a plurality of expansion anchor rods (5), wherein the long anchor cables (3) and the connecting anchor rods (4) are used for connecting the closed ring (2) and the rock stratum (1), and the expansion anchor rods (5) are used for extruding the rock stratum (1) and the rock in the closed ring (2);
the two ends of the long anchor cable (3) are respectively positioned in the inner wall surface of the closed ring (2) and the rock stratum (1), the long anchor cable (3) extrudes the closed ring (2) and the rock stratum (1), one end of the connecting anchor rod (4) is fixed on the inner wall surface of the closed ring (2), and the connecting anchor rod (4) is fixedly connected with the closed ring (2) and the rock stratum (1);
the supporting layer comprises a plurality of groups of supporting components connected end to end, each supporting component comprises two supporting steel plates (6) which are oppositely arranged, one ends of the expansion anchor rods (5) are fixedly connected to the corresponding supporting steel plates (6), the two supporting steel plates (6) are matched with the inner wall surface of the top of the closing ring (2), a concrete leveling layer (8) is paved on the inner wall surface of the bottom of the closing ring (2), one ends of the supporting steel plates (6) are fixed with the concrete leveling layer (8), and the other ends of the two supporting steel plates (6) are fixed;
the two support steel plates (6) are respectively provided with a slot at one end close to each other, the protruding end of one support steel plate (6) is positioned in the slot of the other support steel plate (6), the two support steel plates (6) are clamped with the slots through the protruding ends, and the protruding ends of the two support steel plates (6) are fixed through fixing bolts (9);
the sealing layer is a clay sealing layer (7);
the top of the closing ring (2) is of an arc-shaped structure, the bottom of the closing ring (2) is of another arc-shaped structure, and the two arc-shaped structures are matched to form the whole closing ring (2);
the protruding end of one supporting steel plate (6) is close to the protruding end of the other supporting steel plate (6) and fixedly connected with a sealing gasket (11), and the sealing gasket (11) is abutted with the protruding end of the other supporting steel plate (6).
2. The hydrogen storage structure based on composite reinforcement of deep underground caverns according to claim 1, wherein: the sealing ring (2) is a carbon nano cement-based modified material layer.
3. A construction method of a hydrogen storage structure based on composite reinforcement of a deep underground rock hole, according to claim 1, characterized in that: the construction steps comprise:
s1, excavating a rock hole: excavating a rock hole in the rock stratum (1) according to predetermined requirements;
s2, construction of a sealing ring (2): grouting a rock stratum (1) near the rock tunnel to seal rock cracks and pores in the rock stratum (1);
s3, installing a long anchor cable (3) and connecting an anchor rod (4): driving a long anchor cable (3) and a connecting anchor rod (4) into the solidified closing ring (2);
s4, paving a sealing layer: paving a sealing layer on the inner wall surface of the sealing ring (2);
s5, paving a supporting layer: mounting a supporting layer on the inner wall surface of the top of the closing ring (2);
s6, installing an expansion anchor rod (5): driving an expansion anchor rod (5) into the support layer, and enabling the tail end of the expansion anchor rod (5) to extend into the sealing ring (2) and the rock stratum (1);
s7, storing hydrogen: and introducing hydrogen with humidity into the sealed closed ring (2) for storage.
4. The construction method of the hydrogen storage structure based on the composite reinforcement of the deep underground cave according to claim 3, wherein the construction method comprises the following steps: in the step S2, grouting is carried out on different positions of the rock stratum (1) through a long grouting anchor rod (12) and a short grouting anchor rod (13).
5. The construction method of the hydrogen storage structure based on the composite reinforcement of the deep underground cave according to claim 3, wherein the construction method comprises the following steps: in step S7, water is added to the hydrogen gas.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210723642.9A CN115075879B (en) | 2022-06-24 | 2022-06-24 | Hydrogen storage structure based on composite reinforcement of deep underground rock cavern and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210723642.9A CN115075879B (en) | 2022-06-24 | 2022-06-24 | Hydrogen storage structure based on composite reinforcement of deep underground rock cavern and construction method thereof |
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| CN115075879A CN115075879A (en) | 2022-09-20 |
| CN115075879B true CN115075879B (en) | 2023-07-21 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE9801994D0 (en) * | 1998-06-05 | 1998-06-05 | Sydkraft Ab | Natural gas storage facility |
| WO2005032942A1 (en) * | 2003-09-19 | 2005-04-14 | Single Buoy Moorings, Inc. | Gas offloading system |
| DE102015103760A1 (en) * | 2015-03-13 | 2016-09-15 | Heindl Energy Gmbh | Sealing web for producing a seal for a position energy storage and method for mounting a seal of geomembranes for a position energy storage |
| CN105178981B (en) * | 2015-09-30 | 2017-07-14 | 中国矿业大学 | The closed depth coupling of broken soft rock roadway full-fracture-surfacanchoring-rod, which allows, presses bolt-grouting support method |
| CN109356650B (en) * | 2017-10-25 | 2021-03-26 | 中国矿业大学 | Method for storing energy by utilizing compressed air in underground coal mine roadway |
| CN109826667B (en) * | 2019-01-29 | 2020-05-19 | 中国矿业大学(北京) | I-shaped water retaining dam for coal mine underground reservoir |
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