CN114738008B - Adjustable reverse arch type supporting member for tunnel bridge construction and use method thereof - Google Patents
Adjustable reverse arch type supporting member for tunnel bridge construction and use method thereof Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 110
- 230000003014 reinforcing effect Effects 0.000 claims description 38
- 238000005065 mining Methods 0.000 claims description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 2
- 210000001503 joint Anatomy 0.000 abstract description 23
- 239000010959 steel Substances 0.000 abstract description 8
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 230000006978 adaptation Effects 0.000 description 8
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
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- 239000004567 concrete Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
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- 239000011150 reinforced concrete Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
- E21D11/183—Supporting means for arch members, not provided for in E21D11/22
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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
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Abstract
The invention relates to the technical field of tunnels, in particular to an adjustable reverse-arch supporting member for tunnel and bridge construction and a using method thereof, and solves the problems that in the prior art, all reverse-arch supporting members are independent mechanisms and cannot be combined with a connecting structure to support an internal extension part, so that the steel consumption is large, the combined supporting is inconvenient, and the stress characteristic of the supporting member is not fully exerted. An adjustable reverse arch type supporting component for tunnel and bridge construction and a using method thereof comprise a tunnel, two supporting mechanisms and a plurality of groups of supporting modules arranged in the tunnel, wherein each group of supporting modules comprises a connecting mechanism and an assembling and extending mechanism, and the supporting mechanism comprises a base. The tunnel supporting structure is reasonable in structure, only two ends in the tunnel are supported through the two inverted arch type supporting structures, the middle section of the tunnel is supported in a mutual butt joint mode through the lightweight supporting modules, the interconnected supporting can be achieved, and the stress characteristic of the supporting structure is greatly improved.
Description
Technical Field
The invention relates to the technical field of tunnels, in particular to an adjustable reverse arch type supporting member for tunnel and bridge construction and a using method thereof.
Background
Along with the development of urban economy in China, urban population is concentrated in a large number, huge pressure is caused on public transportation, the problem of urban traffic jam is rare frequently, further development of cities is severely restricted, and a large number of overpasses and viaducts are built for solving the urban traffic problem. But the ground bridges have great influence on urban environment, so that the use value of surrounding land is reduced, and bridges crossing rivers and rivers also have influence on navigation channels. Meanwhile, in order to solve the air defense problem, many cities convert traffic into underground to build underground overpasses, subways and underground rapid traffic main road tunnels. In various domestic big cities, in recent years, urban subway tunnels play a vital role in urban construction.
The earliest tunnel used for traffic in china was the stony tunnel on the ancient recognition chute, built in east han for nine years (66 men). The ancient tunnels are mostly built in harder rocks in order to omit linings. When the tunnel is constructed, the rock wall is firstly heated, and then cold water is poured, so that the rock is expanded and then suddenly contracted to crack, and the tunnel is favorable for excavation. In the middle ages, tunnels are mainly used for mining and military purposes. In the 17 th and 18 th century, with the development of transportation industry and the progress of technology, especially the application of engineering explosive, the engineering of constructing navigation tunnels and road tunnels is also developed. The development of railway construction in the 19 th century promotes the rapid development of tunnel engineering, and the number of constructed tunnels is large. Since the 20 th century, the traffic volume of automobiles is increasing, the standard of road routes is correspondingly improved, and the number of road tunnels is gradually increased.
The main building of the highway tunnel generally comprises a tunnel body, a lining and a tunnel door, and an open cut tunnel is additionally built in a section where a tunnel opening is easy to collapse. The auxiliary structures of the tunnel include waterproof and drainage facilities, ventilation and lighting facilities, traffic signal facilities, emergency facilities, and the like. The design of the highway tunnel is generally carried out by firstly carrying out scheme design and then carrying out concrete design on the plane and the vertical section, the clearance, the lining and the like of the tunnel. Among them, the tunnel lining is a structure constructed along the periphery of a tunnel in order to prevent soil and stones from weathering and collapsing and to prevent groundwater from flowing into the tunnel. It is usually made up by building stone, concrete and reinforced concrete on site or assembling prefabricated components made of concrete, reinforced concrete, cast iron or steel material.
However, in the existing tunnel, no matter a road tunnel, a railway tunnel or an urban underground tunnel project, an i-steel or a round steel bar is processed into an adjustable reverse arch type supporting member to bear the pressure of surrounding rocks of the tunnel in the tunnel construction process, and the depth of the tunnel is increased along with the progress of the project, so that a large number of reverse arch type supporting members are required for supporting, however, the reverse arch type supporting members in the prior art are all independent mechanisms and cannot be combined with a connecting structure to support an internal extension part, so that the steel consumption is large, the combination and the support are inconvenient, and the stress characteristic of the supporting members is not fully exerted.
Disclosure of Invention
The invention aims to provide an adjustable reverse-arch supporting member for tunnel and bridge construction and a using method thereof, and solves the problems that in the prior art, in the tunnel construction process, no matter a highway tunnel, a railway tunnel or an urban underground tunnel project, I-steel or round steel bars are adopted to be processed into the adjustable reverse-arch supporting member to bear the pressure of surrounding rocks of the tunnel, and the depth of the tunnel is increased along with the progress of the project, so a large number of reverse-arch supporting members are required to support, however, the reverse-arch supporting members in the prior art are all independent mechanisms, cannot be combined with a connecting structure to support an internal extension part, so that the steel consumption is large, the combined support is inconvenient, and the stress characteristic of the supporting member is not fully exerted.
In order to achieve the purpose, the invention adopts the following technical scheme:
an adjustable reverse arch type supporting member for tunnel and bridge construction comprises a tunnel, two supporting mechanisms and a plurality of groups of supporting modules arranged in the tunnel;
each group of support modules comprises a connecting mechanism and an assembling and extending mechanism;
the supporting mechanism comprises a base, a supporting frame and a first inverted arch supporting plate, the supporting frame is detachably connected to the top of the base, and the first inverted arch supporting plate is detachably connected to the top of the supporting frame;
the connecting mechanism comprises a second anti-arch supporting plate and two extension connecting rods symmetrically arranged at the bottom of the second anti-arch supporting plate, and two ends of each extension connecting rod are fixedly connected with extension connecting pieces;
the assembly extension mechanism comprises an internal reinforcing frame, two upright rods symmetrically arranged on two sides of the internal reinforcing frame and a middle mounting plate horizontally arranged at the top of the internal reinforcing frame, wherein two sides of the internal reinforcing frame are detachably connected with the side walls of the adjacent upright rods;
every extension connecting piece that is close to braced frame all can be dismantled with braced frame's lateral wall and be connected, and every extension connecting piece that is close to put the mounting panel all can be dismantled with the lateral wall of putting the mounting panel in and be connected.
Preferably, the bottom of the first inverted arch supporting plate is connected with the top of the supporting frame through a top supporting frame, and a plurality of internal reinforcing structures are fixedly connected inside the top supporting frame.
Preferably, the both sides of top sprag frame all are provided with the marginal support plate with an inner wall laminating of anti-arch support plate, every one side of marginal support plate all is through connecting horizontal pole and top sprag frame fixed connection, the corner butt joint spare of bottom one side fixedly connected with and braced frame top corner looks adaptation of connecting the horizontal pole.
Preferably, a plurality of built-in tension rods are obliquely arranged on two sides of the inside of the supporting frame, a plurality of built-in cross rods are arranged on the other two sides of the inside of the supporting frame and in the vertical direction of the supporting frame, two ends of each built-in cross rod are detachably connected with the inner wall of the adjacent supporting frame, and two ends of each built-in tension rod are fixedly connected with the inner wall of the adjacent supporting frame.
Preferably, both ends of the built-in cross rod are fixedly connected with end connecting plates, one end, opposite to the end connecting plates, of each end connecting plate is provided with a connecting groove matched with the supporting frame, and the side wall of the supporting frame is fixedly connected with the side wall bolt of the connecting groove.
Preferably, the top both sides of base all fixedly connected with side guard plate, two the equal bolt fixedly connected with locking plate in one side top that the side guard plate is corresponding, braced frame's inner chamber bottom both sides center department all sets up the locking groove with locking plate looks adaptation, two the level is provided with the check lock pole between the check lock board, the both ends of check lock pole are all rotated through the commentaries on classics handle of rotating the connection and are connected with locking screw, two locking screw with locking screw looks adaptation is all seted up to the one end that the check lock board corresponds, the top of base just is located and vertically is provided with a plurality of one end and base top fixed connection's butt joint screw rod between two side guard plates, braced frame's inner chamber bottom sets up a plurality of and the butt joint hole with butt joint screw looks adaptation, every the equal threaded connection in top portion of butt joint screw rod has the butt joint nut, braced frame's both sides top fixedly connected with a plurality of butt joint flange, braced frame's both sides all slope is provided with a plurality of lateral part reinforcing rod, every the one end of lateral part reinforcing rod all is connected with the butt joint flange with the top of base, the other end is connected with the vertical bottom fixed bolster that is provided with bottom fixed bolster that is connected with the braced frame's inner chamber.
Preferably, two the mounting groove with inside reinforcing frame lateral wall looks adaptation is all seted up to the corresponding one side of pole setting, two the equal slope in one side that the pole setting is relative is provided with the support side lever, two the equal fixedly connected with bottom steadying plate of bottom portion of pole setting, the one end of support side lever and the lateral wall fixed connection of pole setting, the other end is connected with the top of bottom steadying plate, the both sides of inside reinforcing frame all with the inner wall bolt fixed connection of adjacent mounting groove, the equal fixedly connected with in both sides of putting the mounting panel in and the extension butt joint plate of extension connecting piece looks adaptation, the equal fixedly connected with one end in bottom both sides of anti-arch backup pad three runs through the guide arm of fixed bolster through the sliding sleeve, the bottom center department of anti-arch backup pad three rotates and is connected with the adjusting screw that one end runs through the fixed bolster through the swivel nut.
A method of using an adjustable reverse arch support member for tunnel bridge construction, comprising: during the tunnel exploitation, install two supporting mechanism to the inside both ends position in tunnel and support the top in tunnel, the inside middle position in tunnel, support and be connected with two supporting mechanism through supporting the module, supporting mechanism's base, supporting frame and anti-arch backup pad one form support the supporting construction of anti-arch formula and support the inside both ends position in tunnel, the supporting mechanism of one end passes through coupling mechanism and is connected with equipment extension mechanism, the supporting mechanism of the other end passes through coupling mechanism and is connected with equipment extension mechanism, connect through a plurality of groups support module between the equipment extension mechanism at both ends, along with the increase of tunnel exploitation degree of depth, it can to remove the inside supporting mechanism in tunnel and dock and support through supporting the module.
The invention has at least the following beneficial effects:
during tunnel exploitation, install two supporting mechanism to the inside both ends position in tunnel and support the top in tunnel, the inside middle position in tunnel, support and be connected with two supporting mechanism through supporting the module, supporting mechanism's base, supporting frame and anti-arch backup pad one form the supporting structure who supports anti-arch support the inside both ends position in tunnel and support, the supporting mechanism of one end passes through coupling mechanism and is connected with equipment extension mechanism, the supporting mechanism of the other end passes through coupling mechanism and is connected with equipment extension mechanism, connect through a plurality of groups support module between the equipment extension mechanism at both ends, along with the increase of tunnel exploitation degree of depth, it can to remove the inside supporting mechanism in tunnel and dock and support through supporting the module, rational in infrastructure, only need to support the inside both ends in tunnel through two anti-arch support structures, tunnel middle section position through lightweight support module each other butt joint support can, can realize the interconnection and support, the atress characteristic of supporting structure has been improved greatly.
The invention also has the following beneficial effects:
1. when the tunnel is mined, two supporting mechanisms are arranged at two end positions in the tunnel to support the top of the tunnel, the middle position in the tunnel is supported by a supporting module and is connected with the two supporting mechanisms, a base of each supporting mechanism, a supporting frame and an inverted arch supporting plate form a supporting inverted arch type supporting structure to support two end positions in the tunnel, the base is connected with the supporting frame through a butt joint screw rod, a side guard plate, a locking plate and a locking rod and is stably supported by the base, the inverted arch supporting plate is connected with the supporting frame through a top supporting frame, an internal reinforcing structure, an edge supporting plate and a corner butt joint piece, the supporting strength and the stability are effectively improved, and the supporting strength of the supporting frame is greatly improved through the arrangement of a built-in top plate, a bottom fixing frame, a built-in tensioning rod, a built-in transverse rod and a side reinforcing rod, the supporting mechanism at one end is connected with the assembly extending mechanism through the connecting mechanism, the supporting mechanism at the other end is connected with the assembly extending mechanism through the connecting mechanism, the connecting mechanism realizes double functions of connection and support through the extending connecting rod and the inverted arch supporting plate II, the assembly extending mechanism ensures the support strength while realizing light weight through the arrangement of the internal reinforcing frame and the inverted arch supporting plate III, so that the support force of the middle section of the tunnel can be ensured, the integral support stress characteristic can be exerted after the combination and the connection, the assembly extending mechanisms at the two ends are connected through a plurality of groups of supporting modules, along with the increase of the tunnel mining depth, the supporting mechanism in the tunnel is moved and butted and supported through the supporting modules, the structure is reasonable, only two ends in the tunnel are required to be supported through two inverted arch supporting structures, and the middle section of the tunnel is butted and supported through the light-weight supporting modules, the support structure inside the tunnel is expanded and connected, lightweight support is guaranteed, practicability and applicability coexist, and multi-point stable support is achieved after combination.
2. Can realize the interconnection and support, improve bearing structure's atress characteristic greatly, be convenient for simultaneously realize carrying out the extension that supports the position when exploiting the extension, in time give sufficient holding power, guarantee the inside security in tunnel.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a supporting module according to the present invention;
FIG. 3 is a schematic view of the supporting mechanism of the present invention;
FIG. 4 is a schematic view of an edge support plate according to the present invention;
FIG. 5 is a schematic diagram of a locking plate according to the present invention;
FIG. 6 is a schematic view of the construction of the internal ceiling of the present invention;
FIG. 7 is a schematic structural view of an inverted arch support plate II according to the present invention;
FIG. 8 is a schematic structural diagram of a supporting mechanism according to the present invention.
In the figure: 1. a support module; 2. a tunnel; 3. a support mechanism; 4. a connecting mechanism; 5. assembling an extension mechanism; 301. a base; 302. a support frame; 303. a first inverted arch support plate; 304. a corner butt joint piece; 305. an edge support plate; 306. connecting the cross bars; 308. a top support frame; 309. an internal reinforcing structure; 310. butting a screw rod; 311. a side guard plate; 312. a locking plate; 313. a locking groove; 314. butting the convex plates; 315. a locking lever; 316. turning a handle; 317. locking the screw rod; 318. a lateral reinforcement bar; 320. a tension rod is arranged inside; 321. a top plate is arranged inside; 322. connecting grooves; 323. an end connecting plate; 324. a cross bar is arranged inside; 325. a bottom fixing bracket; 401. an extension connector; 402. extending the connecting rod; 403. a second inverted arch support plate; 501. a bottom stabilizing plate; 502. erecting a rod; 503. supporting the side rods; 504. mounting grooves; 505. a fixed bracket; 506. a guide bar; 507. a third inverted arch support plate; 508. adjusting the screw rod; 509. extending the butt-joint plate; 510. a middle mounting plate; 511. an internal reinforcing cage.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example one
Referring to fig. 1-8, an adjustable reverse arch type supporting member for tunnel and bridge construction comprises a tunnel 2, two supporting mechanisms 3 and a plurality of groups of supporting modules 1 arranged in the tunnel 2;
each group of supporting modules 1 comprises a connecting mechanism 4 and an assembling and extending mechanism 5;
the supporting mechanism 3 comprises a base 301, a supporting frame 302 and a first inverted arch supporting plate 303, wherein the supporting frame 302 is detachably connected to the top of the base 301, and the first inverted arch supporting plate 303 is detachably connected to the top of the supporting frame 302;
the connecting mechanism 4 comprises a second anti-arch supporting plate 403 and two extending connecting rods 402 symmetrically arranged at the bottom of the second anti-arch supporting plate 403, and two ends of each extending connecting rod 402 are fixedly connected with extending connecting pieces 401;
the assembly extension mechanism 5 comprises an internal reinforcing frame 511, two upright posts 502 symmetrically arranged at two sides of the internal reinforcing frame 511, and a middle mounting plate 510 horizontally arranged at the top of the internal reinforcing frame 511, wherein two sides of the internal reinforcing frame 511 are detachably connected with the side walls of the adjacent upright posts 502, two sides of the bottom of the middle mounting plate 510 are respectively detachably connected with the top ends of the two upright posts 502, and the top of the middle mounting plate 510 is connected with an inverted arch support plate III 507 through a fixed support 505;
each extension connector 401 adjacent to the support frame 302 is removably coupled to a side wall of the support frame 302 and each extension connector 401 adjacent to the center mount plate 510 is removably coupled to a side wall of the center mount plate 510.
According to the above embodiments: during tunnel exploitation, install two supporting mechanism 3 to the inside both ends position in tunnel and support the top in tunnel, the inside middle position in tunnel, support and be connected with two supporting mechanism 3 through supporting module 1, supporting frame 302 and a 303 formation of anti-arch backup pad support anti-arch supporting structure and support 2 inside both ends position in tunnel, the supporting mechanism 3 of one end is connected with equipment extension mechanism 5 through coupling mechanism 4, the supporting mechanism 3 of the other end is connected with equipment extension mechanism 5 through coupling mechanism 4, connect through a plurality of groups supporting module 1 between the equipment extension mechanism 5 at both ends, along with the increase of tunnel 2 exploitation degree of depth, it can to remove 2 inside supporting mechanism 3 in tunnel and dock and support through supporting module 1, rational in infrastructure, only need to support the inside both ends in tunnel through two anti-arch bearing structure, tunnel middle section position through lightweight supporting module 1 dock each other and support can, can realize supporting and interconnect, the atress characteristic of supporting structure has been improved greatly.
Example two
Referring to fig. 1 to 8, the bottom of the first inverted arch support plate 303 is connected with the top of the support frame 302 through a top support frame 308, a plurality of internal reinforcing structures 309 are fixedly connected to the inside of the top support frame 308, edge support plates 305 attached to the inner wall of the first inverted arch support plate 303 are respectively arranged on both sides of the top support frame 308, one side of each edge support plate 305 is fixedly connected with the top support frame 308 through a connecting cross rod 306, a corner abutting piece 304 matched with the corner of the top of the support frame 302 is fixedly connected to one side of the bottom of the connecting cross rod 306, a plurality of built-in tightening rods 320 are obliquely arranged on both sides of the inside of the support frame 302, a plurality of built-in cross rods 324 are arranged on the other two sides of the inside of the support frame 302 along the vertical direction of the support frame 302, and both ends of each built-in cross rod 324 are detachably connected with the inner wall of the adjacent support frame 302, two ends of each built-in tension rod 320 are fixedly connected with the inner wall of the adjacent supporting frame 302, two ends of each built-in transverse rod 324 are fixedly connected with end connecting plates 323, the opposite ends of the two end connecting plates 323 are respectively provided with a connecting groove 322 matched with the supporting frame 302, the side wall of the supporting frame 302 is fixedly connected with a side wall bolt of the connecting groove 322, two sides of the top of the base 301 are respectively fixedly connected with side guard plates 311, the top of one side corresponding to the two side guard plates 311 is respectively fixedly connected with a locking plate 312 by a bolt, the centers of two sides of the bottom of the inner cavity of the supporting frame 302 are respectively provided with a locking groove 313 matched with the locking plate 312, a locking rod 315 is horizontally arranged between the two locking plates 312, two ends of the locking rod 315 are respectively rotatably connected with a locking screw 317 by a rotating handle 316 which is rotatably connected, and one end corresponding to the two locking plates 312 is respectively provided with a locking screw hole matched with the locking screw 317, a plurality of butt joint screw rods 310 with one ends fixedly connected with the top of the base 301 are vertically arranged at the top of the base 301 and between the two side guard plates 311, a plurality of butt joint holes matched with the butt joint screw rods 310 are arranged at the bottom of an inner cavity of the supporting frame 302, the top end of each butt joint screw rod 310 is in threaded connection with a butt joint nut, a plurality of butt joint convex plates 314 are fixedly connected with the tops of the two sides of the supporting frame 302, a plurality of side reinforcing rods 318 are obliquely arranged at the two sides of the supporting frame 302, one end of each side reinforcing rod 318 is connected with the butt joint convex plate 314, the other end of each side reinforcing rod 318 is connected with the top of the base 301, a bottom fixing support 325 is vertically arranged at the center of the inner cavity of the supporting frame 302, the top end of the bottom fixing support 325 is fixedly connected with a built-in top plate 321 contacted with the top of the inner cavity of the supporting frame 302, and the bottom end of the bottom fixing support 325 is fixedly connected with a top bolt of the base 301, the corresponding one side of two pole settings 502 all sets up the mounting groove 504 with inside reinforcing frame 511 lateral wall looks adaptation, the equal slope in one side that two pole settings 502 are relative is provided with the support side lever 503, the equal fixedly connected with bottom steadying plate 501 of bottom end portion of two pole settings 502, the one end of support side lever 503 and the lateral wall fixed connection of pole setting 502, the other end is connected with the top of bottom steadying plate 501, the both sides of inside reinforcing frame 511 all with the inner wall bolt fixed connection of adjacent mounting groove 504, the equal fixedly connected with in both sides of well-established mounting panel 510 and the extension butt plate 509 of extension connecting piece 401 looks adaptation, the equal fixedly connected with one end in bottom both sides of three 507 in anti-arching support plate runs through the guide arm 506 of fixed bolster 505 through the sliding sleeve, the bottom center department of three 507 in anti-arching support plate rotates and is connected with one end and runs through adjusting screw 508 of fixed bolster 505 through the swivel nut.
According to the above embodiments: when the tunnel is mined, two supporting mechanisms 3 are arranged at two ends inside the tunnel to support the top of the tunnel, the middle position inside the tunnel is supported by the supporting module 1 and is connected with the two supporting mechanisms 3, a base 301, a supporting frame 302 and an inverted arch supporting plate 303 of each supporting mechanism 3 form a supporting inverted arch type supporting structure to support two ends inside the tunnel 2, the base 301 is connected with the supporting frame 302 through a butt joint screw 310, a side protecting plate 311, a locking plate 312 and a locking rod 315 and is stably supported by the base 301, the inverted arch supporting plate 303 is connected with the supporting frame 302 through a top supporting frame 308, an internal reinforcing structure 309, an edge supporting plate 305 and a corner butt joint piece 304, the supporting strength and the stability are effectively improved, and the supporting strength and the stability are effectively improved through the arrangement of a built-in top plate 321, a bottom fixing frame 325, a built-in tensioning rod 320, a built-in cross rod 324 and a side reinforcing rod 318, the supporting strength of the supporting frame 302 is greatly improved, the supporting mechanism 3 at one end is connected with the assembly extending mechanism 5 through the connecting mechanism 4, the supporting mechanism 3 at the other end is connected with the assembly extending mechanism 5 through the connecting mechanism 4, the connecting mechanism 4 realizes the dual functions of connection and support through the extending connecting rod 402 and the inverted arch supporting plate II 403, the assembly extending mechanism 5 ensures the supporting strength while realizing light weight through the arrangement of the internal reinforcing frame 511 and the inverted arch supporting plate III 507, the supporting force at the middle section of the tunnel 2 can be ensured, the integral supporting stress characteristic can be exerted after combined connection, the assembly extending mechanisms 5 at the two ends are connected through a plurality of groups of supporting modules 1, along with the increase of the mining depth of the tunnel 2, the supporting mechanism 3 in the tunnel 2 is moved and is butted and supported through the supporting modules 1, it is rational in infrastructure, only need support the inside both ends in tunnel through two anti-arch form bearing structure, tunnel middle section position through lightweight support module 1 carry on each other dock support can, realized carrying out the expanded connection to the bearing structure of 2 inside in tunnel, guarantee the lightweight simultaneously and support, the practicality coexists with the suitability, can realize carrying out the multiple spot stable stay after the combination.
EXAMPLE III
Referring to fig. 1 to 8, a method of using an adjustable reverse arch support member for tunnel bridge construction, includes: during the tunnel exploitation, install two supporting mechanism 3 and support the top in tunnel to the inside both ends position in tunnel, the inside middle position in tunnel, support and be connected with two supporting mechanism 3 through supporting module 1, supporting mechanism's 3 base 301, supporting frame 302 and a 303 formation of anti-arch backup pad support the supporting construction of anti-arch type and support 2 inside both ends positions in tunnel, the supporting mechanism 3 of one end is connected with equipment extending mechanism 5 through coupling mechanism 4, the supporting mechanism 3 of the other end is connected with equipment extending mechanism 5 through coupling mechanism 4, connect through a plurality of groups supporting module 1 between the equipment extending mechanism 5 at both ends, along with the increase of tunnel 2 exploitation degree of depth, it can to remove the inside supporting mechanism 3 in tunnel 2 and dock and support through supporting module 1.
According to the above embodiments: can realize the interconnection and support, improve bearing structure's atress characteristic greatly, be convenient for simultaneously realize carrying out the exploitation and extend the extension of carrying out the support point position, in time give sufficient holding power, guarantee the security of 2 insides in tunnel.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. An adjustable reverse arch support member for tunnel bridge construction, comprising:
the tunnel (2), the two supporting mechanisms (3) and a plurality of groups of supporting modules (1) arranged in the tunnel (2);
each group of the supporting modules (1) comprises a connecting mechanism (4) and an assembling and extending mechanism (5);
the supporting mechanism (3) comprises a base (301), a supporting frame (302) and a first inverted arch supporting plate (303), wherein the supporting frame (302) is detachably connected to the top of the base (301), and the first inverted arch supporting plate (303) is detachably connected to the top of the supporting frame (302);
the connecting mechanism (4) comprises a second inverted arch supporting plate (403) and two extending connecting rods (402) symmetrically arranged at the bottom of the second inverted arch supporting plate (403), and two ends of each extending connecting rod (402) are fixedly connected with extending connecting pieces (401);
the assembly extension mechanism (5) comprises an internal reinforcing frame (511), two upright posts (502) symmetrically arranged on two sides of the internal reinforcing frame (511) and a middle mounting plate (510) horizontally arranged at the top of the internal reinforcing frame (511), wherein two sides of the internal reinforcing frame (511) are detachably connected with the side walls of the adjacent upright posts (502), two sides of the bottom of the middle mounting plate (510) are respectively detachably connected with the top ends of the two upright posts (502), and the top of the middle mounting plate (510) is connected with a third inverted arch support plate (507) through a fixing support (505);
each extension connecting piece (401) close to the supporting frame (302) is detachably connected with the side wall of the supporting frame (302), and each extension connecting piece (401) close to the middle mounting plate (510) is detachably connected with the side wall of the middle mounting plate (510).
2. An adjustable inverted arch support structure for tunnel bridge construction according to claim 1, wherein the bottom of the inverted arch support plate one (303) is connected with the top of the support frame (302) through a top support frame (308), and a plurality of internal reinforcing structures (309) are fixedly connected to the inside of the top support frame (308).
3. The adjustable inverted arch type supporting member for tunnel bridge construction according to claim 2, wherein the top supporting frame (308) is provided at both sides thereof with edge supporting plates (305) attached to the inner walls of the inverted arch supporting plates I (303), one side of each edge supporting plate (305) is fixedly connected to the top supporting frame (308) through a connecting cross bar (306), and one side of the bottom of the connecting cross bar (306) is fixedly connected to corner abutments (304) adapted to the top corners of the supporting frame (302).
4. An adjustable inverted arch support structure for tunnel bridge construction according to claim 1, wherein a plurality of built-in tension rods (320) are obliquely arranged on two sides of the inside of the support frame (302), a plurality of built-in cross rods (324) are arranged on the other two sides of the inside of the support frame (302) and along the vertical direction of the support frame (302), two ends of each built-in cross rod (324) are detachably connected with the inner wall of the adjacent support frame (302), and two ends of each built-in tension rod (320) are fixedly connected with the inner wall of the adjacent support frame (302).
5. The adjustable inverted arch support structure for tunnel bridge construction according to claim 4, wherein the two ends of the built-in cross bar (324) are fixedly connected with end connecting plates (323), the opposite ends of the two end connecting plates (323) are respectively provided with connecting grooves (322) matched with the supporting frame (302), and the side walls of the supporting frame (302) are fixedly connected with the side walls of the connecting grooves (322) through bolts.
6. The adjustable inverted arch support member for tunnel bridge construction according to claim 5, wherein side guard plates (311) are fixedly connected to both sides of the top of the base (301), locking plates (312) are fixedly connected to the tops of two corresponding side guard plates (311) by bolts, locking grooves (313) matched with the locking plates (312) are formed in the centers of both sides of the bottom of the inner cavity of the support frame (302), locking rods (315) are horizontally arranged between the two locking plates (312), locking handles (316) connected by rotation are rotatably connected to both ends of each locking rod (315), locking screw holes matched with the locking screw rods (317) are formed in one corresponding end of each locking plate (312), a plurality of butt-joint screw rods (310) fixedly connected to the top of the base (301) are vertically arranged between the tops of the two side guard plates (311) at the top of the base (301), a plurality of butt-joint holes matched with the butt-joint screw rods (310) are formed in the bottom of the inner cavity of the support frame (302), a plurality of reinforcing screw rods (314) are arranged on the tops of the side butt-joint screw rods (314), and a plurality of reinforcing screw rods (318) are arranged on the bottoms of the side butt-joint screw rods (314), and each reinforcing screw rods (314) connected to the side of the support frame (302), and the reinforcing screw rods (314) And the other end of the support frame is connected with the top of the base (301), a bottom fixing support (325) is vertically arranged at the center of the inner cavity of the support frame (302), the top end part of the bottom fixing support (325) is fixedly connected with a built-in top plate (321) which is in contact with the top of the inner cavity of the support frame (302), and the bottom end part of the bottom fixing support (325) is fixedly connected with a top bolt of the base (301).
7. The adjustable inverted arch support structure for tunnel bridge construction according to claim 1, wherein one side of each of the two vertical rods (502) is provided with an installation groove (504) adapted to a side wall of the internal reinforcing frame (511), one side of each of the two vertical rods (502) opposite to the vertical rod is provided with a support side rod (503) in an inclined manner, bottom end portions of the two vertical rods (502) are fixedly connected with a bottom stabilizing plate (501), one end of each support side rod (503) is fixedly connected with the side wall of the vertical rod (502), the other end of each support side rod is connected with the top of the bottom stabilizing plate (501), two sides of the internal reinforcing frame (511) are fixedly connected with inner wall bolts of the adjacent installation groove (504), two sides of the middle mounting plate (510) are fixedly connected with extension butt plates (509) adapted to the extension connecting members (401), two sides of the bottom of the inverted arch support plate (507) are fixedly connected with guide rods (506) having one end extending through the fixed support (505) by sliding sleeves, and an adjusting screw rod (508) having one end extending through the fixed support (505) is rotatably connected to the center of the bottom of the inverted arch support plate (507).
8. A method of using an adjustable reverse arch support member for tunnel bridge construction, which comprises using an adjustable reverse arch support member for tunnel bridge construction according to any one of claims 1 to 7, comprising: when the tunnel is mined, two supporting mechanisms (3) are installed to the two ends of the inside of the tunnel to support the top of the tunnel, the middle position of the inside of the tunnel is supported through a supporting module (1) and is connected with the two supporting mechanisms (3), a base (301) of each supporting mechanism (3), a supporting frame (302) and an inverted arch supporting plate I (303) form a supporting structure supporting inverted arch type supporting structure to support the two ends of the inside of the tunnel (2), the supporting mechanism (3) at one end is connected with an assembly extension mechanism (5) through a connecting mechanism (4), the supporting mechanism (3) at the other end is connected with the assembly extension mechanism (5) through a connecting mechanism (4), the assembly extension mechanisms (5) at the two ends are connected through a plurality of groups of supporting modules (1), the mining depth of the tunnel (2) is increased, and the supporting mechanism (3) inside the tunnel (2) is moved and is butted and supported through the supporting modules (1).
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| CN202210450311.2A CN114738008B (en) | 2022-04-24 | 2022-04-24 | Adjustable reverse arch type supporting member for tunnel bridge construction and use method thereof |
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| CN114738008A (en) | 2022-07-12 |
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