CN1306150A - Reinforcing bar netted chock and netted-shell bolting and shotcrete support - Google Patents

Reinforcing bar netted chock and netted-shell bolting and shotcrete support Download PDF

Info

Publication number
CN1306150A
CN1306150A CN 00119101 CN00119101A CN1306150A CN 1306150 A CN1306150 A CN 1306150A CN 00119101 CN00119101 CN 00119101 CN 00119101 A CN00119101 A CN 00119101A CN 1306150 A CN1306150 A CN 1306150A
Authority
CN
China
Prior art keywords
net
muscle
shell
reinforcement
support
Prior art date
Application number
CN 00119101
Other languages
Chinese (zh)
Other versions
CN1163660C (en
Inventor
郭兰波
庞建勇
Original Assignee
郭兰波
庞建勇
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 郭兰波, 庞建勇 filed Critical 郭兰波
Priority to CNB001191012A priority Critical patent/CN1163660C/en
Publication of CN1306150A publication Critical patent/CN1306150A/en
Application granted granted Critical
Publication of CN1163660C publication Critical patent/CN1163660C/en

Links

Abstract

A reinforcing bar netted-shell support and its bolting and shotcrete support for mine gallery or tunnel technically features that an arc or plate member with linking plates at its both ends is made up of steel bars by welding, and is used as the supporting member. Several said members can be linked together by screw bolts of form a support. SAid supports can be continuously installed one by one. It can be used individually or in conjunction with anchor stock and sprayed layer to form a netted-shell bolting and shotcrete structure for soft rock gallery or large-cross-section tunnel.

Description

Steel mesh reinforcement shell support and wire-shell bolting shotcrete supporting
The invention belongs to mine working and tunnel support technical field.
When in soft stratum, building mine working and tunnel, because geostatic pressure is strong, the stability of braced structures and supporting capacity need to strengthen significantly, colliery Deep Soft Rock Tunnel for example, the enabling capabilities of anchor net spray supporting and protection structure commonly used is significantly not enough, generally adds shape steel bracket again with the anchor spray or wall rock grouting or long anchor cable etc. carry out combined supporting.Similar situation is also arranged in the construction of tunnel.Like this, support engineering amount and expense must increase considerably, and the supporting operation is also complicated.Another kind of technology path is the supporting and protection structure lightness, and as the development and the application of reinforcing bar lattice support, it is the laced beam arch structure thing that is welded into reinforcing bar, has alleviated weight support frame, has reduced the support cost.Former West Germany develops this support in nineteen eighty-three, and is applied in West Germany, Austria, Switzerland tunnel and subway engineering and (sees Braun, W.M (1983).Lattice?Girders?Offer?Economy?And?Performance?For?Tunnel?Support.Tunnels&Tunnelling,May,15/5,19-22)。China uses reinforcing bar lattice support to make the cage of reinforcement of first lining cutting the eighties (to see 1987 (4) first in the Beijing Metro engineering, " tunnel construction ", the development of large span lattice steel bow member structure is identified by office's level with application), then in railway and highway tunnel engineering, also be applied.To the nineties, this kind form of structure is also used (seeing that Pang Jun is brave etc., the research of tunnel support technology in the bad rock stratum of the region of high stress, northeast colliery engineering, 1994, N04,18/13) to some extent in the coal-mine soft-rock tunnel, and its form of structure never has big variation.
Though reinforcing bar lattice support has lightweight advantage, has weakened the stability of support simultaneously, cause whole unstability because of local distortion easily.This has limited its range of application greatly, the general frame of putting more energy into of only making spray-up with it, but concrete is still the vulnerable area of supporting, integrated support limited ability system between frame, be difficult to bear strong deformation ground and press, therefore do not have widely-usedly at the coal-mine soft-rock roadway engineering.The effective way that overcomes reinforcing bar lattice support shortcoming is that it is developed into underground latticed shell structure, keeps the advantage that it is in light weight, rolled steel dosage is few, and the spatial stability of support and supporting capacity are improved greatly.
The objective of the invention is to each several parts such as coupling bar between the camber of common metal support, wire lath, frame are merged the space net shell structure of forming integral body, be designed to light-duty steel mesh reinforcement mould component, in order to form steel mesh reinforcement shell support, its stability and supporting capacity obviously strengthen than canopy formula reinforcing bar lattice support, the general mine working of supporting separately, the supporting expense is than using shape steel bracket to reduce significantly, also be suitable for forming the wire-shell bolting shotcrete structure with itself and anchor pole, sprayed mortar, pressure soft rock tunnel, supporting highland, workings subject to dy namic pressure and tunnel etc.
The basic building block of steel mesh reinforcement shell support is the arc plate shape net mould component 1 and plate shaped net mould component 2 that reinforcing bar is welded into.The both sides of every Pin member are the lattice frames 20 that reinforcing bar is formed, and two ends are the gusset piece 3 that 3-5 bolt hole made and had to steel plate, are carriage with the steel plate at lattice frame and two ends, are supporting the double steel bar net of inside.Its outer reinforcement net 9 is arc surfaced or planar shaped graticules, can be directly and the surface, tunnel fit, internal layer steel mesh reinforcement 10 is the continuous arch nets of arch net or multispan, by it outer steel mesh reinforcement is carried in the span of arch and being supported.The reinforcing bar in length and breadth of double steel bar net and interlayer bearing rod etc. are in space crossed combination, form numerous little spans space bow member, and link each other and form stable housing, can bear three-dimensional load and dynamic load, adding it is the stronger supporting frame of rigidity all around, thereby every Pin member has stability and all stronger three dimensional support structure of enabling capabilities of one's own.
Every steel mesh reinforcement shell support is by the correct assembly unit of the above-mentioned net mould component of 3-6 Pin, form with Bolt Connection.Itself has certain flexible yielding property energy, in addition, can also embed wooden or rubber mat plate at the component connector place, makes support that certain contractibility also be arranged.That the profile of support can be is trapezoidal, arch, sealing water chestnut arch or circle etc., selects for use arc plate shape net mould component or plate shaped net mould component to assemble according to the drift section shape.The external surface of support directly is adjacent to the surface, tunnel, does not need to establish backboard or steel mesh reinforcement in addition, should use sprayed mortar or other charges to tamp but super sky digs the crack.Assembly unit continuously between frame and the frame, spacing do not need to set up connector between frame, thereby its installation procedure is not simpler than metal shed yet.Simultaneously, it is again continuous support, and resistance to overturning and enabling capabilities are stronger, medium stable reaching under the more unsettled wall rock condition, and can be separately in order to the general mine working of supporting.
When formation condition is very poor, the common anchor spray can be constituted jointly the wire-shell bolting shotcrete structure with steel mesh reinforcement shell support, carry out roadway support, its composition mode and common anchor net spray supporting are similar, that is carry out initial support with anchor pole, continous way steel mesh reinforcement shell support and thin spray-up earlier, spray a layer concrete subsequently again steel mesh reinforcement shell support is covered, finish permanent support.The difference of wire-shell bolting shotcrete supporting and common anchor net spray supporting is: first, increased substantially the support force of initial support, when the flexibility of utilizing steel mesh reinforcement shell support self discharges a part of surrouding rock deformation, provide uniformly powerful to the country rock surface again and support, can prevent wall rock loosening and lose globality; Second, spray after the coagulation again, spray-up is that fragment packets is trapped among within numerous little span space net shells, what concrete was suffered draws shear stress little, intensity can be given full play to, and toughness strengthens to some extent, simultaneously, but the reducer coupling head of support makes spray-up that certain contractibility also be arranged, and presses and presses with adopting thereby make spray-up also can bear the shifting ground.
The technology of steel mesh reinforcement shell support and wire-shell bolting shotcrete supporting realizes that key is the form of structure of its arc plate shape net mould component 1 and plate shaped net mould component 2.In order to make support be easy to processing and manufacturing, and can adapt to the supporting needs of different roadway engineering conditions, novel four kinds of latticed shell structure forms that provide are provided for this, are respectively described below:
Light-duty inner bearing type net mould component.The outer reinforcement net 9 of this kind net mould component is by straight section horizontal-associate muscle 14 welding formings of four vertical bone reinforcing bars 12 with some equidistant placement, internal layer steel mesh reinforcement 10 by two chord members 11 add two interior iliacus 13, with arc horizontal-associate muscle 15 welding formings of some equidistant placement.The longitudinal reinforcement of arc plate shape net shell all curves circular arc, and the longitudinal reinforcement of plate shaped net shell all is straight muscle; Chord member 11 constitutes the side of steel mesh reinforcement 10, and its spacing is slightly larger than two vertical iliacus spacings of steel mesh reinforcement 9 sides; Two interior iliacus are positioned at horizontal arch middle part, and its spacing is slightly less than steel mesh reinforcement 9 middle parts two vertical iliacus spacings, and arc horizontal-associate spacing equates with the straight section horizontal-associate muscle spacing of steel mesh reinforcement 9.The assembling mode of net shell is, with four zigzag setback muscle 16 steel mesh reinforcement 9 supports are stood in reinforcing bar 10 tops, make the position of internal layer arc horizontal-associate muscle and outer straight section horizontal-associate staggered up and down, the node of the node of internal layer steel mesh reinforcement and outer reinforcement net about the space becomes, criss-cross arrangement, every setback muscle just in time can carry over a pair of longitudinal reinforcement up and down, laterally tiltedly upright with the node corresponding welding of increment with steel mesh reinforcement, respectively weld a gusset piece 3 at net shell two ends then, constitute a Pin arc plate shape or a plate shaped support element.The design feature of this kind net shell is, the every side of member is a chord member, a vertical iliacus and the two purlin formula lattice frames 20 that the setback muscle is formed, simultaneously, the profile of tooth support handle of four setback muscle horizontal-associate muscle frame up and down founds into numerous little span space frames, and is connected into whole space net shell by longitudinal reinforcement.The spatial stability of member is good, certain supporting capacity is arranged, but flexibility is stronger, is suitable for forming the falsework of general mine working and the cage of reinforcement of spray-up.
Reinforced inner bearing type net mould component.The outer reinforcement net 9 of this kind net shell is by straight section horizontal-associate muscle 14 welding formings of the vertical iliacus 12 of the six roots of sensation with some equidistant placement, internal layer steel mesh reinforcement 10 still by two chord members 11 add two interior iliacus 13, with arc horizontal-associate muscle 15 welding formings of some equidistant placement, but the chord member spacing reduces, it is horizontal wide by 4/5 to make the horizontal span of arch equal steel mesh reinforcement 9, its two interior iliacus still are configured in horizontal arch middle part, and the spacing of the two vertical iliacus in gap ratio steel mesh reinforcement 9 middle parts is smaller.With six roots of sensation zigzag setback muscle 16 steel mesh reinforcement 9 is supported on steel mesh reinforcement 10 tops, make chord member 11 just in time be arranged in the below of each two vertical iliacus of outer both sides, the position of each arc horizontal-associate muscle and straight section horizontal-associate muscle is staggered up and down, the node of inside and outside two-layer steel mesh reinforcement about the space becomes, criss-cross arrangement.The configuration mode of setback muscle is: stand between interior iliacus 13 and the outer middle two vertical iliacus with two setback muscle framves, it is one group with two setback muscle in addition, to descend increment in twos and close and be welded on the chord member, the horizontal held separate of last increment two vertical iliacus of outer every side.The pad of each setback muscle overlaps with the node of double steel bar net all accordingly.A gusset piece 3 is still respectively welded at two ends at the net shell, forms a Pin arc plate shape or a flat bracket member.The design feature of this kind net shell and light-duty inner bearing type net shell are basic identical, that is within frame, form numerous little span space frames by reinforcing bar in length and breadth and four setback muscle cross-join of double steel bar net, and link each other and form space net shell.The difference of it and light-duty inner bearing type net shell is: the horizontal span of arch of net shell reduces, and it is the lattice frame 20 of del that every side has respectively been formed cross section by a chord member, two vertical iliacus and two setback muscle, thereby the stability of member each several part and rigidity are all strengthened, can increase substantially the supporting capacity of member, can be in order to form steel mesh reinforcement shell support, extremely unstable mine working of supporting and large cross-section tunnel etc.
Light-duty coupling formula net mould component.This kind net shell can adopt following measure to realize: add that with 14,1 arc horizontal-associate muscle 15 of 1 straight section horizontal-associate muscle two V muscle 17 are one group, give and make one pair of flat bridge shape frame 18, its V-arrangement muscle is welded in the straight-bar two ends as the bridge leg, arched ribs is welded between two legs, and will encircle the stage casing of the stage casing of arc and straight-bar and close welding, with strengthen across rigidity.In addition, prepare the vertical iliacus 12 of the six roots of sensation and two chord members 11 by the shape requirement of member, eight longitudinal reinforcements of arc plate type member all curve circular arc, and eight longitudinal reinforcements of flat plate-shaped member all are straight muscle.During assembling net shell, earlier with two chord member location, thereon equidistant placement, laterally stride vertical position welding and connect some pairs of flat bridge shape framves, then the vertical iliacus of the six roots of sensation equidistantly is arranged on each flat bridge shape frame, be welded into the outer reinforcement net 9 of arc surfaced or planar shaped with the straight section cross bar, so just formed the lattice frame 20 of internal layer steel mesh reinforcement 10 and member both sides simultaneously.Its steel mesh reinforcement 10 be by two chord members add outer in the middle of two vertical iliacus, connect with each arc horizontal-associate muscle and to form, and horizontal arch coupling is associated in the middle part of steel mesh reinforcement 9, form the double-layer latticed shell structure thing, its lattice frame 20 is added two vertical iliacus of outer every side, is formed by V-arrangement bridge leg frame is upright by chord member, and the cross section is a del.Respectively weld a gusset piece 3 at last at net shell two ends and form a Pin support element.The design feature of this net shell is: saved interior iliacus and inner bay stud, but strengthened the horizontal kiln crown of internal layer steel mesh reinforcement, thereby guarantee that the net shell still has good spatial stability and stronger three-dimensional supporting capacity, can be in order to form steel mesh reinforcement shell support, the general mine working of supporting, also can spray associating use, supporting soft-rock tunnel and workings subject to dy namic pressure with common anchor.
Light-duty multi-arch type net mould component.The composition measure of this kind net shell and light-duty coupling connection formula net shell are similar, that is earlier with straight section horizontal-associate muscle 14, arc horizontal-associate muscle 15 and V-arrangement muscle 17 give makes some pairs of flat bridge shape framves 18, per two V-arrangement muscle are as the bridge leg, be welded in the two ends of a straight section horizontal-associate muscle respectively, arc horizontal-associate muscle of welding between the bridge leg is to strengthen across the middle part support force.Its arc horizontal-associate muscle has two kinds of rises: a kind of rise is bigger, arch arc stage casing can be directly with straight section horizontal-associate muscle stage casing and close welding: another kind of rise is high half of bridge, and welding two short sections are stood and supportted side by side at arch arc middle part, are supporting the stage casing of straight section horizontal-associate muscle.Longitudinal reinforcement still is the vertical iliacus 12 of the six roots of sensation and two chord members 11, and the interior iliacus 13 of arch is striden by two companies of curving of preparation that still need in addition.During assembling net shell, with two chord member location, equidistantly arrange thereon earlier, laterally stride vertical position welding and connect some pairs of flat bridge shape framves 18, and stand one pair low arch-shaped every two pairs high arch-shaped setting up.Then two companies are striden arch in-seam flaccidity of tendon and muscle between the horizontal arch that inserts each plane crane span structure, be welded into to connect with two kinds of arc horizontal-associate muscle of height and stride dome shape internal layer steel mesh reinforcement 10.Again the vertical iliacus of the six roots of sensation equidistantly is arranged on each flat bridge shape frame, be welded into outer reinforcement net 9 with straight section horizontal-associate muscle, and respectively weld a slice gusset piece 3 at net shell two ends, just having formed external surface is cambered surface or planar shaped steel mesh reinforcement, inner for even striding the dome net, both sides are three purlin lattice frames, and two ends have a Pin support element of gusset piece.This member not only spatial stability is strong, and utilizes the continuous dome net of little span fully to weaken the suffered flexural stress of reinforcing bar, and the supporting capacity of member is improved.It both can form steel mesh reinforcement shell support, the supporting mine working also is suitable for supportting afterwards earlier and sprays separately, utilizes numerous little span dome net shells to make concrete cage of reinforcement, increase substantially the enabling capabilities of spray-up, the extremely unstable tunnel of supporting, workings subject to dy namic pressure and large-section underground etc.
This is suitable for novel and existing roadway support structure and compares, and has the following advantages:
1. the rolled steel dosage of support is few, and is in light weight, easy for installation, and under same engineering specifications, the supporting expense is than using shape steel bracket to reduce more than 40%.
2. the basic building block of support is made with the reinforcing bar weldering, the technical specification seriation, and material source is wide, is easy to processing, general factories and miness processing and manufacturing on the spot.
3. the mechanical property of support is superior, and existing certain flexibility yielding property energy has very strong spatial stability and enabling capabilities again, and is continous way space braced structures, mine working that can the various section configurations of supporting, large-section underground and tunnel etc.
4. steel mesh reinforcement shell support adds anchor pole and spray-up composition wire-shell bolting shotcrete structure, can weaken effectively spray-up suffered draw shear stress, give full play to concrete intensity, strengthen the toughness of spray-up, can press in order to the supporting highland, roadway with large deformation and back production workings subject to dy namic pressure, and support process is simple, and the supporting expense can reduce significantly.
Description of drawings:
Fig. 1 is that steel mesh reinforcement shell support is formed schematic diagram;
Fig. 2 is a shape of a hoof close-network shell bolt-spary supports structural representation:
Fig. 3 is light-duty inner bearing type net mould component schematic top plan view;
Fig. 4 is light-duty inner bearing type net mould component I-I section cross-sectional schematic;
Fig. 5 is arc template net mould component II-II section cross-sectional schematic;
Fig. 6 is plate net mould component II-II section cross-sectional schematic;
Fig. 7 is a net mould component gusset piece welding schematic diagram;
Fig. 8 is a net mould component node welding schematic diagram;
Fig. 9 is reinforced inner bearing type net mould component schematic top plan view;
Figure 10 is reinforced inner bearing type net mould component I-I section cross-sectional schematic;
Figure 11 is light-duty coupling connection formula net mould component schematic top plan view;
Figure 12 is light-duty coupling connection formula net mould component I-I section cross-sectional schematic;
Figure 13 is a flat bridge shape shelf structure schematic diagram;
Figure 14 is light-duty multi-arch type net mould component schematic top plan view;
Figure 15 is light-duty multi-arch type net mould component I-I section cross-sectional schematic;
Figure 16 is arc plate shape multi-arch type net mould component II-II section cross-sectional schematic.
By the following examples, in conjunction with the accompanying drawings, this is suitable for novel implementation is described further:
Embodiment one
Present embodiment is under the IV class surrounding rock condition of less stable, uses steel mesh reinforcement shell support to replace shape steel bracket supporting stalk arched tunnel, and every support adds Bolt Connection and forms, as shown in Figure 1 by the correct assembly unit of 3-4 Pin net mould component.New pick tunnel can be carried out supporting construction in the following manner: carry out work plane supporting when interim with the anchor pole of spacing 1.0-1.2M earlier.Hysteresis work plane suitably distance is installed steel mesh reinforcement shell support continuously, whenever installs one, and is closely knit with the secretion that is about to backbreak, and makes the applying of rack outer surface and tunnel surface, and next frame support is installed then.Spacing not between frame and the frame supports continuously to country rock.If engineering specifications need seal the surface, tunnel, then execute the thin-lift concrete of spray thickness 20-30mm at last, with the outer reinforcement net covering of steel mesh reinforcement shell support, finish permanent support.
Present embodiment requires steel mesh reinforcement shell support stability strong, enabling capabilities should reach the respective level of U18-U29 shape steel bracket, thereby its arc plate shape net mould component and plate shaped net mould component employing Figure 11-light-duty coupling connection formula net mould component shown in Figure 13, every Pin member is by two chord members 11, vertical 12, two gusset pieces 3 of iliacus of the six roots of sensation and some pairs of flat bridge shape frame 18 assemblings are welded.Scantling is: bottom width 560-640mm, top width 700-800mm, thickness 120-150mm.Bar gauge is: chord member diameter 18-24mm, vertical iliacus diameter 10-14mm, flat bridge shape frame bar diameter 6-8mm.Gusset piece thickness 6-8mm, every meter net shell quantity of reinforcement 12-20kg.
Embodiment two.
Present embodiment is under unsettled V class surrounding rock condition, carries out roadway support with closed wire-shell bolting shotcrete structure, and drift section is the water chestnut arch, and the crown of every steel mesh reinforcement shell support, both sides Qu Qiang, end arch are respectively formed with a Pin arc plate shape net mould component.The banjo fixing butt jointing place of member all embeds a sheeting caps and adds the capable connection of bolt again.The composition form of supporting and protection structure as shown in Figure 2, sequence of construction is: after the tunnel excavates, earlier carry out work plane temporary lining with the anchor pole of spacing 1.0-1.2M and the thin spray-up of thickness 20mm, hysteresis work plane suitably distance is installed steel mesh reinforcement shell support continuously, to strengthen support force, discharge a part of surrouding rock deformation simultaneously to top group.Execute the concrete of spray thickness 80-120mm then, the Double-level Reticulated Shell beyond the chord member is all covered, form top group wire-shell bolting shotcrete supporting and protection structure.The planted agent lays end arch net shell and concrete at last, in case of necessity, can set up end anchor pole, the net shell is encircleed at the end and floor strata joins together.
In the present embodiment, steel mesh reinforcement shell support should have good stable and certain enabling capabilities, before multiple pneumatically placed concrete, can make country rock discharge a part of distortion gradually and loose damage does not take place, after spraying concrete, the steel mesh reinforcement shell can surround the spray-up burst again, and it is very strong and the liner structure of certain toughness arranged to form support force.Use light-duty inner bearing type net mould component or light-duty multi-arch type net mould component can both reach this kind supporting effect.This example selects for use the light-duty inner bearing type net shell of Fig. 3-shown in Figure 5 as support element, its external surface is four vertical iliacus connect the vertical one-tenth cambered surface that forms with straight section horizontal-associate muscle a steel mesh reinforcement, inner surface is that two chord members add two interior iliacus, connect the steel mesh reinforcement that becomes cambered surface in length and breadth that forms with arc horizontal-associate muscle, upright four zigzag setback muscle of support between the two-layer steel mesh reinforcement, formed numerous little span steel bar frameworks that link each other jointly with net muscle in length and breadth, can bring into play good burst encapsulation concrete.Scantling is: bottom width 600-800mm, top width 520-720mm, thickness 120-150mm.Bar gauge is: chord member diameter 14-20mm, interior iliacus and vertical iliacus diameter 8-12mm, horizontal-associate muscle and setback muscle diameter 6-8mm.Gusset piece thickness 6-7mm, every meter net shell quantity of reinforcement 10-16kg.
Embodiment three.
Present embodiment is under highland pressure, extremely unstable wall rock condition, carry out roadway support with closed wire-shell bolting shotcrete structure, drift section is the water chestnut arch, the crown of every steel mesh reinforcement shell support, both sides Qu Qiang, end arch are still respectively formed with a Pin arc plate shape net mould component, the joint of member embeds sheeting caps, adds bolt again and connects.The composition of supporting and protection structure still as shown in Figure 2, its sequence of construction is identical with embodiment three.
In the present embodiment, the stability of steel mesh reinforcement shell support and enabling capabilities should further be strengthened than embodiment three, reached before spraying coagulation again and can bear the country rock strong deformation, can provide powerful to country rock again supports, spray after the coagulation, the steel mesh reinforcement shell can weaken effectively spray-up suffered draw shear stress, give full play to concrete supporting capacity.Therefore, select for use the light-duty multi-arch type net shell of Figure 14-shown in Figure 16 as support element.Every Pin member is by two chord members 11, and interior 13, two gusset pieces 3 of iliacus of arch are striden by vertical 12, two companies of iliacus of the six roots of sensation and two kinds of different each some pairs of Combination Welding of specification flat bridge shape frame of inner arc rise form.Scantling is: bottom width 560-640mm, top width 700-800mm, thickness 120-200mm.Bar gauge is: chord member diameter 18-24mm, interior iliacus and vertical iliacus diameter 10-14mm, flat bridge shape frame bar diameter 6-10mm.Gusset piece thickness 6-8mm.Every meter net shell quantity of reinforcement 14-24kg.
Embodiment four.
Present embodiment is under unstable wall rock condition, with wire-shell bolting shotcrete structural support large-section underground and tunnel.The chamber section is the stalk arch, and the vault of every steel mesh reinforcement shell support is made up of 2-3 Pin arc plate shape net mould component, and each is made up of the both sides stalk the plate shaped net mould component of a Pin, and whole steel mesh reinforcement support composition form is not with end arch as shown in Figure 1.The sequence of construction of anchor pole, spray-up and steel mesh reinforcement shell support is still as described in the embodiment two, but do not need the planted agent, can be according to the use needs of chamber, making underplate concrete.
In the present embodiment, steel mesh reinforcement shell support must have very strong stability and enabling capabilities, and Figure 14-arcading net mould component shown in Figure 16 or Fig. 9-reinforced inner bearing type net mould component shown in Figure 10 all can adopt.This example is selected reinforced inner bearing type net mould component for use.External surface of structural member is that the vertical iliacus of the six roots of sensation connects the steel mesh reinforcement that forms with the straight section horizontal bar, inner surface is that two vertical iliacus add two interior iliacus, connect the steel mesh reinforcement that forms with arc horizontal-associate muscle, six roots of sensation profile of tooth setback muscle is set between the two-layer steel mesh reinforcement altogether, each puts up three purlin formula lattice frames with a chord member and two vertical iliacus in the every side of member, simultaneously inner double steel bar rack is found into space net shell.Scantling is: bottom width 560-640mm, top width 700-800mm, thickness 150-200mm.Bar gauge is: chord member diameter 22-26mm, interior iliacus and vertical iliacus diameter 12-16mm, horizontal-associate muscle and setback muscle diameter 8-10mm.Gusset piece thickness 6-8mm.Every meter net shell quantity of reinforcement 20-30kg.

Claims (7)

  1. The present invention-steel mesh reinforcement shell support and wire-shell bolting shotcrete supporting are the supporting and protection structure of a kind of light-duty, the high enabling capabilities of underground structures such as mine working and tunnel.
    The architectural feature of steel mesh reinforcement shell support is: various pieces such as coupling bar between the camber of common metal support, wire lath, frame are reassembled into whole plate-shaped latticed shell structure thing, and use the reinforcing bar welding forming, as the basic building block of support.The both sides of every Pin member are the lattice frame that reinforcing bar is formed, and two ends are steel plate gusset piece that make, that have several bolts hole.With lattice frame and two ends steel plate is periphery, supporting inner double steel bar net, its outer reinforcement net is cambered surface or planar shaped graticules, can fit with the surface, tunnel, internal layer is the continuous arch net of arch net or multispan, and by it outer steel mesh reinforcement is provided and to stride interior support.Various reinforcing bars have formed numerous little spans space bow member again in space crossed combination, thereby make member integral body have good three-dimensional stability and stronger supporting capacity.Every steel mesh reinforcement shell support by the correct assembly unit of number Pin net mould components, add Bolt Connection and form, that contoured cradle can be is trapezoidal, arch, sealing water chestnut arch or garden shape etc., its external surface is adjacent to country rock and the part of will backbreaking is tamped, join mutually between frame and the frame, spacing does not carry out continuous supporting to the tunnel.Support itself has certain flexible yielding property energy, in addition, can also embed wooden or rubber mass backing plate at the component connector place of every support, makes support that certain contractibility also be arranged.
    The wire-shell bolting shotcrete supporting is at the country rock soft broken, when geostatic pressure is big, earlier carry out preliminary bracing with anchor pole and continous way steel mesh reinforcement shell support, stop wall rock loosening to destroy, discharging a part of shifting ground simultaneously presses, cover steel mesh reinforcement shell support with spraying coagulation then, form net shell arrangement of reinforcement liner structure, as the permanent support in tunnel.The difference that it and common anchor net spray supporting is: before spraying concrete, the setting load of support is strong, can control the wall rock loosening unstability effectively; After spraying concrete, concrete is that fragment packets is trapped among within numerous little span arch steel mesh reinforcements, and what spray-up was suffered draws shear stress little, and intensity can be given full play to, and simultaneously, but the reducer coupling head of support makes spray-up that certain contractibility also be arranged.This reinforcement manner makes spray-up have certain toughness, and has improved the total supporting capacity of liner structure, can bear inhomogeneous deformation ground and press and dynamic load.
  2. 1. the arc plate shape and the basic building block of plate shaped latticed shell structure thing as support of using the reinforcing bar weldering to make, composition steel mesh reinforcement shell support is in order to underground structures such as supporting mine working and tunnels.The feature of its arc plate shape and plate shaped net mould component is: the both sides of every Pin member are the lattice frame 20 that reinforcing bar is formed, and two ends are the gusset piece 3 that 3~5 bolts hole were made, had to steel plate.With lattice frame 20 and gusset piece 3 is periphery, welding outer reinforcement net 9 and internal layer steel mesh reinforcement 10.Outer reinforcement net 9 is arc surfaced or planar shaped graticules, can fit with the surface, tunnel, internal layer steel mesh reinforcement 10 is the continuous arch net of arch or multispan, and it is supporting the middle part of steel mesh reinforcement 9, and with skin in length and breadth reinforcing bar form numerous little spans space bow member, integral body becomes stable three dimensional network shell structure thing.Every steel mesh reinforcement shell support is added Bolt Connection and is formed by the correct assembly unit of this kind of number Pin net mould component, can embed wooden in the joint or glue colloid backing plate, makes support except that itself having certain flexible yielding property energy, also has certain contractibility.The external surface of support and country rock are fitted, and tamp with sprayed mortar or other charges in the space of backbreaking, and frame and frame join mutually, and spacing does not carry out continuous supporting to the tunnel.
  3. 2. use anchor pole and common supporting soft-rock tunnel of above-mentioned steel mesh reinforcement shell support and workings subject to dy namic pressure.Perhaps apply spray-up subsequently again, form the wire-shell bolting shotcrete structure, as the permanent support in tunnel.
  4. 3. constitute light-duty inner bearing type net mould component according to following form of structure: straight section horizontal-associate muscle 14 welding formings of the vertical iliacus 12 of four of outer reinforcement net 9 usefulness and some equidistant placement, two chord members 11 of internal layer steel mesh reinforcement 10 usefulness add two interior iliacus 13, and arc horizontal-associate muscle 15 welding formings of some equidistant placement.With four setback muscle 16 steel mesh reinforcement 9 is supported on the steel mesh reinforcement 10, and the node that makes two-layer steel mesh reinforcement about the space becomes, criss-cross arrangement, each setback muscle all carries over the node place that longitudinal reinforcement is welded on two-layer steel mesh reinforcement.The top width of net shell is slightly less than bottom width, interior iliacus spacing is slightly less than two corresponding vertical iliacus spacings of its top, four setback muscle are laterally relatively tiltedly upright in twos just, about two-layer horizontal-associate muscle be connected into numerous little span arched frameworks that are connected with each other, and respectively form one pair of two purlin formula lattice frame 20 in net shell both sides.Respectively weld a gusset piece 3 at net shell two ends, become a Pin arc plate shape or a plate shaped support element, each longitudinal reinforcement of arc plate type member all curves the garden arc, and each longitudinal reinforcement of flat plate-shaped member all is straight muscle.Member bottom width 600~800mm, top width 520~720mm, thickness 120~150mm, chord member diameter 14~20mm, interior iliacus and vertical iliacus diameter 8~12mm, horizontal-associate muscle and setback muscle diameter 6~8mm.Gusset piece thickness 6~7mm.Every meter net shell quantity of reinforcement 10~16kg.Stablizing of this kind net shell is good, and flexibility is stronger, can be in order to form provisional chock for galleries and spray-up cage of reinforcement.
  5. 4. constitute reinforced inner bearing type net mould component according to following form of structure: straight section horizontal-associate muscle 14 welding formings of the vertical iliacus 12 of the outer reinforcement net 9 usefulness six roots of sensation and some equidistant placement, internal layer steel mesh reinforcement 10 still add two interior iliacus 13, and arc horizontal-associate muscle 15 welding formings of some equidistant placement with two chord members 11.With six roots of sensation setback muscle 16 steel mesh reinforcement 9 is supported on the steel mesh reinforcement 10.The node spatial distribution of its two-layer steel mesh reinforcement and setback muscle welding manner and aforementioned light-duty inner bearing type net mould component are similar, but there are two setback muscle two vertical iliacus to upper support in the every side of net shell, increment is to merge to be welded on the chord member under it, and forming the cross section is three purlin formula lattice frames 20 of del; Have four setback muscle in net shell inside laterally relatively tiltedly upright in twos, about two-layer horizontal-associate muscle be connected into numerous little span arched frameworks.Member bottom width 560~640mm, top width 700~800mm, thickness 150~200mm, chord member diameter 22~26mm, interior iliacus and vertical iliacus diameter 12~16mm, horizontal-associate muscle and setback muscle diameter 8~10mm.Gusset piece thickness 6~8mm.Every meter net shell quantity of reinforcement 20~30kg.The each several part stability and the integrated carrying of this kind net mould component are very capable, can be in order to form the braced structures of tunnel, big section cavern and extremely unstable mine working.
  6. 5. constitute light-duty coupling connection formula net mould component according to following form of structure: give earlier every straight section horizontal-associate muscle 14, arc horizontal-associate muscle 15 and two sections V-arrangement muscle 17 amalgamations being welded into one pair of flat bridge shape frame 18, its V muscle is welded in the two ends of straight section horizontal-associate muscle, constitute del bridge leg, arc horizontal-associate muscle is welded between two legs, and will encircle arc stage casing and the welding of cross bar stage casing coupling connection, to strengthen the rigidity of bridge shape frame.During assembling net mould component,, equidistantly arrange thereon, laterally stride vertical position welding and connect some pairs of flat bridge shape framves 18 earlier with two chord members, 11 location.Vertical iliacus 12 equidistant placement of the six roots of sensation on each flat bridge shape frame, are welded into outer reinforcement net 9 with straight section horizontal-associate muscle 14, weld a gusset piece at the every end of net shell again, become a Pin support element.Behind the net shell monolithic molding, its two chord members add outer middle two vertical iliacus, be connected into internal layer steel mesh reinforcement 10 by each arc horizontal-associate muscle, and vault are directly supporting the span centre of outer reinforcement net; Simultaneously, every side has a chord member and two vertical iliacus, founds into three purlin formula lattice frames 20 by V-arrangement muscle frame.Member bottom width 560~640mm, top width 700~800mm, thickness 120~150mm, chord member diameter 18~24mm, vertical iliacus diameter 10~14mm, flat bridge shape frame bar diameter 6~8mm, gusset piece thickness 6~8mm, every meter net shell quantity of reinforcement 12~20kg.The resistance to overturning of this kind net shell is good, and enabling capabilities is stronger, can stablize and more unsettled mine working in order to independent supporting is medium, or be used as the cage of reinforcement of spray-up.
  7. 6. constitute arcading shape net mould component according to following form of structure; Give with straight section horizontal-associate muscle 14, arc horizontal-associate muscle 15, V-arrangement muscle 17 and to make some pairs of flat bridge shape framves 18.The V-arrangement muscle is welded on the two ends of straight section horizontal bar as the bridge leg.Arc horizontal-associate muscle is welded between two legs, and its rise has two kinds of specifications, and a kind of rise is bigger, arch arc stage casing can directly join with cross bar stage casing coupling welds, alternative arrow is high half of bridge, welds two sections upright supports between arch arc and cross bar again, and the cross bar stage casing is supported on the arched ribs.During assembling net mould component, earlier with two chord members, 11 location, equidistantly arrange thereon, laterally stride vertical position welding and connect flat bridge shape frame 18, its arrangement mode is for to be provided with one pair low bow member shape frame every two pairs high arch-shaped.The interior iliacus 13 that arch is striden by two companies of being bent into vertically inserts between the arc horizontal-associate muscle of each flat and bridge shape frame, and its whenever for a short time arch arc of striding is welded into one with the arc horizontal-associate muscle of four pairs of flat bridge shape framves accordingly strides the dome net for a short time, thereby form the continuous dome net 10 of multispan that is supported on the chord member 11.Again the six roots of sensation is indulged iliacus 12 equidistant placement on each flat bridge shape frame, be welded into outer reinforcement net 9 with straight section horizontal-associate muscle 14, and respectively weld a gusset piece 3, form a Pin support element at net shell two ends.Behind the net shell monolithic molding, its internal layer connects the span centre that outer reinforcement net 9 is directly being supported in the arch of striding dome net 10, and simultaneously, every side has a chord member and two vertical iliacus to found into three purlin formula lattice frames 20 by V-arrangement muscle frame.Member bottom width 560~640mm, top width 700~800mm.Thickness 120~200mm, chord member diameter 18~24mm, interior iliacus and vertical muscle diameter 10~14mm put down and crane span structure bar diameter 6~10mm.Gusset piece thickness 6~8mm.Every meter net shell quantity of reinforcement 14~24kg.The monolithic stability and the enabling capabilities of this kind net shell are all stronger, both can also can be used as the cage of reinforcement of spray-up in order to the general mine working of independent supporting, pressure soft rock tunnel, supporting highland, workings subject to dy namic pressure and large-section underground etc.
CNB001191012A 2000-06-11 2000-06-11 Reinforcing bar netted chock and netted-shell bolting and shotcrete support CN1163660C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB001191012A CN1163660C (en) 2000-06-11 2000-06-11 Reinforcing bar netted chock and netted-shell bolting and shotcrete support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB001191012A CN1163660C (en) 2000-06-11 2000-06-11 Reinforcing bar netted chock and netted-shell bolting and shotcrete support

Publications (2)

Publication Number Publication Date
CN1306150A true CN1306150A (en) 2001-08-01
CN1163660C CN1163660C (en) 2004-08-25

Family

ID=4587490

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB001191012A CN1163660C (en) 2000-06-11 2000-06-11 Reinforcing bar netted chock and netted-shell bolting and shotcrete support

Country Status (1)

Country Link
CN (1) CN1163660C (en)

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100350107C (en) * 2005-08-11 2007-11-21 西安理工大学 Intelligent model constructuring method for analyzing cavity wall rock stability
CN100458102C (en) * 2004-06-25 2009-02-04 清华大学 Steel plate-concrete composite lining
CN102140924A (en) * 2011-02-09 2011-08-03 中国矿业大学 Double-shell coupling supporting method of deep soft rock tunnel
CN102287194A (en) * 2010-06-21 2011-12-21 福建省信通工程建设有限公司 Construction method of multi-span gently arc tunnel
CN102352761A (en) * 2011-11-09 2012-02-15 山东大学 Prestressed fish-bellied steel cable combined supporting structure for coal mine laneway
CN102418537A (en) * 2011-10-31 2012-04-18 招商局重庆交通科研设计院有限公司 Reinforcing steel bar binding method capable of accurately positioning tunnel lining reinforcing steel bars
CN102418539A (en) * 2011-10-31 2012-04-18 山西晋城无烟煤矿业集团有限责任公司 Supporting process in soft rock mine roadway rush through construction tunneling
CN101749035B (en) * 2008-12-10 2012-06-06 同济大学 Ready-packaged arch timbering steel frame of round tunnel urgent repairing
CN102505946A (en) * 2011-11-21 2012-06-20 中国矿业大学(北京) Closed metal support structure and construction method thereof
CN102562072A (en) * 2012-01-09 2012-07-11 中国矿业大学 Grille concrete connecting device on vertical well-to-gateway node
CN103244146A (en) * 2013-05-14 2013-08-14 中铁二十一局集团第四工程有限公司 Construction method for steel frame connection in tunnel anchor-plate retaining
CN103470273A (en) * 2013-09-24 2013-12-25 中鼎国际工程有限责任公司 Mine roadway three-dimensional lattice reinforced concrete bracket
CN103615273A (en) * 2013-12-04 2014-03-05 山东大学 Square steel confined concrete arch center wall back filling bolting-grouting support system and construction method
CN103775106A (en) * 2014-01-27 2014-05-07 华南理工大学 Structure for reinforcing tunnel by utilizing arch rings and method for reinforcing tunnel
CN103993893A (en) * 2014-06-06 2014-08-20 安徽理工大学 Underground construction three-dimensional reinforcing steel bar polypropylene fiber concrete support
CN104061004A (en) * 2014-07-10 2014-09-24 招商局重庆交通科研设计院有限公司 Steel bar construction for secondary lining of tunnel
CN104157317A (en) * 2014-08-21 2014-11-19 中国工程物理研究院核物理与化学研究所 Integral built-in undercritical cladding support and dismounting facility as well as assemble and disassemble method
CN104818995A (en) * 2015-04-03 2015-08-05 山东大学 Method for assembling confined concrete arch frames
CN104832187A (en) * 2015-04-03 2015-08-12 山东大学 High-stress soft rock roadway supporting system with metal mesh backplane and construction method
CN105332709A (en) * 2015-11-18 2016-02-17 北京建工土木工程有限公司 Construction method for initial supporting arch secondary-lining independent tunnel excavation and structures
CN105401963A (en) * 2015-12-08 2016-03-16 安徽理工大学 Three-dimensional heat-insulating reinforced concrete liner for mines
CN105443145A (en) * 2015-12-18 2016-03-30 马钢(集团)控股有限公司 Ladder plate girder for sinking and driving engineering
CN105881418A (en) * 2016-05-19 2016-08-24 安徽理工大学 Anchor net hooking wrench
CN105971629A (en) * 2016-06-21 2016-09-28 中铁第五勘察设计院集团有限公司 Composite lining design method with preliminary bracing as main bearing structure
CN106089244A (en) * 2016-06-12 2016-11-09 中铁二院工程集团有限责任公司 Frame props up arched tunnel lining structure
CN106761811A (en) * 2016-12-16 2017-05-31 安徽理工大学 Deep-well high stress and soft rock mine roadway composite anchored net Steel bar rack supporting construction and its construction method
CN107339115A (en) * 2017-09-14 2017-11-10 贵州大学 A kind of mine working ejection supporting device
CN108131155A (en) * 2017-12-29 2018-06-08 中铁十九局集团第二工程有限公司 To the construction technology of tunnel double-lining reinforcing bar positioning
CN108194106A (en) * 2018-02-26 2018-06-22 龚岗 Tunnel bolt-spary supports concrete trolley mobile pouring forms and construction technology
CN109162728A (en) * 2017-09-25 2019-01-08 许生安 A kind of tunnel structure of high-strength anti-seismic
CN109184759A (en) * 2018-10-24 2019-01-11 梅茜 A kind of mining tunnel suspension device
CN110130923A (en) * 2019-04-03 2019-08-16 中船第九设计研究院工程有限公司 A kind of fashioned iron supporting arch frame structure for tunnel
CN110259479A (en) * 2019-06-18 2019-09-20 山东科技大学 Loose crushing country rock of soft rock roadway reinforcement means
CN110735654A (en) * 2019-11-27 2020-01-31 周伟永 arch center for supporting underground tunnel and roadway engineering and rapid supporting method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102140920B (en) * 2011-02-10 2014-04-23 上海师范大学 Tunnel bionic reinforcement bridge

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100458102C (en) * 2004-06-25 2009-02-04 清华大学 Steel plate-concrete composite lining
CN100350107C (en) * 2005-08-11 2007-11-21 西安理工大学 Intelligent model constructuring method for analyzing cavity wall rock stability
CN101749035B (en) * 2008-12-10 2012-06-06 同济大学 Ready-packaged arch timbering steel frame of round tunnel urgent repairing
CN102287194A (en) * 2010-06-21 2011-12-21 福建省信通工程建设有限公司 Construction method of multi-span gently arc tunnel
CN102287194B (en) * 2010-06-21 2013-07-03 福建省信通工程建设有限公司 Construction method of multi-span gently arc tunnel
CN102140924A (en) * 2011-02-09 2011-08-03 中国矿业大学 Double-shell coupling supporting method of deep soft rock tunnel
CN102140924B (en) * 2011-02-09 2012-11-28 中国矿业大学 Double-shell coupling supporting method of deep soft rock tunnel
CN102418537B (en) * 2011-10-31 2014-03-12 招商局重庆交通科研设计院有限公司 Reinforcing steel bar binding method capable of accurately positioning tunnel lining reinforcing steel bars
CN102418539A (en) * 2011-10-31 2012-04-18 山西晋城无烟煤矿业集团有限责任公司 Supporting process in soft rock mine roadway rush through construction tunneling
CN102418537A (en) * 2011-10-31 2012-04-18 招商局重庆交通科研设计院有限公司 Reinforcing steel bar binding method capable of accurately positioning tunnel lining reinforcing steel bars
CN102418539B (en) * 2011-10-31 2016-06-22 山西晋城无烟煤矿业集团有限责任公司 The quick support process crossed in structure driving of soft rock subgrade
CN102352761A (en) * 2011-11-09 2012-02-15 山东大学 Prestressed fish-bellied steel cable combined supporting structure for coal mine laneway
CN102505946B (en) * 2011-11-21 2014-10-15 中国矿业大学(北京) Closed metal support structure and construction method thereof
CN102505946A (en) * 2011-11-21 2012-06-20 中国矿业大学(北京) Closed metal support structure and construction method thereof
CN102562072A (en) * 2012-01-09 2012-07-11 中国矿业大学 Grille concrete connecting device on vertical well-to-gateway node
CN102562072B (en) * 2012-01-09 2015-06-17 中国矿业大学 Grille concrete connecting device on vertical well-to-gateway node
CN103244146A (en) * 2013-05-14 2013-08-14 中铁二十一局集团第四工程有限公司 Construction method for steel frame connection in tunnel anchor-plate retaining
CN103470273A (en) * 2013-09-24 2013-12-25 中鼎国际工程有限责任公司 Mine roadway three-dimensional lattice reinforced concrete bracket
CN103615273A (en) * 2013-12-04 2014-03-05 山东大学 Square steel confined concrete arch center wall back filling bolting-grouting support system and construction method
CN103775106A (en) * 2014-01-27 2014-05-07 华南理工大学 Structure for reinforcing tunnel by utilizing arch rings and method for reinforcing tunnel
CN103993893A (en) * 2014-06-06 2014-08-20 安徽理工大学 Underground construction three-dimensional reinforcing steel bar polypropylene fiber concrete support
CN104061004A (en) * 2014-07-10 2014-09-24 招商局重庆交通科研设计院有限公司 Steel bar construction for secondary lining of tunnel
CN104061004B (en) * 2014-07-10 2016-07-13 招商局重庆交通科研设计院有限公司 Tunnel Second Lining bar construction
CN104157317A (en) * 2014-08-21 2014-11-19 中国工程物理研究院核物理与化学研究所 Integral built-in undercritical cladding support and dismounting facility as well as assemble and disassemble method
CN104818995A (en) * 2015-04-03 2015-08-05 山东大学 Method for assembling confined concrete arch frames
CN104832187B (en) * 2015-04-03 2017-03-29 山东大学 A kind of high stress and soft rock mine roadway support system containing wire netting backboard and construction method
CN104832187A (en) * 2015-04-03 2015-08-12 山东大学 High-stress soft rock roadway supporting system with metal mesh backplane and construction method
CN105332709A (en) * 2015-11-18 2016-02-17 北京建工土木工程有限公司 Construction method for initial supporting arch secondary-lining independent tunnel excavation and structures
CN105332709B (en) * 2015-11-18 2017-12-01 北京建工土木工程有限公司 First branch arcading two serves as a contrast the construction method of free-standing tunnel excavation and structure
CN105401963A (en) * 2015-12-08 2016-03-16 安徽理工大学 Three-dimensional heat-insulating reinforced concrete liner for mines
CN105443145B (en) * 2015-12-18 2018-02-16 马钢(集团)控股有限公司 Well lane engineering gangboard beam
CN105443145A (en) * 2015-12-18 2016-03-30 马钢(集团)控股有限公司 Ladder plate girder for sinking and driving engineering
CN105881418A (en) * 2016-05-19 2016-08-24 安徽理工大学 Anchor net hooking wrench
CN106089244A (en) * 2016-06-12 2016-11-09 中铁二院工程集团有限责任公司 Frame props up arched tunnel lining structure
CN105971629A (en) * 2016-06-21 2016-09-28 中铁第五勘察设计院集团有限公司 Composite lining design method with preliminary bracing as main bearing structure
CN106761811A (en) * 2016-12-16 2017-05-31 安徽理工大学 Deep-well high stress and soft rock mine roadway composite anchored net Steel bar rack supporting construction and its construction method
CN107339115A (en) * 2017-09-14 2017-11-10 贵州大学 A kind of mine working ejection supporting device
CN109162728B (en) * 2017-09-25 2020-01-10 济宁市鸿翔公路勘察设计研究院有限公司 High-strength anti-seismic tunnel structure
CN109162728A (en) * 2017-09-25 2019-01-08 许生安 A kind of tunnel structure of high-strength anti-seismic
CN108131155A (en) * 2017-12-29 2018-06-08 中铁十九局集团第二工程有限公司 To the construction technology of tunnel double-lining reinforcing bar positioning
CN108194106B (en) * 2018-02-26 2019-09-03 龚岗 The mobile pouring construction technique of tunnel bolt-spary supports concrete trolley
CN108194106A (en) * 2018-02-26 2018-06-22 龚岗 Tunnel bolt-spary supports concrete trolley mobile pouring forms and construction technology
CN109184759A (en) * 2018-10-24 2019-01-11 梅茜 A kind of mining tunnel suspension device
CN110130923A (en) * 2019-04-03 2019-08-16 中船第九设计研究院工程有限公司 A kind of fashioned iron supporting arch frame structure for tunnel
CN110259479A (en) * 2019-06-18 2019-09-20 山东科技大学 Loose crushing country rock of soft rock roadway reinforcement means
CN110735654A (en) * 2019-11-27 2020-01-31 周伟永 arch center for supporting underground tunnel and roadway engineering and rapid supporting method thereof

Also Published As

Publication number Publication date
CN1163660C (en) 2004-08-25

Similar Documents

Publication Publication Date Title
CN103469939B (en) A kind of masonry filler wall and main body flexibly connect earthquake resistant structure and construction method thereof
CN1125908C (en) Composite concrete metal encased stiffeners for metal plate arch-type structures
ElGawady et al. A review of conventional seismic retrofitting techniques for URM
CN102839675B (en) Method of long-span pre-stress fish belly sill for foundation pit support
CN103924711B (en) The construction technology of assembling grillage shear wall structural system
CN101538896B (en) Construction method for jettied structure at high attitude of high-rise building
KR100534456B1 (en) Tunnel support lattice girder
CN101672071B (en) Vertical reinforced concrete component-connection node for buckling-restrained brace
Nagaprasad et al. Seismic strengthening of RC columns using external steel cage
CN101725362B (en) Composite support device of dynamic pressure softrock tunnel based on steel pipe concrete bracket
CN104047610B (en) Composite lining structure
CN202431302U (en) Filling retaining wall device for high large-scale mining stope in roadway
CN101769154A (en) Excavation supporting method for tunnel construction
CN103590834B (en) The excavation supporting method of Non-symmetric Extrusion type deformation tunnel
CN104863614B (en) Method for primary support with corrugated steel plate and concrete combined structure taking place of steel grating
CN201170106Y (en) Laneway anchor rod support system
CN103410528B (en) Tunnel lining structure and construction method
CN102268998A (en) Dual-micro-arch span-reducing support method of large-span open-off cut
CN102226403A (en) Construction method of large-span subway station main body by using arched cover method and station main body structure
CN100458102C (en) Steel plate-concrete composite lining
CN102562091A (en) Foam concrete shock absorbing structure of tunnel and construction method of foam concrete shock absorbing structure
CN102758642B (en) Long-span tunnel overlapping carrying arch structure for upper-soft and lower-hard stratum and construction method thereof
CN106930777B (en) The construction method that Bored Section of Metro main track assembled two serves as a contrast
CN106677804B (en) A kind of gob side entry retaining roadside support system and its construction method
CN102140924B (en) Double-shell coupling supporting method of deep soft rock tunnel

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee