CN103133005A - Double-steel-plate locally-confined concrete shaft lining - Google Patents
Double-steel-plate locally-confined concrete shaft lining Download PDFInfo
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- CN103133005A CN103133005A CN2013100435437A CN201310043543A CN103133005A CN 103133005 A CN103133005 A CN 103133005A CN 2013100435437 A CN2013100435437 A CN 2013100435437A CN 201310043543 A CN201310043543 A CN 201310043543A CN 103133005 A CN103133005 A CN 103133005A
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- 239000004567 concrete Substances 0.000 title claims abstract description 70
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 212
- 239000010959 steel Substances 0.000 claims abstract description 212
- 239000011435 rock Substances 0.000 claims abstract description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 70
- 238000003466 welding Methods 0.000 claims description 21
- 238000005553 drilling Methods 0.000 claims description 6
- 238000003032 molecular docking Methods 0.000 claims description 6
- 239000004574 high-performance concrete Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 24
- 238000010586 diagram Methods 0.000 description 12
- 230000008014 freezing Effects 0.000 description 11
- 238000007710 freezing Methods 0.000 description 11
- 230000011218 segmentation Effects 0.000 description 8
- 238000005452 bending Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 230000002650 habitual effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Abstract
A double-steel-plate locally-confined concrete shaft lining is most suitable for bearing deep vertical shafts with high earth pressure and high water pressure. Double-layer steel plate cylinders, double-ring vertical steel ribs, a radial connecting member are arranged to form the cylindrical shaft lining through concerting. Steel plate cylinders on inner and outer sides are positioned on the inner surface and the inside of the shaft lining respectively, fixed on vertical steel ribs on inner and outer sides and connected into a cylindrical structure circumferentially; and radial connecting members are arranged steel plate cylinders. The cylindrical shaft lining structure is formed through pouring concrete with identical or different strength grades between two layers of steel plate cylinders and annular space between the steel plate cylinders and shaft lining templates or country rocks. The concrete between the two layers of the steel plate cylinders receives strong radial confining effect, and the compressive strength can be improved obviously; and the steel ratio in the shaft lining inside area is high, concrete in high strength grade can be adopted to form a core bearing area, and the ultimate bearing capacity of the shaft lining can be improved substantially. The double-steel-plate locally-confined concrete shaft lining is applied to construction of deep shafts, the thickness of the shaft lining can be reduced substantially, and costs can be reduced; and the double-steel-plate locally-confined concrete shaft lining is reasonable in structure, easy and convenient to construct and wide in application.
Description
One, technical field
The invention relates to double steel plate local restriction concrete walling, is particularly useful for the deep thick alluvium of mine construction and the deep shaft in the Fu Shui rock stratum, as normal sinking, freezing process, boring method and drop shaft sinking sinking shaft pit shaft.
Two, background technology
Along with the exploitation of China's deep mineral resources, pit shaft is built the degree of depth and is constantly increased, and shaft lining load-bearing power has to significantly increase, to bear increasing deep rock thrust and hydraulic pressure.For this reason, only have two kinds by way of: the one, shaft wall structure is constant, improves the strength of materials and thickness; The 2nd, change shaft wall structure.Steel concrete wall construction commonly used has been difficult to adapt to the needs that Deep Mine is built at present, and external habitual cast iron or the cast steel borehole wall, mound guest's piece borehole wall, the concrete arc plate borehole wall need, down-hole assembling prefabricated on ground, its construction technology is complicated, difficulty is large, cost is high, difficult quality guarantee.
Prior art by in borehole wall inside, annular closed skeleton being set, improves the total bearing capacity of the borehole wall.The metallic framework of this borehole wall can not make borehole wall inner surface concrete become triaxial stress state by the plane stress, can not give full play to the inboard concrete three axle compressive strength of the borehole wall.
Existing technology is for example built the inboard individual layer steel plate concrete borehole wall of formation by steel plate is set at borehole wall inner surface.Anchor clamp and the concrete binding by the back side only due to inboard steel plate, in the stand under load process easily and concrete peel off, cause inboard concrete can not give full play to three axle compressive strength, the horizontal bearing capacity increase rate is limited.
Prior art, by on the borehole wall inside and outside surface, double-layer plate is set, radially connector is built the formation concrete walling.But the borehole wall stressed least favorable position is its medial region, and this type borehole wall utilizes double-layer plate to implement the overall radial constraint to the borehole wall, and on the one hand, the steel plate consumption is very large, but limited to the raising of the inboard steel ratio of the borehole wall; On the other hand, the concrete intensity in the borehole wall outside improves, and is little to the contribution of borehole wall horizontal bearing capacity.In fact, inboard concrete is the core space of shaft lining load-bearing, and existing double-layer plate concrete walling fails to improve targetedly the strength of materials of borehole wall inboard, and economy is relatively relatively poor.
Three, technology contents
(1) goal of the invention
In view of the problem that prior art exists, the invention is intended to propose a kind of more reasonable structure, cost is lower, difficulty of construction is less and have the more double steel plate local restriction concrete walling of broad applicability.
(2) technical scheme
The invention double steel plate local restriction concrete walling, it comprises: inboard steel plate cylinder, outside steel plate cylinder, medial shaft be to reinforcing bar, the vertical reinforcing bar in the outside, connector radially, build in medial and lateral steel plate cylinder and and borehole wall template or country rock body between concrete.Medial and lateral steel plate cylinder is all the circumferential enclosed construction that is welded by the plate with curved surface that multistage pre-bending is shaped; The vertical reinforcing bar in medial and lateral is H shaped steel, channel-section steel or other shaped steel; Medial and lateral steel plate cylinder is affixed on the vertical reinforcing bar in medial and lateral by welding or bolt philosophy; Passing through radially between the two-layered steel plates cylinder, connector connects.Specific as follows:
A kind of double steel plate local restriction concrete walling comprises that inboard steel plate cylinder 1, outside steel plate cylinder 2, medial shaft are to reinforcing bar 3, the vertical reinforcing bar 4 in the outside, radially connector 5 and concrete;
Inboard steel plate cylinder 1 is arranged on borehole wall inner surface; Inboard steel plate cylinder 1 is circumferential along pit shaft, by the section plate with curved surface of a plurality of segmental arcs by being welded to form the closed cylinder structure; Vertical along pit shaft, between adjacent steel plate cylinder directly or indirectly when having flanged plate (drilling shaft lining is intersegmental) by being welded to connect;
Outside steel plate cylinder 2 is arranged on borehole wall inside, and outside steel plate cylinder 2 is adjustable to the distance of inboard steel plate cylinder 1; Outside steel plate cylinder 2 is circumferential along pit shaft, forms cylindrical structure by plate with curved surface docking or the overlap joint of a plurality of segmental arcs, is to weld, rivet or be bolted between circumferential adjacent plate with curved surface; Be that directly or indirectly welding consists of vertical continuous structure longitudinally between adjacent plate with curved surface cylinder along pit shaft, perhaps connect a batch position in borehole wall section and stay and establish the interval and make discontinuous structure;
Medial shaft is laid to the outside that reinforcing bar 3 is adjacent to inboard steel plate cylinder 1; Medial shaft is the vertical structures that are formed by connecting by welding or bolt by the shaped steel section to reinforcing bar 3; Medial shaft between reinforcing bar 3 and steel plate cylinder 1 by bolt or be welded to connect;
The vertical reinforcing bar 4 in the outside is in close proximity to inboard or the outside of outside steel plate cylinder 5; The vertical reinforcing bar 4 in the outside is the vertical structures that are formed by connecting by welding or bolt by the shaped steel section; Be bolted or be welded to connect between the vertical reinforcing bar 4 in the outside and outside steel plate cylinder 2;
Inboard steel plate cylinder 1 and outside steel plate cylinder 2 radially are connected by connector 5 realizations radially;
By concreting between inboard steel plate cylinder 1, outside steel plate cylinder 2, and concreting in the annular space of outside steel plate cylinder 2 and borehole wall template or in the annular space between outside steel plate cylinder 2 and country rock body, the integrant tubular borehole wall of shape.
Drilling shaft lining is intersegmental when having flanged plate, between the adjacent steel plate cylinder of inboard steel plate cylinder 1 indirectly by be welded to connect (that is: during the drilling shaft lining prefabricate, the steel plate cylinder of every section borehole wall and the welding of two ends flanged plate; When the borehole wall is installed, directly be welded to connect again between the flanged plate of contact between adjacent borehole wall section).
Medial shaft is H shaped steel or channel-section steel or similar shaped steel to the shaped steel section of reinforcing bar 3; The shaped steel section of the vertical reinforcing bar 4 in the outside is H shaped steel or channel-section steel or similar shaped steel; Radially connector 5 is threaded rod and nut or similar components of both-end band silk.
Concrete is ordinary concrete, high performance concrete or fibrous concrete; Between inboard steel plate cylinder 1 and outside steel plate cylinder 2 in the outer annular space of the intensity of concreting and outside steel plate cylinder 2 intensity of concreting compare, concrete strength grade is identical, perhaps the former is higher than the latter.
(3) technique effect
Shaft wall is subjected to horizontal soil pressure and Water Pressure, and the least favorable force part is its medial region.Therefore, the key of sidewall safety carrying is to improve the strength of materials and the reinforcement ratio (or steel content) at above-mentioned position.
The invention reaches radially connector by medial and lateral steel plate cylinder is set, make the concrete between the two-layered steel plates cylinder be subject to powerful radial constraint effect, and can adopt the higher concrete of strength grade (zone that is different from the steel plate cylinder outside, the outside), thereby can improve significantly borehole wall ultimate bearing capacity.
Compare with the existing well wall construction, this type borehole wall has higher strength and stiffness, lower difficulty of construction and engineering cost; It is rational in infrastructure, constructs comparatively easy, thereby has applicability widely.
Four, description of drawings
Fig. 1-1 and Fig. 1-2 are embodiment one structural representation (the boring method borehole wall, segmentation prefabricatings; H shaped steel reinforcing bar), wherein, Fig. 1-1st, the axial cross section schematic diagram of embodiment one, Fig. 1-2 are the radial section schematic diagrames of embodiment one.
Fig. 2-1 and Fig. 2-2nd, embodiment two structural representations (the boring method borehole wall, segmentation prefabricating; The channel-section steel reinforcing bar), wherein, Fig. 2-1st, the axial cross section schematic diagram of embodiment two, Fig. 2-2nd, the radial section schematic diagram of embodiment two.
Fig. 3-1 and Fig. 3-2nd, embodiment three structural representations (the drop shaft sinking borehole wall, freezing process inner layer well wall, continuous placing from bottom to top; H shaped steel reinforcing bar), wherein, Fig. 3-1st, the axial cross section schematic diagram of embodiment three, Fig. 3-2nd, the radial section schematic diagram of embodiment three.
Fig. 4-1 and Fig. 4-2nd, embodiment four structural representations (the drop shaft sinking borehole wall, freezing process inner layer well wall, continuous placing from bottom to top; The channel-section steel reinforcing bar), wherein, Fig. 4-1st, the axial cross section schematic diagram of embodiment four, Fig. 4-2nd, the radial section schematic diagram of embodiment four.
Fig. 5-1 and Fig. 5-2nd, and embodiment five structural representations (the normal sinking borehole wall, freezing process outer shaft wall, segmentation is from top to bottom built; H shaped steel reinforcing bar), wherein, Fig. 5-1st, the axial cross section schematic diagram of embodiment five, Fig. 5-2nd, the radial section schematic diagram of embodiment five.
Fig. 6-1 and Fig. 6-2nd, and embodiment six structural representations (the normal sinking borehole wall, freezing process outer shaft wall, segmentation is from top to bottom built; The channel-section steel reinforcing bar), wherein, Fig. 6-1st, the axial cross section schematic diagram of embodiment six, Fig. 6-2nd, the radial section schematic diagram of embodiment six.
In above-mentioned Fig. 1-1～Fig. 2-2, A is the upper surface flanged plate, and B is the lower surface flanged plate.
In above-mentioned Fig. 5-1～Fig. 6-2, C is that concrete is built the hole steel plate, and D is that borehole wall section connects stubble.
In above-mentioned Fig. 1-1～Fig. 6-2, E is concrete.
Five, the specific embodiment
A kind of double steel plate local restriction concrete walling, by inboard steel plate cylinder 1, outside steel plate cylinder 2, medial shaft to reinforcing bar 3, the vertical reinforcing bar 4 in the outside, radially connector 5 and concrete monobloc cast form.
Inboard steel plate cylinder 1 is arranged on borehole wall inner surface; Circumferential along pit shaft, by a plurality of segmental arcs the section plate with curved surface by being welded to form the closed cylinder structure; Vertical along pit shaft, between adjacent steel plate cylinder directly or indirectly when having flanged plate (drilling shaft lining is intersegmental) by being welded to connect.
Outside steel plate cylinder 2 is arranged on borehole wall inside, can adjust as required to the distance of inboard steel plate cylinder 1; Circumferential along pit shaft, form cylindrical structure by the docking of the plate with curved surface of a plurality of segmental arcs or overlap joint, can weld between steel plate, rivet or be bolted; Vertical along pit shaft, both can directly or indirectly weld between adjacent steel plate cylinder and form vertical continuous structure (caisson wall, directly welding of freezing process inner layer well wall employing; Drilling shaft lining, steel plate cylinder and two ends flanged plate welding), also can comprise that borehole wall section connects batch position etc. and stays and establish certain intervals and make discontinuous structure (the normal sinking borehole wall or freezing process outer shaft wall).
Medial shaft is laid to the outside that reinforcing bar 3 is close to inboard steel plate cylinder 1; It is the vertical structure that is formed by connecting by welding or bolt by the shaped steel section; The shaped steel section is including but not limited to H shaped steel, channel-section steel; Medial shaft between reinforcing bar 3 and steel plate cylinder 1 by bolt or be welded to connect.
The vertical reinforcing bar 4 in the outside is laid in inboard or the outside of outside steel plate cylinder 5; It is the vertical structure that is formed by connecting by welding or bolt by the shaped steel section; The shaped steel section is including but not limited to H shaped steel, channel-section steel; Between the vertical reinforcing bar 4 in the outside and outside steel plate cylinder 2 by bolt or be welded to connect.
Inboard steel plate cylinder 1 and outside steel plate cylinder 2 radially are connected by connector 5 realizations radially; Radially connector 5 is including but not limited to accessories such as the threaded rod of both-end band silk and nuts.
By concreting between inboard steel plate cylinder 1, outside steel plate cylinder 2, and concreting in the annular space between outside steel plate cylinder 2 and borehole wall template or country rock body, the whole tubular borehole wall formed; Concrete can adopt ordinary concrete, high performance concrete or fibrous concrete; Concrete strength grade can be identical, also can the former higher than the latter.
Below in conjunction with the accompanying drawing of each embodiment, the embodiment of the invention is described in detail:
Embodiment one: the boring method borehole wall (segmentation prefabricating, two ends have the annular flange plate)
The invention double steel plate local restriction concrete walling mainly comprises: inboard steel plate cylinder 1, outside steel plate cylinder 2, medial shaft are to reinforcing bar 3(H shaped steel), the outside vertical reinforcing bar 4(H shaped steel), radially connector 5, concrete form (seeing Fig. 1-1 and 1-2).
Implementation method:
(1) at first on the flanged plate of borehole wall lower end, lay the vertical reinforcing bar 4 in the outside, medial shaft along different circles footpaths to reinforcing bar 3(circle spacing, circumferentially spacing can be adjusted as required) and be welded on flanged plate;
(2) the inner curve steel plate that pre-bending is shaped is installed to medial shaft on reinforcing bar 3; Connect by butt welding, form inboard steel plate cylinder 1;
(3) outside plate with curved surface that pre-bending is shaped is installed on the vertical reinforcing bar 4 in the outside; By docking or overlap joint, and adopt welding or riveted joint or bolt to connect, form outside steel plate cylinder 2;
(4) utilize radially connector 5, connect inboard steel plate cylinder 1, outside steel plate cylinder 2;
(5) flanged plate of upper end is installed, and with inboard steel plate cylinder 1, outside steel plate cylinder 2, medial shaft to reinforcing bar 3, vertical reinforcing bar 4 firm welding in the outside;
(5) the prefabricated required exterior sheathing of the borehole wall and braced structures being installed (annotates: the inner formword when inboard steel plate cylinder 1 is built as the borehole wall);
(6) in the twice annular space between inboard steel plate cylinder 1, outside steel plate cylinder 2, exterior sheathing, concreting E, be prefabricated into double steel plate local restriction concrete walling respectively.
Embodiment two: the boring method borehole wall (segmentation prefabricating, two ends have the annular flange plate)
The invention double steel plate local restriction concrete walling mainly comprises: inboard steel plate cylinder 1, outside steel plate cylinder 2, medial shaft are to reinforcing bar 3(channel-section steel), the outside vertical reinforcing bar 4(channel-section steel), radially connector 5, concrete E, concrete seven form (seeing Fig. 2-1 and 2-2).
Implementation method:
Identical with embodiment one.
Embodiment three: the drop shaft sinking borehole wall, freezing process inner layer well wall (continuous placing from bottom to top)
The invention double steel plate local restriction concrete walling mainly comprises: steel plate cylinder 2(is vertically discontinuous for inboard steel plate cylinder 1, the outside), medial shaft is to reinforcing bar 3(H shaped steel), the outside vertical reinforcing bar 4(H shaped steel), radially connector 5, concrete form (seeing Fig. 3-1 and 3-2).
Implementation method:
(1) at first along different circles footpaths, the vertical reinforcing bar 4 in the outside, medial shaft are set to the circle spacing of the vertical reinforcing bar of reinforcing bar 3(, circumferentially spacing can be adjusted as required), and be connected firmly respectively to reinforcing bar with the vertical reinforcing bar in the outside, medial shaft in the borehole wall of bottom;
(2) outside plate with curved surface that pre-bending is shaped is installed on the vertical reinforcing bar 4 in the outside; By docking or overlap joint, and adopt welding or riveted joint or bolt to connect, form outside steel plate cylinder 2; And be connected firmly with the outside steel plate cylinder of the bottom borehole wall;
(3) the inner curve steel plate that pre-bending is shaped is installed to medial shaft on reinforcing bar 3; Connect by butt welding, form inboard steel plate cylinder 1; And be connected firmly with the inboard steel plate cylinder of the bottom borehole wall;
(4) utilize radially connector 5, connect inboard steel plate cylinder 1, outside steel plate cylinder 2;
(5) for the drop shaft sinking sinking shaft, the borehole wall is installed is built required outboard template (notes: the inner formword when inboard steel plate cylinder 1 is built as the borehole wall);
(6) in the twice annular space between inboard steel plate cylinder 1, outside steel plate cylinder 2, exterior sheathing (drop shaft sinking sinking shaft) or country rock body (freeze-wellboring inner layer well wall), concreting, form double steel plate local restriction concrete walling respectively.
Embodiment four: the drop shaft sinking borehole wall, freezing process inner layer well wall (continuous placing from bottom to top)
The invention double steel plate local restriction concrete walling mainly comprises: steel plate cylinder 2(is vertically discontinuous for inboard steel plate cylinder 1, the outside), medial shaft is to reinforcing bar 3(channel-section steel), the outside vertical reinforcing bar 4(channel-section steel), radially connector 5, concrete E form (seeing Fig. 4-1 and 4-2).
Implementation method:
Identical with embodiment three.
Embodiment five: the normal sinking borehole wall, freezing process outer shaft wall (segmentation is from top to bottom built)
The invention double steel plate local restriction concrete walling mainly comprises: steel plate cylinder 2(is vertically discontinuous for inboard steel plate cylinder 1, the outside), medial shaft is to reinforcing bar 3(H shaped steel), the outside vertical reinforcing bar 4(H shaped steel), radially connector 5, concrete form (seeing Fig. 5-1 and 5-2).
Implementation method:
(1) at first along different circles footpaths, the vertical reinforcing bar 4 in the outside, medial shaft are set to the circle spacing of the vertical reinforcing bar of reinforcing bar 3(, circumferentially spacing can be adjusted as required), and respectively with top borehole wall section in the vertical reinforcing bar in the outside, medial shaft be connected firmly to reinforcing bar;
(2) outside plate with curved surface that pre-bending is shaped is installed on the vertical reinforcing bar 4 in the outside; By docking or overlap joint, and adopt welding, riveted joint or bolt to connect, form outside steel plate cylinder 2; And between the outside steel plate cylinder of the epimere borehole wall, the edge is vertically stayed and is established certain intervals, is convenient to concreting, the operation of vibrating.
(3) the inner curve steel plate that pre-bending is shaped is installed to medial shaft on reinforcing bar 3; Connect by butt welding, form inboard steel plate cylinder 1; And between the inboard steel plate cylinder of the epimere borehole wall, connect by butt welding, but along circumferentially staying the hole of establishing some, to carry out concreting, to vibrate.
(4) utilize radially connector 5, connect inboard steel plate cylinder 1, outside steel plate cylinder 2;
(5) borehole wall section is installed and builds required bottom blade foot model (notes: the inner formword when inboard steel plate cylinder 1 is built as the borehole wall);
(6) in the twice annular space between inboard steel plate cylinder 1, outside steel plate cylinder 2, country rock body, concreting, form double steel plate local restriction concrete walling respectively.
(7) after borehole wall hardening of concrete, by welding steel, the hole on the inboard steel plate cylinder 1 of shutoff.
Embodiment six: the normal sinking borehole wall, freezing process outer shaft wall (segmentation is from top to bottom built)
The invention double steel plate local restriction concrete walling mainly comprises: steel plate cylinder 2(is vertically discontinuous for inboard steel plate cylinder 1, the outside), medial shaft is to reinforcing bar 3(channel-section steel), the outside vertical reinforcing bar 4(channel-section steel), radially connector 5, concrete form (seeing Fig. 6-1 and 6-2).
Implementation method:
Identical with embodiment five.
This double steel plate local restriction concrete walling is best suited for the deep shaft that carries highland pressure, high hydraulic pressure.By double-layer steel plate barrel, the vertical reinforcing bar of two circle, the tubular borehole wall that forms of connector and concreting radially are set.Medial and lateral steel plate cylinder lays respectively at borehole wall inner surface, the borehole wall is inner, is fixed on the vertical reinforcing bar in medial and lateral also along circumferentially connecting into tubular structure; Establish radially connector between the steel plate cylinder.By between the two-layered steel plates cylinder, and and borehole wall template or country rock body between the annular cylinder shape space in the identical or different concrete of placing intensity grade, form the tubular shaft wall structure.Concrete between this type borehole wall two-layered steel plates cylinder is subject to stronger radial constraint effect, can significantly improve compressive strength; Borehole wall medial region steel ratio is high, and can adopt the concrete of high strength grade, forms the core supporting region, significantly improves borehole wall ultimate bearing capacity.Be used for dark vertical construction, can significantly reduce thickness of shaft wall, reduce costs; It is rational in infrastructure, easy construction, and applicability is extensive.
Claims (4)
1. double steel plate local restriction concrete walling is characterized in that: comprise that inboard steel plate cylinder (1), outside steel plate cylinder (2), medial shaft are to reinforcing bar (3), the vertical reinforcing bar in the outside (4), radially connector (5) and concrete;
Inboard steel plate cylinder (1) is arranged on borehole wall inner surface; Inboard steel plate cylinder (1) is circumferential along pit shaft, by the plate with curved surface of a plurality of segmental arcs by being welded to form the closed cylinder structure; Vertical along pit shaft, between adjacent steel plate cylinder directly or indirectly by being welded to connect;
Outside steel plate cylinder (2) is arranged on borehole wall inside, and outside steel plate cylinder (2) is adjustable to the distance of inboard steel plate cylinder (1); Outside steel plate cylinder (2) is circumferential along pit shaft, forms cylindrical structure by the docking of the plate with curved surface of a plurality of segmental arcs or overlap joint, is to weld, rivet or be bolted between circumferential adjacent plate with curved surface; Be that directly or indirectly welding consists of vertical continuous structure longitudinally between adjacent plate with curved surface cylinder along pit shaft, perhaps comprising that borehole wall section connects a batch position and stays and establish the interval and make discontinuous structure;
Medial shaft is laid to the outside that reinforcing bar (3) is adjacent to inboard steel plate cylinder (1); Medial shaft is the vertical structure that is formed by connecting by welding or bolt by the shaped steel section to reinforcing bar (3); Medial shaft between reinforcing bar (3) and steel plate cylinder (1) by bolt or be welded to connect;
The vertical reinforcing bar (4) in the outside is in close proximity to inboard or the outside of outside steel plate cylinder (5); The vertical reinforcing bar (4) in the outside is the vertical structure that is formed by connecting by welding or bolt by the shaped steel section; Be bolted or be welded to connect between the vertical reinforcing bar (4) in the outside and outside steel plate cylinder (2);
Inboard steel plate cylinder (1) and outside steel plate cylinder (2) radially are connected by connector (5) realization radially;
By concreting between inboard steel plate cylinder (1), outside steel plate cylinder (2), and concreting in the annular space of outside steel plate cylinder (2) and borehole wall template or in the annular space between outside steel plate cylinder (2) and country rock body, the integrant tubular borehole wall of shape.
2. double steel plate local restriction concrete walling according to claim 1 is characterized in that: drilling shaft lining is intersegmental when having flanged plate, between the adjacent steel plate cylinder of inboard steel plate cylinder (1) indirectly by being welded to connect.
3. double steel plate local restriction concrete walling according to claim 1, it is characterized in that: medial shaft is H shaped steel or channel-section steel or similar shaped steel to the shaped steel section of reinforcing bar (3); The shaped steel section of the vertical reinforcing bar (4) in the outside is H shaped steel or channel-section steel or similar shaped steel; Radially connector (5) is threaded rod and nut or the similar component of both-end band silk.
4. double steel plate local restriction concrete walling according to claim 1, it is characterized in that: concrete is ordinary concrete, high performance concrete or fibrous concrete; Between inboard steel plate cylinder (1) and outside steel plate cylinder (2), the intensity of concreting is compared with the intensity of the interior concreting of outside steel plate cylinder (2) annular space outward, and concrete strength grade is identical, and perhaps the former is higher than the latter.
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| CN201310043543.7A CN103133005B (en) | 2013-02-04 | 2013-02-04 | Double-steel-plate locally-confined concrete shaft lining |
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| CN201310043543.7A CN103133005B (en) | 2013-02-04 | 2013-02-04 | Double-steel-plate locally-confined concrete shaft lining |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527201A (en) * | 2013-10-15 | 2014-01-22 | 中国矿业大学(北京) | Supporting device for concrete filled steel tube supports and concrete duct pieces of coal mine vertical shaft |
| CN105201514A (en) * | 2015-09-15 | 2015-12-30 | 中国矿业大学 | Water-bearing rock stratum borehole wall structure and construction method |
| CN106121658A (en) * | 2016-08-05 | 2016-11-16 | 煤炭工业合肥设计研究院 | Freeze-wellboring pit shaft borehole wall supporting construction and construction method thereof |
| CN106761764A (en) * | 2016-12-27 | 2017-05-31 | 山河智能装备股份有限公司 | A kind of super-large diameter deep shaft simple shield device and shield method |
| CN106894820A (en) * | 2017-01-17 | 2017-06-27 | 中国矿业大学 | A kind of waterproof well wall retractable device and its construction technology |
| CN108506002A (en) * | 2018-05-23 | 2018-09-07 | 北京中煤矿山工程有限公司 | A kind of outer wall template forming slurries diffusion channel in outer wall surface |
| CN112502714A (en) * | 2020-10-27 | 2021-03-16 | 中建三局基础设施建设投资有限公司 | Assembled shaft barrel structure and design and construction method |
| CN112879013A (en) * | 2021-01-27 | 2021-06-01 | 中国华冶科工集团有限公司 | Installation method of shaft inner bin |
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| CN103527201A (en) * | 2013-10-15 | 2014-01-22 | 中国矿业大学(北京) | Supporting device for concrete filled steel tube supports and concrete duct pieces of coal mine vertical shaft |
| CN103527201B (en) * | 2013-10-15 | 2015-09-23 | 中国矿业大学(北京) | Coal mine shaft lining pit shaft steel pipe concrete bracket and concrete pipe sheet suspension device |
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| CN106121658B (en) * | 2016-08-05 | 2020-03-27 | 煤炭工业合肥设计研究院 | Freezing method sinking shaft well wall supporting structure and construction method thereof |
| CN106121658A (en) * | 2016-08-05 | 2016-11-16 | 煤炭工业合肥设计研究院 | Freeze-wellboring pit shaft borehole wall supporting construction and construction method thereof |
| CN106761764A (en) * | 2016-12-27 | 2017-05-31 | 山河智能装备股份有限公司 | A kind of super-large diameter deep shaft simple shield device and shield method |
| CN106761764B (en) * | 2016-12-27 | 2020-03-10 | 山河智能装备股份有限公司 | Simple shield device and shield method for ultra-large-diameter deep shaft |
| CN106894820A (en) * | 2017-01-17 | 2017-06-27 | 中国矿业大学 | A kind of waterproof well wall retractable device and its construction technology |
| CN106894820B (en) * | 2017-01-17 | 2019-02-22 | 中国矿业大学 | A kind of waterproof well wall retractable device and its construction technology |
| CN108506002A (en) * | 2018-05-23 | 2018-09-07 | 北京中煤矿山工程有限公司 | A kind of outer wall template forming slurries diffusion channel in outer wall surface |
| CN108506002B (en) * | 2018-05-23 | 2024-03-26 | 北京中煤矿山工程有限公司 | Outer wall template for forming slurry diffusion groove on outer wall surface |
| CN112502714A (en) * | 2020-10-27 | 2021-03-16 | 中建三局基础设施建设投资有限公司 | Assembled shaft barrel structure and design and construction method |
| CN112502714B (en) * | 2020-10-27 | 2022-12-06 | 中建三局基础设施建设投资有限公司 | Assembled shaft barrel structure and design and construction method |
| CN112879013A (en) * | 2021-01-27 | 2021-06-01 | 中国华冶科工集团有限公司 | Installation method of shaft inner bin |
| CN112879013B (en) * | 2021-01-27 | 2023-03-03 | 中国华冶科工集团有限公司 | Installation method of shaft inner bin |
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