CN103075158A - Steel plate and steel reinforced concrete well wall - Google Patents
Steel plate and steel reinforced concrete well wall Download PDFInfo
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- CN103075158A CN103075158A CN2013100466172A CN201310046617A CN103075158A CN 103075158 A CN103075158 A CN 103075158A CN 2013100466172 A CN2013100466172 A CN 2013100466172A CN 201310046617 A CN201310046617 A CN 201310046617A CN 103075158 A CN103075158 A CN 103075158A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 206
- 239000010959 steel Substances 0.000 title claims abstract description 206
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 23
- 239000004567 concrete Substances 0.000 claims abstract description 38
- 239000011435 rock Substances 0.000 claims abstract description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 105
- 238000003466 welding Methods 0.000 claims description 19
- 238000005553 drilling Methods 0.000 claims description 5
- 239000004574 high-performance concrete Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 description 24
- 238000010586 diagram Methods 0.000 description 12
- 230000008014 freezing Effects 0.000 description 10
- 238000007710 freezing Methods 0.000 description 10
- 238000010276 construction Methods 0.000 description 9
- 230000011218 segmentation Effects 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 210000001364 upper extremity Anatomy 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
- 230000001788 irregular Effects 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
The invention discloses a steel plate and steel reinforced concrete well wall, which is mostly suitable for deep vertical shafts for bearing high ground pressure and high water pressure. A steel plate cylinder, an annular steel rib, inside vertical steel ribs, outside vertical steel ribs and radial connecting pieces are arranged and concrete is poured to form a cylindrical well wall. The steel plate cylinder and the annular steel rib are respectively positioned on the inner surface of the well wall and in the well wall, and are respectively fixed to the inside and outside vertical steel ribs; the steel plate cylinder and the annular steel rib are connected through the radial connecting pieces to form a spatial structure; and concrete is poured into an annular space formed by the steel plate cylinder and a well wall template or surrounding rock to coat the annular steel rib, the inside and outside vertical steel ribs and the like, and the cylindrical well wall structure is formed. The steel ratio on the inner side of the well wall is high, the concrete between the steel plate cylinder and the annular steel rib is positioned in a three-directional stress state, the compressive strength can be obviously improved, a core bearing area is formed, and the ultimate bearing capacity of the well wall is greatly improved. The steel plate and steel reinforced concrete well wall is used for building deep vertical shafts, the thickness of the well wall can be greatly reduced and the cost is reduced; and the steel plate and steel reinforced concrete well wall is reasonable in structure and easy and convenient to construct and has wide applicability.
Description
One, technical field
The invention relates to the steel plate steel reinforced concrete borehole wall, is particularly useful for the deep thick alluvium of mine construction and the deep shaft in the Fu Shui rock stratum, such as normal sinking, freezing process, boring method and drop shaft sinking 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.For this reason, only have two kinds by way of: the one, shaft wall structure is constant, improves its strength of materials and thickness; The 2nd, change shaft wall structure.At present, steel concrete wall construction commonly used has been difficult to adapt to the needs that Deep Mine is built, and external habitual cast iron or the cast steel borehole wall, mound guest's piece borehole wall, the concrete arc plate borehole wall need prefabricated on ground, and install in the down-hole, its construction technology is complicated, difficulty is large, cost is high, difficult quality guarantee.
Existing technology for example by annular closed skeleton is set in borehole wall inside, improves the total bearing capacity of the borehole wall.But 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.Because inboard steel plate is anchor clamp and the concrete binding by the back side only, 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.
Existing technology, for example by double-layer plate is set on the inside and outside surface of the borehole wall, radially connector is built the formation concrete walling.But the stressed least favorable position of the borehole wall is its medial region, and this type borehole wall utilizes double-layer plate that the borehole wall is implemented the overall radial constraint, 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, outside concrete intensity improves the contribution of borehole wall horizontal bearing capacity not remarkable.In addition, in the freeze-wellboring, in the irregular annular space between outer surface plate and country rock body, concrete pouring quality is difficult to guarantee, so this type borehole wall more is applicable to drilling shaft lining and caisson wall.
Three, summary of the invention
(1) goal of the invention
In view of the problem that prior art exists, the purpose of the invention is the steel plate steel reinforced concrete shaft wall structure that proposes a kind of more reasonable structure, bearing capacity is higher, difficulty of construction is less and has broad applicability.
(2) technical scheme
The steel plate steel reinforced concrete borehole wall of the invention, it mainly by: steel plate cylinder, hoop reinforcing bar, medial shaft to reinforcing bar, the vertical reinforcing bar in the outside, connector radially, and build concrete between steel plate cylinder and borehole wall template or steel plate cylinder and country rock body.
The steel plate cylinder is made of the plate with curved surface that multistage pre-bending is shaped, and each plate with curved surface installs and fixes first medial shaft on reinforcing bar, is welded into successively more closed tubular structure;
The hoop reinforcing bar is made of a plurality of shaped steel segmental arcs, and each shaped steel segmental arc installs and fixes first on the vertical reinforcing bar in the outside, becomes closing structure by welding or Bolt Connection again; The hoop reinforcing bar arranges by certain vertical spacing layering according to requirement of engineering; Between steel plate cylinder, the hoop reinforcing bar radially connector is set.
Specifically:
A kind of steel plate steel reinforced concrete borehole wall comprises that steel plate cylinder 1, hoop reinforcing bar 2, medial shaft are to reinforcing bar 3, the vertical reinforcing bar 4 in the outside, radially connector 5 and concrete 6;
Steel plate cylinder 1 is arranged on borehole wall inner surface; Steel plate cylinder 1 is circumferential along pit shaft, by the plate with curved surface of a plurality of segmental arcs cylindrical structure by the closure that is welded; Vertical along pit shaft, be directly or indirectly welding between the adjacent steel plate cylinder;
Medial shaft is laid to the outside that reinforcing bar 3 is adjacent to 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 is bolted or welds between reinforcing bar 3 and steel plate cylinder 1;
The vertical reinforcing bar 4 in the outside is in close proximity to inboard or the outside of hoop reinforcing bar 2; 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 weld between the vertical reinforcing bar 4 in the outside and the hoop reinforcing bar 2;
Steel plate cylinder 1 and hoop reinforcing bar 2 radially connect by connector 5 radially;
By between steel plate cylinder 1 and borehole wall template, or the interior concreting 6 of the annular space between steel plate cylinder 1 and the country rock body consists of the shaft wall structure of tubulars.
Drilling shaft lining is intersegmental when having flanged plate, and (that is: during the drilling shaft lining segmentation prefabricating, the steel plate cylinder of every section borehole wall welds with the two ends flanged plate in indirectly welding between the adjacent steel plate cylinder; When the borehole wall is installed, directly be welded to connect again between the flanged plate of contact between the adjacent borehole wall section).
Concrete 6 is ordinary concrete, high performance concrete or fibrous concrete.
The shaped steel segmental arc of hoop reinforcing bar 2 is channel-section steel or H shaped steel or similar shaped steel; 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.
(3) technique effect
Shaft wall is subjected to the horizontal soil pressure effect, and the least favorable force part is medial region.Therefore, the key of sidewall safety carrying is to improve the strength of materials and the reinforcement ratio (steel content) at above-mentioned position.
The invention, by the steel plate cylinder is set in borehole wall surface,, distance surperficial a distance inner at the borehole wall arranges the hoop reinforcing bar, and form space structures by connector radially, can be subject to stronger radial constraint effect so that build in concrete wherein, thereby give full play to concrete three axle compressive strength, form the core supporting region, and then improve the ultimate bearing capacity of the borehole wall.Compare with the existing well wall construction, the inboard steel ratio of this type borehole wall is high, has higher strength and stiffness, can effectively reduce thickness of shaft wall, reduce project cost, and it is rational in infrastructure, and it is comparatively easy to construct, and has widely applicability,
Be particularly useful for carrying the deep shaft of highland pressure, high hydraulic pressure.
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-the 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 the-the 2nd, embodiment two structural representations (the boring method borehole wall, segmentation prefabricating; The channel-section steel reinforcing bar), wherein, Fig. 2-the 1st, the axial cross section schematic diagram of embodiment two, Fig. 2-the 2nd, the radial section schematic diagram of embodiment two.
Fig. 3-1 and Fig. 3 the-the 2nd, embodiment three structural representations (the drop shaft sinking borehole wall, freezing process inner layer well wall, from bottom to top continuous placing; H shaped steel reinforcing bar), wherein, Fig. 3-the 1st, the axial cross section schematic diagram of embodiment three, Fig. 3-the 2nd, the radial section schematic diagram of embodiment three.
Fig. 4-1 and Fig. 4 the-the 2nd, embodiment four structural representations (the drop shaft sinking borehole wall, freezing process inner layer well wall, from bottom to top continuous placing; The channel-section steel reinforcing bar), wherein, Fig. 4-the 1st, the axial cross section schematic diagram of embodiment four, Fig. 4-the 2nd, the radial section schematic diagram of embodiment four.
Fig. 5-1 and Fig. 5 the-the 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-the 1st, the axial cross section schematic diagram of embodiment five, Fig. 5-the 2nd, the radial section schematic diagram of embodiment five.
Fig. 6-1 and Fig. 6 the-the 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-the 1st, the axial cross section schematic diagram of embodiment six, Fig. 6-the 2nd, the radial section schematic diagram of embodiment six.
Among above-mentioned Fig. 1-1～Fig. 2-2, A is the upper surface flanged plate, and B is the lower surface flanged plate.
Among 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.
Five, the specific embodiment
A kind of steel plate steel reinforced concrete borehole wall, mainly by steel plate cylinder 1, hoop reinforcing bar 2, medial shaft to reinforcing bar 3, the vertical reinforcing bar 4 in the outside, radially connector 5 and concrete 6 monobloc casts form.
Steel plate cylinder 1 is arranged on borehole wall inner surface; Circumferential along pit shaft, by the plate with curved surface of a plurality of segmental arcs by being welded to form closed cylindrical structure; Vertical along pit shaft, between the adjacent steel plate cylinder directly or indirectly when having flanged plate (drilling shaft lining is intersegmental) pass through weld connection.
Medial shaft is laid to the outside that reinforcing bar 3 is close to steel plate cylinder 1; It is the vertical structure that is formed by welding or Bolt Connection by the shaped steel section; The shaped steel section is including but not limited to H shaped steel, channel-section steel; Medial shaft is to passing through bolt or weld connection between reinforcing bar 3 and the steel plate cylinder 1.
The vertical reinforcing bar 4 in the outside is laid in inboard or the outside of hoop reinforcing bar 2; It is the vertical structure that is formed by welding or Bolt Connection by the shaped steel section; The shaped steel section is including but not limited to H shaped steel, channel-section steel; Pass through bolt or weld connection between the vertical reinforcing bar 4 in the outside and the hoop reinforcing bar 2.
Steel plate cylinder 1 and hoop reinforcing bar 2 are realized radially connecting by connector 5 radially; Radially connector 5 is including but not limited to accessories such as the threaded rod of both-end band silk and nuts.
Form the shaft wall structure of tubular by concreting 6 in the annular space between steel plate cylinder 1, borehole wall template (boring method or drop shaft sinking construction) or country rock body (normal sinking, construction freezing method); Concrete 6 can adopt ordinary concrete, high performance concrete or fibrous concrete.
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, there is the annular flange plate at borehole wall two ends)
The steel plate steel reinforced concrete borehole wall of the invention is mainly by steel plate cylinder 1, hoop reinforcing bar 2(H shaped steel), medial shaft is to reinforcing bar 3(H shaped steel), the outside vertical reinforcing bar 4(H shaped steel), radially connector 5, concrete 6 form (seeing Fig. 1-1 and Fig. 1-2).
Implementation method:
(1) on the flanged plate of borehole wall lower end, directly the vertical reinforcing bar 4 in the laying outside, medial shaft can be adjusted as required to reinforcing bar 3(circle spacing, circumferential spacing along different circles) and be welded on the flanged plate;
(2) the shaped steel segmental arc is installed and fixed on the vertical reinforcing bar 4 in the outside, form closed hoop reinforcing bar 2 by welding or Bolt Connection; The plate with curved surface that again pre-bending is shaped installs and fixes medial shaft on reinforcing bar 3, by being welded to form closed steel plate cylinder 1;
(3) utilize radially connector 5, connect steel plate cylinder 1, hoop reinforcing bar 2 formation space structures;
(4) flanged plate of upper end is installed, and and medial shaft to firm welding between reinforcing bar, the vertical reinforcing bar in the outside, the steel plate cylinder;
(5) the prefabricated required exterior sheathing of the borehole wall and braced structures (annotate: the steel plate cylinder is as inner formword) are installed;
(6) in the annular space between inboard steel plate cylinder, exterior sheathing, two ends flanged plate, concreting is prefabricated into the steel plate steel reinforced concrete borehole wall section that is applicable to sinking by boring.
Embodiment two: the boring method borehole wall (segmentation prefabricating, there is the annular flange plate at borehole wall two ends)
The steel plate steel reinforced concrete borehole wall of the invention is mainly by steel plate cylinder 1, hoop reinforcing bar 2(channel-section steel), medial shaft is to reinforcing bar 3(channel-section steel), the outside vertical reinforcing bar 4(channel-section steel), radially connector 5, concrete 6 form (seeing Fig. 2-1 and Fig. 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 steel plate steel reinforced concrete borehole wall of the invention is mainly by steel plate cylinder 1, hoop reinforcing bar 2(H shaped steel), medial shaft is to reinforcing bar 3(H shaped steel), the outside vertical reinforcing bar 4(H shaped steel), radially connector 5, concrete 6 form (seeing Fig. 3-1 and Fig. 3-2).
Implementation method:
(1) at first along difference circle footpath, vertical reinforcing bar 4, medial shaft can be adjusted as required to the circle spacing of the vertical reinforcing bar of reinforcing bar 3(, circumferential spacing outside arranging); And connect firmly to reinforcing bar with the vertical reinforcing bar in the outside of the bottom borehole wall, medial shaft respectively;
(2) the shaped steel segmental arc is installed and fixed on the vertical reinforcing bar 4 in the outside, and weld or become with Bolt Connection the hoop reinforcing bar 2 of closure;
(3) plate with curved surface that pre-bending is shaped installs and fixes medial shaft on reinforcing bar 3, is welded into closed steel plate cylinder 1; And connect with the steel plate cylinder butt welding of the bottom borehole wall.
(4) utilize radially connector 5, connect steel plate cylinder 1, hoop reinforcing bar 2 formation space structures;
(5) for the drop shaft sinking sinking shaft, the borehole wall is installed is built required outboard template (annotate: the steel plate cylinder is as inner formword);
(6) concreting in the annular space between steel plate cylinder 1, borehole wall exterior sheathing (drop shaft sinking sinking shaft) or country rock body (freeze-wellboring inner layer well wall) forms the steel plate steel reinforced concrete borehole wall.
Embodiment four: the drop shaft sinking borehole wall, freezing process inner layer well wall (continuous placing from bottom to top)
The steel plate steel reinforced concrete borehole wall of the invention is mainly by steel plate cylinder 1, hoop reinforcing bar 2(channel-section steel), medial shaft is to reinforcing bar 3(channel-section steel), the outside vertical reinforcing bar 4(channel-section steel), radially connector 5, concrete 6 form (seeing Fig. 4-1 and Fig. 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 steel plate steel reinforced concrete borehole wall of the invention is mainly by steel plate cylinder 1, hoop reinforcing bar 2(H shaped steel), medial shaft is to reinforcing bar 3(H shaped steel), the outside vertical reinforcing bar 4(H shaped steel), radially connector 5, concrete 6 form (seeing Fig. 5-1 and Fig. 5-2).
Implementation method:
(1) at first along difference circle footpath, vertical reinforcing bar 4, medial shaft can be adjusted as required to the circle spacing of the vertical reinforcing bar of reinforcing bar 3(, circumferential spacing outside arranging); And connect firmly to reinforcing bar with the vertical reinforcing bar in the outside of a upper borehole wall section, medial shaft respectively;
(2) the shaped steel segmental arc is installed and fixed on the vertical reinforcing bar 4 in the outside, and weld or become with Bolt Connection the hoop reinforcing bar 2 of closure;
(3) plate with curved surface that pre-bending is shaped installs and fixes medial shaft on reinforcing bar 3, is welded into closed steel plate cylinder 1; And connect with the steel plate cylinder butt welding of a upper borehole wall section, but need at steel plate cylinder upper limb (connecing a batch position) along circumferentially staying the hole of establishing some, so that concreting, vibrate.
(4) utilize radially connector 5, connect steel plate cylinder 1, hoop reinforcing bar 2 formation space structures;
(5) borehole wall section is installed and builds required bottom blade foot model (annotate: the steel plate cylinder is as inner formword);
(6) in the annular space between steel plate cylinder 1, bottom blade foot model, outside country rock body, concreting forms the steel plate steel reinforced concrete borehole wall.
(7) after the borehole wall hardening of concrete, by welding steel, the hole of shutoff steel plate cylinder 1 upper limb.
Embodiment six: the normal sinking borehole wall, freezing process outer shaft wall (segmentation is from top to bottom built)
The steel plate steel reinforced concrete borehole wall of the invention is mainly by steel plate cylinder 1, hoop reinforcing bar 2(H shaped steel), medial shaft is to reinforcing bar 3(H shaped steel), the outside vertical reinforcing bar 4(H shaped steel), radially connector 5, concrete 6 form (seeing Fig. 6-1 and Fig. 6-2).
Implementation method: identical with embodiment five.
The inboard steel ratio of this type borehole wall is high, and the concrete between steel plate cylinder and hoop reinforcing bar is in three-dimensional stress state, can significantly improve compressive strength, 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 cost; It is rational in infrastructure, and easy construction has widely applicability.Be particularly useful for carrying the deep shaft of highland pressure, high hydraulic pressure.
Claims (4)
1. steel plate steel reinforced concrete borehole wall is characterized in that: comprise that steel plate cylinder (1), hoop reinforcing bar (2), medial shaft are to reinforcing bar (3), the vertical reinforcing bar in the outside (4), radially connector (5) and concrete (6);
Steel plate cylinder (1) is arranged on borehole wall inner surface; Steel plate cylinder (1) is circumferential along pit shaft, by the plate with curved surface of a plurality of segmental arcs cylindrical structure by the closure that is welded; Vertical along pit shaft, be directly or indirectly welding between the adjacent steel plate cylinder;
Hoop reinforcing bar (2) is arranged on borehole wall inside, and the distance between the steel plate cylinder (1) is adjustable; Hoop reinforcing bar (2) is circumferential along pit shaft, by a plurality of shaped steel segmental arcs by welding or the annular closing structure that is formed by connecting of bolt; Each shaped steel segmental arc is vertical along pit shaft, layered arrangement successively, and interlamellar spacing is adjustable;
Medial shaft is laid to the outside that reinforcing bar (3) is adjacent to 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 is bolted or welds between reinforcing bar (3) and steel plate cylinder (1);
The vertical reinforcing bar (4) in the outside is in close proximity to inboard or the outside of hoop reinforcing bar (2); 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 weld between the vertical reinforcing bar (4) in the outside and the hoop reinforcing bar (2);
Steel plate cylinder (1) and hoop reinforcing bar (2) radially connect by connector (5) radially;
By between steel plate cylinder (1) and borehole wall template, or the interior concreting (6) of the annular space between steel plate cylinder (1) and the country rock body consists of the shaft wall structure of tubular.
2. the steel plate steel reinforced concrete borehole wall according to claim 1 is characterized in that: drilling shaft lining is intersegmental when having flanged plate, indirectly welding between the adjacent steel plate cylinder.
3. the steel plate steel reinforced concrete borehole wall according to claim 1, it is characterized in that: concrete (6) is ordinary concrete, high performance concrete or fibrous concrete.
4. the steel plate steel reinforced concrete borehole wall according to claim 1, it is characterized in that: the shaped steel segmental arc of hoop reinforcing bar (2) is channel-section steel or H shaped steel or similar shaped steel; 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.
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| CN201310046617.2A CN103075158B (en) | 2013-02-04 | 2013-02-04 | Steel plate and steel reinforced concrete well wall |
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| CN201310046617.2A CN103075158B (en) | 2013-02-04 | 2013-02-04 | Steel plate and steel reinforced concrete well wall |
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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 |
| CN103982188A (en) * | 2014-06-03 | 2014-08-13 | 中铁第一勘察设计院集团有限公司 | Supporting structure system of rock stratum large-section deep vertical shaft and construction method of supporting structure system |
| CN104627563A (en) * | 2015-01-27 | 2015-05-20 | 中钢集团马鞍山矿山研究院有限公司 | Strengthening method for preventing detachment of lining of ore storage bin |
| CN104747192A (en) * | 2015-01-27 | 2015-07-01 | 中国矿业大学 | Steel pipe concrete stress deformation feedback supporting structure suitable for vertical shaft |
| 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 |
| CN106522959A (en) * | 2016-12-12 | 2017-03-22 | 中国矿业大学 | Steel-structure waterproof jointing plate of well wall and construction process of steel-structure waterproof jointing plate |
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| CN109751053A (en) * | 2018-12-21 | 2019-05-14 | 中国矿业大学 | A kind of double-layer wall of well and construction technology of the radially connected component of band |
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