CN1900484A - Single layer well wall with connecting plate and its constructing method - Google Patents
Single layer well wall with connecting plate and its constructing method Download PDFInfo
- Publication number
- CN1900484A CN1900484A CN 200610088128 CN200610088128A CN1900484A CN 1900484 A CN1900484 A CN 1900484A CN 200610088128 CN200610088128 CN 200610088128 CN 200610088128 A CN200610088128 A CN 200610088128A CN 1900484 A CN1900484 A CN 1900484A
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- Prior art keywords
- connecting plate
- single layer
- wall
- borehole wall
- layer well
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- 239000002356 single layer Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title abstract description 6
- 239000004567 concrete Substances 0.000 claims abstract description 38
- 238000010276 construction Methods 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 239000004033 plastic Substances 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000011218 segmentation Effects 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000009416 shuttering Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000008014 freezing Effects 0.000 abstract description 8
- 238000007710 freezing Methods 0.000 abstract description 8
- 239000011435 rock Substances 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000002986 polymer concrete Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
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Abstract
The invention is suitable to sinking operation inside alluvium and rock formation. water tight connection plate in 'T'shaped cross section is setup at wall of a well in single layer at connection place when construction goes downwards. Connecting rod is setup between connection places. The disclosed method changes old construction mode that new and old concretes of lower and upper segments of well wall are contacted directly at place of the connection plate into mode that concrete contact with connection plate. Thus, the invention raises water seal performance at connection part of well wall greatly. Well wall in single layer can be as temporary supporting structure or as permanent supporting structure. Comparing with technique of freezing method, the invention simplifies construction technique, reduces cost greatly. Features are: simple structure, convenience of construction, good tightness, small total thickness, and wide practicability.
Description
Technical field
The present invention relates to single layer well wall and job practices thereof, be particularly useful for the freeze-wellboring engineering in alluvium and the rock stratum, also be applicable to the sinking operation in alluvium and the rock stratum with connecting plate.
Background technology
Traditional freeze-wellboring technology adopts the two-layer compound shaft wall structure usually, and the borehole wall is made up of outer wall (temporary support structures when pit shaft tunnels downwards), inwall (pit shaft permanent support structure).After frost wall forms, driving downwards, and construction outer wall at first piecemeal (annotate: like this Shi Gong upper and lower section outer wall newly, connect stubble between old concrete, this connecing batch is non-water-tight); External wall construction on earth after, the inwall of constructing continuously from bottom to top again; Lay certain thickness plastic plate between the inside and outside wall; After thawing, frost wall carries out interlayer slip casting between inside and outside wall.Inwall, outer wall are considered by carrying separately during the design borehole wall: the horizontal design load of inwall is the hydrostatic pressure of the corresponding degree of depth; The horizontal design load of outer wall is a pressure of freezing wall.
At present, the alluvium thickness that China's freezing shaft passes is increasing, and a considerable amount of pit shafts will pass the above special thick alluvium of the thick 500m of reaching (even 700m).With this understanding, when adopting the two-layer compound shaft wall structure, inside and outside wall thickness often surpasses 1m respectively, and borehole wall gross thickness surpasses 2～2.5m, and the utilization rate of shaft excavation section (ratio that the pit shaft net sectional area is long-pending with excavated section) is only less than 35%.And adopting the two-layer compound shaft wall structure, the shaft excavation radius is big, and can therefore cause frost wall thickness to increase considerably.Therefore the two-layer compound shaft wall structure has not only increased pit shaft pick block engineering cost greatly, and has significantly increased the expense of pit shaft freezing engineering, and along with the increase of the freeze-wellboring degree of depth, the two-layer compound shaft wall structure is more and more unreasonable.With this understanding, the shaft wall structure form of development of new and borehole wall construction technology, and then the utilization rate of raising shaft excavation section, the urgency that reduces construction costs is more and more outstanding.
Summary of the invention
Technical problem: the purpose of this invention is to provide a kind of single layer well wall and job practices thereof, can replace the two-layer compound shaft wall structure, realize simplifying the freeze-wellboring construction technology, reduce construction costs with connecting plate.
Technical scheme: the single layer well wall of band connecting plate of the present invention, the cross section of adopting the joint part of the borehole wall section of line mode driving and masonry construction under the segmentation to be provided with percolation-proof at freezing shaft is
The connecting plate of shape is provided with many connecting rods between connecting plate and the connecting plate.Can be provided with the reinforcing bar that improves borehole wall bearing capacity in the described borehole wall section.Described borehole wall section is formed by concrete or fibrous concrete pouring, is added with in the concrete to account for total cementitious material amount and be no more than 15% expansion agent.The cross section of described connecting plate can also be
Shape or corrugated.The material of described connecting rod and connecting plate can be a metal, also can be plastics or fiber.Described borehole wall section inboard can be provided with steel plate or arc with ribbing.Also can be provided with steel frame in the described borehole wall section.
The job practices of the single layer well wall of band connecting plate of the present invention adopts the descending form of construction work of segmentation to tunnel with pit shaft downwards, construction piecemeal, and its step is as follows:
Step 1: when pit shaft tunnel out downwards a section high after, lay plastic foamboard according to the design needs along well group;
Step 2: the connecting plate segmental arc of making is transported to work plane, and assembling connects into the non-leakage whole connecting plate of joint;
Step 3: the connecting plate that will assemble at work plane with connecting rod and the connecting plate of the high borehole wall lower edge of the preceding paragraph couple together;
Step 4: according to design needs assembling reinforcement or installation steel frame;
Step 5:, then organize shuttering if borehole wall inboard need not to be provided with steel plate or arc with ribbing; Otherwise then utilize steel plate or arc with ribbing as template;
Step 6: fluid concrete between template and well group forms borehole wall section;
Step 7: repeat above-mentioned steps, pick is built to projected depth, forms single layer well wall.
Beneficial effect: the single layer well wall of band connecting plate of the present invention and job practices thereof, adopt connecting plate form of structure in borehole wall section junction, the line mode pick is built under the segmentation.The single layer well wall of this kind band connecting plate connects batch mode and prevents that the borehole wall two aspects that ftracture from addressing borehole wall seepy question from change.On the one hand, by at the borehole wall joint part connecting plate being set, new, the old concrete that partly or entirely become the upper and lower section borehole wall directly contact to concrete contacts with connecting plate, significantly improve the sealing performance that the borehole wall connects stubble; On the other hand, by taking the shrinkage strain of compensating concrete, and the vertical deformation of confined concrete, make and do not produce vertical tensile stress in the borehole wall concrete all the time, thereby guarantee that the borehole wall can not produce the penetrability circumferential crack.This single layer well wall not only can be used as the temporary support structures in the pit shaft pick block process, can be used as the permanent support structure again.It can replace the two-layer compound freezing shaft wall of double-deck freezing shaft wall and strap clamp layer, has not only simplified the freezing shaft wall construction technology, and can reduce construction costs significantly, brings remarkable economic efficiency; It is simple in structure, easy construction, and good seal performance, gross thickness is little, has practicality widely.
Description of drawings
Fig. 1 is single layer well wall embodiment one structure chart of band connecting plate of the present invention.
Fig. 2 is single layer well wall embodiment two structure charts of band connecting plate of the present invention.
Fig. 3 is single layer well wall embodiment three structure charts of band connecting plate of the present invention.
Fig. 4 is single layer well wall embodiment four structure charts of band connecting plate of the present invention.
The specific embodiment
The invention will be further described below in conjunction with the embodiment in the accompanying drawing:
The single layer well wall of band connecting plate of the present invention, shown in Figure 1, mainly constitute by concrete 1, connecting rod 2, connecting plate 3, reinforcing bar 4, according to the design needs, can in the borehole wall, add steel frame 6, shown in Figure 3; Or add steel plate 5 in borehole wall inboard, shown in Figure 2; Or borehole wall inboard adds arc 7 with ribbing, and is shown in Figure 4.The cross section of connecting plate 3 can be
Shape can also be
Shape or corrugated, connecting plate 3 is located at the joint part of single layer well wall section 1, and connecting plate 3 mainly works batch sealing effect that connects.At upper and lower section borehole wall joint part, utilize connecting plate 3, new, the old concrete that partly or entirely become the upper and lower section borehole wall directly contact to concrete contacts with connecting plate 3, have improved the sealing performance that connects stubble.Be provided with connecting rod 2 between connecting plate 3 and the connecting plate 3, connecting rod 2 is used to suspend in midair concrete and connecting plate 3, connecting plate 3 be connected bar 2 suspention concrete and the concrete distortion of constraint, connecting rod 2 constitutes concrete vertical constraint system with connecting plate 3, confined concrete is not vertically producing tensile stress, and improves the adhesion between connecting plate 3 and concrete.The material of connecting rod 2 and connecting plate 3 can be a metal, also can be plastics or fiber.Can be provided with the reinforcing bar 4 that improves borehole wall bearing capacity in the borehole wall section 1, when being furnished with reinforcing bar 4 in the borehole wall, available part vertical reinforcement is as connecting rod 2.The concrete of borehole wall section 1 can be a cement concrete, also can be fibrous cement concrete or polymer concrete, and that concrete mainly plays is bonding, solidified forming and carrying effect, the borehole wall space of filling between upper and lower connecting plate 3.For the shrinkage strain of compensating concrete with at the certain compressive pre-stress of the vertical generation of the borehole wall, in concrete, add the expansion agent that is no more than total cementitious material amount 15% in case of necessity, concrete shrinkage strain is compensated; Concrete vertical deformation retrains to the borehole wall, makes and does not produce vertical tensile stress in the borehole wall concrete all the time, guarantees that the borehole wall does not produce the penetrability circumferential crack.According to improving borehole wall bearing capacity and increasing needing of the borehole wall ductility reinforcing bar 4, steel plate 5, steel frame 6 and arc with ribbing 7 are set selectively, then form steel concrete borehole wall section, steel plate concrete borehole wall section, steel reinforced concrete borehole wall section and arc concrete composite shaft lining section with ribbing respectively.
The job practices of the single layer well wall of band connecting plate of the present invention adopts under the segmentation line mode to construct piecemeal, when pit shaft tunnel out downwards a section high after, lay plastic foamboard according to the design needs along well group; Connecting plate 3 segmental arcs of making are transported to work plane, and assembling connects into the non-leakage whole connecting plate 3 of joint; The connecting plate 3 that will assemble at work plane with connecting rod 2 couples together with the connecting plate 3 of the high borehole wall of the preceding paragraph lower end; If borehole wall design needs arrangement of reinforcement 4 or steel frame 5, then assembling reinforcement 4 or steel frame 5 is installed; If steel plate 6 or arc with ribbing 7 have not been designed in borehole wall inboard, then organize shuttering; Otherwise then utilize steel plate 6 or arc with ribbing 7 as template; Fluid concrete between template and well group forms borehole wall section 1; Repeat above-mentioned steps, driving and masonry construction forms single layer well wall to projected depth.
Claims (9)
1, a kind of single layer well wall with connecting plate is characterized in that: the cross section that is provided with percolation-proof at the joint part that adopts the borehole wall section (1) of line mode driving and masonry construction under the segmentation is
The connecting plate of shape (3) is provided with many connecting rods (2) between connecting plate (3) and the connecting plate (3).
2, the single layer well wall of band connecting plate according to claim 1 is characterized in that: the reinforcing bar (4) that is provided with many raising borehole wall bearing capacities in the described borehole wall section (1).
3, the single layer well wall of band connecting plate according to claim 1 is characterized in that: described borehole wall section (1) is formed by concrete or fibrous concrete pouring, is added with in the concrete to account for total cementitious material amount and be no more than 15% expansion agent.
4, the single layer well wall of band connecting plate according to claim 1 is characterized in that: the cross section of described connecting plate (3) can also be
Shape or corrugated.
5, according to the single layer well wall of claim 1 or 4 described band connecting plates, it is characterized in that: the material of described connecting rod (2) and connecting plate (3) can be a metal, also can be plastics or fiber.
6, according to the single layer well wall of claim 1,2 or 3 described band connecting plates, it is characterized in that: described borehole wall section (1) inboard is provided with steel plate (5).
7, according to the single layer well wall of claim 1,2 or 3 described band connecting plates, it is characterized in that: be provided with steel frame (6) in the described borehole wall section (1).
8, according to the single layer well wall of claim 1,2 or 3 described band connecting plates, it is characterized in that: described borehole wall section (1) inboard is provided with arc with ribbing (7).
9, a kind of job practices of the single layer well wall with connecting plate adopts the descending form of construction work of segmentation to tunnel with pit shaft downwards, construction piecemeal, and it is characterized in that: construction sequence is as follows:
Step 1: when pit shaft tunnel out downwards a section high after, lay plastic foamboard according to the design needs along well group;
Step 2: connecting plate (3) segmental arc of making is transported to work plane, and assembling connects into the non-leakage whole connecting plate (3) of joint;
Step 3: the connecting plate (3) that will assemble at work plane with connecting rod (2) couples together with the connecting plate (3) of the high borehole wall lower edge of the preceding paragraph;
Step 4: assembling reinforcement (4) or installation steel frame (6);
Step 5:, then organize shuttering if borehole wall inboard need not to be provided with steel plate (5) or arc with ribbing (7); Otherwise then utilize steel plate (5) or arc with ribbing (7) as template;
Step 6: fluid concrete between template and well group forms borehole wall section (1);
Step 7: repeat above-mentioned steps, finish the pit shaft pick and build, form single layer well wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100881283A CN100526604C (en) | 2006-06-27 | 2006-06-27 | Single layer well wall with connecting plate and its constructing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100881283A CN100526604C (en) | 2006-06-27 | 2006-06-27 | Single layer well wall with connecting plate and its constructing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1900484A true CN1900484A (en) | 2007-01-24 |
| CN100526604C CN100526604C (en) | 2009-08-12 |
Family
ID=37656449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100881283A Active CN100526604C (en) | 2006-06-27 | 2006-06-27 | Single layer well wall with connecting plate and its constructing method |
Country Status (1)
| Country | Link |
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| CN (1) | CN100526604C (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906973A (en) * | 2010-07-23 | 2010-12-08 | 中国矿业大学 | Composite well wall with compressible interlayer and construction method thereof |
| CN102619521A (en) * | 2012-04-19 | 2012-08-01 | 中国矿业大学 | Construction method for vertical shaft bedrock section wall structure |
| CN104453912A (en) * | 2014-11-25 | 2015-03-25 | 安徽恒源煤电股份有限公司 | Vertical reducible joint of freezing shaft wall |
| CN105952476A (en) * | 2016-06-14 | 2016-09-21 | 山东华联矿业股份有限公司 | Vertical shaft wall jointing process for mine |
| 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 |
| CN107100615A (en) * | 2017-03-21 | 2017-08-29 | 中国矿业大学 | A kind of radial direction prestressing force lining structure of drilling shaft and its construction method |
| CN107345483A (en) * | 2017-08-21 | 2017-11-14 | 安徽理工大学 | A kind of newly-built antiseepage mine shaft and preparation method thereof |
| CN108915734A (en) * | 2018-06-18 | 2018-11-30 | 苏州大学 | A kind of corrugated steel-Combined concrete supporting construction and its construction method |
| CN108915691A (en) * | 2018-06-27 | 2018-11-30 | 北京科技大学 | A kind of water proof anti-seepage concrete single-layer lining construction method under aqueous basement rock environment |
| CN109695452A (en) * | 2019-01-07 | 2019-04-30 | 中国矿业大学 | A kind of single layer pit shaft and its construction method that can axially allow pressure |
| 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 |
| CN114607386A (en) * | 2022-04-18 | 2022-06-10 | 中国矿业大学 | Single-layer well wall with connecting and water stopping structure and grouting system and construction method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2922327C2 (en) * | 1979-06-01 | 1982-10-07 | Gewerkschaft Auguste Victoria, 4370 Marl | Shaft construction, especially for the construction of shafts sunk using the freezing process in unstable, water-bearing mountains |
| DE3008727C2 (en) * | 1980-03-07 | 1982-10-14 | Bergwerksverband Gmbh, 4300 Essen | Flexible freezer shaft exterior construction |
| GB2160562B (en) * | 1984-06-22 | 1987-09-16 | Foraky Limited | Ground-freezing method |
| DE3506722C1 (en) * | 1985-02-26 | 1986-06-12 | Bergwerksverband Gmbh, 4300 Essen | Sliding shaft lining with buoyancy elements |
| CN1108435C (en) * | 2000-04-11 | 2003-05-14 | 山东科技大学防水建材研究所 | Anti-leakage compound wall of freeze well and its construction method |
-
2006
- 2006-06-27 CN CNB2006100881283A patent/CN100526604C/en active Active
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906973A (en) * | 2010-07-23 | 2010-12-08 | 中国矿业大学 | Composite well wall with compressible interlayer and construction method thereof |
| CN102619521A (en) * | 2012-04-19 | 2012-08-01 | 中国矿业大学 | Construction method for vertical shaft bedrock section wall structure |
| CN102619521B (en) * | 2012-04-19 | 2014-10-29 | 中国矿业大学 | Construction method for vertical shaft bedrock section wall structure |
| CN104453912A (en) * | 2014-11-25 | 2015-03-25 | 安徽恒源煤电股份有限公司 | Vertical reducible joint of freezing shaft wall |
| CN105952476B (en) * | 2016-06-14 | 2018-07-06 | 山东华联矿业股份有限公司 | The mine vertical shaft borehole wall connects a batch technique |
| CN105952476A (en) * | 2016-06-14 | 2016-09-21 | 山东华联矿业股份有限公司 | Vertical shaft wall jointing process for mine |
| 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 |
| CN107100615A (en) * | 2017-03-21 | 2017-08-29 | 中国矿业大学 | A kind of radial direction prestressing force lining structure of drilling shaft and its construction method |
| CN107345483A (en) * | 2017-08-21 | 2017-11-14 | 安徽理工大学 | A kind of newly-built antiseepage mine shaft and preparation method thereof |
| CN107345483B (en) * | 2017-08-21 | 2023-02-28 | 安徽理工大学 | Newly-built seepage-proof coal mine shaft and preparation method thereof |
| CN108915734A (en) * | 2018-06-18 | 2018-11-30 | 苏州大学 | A kind of corrugated steel-Combined concrete supporting construction and its construction method |
| CN108915691A (en) * | 2018-06-27 | 2018-11-30 | 北京科技大学 | A kind of water proof anti-seepage concrete single-layer lining construction method under aqueous basement rock environment |
| 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 |
| CN109695452A (en) * | 2019-01-07 | 2019-04-30 | 中国矿业大学 | A kind of single layer pit shaft and its construction method that can axially allow pressure |
| WO2020143329A1 (en) * | 2019-01-07 | 2020-07-16 | 中国矿业大学 | Single-layer wellbore capable of realizing axial yielding, and method for constructing same |
| CN114607386A (en) * | 2022-04-18 | 2022-06-10 | 中国矿业大学 | Single-layer well wall with connecting and water stopping structure and grouting system and construction method thereof |
| WO2023202455A1 (en) * | 2022-04-18 | 2023-10-26 | 中国矿业大学 | Single-layer well wall having jointed water-stop structure and grouting system, and construction method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100526604C (en) | 2009-08-12 |
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