CN106894820B - A kind of waterproof well wall retractable device and its construction technology - Google Patents
A kind of waterproof well wall retractable device and its construction technology Download PDFInfo
- Publication number
- CN106894820B CN106894820B CN201710034787.7A CN201710034787A CN106894820B CN 106894820 B CN106894820 B CN 106894820B CN 201710034787 A CN201710034787 A CN 201710034787A CN 106894820 B CN106894820 B CN 106894820B
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- well wall
- shaped steel
- steel structure
- annular form
- plate
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- 238000010276 construction Methods 0.000 title claims abstract description 35
- 238000005516 engineering process Methods 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 76
- 239000010959 steel Substances 0.000 claims abstract description 76
- 238000007906 compression Methods 0.000 claims abstract description 38
- 230000006835 compression Effects 0.000 claims abstract description 38
- 239000000945 filler Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 230000004888 barrier function Effects 0.000 claims description 31
- 239000000463 material Substances 0.000 claims description 25
- 239000002131 composite material Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 6
- 238000009415 formwork Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000011796 hollow space material Substances 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 239000002689 soil Substances 0.000 description 4
- 238000005345 coagulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005325 percolation Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D7/00—Shaft equipment, e.g. timbering within the shaft
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D1/00—Sinking shafts
- E21D1/10—Preparation of the ground
- E21D1/12—Preparation of the ground by freezing
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D5/00—Lining shafts; Linings therefor
- E21D5/11—Lining shafts; Linings therefor with combinations of different materials, e.g. wood, metal, concrete
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Wood Science & Technology (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
A kind of waterproof well wall retractable device and its construction technology.It can compression apparatus include circular annular form U-shaped steel structure, arch brace plate and compressible filler, U-shaped steel structure segmental arc is end to end constitutes by several for circular annular form U-shaped steel structure, also by several, curved support plate is end to end forms for arch brace plate, arch brace plate is fixedly connected on the inside of the open end of circular annular form U-shaped steel structure, and compressible filler is loaded in the cavity formed between circular annular form U-shaped steel structure and arch brace plate.The configuration of the present invention is simple, easy for construction, good airproof performance, compression ratio is high, and reliable working performance can be effectively reduced project cost and engineering construction difficulty, there is very extensive practicability in the art.
Description
Technical field
The present invention relates to a kind of waterproof well wall retractable device and its construction technology, the vertical suitable for construction freezing method is double-deck
The inner layer well wall of concrete composite shaft lining.
Background technique
As mining activities depth is constantly deepened, more and more pitshafts need to pass through thick surface soil using freezing process
Or the aqueous incompetent bed of hole is caused the sedimentation on stratum and is applied to due to freeze thawing sedimentation, surface soil dewatering and drainage of aquifer water etc.
Pit shaft vertical force brings well shaft destroyed engineering accident.
In order to solve the problems, such as ground settlement bring well shaft destroyed, forefathers have developed it is a variety of can compression apparatus, when the borehole wall is perpendicular
When being greater than Shaft wall design to stress allows vertical load, can compression apparatus will generate vertical compressive deformation, the release borehole wall is excessive
Vertical force makes the vertical stress of the borehole wall be no more than the allowable stress of design, prevents the borehole wall from break accident occurs.The existing dress that contracts
Install that meter compression ratio is very high, due to can compression apparatus stress complexity, the constraint vulnerable to outer shaft wall cause can compression apparatus it is real
Border compression ratio reduces, and design compression ratio is not achieved.Due to the abominable of wellbore conditions, it is existing can compression apparatus and outer shaft wall it
Between be also easy to produce gap, cause the water in stratum to leak into well seriously, cause the borehole wall damage and produce dangerous.
Summary of the invention
The purpose of the present invention is providing for the shortcoming in prior art, a kind of structure is simple, easy for construction, compression
Rate height, good airproof performance, the waterproof well wall retractable device of reliable working performance and its construction technology.
The technical solution used to solve the technical problems of the present invention is that:
A kind of waterproof well wall retractable device is mounted on the seam crossing of the inner layer well wall of the composite concrete borehole wall, described
Can compression apparatus include circular annular form U-shaped steel structure, arch brace plate and compressible filler, if circular annular form U-shaped steel structure by
The dry end to end composition of U-shaped steel structure segmental arc, also by several, curved support plate is end to end forms for arch brace plate, annulus
Support plate is fixedly connected on the inside of the open end of circular annular form U-shaped steel structure, circular annular form U-shaped steel structure and arch brace plate it
Between load compressible filler in the cavity that is formed.
A kind of waterproof well wall retractable device applies the construction technology in newly-built composite well wall of vertical shaft, and construction procedure is as follows:
A. when inner layer well wall is poured into the design height of side water barrier, decentralization side water barrier, decentralization have been welded
Ring flange and lower ring seal board group are fit, and side water barrier is close to outer shaft wall construction, are welded to connect side water proof version and flanged plate；
B. staying the pouring hole set to pour after formwork erection by ring flange can the high lower inner layer well wall of compression apparatus lower section section；C. decentralization is welded
The assembly of U-shaped steel structure segmental arc and upper ring seal plate, and assemble and form circular annular form U-shaped steel structure, upper ring seal plate
It is fixedly connected on the top of circular annular form U-shaped steel structure and symmetrical with the position of lower ring seal plate, in circular annular form U-shaped steel
Compressible filler is installed in the inner cavity of structure, curved support is successively installed on the inside of the open end of circular annular form U-shaped steel structure
Plate forms arch brace plate；D. compressible material, compressible material are filled between circular annular form U-shaped steel structure and side water barrier
Water barrier is installed on top, and upper water barrier and side water barrier are welded to connect；E. to the prototype annular U type steel knot inside pit shaft
Structure and ring flange position are welded to connect；F. by normal procedure pour can more than compression apparatus upper inner layer well wall until pouring completion.
A kind of waterproof well wall retractable device applies the construction technology in built composite well wall of vertical shaft, and construction procedure is as follows:
A. position and the cutting of compressible devices will be installed by demarcating in inner layer well wall, and microlith coagulation is poured at cutting
Soil is levelling；B. the assembly of the U-shaped steel structure segmental arc being welded and lower ring seal plate is transferred, and assembles and forms circular annular form U
Formed steel construction installs compressible filler, the opening of circular annular form U-shaped steel structure in the inner cavity of circular annular form U-shaped steel structure
Successively installation curved support plate forms arch brace plate for end inside；C. compressible material can be filled between compression apparatus and outer shaft wall
Material；D. toward can compression apparatus top fill pea gravel concreten, can compression apparatus circular annular form U-shaped steel structure open end above
One of welding upper ring seal plate；E. between upper ring seal plate and inner layer well wall, between lower ring seal plate and inner layer well wall
It is fixedly connected after filling waterproof layer by anchor pole.
Compared with prior art, a kind of waterproof well wall retractable device of the invention and its construction technology, due to can compression apparatus master
It to be made of circular annular form U-shaped steel structure, arch brace plate and compressible filler, in the U-shaped structure of circular annular form U-shaped steel structure
It makes with upper and lower two connected compression faces, in addition the compressible filler of its inside installation, makes the compression ratio of compressible devices
It greatly improves, can effectively limit the growth of inner layer well wall axial stress, prevent shaft rupture；And in circular rings
The compressible material filled between shape U-shaped steel structure and outer shaft wall ensure that can compression apparatus deformation space, improve compression
The reliability of space utilization rate and compressible devices；In addition, the setting of seal plate and various water barriers, waterproof layer, is improved
The water permeability resistance energy of inner layer well wall, improves leakproofness；Meanwhile structure is simple, from heavy and light, so easy for construction, engineering
Cost and engineering construction difficulty all reduce, and have wide applicability.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is that the present invention is applied in the structural schematic diagram for creating composite well wall of vertical shaft.
Fig. 2 is the transverse sectional view of Fig. 1.
Fig. 3 is the structural schematic diagram of the invention applied in built composite well wall of vertical shaft.
Fig. 4 is the transverse sectional view of Fig. 2.
In figure, 1, outer shaft wall, 2, side water barrier, 3, compressible material, 4, ring flange, 5, U-shaped steel structure segmental arc, 6, under
Inner layer well wall, 7, lower ring seal plate, 8, compressible filler, 9, curved support plate, 10, upper inner layer well wall, 11, upper annular stops
Water plate, 12, upper water barrier, 13, waterproof layer, 14, anchor pole.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, belongs to protection scope of the present invention.
One of Fig. 1 to Fig. 4 waterproof well wall retractable device, is mounted on connecing for the inner layer well wall of the composite concrete borehole wall
At seam, it is described can compression apparatus include circular annular form U-shaped steel structure, arch brace plate and compressible filler 8, this is compressible to fill out
Fill object 8 be compressible backing material or hollow structure, wherein compressible backing material can be timber, cystosepiment or
One of rubber is a variety of, and hollow structure can be the I-shape construction made of timber or steel or trench structure or
T-steel structure or box-structure also or the composite structure of the above structure etc. other have the structure being internally hollow, circular rings
U-shaped steel structure segmental arc 5 is end to end constitutes by several for shape U-shaped steel structure, and arch brace plate is also by several curved support plates 9
End to end composition, arch brace plate are fixedly connected on the inside of the open end of circular annular form U-shaped steel structure, circular annular form U-shaped steel
Compressible filler 8 is loaded in the cavity formed between structure and arch brace plate.Ground settlement is to inner layer well wall bring axis
It is acted in circular annular form U-shaped steel structure and arch brace plate first to pressure, is then transferred to compressible filler 8, it is round
Annular U type steel construction encloses the cavity constructions itself being set as with arch brace plate, and to compare existing steel compressibility good, adds
The good axial deformation ability of compressible filler 9, can more efficiently offset axial compressive force, can effectively limit inner layer well wall
The growth of axial stress, prevents shaft rupture.
Referring to 1 and Fig. 2, waterproof well wall retractable device of the invention applies the construction technology in newly-built composite well wall of vertical shaft,
Steps are as follows:
A. when inner layer well wall is poured into the design height of side water barrier 2, side water barrier 2 is transferred, the method being welded is transferred
The assembly of blue disk 4 and lower ring seal plate 7, wherein lower ring seal plate 7 is fixedly connected on the interior empty face of ring flange 4 and vertical
Downwards, it is welded to connect side water proof version 2 and flanged plate 4, while side water barrier 2 is close to outer shaft wall 1 and constructs；Side water barrier 2 can be with
Steel plate or polyethylene panel are selected, and the thickness of usually steel plate is not more than 10mm；
B. after formwork erection by ring flange 4 stay the pouring hole set pour can below compression apparatus the high lower inner layer well wall of section one kind
Waterproof well wall retractable device applies the construction technology 6 in built composite well wall of vertical shaft；
C. the assembly of prefabricated U-shaped steel structure segmental arc 5 and upper ring seal plate 11 is transferred, and assembles and forms circular rings
Shape U-shaped steel structure, upper ring seal plate 11 be fixedly connected on the top of circular annular form U-shaped steel structure and with lower ring seal plate 7
Position it is symmetrical, compressible filler 8 is installed in the inner cavity of circular annular form U-shaped steel structure, in circular annular form U-shaped steel structure
Open end on the inside of successively installation curved support plate 9 formed arch brace plate；
D. compressible material 3,3 top of compressible material peace are filled between circular annular form U-shaped steel structure and side water barrier 2
Water barrier 12 is loaded onto, upper water barrier 12 is closely connect with side water barrier 2, such as is welded；Upper water barrier 12 is usually to be coated with waterproof
The thickness of material is not more than the steel plate of 10mm；In general, can by extended length of the side water barrier 2 on outer shaft wall 1, make side every
Restriction of the both ends of water layer 2 beyond ring flange 4 and upper water barrier 12, can increase the percolation path of underground water in this way；
E. to the prototype annular U type steel construction 5 and 4 position of ring flange welded connecting inside pit shaft.
F. by normal procedure pour can more than compression apparatus upper inner layer well wall 10 until pouring completion.
Referring to 3 and Fig. 4, waterproof well wall retractable device of the invention applies the construction technology in built composite well wall of vertical shaft,
Steps are as follows:
A. position and the cutting of compressible devices will be installed by demarcating in inner layer well wall, and microlith coagulation is poured at cutting
Soil is levelling；
B. the assembly of the U-shaped steel structure segmental arc 5 being welded and lower ring seal plate 7 is transferred, and assembles and forms circular rings
Shape U-shaped steel structure installs compressible filler 8 in the inner cavity of circular annular form U-shaped steel structure, circular annular form U-shaped steel structure
Successively installation curved support plate 9 forms arch brace plate on the inside of open end；
C. compressible material 3 can be filled between compression apparatus and outer shaft wall 1；
D. toward can compression apparatus top fill pea gravel concreten, can compression apparatus circular annular form U-shaped steel structure open end
One of connection upper ring seal plate 11 above portion；
E. waterproof material is filled between upper ring seal plate 11 and inner layer well wall, between lower ring seal plate 9 and inner layer well wall
It is fixedly connected after the bed of material 13 by anchor pole 14.
In the construction technology of above-mentioned built composite well wall of vertical shaft, upper ring seal plate 11 and lower ring seal plate 7 are in pit shaft
Borehole wall arrangement is close in inside, enhances the water blockoff path of device, improves the leakproofness of device.
The above-mentioned upper ring seal plate 11 and lower ring applied in the construction technology of newly-built and built composite well wall of vertical shaft
Shape seal plate 7 can be made of steel plate.
The compressible material 3 selected in construction technology of the present invention is not compressed when pouring concrete above compressible devices,
When compressible devices operating room, compression ratio is up to 85% or more, such as cystosepiment or other hollow materials or structure, in circular rings
The compressible material 3 filled between shape U-shaped steel structure and outer shaft wall 1 ensure that can compression apparatus deformation space, improving can
The reliability of compression set.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is all according to
According to technical spirit of the invention, any simple modification and same variation are made to above embodiments, each fall within guarantor of the invention
Within the scope of shield.
Claims (10)
1. a kind of waterproof well wall retractable device, is mounted on the inner layer well wall of the composite concrete borehole wall, it is characterized in that: described can
Compression apparatus includes circular annular form U-shaped steel structure, arch brace plate and compressible filler (8), if circular annular form U-shaped steel structure by
Dry U-shaped steel structure segmental arc (5) end to end composition, arch brace plate is also by several end to end group of curved support plates (9)
At arch brace plate is fixedly connected on the inside of the open end of circular annular form U-shaped steel structure, circular annular form U-shaped steel structure and annulus
Compressible filler (8) is loaded in the cavity formed between support plate.
2. a kind of waterproof well wall retractable device according to claim 1, it is characterized in that: the compressible filler (8) is
Compressible backing material or hollow structure.
3. a kind of waterproof well wall retractable device according to claim 2, it is characterized in that: the compressible backing material is
Timber, cystosepiment or rubber.
4. a kind of waterproof well wall retractable device according to claim 2, it is characterized in that: the hollow structure be by timber or
The composite structure of I-shaped or groove profile or T-steel or box-structure or the above structure made of person's steel.
5. a kind of waterproof well wall retractable device as described in claim 1 applies the construction technology in newly-built composite well wall of vertical shaft, apply
Steps are as follows for work:
A. it when inner layer well wall is poured into the design height of side water barrier (2), transfers side water barrier (2), transfers the method being welded
Blue disk (4) and lower ring seal plate (7) assembly, and it is welded to connect side water barrier (2) and ring flange (4)；
B. after formwork erection by ring flange (4) stay the pouring hole set pour can compression apparatus transfer section lower inner layer well wall (6)；
C. the assembly of the U-shaped steel structure segmental arc (5) and upper ring seal plate (11) that are welded is transferred, and assembles and forms circular rings
Shape U-shaped steel structure, upper ring seal plate (11) be fixedly connected on the top of circular annular form U-shaped steel structure and with lower ring seal plate
(7) position is symmetrical, installs in the inner cavity of circular annular form U-shaped steel structure compressible filler (8), U-shaped in circular annular form
Successively installation curved support plate (9) forms arch brace plate on the inside of the open end of steel construction；
D. compressible material (3) are filled between circular annular form U-shaped steel structure and side water barrier (2), compressible material (3) top
It installs water barrier (12), upper water barrier (12) and side water barrier (2) are welded to connect, and upper water barrier and U-shaped steel structure segmental arc are welded
It connects in succession；
E. to the circular annular form U-shaped steel structure and ring flange (4) position welded connecting inside pit shaft；
F. by normal procedure pour can more than compression apparatus upper inner layer well wall (10) until pouring completion.
6. a kind of waterproof well wall retractable device according to claim 5 applies the construction work in newly-built composite well wall of vertical shaft
Skill, it is characterized in that: the side water barrier (2) is steel plate or polyethylene panel；Upper water barrier (12) is coated with waterproof material
Steel plate.
7. a kind of waterproof well wall retractable device according to claim 5 or 6 applies the construction in newly-built composite well wall of vertical shaft
Technique, it is characterized in that: the quantity of the upper ring seal plate (11) and lower ring seal plate (7) is one or multi-channel.
8. a kind of waterproof well wall retractable device as described in claim 1 applies the construction technology in built composite well wall of vertical shaft, apply
Steps are as follows for work:
A. inner layer well wall demarcate will install can compression apparatus position and cutting, pour pea gravel concreten at cutting and look for
It is flat；
B. the assembly of the U-shaped steel structure segmental arc (5) being welded and lower ring seal plate (7) is transferred, and assembles and forms circular rings
Shape U-shaped steel structure is installed compressible filler (8) in the inner cavity of circular annular form U-shaped steel structure, circular annular form U-shaped steel structure
Open end on the inside of successively installation curved support plate (9) formed arch brace plate；
C. compressible material (3) can be filled between compression apparatus and outer shaft wall (1)；
D. toward can compression apparatus top fill pea gravel concreten, can compression apparatus circular annular form U-shaped steel structure open end on
Side's welding is together upper ring seal plate (11)；
E. waterproof material is filled between upper ring seal plate (11) and inner layer well wall, between lower ring seal plate (7) and inner layer well wall
The bed of material (13) is fixedly connected by anchor pole (14) afterwards.
9. a kind of waterproof well wall retractable device according to claim 8 applies the construction work in built composite well wall of vertical shaft
Skill, it is characterized in that: the upper ring seal plate (11) and the setting of lower ring seal plate (7) are inside pit shaft at the borehole wall.
10. a kind of waterproof well wall retractable device according to claim 8 or claim 9 applies the construction in built composite well wall of vertical shaft
Technique, it is characterized in that: the compressible material (3) is cystosepiment or hollow material；Upper ring seal plate (11), lower annular are stopped
Water plate (7) and curved support plate (9) are all made using steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710034787.7A CN106894820B (en) | 2017-01-17 | 2017-01-17 | A kind of waterproof well wall retractable device and its construction technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710034787.7A CN106894820B (en) | 2017-01-17 | 2017-01-17 | A kind of waterproof well wall retractable device and its construction technology |
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| Publication Number | Publication Date |
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| CN106894820A CN106894820A (en) | 2017-06-27 |
| CN106894820B true CN106894820B (en) | 2019-02-22 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829745B (en) * | 2017-11-01 | 2023-09-29 | 中国恩菲工程技术有限公司 | Water intercepting device for vertical shaft |
| CN109695452B (en) * | 2019-01-07 | 2021-04-27 | 中国矿业大学 | Single-layer shaft capable of axially yielding and construction method thereof |
| CN110847444A (en) * | 2019-10-28 | 2020-02-28 | 昆明理工大学 | Construction method for collaborative settlement of ring beam, constructional column and rammed earth wall |
| CN115012946B (en) * | 2022-06-20 | 2023-04-11 | 中国矿业大学 | Construction method for preventing and treating well wall breakage through graded excavation and filling and waterproof structure |
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| CN2367768Y (en) * | 1999-05-08 | 2000-03-08 | 中国矿业大学 | Curved arc plate type apparatus for making well-wall contractable |
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| 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 |
| CN204492825U (en) * | 2014-12-12 | 2015-07-22 | 安徽恒源煤电股份有限公司 | A kind of contractible joint of freezing wells with high strength RC |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB810805A (en) * | 1954-07-26 | 1959-03-25 | Adjustable Anchor Corp | Fixture anchor having three dimensional adjustments |
| CN2367768Y (en) * | 1999-05-08 | 2000-03-08 | 中国矿业大学 | Curved arc plate type apparatus for making well-wall contractable |
| CN1916361A (en) * | 2006-08-23 | 2007-02-21 | 淮南矿业(集团)有限责任公司 | Yielding adaptor of well wall in frozen well, and construction method |
| CN101906973A (en) * | 2010-07-23 | 2010-12-08 | 中国矿业大学 | Composite well wall with compressible interlayer and construction method thereof |
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| CN103133005A (en) * | 2013-02-04 | 2013-06-05 | 中国矿业大学 | Double-steel-plate locally-confined concrete shaft lining |
| 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 |
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| CN106894820A (en) | 2017-06-27 |
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