CN105587320B - Rich water sand-pebble layer abnormal shape deep shaft structural system and its construction method - Google Patents
Rich water sand-pebble layer abnormal shape deep shaft structural system and its construction method Download PDFInfo
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- CN105587320B CN105587320B CN201610062227.8A CN201610062227A CN105587320B CN 105587320 B CN105587320 B CN 105587320B CN 201610062227 A CN201610062227 A CN 201610062227A CN 105587320 B CN105587320 B CN 105587320B
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- 230000002159 abnormal effect Effects 0.000 title claims abstract description 34
- 238000010276 construction Methods 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 230000007704 transition Effects 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 91
- 239000010959 steel Substances 0.000 claims description 91
- 238000000034 method Methods 0.000 claims description 10
- 238000005553 drilling Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 9
- 239000011083 cement mortar Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 6
- 238000009412 basement excavation Methods 0.000 claims description 4
- 239000004567 concrete Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 239000003673 groundwater Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims 1
- 230000009466 transformation Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000005755 formation reaction Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 230000005641 tunneling Effects 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
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- 239000004744 fabric Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D8/00—Shafts not provided for in groups E21D1/00 - E21D7/00
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D1/00—Sinking shafts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D5/00—Lining shafts; Linings therefor
- E21D5/04—Lining shafts; Linings therefor with brick, concrete, stone, or similar building materials
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D5/00—Lining shafts; Linings therefor
- E21D5/06—Lining shafts; Linings therefor with iron or steel
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- 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
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Abstract
The present invention relates to rich water sand-pebble layer abnormal shape deep shaft structural system and its construction methods.It is influenced by built subway line and surrounding enviroment, conventional rectangle or Circular Shaft sectional form, may be limited by site condition and surrounding enviroment and not perform space.The present invention includes special-shaped deep shaft structure, includes from top to bottom triangular section shaft structure, digs section abnormal shape shaft structure and quadrangular section shaft structure；Triangular section shaft structure horizontal cross-section is triangular in shape, and horizontal cross-section is identical from top to bottom；Quadrangular section shaft structure horizontal cross-section is in quadrangle, and horizontal cross-section is identical from top to bottom；Triangular section shaft structure is extended to quadrangular section shaft structure by digging the transition of section abnormal shape shaft structure.The present invention has the characteristics that floor space is small, inner space is big, structural system transformation is flexible and adapts to all kinds of environmental requirements, meets up-small and down-big requirement, while adapting to surrounding enviroment.
Description
Technical field
The invention belongs to Tunnel Engineering technical fields, and in particular to a kind of rich water sand-pebble layer abnormal shape deep shaft structure
System and its construction method.
Background technology
For the railway traffic engineering of current cities in China, with the continuous encryption of subway gauze, follow-up subway line
When road is built, influenced by built subway line and surrounding enviroment, in line alignment and paving mode, spatial relationship and structural type
Formula and construction method and the requirement of engineering measure etc. are stringenter.Conventional rectangle or Circular Shaft sectional form can
It can be limited by site condition and surrounding enviroment and not perform space.
Special-shaped deep shaft has flexible and changeable, adaptable, safe and reliable with the construction method that Tunneling by mining method is combined
The features such as.Up-small and down-big cross-sectional configuration pattern is the essential characteristic of special-shaped deep shaft, and vertical shaft digs a section steel tube shed stratum pre-add
Gu measure digs the structural stabilities measures such as section shaft wall slope requirement and grid steel frame solid matter, it is to ensure that special-shaped deep shaft
The key of successful implementation.
Invention content
The object of the present invention is to provide a kind of rich water sand-pebble layer abnormal shape deep shaft structural system and its construction method,
A section steel tube shed stratum pre-reinforcement measure is digged by vertical shaft under complex environment, digs section requirement of shaft wall slope and a grid steel frame
The structural stabilities measure such as solid matter, and interim type steel support inside vertical shaft is combined, the transformation for digging segment structure system is realized, it is real
The special shaft structure pattern that existing top section is small, lower section is big.
The technical solution adopted in the present invention is：
Rich water sand-pebble layer abnormal shape deep shaft structural system, including special-shaped deep shaft structure, it is characterised in that：
Special-shaped deep shaft structure includes from top to bottom triangular section shaft structure, digs section abnormal shape shaft structure and four sides
Shape section shaft structure；
Triangular section shaft structure horizontal cross-section is triangular in shape, and horizontal cross-section is identical from top to bottom；Quadrangular section is perpendicular
Well construction horizontal cross-section is in quadrangle, and horizontal cross-section is identical from top to bottom；
Triangular section shaft structure is extended to quadrangular section vertical shaft knot by digging the transition of section abnormal shape shaft structure
Structure.
It digs section abnormal shape shaft structure to dig from special-shaped deep shaft structure side, there is vertical shaft to dig inclined-plane, vertical shaft digs
The slope on inclined-plane is no more than 1: 0.5.
It digs section abnormal shape shaft structure side and is provided with steel tube shed, oblique lower section is set, and setting is two rows of altogether up and down, is in plum blossom
Type is arranged.
The interim type steel support of multiple tracks horizontal direction arrangement is provided in special-shaped deep shaft structure.
The construction method of rich water sand-pebble layer abnormal shape deep shaft structural system, it is characterised in that：
Include the following steps：
Step 1：Carry out dewatering construction, it is ensured that level of ground water 1m below excavation of foundation pit face, according to upside-down well wall approach principle
The special-shaped deep shaft structure of construction, implements triangular section shaft structure at first, performs internal interim type steel support in time, special-shaped deep
Shaft structure surrounding performs grid steel frame in time, welds guide pipe on last Pin grid steel frame before digging, guide pipe is adopted
With 133 steel pipes of Φ, length 0.6m pushes up onto shaft structure face, circular arc is curved with the fixed steel bars of diameter 16mm, by guide pipe
It is weldingly fixed on grid steel frame；
Step 2：Will be integrated poured comprising the grid steel frame progress including guide pipe, it performs into and is oriented to wall；
Step 3：Drilling machine job platform height is determined according to steel tube shed size and design hole position height, and brill is filled with the earthwork
Machine operation platform carries out daguanpeng construction using down-the-hole drill, and steel tube shed angle with horizontal plane is 30 °, and oblique lower section is set, and is inserted
Enter and is oriented to guide pipe pre-buried in wall；Pipe canopy often saves long 2m, is constructed using pipe-following drilling method, and pipe canopy overall length 12m is latent more than stratum
In the plane of fracture, after the completion of steel tube shed performs, to pipe canopy internal pressure water filling cement mortar, component entirety bending stiffness is improved；
Step 4：Under the advance support effect of steel tube shed, proceeds by and dig the construction of section abnormal shape shaft structure, it is stringent to control
System digs side slope and is no more than 1:0.5, while it is 0.5m that stringent control, which digs section vertical spacing of borehole wall grid steel frame, just starts to expand
When digging, upper and lower three Pin grid steel frame solid matters processing；
Step 5：It digs after the completion of section abnormal shape shaft structure performs, carries out quadrangular section shaft structure construction；
Step 6：According to design requirement, special-shaped deep shaft is excavated to designated depth, vertical shaft back cover is completed and constructs, and
Vertical shaft back cover quadrangle performs plain concrete.
The present invention has the following advantages：
The interim type steel support and vertical shaft that the present invention is arranged in the steel tube shed and vertical shaft that shaft wall digs section setting
The grid steel frame etc. for the closure cyclization being arranged in the borehole wall, steel, cement mortar and the steel tube shed being related to set machinery used
Equipment etc. is conventional material（Equipment）, corresponding size is general type, manufacture easy to process；And steel tube shed length can basis
Stratum source-sink activity is adjusted, and steel tube shed spacing can dig position, formation characteristics and load situation with quantity according to vertical shaft
It is adjusted, steel tube shed rigidity can be determined according to the cement mortar grade of inside filling with steel pipe stiffness by itself information summary, be erected
Well digs side slope and can be controlled 1 according to stratum stable case:0.3~1:0.5 hereinafter, grid steel frame and interim type steel support cloth
Setting can be adjusted flexibly according to vertical shaft base pit stability result of calculation.Pass through the advanced stratum pre-reinforcement measure of steel tube shed, vertical shaft well
Wall digs the setting of the control of slope over 10 and the encryption and internal interim type steel support of shaft wall grid steel frame, Ke Yishi
The safety for now digging segment structure reduces potential insecurity, reaches that can to meet floor space small, and can meet internal sky
Between big shaft structure requirement, the rigors and ground routine rectangle or circle of surrounding enviroment protection can be met
Vertical shaft takes up a large area the adverse effect to surrounding enviroment.With higher economic benefit and social benefit, handed in city rail
Have wide practical use in the engineerings such as logical, railway, highway.
Description of the drawings
Fig. 1 is special-shaped deep shaft structure section figure.
Fig. 2 is special-shaped deep shaft structural plan figure.
Fig. 3 is that special-shaped deep shaft digs a section pipe canopy detail structure figure（1）.
Fig. 4 is that special-shaped deep shaft digs a section pipe canopy detail structure figure（2）.
In figure, 1- abnormal shape deep shaft structures, 2- triangular section shaft structures, 3- digs section abnormal shape shaft structure, 4- tetra-
Side shape section shaft structure, the interim type steel supports of 5-, 6- steel tube sheds, 7- are oriented to wall, 8- guide pipes, 9- grid steel frames, 10- vertical shafts
Dig inclined-plane, 11- vertical shaft back covers, 12- element concretes, 13- fixed steel bars.
Specific implementation mode
The present invention will be described in detail With reference to embodiment.
The present invention provides a kind of novel deep shaft construction concepts, enrich existing Construction of Silo technique, have widened depth
Vertical shaft mentality of designing.The design concept being combined with Tunneling by mining method using special-shaped deep shaft can meet specific construction condition
To the rigors of engineering proposal, for ensure to realize engineering proposal rationally, engineering risk and the completion time of project is controllable, construction quality with
Securely and reliably provide completely new thinking.
Rich water sand-pebble layer abnormal shape deep shaft structural system of the present invention, including special-shaped deep shaft structure 1, it is special-shaped
Deep shaft structure 1 includes from top to bottom triangular section shaft structure 2, it is perpendicular to dig section abnormal shape shaft structure 3 and quadrangular section
Well construction 4.2 horizontal cross-section of triangular section shaft structure is triangular in shape, and horizontal cross-section is identical from top to bottom；Quadrangular section is perpendicular
4 horizontal cross-section of well construction is in quadrangle, and horizontal cross-section is identical from top to bottom.Triangular section shaft structure 2 is by digging Duan Yi
The transition of type shaft structure 3 is extended to quadrangular section shaft structure 4.Special-shaped deep shaft structure 1 is using conventional inverted side-wall
Method is constructed, and the stability control that middle section digs section abnormal shape shaft structure 3 is the key point of entire engineering.
It digs section abnormal shape shaft structure 3 to dig from special-shaped 1 side of deep shaft structure, there is vertical shaft to dig inclined-plane 10, vertical shaft
The slope for digging inclined-plane 10 is usually no more than 1: 0.5.It digs 3 side of section abnormal shape shaft structure and is provided with steel tube shed 6, obliquely
Side is set, and setting is two rows of altogether up and down, is arranged in blossom type.Being horizontally disposed in work progress, in special-shaped deep shaft structure 1 has multiple tracks
The interim type steel support of horizontal direction 5.
Before vertical shaft digs, by the stratum for digging 9 solid matter of grid steel frame and the double steel tube shed 6 of blossom type arrangement above section
Pre-reinforcement measure, and its bending stiffness is improved in 6 internal pressure cementing mortar of steel tube shed, along with interim type steel support inside vertical shaft
5 common supporting effect, to ensure the monolithic stability of shaft structure.
Before steel tube shed 6 performs, direction and angle requirement is set to ensure that steel tube shed is set, need to implement leading for pipe canopy in advance
To wall 7 and guide pipe 8, wherein steel tube shed 6 uses diameter 108mm, and wall thickness 6mm steel floral tubes, setting direction angle with horizontal plane is
30 °, oblique lower section is set, and pipe canopy often saves long 2m, is constructed using pipe-following drilling method, and pipe canopy is always about 12m, while in steel tube shed 6
The cement mortar of pressure injection must have good mobility and workability, it is ensured that filling is closely knit.The intensity and rigidity for being oriented to wall 7 need
It disclosure satisfy that the requirement that steel tube shed 6 is set, the beam that sectional dimension is 0.8 × 2.0m can be generally made, using C35 coagulations
Soil.Guide pipe 8 uses 133 steel pipes of Φ, length 0.6m to push up onto shaft structure face, circular arc is curved with the reinforcing bar of diameter 16mm,
Guide pipe 8 is weldingly fixed on grid steel frame 9.
The length of steel tube shed 6 can be adjusted with angle is set according to stratum source-sink activity, but at least should be more than rupture
Face 2m, the slope that vertical shaft digs inclined-plane 10 are no more than 1:0.5, it can be controlled in 1:0.3 or 1:It, specifically can be according to vertical shaft within 0.5
Internal space requirements are adjusted, the main shaft support measure such as grid steel frame 9 and interim type steel support 5, also can be according to stratum
Situation and base pit stability result of calculation flexible arrangement.
The construction method of above-mentioned rich water sand-pebble layer abnormal shape deep shaft structural system, includes the following steps：
Step 1：Carry out dewatering construction, it is ensured that level of ground water 1m below excavation of foundation pit face, according to upside-down well wall approach principle
The special-shaped deep shaft structure 1 of construction, implements triangular section shaft structure 2, performs inner horizontal in time to interim shaped steel branch at first
Support 5, special-shaped 1 surrounding of deep shaft structure performs grid steel frame 9, and guide pipe is welded on last Pin grid steel frame 9 before digging
8, guide pipe 8 uses 133 steel pipes of Φ, length 0.6m to push up onto shaft structure face, curved with the fixed steel bars 13 of diameter 16mm
Guide pipe 8 is weldingly fixed on grid steel frame 9 by circular arc；
Step 2：To be carried out comprising the grid steel frame 9 including guide pipe 8 it is integrated poured, perform into be oriented to wall 7；
Step 3：Drilling machine job platform height is determined according to 6 size of steel tube shed and design hole position height, and brill is filled with the earthwork
Machine operation platform carries out steel tube shed 6 using down-the-hole drill and constructs, and steel tube shed angle with horizontal plane is 30 °, and oblique lower section is set,
It is inserted into the guide pipe 8 being oriented in wall 7；Pipe canopy often saves long 2m, is constructed using pipe-following drilling method, and pipe canopy overall length 12m is latent more than stratum
In the plane of fracture, after the completion of steel tube shed 6 performs, to pipe canopy internal pressure water filling cement mortar；
Step 4：Under the advance support effect of steel tube shed 6, proceeds by and dig the construction of section abnormal shape shaft structure 3, strictly
Control digs side slope 10 and is no more than 1:0.5, while it is 0.5m that stringent control, which digs 9 vertical spacing of section borehole wall grid steel frame, just
When starting to dig, upper and lower three Pin grid steel frames, 9 solid matter processing；
Step 5：It digs after the completion of section abnormal shape shaft structure 3 performs, carries out quadrangular section shaft structure 4 and construct；
Step 6：According to design requirement, special-shaped deep shaft 1 is excavated to designated depth, vertical shaft back cover 11 is completed and constructs, and
Plain concrete 12 is performed in vertical shaft back cover for 11 4 jiaos.
The arbitrary cross-section shaft structure and its construction method of various requirement can be adapted to completely by theoretically finding out, existing
Theoretical level and construction technology under the conditions of, still have sizable difficulty, because shaft excavation is to surrounding formations in Practical Project
Disturbance be inevitable to a certain extent, and foundation pit protection require other than oneself factor, it is also necessary in view of week
The different of surrounding environment require, especially close on existing subway station and tunnel, underground commerce synthesis and hospital, school with
In the case that object is laid special stress on protecting in laboratory etc., current special-shaped deep shaft structure design and construction, still need to according to " strong supporting,
Short drilling depth, few disturbance, with digging with support, first support and dig afterwards " basic principle progress.
Top section that " the special-shaped deep shaft structure " of the present invention refers mainly to dig the formation of section abnormal shape shaft structure 3 is small, under
The big special shaft structure pattern in portion section, disclosure satisfy that floor space is small, surrounding enviroment are influenced with controllable basic demand, keeps away
Exempt from conventional circular or rectangular section vertical shaft take up a large area, the deficiency of bad adaptability.Wherein, top half triangular-section vertical shaft
2 can determine according to ground surface environment, and lower half portion quadrangular section vertical shaft 4 can be adjusted according to internal space requirements, because greatly
Pipe canopy length can according to stratum source-sink activity range respective change, steel tube shed spacing and quantity can be digged according to vertical shaft position,
Formation characteristics is adjusted with load situation, and steel tube shed rigidity can be according to the cement mortar grade and steel pipe stiffness by itself feelings of inside filling
Condition synthesis determines that vertical shaft digs side slope can be according to stratum stable case 1:0.3~1:0.5 or less range adjusts, grid steel
Frame can be adjusted flexibly with interim type steel support arrangement according to vertical shaft base pit stability result of calculation.Pass through the advanced stratum of steel tube shed
Pre-reinforcement measure, shaft wall dig the control of slope over 10 and the encryption of shaft wall grid steel frame and internal interim shaped steel
The safety for digging segment structure may be implemented in the setting of support, reduces potential insecurity, and floor space can be met by reaching
It is small, and the big shaft structure requirement in inner space can be met, the rigors and ground of surrounding enviroment protection can be met
Face conventional rectangular or Circular Shaft take up a large area the adverse effect to surrounding enviroment, may be implemented when city underground gauze is first
Tool scale, urban rail corridor have already taken up below major urban arterial highway in the case of main space, and newly-built underground engineering remains to adopt
With the purpose of vertical shaft+Tunneling by mining method this conventional means implementation.With higher economic benefit and social benefit, in city rail
Have wide practical use in the engineerings such as road traffic, railway, highway.
Present disclosure is not limited to cited by embodiment, and those of ordinary skill in the art are by reading description of the invention
And to any equivalent transformation that technical solution of the present invention is taken, it is that claim of the invention is covered.
Claims (1)
1. the construction method of rich water sand-pebble layer abnormal shape deep shaft structural system, it is characterised in that：
The rich water sand-pebble layer abnormal shape deep shaft structural system includes special-shaped deep shaft structure（1）, special-shaped deep shaft structure
（1）Include triangular section shaft structure from top to bottom（2）, dig section abnormal shape shaft structure（3）With quadrangular section vertical shaft knot
Structure（4）；
Triangular section shaft structure（2）Horizontal cross-section is triangular in shape, and horizontal cross-section is identical from top to bottom；Quadrangular section vertical shaft
Structure（4）Horizontal cross-section is in quadrangle, and horizontal cross-section is identical from top to bottom；
Triangular section shaft structure（2）By digging section abnormal shape shaft structure（3）Transition, be extended to quadrangular section vertical shaft
Structure（4）；
Dig section abnormal shape shaft structure（3）From special-shaped deep shaft structure（1）Side digs, and there is vertical shaft to dig inclined-plane（10）, erect
Well digs inclined-plane（10）Slope be no more than 1: 0.5；
Dig section abnormal shape shaft structure（3）Side is provided with steel tube shed（6）, oblique lower section sets, two rows is arranged altogether up and down, are in plum
Flower pattern is arranged；
The construction method includes the following steps：
Step 1：Carry out dewatering construction, it is ensured that level of ground water 1m below excavation of foundation pit face constructs according to upside-down well wall approach principle
Special-shaped deep shaft structure（1）, implement triangular section shaft structure at first（2）, internal interim type steel support is performed in time（5）,
Special-shaped deep shaft structure（1）Surrounding performs grid steel frame in time（9）, last Pin grid steel frame before digging（9）Upper welding
Guide pipe（8）, guide pipe（8）Using 133 steel pipes of Φ, length 0.6m is pushed up onto shaft structure face, with the fixation of diameter 16mm
Reinforcing bar（13）Circular arc is curved, by guide pipe（8）It is weldingly fixed on grid steel frame（9）On；
Step 2：It will include guide pipe（8）Grid steel frame inside（9）Carry out it is integrated poured, perform into be oriented to wall（7）；
Step 3：According to steel tube shed（6）Size and design hole position height determine drilling machine job platform height, and drilling machine is filled with the earthwork
Job platform carries out steel tube shed using down-the-hole drill（6）Construction, steel tube shed angle with horizontal plane are 30 °, and oblique lower section is set,
It is inserted into and is oriented to wall（7）In pre-buried guide pipe（8）；Pipe canopy often saves long 2m, is constructed using pipe-following drilling method, and pipe canopy overall length 12m surpasses
Cross stratum source-sink activity, steel tube shed（6）After the completion of performing, to pipe canopy internal pressure water filling cement mortar, it is rigid to improve component entirety bending resistance
Degree；
Step 4：In steel tube shed（6）Advance support effect under, proceed by and dig section abnormal shape shaft structure（3）Construction, will expand
It digs side to extend to depth direction and horizontal direction, a line is extended to two sides, stringent control digs side slope（10）Do not surpass
Cross 1:0.5, while stringent control digs a section borehole wall grid steel frame（9）Vertical spacing is 0.5m, when just starting to dig, upper and lower three Pin
Grid steel frame（9）Solid matter processing；
Step 5：Dig section abnormal shape shaft structure（3）After the completion of performing, quadrangular section shaft structure is carried out（4）Construction；
Step 6：According to design requirement, by special-shaped deep shaft（1）It is excavated to designated depth, completes vertical shaft back cover（11）Construction, and
In vertical shaft back cover（11）Quadrangle performs plain concrete（12）.
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| CN106593450B (en) * | 2017-01-13 | 2018-09-28 | 沈阳建筑大学 | Deep layer tunnel rainwater becomes a mandarin silo system |
| CN107905817B (en) * | 2017-12-01 | 2023-06-23 | 中铁第一勘察设计院集团有限公司 | Pre-reinforcing system for ground working well advance pipe shed penetrating existing objects in shield region |
| CN108397197A (en) * | 2018-03-05 | 2018-08-14 | 中国水利水电第五工程局有限公司 | A kind of suppleing level super thick soil property country rock shaft excavation method |
| CN108643625B (en) * | 2018-05-28 | 2020-02-28 | 山东科技大学 | Urban vertical circulation type underground parking garage building structure and construction method thereof |
| CN110987335B (en) * | 2019-12-20 | 2021-10-15 | 防灾科技学院 | Method and device for determining position of potential fracture surface of two-stage reinforced soil structure |
| CN111456737B (en) * | 2020-04-13 | 2021-06-25 | 中国水利水电建设工程咨询渤海有限公司 | Shaft construction method for preventing collapse in construction period under unfavorable geological conditions |
| CN114183144B (en) * | 2021-11-04 | 2023-06-09 | 中铁隧道勘测设计院有限公司 | Construction method for special-shaped inverted well wall simultaneously built by vertical shaft and thrown-out air well |
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|---|---|---|---|---|
| CN203559904U (en) * | 2013-07-09 | 2014-04-23 | 北京城建设计发展集团股份有限公司 | Reinforced supporting structure for creating horsehead on reversal borehole wall shaft well side wall |
| CN203499692U (en) * | 2013-11-25 | 2014-03-26 | 中铁十八局集团有限公司 | Special-shaped shaft adopted for subway construction under pipeline conditions |
| CN204851266U (en) * | 2015-07-28 | 2015-12-09 | 中铁十八局集团有限公司 | Secretly dig shaft structure directly over station |
| CN205503131U (en) * | 2016-01-29 | 2016-08-24 | 中铁第一勘察设计院集团有限公司 | Dark shaft structure system of rich water sand cobble stratum abnormal shape |
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| CN105587320A (en) | 2016-05-18 |
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