CN108590662A - The construction method of high gradient slope metro station tunnel air shaft - Google Patents
The construction method of high gradient slope metro station tunnel air shaft Download PDFInfo
- Publication number
- CN108590662A CN108590662A CN201810435282.6A CN201810435282A CN108590662A CN 108590662 A CN108590662 A CN 108590662A CN 201810435282 A CN201810435282 A CN 201810435282A CN 108590662 A CN108590662 A CN 108590662A
- Authority
- CN
- China
- Prior art keywords
- air shaft
- hole
- excavated
- shaft
- high gradient
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D1/00—Sinking shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
Abstract
The present invention relates to a kind of construction methods of high gradient slope metro station tunnel air shaft, including：Opposite sides in the ascents and descents direction of air shaft to be excavated fixes vertical friction pile；Through-hole is vertically excavated within the scope of the well head of air shaft to be excavated, until the designed elevation position of air shaft to be excavated；Horizontal duct is excavated between existing tunnel and through-hole, through-hole is made to be connected with tunnel；And it from top to bottom excavates air shaft to be excavated and is fallen to horizontal duct to high position, quarrel soil is designed by through-hole and be transported to outside tunnel.The dregs excavated in this way directly falls to horizontal duct using through-hole, is transported away by horizontal duct and tunnel, need not be transported up the dregs of excavation, energy saving, improves construction efficiency, solves the problems, such as difficult inefficiency of slagging tap.
Description
Technical field
The present invention relates to the realm of building construction, espespecially a kind of construction party of high gradient slope metro station tunnel air shaft
Method.
Background technology
In metro station tunnel operation stage, the wind-force driven when doing piston motion to discharge locomotive in tunnel, with
And improve air quality in tunnel, tunnel arrangement air shaft AT STATION is needed, one end connection underground space of air shaft is (mostly
The horizontal duct being connected with the main hole of station tunnel), the other end connection of air shaft is on the ground.Currently, vertical shaft construction mostly uses just
Well method, sequence of construction is generally tunneled from top to bottom and preliminary bracing of following up, after tunneling to attached horizontal channel, then under
And the upper progress borehole wall two lining construction.But there are some defects using the construction of positive well method：First, quarrel soil need to be promoted to well head by shaft bottom,
Increase energy consumption with well depth gradually to increase, the muck removal time is increasingly longer；Second is that special waste place need to be set, it is empty to construction
Between have certain requirement, construction infection range is big, when vertical shaft is located at the Active workings that high gradient slope etc. is narrow, muck removal is difficult,
The applicability of this method is had a greatly reduced quality；It is easily fallen third, carrying quarrel body during quarrel, threatens underground construction personnel safety；Fourth, driving
Speed is slower, and it is poor to bore quick-fried effect.
Invention content
It is an object of the invention to overcome the deficiencies of existing technologies, it is perpendicular to provide a kind of high gradient slope metro station tunnel ventilation
The construction method of well solves the problems, such as difficult inefficiency of slagging tap when excavating air shaft at high gradient slope in the prior art.
Realizing the technical solution of above-mentioned purpose is：
The present invention provides a kind of construction method of high gradient slope metro station tunnel air shaft, including：
Vertical friction pile is plugged in the opposite sides corresponding to different height of air shaft to be excavated；
Through-hole is vertically excavated in the range of the air shaft to be excavated, until the air shaft to be excavated
Designed elevation position；
Horizontal duct is excavated between existing tunnel and the through-hole, the through-hole is made to be connected with the tunnel；With
And
Air shaft to be excavated described in from top to bottom excavating is to designed elevation position, using the through-hole by the quarrel of excavation
Soil falls to the horizontal duct and is transported to outside the tunnel.
The advantageous effect of the construction method of high gradient slope metro station tunnel air shaft of the present invention：
The present invention by excavating through-hole within the scope of the well head of air shaft to be excavated, through-hole and existing tunnel it
Between excavate the horizontal duct of connection.The dregs excavated in this way directly falls to horizontal duct using through-hole, and can pass through horizontal wind
Road and tunnel transport away, without the dregs of excavation to be transported up, have saved the energy, have improved construction efficiency, solved
It has determined the problem of difficult inefficiency is slagged tap when excavating air shaft at high gradient slope.Friction pile plays the vertical work for reinforcing support
With the disturbance of side slope, the problem of landslide when for preventing excavation construction, reduces whole when reducing air shaft excavation
Body construction risk.
The construction method of high gradient slope metro station tunnel air shaft of the present invention further improvement lies in that, the through-hole
Bottom and the horizontal duct top be interconnected.
The construction method of high gradient slope metro station tunnel air shaft of the present invention further improvement lies in that, by up to
During the lower excavation air shaft, lining at the beginning of vertical shaft is from top to bottom set in the inner wall of the air shaft；
After the completion of the air shaft excavates, the inner surface served as a contrast at the beginning of the vertical shaft of the air shaft is from bottom to top constructed
Vertical shaft two serves as a contrast.
The construction method of high gradient slope metro station tunnel air shaft of the present invention further improvement lies in that, the vertical shaft
First lining bag includes bracing members and injection along the inner wall setting of the air shaft in the concrete of the inner wall.
The construction method of high gradient slope metro station tunnel air shaft of the present invention further improvement lies in that, excavate institute
It further includes the well head for measuring and positioning the air shaft to state before through-hole.
The construction method of high gradient slope metro station tunnel air shaft of the present invention further improvement lies in that, the through-hole
A diameter of 1m.
The construction method of high gradient slope metro station tunnel air shaft of the present invention further improvement lies in that, plug described
Friction pile includes：
Interval is inserted in the pile body of the opposite sides corresponding to different height of air shaft to be excavated；And
It is fixedly connected with beam in the top drawknot of the pile body.
Description of the drawings
Fig. 1 is the positive section after the through-hole of the construction method of high gradient slope metro station tunnel air shaft of the present invention excavates
Schematic diagram.
Fig. 2 is to prolong side slope after the through-hole of the construction method of high gradient slope metro station tunnel air shaft of the present invention excavates
The sectional schematic diagram in direction.
Fig. 3 be high gradient slope metro station tunnel air shaft of the present invention construction method horizontal duct excavation after just
Sectional schematic diagram.
Fig. 4 is prolonging after the horizontal duct of the construction method of high gradient slope metro station tunnel air shaft of the present invention excavates
The sectional schematic diagram in side slope direction.
Fig. 5 is in the air shaft digging process of the construction method of high gradient slope metro station tunnel air shaft of the present invention
Positive sectional schematic diagram.
Fig. 6 is in the air shaft digging process of the construction method of high gradient slope metro station tunnel air shaft of the present invention
The sectional schematic diagram for prolonging side slope direction.
Fig. 7 is that the vertical shaft two of the construction method of high gradient slope metro station tunnel air shaft of the present invention serves as a contrast in Bracing Process
Positive sectional schematic diagram.
Fig. 8 is that the vertical shaft two of the construction method of high gradient slope metro station tunnel air shaft of the present invention serves as a contrast in Bracing Process
The sectional schematic diagram for prolonging side slope direction.
Specific implementation mode
The invention will be further described in the following with reference to the drawings and specific embodiments.
Refering to fig. 1, it is shown that the through-hole of the construction method of high gradient slope metro station tunnel air shaft of the present invention excavates
Positive sectional schematic diagram afterwards.Fig. 2 is that the through-hole of the construction method of high gradient slope metro station tunnel air shaft of the present invention excavates
The sectional schematic diagram for prolonging side slope direction afterwards.Fig. 1 to Fig. 8, it is shown that each step schematic diagram of the invention.In conjunction with Fig. 1 to Fig. 8
Shown, the construction risk of subway ventilation vertical shaft built is higher generally in the side slope of Mountainous City.High gradient slope subway of the present invention
The construction method of station tunnel air shaft includes：It is inserted in the opposite sides corresponding to different height of air shaft to be excavated
If vertical friction pile 10；Through-hole 20 is vertically excavated in the range of the air shaft to be excavated, until described to be excavated
The designed elevation position of air shaft；Horizontal duct 40 is excavated between existing tunnel and the through-hole 20, makes the through-hole
20 are connected with the tunnel 30；And air shaft to be excavated described in from top to bottom excavating is utilized to designed elevation position
The quarrel soil of excavation is fallen to the horizontal duct and is transported to outside the tunnel 30 by the through-hole 20.The present invention is by waiting excavating
Air shaft well head within the scope of excavate through-hole, the horizontal duct of connection is excavated between through-hole and existing tunnel.In this way
The dregs of excavation directly falls to horizontal duct using through-hole, and can be transported away by horizontal duct and tunnel, from without
The dregs of excavation is transported up, the energy has been saved, improves construction efficiency, solves excavation air shaft at high gradient slope
When slag tap difficult inefficiency the problem of.
One better embodiment of the construction method as high gradient slope metro station tunnel air shaft of the present invention, in conjunction with
Shown in Fig. 1 to Fig. 8, the top of the bottom of the through-hole 20 and the horizontal duct 40 is interconnected, to the dregs meeting excavated
It is directly fallen under through-hole in horizontal duct 40, without blocking.
It further include the well head by measuring and positioning air shaft before excavating through-hole.By the well head for positioning air shaft
Position, to the convenient follow-up position for determining through-hole 20.The well head in air shaft 50 to be excavated can be arranged in through-hole 20
Through-hole 20 is arranged within the scope of the well head of air shaft 50 to be excavated in the present embodiment for any point in range
Circle centre position.Specifically, the center of circle within the scope of the well head in air shaft 50 to be excavated uses manually digging hole or impact drill certainly
The vertical through-hole 20 of upper and lower excavation, until the shaft bottom designed elevation position of air shaft 50.In the present embodiment, through-hole 20
Diameter about 1m.It specifically can be depending on practice of construction situation.When excavating air shaft using drilling and blasting method, through-hole 20 increases quick-fried
Broken free face, improves to demolition effect.
One better embodiment of the construction method of the air shaft as high gradient slope metro station tunnel of the present invention resists
The opposite sides in the different height of air shaft is arranged in sliding pile 10, plays the role of vertically reinforcing support, it is perpendicular to reduce ventilation
The disturbance of side slope, the problem of landslide when for preventing excavation construction, reduces integral construction risk when well excavates.
Plugging the friction pile 10 includes：Interval be inserted in air shaft to be excavated correspond to different height it is opposite
The pile body of both sides；And it is fixedly connected with beam in the top drawknot of the pile body.
In the present embodiment, the rectangular cross-section of pile body.Two rows of friction piles are arranged in vertical shaft uphill, downhill direction both sides, are prevented
It only comes down when Construction of Silo, reduces Construction of Silo risk.Pile body is of a straight line type uniform arrangement, rectangular section, specific section
Size, stake be long, anchorage length and spacing rule of thumb combine to calculate and carry out Rational choice.Pile body passes through tie-beam in top side location
It is attached, forms whole antiskid structure.
One better embodiment of the construction method of the air shaft as high gradient slope metro station tunnel of the present invention, ginseng
Read Fig. 3, it is shown that after the horizontal duct excavation of the construction method of high gradient slope metro station tunnel air shaft of the present invention just
Sectional schematic diagram.Refering to Fig. 4, it is shown that the horizontal wind of the construction method of high gradient slope metro station tunnel air shaft of the present invention
The sectional schematic diagram for prolonging side slope direction after road excavation.In conjunction with shown in Fig. 1 to Fig. 4, excavates horizontal duct 40 and be connected to 30 He of tunnel
Through-hole 20.Through-hole 20 is connected to horizontal duct 40 at crown position and is interconnected.After excavating horizontal duct 40 and the perforation of through-hole 20,
The Temporary Ventilation hole that through-hole 20 can be used as horizontal duct 40 uses, and improves the construction operation environment of horizontal duct 40, reduces muck removal
Dust concentration in the process.Horizontal duct 40 is permanently to use structure, need not be backfilled.
One better embodiment of the construction method of the air shaft as high gradient slope metro station tunnel of the present invention, ginseng
Read Fig. 5, it is shown that in the air shaft digging process of the construction method of high gradient slope metro station tunnel air shaft of the present invention
Positive sectional schematic diagram.Refering to Fig. 6, it is shown that the construction method of high gradient slope metro station tunnel air shaft of the present invention is led to
The sectional schematic diagram for prolonging side slope direction during wind shaft excavation.In conjunction with shown in Fig. 1 to Fig. 6, opened using drilling and blasting method or machinery
Digging method from top to bottom digging excavation air shaft 50, at the same followed by the inner wall of the air shaft 50 excavated out by up to
Lower setting vertical shaft just serves as a contrast 60, and in the present embodiment, for the equipment for lining 60 at the beginning of vertical shaft in earth's surface and working face, vertical shaft just serves as a contrast 60
Include along air shaft 50 inner wall be arranged bracing members and injection in the concrete of inner wall.Vertical shaft just serves as a contrast 60 and plays to ventilation
The effect that the inner wall of vertical shaft 50 is protected.
One better embodiment of the construction method of the air shaft as high gradient slope metro station tunnel of the present invention, ginseng
Read Fig. 7, it is shown that the vertical shaft two for the construction method of high gradient slope metro station tunnel air shaft of the present invention serves as a contrast Bracing Process
In positive sectional schematic diagram.Refering to Fig. 8, it is shown that the construction method of high gradient slope metro station tunnel air shaft of the present invention
Vertical shaft two serves as a contrast the sectional schematic diagram for prolonging side slope direction in Bracing Process.In conjunction with shown in Fig. 1 to Fig. 8, excavated in air shaft 50
After the completion, in the inner surface of lining 60 at the beginning of the vertical shaft of air shaft 50, from bottom to top construction shaft two serves as a contrast 70.The lining of vertical shaft two 70 uses
Hand-placed concrete is formed.
Specifically, round vertical through holes are excavated in well head center from top to bottom using manually digging hole, until shaft bottom designed elevation
Position, design aperture are 1m.In Specific construction, walling crib fore shaft should be poured before borehole first, prevents hole Zhou Tushi and surface water
In access aperture, and pre- doweling is connect with retaining wall.Manually digging hole answers merogenesis to excavate, merogenesis supporting, and section length takes 1.0m, waste residue to pass through
Well-bucket is transported to ground, and uses punching block cast-in-place concrete retaining wall in time.The vertical muscle of retaining wall epimere stretches into hypomere retaining wall by design requirement
Interior, the lap of splice for saving retaining wall up and down cannot be less than 50mm.The a diameter of design aperture of pore digging adds 2 times of dado thickness, shield
Wall thickness can use 10~15cm.In bad or more in the completely decomposed layer and level of ground water severely-weathered layer of geological condition, should use
Plain concrete retaining wall can be used in the little severely-weathered layer of water percolating capacity in reinforced concrete core-tube, and middle weathering and weak weathered stratum
Stratum is preferable, can not supporting.To accelerate to dig through hole construction speed, cement consumption 1%~2% can be added in breast wall concrete
Early strength agent, the stratum more to underground water, can also be added accelerator.In addition, impact drill also can be used when field condition allows
Equal mechanical drilling methods.
The construction method of high gradient slope metro station tunnel air shaft of the present invention has the beneficial effect that：
The present invention can be solved effectively by the through-hole that construction one is connected with lower horizontal air duct before air shaft formally tunnels
Certainly limited the technical problem of muck removal difficulty at high gradient slope by work-yard, quarrel soil by through-hole falls to horizontal duct and by being cut
Navy barrow transports muck removal, is remarkably improved muck removal efficiency, reduces energy consumption.Quarrel is fallen when also solving traditional positive well method construction simultaneously
Threaten the problem of construction personnel's safety；When tunneling vertical shaft using drilling and blasting method, through-hole increases explosion free face, to demolition effect
It improves.In addition, horizontal duct is with after through-hole perforation, the Temporary Ventilation hole that through-hole can be used as horizontal duct uses, and changes
Kind horizontal duct construction operation environment, reduces the dust concentration during muck removal.And friction pile plays the vertical work for reinforcing support
With the disturbance of side slope, the problem of landslide when for preventing excavation construction, reduces whole when reducing air shaft excavation
Body construction risk.
The present invention has been described in detail with reference to the accompanying drawings, those skilled in the art can be according to upper
It states and bright many variations example is made to the present invention.Thus, certain details in embodiment should not constitute limitation of the invention, this
Invention will be using the range that the appended claims define as protection scope of the present invention.
Claims (7)
1. a kind of construction method of high gradient slope metro station tunnel air shaft, which is characterized in that including：
Vertical friction pile is plugged in the opposite sides corresponding to different height of air shaft to be excavated；
Through-hole is vertically excavated in the range of the air shaft to be excavated, until the design of the air shaft to be excavated
Elevation location；
Horizontal duct is excavated between existing tunnel and the through-hole, the through-hole is made to be connected with the tunnel；And
Air shaft to be excavated described in from top to bottom excavating, will be under the quarrel soil of excavation using the through-hole to designed elevation position
It drops down onto the horizontal duct and is transported to outside the tunnel.
2. the construction method of high gradient slope metro station tunnel air shaft as described in claim 1, which is characterized in that
The bottom of the through-hole and the top of the horizontal duct are interconnected.
3. the construction method of high gradient slope metro station tunnel air shaft as claimed in claim 2, which is characterized in that
During from top to bottom excavating the air shaft, at the beginning of from top to bottom vertical shaft is arranged in the inner wall of the air shaft
Lining；
After the completion of the air shaft excavates, the inner surface that serves as a contrast at the beginning of the vertical shaft of the air shaft from bottom to top construction shaft
Two linings.
4. the construction method of high gradient slope metro station tunnel air shaft as claimed in claim 2, which is characterized in that described
Just lining bag includes bracing members and injection along the inner wall setting of the air shaft in the concrete of the inner wall to vertical shaft.
5. the construction method of high gradient slope metro station tunnel air shaft as described in claim 1, which is characterized in that opening
It further includes the well head for measuring and positioning the air shaft to dig before the through-hole.
6. the construction method of high gradient slope metro station tunnel air shaft as described in claim 1, which is characterized in that described
A diameter of 1m of through-hole.
7. the construction method of high gradient slope metro station tunnel air shaft as described in claim 1, which is characterized in that plug
The friction pile includes：
Interval is inserted in the pile body of the opposite sides corresponding to different height of air shaft to be excavated；And
It is fixedly connected with beam in the top drawknot of the pile body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810435282.6A CN108590662A (en) | 2018-05-09 | 2018-05-09 | The construction method of high gradient slope metro station tunnel air shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810435282.6A CN108590662A (en) | 2018-05-09 | 2018-05-09 | The construction method of high gradient slope metro station tunnel air shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108590662A true CN108590662A (en) | 2018-09-28 |
Family
ID=63636000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810435282.6A Pending CN108590662A (en) | 2018-05-09 | 2018-05-09 | The construction method of high gradient slope metro station tunnel air shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108590662A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043302A (en) * | 2019-05-28 | 2019-07-23 | 河南发恩德矿业有限公司 | A kind of only safe and efficient construction method of head development end vent (-escape) raise of long range |
| CN112031807A (en) * | 2020-07-23 | 2020-12-04 | 中铁隆工程集团有限公司 | Variable-section supporting structure of station tunnel and construction method of station tunnel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305075A (en) * | 2011-06-28 | 2012-01-04 | 中国水利水电第五工程局有限公司 | Vertical shaft construction method under unfavorable geological condition |
| CN202520374U (en) * | 2012-04-13 | 2012-11-07 | 中铁十七局集团第三工程有限公司 | Safety guard for slag removing hole of ventilation shaft in tunnel |
| CN103046931A (en) * | 2012-12-03 | 2013-04-17 | 云南建工水利水电建设有限公司 | Method for forming holes of vertical shaft/pilot shaft through impact type drilling machine in impacting mode |
| CN104271867A (en) * | 2012-03-15 | 2015-01-07 | 约瑟夫·格罗特多斯特 | Method and apparatus for introducing or sinking cavities in rock |
| CN205840904U (en) * | 2016-07-20 | 2016-12-28 | 中南大学 | A kind of motorless tunnel ventilation device |
| CN207130739U (en) * | 2017-06-04 | 2018-03-23 | 吴震 | Multiple rows of anchor cable adds the antiskid structure of row's anti-slide pile controlling major landslip |
-
2018
- 2018-05-09 CN CN201810435282.6A patent/CN108590662A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305075A (en) * | 2011-06-28 | 2012-01-04 | 中国水利水电第五工程局有限公司 | Vertical shaft construction method under unfavorable geological condition |
| CN104271867A (en) * | 2012-03-15 | 2015-01-07 | 约瑟夫·格罗特多斯特 | Method and apparatus for introducing or sinking cavities in rock |
| CN202520374U (en) * | 2012-04-13 | 2012-11-07 | 中铁十七局集团第三工程有限公司 | Safety guard for slag removing hole of ventilation shaft in tunnel |
| CN103046931A (en) * | 2012-12-03 | 2013-04-17 | 云南建工水利水电建设有限公司 | Method for forming holes of vertical shaft/pilot shaft through impact type drilling machine in impacting mode |
| CN205840904U (en) * | 2016-07-20 | 2016-12-28 | 中南大学 | A kind of motorless tunnel ventilation device |
| CN207130739U (en) * | 2017-06-04 | 2018-03-23 | 吴震 | Multiple rows of anchor cable adds the antiskid structure of row's anti-slide pile controlling major landslip |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043302A (en) * | 2019-05-28 | 2019-07-23 | 河南发恩德矿业有限公司 | A kind of only safe and efficient construction method of head development end vent (-escape) raise of long range |
| CN112031807A (en) * | 2020-07-23 | 2020-12-04 | 中铁隆工程集团有限公司 | Variable-section supporting structure of station tunnel and construction method of station tunnel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104612162B (en) | A kind of Deep Foundation Pit of Metro Stations excavation construction method | |
| CN106567717B (en) | It is a kind of to double as construction access ramp structure and construction method using subway entrance | |
| CN102094425B (en) | Foundation pit construction method adopting shallow buried depth Larsen steel plate pile as protective cofferdam | |
| CN102182472B (en) | Backfill repairing method for tunnel collapse cavity | |
| CN104120731B (en) | A kind of tunnel subsidence protector and construction method thereof | |
| CN103758123B (en) | The construction method of manually digging hole filling pile retaining wall lining | |
| CN102305075A (en) | Vertical shaft construction method under unfavorable geological condition | |
| CN109736827B (en) | Method for excavating urban subway hard rock stratum communication channel by high-pressure gas expansion fracturing | |
| CN107023300A (en) | A kind of use canopy, which is defended the doctrine, builds the construction method of subway station | |
| CN207633352U (en) | A kind of slope reinforcement structure for rapid rescue construction | |
| CN106761778A (en) | A kind of underground digging in subway station construction technology suitable for upper-soft lower-hard ground | |
| CN102296630A (en) | Construction method of long-screw high-pressure mix jetting cement diaphragm wall | |
| CN110344400A (en) | The hard rock pore-forming construction technology of churning driven opportunity | |
| CN104847362A (en) | Large-span subway station underground excavation construction method for hard rock stratum | |
| CN107503755A (en) | A kind of construction method for exempting from button arch flat-top cavern-pile method construction subway station | |
| CN106988760A (en) | Facility-sliding strata tunnel portal reinforcing construction and construction method | |
| AU669916B2 (en) | Undercut excavation method | |
| CN205100989U (en) | Utilize oblique access structure of subway access & exit double as construction | |
| CN110259490A (en) | A kind of Underground Subway Station construction method | |
| CN109209443A (en) | A kind of construction method of breaking surrounding rock tunnel structure | |
| CN115539048A (en) | Construction method for shallow-buried bias tunnel portal | |
| CN109057802A (en) | Shallow tunnel with big cross-section underpass of freeways construction method | |
| CN206888992U (en) | A kind of water-bed mine shield tunnel combination docking structure form | |
| CN111997616A (en) | Method for continuously recycling residual top-bottom column by adopting large section | |
| CN108590662A (en) | The construction method of high gradient slope metro station tunnel air shaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180928 |