CN109026018A - First branch connection arch two serves as a contrast free-standing interval structure section tunneling machinery trolley construction - Google Patents

First branch connection arch two serves as a contrast free-standing interval structure section tunneling machinery trolley construction Download PDF

Info

Publication number
CN109026018A
CN109026018A CN201810854207.3A CN201810854207A CN109026018A CN 109026018 A CN109026018 A CN 109026018A CN 201810854207 A CN201810854207 A CN 201810854207A CN 109026018 A CN109026018 A CN 109026018A
Authority
CN
China
Prior art keywords
arm
construction
tunneling
trolley
length
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
Application number
CN201810854207.3A
Other languages
Chinese (zh)
Inventor
李连玉
郑利红
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway Seventh Group Xi'an Railway Engineering Co Ltd
Original Assignee
China Railway Seventh Group Xi'an Railway Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Railway Seventh Group Xi'an Railway Engineering Co Ltd filed Critical China Railway Seventh Group Xi'an Railway Engineering Co Ltd
Priority to CN201810854207.3A priority Critical patent/CN109026018A/en
Publication of CN109026018A publication Critical patent/CN109026018A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/001Improving soil or rock, e.g. by freezing; Injections
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04Lining with building materials
    • E21D11/10Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/14Lining predominantly with metal
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00Setting anchoring-bolts

Abstract

The present invention provides just branch connection arch two and serves as a contrast free-standing interval structure section tunneling machinery trolley construction, the following steps are included: step (1): before pilot drive, according to require carry out deep hole grouting reinforcing, step (2): left and right line is staggered after 10~15m, it is required to carry out deep hole grouting reinforcing according to design drawing, the same step of method (1), step (3): the step soil body is dug down using tunneling trolley left arm, and to grating position fluting of getting out of a predicament or an embarrassing situation, auxiliary erection grid;Step (4): the waterproof layer and secondary structure of left line tunnel sidewalls and crown are performed according to monitoring and measurement data;Step (5): the waterproof and secondary structure of right line tunnel sidewalls and crown are performed according to monitoring and measurement data.The present invention can mitigate labor intensity, improve construction efficiency, reduces contingency generation and improve construction quality;Therefore, this engineering method is worth popularizing in an all-round way, it is proposed that construction enterprises can be used in identical project under construction.

Description

First branch connection arch two serves as a contrast free-standing interval structure section tunneling machinery trolley construction
Technical field
The present invention relates to engineering design technical field, specially just branch connection arch two serves as a contrast free-standing interval structure sections Tunneling machinery trolley construction.
Background technique
As urbanization paces are accelerated, China's subway has entered the Large scale construction stage, it is contemplated that national subway to 2020 Total kilometrage is more than 6000Km, and Metro construction is widely used in subway and applies since its flexibility is good, saves the advantages that land occupation Work accounts for about the 55% of subway work, plays particularly important effect.
However, the development of city underground boring construction over more than 30 years, still relies primarily on the construction of a large amount of manpowers, safety is poor, Low efficiency, construction operation bad environments, and as social development, demographic dividend are gradually lost, labour has shown deficiency especially.Often Summer harvest autumn harvest period in year is since worker's wretched insufficiency can not normally maintain to construct substantially, and worker's average age alreadys exceed 45 Year.To promote tunneling preliminary bracing construction efficiency, reducing construction cost, control construction safety risk, national Administration of Work Safety Supervision is responded It is proposed the theory of realization " mechanization is substituted, and automation subtracts people ".
It is still in the construction of tunneling preliminary bracing at present using the construction of tunneling trolley and promotes the trial period, do not entered also big The sizable application stage.The profession of itself is tended to tunneling trolley preliminary bracing construction knowledge in trolley research and development, manufacturer, or It is confined to the knowledge of theoretical side, and lacks practical experience.It constructs suitable for weak, sand ovum stratum tunneling trolley still in root It is constantly improve in optimization according to the actual conditions and demand of construction site, is adapted to the big partial size drift biggish Beijing Furukawa of cobble content The tunneling trolley TWZ260 tunneling trolley of bed sedimentary formation is put into for the first time to be tried out, and also needs to carry out a large amount of experimental study.Each test Unit in charge of construction has set up tackling of key scientific and technical problems group according to engineering characteristic, it is therefore an objective to for tunneling trolley preliminary bracing under different working conditions Construction promotes and applies in Beijing and other cities and provides technical data and construction experience, and is Its Relevant Technology Standards, specification, quota Establishment provide data basis.
Metro preliminary bracing construction machinery replaces manpower to step the first step, achieves some achievements, but do not have also System, large-scale application are formed, constantly improvement and optimization summary is also needed.Once large-scale application will generate huge in the future Economic benefit and social benefit.It not only reduces skill investment, and cost of labor is greatly reduced;Construction efficiency is improved, is shortened the construction period, Enterprise administration expense and effective solution boring construction skill crisis in short supply instantly are reduced, subway construction and the underground space is promoted to open The mechanization of hair is changed.
Summary of the invention
It is mechanical that technical problem solved by the invention is to provide the just free-standing interval structure section tunneling of two lining of branch connection arch Trolley construction, to solve the problems in above-mentioned background technique.
Technical problem solved by the invention is realized using following technical scheme: first branch connection arch two serves as a contrast free-standing section knot Structure section tunneling machinery trolley construction, comprising the following steps:
Step (1): it before pilot drive, is required to carry out deep hole grouting reinforcing according to design drawing, at the beginning of reinforcing scope is pilot tunnel 1.5-2m other than branch structure outer contour, 0.5-0.8m within inner outline, at median septum except;Each slip casting circulation, is reinforced Length is 15m, excavation length 12m, reserves 3m lap segment, using manually Core Soil being stayed to excavate cavern, sets that arch is advanced small to lead Pipe and lock foot anchoring stock, set up grid steel frame and temporary support in time, and closing cyclization carries out just branch back-grouting;On first branch grid Preserved node plate connects convenient for subsequent grid;
Step (2): left and right line is staggered after 10~15m, is required to carry out deep hole grouting reinforcing according to design drawing, method is synchronous Suddenly (1), swung up and down by the left and right of tunneling trolley right arm, the variation of the length of large arm and milling head the movements such as to swing up and down real It now digs a hole the room soil body, stays Core Soil;Vertically upward by milling head, then pass through the left and right of large arm and swing up and down, the length of large arm The movements such as degree variation are realized slots at cavern's grating position, by self-level(l)ing device, guarantees large arm during the swing, milling Planer head is in state vertically upward always;Grid is fixed in the U-shaped card slot of left arm scraper bowl back and is lifted to work surface and is assisted It is manually installed;Self-feeding anchor pile is set using tunneling trolley right arm, it is auxiliary in such a way that static pressure and rotation, wind use simultaneously With impact;Elevation angle control is set at 15~20 °;Lock foot anchoring stock manually is set, and carries out back-grouting.
Step (3): cavern in advance about 3~3.5m when, the step soil body is dug down using tunneling trolley left arm, and to getting out of a predicament or an embarrassing situation Grating position fluting, auxiliary erection grid;
Step (4): removing the interim inverted arch in cavern according to monitoring and measurement data, is determined according to Monitoring During The Access specific long Degree, performs the waterproof layer and secondary structure of left line tunnel sidewalls and crown;
Step (5): determine that left and right line is staggered 10-15m, tears open according to monitoring and measurement data according to two lining cavern length are first poured Except the interim inverted arch in cavern, length is removed according to Monitoring During The Access and determines specific length, perform right line tunnel sidewalls and crown Waterproof and secondary structure.
The slip casting circulation construction front hanging double layer bar sprays 100mm thickness concrete wall for grouting.
The method of the fluting, auxiliary erection grid are as follows: slagged tap using loop chain type conveyer, by left arm scraper bowl by dregs It takes off and is pushed into shovel board, carrier bar transports dregs transportation to trolley tail portion, electro-tricycle;Closing preliminary bracing steelframe is gone forward side by side in time Row back-grouting sets up fashioned iron temporary support apart from 10~12m of excavation face in time
Be compared to open technology, there are following advantages by the present invention: the present invention can mitigate labor intensity, improve and apply Work efficiency rate reduces contingency generation and improves construction quality;Therefore, this engineering method is worth popularizing in an all-round way, it is proposed that construction enterprises exist It can be used in identical project under construction.
Detailed description of the invention
Fig. 1 is mechanical boring construction flow chart of the invention.
Specific embodiment
In order to make, technological means of the invention, creation characteristic, workflow, application method reach purpose and effect is easy to bright White understanding, below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described, In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " company ", " connection " It shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected to be mechanical connection, It is also possible to be electrically connected;It can be directly connected, can also indirectly connected through an intermediary, it can company inside two elements It is logical, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts Example, shall fall within the protection scope of the present invention.
Embodiment 1
First branch connection arch two serves as a contrast free-standing interval structure section tunneling machinery trolley construction, comprising the following steps:
Step (1): it before pilot drive, is required to carry out deep hole grouting reinforcing according to design drawing, at the beginning of reinforcing scope is pilot tunnel 1.5m other than branch structure outer contour, 0.5m within inner outline, at median septum except;Each slip casting circulation, strengthening length are 15m, excavation length 12m reserve 3m lap segment.Slip casting front hanging bilayer A6 steel mesh sprays 100mm thickness C20 concrete wall for grouting. Using manually Core Soil being stayed to excavate the cavern 1#, arch advanced tubule and lock foot anchoring stock are set, grid steel frame is set up in time and faces When support, closing cyclization carries out just branch back-grouting;Preserved node plate on first branch grid, connects convenient for subsequent grid.
Step (2): left and right line is staggered after 10~15m, is required to carry out deep hole grouting reinforcing according to design drawing, method is the same as left Line 1# pilot tunnel, swung up and down by the left and right of tunneling trolley right arm, the variation of the length of large arm and milling head swing up and down etc. it is dynamic Make to realize and dig the cavern the 3# soil body, stays Core Soil;Vertically upward by milling head, then pass through the left and right of large arm and swing up and down, greatly The movements such as the length variation of arm are realized slots at the cavern 3# grating position, by self-level(l)ing device, guarantees that large arm is being swung In the process, milling head is in state vertically upward always;Grid is fixed in the U-shaped card slot of left arm scraper bowl back and is lifted to work Industry face indirect labor installation;Self-feeding anchor pile is set using tunneling trolley right arm, by the way of static pressure+rotation+wind, is aided with Impact;Elevation angle control is set at 15~20 °;Lock foot anchoring stock manually is set, and carries out back-grouting.
Step (3): the cavern You Xian 3# in advance about 3~3.5m when, the step soil body is dug down using tunneling trolley left arm, and right Grating position of getting out of a predicament or an embarrassing situation fluting, auxiliary erection grid;It is slagged tap using loop chain type conveyer, dregs is taken off by left arm scraper bowl and is pushed into In shovel board, carrier bar transports dregs transportation to trolley tail portion, electro-tricycle;Preliminary bracing steelframe is closed in time and is carried out behind Slip casting sets up fashioned iron temporary support apart from 10~12m of excavation face in time.
Step (4): removing 1, the interim inverted arch in the cavern 2# according to monitoring and measurement data, is determined according to Monitoring During The Access specific Length.Perform the waterproof layer and secondary structure of left line tunnel sidewalls and crown.
Step (5): left and right line is staggered 12m (determining according to two lining cavern length are first poured), is torn open according to monitoring and measurement data Except 3, the interim inverted arch in the cavern 4#, length is removed according to Monitoring During The Access and determines specific length, performs right line tunnel sidewalls and top The waterproof and secondary structure of arch.
Embodiment 2
First branch connection arch two serves as a contrast free-standing interval structure section tunneling machinery trolley construction, comprising the following steps:
Step (1): it before pilot drive, is required to carry out deep hole grouting reinforcing according to design drawing, at the beginning of reinforcing scope is pilot tunnel 2m other than branch structure outer contour, 0.8m within inner outline, at median septum except;Each slip casting circulation, strengthening length are 15m, excavation length 12m reserve 3m lap segment.Slip casting front hanging bilayer A6 steel mesh sprays 100mm thickness C20 concrete wall for grouting. Using manually Core Soil being stayed to excavate the cavern 1#, arch advanced tubule and lock foot anchoring stock are set, grid steel frame is set up in time and faces When support, closing cyclization carries out just branch back-grouting;Preserved node plate on first branch grid, connects convenient for subsequent grid.
Step (2): left and right line is staggered after 10~15m, is required to carry out deep hole grouting reinforcing according to design drawing, method is the same as left Line 1# pilot tunnel, swung up and down by the left and right of tunneling trolley right arm, the variation of the length of large arm and milling head swing up and down etc. it is dynamic Make to realize and dig the cavern the 3# soil body, stays Core Soil;Vertically upward by milling head, then pass through the left and right of large arm and swing up and down, greatly The movements such as the length variation of arm are realized slots at the cavern 3# grating position, by self-level(l)ing device, guarantees that large arm is being swung In the process, milling head is in state vertically upward always;Grid is fixed in the U-shaped card slot of left arm scraper bowl back and is lifted to work Industry face indirect labor installation;Self-feeding anchor pile is set using tunneling trolley right arm, by the way of static pressure+rotation+wind, is aided with Impact;Elevation angle control is set at 15~20 °;Lock foot anchoring stock manually is set, and carries out back-grouting.
Step (3): the cavern You Xian 3# in advance about 3~3.5m when, the step soil body is dug down using tunneling trolley left arm, and right Grating position of getting out of a predicament or an embarrassing situation fluting, auxiliary erection grid;It is slagged tap using loop chain type conveyer, dregs is taken off by left arm scraper bowl and is pushed into In shovel board, carrier bar transports dregs transportation to trolley tail portion, electro-tricycle;Preliminary bracing steelframe is closed in time and is carried out behind Slip casting sets up fashioned iron temporary support apart from 10~12m of excavation face in time.
Step (4): removing 1, the interim inverted arch in the cavern 2# according to monitoring and measurement data, is determined according to Monitoring During The Access specific Length.Perform the waterproof layer and secondary structure of left line tunnel sidewalls and crown.
Step (5): left and right line is staggered 12m (determining according to two lining cavern length are first poured), is torn open according to monitoring and measurement data Except 3, the interim inverted arch in the cavern 4#, length is removed according to Monitoring During The Access and determines specific length, performs right line tunnel sidewalls and top The waterproof and secondary structure of arch.
1) construction efficiency is promoted
By left hole hand excavation, right hole mechanical excavation comparative analysis, under the gravel-boulder bed geological conditions, mechanical excavation mill The work efficiency of conjunction phase is 2-2.5m/d, more double than traditional artificial excavations work efficiency, converts into the calculating of 1Km mining sectbn, duration in advance about 10 A month, save every about 250~3,000,000 yuan of expense of direct correlation.
Lifting construction efficiency saves expense statistical form
2) staffing is reduced
Mechanical Method is excavated, and up/down steps are equipped with 6 workers altogether, round the clock two class of 12 people.Traditional artificial excavation need to be equipped with 12 Worker, round the clock two class of 24 people.Shoveling does not use pneumatic pick, significantly reduces labor intensity.
Artificial investment is reduced, cost of labor is greatly reduced.To complete 1Km tunneling list hole interval computation, 12 are reduced manually Ten thousand yuan of service charge about 180-200 can be saved.
3) vertical shaft setting is reduced
It is high-efficient since Mechanical Method excavation construction progress is fast, therefore its construction shaft spacing can be increased suitably, tunneling of growing up Section can optimize reduction 1-2 vertical shaft of setting.
In conclusion engineering method authorization type of the present invention has the active effect that
Using after this engineering method:
1) secure context
1. manipulator other than face 5m operating robotic arm tunnel, effectively prevent the face soil body cave in, and Fortuitous casualty accident may be thereby resulted in.
2. reducing staffing, hence it is evident that reduce labor intensity of workers, be only engaged in auxiliary and excavate.
3. improving effect, substantially shorten and close the cyclic time, makes to excavate whole safer.
4. transporting grid, preventing collision object when manual handling or hitting the person, while preventing around collision and up and down Electric wire.
2) in terms of quality
1. drift pebble layer is manually set, advanced tubule is highly difficult, and tunneling trolley is by the way of static pressure+rotation+wind Anchor pole is set, opposite can ensure advance support quality.
2. Core Soil indwelling specification.
3), social benefit
Boring construction manpower crisis in short supply instantly is solved, national Administration of Work Safety Supervision special campaigns scheme is responded, it is final to realize " machine Toolization substitute, automation subtract people " ambitious goal.
(1) Metro method construction efficiency is improved, safety is improved, reduces and lost caused by contingency, solves worker Aging, human resources problem in short supply.
(2) construction operation environment is substantially improved, the occupational health for improving construction personnel is horizontal, embodies people-oriented science The view of development.
(3) direct technological guidance is provided for Urban Underground Space Excavation planning, design, construction and operation, and can be used as The compiling foundation of Its Relevant Technology Standards, specification.
The above shows and describes the basic principle, main features and advantages of the invention.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes Change and improvement all fall within the protetion scope of the claimed invention.Claimed range of the invention by appended claims and Its equivalent thereof.

Claims (3)

1. just branch connection arch two serves as a contrast free-standing interval structure section tunneling machinery trolley construction, it is characterised in that: including following Step:
Step (1): it before pilot drive, is required to carry out deep hole grouting reinforcing according to design drawing, reinforcing scope is pilot tunnel just branch knot 1.5-2m other than structure outer contour, 0.5-0.8m within inner outline, at median septum except;Each slip casting circulation, strengthening length For 15m, excavation length 12m, reserve 3m lap segment, using manually Core Soil being stayed to excavate cavern, set arch advanced tubule and Lock foot anchoring stock, sets up grid steel frame and temporary support in time, and closing cyclization carries out just branch back-grouting;It is reserved on first branch grid Gusset plate connects convenient for subsequent grid;
Step (2): left and right line is staggered after 10~15m, is required to carry out deep hole grouting reinforcing, the same step of method according to design drawing (1), it is swung up and down by the left and right of tunneling trolley right arm, the variation of the length of large arm and the movements such as swing up and down of milling head are realized It digs a hole the room soil body, stays Core Soil;Vertically upward by milling head, then pass through the left and right of large arm and swing up and down, the length of large arm The movements such as variation are realized slots at cavern's grating position, by self-level(l)ing device, guarantees large arm during the swing, milling Head is always in state vertically upward;Grid is fixed in the U-shaped card slot of left arm scraper bowl back and is lifted to work surface and assists people Work installation;Self-feeding anchor pile is set using tunneling trolley right arm, in such a way that static pressure and rotation, wind use simultaneously, is aided with Impact;Elevation angle control is set at 15~20 °;Lock foot anchoring stock manually is set, and carries out back-grouting.
Step (3): when the advanced 3~3.5m in cavern, the step soil body is dug down using tunneling trolley left arm, and to grating position of getting out of a predicament or an embarrassing situation Fluting, auxiliary erection grid;
Step (4): the interim inverted arch in cavern is removed according to monitoring and measurement data, specific length is determined according to Monitoring During The Access, is applied Do the waterproof layer and secondary structure of left line tunnel sidewalls and crown;
Step (5): it determines that left and right line is staggered 10-15m according to two lining cavern length are first poured, hole is removed according to monitoring and measurement data The interim inverted arch in room removes length according to Monitoring During The Access and determines specific length, performs the waterproof of right line tunnel sidewalls and crown And secondary structure.
2. just branch connection arch two according to claim 1 serves as a contrast free-standing interval structure section tunneling machinery trolley construction, It is characterized by: the slip casting circulation construction front hanging double layer bar sprays 100mm thickness concrete wall for grouting.
3. just branch connection arch two according to claim 1 serves as a contrast free-standing interval structure section tunneling machinery trolley construction, It is characterized by: the method for the fluting, auxiliary erection grid are as follows: it is slagged tap using loop chain type conveyer, it will by left arm scraper bowl Dregs, which is taken off, to be pushed into shovel board, and carrier bar transports dregs transportation to trolley tail portion, electro-tricycle;Closing preliminary bracing steelframe in time And back-grouting is carried out, apart from 10~12m of excavation face, fashioned iron temporary support is set up in time.
CN201810854207.3A 2018-07-30 2018-07-30 First branch connection arch two serves as a contrast free-standing interval structure section tunneling machinery trolley construction Pending CN109026018A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810854207.3A CN109026018A (en) 2018-07-30 2018-07-30 First branch connection arch two serves as a contrast free-standing interval structure section tunneling machinery trolley construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810854207.3A CN109026018A (en) 2018-07-30 2018-07-30 First branch connection arch two serves as a contrast free-standing interval structure section tunneling machinery trolley construction

Publications (1)

Publication Number Publication Date
CN109026018A true CN109026018A (en) 2018-12-18

Family

ID=64647857

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810854207.3A Pending CN109026018A (en) 2018-07-30 2018-07-30 First branch connection arch two serves as a contrast free-standing interval structure section tunneling machinery trolley construction

Country Status (1)

Country Link
CN (1) CN109026018A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110005442A (en) * 2019-04-26 2019-07-12 中铁二十三局集团第六工程有限公司 Under wear existing building Urban Underground mining sectbn surrounding rock consolidation technique

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104612698A (en) * 2015-01-24 2015-05-13 杭州天恒投资建设管理有限公司 Method for constructing upper step middle partition wall of shallow-buried excavation tunnel
CN204729099U (en) * 2015-07-13 2015-10-28 中铁第六勘察设计院集团有限公司 Rock quality layer tunneling three layers of subway station canopy structure
CN105332709A (en) * 2015-11-18 2016-02-17 北京建工土木工程有限公司 Construction method for initial supporting arch secondary-lining independent tunnel excavation and structures

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104612698A (en) * 2015-01-24 2015-05-13 杭州天恒投资建设管理有限公司 Method for constructing upper step middle partition wall of shallow-buried excavation tunnel
CN204729099U (en) * 2015-07-13 2015-10-28 中铁第六勘察设计院集团有限公司 Rock quality layer tunneling three layers of subway station canopy structure
CN105332709A (en) * 2015-11-18 2016-02-17 北京建工土木工程有限公司 Construction method for initial supporting arch secondary-lining independent tunnel excavation and structures

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
洪鹏等: "双臂暗挖台车在土质地铁隧道施工适用性探讨", 《隧道建设(中英文)》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110005442A (en) * 2019-04-26 2019-07-12 中铁二十三局集团第六工程有限公司 Under wear existing building Urban Underground mining sectbn surrounding rock consolidation technique

Similar Documents

Publication Publication Date Title
CN106869944B (en) The extra small clear-distance tunnel construction method in underground interchange intersection under complex environment
CN101775988B (en) Method for constructing from inclined shaft to main tunnel in weak surrounding rock
CN100451295C (en) Tunnel dredging method suitable for railway large section IV, V class rock tunnel
CN103321230B (en) The deep big foundation pit excavation method in place is passed through in the long distance of operation shallow embedding subway
CN101440708B (en) PBA shallow buried underground excavating close range large section three-hole separated island type structure construction method
CN202707075U (en) Long-span subway station main structure constructed based on column and arch method
CN101914925B (en) Basement by using optimized composite prefabricated arch wall as external wall
CN101691842B (en) Three-arm hydraulic wagon drill and tunnel drilling and grouting construction method
CN104453921B (en) A kind of Soft Rock Tunnel Excavation construction technology
CN107060840B (en) A kind of construction method of large cross-section tunnel V grades of country rock excavation supportings
CN105822310B (en) Rapid low-risk subway station tunnel construction method
CN103244130B (en) Quick excavation and expanding construction method of herringbone tunnel section
CN104929648B (en) A kind of tunnel branch base tunnel construction method
CN102606167B (en) Settlement control construction method for transverse grouting guide pipe of shallow underground excavation tunnel
CN101858220B (en) Tunnel double upper sidewall heading construction method
CN104102525B (en) A kind of risk stratification control method for passing through city track traffic engineering
CN105697021B (en) The prefabricated tunnel and construction method in the shallow earthing riverbed of shield crossing
CN102562075B (en) Large cross-section weak surrounding rock tunnel three-step and six-part short-distance construction method
CN102644466B (en) Joist arching method for constructing ultra-shallow buried large-span underground excavated subway station in rocky stratum
CN101864963B (en) Large-section loess tunnel construction method
CN102182472B (en) Backfill repairing method for tunnel collapse cavity
CN106761778B (en) A kind of underground digging in subway station construction technology suitable for upper-soft lower-hard ground
CN106759366B (en) The construction method of soil excavation and riding track arrangement in a kind of foundation pit
CN102305075A (en) Vertical shaft construction method under unfavorable geological condition
CN104612698B (en) A kind of shallow-depth-excavation tunnel top bar interval wall construction method

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