CN109252873A - A plurality of intersection mountain ridge road and rail Tunnel Design construction method - Google Patents

A plurality of intersection mountain ridge road and rail Tunnel Design construction method Download PDF

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Publication number
CN109252873A
CN109252873A CN201810833334.5A CN201810833334A CN109252873A CN 109252873 A CN109252873 A CN 109252873A CN 201810833334 A CN201810833334 A CN 201810833334A CN 109252873 A CN109252873 A CN 109252873A
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CN
China
Prior art keywords
tunnel
construction
vcehicular
lining
new highway
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Application number
CN201810833334.5A
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Chinese (zh)
Inventor
朱汉华
吴志军
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武汉大学
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Priority to CN201810833334.5A priority Critical patent/CN109252873A/en
Publication of CN109252873A publication Critical patent/CN109252873A/en

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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
    • E21D9/14Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
    • 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
    • E21D11/003Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices
    • 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
    • E21D11/04Lining 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
    • E21D11/107Reinforcing elements therefor; Holders for the reinforcing elements
    • 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
    • E21D11/15Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
    • E21D11/155Laggings made of strips, slats, slabs or sheet piles
    • 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
    • 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
    • E21D9/006Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries by making use of blasting methods

Abstract

The present invention is a plurality of design and construction method for intersecting mountain ridge road and rail tunnel: existing vcehicular tunnel secondary lining pre-reinforcement: within the scope of the longitudinal 60~70m of existing vcehicular tunnel secondary lining of tunnel crossings on different level lower part, every 50~100cm, using on MPC glue or the wide 20cm of epoxy concrete stickup, thickness 6~8mm steel plate to existing vcehicular tunnel secondary lining;The control explosion design and construction of new highway tunnel excavation: on tunnel crossings on different level top, new highway tunnel excavation carries out control explosion design and construction, maximum allowable vibration velocity < 10cm/s of traffic tunnel;Preliminary bracing is carried out in time during new highway tunnel excavation, and carries out strengthening segment construction: being had 30~40m range above vcehicular tunnel and is being planned that 60~80m range carries out top new highway tunnel strengthening segment secondary lining reinforced concrete inverted arch stringer combination structure above vcehicular tunnel.Be conducive to improve existing vcehicular tunnel stress, and be conducive to avoid planning highway tunnel construction risk and rectifying plan vcehicular tunnel stress.

Description

A plurality of intersection mountain ridge road and rail Tunnel Design construction method

Technical field

The invention belongs to the construction method fields such as the mountain ridge, highway, railway, tunnel, have and are related to a plurality of intersection mountain ridge highway Design of Railway Tunnel construction method.

Background technique

China's comprehensive traffics such as highway, railway development at this stage is very fast, and mountain highway railway tunnel crossings on different level phenomenon increases It is more, when massif geology is general and closely intersects, how to handle the construction of a plurality of intersection mountain ridge road and rail Tunnel Design and ask Topic? it is just avoided that new highway the risk of tunnel construction and improves operation vcehicular tunnel stress, a plurality of intersection mountain ridge road and rail Tunnel Design construction method is exactly to be unfolded around this target.

Summary of the invention

The present invention is easy to ignore stratum for existing mountain ridge road and rail tunnel crossings on different level processing method and tunnel is mutual The structure mechanics analysis of effect lacks macro qualitative analysis control method, provides and a kind of a plurality of intersects the mountain ridge, highway, railway, tunnel Construction method.

The technical solution adopted by the present invention to solve the technical problems is: a kind of a plurality of intersection mountain ridge road and rail tunnel Design and construction method, includes the following steps:

(1) technology and substance prepare before tunnel cross passes through:

The secondary lining pre-add of existing vcehicular tunnel is carried out in strict accordance with Tunnel Design job specfication and shotfiring safety regulation Gu and new highway Tunnel Blasting and supporting construction safety etc. technologies and substance preparation, make entire construction teams and tunnel object Matter prepares to be in good state;

(2) have vcehicular tunnel secondary lining pre-reinforcement:

Within the scope of the longitudinal 60~70m of existing vcehicular tunnel secondary lining of tunnel crossings on different level lower part, every 50~ 100cm pastes wide 20cm, on thickness 6~8mm steel plate to existing vcehicular tunnel secondary lining using MPC glue or epoxy concrete, right Existing vcehicular tunnel secondary lining carries out pre-reinforcement, prevents the adverse effect of new highway tunnel strengthening segment blast working;

(3) new highway tunnel excavation control explosion design and construction:

On tunnel crossings on different level top, new highway tunnel excavation carries out control explosion design and construction, according to " shotfiring safety Regulation ", maximum allowable vibration velocity < 10cm/s of traffic tunnel, COMPREHENSIVE CALCULATING the result shows that: it is new on existing vcehicular tunnel top Build before and after vcehicular tunnel strengthening segment in each 15m (i.e. 60~70m) range, planning vcehicular tunnel intersect within the scope of 60~70m with The full face tunneling of 1.0m drilling depth or 1.5m drilling depth bench excavation, the control of single hop dose meet above-mentioned requirements in 5kg;

(4) preliminary bracing is carried out in time during new highway tunnel excavation, and carry out strengthening segment construction:

New highway tunnel 1.0~2.0m of every excavation in top just carries out preliminary bracing in time, it is ensured that top new highway tunnel Road adjoining rock stability carries out new highway Tunnel Second Lining in the case of closely following preliminary bracing by regulation;

Having 30~40m range above vcehicular tunnel and is planning that it is new to carry out top for 60~80m range above vcehicular tunnel Build vcehicular tunnel strengthening segment secondary lining reinforced concrete inverted arch stringer combination structure;

(5) operation tunnel monitors:

On top new highway tunnel strengthening segment intersect 60~70m range construction period and planning vcehicular tunnel intersect 60~ 70m range construction period needs to be monitored operation tunnel structure safely;

According to calculated result, Blast Vibration Monitoring is taken to operation tunnel structure;Operation tunnel intersects 60~70m model It encloses, secondary liner structure presses 5 measuring points of normative arrangement every 20m, if the vibration that operation tunnel secondary liner structure monitors Speed>5cm/s, newly built tunnels construction should take buffer blasting measure, i.e. reduction tunnel excavation drilling depth<1.0m, reduce single hop Dose < 5kg.

Preferably, in the step (3) traffic tunnel maximum allowable vibration velocity < 5cm/s.

Beneficial effects of the present invention are mainly manifested in: 1) being conducive to improve existing vcehicular tunnel stress, and be conducive to keep away Planning-free highway tunnel construction risk and rectifying plan vcehicular tunnel stress.

Detailed description of the invention

Fig. 1 is three crossing roads tunnel diagrammatic cross-sections of the invention;

Fig. 2 is existing vcehicular tunnel secondary lining pre-reinforcement diagrammatic cross-section of the invention;

Fig. 3 is new highway tunnel strengthening segment secondary lining reinforced concrete inverted arch stringer combination structural representation of the invention Figure.

Specific embodiment

Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.

Embodiment 1:(1) tunnel cross passes through preceding technology and substance prepares

Existing vcehicular tunnel secondary lining pre-reinforcement is carried out in strict accordance with Tunnel Design job specfication and shotfiring safety regulation With technologies and the substance preparation such as new highway Tunnel Blasting and supporting construction safety, make entire construction teams and tunnel substance Prepare to be in good state.

(2) have vcehicular tunnel secondary lining and carry out pre-reinforcement

Have within the scope of the longitudinal 60~70m of vcehicular tunnel secondary lining in tunnel crossings on different level lower part, every 50~ 100cm pastes wide 20cm, on thickness 6~8mm steel plate to existing vcehicular tunnel secondary lining using MPC glue or epoxy concrete, right Existing vcehicular tunnel secondary lining carries out pre-reinforcement, prevents the adverse effect of new highway tunnel strengthening segment blast working.

(3) new highway tunnel excavation control explosion design and construction

On tunnel crossings on different level top, new highway tunnel excavation carries out control explosion design and construction, according to " shotfiring safety Regulation " (GB6722-2011), maximum allowable vibration velocity < 10cm/s of traffic tunnel, operation many years vcehicular tunnel suggestion control Vibration velocity < 5cm/s processed, COMPREHENSIVE CALCULATING the result shows that: it is each before and after existing vcehicular tunnel top new highway tunnel strengthening segment In 15m (i.e. 60~70m) range, planning vcehicular tunnel intersect within the scope of 60~70m with the full face tunneling of 1.0m drilling depth or 1.5m drilling depth bench excavation, the control of single hop dose meet above-mentioned requirements in 5kg.

(4) preliminary bracing is carried out in time during new highway tunnel excavation, and carry out strengthening segment construction

New highway tunnel 1.0~2.0m of every excavation in top just carries out preliminary bracing in time, it is ensured that top new highway tunnel Road adjoining rock stability carries out new highway Tunnel Second Lining in the case of closely following preliminary bracing by regulation;

Having 30~40m range above vcehicular tunnel and is planning that it is new to carry out top for 60~80m range above vcehicular tunnel Build vcehicular tunnel strengthening segment secondary lining reinforced concrete inverted arch stringer combination structure, be conducive to improve existing vcehicular tunnel by Power, and be conducive to avoid planning highway tunnel construction risk and rectifying plan vcehicular tunnel stress.

(5) operation tunnel monitors

On top new highway tunnel strengthening segment intersect 60~70m range construction period and planning vcehicular tunnel intersect 60~ 70m range construction period needs to be monitored operation tunnel structure safely.According to calculated result, need to operation tunnel Structure takes Blast Vibration Monitoring.Operation tunnel intersects 60~70m range or so, and secondary liner structure presses specification cloth every 20m 5 measuring points are set, if vibration velocity > 5cm/s that operation tunnel secondary liner structure monitors, newly built tunnels construction should be taken Buffer blasting measure, i.e. reduction tunnel excavation drilling depth < 1.0m, reduce single hop dose < 5kg.

Claims (2)

1. a kind of a plurality of design and construction method for intersecting mountain ridge road and rail tunnel, which comprises the steps of:
(1) technology and substance prepare before tunnel cross passes through:
In strict accordance with Tunnel Design job specfication and shotfiring safety regulation carry out existing vcehicular tunnel secondary lining pre-reinforcement and Technologies and the substance preparation such as new highway Tunnel Blasting and supporting construction safety, keep entire construction teams and tunnel substance quasi- It is standby to be in good state;
(2) have vcehicular tunnel secondary lining pre-reinforcement:
Within the scope of the longitudinal 60~70m of existing vcehicular tunnel secondary lining of tunnel crossings on different level lower part, every 50~100cm, Wide 20cm is pasted, on thickness 6~8mm steel plate to existing vcehicular tunnel secondary lining using MPC glue or epoxy concrete, to existing public affairs Road Tunnel Second Lining carries out pre-reinforcement, prevents the adverse effect of new highway tunnel strengthening segment blast working;
(3) new highway tunnel excavation control explosion design and construction:
On tunnel crossings on different level top, new highway tunnel excavation carries out control explosion design and construction, according to " shotfiring safety is advised Journey ", maximum allowable vibration velocity < 10cm/s of traffic tunnel, COMPREHENSIVE CALCULATING the result shows that: it is newly-built on existing vcehicular tunnel top Before and after vcehicular tunnel strengthening segment in each 15m (i.e. 60~70m) range, planning vcehicular tunnel intersect within the scope of 60~70m with The full face tunneling of 1.0m drilling depth or 1.5m drilling depth bench excavation, the control of single hop dose meet above-mentioned requirements in 5kg;
(4) preliminary bracing is carried out in time during new highway tunnel excavation, and carry out strengthening segment construction:
New highway tunnel 1.0~2.0m of every excavation in top just carries out preliminary bracing in time, it is ensured that encloses in top new highway tunnel Rock is stablized, and carries out new highway Tunnel Second Lining in the case of closely following preliminary bracing by regulation;
Having 30~40m range above vcehicular tunnel and is planning that 60~80m range carries out the newly-built public affairs in top above vcehicular tunnel Road tunnel strengthening segment secondary lining reinforced concrete inverted arch stringer combination structure;
(5) operation tunnel monitors:
On top, new highway tunnel strengthening segment intersects 60~70m range construction period and planning vcehicular tunnel intersects 60~70m Range construction period needs are monitored safely operation tunnel structure;
According to calculated result, Blast Vibration Monitoring is taken to operation tunnel structure;Operation tunnel intersection 60~70m range, two Secondary liner structure every 20m press 5 measuring points of normative arrangement, if operation tunnel secondary liner structure monitor vibration velocity > 5cm/s, newly built tunnels, which are constructed, take buffer blasting measure, i.e. reduction tunnel excavation drilling depth < 1.0m, and reduction single hop dose < 5kg。
2. a plurality of design and construction method for intersecting mountain ridge road and rail tunnel according to claim 1, which is characterized in that institute State maximum allowable vibration velocity < 5cm/s of traffic tunnel in step (3).
CN201810833334.5A 2018-07-26 2018-07-26 A plurality of intersection mountain ridge road and rail Tunnel Design construction method CN109252873A (en)

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CN201810833334.5A CN109252873A (en) 2018-07-26 2018-07-26 A plurality of intersection mountain ridge road and rail Tunnel Design construction method

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Application Number Priority Date Filing Date Title
CN201810833334.5A CN109252873A (en) 2018-07-26 2018-07-26 A plurality of intersection mountain ridge road and rail Tunnel Design construction method

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101539021A (en) * 2009-04-17 2009-09-23 江苏省交通科学研究院股份有限公司 Road tunnel excavation method
JP4530475B2 (en) * 2000-05-12 2010-08-25 鹿島建設株式会社 Reinforcement structure of tunnel lining using variable section segments.
JP4587919B2 (en) * 2005-09-13 2010-11-24 日立造船株式会社 How to construct a junction and junction of shield tunnel
CN103306680A (en) * 2013-03-23 2013-09-18 中铁二院工程集团有限责任公司 Construction method for extending single-track tunnel to multi-track tunnel
CN103375170A (en) * 2013-07-26 2013-10-30 中铁六局集团石家庄铁路建设有限公司 Underground excavation construction deformation control method for three-hole small clear distance tunnel underpass trunk railway
CN106948840A (en) * 2017-05-17 2017-07-14 洛阳理工学院 A kind of method for building new tunnel with old tunnel cross
CN107542470A (en) * 2017-08-30 2018-01-05 中铁三局集团有限公司 Existing railway Business Line construction method is worn under the shallow tunnel of karst broken region

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4530475B2 (en) * 2000-05-12 2010-08-25 鹿島建設株式会社 Reinforcement structure of tunnel lining using variable section segments.
JP4587919B2 (en) * 2005-09-13 2010-11-24 日立造船株式会社 How to construct a junction and junction of shield tunnel
CN101539021A (en) * 2009-04-17 2009-09-23 江苏省交通科学研究院股份有限公司 Road tunnel excavation method
CN103306680A (en) * 2013-03-23 2013-09-18 中铁二院工程集团有限责任公司 Construction method for extending single-track tunnel to multi-track tunnel
CN103375170A (en) * 2013-07-26 2013-10-30 中铁六局集团石家庄铁路建设有限公司 Underground excavation construction deformation control method for three-hole small clear distance tunnel underpass trunk railway
CN106948840A (en) * 2017-05-17 2017-07-14 洛阳理工学院 A kind of method for building new tunnel with old tunnel cross
CN107542470A (en) * 2017-08-30 2018-01-05 中铁三局集团有限公司 Existing railway Business Line construction method is worn under the shallow tunnel of karst broken region

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