CN106401592A - Construction method for tunnel boring off-contact sending and receiving platform of up-down overlapped tunnel - Google Patents

Construction method for tunnel boring off-contact sending and receiving platform of up-down overlapped tunnel Download PDF

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Publication number
CN106401592A
CN106401592A CN201610454836.8A CN201610454836A CN106401592A CN 106401592 A CN106401592 A CN 106401592A CN 201610454836 A CN201610454836 A CN 201610454836A CN 106401592 A CN106401592 A CN 106401592A
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CN
China
Prior art keywords
steel
tunnel
plate
shield
longitudinal
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
CN201610454836.8A
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Chinese (zh)
Inventor
谭伟姿
郑卫红
韩明建
鄢伟
苏天斌
李川
王占海
李强
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 18th Bureau Group Co Ltd
Fifth Engineering Co Ltd of China Railway 18th Bureau Group Co Ltd
Original Assignee
China Railway 18th Bureau Group Co Ltd
Fifth Engineering Co Ltd of China Railway 18th Bureau Group 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 18th Bureau Group Co Ltd, Fifth Engineering Co Ltd of China Railway 18th Bureau Group Co Ltd filed Critical China Railway 18th Bureau Group Co Ltd
Priority to CN201610454836.8A priority Critical patent/CN106401592A/en
Publication of CN106401592A publication Critical patent/CN106401592A/en
Pending legal-status Critical Current

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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
    • E21D9/06Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • 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
    • E21D9/12Devices for removing or hauling away excavated material or spoil; Working or loading platforms
    • E21D9/122Working or loading platforms

Abstract

The invention discloses a construction method for a tunnel boring off-contact sending and receiving platform of an up-down overlapped tunnel. The up-down overlapped tunnel comprises an upper tunnel body and a lower tunnel body. When the advancing directions of the upper tunnel body and the lower tunnel body are parallel, the two ends of the up-down overlapped tunnel are provided with tunnel boring vertical wells for sending and receiving of a tunnel boring machine. Each tunnel boring vertical well is provided with a bottom plate, a top plate, a middle support and a counterforce frame supporting middle plate; steel pipe supports are installed on the bottom plate; the tops of the steel pipe supports are sequentially provided with longitudinal double-splicing I-shaped steel and transverse double-splicing I-shaped steel and paved with a high altitude platform built with steel plates and the like; and accordingly the sending and receiving platform of the tunnel boring machine is formed. According to the construction method for the tunnel boring off-contact sending and receiving platform of the up-down overlapped tunnel, the influence of tunnel boring sending or receiving construction on the structure of the vertical wells can be reduced, and the safety of the plate structure is ensured. The construction method for the tunnel boring off-contact sending and receiving platform has very important reference value and practical significance to similar tunnel boring engineering, plate boring sending or receiving during metro interchange, development and utilization of deep and intensive underground spaces and the like.

Description

Make somebody a mere figurehead the construction method originating with receiving platform for upper and lower overlapping tunnel shield
Technical field
The present invention is that a kind of shield is built on stilts to be originated or receiving platform construction method, and specifically one kind is used for 2 shield machines same One shield vertical shaft carries out shield launching, receives the construction method that High Altitude Platform is installed, and belongs to municipal tunnel engineering field.This Method is applied to similar engineering overlapping tunnel shield and construction.
Background technology
It is applied in subway construction with upper and lower overlapping tunnel, 2 shield machines inevitably occur and uses same shield to erect Well carries out the situation originating, receiving, because shield main frame and related corollary equipment always weigh more than 500 tons, and during shield launching On reaction force acts plate in the vertical shaft can the hardened structure of centering safe and offline tunneling shield normal construction adversely affects.
Early stage performs a shield of reaching the standard grade taking the overlapping tunnel of the appearance such as Shenzhen, Beijing in front of offline launching shaft more Starting well, the tunnel reached the standard grade between starting well and offline starting well to avoid 2 shield machines to share one using shallow mining method The situation of shield vertical shaft, or falsework is set up using H profile steel+angle steel (or steel pipe) pour middle plate reserved opening, treat that middle plate reaches Carry out the mode originating or receiving of shield machine of reaching the standard grade again to after design strength.Former approach requires to place, geological conditions High and cost is high, later approach deposits that plate in the structure is pressurized for a long time, to pour after-poppet difficult removes, offline tunneling shield no The shortcomings of method normal construction.
Content of the invention
In order to solve above-mentioned technical problem, a kind of making somebody a mere figurehead for upper and lower overlapping tunnel shield proposed by the present invention originates and receives flat The construction method of platform, it is possible to reduce shield launching or receive the impact to shaft structure for the construction it is ensured that hardened structure safety.Wherein, Up and down overlapping tunnel includes hole tunnel and lower hole tunnel, when the advance parallel with described lower hole tunnel of described upper hole tunnel is moved towards, The two ends of upper and lower overlapping tunnel setting shield vertical shaft be used for shield launching and reception, described shield vertical shaft be provided with base plate, in Portion's support, middle plate and top board, shield is maked somebody a mere figurehead to originate and is constructed as steps described below with receiving platform:
Step one:The base plate of shield vertical shaft fixedly mounts the first steel plate with foundation bolt;
Step 2:Described first steel plate is welded with many setting the first steel pipe supports, multiple first steel pipe supports according to The spacing of 0.8~1.2m × 0.8~1.2m is alignd in machine and transverse direction respectively, then, in the cavity of described first steel pipe support Fill up sand;
Step 3:Contour installation multigroup steel batten plate on all first steel pipe supports, between the first adjacent steel pipe support Two groups of steel batten plates between cross weld channel-section steel, reserve storage battery between the first steel pipe support longitudinal positioned at middle two rows Car transport channel;
Step 4:The top of described first steel pipe support is concordant with the midfoot support of shield vertical shaft, in described shield vertical shaft Portion supports and installs longitudinal Two bors d's oeuveres I-steel, longitudinally in each Two bors d's oeuveres I-steel all with the position often arranging the first longitudinal steel pipe support Corresponding, the top of described longitudinal Two bors d's oeuveres I-steel and described the first longitudinal steel pipe support is fixed;In described longitudinal Two bors d's oeuveres I-shaped Horizontal Two bors d's oeuveres I-steel is welded with steel, the spacing of horizontal Two bors d's oeuveres I-steel is 300mm~800mm.
Step 5:Lay the second steel plate on horizontal Two bors d's oeuveres I-steel;Described second steel plate is carried out shield machine lifting and Assembling;
Step 6:After completing the assembling of shield machine, middle plate on install reaction frame support system;
Step 7:On the base plate of shield vertical shaft and be located at the lower section of described reaction frame support system longitudinal the of one row is installed Two steel pipe supports, weld four road reinforcing bars of differing heights, in the second longitudinal steel pipe support on the second longitudinal steel pipe support A longitudinal Two bors d's oeuveres I-steel is installed at top, lays the 3rd steel plate, clogged with gravity flowing levelling mortar on described longitudinal Two bors d's oeuveres I-steel Space between described 3rd steel plate and the middle plate of shield vertical shaft;So far, terminate construction.
Compared with prior art, the invention has the beneficial effects as follows:
(1), in the present invention, be reserved with battery truck transport channel between steel pipe support, not under the influence of threaded list road goods and materials level fortune Defeated problem.
(2) present invention pass through between the base plate and midfoot support of shield vertical shaft from bottom to top be sequentially arranged steel pipe support, vertical Define the support platform of shield machine to I-steel, horizontal I-steel and covering steel plate, instead of hardened in traditional pouring type Structure, in the design strength to be achieved such as hardened structure in not haveing such problems as to pour, structure, plate is pressurized for a long time.
(3), after the completion of shield tunnel, can directly remove to constitute and support steel plate, I-steel and steel pipe support of platform etc., no There is a problem of that in pouring type, plate supported underneath difficulty is torn open.
(4) construction party of the present invention is that construction can be it is not necessary to need in offline shield to traditional method in a shield vertical shaft A launching shaft of reaching the standard grade is performed in front of structure starting well.
(5) construction method of the present invention is simple to operate, and assembling and disassembling is quick, and the construction period is short, and construction cost is low, safe and reliable Feature.
Brief description
Fig. 1 is overlapping tunnel shield vertical shaft schematic diagram;
Fig. 2 be the present invention originate, receiving platform vertical section schematic diagram;
Fig. 3 be the present invention originate, receiving platform schematic cross section;
Fig. 4 be the present invention originate, receiving platform floor map.
In figure:The upper hole tunnel of 20-, hole tunnel under 30-, 1- first steel plate, 2- foundation bolt, 31- first steel pipe support, 31- Second steel pipe support, 4- steel batten plate, 5- channel-section steel, 6- longitudinal direction Two bors d's oeuveres I-steel, 7- horizontal Two bors d's oeuveres I-steel, 81- second steel plate, 82- the 3rd steel plate, 9- reinforcing bar, 10- longitudinal direction Two bors d's oeuveres I-steel, 11- shield machine, 12- reaction frame and support system, 13- storage battery Car transport channel, 100- base plate, 200- midfoot support, plate in the support of 300- reaction frame, 400- top board.
Specific embodiment
With specific embodiment, technical solution of the present invention is described in further detail below in conjunction with the accompanying drawings, described is embodied as Example only explains to the present invention, not in order to limit the present invention.
Proposed by the present invention a kind of make somebody a mere figurehead, for upper and lower overlapping tunnel shield, the construction method originating with receiving platform, when 2 ground Iron tunnel is as shown in Figure 1 upper and lower overlapping tunnel and includes hole tunnel 20 and lower hole tunnel 30, described upper hole tunnel 20 with When the parallel advance of described lower hole tunnel 30 is moved towards, the two ends of upper and lower overlapping tunnel setting shield vertical shaft be used for shield launching and Receive, shield is maked somebody a mere figurehead to originate or receive and referred to that the midfoot support plate (or other laminate) in shield vertical shaft is above used for shield machine Originate or receive;Described shield vertical shaft is provided with plate 300 during base plate 100, top board 400, midfoot support 200 and reaction frame support, In this construction method, alleged longitudinal direction refers to, parallel to shield direction of advance, laterally refer to perpendicular to shield direction of advance.
The present invention makes somebody a mere figurehead, for upper and lower overlapping tunnel shield, the mentality of designing originating with the construction method of receiving platform:In shield Steel pipe support 31 is installed on the base plate 100 of vertical shaft, at the top of steel pipe support 31, longitudinal Two bors d's oeuveres I-steel and laterally is installed successively Two bors d's oeuveres I-steel and laying steel plate, wait the High Altitude Platform set up, thus constituting the originating of shield machine, receiving platform, such as Fig. 2 Shown, Specific construction step is as follows:
Step one:The base plate 100 of shield vertical shaft fixedly mounts, with foundation bolt 2, the first steel plate 1 that thickness is 20mm;
Step 2:Described first steel plate 1 is welded with many setting Φ 609mm the first steel pipe supports 31, multiple first Steel pipe support 31 is 0.8m~1.2m according to longitudinal pitch, and horizontal spacing is that 0.8m~1.2m arranges, after installation, Sand is filled up in the cavity of described first steel pipe support 31;
Step 3:On all first steel pipe supports 31, the steel batten plate 4 of multigroup 20mm is installed in different contour positions, in phase Between two groups of steel batten plates 4 between the first adjacent steel pipe support 31, No. 16 channel-section steels 5 of cross weld do drawknot, positioned at centre Longitudinal the first steel pipe support 31 of two rows between reserve battery truck transport channel 13, as shown in Figure 3;
Step 4:The top of described first steel pipe support 31 is concordant with the midfoot support 200 of shield vertical shaft, erects in described shield Longitudinal Two bors d's oeuveres I-steel 6, model 45a of this I-steel are installed on the midfoot support 200 of well;Described Two bors d's oeuveres work longitudinally in each Word steel 6 is all corresponding with the position often arranging the first longitudinal steel pipe support 31, described longitudinal Two bors d's oeuveres I-steel 6 with described longitudinal The top of the first steel pipe support 31 is fixed;Described longitudinal Two bors d's oeuveres I-steel 6 is welded with horizontal Two bors d's oeuveres I-steel 7, this work The material model of word steel is 22a, and the spacing of horizontal Two bors d's oeuveres I-steel 7 is 0.3mm~0.8mm, as shown in Figure 4;
Step 5:On horizontal Two bors d's oeuveres I-steel 7, laying depth is second steel plate 81 of 30mm;In described second steel plate 81 On carry out lifting and the assembling of shield machine 11;
Step 6:After completing the assembling of shield machine 11, as shown in Fig. 2 reaction frame is installed on the middle plate 300 of shield vertical shaft Support system 12;
Step 7:And positioned at the lower section of described reaction frame support system 12, a row is installed on the base plate 100 of shield vertical shaft to indulge To the second steel pipe support 32, on the second longitudinal steel pipe support 32 weld differing heights four road Φ 32mm reinforcing bar 9, One longitudinal Two bors d's oeuveres I-steel 10 of model 36A is installed, in described longitudinal Two bors d's oeuveres work at longitudinal the second steel pipe support 32 top On word steel 10, laying depth is the 3rd steel plate 83 of 30mm, clogs described 3rd steel plate 83 with C25 high intensity gravity flowing levelling mortar Space and the middle plate 300 of shield vertical shaft between;So far, complete the construction of platform.
Next shield launching can be carried out, until shield tunnel of reaching the standard grade completes, orderly release from top to bottom is installed afterwards again Platform.
To sum up, construction method of the present invention install on shield shaft floor steel pipe support, longitudinal I-steel, horizontal I-steel, The High Altitude Platform that steel plate etc. is set up, to reduce shield launching or to receive the impact to shaft structure for the construction it is ensured that hardened structure safety.
Although above in conjunction with accompanying drawing, invention has been described, the invention is not limited in above-mentioned specific embodiment, Above-mentioned specific embodiment is only schematically, rather than restricted, and those of ordinary skill in the art is in the present invention Enlightenment under, without deviating from the spirit of the invention, many variations can also be made, these belong to the guarantor of the present invention Within shield.

Claims (1)

1. a kind of make somebody a mere figurehead, for upper and lower overlapping tunnel shield, the construction method originating with receiving platform, wherein, upper and lower overlapping tunnel Including upper hole tunnel (20) and lower hole tunnel (30), before described upper hole tunnel (20) is parallel with described lower hole tunnel (30) When entering to move towards, at the two ends of upper and lower overlapping tunnel, setting shield vertical shaft is used for shield launching and reception, and described shield vertical shaft sets Plate (300) in having base plate (100), top board (400), midfoot support (200) and reaction frame to support is it is characterised in that shield Framework sky originates constructs as steps described below with receiving platform:
Step one:Fixedly mount the first steel plate (1) in the upper foundation bolt (2) of the base plate (100) of shield vertical shaft;
Step 2:First steel pipe support (31) of many settings, multiple first steel are welded with described first steel plate (1) Pipe supports (31) to align respectively in machine and transverse direction according to the spacing of 0.8~1.2m × 0.8~1.2m, then, described first Sand is filled up in the cavity of steel pipe support (31);
Step 3:In the upper contour installation multigroup steel batten plate (4) of all first steel pipe supports (31), in the first adjacent steel Cross weld channel-section steel (5) between two groups of steel batten plates (4) that pipe supports between (31), longitudinal positioned at middle two rows the Battery truck transport channel (13) is reserved between one steel pipe support (31);
Step 4:The top of described first steel pipe support (31) is concordant with the midfoot support (200) of shield vertical shaft, described The midfoot support (200) of shield vertical shaft is upper to install longitudinal Two bors d's oeuveres I-steel (6), longitudinally in each Two bors d's oeuveres I-steel (6) all with The position often arranging longitudinal the first steel pipe support (31) corresponds to, described longitudinal Two bors d's oeuveres I-steel (6) and described longitudinal first The top of steel pipe support (31) is fixed;Described longitudinal Two bors d's oeuveres I-steel (6) is welded with horizontal Two bors d's oeuveres I-steel (7), Laterally the spacing of Two bors d's oeuveres I-steel (7) is 0.3m~0.8m.
Step 5:In horizontal Two bors d's oeuveres I-steel (7) upper laying the second steel plate (81);Enterprising in described second steel plate (81) The lifting of row shield machine (11) and assembling;
Step 6:After completing the assembling of shield machine (11), support system in the upper reaction frame of installing of the middle plate (300) of shield vertical shaft System (12);
Step 7:Upper in the base plate (100) of shield vertical shaft and positioned at described reaction frame support system (12) lower section is installed Longitudinal the second steel pipe support (32) of one row, in the upper four road reinforcing bars welding differing heights of longitudinal the second steel pipe support (32) (9), at longitudinal the second steel pipe support (32) top, one longitudinal Two bors d's oeuveres I-steel (10) is installed, in described longitudinal Two bors d's oeuveres work Word steel (10) is upper to lay the 3rd steel plate (83), is clogged in described 3rd steel plate (83) and shield vertical shaft with gravity flowing levelling mortar Space between plate (300);So far, terminate construction.
CN201610454836.8A 2016-06-17 2016-06-17 Construction method for tunnel boring off-contact sending and receiving platform of up-down overlapped tunnel Pending CN106401592A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107091105A (en) * 2017-05-25 2017-08-25 上海隧道工程有限公司 For realizing aerial steel platform and its construction method that interchange tunnels are continuously constructed
CN108240226A (en) * 2018-02-11 2018-07-03 济南轨道交通集团有限公司 Closely overlapping subway tunnel synchronized construction reserves shield sky and pushes away condition construction method
CN110080787A (en) * 2019-05-13 2019-08-02 中铁第六勘察设计院集团有限公司 Shield is stacked in a kind of Station to miss the stop the construction method of structural shape
CN110374612A (en) * 2019-07-26 2019-10-25 济南轨道交通集团有限公司 It is a kind of applied to the shield machine receiving platform and construction technology that face under dummy status
CN111172819A (en) * 2019-12-25 2020-05-19 中铁隧道集团二处有限公司 Platform for assembling and walking shield trailer and construction method thereof

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CN105332710A (en) * 2015-12-09 2016-02-17 中铁十八局集团第五工程有限公司 Construction method suitable for up-down overlapped tunnel with small clear space and long distance under weak geological condition

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107091105A (en) * 2017-05-25 2017-08-25 上海隧道工程有限公司 For realizing aerial steel platform and its construction method that interchange tunnels are continuously constructed
CN107091105B (en) * 2017-05-25 2019-05-10 上海隧道工程有限公司 The aerial steel platform and its construction method continuously constructed for realizing interchange tunnels
CN108240226A (en) * 2018-02-11 2018-07-03 济南轨道交通集团有限公司 Closely overlapping subway tunnel synchronized construction reserves shield sky and pushes away condition construction method
CN108240226B (en) * 2018-02-11 2019-08-13 济南轨道交通集团有限公司 It closely overlaps the reserved shield sky of subway tunnel synchronized construction and pushes away condition construction method
CN110080787A (en) * 2019-05-13 2019-08-02 中铁第六勘察设计院集团有限公司 Shield is stacked in a kind of Station to miss the stop the construction method of structural shape
CN110374612A (en) * 2019-07-26 2019-10-25 济南轨道交通集团有限公司 It is a kind of applied to the shield machine receiving platform and construction technology that face under dummy status
CN111172819A (en) * 2019-12-25 2020-05-19 中铁隧道集团二处有限公司 Platform for assembling and walking shield trailer and construction method thereof

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