CN205444240U - A superficial layer is played in dry dock dock bottom that is used for immersed tube tunnel tube section to rise to float - Google Patents

A superficial layer is played in dry dock dock bottom that is used for immersed tube tunnel tube section to rise to float Download PDF

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Publication number
CN205444240U
CN205444240U CN201620217739.2U CN201620217739U CN205444240U CN 205444240 U CN205444240 U CN 205444240U CN 201620217739 U CN201620217739 U CN 201620217739U CN 205444240 U CN205444240 U CN 205444240U
Authority
CN
China
Prior art keywords
pipeline
floating
sleeper
dry
dock
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.)
Expired - Fee Related
Application number
CN201620217739.2U
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Chinese (zh)
Inventor
姚怡文
刘春标
杨成春
张伟
田丽君
兰晓强
王秋林
王攭太
汪现伟
陈旺
牛博
乐治胜
张毅
苗立
夏磊
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 Tunnel Group Erchu Co Ltd
Original Assignee
China Railway Tunnel Group Erchu 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 Tunnel Group Erchu Co Ltd filed Critical China Railway Tunnel Group Erchu Co Ltd
Priority to CN201620217739.2U priority Critical patent/CN205444240U/en
Application granted granted Critical
Publication of CN205444240U publication Critical patent/CN205444240U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a superficial layer is played in dry dock dock bottom that is used for immersed tube tunnel tube section to rise to float, characterized by, the basis in dry dock pipe prefabrication district is traded and is filled out into the medium coarse sand loaded filter, lay the concrete cushion on the medium coarse sand loaded filter, arrange check stalk sleeper beam on the concrete cushion, fill graded gravel layer between the check stalk sleeper beam, the vertical water filtering groove who has three equipartitions is opened on every block of plain concrete board to the plain concrete board of graded gravel layer top for building, and it has horizontal water filtering groove to open on the plain concrete board, and the water filtering groove intussuseption is filled with mi shi. The utility model discloses the dock bottom trade fill out the basis on, rise to float metalling between the stalk roof beam of layer with the pipeline section basement to move about freely and quickly on the plain concrete slabs of the superiors to setting up water filtering groove, pack with rice stone, both can satisfy and float layer roughness requirement, can satisfy the pipeline section again and play to float the waterborne requirement, rise the stage of floating at the pipeline section, the back of pouring water in the dry dock, water filtering groove can become into water route, and water can get into the pipeline section bottom rapidly through pipeline section bottom water filtering groove, makes the pipeline section rise to float smoothly.

Description

Floating layer is played for the dry-docking dock bottom of immersed tube tunnel pipeline section floating
Technical field
This utility model relates to a kind of dry-docking dock bottom for immersed tube tunnel pipeline section floating and plays floating layer.
Background technology
At present, in immersed tube tunnel prefabrication of tube section is constructed, dry-docking is immersed tube tunnel prefabrication of tube section, floating Active workings.The single-unit pipeline section weight of immersed tube tunnel pipeline section reaches more than 28000 ton, and the foundation bearing capacity in dry-docking pipe prefabrication region is required height, and foundation bearing capacity must is fulfilled for the deadweight of immersed tube tube coupling and the needs of traffic load;In tube coupling prefabrication process, the ground in pipe prefabrication region must keep uniform settlement, maximum difference settling amount should be not more than 30mm, to avoid causing pipeline section agent structure crack;For ease of pipeline section floating, the absorption affinity between pipeline section and basis, dock bottom end face is the least.Existing dry-docking dock bottom plays that floating layer is difficult to meet pipeline section load, floating crosses the requirement such as aqueous, flatness.
Summary of the invention
The purpose of this utility model is just to provide that a kind of load is big, floating is crossed the dry-docking dock bottom for immersed tube tunnel pipeline section floating that aqueous is good, flatness is high and played floating layer.
Floating layer is played in dry-docking dock bottom for immersed tube tunnel pipeline section floating of the present utility model, it is characterised in that the foundation replacement in dry-docking pipe prefabrication district becomes medium coarse sand loaded filter, arranges tapping pipe along being parallel to pipeline section axis direction in medium coarse sand loaded filter;Concrete cushion is laid on medium coarse sand loaded filter;Press 500-600cm on concrete cushion and arrange 4-6 root lattice stalk sleeper beam, the lattice stalk pre-buried angle steel of sleeper beam end face, it is provided with and connects a batch reinforcing bar between lattice stalk sleeper beam and concrete cushion, connect water-pumping/draining when batch reinforcing bar can prevent later stage pipeline section floating and cause lattice stalk sleeper beam to be peeled off with concrete cushion;25-35cm thickness graded broken stone layer is filled between lattice stalk sleeper beam;Graded broken stone layer is arranged above the plain concrete plate poured, dative stalk sleeper beam upper surface, plain concrete plate upper surface is in same level, three uniform longitudinal drainage traps are had on every block of plain concrete plate, the drainage trap dative stalk sleeper beam of both end of which is connected, a horizontal drainage trap is had every 4-5m on plain concrete plate, laterally drainage trap communicates and vertical with longitudinal drainage trap, is filled with meter Shi in drainage trap.
Floating layer is played in dry-docking dock bottom for immersed tube tunnel pipeline section floating of the present utility model, on the basis of dock bottom is changed and is filled out, pipeline section substrate is risen metalling between floating layer stalk beam and uses " the thick medium graded broken stone (120KN chaser rolls) of 10cm thickness C25 element concrete+30cm " mode, and vertically and horizontally setting is perpendicular to the drainage trap of pipeline section on the superiors' element concrete plate, fill with rice stone, so, both floating layer flatness requirement can have been met, pipeline section floating can be met again and cross aqueous requirement, in the pipeline section floating stage, after pouring water in dry-docking, drainage trap can become into water path, water can be by drainage trap bottom pipeline section, quickly enter bottom pipeline section, make the smooth floating of pipeline section.
Accompanying drawing explanation
Fig. 1 is the dry-docking dock bottom floor map for immersed tube tunnel prefabrication of tube section and floating of the present utility model;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is lattice stalk sleeper beam and concrete cushion connection diagram in Fig. 2;
Fig. 4 is prefabrication of tube section district of the present utility model floor map;
Fig. 5 is partial structurtes schematic diagram in Fig. 2;
1, dry-docking, 2, prefabrication of tube section district, 3, plain concrete plate, 4, lattice stalk sleeper beam, 41, reinforcing bar, 42, connect a batch reinforcing bar, 43, angle steel, 5, drainage trap, 51, longitudinal drainage trap, 52, horizontal drainage trap, 6, graded broken stone layer, 7, concrete cushion, 8, medium coarse sand loaded filter, 9, tapping pipe, 10, meter Shi.
Detailed description of the invention
Floating layer is played in a kind of dry-docking dock bottom for immersed tube tunnel pipeline section floating, it is characterized in that, the foundation replacement in dry-docking pipe prefabrication district 2 becomes medium coarse sand loaded filter 8, medium coarse sand loaded filter 8 arranges tapping pipe 9 along being parallel to pipeline section axis direction, between tapping pipe 9, spacing is 3.5-4m, tapping pipe 9 preferably with the 150 ° of tube walls in diameter of phi 110 top punching pvc pipe and wrapped geotextiles, and along in arrange by 0.5% gradient to both sides;Laying concrete cushion 7, the preferred 15cm thickness C25 concrete of concrete cushion 7 on medium coarse sand loaded filter 8, reinforcing bar is preferably mated formation colligation with φ 12150 monolayer;Press 500-600cm on concrete cushion 7 and arrange 4-6 root lattice stalk sleeper beam 4, lattice stalk sleeper beam 4 preferably uses C30 concrete, reinforcing bar is preferably with HRB335-8 φ 16,2 φ 12 reinforcing bar, stirrup is preferably arranged with HPB330 φ 6.5200, lattice stalk sleeper beam 4 end face pre-buried L50 × 50 angle steel 43, is provided with between lattice stalk sleeper beam 4 and concrete cushion 7 and connects batch reinforcing bar 42;Filling the thick medium grating metalling 6 of 25-35cm between lattice stalk sleeper beam 4,120KN chaser rolls;Graded broken stone layer 6 is arranged above the plain concrete plate 3 poured, dative stalk sleeper beam 4 upper surface, plain concrete plate 3 upper surface is in same level, three uniform longitudinal drainage traps 51 are had on every block of plain concrete plate 3, longitudinal drainage trap 51 dative stalk sleeper beam 4 of both end of which is connected, a horizontal drainage trap 52 is had every 4-5m on plain concrete plate 3, laterally drainage trap 52 communicates and vertical with longitudinal drainage trap 51, drainage trap 5 groove width 10cm × deep 10cm, is filled with 100mm thickness small particle rice stone 10 in drainage trap 5.

Claims (6)

1. one kind is played floating layer for the dry-docking dock bottom of immersed tube tunnel pipeline section floating, it is characterised in that the foundation replacement in dry-docking pipe prefabrication district (2) becomes medium coarse sand loaded filter (8), and the middle edge of medium coarse sand loaded filter (8) is parallel to pipeline section axis direction and arranges tapping pipe (9);Concrete cushion (7) is laid on medium coarse sand loaded filter (8);The upper 500-600cm that presses of concrete cushion (7) arranges 4-6 root lattice stalk sleeper beam (4), the lattice stalk pre-buried angle steel of sleeper beam (4) end face (43), is provided with and connects a batch reinforcing bar (42) between lattice stalk sleeper beam (4) and concrete cushion (7);25-35cm thickness graded broken stone layer (6) is filled between lattice stalk sleeper beam (4);Graded broken stone layer (6) is arranged above the plain concrete plate (3) poured, dative stalk sleeper beam (4) upper surface, plain concrete plate (3) upper surface is in same level, three uniform longitudinal drainage traps (51) are had on every piece of plain concrete plate (3), longitudinal drainage trap (51) dative stalk sleeper beam (4) of both end of which is connected, a horizontal drainage trap (52) is had every 4-5m on plain concrete plate (3), laterally drainage trap (52) communicates and vertical with longitudinal drainage trap (51), is filled with meter Shi (10) in drainage trap (5).
Floating layer is played in dry-docking dock bottom for immersed tube tunnel pipeline section floating the most according to claim 1, it is characterized in that: between described tapping pipe (9), spacing is 3.5-4m, tapping pipe (9) preferably with the 150 ° of tube walls in diameter of phi 110 top punching pvc pipe and wrapped geotextiles, and along in arrange by 0.5% gradient to both sides.
Floating layer is played in dry-docking dock bottom for immersed tube tunnel pipeline section floating the most according to claim 1, it is characterised in that: described concrete cushion (7) preferably 15cm thickness C25 concrete, reinforcing bar is preferably mated formation colligation with φ 12150 monolayer.
Floating layer is played in dry-docking dock bottom for immersed tube tunnel pipeline section floating the most according to claim 1, it is characterized in that: lattice stalk sleeper beam (4) preferably use C30 concrete, HRB335-8 φ 16,2 φ 12 reinforcing bar preferably used by reinforcing bar, and stirrup is preferably arranged with HPB330 φ 6.5200.
Floating layer is played in dry-docking dock bottom for immersed tube tunnel pipeline section floating the most according to claim 1, it is characterised in that: described drainage trap (5) groove width 10cm × deep 10cm.
Floating layer is played in dry-docking dock bottom for immersed tube tunnel pipeline section floating the most according to claim 1, it is characterised in that: described meter Shi (10) particle diameter is 100mm.
CN201620217739.2U 2016-03-22 2016-03-22 A superficial layer is played in dry dock dock bottom that is used for immersed tube tunnel tube section to rise to float Expired - Fee Related CN205444240U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620217739.2U CN205444240U (en) 2016-03-22 2016-03-22 A superficial layer is played in dry dock dock bottom that is used for immersed tube tunnel tube section to rise to float

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620217739.2U CN205444240U (en) 2016-03-22 2016-03-22 A superficial layer is played in dry dock dock bottom that is used for immersed tube tunnel tube section to rise to float

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CN205444240U true CN205444240U (en) 2016-08-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105672358A (en) * 2016-03-22 2016-06-15 中铁隧道集团二处有限公司 Dry dock floor floating layer for immersed tunnel pipe section floating

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105672358A (en) * 2016-03-22 2016-06-15 中铁隧道集团二处有限公司 Dry dock floor floating layer for immersed tunnel pipe section floating

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160810

Termination date: 20200322

CF01 Termination of patent right due to non-payment of annual fee