CN105839671A - Floating layer structure of dock bottom of dry dock of immersed tube tunnel - Google Patents

Floating layer structure of dock bottom of dry dock of immersed tube tunnel Download PDF

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Publication number
CN105839671A
CN105839671A CN201610339541.6A CN201610339541A CN105839671A CN 105839671 A CN105839671 A CN 105839671A CN 201610339541 A CN201610339541 A CN 201610339541A CN 105839671 A CN105839671 A CN 105839671A
Authority
CN
China
Prior art keywords
dock
immersed tube
plain concrete
floating layer
tube tunnel
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
CN201610339541.6A
Other languages
Chinese (zh)
Inventor
万义辉
邓建新
朱世友
柯斌
章勇
贺维国
蔡建中
王海龙
邢永辉
黄家成
万超
张伟
李海霞
曾珂
唐健
王东伟
戴新
张瑞
李广涛
石刘
柯友华
褚凯
何毅
彭再勇
李志军
王秋林
刘卫
杨国胜
孙超
曾支明
胡斌
邹普华
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.)
Nanchang Municipal Public Investment Holding Co Ltd
China Railway Tunnel Group Co Ltd CRTG
CRTG Survey and Design Institute Co Ltd
Original Assignee
Nanchang Municipal Public Investment Holding Co Ltd
China Railway Tunnel Group Co Ltd CRTG
CRTG Survey and Design Institute 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 Nanchang Municipal Public Investment Holding Co Ltd, China Railway Tunnel Group Co Ltd CRTG, CRTG Survey and Design Institute Co Ltd filed Critical Nanchang Municipal Public Investment Holding Co Ltd
Priority to CN201610339541.6A priority Critical patent/CN105839671A/en
Publication of CN105839671A publication Critical patent/CN105839671A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/063Tunnels submerged into, or built in, open water
    • E02D29/073Tunnels or shuttering therefor assembled from sections individually sunk onto, or laid on, the water-bed, e.g. in a preformed trench

Abstract

The invention belongs to the field of municipal tunnel design and particularly relates to a floating layer structure of the dock bottom of a dry dock of an immersed tube tunnel. The floating layer structure of the dock bottom of the dry dock of the immersed tube tunnel is characterized in that the floating layer structure comprises plain concrete slabs and connection rebars; the plain concrete slabs are distributed in blocks to form a face layer of the floating layer; a water guiding groove is formed between every two adjacent plain concrete slabs; the connection rebars penetrate the water guiding grooves to connect the adjacent plain concrete slabs together; and the water guiding grooves are filled with coarse sand or gravels. The floating layer structure of the dock bottom of the dry dock of the immersed tube tunnel is simple in structure and convenient to construct, the flatness of the dock bottom is greatly improved on the premise that it is guaranteed that tube joints smoothly float, tube joint manufacturing precision is guaranteed, and damage caused by the repeated water entering and draining process to the floating layer of the dock bottom can be prevented.

Description

A kind of immersed tube tunnel dry-docking dock bottom floating Rotating fields
Technical field
The invention belongs to municipal tunnel design field, particularly relate to a kind of immersed tube tunnel dry-docking dock bottom floating Rotating fields.
Background technology
Dry-docking is as the prefabricated place of immersed tube tube coupling, and its construction scale is big, investment is high, to the immersed tube tunnel completion time of project with make Valency impact is big, is one of important factor in order of building of immersed tube tunnel.The prefabricated required precision in dry-docking of immersed tube tube coupling is high, dry-docking The flatness of dock bottom typically cannot be greater than 5mm, when immersed tube tube coupling is prefabricated complete after, the floating of tube coupling need to be carried out, for ensure tube coupling Manufacture precision and smooth floating, floating Rotating fields is typically set in dry-docking dock bottom.
Existing dry-docking plays floating layer and typically uses glued board+metalling design.It is low, fragile that floating layer intensity is played in glued board dock bottom Damage, anti-adsorption capacity is poor, fire hazardous and rubble dock bottom are played floating layer levelling of the land degree and be difficult to ensure that, dry-docking typically needs in addition Repeating out the prefabricated tube coupling of depressed place transportation by driving tube coupling and envelope depressed place, when this process enters draining repeatedly, glued board and metalling are fragile, repair difficulty Degree is big.
For ensureing the prefabricated precision of tube coupling and preventing repeatedly entering drainage procedure dock bottom is risen the destruction of floating layer, the present invention carries Go out a kind of new floating Rotating fields.
Summary of the invention
It is an object of the invention to for above-mentioned prior art, propose a kind of immersed tube tunnel dry-docking dock bottom and play the floating layer side of setting Method, this floating Rotating fields form is simple, easy construction;Under ensureing tube coupling smooth floating premise, substantially increase dock bottom smooth Degree and foundation bearing capacity;Can prevent repeatedly entering drainage procedure and dock bottom is risen the destruction of floating layer, economic benefit is good.
The technical solution adopted in the present invention is:
A kind of immersed tube tunnel dry-docking dock bottom floating Rotating fields, it is characterised in that include plain concrete plate, connect reinforcing bar, described element Concrete slab is that block distribution forms floating aspect layer, is provided with guiding gutter, described company between adjacent described plain concrete plate Connect reinforcing bar to be linked together by adjacent plain concrete plate through described guiding gutter, in described guiding gutter, fill out coarse sand or rubble.
Described plain concrete plate transversely with longitudinal piecemeal.
Described plain concrete plate carries out access slot process.
The thickness of described plain concrete plate is 80-120mm.
The more munificent degree of described plain concrete plate is 100mm.
The setting of described guiding gutter is spaced apart 3-7m, and more excellent width is 80-120mm.
The more excellent setting of described guiding gutter is spaced apart 5m, and more excellent width is 100mm.
The thickness of described coarse sand or rubble is 100mm.
The invention have the benefit that
1, a kind of immersed tube tunnel dry-docking dock bottom floating Rotating fields of the present invention, overcoming tradition dry-docking dock bottom, to play floating layer fragile, Repair the shortcomings such as difficulty is big, can prevent dry-docking from repeatedly entering drainage procedure and dock bottom is risen the destruction of floating layer, it is achieved play the repetition of floating layer Utilizing, economic benefit is good;
2, a kind of immersed tube tunnel dry-docking dock bottom floating Rotating fields of the present invention, relatively conventional floating layer flatness and foundation bearing capacity More excellent, the prefabricated precision of tube coupling is high, and version is simple, easy construction;
3, the present invention is under ensureing tube coupling smooth floating premise, substantially increases dock bottom flatness and foundation bearing capacity.
Accompanying drawing explanation
Fig. 1 is substrate position profile under pipeline section in the structure of immersed tube tunnel dry-docking dock bottom in the present invention;
Fig. 2 is substrate position profile under non-pipeline section in the structure of immersed tube tunnel dry-docking dock bottom in the present invention;
Fig. 3 is to play floating layer position profile in the structure of immersed tube tunnel dry-docking dock bottom in the present invention;
Fig. 4 is to play floating layer bit plane figure in the structure of immersed tube tunnel dry-docking dock bottom in the present invention.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
In figure, 1, stone or rock slag underlayment;2, inverted filter;3, concrete cushion;4, medium graded broken stone;5, floating layer is played;6、 Filter pipe;7, guiding gutter;8, coarse sand or rubble;9, reinforcing bar is connected;10, plain concrete plate;11, gutter.Embodiment 1
Immersed tube tunnel dry-docking dock bottom structure as shown in Figures 1 to 4 comprise under substrate position under pipeline section, non-pipeline section substrate position and Play floating layer position;As illustrated in fig. 1 and 2, under pipeline section, under substrate position and non-pipeline section, substrate position all includes arranging from bottom to top Stone or rock slag underlayment 1, medium coarse sand inverted filter 2, concrete cushion 3, medium graded broken stone 4 and a floating layer 5;
As shown in Figures 3 and 4, floating Rotating fields, including piecemeal plain concrete plate 10, connect reinforcing bar 9;Plain concrete plate 10 is transversely With longitudinal piecemeal, plain concrete plate 10 forms floating aspect layer, and plain concrete plate 10 carries out access slot process, adjacent plain concrete Being provided with guiding gutter 7 between plate 10, fill out coarse sand or rubble in guiding gutter 7, plain concrete plate 10 is fixed in the one end connecting reinforcing bar 9 Interior and its other end is fixed in adjacent plain concrete plate 10 through guiding gutter 7, so that adjacent plain concrete plate 10 It is connected.
Specifically, stone or rock slag underlayment 1 are placed in the total bottom, and thickness is 130mm;At the bottom of stone or rock slag Being inverted filter 2 in basic unit 1, inverted filter 2 is made up of medium coarse sand, and thickness is 110mm;It is concrete cushion 3 on inverted filter 2, coagulation Soil strength grade is C15, and thickness is 160mm;It is medium graded broken stone 4 on concrete cushion 3, need to be rolled by 120KN roller, Thickness is 340mm;Being floating layer 5 on medium graded broken stone 4, played floating layer 5 and be made up of 80mm thickness piecemeal plain concrete plate 10, element is mixed By Φ 12@3000 bar connecting between concrete board 10 plate and plate, the wide guiding gutter of 80mm 7 is set every 7m, fills out in guiding gutter 7 100mm thickness coarse sand or rubble 8.
Under pipeline section, substrate position inverted filter 2 is inverted trapezoidal structure, and centre is fixed with filter pipe 6.
Embodiment 2
Immersed tube tunnel dry-docking dock bottom structure as shown in Figures 1 to 4 comprise under substrate position under pipeline section, non-pipeline section substrate position and Play floating layer position;As illustrated in fig. 1 and 2, under pipeline section, under substrate position and non-pipeline section, substrate position all includes arranging from bottom to top Stone or rock slag underlayment 1, medium coarse sand inverted filter 2, concrete cushion 3, medium graded broken stone 4 and a floating layer 5;
As shown in Figures 3 and 4, floating Rotating fields, including piecemeal plain concrete plate 10, connect reinforcing bar 9;Plain concrete plate 10 is transversely With longitudinal piecemeal, plain concrete plate 10 forms floating aspect layer, and plain concrete plate 10 carries out access slot process, adjacent plain concrete Being provided with guiding gutter 7 between plate 10, fill out coarse sand or rubble in guiding gutter 7, plain concrete plate 10 is fixed in the one end connecting reinforcing bar 9 Interior and its other end is fixed in adjacent plain concrete plate 10 through guiding gutter 7, so that adjacent plain concrete plate 10 It is connected.
Specifically, stone or rock slag underlayment 1 are placed in the total bottom, and thickness is 150mm;At the bottom of stone or rock slag Being inverted filter 2 in basic unit 1, inverted filter 2 is made up of medium coarse sand, and thickness is 100mm;It is concrete cushion 3 on inverted filter 2, coagulation Soil strength grade is C15, and thickness is 150mm;It is medium graded broken stone 4 on concrete cushion 3, need to be rolled by 120KN roller, Thickness is 320mm;It is floating layer 5 on medium graded broken stone 4, has played floating layer 5 and be made up of 100mm thickness piecemeal plain concrete plate 10, element By Φ 12@3000 bar connecting between concrete slab 10 plate and plate, the wide guiding gutter of 100mm 7 is set every 5m, fills out in guiding gutter 7 100mm thickness coarse sand or rubble 8.
Under pipeline section, substrate position inverted filter 2 is inverted trapezoidal structure, and centre is fixed with filter pipe 6.
Case study material is as follows:
Hong Gu tunnel, Nanchang City is the immersed tube tunnel passing through Ganjiang River, for the inland river runoff immersed tube tunnel of domestic current maximum. The prefabricated dry-docking of tube coupling is positioned at full sandy strata, after using example 2 dock bottom to play floating layer, monitors and follow-up heavy through third party monitoring unit The prefabricated measurement of pipe tube coupling, foundation bearing capacity reaches 180KPa, plays floating layer flatness and existsIn 5mm, the prefabricated precision of tube coupling exists In 10mm, all in the range of design permissible value.
Embodiment 3
Immersed tube tunnel dry-docking dock bottom structure as shown in Figures 1 to 4 comprise under substrate position under pipeline section, non-pipeline section substrate position and Play floating layer position;As illustrated in fig. 1 and 2, under pipeline section, under substrate position and non-pipeline section, substrate position all includes arranging from bottom to top Stone or rock slag underlayment 1, medium coarse sand inverted filter 2, concrete cushion 3, medium graded broken stone 4 and a floating layer 5;
As shown in Figures 3 and 4, floating Rotating fields, including piecemeal plain concrete plate 10, connect reinforcing bar 9;Plain concrete plate 10 is transversely With longitudinal piecemeal, plain concrete plate 10 forms floating aspect layer, and plain concrete plate 10 carries out access slot process, adjacent plain concrete Being provided with guiding gutter 7 between plate 10, fill out coarse sand or rubble in guiding gutter 7, plain concrete plate 10 is fixed in the one end connecting reinforcing bar 9 Interior and its other end is fixed in adjacent plain concrete plate 10 through guiding gutter 7, so that adjacent plain concrete plate 10 It is connected.
Specifically, stone or rock slag underlayment 1 are placed in the total bottom, and thickness is 170mm;At the bottom of stone or rock slag Being inverted filter 2 in basic unit 1, inverted filter 2 is made up of medium coarse sand, and thickness is 90mm;It is concrete cushion 3 on inverted filter 2, concrete Strength grade is C15, and thickness is 140mm;It is medium graded broken stone 4 on concrete cushion 3, need to be rolled by 120KN roller, thick Degree is 300mm;Being floating layer 5 on medium graded broken stone 4, played floating layer 5 and be made up of 120mm thickness piecemeal plain concrete plate 10, element is mixed By Φ 12@3000 bar connecting between concrete board 10 plate and plate, the wide guiding gutter of 120mm 7 is set every 3m, fills out in guiding gutter 7 100mm thickness coarse sand or rubble 8.
Under pipeline section, substrate position inverted filter 2 is inverted trapezoidal structure, and centre is fixed with filter pipe 6.
Above 3 embodiments of the present invention are described in detail, but described content has been only the preferable enforcement of the present invention Example, it is impossible to be considered the practical range for limiting the present invention.All impartial changes made according to the present patent application scope and improvement Deng, within all should still belonging to the patent covering scope of the present invention.

Claims (8)

1. an immersed tube tunnel dry-docking dock bottom floating Rotating fields, it is characterised in that include plain concrete plate, connect reinforcing bar, described Plain concrete plate is that block distribution forms floating aspect layer, is provided with guiding gutter between adjacent described plain concrete plate, described Connect reinforcing bar to be linked together by adjacent plain concrete plate through described guiding gutter, in described guiding gutter, fill out coarse sand or rubble.
A kind of immersed tube tunnel dry-docking dock bottom the most according to claim 1 floating Rotating fields, it is characterised in that: described element coagulation Soil plate transversely with longitudinal piecemeal.
A kind of immersed tube tunnel dry-docking dock bottom the most according to claim 1 floating Rotating fields, it is characterised in that: described element coagulation Soil plate carries out access slot process.
A kind of immersed tube tunnel dry-docking dock bottom the most according to claim 1 floating Rotating fields, it is characterised in that: described element coagulation The thickness of soil plate is 80-120mm.
A kind of immersed tube tunnel dry-docking dock bottom the most according to claim 4 floating Rotating fields, it is characterised in that: described element coagulation The more munificent degree of soil plate is 100mm.
A kind of immersed tube tunnel dry-docking dock bottom the most according to claim 1 floating Rotating fields, it is characterised in that: described guiding gutter Setting be spaced apart 3-7m, more excellent width is 80-120mm.
A kind of immersed tube tunnel dry-docking dock bottom the most according to claim 6 floating Rotating fields, it is characterised in that: described guiding gutter More excellent setting be spaced apart 5m, more excellent width is 100mm.
A kind of immersed tube tunnel dry-docking dock bottom the most according to claim 1 floating Rotating fields, it is characterised in that: described coarse sand or The thickness of rubble is 100mm.
CN201610339541.6A 2016-05-23 2016-05-23 Floating layer structure of dock bottom of dry dock of immersed tube tunnel Pending CN105839671A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610339541.6A CN105839671A (en) 2016-05-23 2016-05-23 Floating layer structure of dock bottom of dry dock of immersed tube tunnel

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Application Number Priority Date Filing Date Title
CN201610339541.6A CN105839671A (en) 2016-05-23 2016-05-23 Floating layer structure of dock bottom of dry dock of immersed tube tunnel

Publications (1)

Publication Number Publication Date
CN105839671A true CN105839671A (en) 2016-08-10

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202577349U (en) * 2012-04-07 2012-12-05 中铁十八局集团有限公司 Large immersed tube tunnel dry dock floor structure
CN203891071U (en) * 2014-05-26 2014-10-22 长安大学 Road structure of immersed tube tunnels
CN204753637U (en) * 2015-04-24 2015-11-11 中交公路规划设计院有限公司 Immersed tube tunnel
JP2016035153A (en) * 2014-08-01 2016-03-17 五洋建設株式会社 Final junction method for submerged tunnel
CN205776358U (en) * 2016-05-23 2016-12-07 南昌市政公用投资控股有限责任公司 A kind of immersed tube tunnel dry-docking dock bottom floating Rotating fields

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202577349U (en) * 2012-04-07 2012-12-05 中铁十八局集团有限公司 Large immersed tube tunnel dry dock floor structure
CN203891071U (en) * 2014-05-26 2014-10-22 长安大学 Road structure of immersed tube tunnels
JP2016035153A (en) * 2014-08-01 2016-03-17 五洋建設株式会社 Final junction method for submerged tunnel
CN204753637U (en) * 2015-04-24 2015-11-11 中交公路规划设计院有限公司 Immersed tube tunnel
CN205776358U (en) * 2016-05-23 2016-12-07 南昌市政公用投资控股有限责任公司 A kind of immersed tube tunnel dry-docking dock bottom floating Rotating fields

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
赵康林等: "南昌红谷沉管隧道干坞坞底施工技术", 《隧道建设》 *

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Application publication date: 20160810