CN204663535U - City underground π type twin shafts and two transverse passage-way layout system - Google Patents
City underground π type twin shafts and two transverse passage-way layout system Download PDFInfo
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- CN204663535U CN204663535U CN201520278932.2U CN201520278932U CN204663535U CN 204663535 U CN204663535 U CN 204663535U CN 201520278932 U CN201520278932 U CN 201520278932U CN 204663535 U CN204663535 U CN 204663535U
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Abstract
The utility model discloses a kind of city underground π type twin shafts and two transverse passage-way layout system, comprise tunnel center line (1), it is characterized in that: also comprise a vertical shaft (2) and two transverse passage-ways (3); Described vertical shaft (2) tunneling is in tunnel center line (1) side; Described transverse passage-way (2) is communicated with vertical shaft (1) respectively by arc-shaped transition section (3), and transverse passage-way (2) middle part is crossing with tunnel center line (1) at an angle.The utility model structural safety is stablized, and can meet tunneling and shield-tunneling construction simultaneously, be independent of each other.Two transverse passage-ways that vertical shaft and π type are arranged achieve the parallel construction of tunneling and shield structure in narrow range, improve construction speed, efficiency of construction, have saved cost, for later subway vertical shaft and transverse passage-way design, constructing provides reference.
Description
Technical field
The utility model relates to subway work field, particularly relates to a kind of city underground π type twin shafts and two transverse passage-way layout system.
Background technology
Under existing situation, domestic subway construction develop rapidly, but due to subway construction be in city, be different from the construction of other railways, highway, construction plant scope is little and must not to affect traffic be the difficult problem that subway construction needs to overcome all the time, and main equipment such for shield machine is widely used in subway construction.Extremely difficult especially to solution problems, when especially the interval station, two ends of shield structure cannot meet shield launching or condition of acceptance, these problems seem particularly outstanding.
Subway construction is in city mostly, and the impact of the factor such as the hydraulic character at, station little by construction plant scope, constrains subway work progress.For accelerating the interval construction speed between subway station, generally near interval circuit, arrange vertical shaft, and by transverse passage-way and main track connection, to meet construction and excavation, unearthed, equipment lifts up into or hangs out and the construction space requirement of transport of materials etc.As shown in Figure 1, its traditional layout is generally vertical shaft and is positioned at circuit side, the form that transverse passage-way axis is orthogonal with line direction: this arrangement form is that Subway Tunnel adds work plane, avoid to a certain extent and affect traffic, also subway construction is accelerated, but mechanized construction degree is still low, and when especially using shield construction, its unearthed efficiency is subject to serious restriction.
Utility model content
Technical problem to be solved in the utility model is: providing a kind of city underground π type twin shafts and two transverse passage-way layout system, can meet starting and receiving requirement of shield machine in the space among a small circle when not affecting traffic.
Technical problem to be solved in the utility model is achieved through the following technical solutions:
A kind of city underground π type twin shafts and two transverse passage-way layout system, comprise tunnel center line, it is characterized in that: also comprise a vertical shaft and two transverse passage-ways; Described vertical shaft tunneling is provided with one mid-board in vertical shaft centre position, center line side, tunnel, and bottom communicates; Described vertical shaft both sides are communicated with transverse passage-way respectively by arc-shaped transition section, crossing with tunnel center line at an angle in the middle part of transverse passage-way.Through spatial simulation, design code transverse passage-way and main track tunnel are 45° angle oblique, and the setting of this angle mainly meets shield machine when entering main track tunnel by transverse passage-way and to turn the requirement of operation to space.
Described layout entire system is π type, and a vertical shaft is arranged at center line side, tunnel, two transverse passage-way symmetries be located at vertical shaft both sides.
Described tunnel center line comprises two parallel tunnel lines, and the transverse passage-way of homonymy and two tunnel center lines are crossing and make Seal treatment at transverse passage-way end with equal angular.
Described vertical shaft is rectangle, and corner arranges steel concrete and tiltedly drags, and strengthens corner stressed, and be divided into two frameworks by mid-board in the middle of described vertical shaft, described two framework bottoms communicate; Described vertical shaft is longitudinally divided into five layers, and interlayer adopts hands over the segmentation of ring beam.
The section main track place of punching, the intersection periphery of described transverse passage-way and tunnel center line is provided with strengthened ring beam.
Described tunnel center line is divided into upper and lower two, and every bar tunnel center line is divided into again standard paragraphs and the tunneling section at middle part, is also provided with expanding reach on the left of described tunnel center line.
The technique effect that the utility model adopts technique scheme to have is:
The utility model structural safety is stablized, and can meet tunneling and shield-tunneling construction simultaneously, be independent of each other.Two transverse passage-ways that vertical shaft and π type distribute achieve the parallel construction of tunneling and shield structure in narrow range, improve construction speed, efficiency of construction, have saved cost, for later subway vertical shaft and transverse passage-way design, constructing provides reference.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail
Fig. 1 is conventional vertical shaft transverse passage-way and circuit orthogonal plane arrangement diagram
Fig. 2 is the utility model layout plan
Fig. 3 is vertical shaft sectional side elevation
Fig. 4 is twin shafts plan view
Wherein, 1-tunnel center line, 2-vertical shaft, 3-transverse passage-way, 4-changeover portion, 5-mid-board, 6-standard paragraphs, 7-tunneling section, 8-expanding reach
Detailed description of the invention
A kind of city underground π type twin shafts as shown in Figure 2 and two transverse passage-way layout system, comprise tunnel center line 1, it is characterized in that: also comprise a vertical shaft 2 and two transverse passage-ways 3; The open cut of described vertical shaft 2 is in tunnel center line 1 side; Vertical shaft 1 both sides are communicated with transverse passage-way 3 respectively by arc-shaped transition section 4, crossing with tunnel center line 1 at an angle in the middle part of transverse passage-way 3.This layout system synthesis considers transverse passage-way 3 and arranges the functional requirement that need meet shield launching and tunneling parallel construction, in vertical shaft 2 both sides, a transverse passage-way 3 is respectively set, two transverse passage-ways 3 are π type with main track Skew Tunnel respectively, build after construction completes at transverse passage-way 3, can main track constructing tunnel be carried out.
Layout entire system is π type, vertical shaft 2 near with tunnel center line 1 side, article two, transverse passage-way 3 symmetry be located at vertical shaft 2 both sides, two transverse passage-ways that vertical shaft and π type are arranged achieve the parallel construction of tunneling and shield structure in narrow range, improve construction speed.
Tunnel center line 1 comprises two parallel tunnel lines, and the transverse passage-way 3 of homonymy and two tunnel center lines 1 are crossing and make Seal treatment at transverse passage-way 3 end with equal angular.Transverse passage-way design need meet the requirement of the following aspects: the movement requirement 1) meeting shield launching; 2) can as the scope of operation of tunneling section; 3) operability and the construction period of vertical shaft adit construction is possessed.
As tunneling section construction shaft again as launching shaft, the boring construction cycle is longer, there is crossed construction operation, the Main Function of vertical shaft in later stage and shield structure: 1) meet tunneling and the parallel operations simultaneously of shield structure, do not interfere with each other; 2) as the transport channel (transport section of jurisdiction and mortar) in shield launching process; 3) later stage doublely does service channel and pump house.Vertical shaft of the present utility model 2 is as shown in Figure 3 and Figure 4 rectangle, corner arranges steel concrete and tiltedly drags, strengthen corner stressed, described vertical shaft 2 is longitudinally divided into five layers, interlayer adopts hands over the segmentation of ring beam, according to the difference that formation variation affects shaft structure, design floor height is respectively 4.82m, 4.5m, 5.51m, 9.39m, 1.75m from the top down.Needed for shield launching lifting and shaft hoisting system, the vertical shaft set by requirement of working space and boring construction can ensure the utilization rate of plant equipment, cost-saving, convenient construction.
Layout system of the present utility model needs at the enterprising one-step optimization of structure design: be included in transverse passage-way intersection section and adopt the construction of CRD engineering method, arrange strengthened ring beam to the section main track place of punching, the intersection periphery of transverse passage-way 3 and tunnel center line 1; Meanwhile, after intersection section lining cutting terminates, carry out the measures such as tunnel main track excavation construction on request ensure safety for tunnel engineering.
Construction method of the present utility model is: first carry out shaft structure construction, carry out No. 1, No. 2 adit constructions afterwards, then standard paragraphs, the construction of expanding reach bored tunnel is carried out, between expanding reach bored tunnel, two transverse passage-ways after standard paragraphs bored tunnel, No. 2 transverse passage-way east side 50m constructing tunnels, first carry out right line shield machine kludge tunneling construction; After right line tunnel piercing 100 ring, carry out left line shield machine kludge tunneling construction.Wherein, two shield machines all carry out lifting into well at vertical shaft western entrance, by No. 1 transverse passage-way, and finally enter shield structure expanding reach tunnel after transverse passage-way and main track tunnel cross mouth place rotate; First cutterhead, anterior shield, middle shield are lifted well and be placed on translating carriage during lifting, move to after being assembled into an entirety in expanding reach tunnel, afterwards tail shield is lifted vertical shaft to be placed on translating carriage and to move in expanding reach tunnel, finally conveying worm handling is moved in expanding reach tunnel, complete the assembling of whole shield structure.
It should be noted that above-mentioned detailed description of the invention of the present utility model only for exemplary illustration or explain principle of the present utility model, and do not form restriction of the present utility model.Therefore, any amendment made when not departing from spirit and scope of the present utility model, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.In addition, the utility model claims be intended to contain fall into claims scope and border or this scope and border equivalents in whole change and amendment.
Claims (7)
1. city underground π type twin shafts and a two transverse passage-way layout system, comprise tunnel center line (1), it is characterized in that: also comprise a vertical shaft (2) and two transverse passage-ways (3); Described vertical shaft (2) tunneling is in tunnel center line (1) side; Described vertical shaft (1) both sides are communicated with transverse passage-way (3) respectively by arc-shaped transition section (4), transverse passage-way (3) middle part and tunnel center line (1) oblique.
2. city underground π type twin shafts according to claim 1 and two transverse passage-way layout system, it is characterized in that: described layout entire system is π type, vertical shaft near with tunnel center line (1) side, what two transverse passage-ways (3) were symmetrical is located at vertical shaft (2) both sides.
3. city underground π type twin shafts according to claim 1 and two transverse passage-way layout system, it is characterized in that: described tunnel center line (1) comprises two parallel tunnel lines, the transverse passage-way (3) of homonymy is crossing with 45° angle degree with two tunnel center lines (1), and makes Seal treatment at transverse passage-way (3) end.
4. city underground π type twin shafts according to claim 1 and two transverse passage-way layout system, is characterized in that: described vertical shaft (2) is rectangle, and corner arranges steel concrete and tiltedly drags; Described vertical shaft (2) is longitudinally divided into multilayer.
5. city underground π type twin shafts according to claim 1 and two transverse passage-way layout system, is characterized in that: described transverse passage-way (3) is provided with strengthened ring beam with the section main track place of punching, the intersection periphery of tunnel center line (1).
6. city underground π type twin shafts according to claim 2 and two transverse passage-way layout system, is characterized in that: be divided into two frameworks by mid-board (5) in the middle of described vertical shaft (2), described two framework bottoms communicate; Described vertical shaft (2) is longitudinally divided into five layers, and interlayer adopts hands over the segmentation of ring beam.
7. city underground π type twin shafts according to claim 2 and two transverse passage-way layout system, it is characterized in that: described tunnel center line (1) is divided into upper and lower two, every bar tunnel center line (1) is divided into again standard paragraphs (6) and the tunneling section (7) at middle part, and left side, described tunnel center line (1) is also provided with expanding reach (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520278932.2U CN204663535U (en) | 2015-04-30 | 2015-04-30 | City underground π type twin shafts and two transverse passage-way layout system |
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| CN201520278932.2U CN204663535U (en) | 2015-04-30 | 2015-04-30 | City underground π type twin shafts and two transverse passage-way layout system |
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| CN204663535U true CN204663535U (en) | 2015-09-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818994A (en) * | 2015-04-30 | 2015-08-05 | 中铁二十二局集团第一工程有限公司 | Urban subway n-shaped double-shaft and double transverse passage plane arrangement system |
| CN106593454A (en) * | 2017-01-25 | 2017-04-26 | 北京市市政工程设计研究总院有限公司 | Shield side original tunneling construction method and structure combined with subsurface excavated construction of original well and hoisting well |
| CN107905801A (en) * | 2017-12-19 | 2018-04-13 | 中冶京诚工程技术有限公司 | shield pipe gallery system and construction method thereof |
-
2015
- 2015-04-30 CN CN201520278932.2U patent/CN204663535U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818994A (en) * | 2015-04-30 | 2015-08-05 | 中铁二十二局集团第一工程有限公司 | Urban subway n-shaped double-shaft and double transverse passage plane arrangement system |
| CN106593454A (en) * | 2017-01-25 | 2017-04-26 | 北京市市政工程设计研究总院有限公司 | Shield side original tunneling construction method and structure combined with subsurface excavated construction of original well and hoisting well |
| CN107905801A (en) * | 2017-12-19 | 2018-04-13 | 中冶京诚工程技术有限公司 | shield pipe gallery system and construction method thereof |
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