CN102561394B - Method for excavating holes on subway tunnel rail support walls - Google Patents
Method for excavating holes on subway tunnel rail support walls Download PDFInfo
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- CN102561394B CN102561394B CN201210075225.4A CN201210075225A CN102561394B CN 102561394 B CN102561394 B CN 102561394B CN 201210075225 A CN201210075225 A CN 201210075225A CN 102561394 B CN102561394 B CN 102561394B
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Abstract
The invention relates to the field of buildings, in particular to a method for excavating holes on subway tunnel rail support walls, which is characterized by including at least the steps: erecting a temporary underpinning frame on the inner side and the outer side of a hole required area of a wall; excavating the hole required area on the wall; casting beams and columns of an obtained door hole frame after excavation; and removing the temporary underpinning frame. The method has the advantages that the temporary underpinning frame used in the method is simple and reasonable in structure, process is simple, construction period is short, effective support is supplied to track bed structural slabs, safety coefficient is high, and the existing subway station structure is made the best use and not destructed.
Description
Technical field
The present invention relates to building field, be specifically related to a kind of method for excavating holes on subway tunnel rail support walls.
Background technology
Day by day universal at present along with underground railway track traffic, people also more and more rely on underground railway track traffic when trip, and the volume of the flow of passengers also constantly increases.But because part subway is Joint Operation in some underground particular section, so often there is the situation that the stream of people blocks up in the underground Transfer Hall relating to Joint Operation.When capacity is close to saturated, along with the continuous growth of passenger flow in the future, the contradiction of distributing in conllinear section capacity will become increasingly conspicuous, so must transform for underground Transfer Hall.
And in the transformation process of underground Transfer Hall, opening up new transferring passage becomes a new problem.When transforming some specific underground Transfer Hall, need punch to existing support rail wall process, to open up new transferring passage.The method that punches the both at home and abroad overwhelming majority collected at present is the connection between newly-built station main body and accessory structure, and this process is normal civil engineering flow process, all reserved good interface condition, and station is also in work progress, so there is no reference value.And due to the existing solid concrete roabed of support rail wall upper support, its effect is extremely important, so how to punch on existing support rail wall body of wall become a technical barrier.
Summary of the invention
The object of the invention is according to above-mentioned the deficiencies in the prior art part, a kind of method for excavating holes on subway tunnel rail support walls is provided, the extraction of root adopts and underpins framework as the ballast bed structure plate support before the operation that punches temporarily, make the operation of support rail wall digging hole in wall smooth, for the setting increasing passenger passageway afterwards newly is laid a solid foundation.
Realization of the present invention is completed by following technical scheme:
A kind of subway station passage support rail wall digging hole in wall method, for transforming the body of wall of the existing support rail wall of subway station passage, comprise the existing ballast bed structure plate of subway station passage inner top and the subway concourse base plate of bottom, the wall support of described existing support rail wall is on subway concourse base plate, and support described ballast bed structure plate, it is characterized in that: the described method that punches at least comprises following operation: set up respectively underpin framework temporarily in described body of wall need the to punch inside and outside both sides in region; Described body of wall punches the cutting in region; The cast of the newly-increased door opening frame beam column after cutting; Describedly underpin cutting of framework temporarily.
The described framework that temporarily underpins is door frame structure, be made up of door pillar and lintel, two described door pillars are connected and fixed the two ends of supporting described lintel respectively, described ballast bed structure plate described in beam support excessively, described door pillar is supported on described subway concourse base plate, described door pillar, lintel soffit and subway concourse base plate surround a closed area, described in punch that to be positioned at described closed area inner in region.
Described door pillar and described lintel are close to described body of wall will not cut part, underpins between framework be temporarily fixedly connected with in aggregates by some tail trimmers two of the inside and outside both sides of described body of wall.
Described door pillar, lintel and the tail trimmer temporarily underpining framework being arranged in the inside and outside both sides of described body of wall is the integrative-structure of monobloc cast.
By laterally through reinforcing bar is fastening between the described lintel and the body of wall that will not cut of the inside and outside both sides of described body of wall.
Newly-increased door aperture erection after described cutting is placed in the intra-zone that punches, and adopts concreting to complete.
Advantage of the present invention is: use underpin temporarily frame construction advantages of simple, simple process, short construction period and can give existing ballast bed structure plate effective supporting is provided, safety factor is high; Do not affect operational railway traffic operation; Utilize as far as possible and do not destroy existing subway station structure.
Accompanying drawing explanation
Fig. 1 is structural front view of the present invention;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is without tail trimmer place bar planting figure in the present invention;
Fig. 4 has tail trimmer place bar planting figure in the present invention.
Detailed description of the invention
By the following examples feature of the present invention and other correlated characteristic are described in further detail, so that the understanding of technician of the same trade:
As Figure 1-4, number in the figure 1-11 is expressed as: station 1, door pillar 2, lintel 3, passage 4, support rail wall 5, the region 6 that punches, tail trimmer 7, subway concourse base plate 8, ballast bed structure plate 9, reinforcing bar 10, underpin framework 11.
Embodiment: the present embodiment is realized by following steps:
1) underpin the erection of framework: as shown in Figure 1, 2, punch the in advance inside and outside both sides erection in region 6 of existing support rail wall 5 body of wall of passage 4 underpins framework in 1 AT STATION temporarily.Underpin framework 11 to be made up of the door case type structure of inside and outside both sides, each door case type structure is made up of lintel 3 and the door pillar 2 that is fixed on its two ends, and door pillar 2 is orthogonal with lintel 3.Door pillar 2, lintel 3 are respectively arranged with connecting hole, and two door case type structures of inside and outside both sides are fixedly connected with in aggregates by being arranged on door pillar 2 with the tail trimmer 7 in connecting hole on lintel 3.Tail trimmer 7 bottom surface is parallel with the bottom surface of lintel 3, side is parallel with the side of door pillar 2.The ballast bed structure plate 9 on lintel 3 support channels 4 top, door pillar 2 is supported on subway concourse base plate 8, and supports lintel 3 and the ballast bed structure plate 9 on its top.Two door pillars 2, lintel 3 and subway concourse base plates 8 surround closed area, and it is inner that the region 6 that punches is positioned at above-mentioned closed area.
2) body of wall punch region dig: the required region that punches is dug.When considering the problem such as feasibility, practicality of construction, the size in region of punching generally is support rail wall 5 body of wall of below lintel 3 bottom surface, but also can select according to the requirement of engineering of reality the region 6 that punches being less than the closed area that two door pillars 2 mentioned above, lintel 3 and subway concourse base plate 8 surround, but the region 6 that punches must be inner in closed area.
3) cast of the newly-increased door opening frame beam column after digging: the newly-increased door opening frame beam column in inside, region 6 that punches after cutting, the structure of door opening frame beam column can be identical with the door pillar 2 underpining framework 11, also can adopt other special-shaped door type structures.Newly-increased door opening frame beam column build employing concreting, and in aggregates with lintel 3.
4) underpin cutting of framework: cut the tail trimmer 7 between the door pillar 2 of inside and outside both sides and door pillar 2, lintel 3 will not cut temporarily.
The present embodiment is in the specific implementation: as shown in Figure 3,4, in order to ensure that structure wall that the lintel 3 of structure support rail wall 5 both sides and original part will not cut integrally, effectively bear ballast bed structure plate 9 top vehicle-mounted, by laterally to wearing reinforcing bar 10, connect lintel 3 and support rail wall 5 structure wall of inside and outside both sides.Now, because lintel 3 will not cut after the operation that punches completes, four tail trimmers 7 arranged between two lintels 3 are also retained, so as shown in Figure 4, only need implant reinforcing bar 10 in tail trimmer 7 upper wall body it just can be made to have required bearing strength there being the wall body structure at tail trimmer 7 place; Otherwise, in other parts of lintel 3, then need as shown in Figure 3, overall to wearing reinforcing bar 10, make its fastening formation overall structure, guarantee its have required bearing strength.The dimensional structure of reinforcing bar 10, arrange quantity, mutually between the parameter such as spacing, the bearing strength all needed for reality is selected.
Those skilled in the art are easy to associate: the structure such as size, position of door pillar 2, lintel 3, tail trimmer 7, all determined by functional requirement in construction and structural analysis, dynamic structural analysis is adopted for this type of situation, dynamic structural analysis mainly analyzes door opening and the stress of door case type bracket under dynamic load function in whole punch process and final utilization stage, as the impact etc. of the dynamic structural analysis of support rail wall 5, the load effect opposite house closed-in construction of train.In addition, the door case type structure that door pillar 2 and lintel 3 form is inverted U-shaped door case type structure, and this structure also can be selected as required, as arch door type structure etc.
As shown in Figure 2, existing support rail wall 5 upper support ballast bed structure plate 9, bottom is supported by subway concourse base plate 8, is overall orbital region above ballast bed structure plate 9.Passage 4 length between building up station is shorter, but underground obstacle is numerous within the scope of this, and be circuit road bed board and enclosure wall (above hanging numerous pipeline) above it, namely the thinking that punches of support rail wall 5 is: inside and outside support rail wall 5, erection underpins framework 11, existing support rail wall 5 is dug, newly-increased frame beam column is poured into a mould, underpined cutting of framework 11.
Claims (4)
1. a method for excavating holes on subway tunnel rail support walls, for transforming the body of wall of the existing support rail wall of subway station passage, comprise the existing ballast bed structure plate of subway station passage inner top and the subway concourse base plate of bottom, the wall support of described existing support rail wall is on subway concourse base plate, and support described ballast bed structure plate, it is characterized in that: the described method that punches at least comprises following operation: set up respectively underpin framework temporarily in described body of wall need the to punch inside and outside both sides in region; Described body of wall punches the cutting in region; The cast of the newly-increased door opening frame beam column after cutting; Describedly underpin cutting of framework temporarily;
The described framework that temporarily underpins is door frame structure, be made up of door pillar and lintel, two described door pillars are connected and fixed the two ends of supporting described lintel respectively, described ballast bed structure plate described in beam support excessively, described door pillar is supported on described subway concourse base plate, described door pillar, lintel soffit and subway concourse base plate surround a closed area, described in punch that to be positioned at described closed area inner in region;
Described door pillar and described lintel are close to described body of wall will not cut part, underpins between framework be temporarily fixedly connected with in aggregates by some tail trimmers two of the inside and outside both sides of described body of wall.
2. a kind of method for excavating holes on subway tunnel rail support walls according to claim 1, is characterized in that: described door pillar, lintel and the tail trimmer temporarily underpining framework being arranged in the inside and outside both sides of described body of wall is the integrative-structure of monobloc cast.
3. a kind of method for excavating holes on subway tunnel rail support walls according to claim 1 and 2, is characterized in that: by laterally through reinforcing bar is fastening between the described lintel and the body of wall that will not cut of the inside and outside both sides of described body of wall.
4. a kind of method for excavating holes on subway tunnel rail support walls according to claim 1, is characterized in that: the newly-increased door aperture erection after described cutting is placed in the intra-zone that punches, and adopts concreting to complete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210075225.4A CN102561394B (en) | 2012-03-21 | 2012-03-21 | Method for excavating holes on subway tunnel rail support walls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210075225.4A CN102561394B (en) | 2012-03-21 | 2012-03-21 | Method for excavating holes on subway tunnel rail support walls |
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| Publication Number | Publication Date |
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| CN102561394A CN102561394A (en) | 2012-07-11 |
| CN102561394B true CN102561394B (en) | 2015-05-20 |
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| CN201210075225.4A Active CN102561394B (en) | 2012-03-21 | 2012-03-21 | Method for excavating holes on subway tunnel rail support walls |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105735350A (en) * | 2016-03-01 | 2016-07-06 | 上海市政工程设计研究总院（集团）有限公司 | Laterally exposed city underground road structure form |
| CN106120857B (en) * | 2016-06-22 | 2018-06-22 | 上海建工七建集团有限公司 | A kind of connection pipeline construction method |
Citations (4)
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|---|---|---|---|---|
| JP2813807B2 (en) * | 1989-06-08 | 1998-10-22 | 大成建設株式会社 | How to build an underground tunnel |
| CN101148987A (en) * | 2007-11-01 | 2008-03-26 | 中铁隧道勘测设计院有限公司 | Method for employing whole dark digging method to construct underground station transferring point |
| CN101586346A (en) * | 2008-11-10 | 2009-11-25 | 郑州市市政工程总公司 | Method for constructing multi-functional metro interchange station complex |
| CN101831969A (en) * | 2010-05-07 | 2010-09-15 | 华太建设集团有限公司 | Method for opening cave in self-balancing type supporting and load bearing wall body |
-
2012
- 2012-03-21 CN CN201210075225.4A patent/CN102561394B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2813807B2 (en) * | 1989-06-08 | 1998-10-22 | 大成建設株式会社 | How to build an underground tunnel |
| CN101148987A (en) * | 2007-11-01 | 2008-03-26 | 中铁隧道勘测设计院有限公司 | Method for employing whole dark digging method to construct underground station transferring point |
| CN101586346A (en) * | 2008-11-10 | 2009-11-25 | 郑州市市政工程总公司 | Method for constructing multi-functional metro interchange station complex |
| CN101831969A (en) * | 2010-05-07 | 2010-09-15 | 华太建设集团有限公司 | Method for opening cave in self-balancing type supporting and load bearing wall body |
Non-Patent Citations (1)
| Title |
|---|
| 地下连续墙大面积微损开洞施工技术;顾亚囝等;《建筑施工》;20080430;第30卷(第4期);第246-247页3.2节，附图1-2,附图6-7 * |
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| CN102561394A (en) | 2012-07-11 |
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