CN104033162B - A kind of heating power shield tunnel guiding trestle - Google Patents
A kind of heating power shield tunnel guiding trestle Download PDFInfo
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- CN104033162B CN104033162B CN201410314562.3A CN201410314562A CN104033162B CN 104033162 B CN104033162 B CN 104033162B CN 201410314562 A CN201410314562 A CN 201410314562A CN 104033162 B CN104033162 B CN 104033162B
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Abstract
The invention provides a kind of heating power shield tunnel guiding trestle, its distribution is arranged on tunnel inner wall, comprise continuous print two ring prefabricated reinforced concrete section of jurisdiction, inner lining steel strip is provided with inside section of jurisdiction described in every ring, the interior plate face shape of described inner lining steel strip outer panel face shape and described section of jurisdiction is suitable, the outside of described inner lining steel strip is uniformly distributed dowel in order to interfix, and is provided with the guiding trestle column in order to support confession, water return pipeline inside the steel plate strip of adjacent two ring prefabricated reinforced concrete sections of jurisdiction.The present invention can ensure that heat distribution pipeline is according to axial direction displacement heating power shield tunnel guiding trestle, and it effectively supports again axis or the side direction horizontal thrust of tunnel inner wall generation simultaneously.
Description
Technical field
The invention belongs to tunnel pipelines technical field, particularly a kind of heating power shield tunnel guiding trestle.
Background technology
Along with the development in China city, central heating becomes the important way of urban heat supplying, builds heating-power tunnel and concentrates the preferred manner of settling heating pipeline to become city central heating.But because the urban ground space of China is mostly comparatively valuable, and the underground space also gradually by after the exploitation of various uses close to saturated, available space is to the utmost be limited, develop second layer space become current heating-power tunnel construction necessary faced by important topic.
There is many limiting factors in the main construction method of current heating-power tunnel----shallow burial hidden digging, the needs of the city thermal engineering construction of China can not be met, aging along with old heat distribution pipeline, and the layout demand of new heat distribution pipe network, within a period of time, in city, will constantly there is the heating-power tunnel needing excavation.For the ease of the exploitation of its underground space in the future, shield method is more and more applied to the excavation of heating-power tunnel, heating power shield tunnel is advanced at deep under ground by Shield-type machinery, prevent toward caving in tunnel by shield structure shell and section of jurisdiction supporting surrounding country rock, carry out soil excavation at excavation face front topping machanism simultaneously, transport outside hole by unearthed machinery, form a kind of mechanized construction method of tunnel structure.Compared with traditional shallow burial hidden digging, it is fast that shield method has speed of application, and labour intensity is low, does not affect traffic above-ground and facility, and the construction operation degree of depth does not affect the advantages such as facility such as existing underground utilities comparatively deeply simultaneously.
In current heating power shield tunnel is built, basic elder generation digs out dark hole by shield machine at deep under ground, then the annular section of jurisdiction suitable with dark hole dia by being spliced into forms the tunnel that can hold heating power confession, water return pipeline, the now outermost layer barrier in Ze Shi tunnel, annular section of jurisdiction, carries the effect of opposing earth pressure, groundwater pressure and some special loads.And the permanent lining, secondary lining structure of annular section of jurisdiction, be directly connected to total quality and the safety in tunnel, affect water resistance and the endurance quality of heating power shield tunnel.
Be typically provided with the guiding trestle that can penetrate heat distribution pipeline in existing heating power shield tunnel, guiding trestle makes pipeline can only the support of movement vertically, and stop the rotation because moment of flexure or moment of torsion cause.Reason due to structure often has the effect of limit lateral linear displacement concurrently, and guiding trestle also can give the supporting role certain with thermal shield tunnel segment simultaneously.Under normal circumstances, existing guiding trestle directly anchors in the bar construction of tunnel ring-shaped section of jurisdiction, Pouring concrete at the same time starts shaping, this structure can not guarantee stability long-term effectively, and owing to anchoring into concrete structure, when making exchange support when needing repairing or need adjusting pole position, bother very much, and the integrated support intensity of as easy as rolling off a log destruction support, therefore adopt the structure of which kind of guiding trestle and and section of jurisdiction between connected mode in order to bear the lateral thrust of heat distribution pipeline, heat distribution pipeline is made to limit the displacement in other directions except axially, the support simultaneously effectively bearing again other active force above-mentioned has become one of technical barrier of current shield tunnel project quality.
Summary of the invention
For solving defect of the prior art, the invention provides and a kind ofly can ensure that heat distribution pipeline is according to axial direction displacement, again the effective heating power shield tunnel guiding trestle supporting other active forces such as earth pressure outside tunnel simultaneously.
Technical scheme:
A kind of heating power shield tunnel guiding trestle, comprise the reinforced concrete segment deck forming tunnel inner wall layer, on the inwall of described reinforced concrete segment deck, laminating is provided with doughnut-shaped steel plate band structure layer, the inwall of described doughnut-shaped steel plate band structure layer is connected with support frame structure, support frame as described above structure comprises the some groups of bracing frames axially distributed successively along tunnel, often organize bracing frame and comprise the first bracing frame being positioned at left side and the second bracing frame being positioned at right side, existing distance between left and right in tunnel radial direction between described first bracing frame and described second bracing frame, there is again the fore-and-aft clearance axially in tunnel, described doughnut-shaped steel plate band structure layer comprises the some groups of doughnut-shaped steel plate bands axially distributed successively along tunnel, often organize doughnut-shaped steel plate band and comprise the first ring doughnut-shaped steel plate band and the second ring doughnut-shaped steel plate band that axially distribute successively along tunnel, described first bracing frame is positioned at described first ring doughnut-shaped steel plate band, described second bracing frame is positioned at described second ring doughnut-shaped steel plate band.
Described reinforced concrete segment deck comprises the some groups of reinforced concrete segments axially distributed successively along tunnel, often organize reinforced concrete segment and comprise the first ring annular section of jurisdiction and the second ring annular section of jurisdiction that axially distribute successively along tunnel, be fixedly connected with by longitudinal segment bolt between described first ring annular section of jurisdiction with the second ring annular section of jurisdiction, each ring annular section of jurisdiction comprises a section of jurisdiction of binding along tunnel circumference distribution, two adjacent sections of jurisdiction and three standard sections of jurisdiction, a described section of jurisdiction of binding, two adjacent sections of jurisdiction and three standard sections of jurisdiction are fixedly connected into ring by hoop segment bolt, described first ring doughnut-shaped steel plate band is fixed on the inwall of described first ring annular section of jurisdiction, described second ring doughnut-shaped steel plate band is fixed on the inwall of described second ring annular section of jurisdiction, by concreting, described reinforced concrete segment deck and doughnut-shaped steel plate band structure layer are become one structure, described heating power water supply line and heating power water return pipeline run in the guide in support frame as described above structure.
Described doughnut-shaped steel plate band is spliced by some steel plate annulars by the mode suitable with described reinforced concrete segment, and the radian of each steel plate is consistent with the radian of the section of jurisdiction inwall on corresponding position, fits to make steel plate outer wall and section of jurisdiction inwall adaptation; Described doughnut-shaped steel plate band is provided with the dowel be connected and fixed with the inside reinforcing bar of described reinforced concrete segment, and described steel plate forms annular integrative-structure by the Lining Ring mode of employing staggered joint erection together with the section of jurisdiction of opposite position.
Described steel plate is embedded in corresponding section of jurisdiction inwall, is fixed by described dowel and concreting and section of jurisdiction.
Described first bracing frame and the second bracing frame include 2 support posts, and the two ends up and down of described support post are all connected to a fixed with corresponding doughnut-shaped steel plate band inwall, are laterally provided with support rail between described 2 support posts.
Junction between two the adjacent steel plates having at least one end of a support post to be fixedly connected in doughnut-shaped steel plate band.
Support frame as described above adopts solid square steel matter, and described hoop segment bolt is double headed arcuate bolt segment bolt.
Two ends up and down and the described doughnut-shaped steel plate band inwall of described support post adopt welding manner to be connected and fixed.
Described doughnut-shaped steel plate band comprises the some steel plates suitable with the shape of corresponding section of jurisdiction, the outer wall radian of adaptive steel plate is consistent with the inwall radian of adaptive section of jurisdiction, the adjacent steel plate position corresponding with described hoop segment bolt is provided with fixing hole, in order to the adjacent one end making hoop segment bolt be connected and fixed adjacent section of jurisdiction, and by through the described fixing hole on opposite position on steel plate by described Interal fixation at corresponding described adjacent section of jurisdiction inwall.
Gap, hoop junction between adjacent steel plate is connected and fixed by welding manner.
Technique effect:
The invention provides a kind of heating power shield tunnel guiding trestle, compared to the prior art, the present invention has following beneficial effect:
On the inwall of 1, reinforced concrete segment deck, laminating is provided with the doughnut-shaped steel plate band structure layer be connected with support frame structure, doughnut-shaped steel plate band structure layer effectively helps reinforced concrete segment deck to share the effect of the pressure of its outer soil layer of shield tunnel, groundwater pressure and some special loads, play best booster action, make the shockproof state of resistance to compression that reinforced concrete segment deck keeps best, ensure the safety in tunnel; By the inwall of doughnut-shaped steel plate band structure layer and the connection of support frame structure, greatly strengthen the anti-pressure ability of reinforced concrete segment deck.Support frame structure comprises the some groups of bracing frames axially distributed successively along tunnel, often organize bracing frame and comprise the first bracing frame being positioned at left side and the second bracing frame being positioned at right side, existing distance between left and right in tunnel radial direction between first bracing frame and the second bracing frame, there is again the fore-and-aft clearance axially in tunnel, first bracing frame is positioned at first ring doughnut-shaped steel plate band, second bracing frame is positioned at the second ring doughnut-shaped steel plate band, make to form installation of staggering between the first bracing frame and the second bracing frame, supply in order to penetrate heating power respectively, water return pipeline, bracing frame not only effectively limit the displacement in other directions of heat distribution pipeline except axially, effectively add again the support performance of doughnut-shaped steel plate band simultaneously, thus add the entire compression shockproof properties of annular section of jurisdiction.Doughnut-shaped steel plate band structure layer comprises the some groups of doughnut-shaped steel plate bands axially distributed successively along tunnel, often organizes doughnut-shaped steel plate band and comprises the first ring doughnut-shaped steel plate band and the second ring doughnut-shaped steel plate band that axially distribute successively along tunnel.
2, reinforced concrete segment deck comprises the some groups of reinforced concrete segments axially distributed successively along tunnel, often organize reinforced concrete segment and comprise the first ring annular section of jurisdiction and the second ring annular section of jurisdiction that axially distribute successively along tunnel, first ring is crossed longitudinal segment bolt and is fixedly connected with, and makes it form the tunnel that can hold heat distribution pipeline.Each ring annular section of jurisdiction comprises along a section of jurisdiction of binding of tunnel circumference distribution, two adjacent sections of jurisdiction and three standard sections of jurisdiction, convenient prefabricated in advance, directly splice when constructing, improve efficiency of construction, section of jurisdiction of binding, two adjacent sections of jurisdiction and three standard sections of jurisdiction are fixedly connected into ring by hoop segment bolt, form integrative-structure.First ring doughnut-shaped steel plate band is fixed on the inwall of first ring annular section of jurisdiction, second ring doughnut-shaped steel plate band is fixed on the inwall of the second ring annular section of jurisdiction, by concreting, reinforced concrete segment deck and doughnut-shaped steel plate band structure layer are become one structure, heating power water supply line and heating power water return pipeline run in the guide in support frame structure.
3, doughnut-shaped steel plate band is spliced by some steel plate annulars by the mode suitable with reinforced concrete segment, and the radian of each steel plate is consistent with the radian of the section of jurisdiction inwall on corresponding position, fits to make steel plate outer wall and section of jurisdiction inwall adaptation; Doughnut-shaped steel plate band is provided with the dowel be connected and fixed with the inside reinforcing bar of reinforced concrete segment, fixing in order to be built by steel concrete.Steel plate by adopting the Lining Ring mode of staggered joint erection to form annular integrative-structure, making annular section of jurisdiction and doughnut-shaped steel plate band complete assembled simultaneously, improve assembled efficiency together with the section of jurisdiction of opposite position.
4, when steel plate is embedded in corresponding section of jurisdiction inwall, when carrying out steel concrete and building, steel plate just can be fixed in the layer of concrete inwall of section of jurisdiction by dowel to reach one-body molded effect.
5, the first bracing frame and the second bracing frame include 2 support posts, the two ends up and down of support post are all connected to a fixed with corresponding doughnut-shaped steel plate band inwall, enable the resistance to compression effect of supporting strut reinforcement annular steel plate strip to a certain extent, laterally be provided with support rail between 2 support posts, object is to prevent adjacent supports pillar be subject to the pressure of heat distribution pipeline thus affect anti-pressure ability.Bracing frame is solid square steel matter, hoop segment bolt is double headed arcuate bolt segment bolt, its arch section is coupling part, go deep into being formed in the inside of adjacent section of jurisdiction connecting effect, double head is divided into standing part to lean out from adjacent section of jurisdiction respectively, utilizes the modes such as bolt to be fixed together by adjacent section of jurisdiction and forms annular section of jurisdiction.
6, the junction between two the adjacent steel plates having at least one end of a support post to be fixedly connected in doughnut-shaped steel plate band, by the connection of end face, effectively ensures the bonding strength between two adjacent steel plates.
7, bracing frame adopts solid square steel matter, and support effect is good, has certain non-deformability, and hoop segment bolt is preferably double headed arcuate bolt segment bolt.
8, the two ends up and down of support post and doughnut-shaped steel plate band inwall adopt welding manner to be connected and fixed, and improve efficiency of construction, also facilitate daily maintenance exchange and position adjustment.
9, doughnut-shaped steel plate band comprises the some steel plates suitable with the shape of corresponding section of jurisdiction, the outer wall radian of adaptive steel plate is consistent with the inwall radian of adaptive section of jurisdiction, the adjacent steel plate position corresponding with hoop segment bolt is provided with fixing hole, in order to the adjacent one end making hoop segment bolt be connected and fixed adjacent section of jurisdiction, and by through the fixing hole on opposite position on steel plate by Interal fixation at corresponding adjacent section of jurisdiction inwall.
10, the gap, hoop junction between adjacent steel plate is connected and fixed by welding manner, improves the bonding strength between adjacent steel plate, improves efficiency of construction, also facilitates daily maintenance exchange and position adjustment.
Accompanying drawing explanation
Fig. 1 is the guiding support structure plan view in the embodiment of the present invention;
Fig. 2 is the cross-sectional state schematic diagram of guiding trestle in Fig. 1;
Fig. 3 is the schematic cross-section of doughnut-shaped steel plate band in Fig. 2.
In figure, each label example is as follows:
1-first ring annular section of jurisdiction; 2-second ring annular section of jurisdiction; The longitudinal segment bolt of 3-; 4-hoop segment bolt; 5-section of jurisdiction; 6-standard section of jurisdiction; 7-adjoins section of jurisdiction; 8-binds section of jurisdiction; 9-first ring doughnut-shaped steel plate band; 10-second ring doughnut-shaped steel plate band; 11-steel plate; 12-first bracing frame; 13-second bracing frame; 14-first bracing frame medial support column; 15-first bracing frame outside-supporting column; 16-second bracing frame medial support column; 17-second bracing frame outside-supporting column; 18-first support rail; 19-second support rail; 20-fixing hole; 21-dowel; 22-reinforcing bar.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In current heating power shield tunnel is built, basic elder generation digs out dark hole by shield machine at deep under ground, then the annular section of jurisdiction suitable with dark hole dia by being spliced into forms the tunnel that can hold heating power confession, water return pipeline (not shown), the now outermost layer barrier in Ze Shi tunnel, annular section of jurisdiction, carries the effect of opposing earth pressure, groundwater pressure and some special loads.And the permanent lining, secondary lining structure of annular section of jurisdiction, be directly connected to total quality and the safety in tunnel, affect water resistance and the endurance quality of heating power shield tunnel.
Fig. 1 is the guiding support structure plan view in the embodiment of the present invention, Fig. 2 is the cross-sectional state schematic diagram of guiding trestle in Fig. 1, as depicted in figs. 1 and 2, the invention provides a kind of heating power shield tunnel guiding trestle, comprise the reinforced concrete segment deck (not shown) forming tunnel inner wall layer, on the inwall of reinforced concrete segment deck, laminating is provided with the doughnut-shaped steel plate band structure layer (not shown) be connected with support frame structure, doughnut-shaped steel plate band structure layer effectively helps reinforced concrete segment deck to share the pressure of its outer soil layer of shield tunnel, the effect of groundwater pressure and some special loads, play best supplemental support effect, make the shockproof state of resistance to compression that reinforced concrete segment deck keeps best, ensure the safety in tunnel, the inwall of doughnut-shaped steel plate band structure layer is provided with support frame structure (not shown), by being connected with support frame structure, greatly strengthens the anti-pressure ability of reinforced concrete segment deck.
Concrete, reinforced concrete segment deck comprises the some groups of reinforced concrete segments 5 axially distributed successively along tunnel, often organize reinforced concrete segment deck and comprise the first ring annular section of jurisdiction 1 and the second ring annular section of jurisdiction 2 that axially distribute successively along tunnel, be fixedly connected with by longitudinal segment bolt 3 between first ring annular section of jurisdiction 1 with the second ring annular section of jurisdiction 2, make it form the tunnel that can hold heat distribution pipeline.Each ring annular section of jurisdiction comprises bind adjacent section of jurisdiction 7,8, two, section of jurisdiction and three standard sections of jurisdiction 6 along tunnel circumference distribution, convenient prefabricated in advance, directly splice when constructing, improve efficiency of construction, bind adjacent section of jurisdiction 7,8, two, section of jurisdiction and three standard sections of jurisdiction 6 are fixedly connected into ring by hoop segment bolt 4, form integrative-structure.Same, doughnut-shaped steel plate band structure layer comprises the some groups of doughnut-shaped steel plate bands axially distributed successively along tunnel, often organizes doughnut-shaped steel plate band and comprises the first ring doughnut-shaped steel plate band 9 and the second ring doughnut-shaped steel plate band 10 that axially distribute successively along tunnel.First ring doughnut-shaped steel plate band 9 is fixed on the inwall of first ring annular section of jurisdiction 1, second ring doughnut-shaped steel plate band 10 is fixed on the inwall of the second ring annular section of jurisdiction 2, by concreting, reinforced concrete segment deck and doughnut-shaped steel plate band structure layer are become one structure, heating power water supply line and heating power water return pipeline run in the guide in support frame structure.
Further, every ring ring pipe sheet ring width 1.2 meters, every ring is divided into 6 pieces: comprise 3 pieces of standard sections of jurisdiction 6 (A type), 2 pieces of adjacent sections of jurisdiction 7 (B1, B2 type), 1 piece of section of jurisdiction 8 (C type) of binding.Fig. 3 is the schematic cross-section of doughnut-shaped steel plate band in Fig. 2, as shown in Figure 3, steel plate 11 is embedded in corresponding section of jurisdiction 5 inwall, be connected to a fixed by the reinforcing bar 22 of dowel 21 with inside, section of jurisdiction 5, when section of jurisdiction 5 carry out steel concrete build time, steel plate 11 just can be fixed in the layer of concrete inwall of section of jurisdiction 5 by dowel 21.Annular section of jurisdiction adopts the mode of staggered joint erection to carry out Lining Ring.Assembled order is generally from 3 pieces of standard sections of jurisdiction 6 (A type) of bottom, the left and right sides replaces installation code section of jurisdiction 6 (A type) successively, then two ends, left and right assembled one piece of adjacent section of jurisdiction 7 (Type B) respectively, finally installs section of jurisdiction 8 (C type) of binding.
Every ring doughnut-shaped steel plate band is spliced by some steel plate 11 annulars by the mode that the annular section of jurisdiction with corresponding is suitable, the radian of each steel plate 11 is consistent with the radian of section of jurisdiction 5 inwall on corresponding position, fits to make steel plate 11 outer wall and section of jurisdiction 5 inwall adaptation; Doughnut-shaped steel plate band is provided with the dowel 21 be connected and fixed with the inside reinforcing bar 22 of reinforced concrete segment 5, fixing in order to be built by steel concrete.When steel plate 11 is embedded in corresponding section of jurisdiction 5 inwall, when carrying out steel concrete and building, steel plate 11 just can be fixed in the layer of concrete inwall of section of jurisdiction 5 by dowel 21 to reach one-body molded effect.Steel plate 11 by adopting the Lining Ring mode of staggered joint erection to form annular integrative-structure, making annular section of jurisdiction and doughnut-shaped steel plate band complete assembled simultaneously, improve assembled efficiency together with the section of jurisdiction 5 of opposite position.
Support frame structure comprises the some groups of bracing frames axially distributed successively along tunnel, often organize bracing frame and comprise the first bracing frame 12 being positioned at left side and the second bracing frame 13 being positioned at right side, existing distance between left and right in tunnel radial direction between first bracing frame 12 and the second bracing frame 13, there is again the fore-and-aft clearance axially in tunnel, first bracing frame is positioned at first ring doughnut-shaped steel plate band 9, second supports chord position 13 in the second ring doughnut-shaped steel plate band 10, make to form installation of staggering between the first bracing frame 12 and the second bracing frame 13, in order to penetrate heating power confession, water return pipeline respectively; Bracing frame not only effectively limit the displacement in other directions of heat distribution pipeline except axially, effectively adds again the support performance of doughnut-shaped steel plate band simultaneously, thus adds the entire compression shockproof properties of annular section of jurisdiction.
Further, the first bracing frame 12 and the second bracing frame 13 comprise the first bracing frame medial support column 14, first bracing frame outside-supporting column 15 and the second bracing frame medial support column 16, second bracing frame outside-supporting column 17 respectively; The two ends up and down of above-mentioned support post all adopt the mode of welding to be connected to a fixed with corresponding doughnut-shaped steel plate band inner wall surface, enable the resistance to compression effect of supporting strut reinforcement annular steel plate strip to a certain extent.Laterally the first support rail 18 is provided with between first bracing frame medial support column 14 and the first bracing frame outside-supporting column 15, laterally the second support rail 19 is provided with between second bracing frame medial support column 16 and the second bracing frame outside-supporting column 17, object is to prevent adjacent supports pillar be subject to the pressure of heat distribution pipeline thus affect anti-pressure ability, and support post and support rail form an accommodation opening that heating power supplies in order to penetrate, water return pipeline enters.
Further, bracing frame is solid square steel matter, and support effect is good, has certain non-deformability; Hoop segment bolt 4 is preferably double headed arcuate bolt segment bolt, its arch section is coupling part, go deep into being formed in the inside of adjacent section of jurisdiction 5 connecting effect, double head is divided into standing part to lean out from adjacent section of jurisdiction 5 respectively, utilizes the modes such as bolt to be fixed together by adjacent section of jurisdiction 5 and forms annular section of jurisdiction.
The upper and lower two ends of column of the first bracing frame 12 and the second bracing frame 13 all adopt welding manner to be connected and fixed with doughnut-shaped steel plate band inwall, improve efficiency of construction, also facilitate daily maintenance exchange and position adjustment.As preferably, the junction between two the adjacent steel plates 11 having at least one end of a support post to be fixedly connected in doughnut-shaped steel plate band, by the connection of support post end face, effectively ensures the bonding strength between two adjacent steel plates 11.
The present invention also has second embodiment, in the present embodiment, doughnut-shaped steel plate band comprises the some steel plates 11 suitable with the shape of corresponding section of jurisdiction 5, the outer wall radian of adaptive steel plate 11 is consistent with the inwall radian of adaptive section of jurisdiction 5, adjacent steel plate 11 position corresponding with hoop segment bolt is provided with fixing hole 20, in order to the adjacent one end making hoop segment bolt 4 be connected and fixed adjacent section of jurisdiction 5, and pass through through the fixing hole 20 on opposite position on steel plate 11 by the inwall of Interal fixation in corresponding adjacent section of jurisdiction 5, for the maintenance of steel plate 11 and replacing after convenient.
Further, the gap, hoop junction between adjacent steel plate 11 is connected and fixed by welding manner, improves the bonding strength between adjacent steel plate 11, improves efficiency of construction, also facilitates daily maintenance exchange and position adjustment.
Claims (8)
1. a heating power shield tunnel guiding trestle, comprise the reinforced concrete segment deck forming tunnel inner wall layer, it is characterized in that: on the inwall of described reinforced concrete segment deck, laminating is provided with doughnut-shaped steel plate band structure layer, the inwall of described doughnut-shaped steel plate band structure layer is connected with support frame structure, support frame as described above structure comprises the some groups of bracing frames axially distributed successively along tunnel, often organize bracing frame and comprise the first bracing frame being positioned at left side and the second bracing frame being positioned at right side, existing distance between left and right in tunnel radial direction between described first bracing frame and described second bracing frame, there is again the fore-and-aft clearance axially in tunnel, described doughnut-shaped steel plate band structure layer comprises the some groups of doughnut-shaped steel plate bands axially distributed successively along tunnel, often organize doughnut-shaped steel plate band and comprise the first ring doughnut-shaped steel plate band and the second ring doughnut-shaped steel plate band that axially distribute successively along tunnel, described first bracing frame is positioned at described first ring doughnut-shaped steel plate band, described second bracing frame is positioned at described second ring doughnut-shaped steel plate band, described reinforced concrete segment deck comprises the some groups of reinforced concrete segments axially distributed successively along tunnel, often organize reinforced concrete segment and comprise the first ring annular section of jurisdiction and the second ring annular section of jurisdiction that axially distribute successively along tunnel, be fixedly connected with by longitudinal segment bolt between described first ring annular section of jurisdiction with the second ring annular section of jurisdiction, each ring annular section of jurisdiction comprises a section of jurisdiction of binding along tunnel circumference distribution, two adjacent sections of jurisdiction and three standard sections of jurisdiction, a described section of jurisdiction of binding, two adjacent sections of jurisdiction and three standard sections of jurisdiction are fixedly connected into ring by hoop segment bolt, described first ring doughnut-shaped steel plate band is fixed on the inwall of described first ring annular section of jurisdiction, described second ring doughnut-shaped steel plate band is fixed on the inwall of described second ring annular section of jurisdiction, by concreting, described reinforced concrete segment deck and doughnut-shaped steel plate band structure layer are become one structure, described heating power water supply line and heating power water return pipeline run in the guide in support frame as described above structure, described doughnut-shaped steel plate band is spliced by some steel plate annulars by the mode suitable with described reinforced concrete segment, and the radian of each steel plate is consistent with the radian of the section of jurisdiction inwall on corresponding position, fits to make steel plate outer wall and section of jurisdiction inwall adaptation, described doughnut-shaped steel plate band is provided with the dowel be connected and fixed with the inside reinforcing bar of described reinforced concrete segment, and described steel plate forms annular integrative-structure by the Lining Ring mode of employing staggered joint erection together with the section of jurisdiction of opposite position.
2. a kind of heating power shield tunnel guiding trestle according to claim 1, is characterized in that: described steel plate is embedded in corresponding section of jurisdiction inwall, is fixed by described dowel and concreting and section of jurisdiction.
3. a kind of heating power shield tunnel guiding trestle according to claim 1, it is characterized in that: described first bracing frame and the second bracing frame include 2 support posts, the two ends up and down of described support post are all connected to a fixed with corresponding doughnut-shaped steel plate band inwall, are laterally provided with support rail between described 2 support posts.
4. a kind of heating power shield tunnel guiding trestle according to claim 3, is characterized in that: the junction between two the adjacent steel plates having at least one end of a support post to be fixedly connected in doughnut-shaped steel plate band.
5. a kind of heating power shield tunnel guiding trestle according to claim 1, is characterized in that: support frame as described above adopts solid square steel matter, and described hoop segment bolt is double headed arcuate bolt segment bolt.
6. a kind of heating power shield tunnel guiding trestle according to claim 3, is characterized in that: two ends up and down and the described doughnut-shaped steel plate band inwall of described support post adopt welding manner to be connected and fixed.
7. a kind of heating power shield tunnel guiding trestle according to claim 1, it is characterized in that: described doughnut-shaped steel plate band comprises the some steel plates suitable with the shape of corresponding section of jurisdiction, the outer wall radian of adaptive steel plate is consistent with the inwall radian of adaptive section of jurisdiction, the adjacent steel plate position corresponding with described hoop segment bolt is provided with fixing hole, in order to the adjacent one end making hoop segment bolt be connected and fixed adjacent section of jurisdiction, and by through the described fixing hole on opposite position on steel plate by described Interal fixation at corresponding described adjacent section of jurisdiction inwall.
8. a kind of heating power shield tunnel guiding trestle according to claim 7, is characterized in that: the gap, hoop junction between adjacent steel plate is connected and fixed by welding manner.
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| CN105442643B (en) * | 2015-12-10 | 2017-03-29 | 中国十七冶集团有限公司 | A kind of construction method for processing push pipe crack |
| CN114872184B (en) * | 2022-05-06 | 2023-12-22 | 中煤科工集团北京华宇工程有限公司 | Method for manufacturing shield segment and method for manufacturing shield pipeline |
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|---|---|---|---|---|
| EP0323084A1 (en) * | 1987-12-29 | 1989-07-05 | Charcon Tunnels Limited | Improvements in or relating to lining elements for tunnels or shafts |
| CN201474702U (en) * | 2009-08-05 | 2010-05-19 | 北京市政建设集团有限责任公司 | Heating pipeline-fixing force transfer support of heating shield tunnel |
| CN103075190A (en) * | 2013-01-08 | 2013-05-01 | 嘉善三方电力器材有限公司 | Cable support for supporting cable in subway tunnel |
| CN203925518U (en) * | 2014-07-03 | 2014-11-05 | 北京特泽热力工程设计有限责任公司 | A kind of heating power shield tunnel guiding trestle |
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| Publication number | Publication date |
|---|---|
| CN104033162A (en) | 2014-09-10 |
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