CN104033161B - A kind of heating power shield tunnel fixed support - Google Patents
A kind of heating power shield tunnel fixed support Download PDFInfo
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- CN104033161B CN104033161B CN201410314408.6A CN201410314408A CN104033161B CN 104033161 B CN104033161 B CN 104033161B CN 201410314408 A CN201410314408 A CN 201410314408A CN 104033161 B CN104033161 B CN 104033161B
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Abstract
The invention provides a kind of heating power shield tunnel fixed support, its distribution is arranged on tunnel inner wall, comprise continuous print three ring 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 fixed support 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 fixed support, 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 fixed support.
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.
Aging along with old heat distribution pipeline, and the layout demand of new heat distribution pipe network, within a period of time, constantly will have the heating-power tunnel needing excavation in city.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, labour intensity is low, do not affect traffic above-ground and facility, 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 section of jurisdiction suitable with dark hole dia by being spliced into is formed and can hold heating power and supply, the tunnel of water return pipeline, the now outermost layer barrier in section of jurisdiction Ze Shi tunnel, carry opposing earth pressure, the effect of groundwater pressure and some special loads.Because tunnel duct piece is permanent lining, secondary lining structure, its load performance is directly connected to total quality and the safety in tunnel.
In order to the situation making heat distribution pipeline there will not be any displacement, the support that can penetrate heat distribution pipeline is typically provided with in existing heating power shield tunnel, under normal circumstances, existing fixing rack structure is comparatively simple, directly and tunnel duct piece concreting shaping, stability can not be guaranteed long-term effectively, and when exchanging support when needing repairing or need adjusting pole position, can bring very inconvenient while may produce certain destruction to the concrete structure of section of jurisdiction, have impact on tunnel duct piece integrated support intensity, therefore adopt the support of which kind of structure and and tunnel duct piece between connected mode in order to bear the lateral thrust of heat distribution pipeline, heat distribution pipeline is made to limit directive displacement, the support effective auxiliary support bearing other active force above-mentioned is simultaneously made again to have 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 can limit heat distribution pipeline any direction displacement, effectively supplemental support tunnel duct piece bears a kind of heating power shield tunnel fixed support of other active forces such as outer earth pressure simultaneously again.
Technical scheme:
A kind of heating power shield tunnel fixed support, 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, 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 axially distributed successively along tunnel, second ring doughnut-shaped steel plate band and the 3rd ring doughnut-shaped steel plate band, 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 first bracing frame is positioned at described first ring doughnut-shaped steel plate band, described second bracing frame is positioned at described 3rd ring doughnut-shaped steel plate band, between described first ring doughnut-shaped steel plate band and the second ring doughnut-shaped steel plate band, there is interval, between described second ring doughnut-shaped steel plate band and the 3rd ring doughnut-shaped steel plate band, there is interval.
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 axially distributed successively along tunnel, second ring annular section of jurisdiction and the 3rd ring annular section of jurisdiction, be interconnected and fixed by longitudinal segment bolt between adjacent 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, hoop splicing section of jurisdiction in adjacent annular section of jurisdiction forms fissure of displacement structure, 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, described 3rd ring doughnut-shaped steel plate band is fixed on the inwall of described 3rd 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, the two ends up and down of described support post are all connected to a fixed with corresponding described doughnut-shaped steel plate band inwall, are equipped with horizontal upper support rail and lower support cross bar between described 2 support posts.
Junction between two the adjacent steel plates having at least one end end face 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 structure layer 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 corresponding section of jurisdiction shape, 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 described steel plate is connected and fixed by welding manner.
The invention provides a kind of heating power shield tunnel fixed support, compared to the prior art, the present invention has following beneficial effect:
1, a kind of heating power shield tunnel fixed support, comprise the reinforced concrete segment deck forming tunnel inner wall layer, on the inwall of reinforced concrete segment deck, laminating is provided with doughnut-shaped steel plate band structure layer, doughnut-shaped steel plate band effectively help annular section of jurisdiction bear 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 annular section of jurisdiction keeps best, ensure the safety in tunnel; The inwall of doughnut-shaped steel plate band structure layer is connected with support frame structure, by the inwall of doughnut-shaped steel plate band structure layer and the connection of support frame structure, greatly strengthens the anti-pressure ability of reinforced concrete segment deck.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, the second ring doughnut-shaped steel plate band and the 3rd ring doughnut-shaped steel plate band that axially distribute successively along tunnel, support frame structure comprises the some groups of bracing frames axially distributed successively along tunnel, bracing frame not only effectively limit the displacement in any direction of heat distribution pipeline, 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.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 3rd 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, between first ring doughnut-shaped steel plate band and the second ring doughnut-shaped steel plate band, there is interval, between second ring doughnut-shaped steel plate band and the 3rd ring doughnut-shaped steel plate band, there is interval, convenient for the position adjustment between doughnut-shaped steel plate band and maintenance.
2, reinforced concrete segment deck comprises the some groups of reinforced concrete segments axially distributed successively along tunnel, and reinforced concrete segment is the outermost layer barrier in tunnel, carries the effect of opposing earth pressure, groundwater pressure and some special loads; Often organize reinforced concrete segment and comprise the annular section of jurisdiction of the first ring axially distributed successively along tunnel, the second ring annular section of jurisdiction and the 3rd ring annular section of jurisdiction, form the tunnel of an accommodation heat distribution pipeline.Be interconnected and fixed by longitudinal segment bolt between adjacent annular section of jurisdiction, make first ring annular section of jurisdiction can become to be integrated with the second ring annular section of jurisdiction and the 3rd ring annular section of jurisdiction, strengthen overall load performance.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 splicing, improving efficiency of construction when constructing.A 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, hoop splicing section of jurisdiction in adjacent annular section of jurisdiction forms fissure of displacement 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, 3rd ring doughnut-shaped steel plate band is fixed on the inwall of the 3rd 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, and 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; Be equipped with horizontal upper support rail and lower support cross bar between 2 support posts, prevent adjacent supports pillar be subject to the pressure of heat distribution pipeline thus affect anti-pressure ability.2 support posts and upper and lower support rail define the stress frame of a hollow, in order to heating power confession, water return pipeline are penetrated in the stress frame of the first bracing frame and the second bracing frame respectively, effectively limit the displacement of all directions of heat distribution pipeline, define good fixed effect.
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, support effect is good, there is certain non-deformability, hoop segment bolt 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 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.
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, installing/dismounting is more simple, is convenient to later maintenance and replacing.
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 fixing rack structure plan view in the embodiment of the present invention;
Fig. 2 is support bracket fastened cross-sectional state schematic diagram 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-the 3rd 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-the 3rd 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; 23-second ring annular section of jurisdiction; 24-second ring doughnut-shaped steel plate band.
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 fixing rack structure plan view in the embodiment of the present invention; Fig. 2 is support bracket fastened cross-sectional state schematic diagram in Fig. 1; As depicted in figs. 1 and 2, the invention provides a kind of heating power shield tunnel fixed support, 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 doughnut-shaped steel plate band structure layer (not shown), doughnut-shaped steel plate band effectively help annular section of jurisdiction bear 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 annular section of jurisdiction keeps best, ensure the safety in tunnel; The inwall of doughnut-shaped steel plate band structure layer is connected with support frame structure (not shown), by the inwall of doughnut-shaped steel plate band structure layer and the connection of support frame structure, greatly strengthens the anti-pressure ability of reinforced concrete segment deck.
Further, reinforced concrete segment deck comprises the some groups of reinforced concrete segments 5 axially distributed successively along tunnel, reinforced concrete segment 5 is the outermost layer barriers in tunnel, carries the effect of opposing earth pressure, groundwater pressure and some special loads; Often organize reinforced concrete segment 5 and comprise the first ring annular section of jurisdiction 1 and the second ring annular section of jurisdiction 23 and the 3rd ring annular section of jurisdiction 2 that axially distribute successively along tunnel, form the tunnel of an accommodation heat distribution pipeline.Be interconnected and fixed by longitudinal segment bolt 3 between adjacent annular section of jurisdiction 5, make first ring annular section of jurisdiction 1 can become to be integrated with the second ring annular section of jurisdiction 23 and the 3rd ring annular section of jurisdiction 2, strengthen overall load performance.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 splicing, improving efficiency of construction when constructing.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, and the hoop splicing section of jurisdiction 3 in adjacent annular section of jurisdiction 5 forms fissure of displacement 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.
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 first ring doughnut-shaped steel plate band 9, the second ring doughnut-shaped steel plate band 24 and the 3rd 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 24 is fixed on the inwall of the second ring annular section of jurisdiction 23,3rd ring doughnut-shaped steel plate band 10 is fixed on the inwall of the 3rd 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 (not shown) and heating power water return pipeline (not shown) run in the guide in support frame structure.Between first ring doughnut-shaped steel plate band and the second ring doughnut-shaped steel plate band, there is interval, between the second ring doughnut-shaped steel plate band and the 3rd ring doughnut-shaped steel plate band, there is interval, convenient for the position adjustment between doughnut-shaped steel plate band and maintenance.
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, bracing frame not only effectively limit the displacement in any direction of heat distribution pipeline, effectively add again the support performance of doughnut-shaped steel plate band simultaneously, 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, supply in order to penetrate heating power respectively, water return pipeline, and conveniently maintenance exchange is carried out to bracing frame, 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, between first bracing frame medial support column 14 and the first bracing frame outside-supporting column 15, each lateral connection is fixed with 2 first support rails up and down, second bracing frame medial support column 16, between second bracing frame outside-supporting column 17, each lateral connection is fixed with 2 second support rails 18 up and down, support post and support rail form the stress frame of a hollow, supply in order to make comprising heating power, the heat distribution pipeline of water return pipeline penetrates in the stressed frame of the first bracing frame and the second bracing frame respectively, by being fixedly connected with of bracing frame and doughnut-shaped steel plate band, effectively limit the displacement of all directions of heat distribution pipeline, define good fixed effect simultaneously, the auxiliary bearing capacity of annular steel plate strip pair and annular section of jurisdiction can be strengthened again.
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 to exchange.As preferably, by the adjustment for support post position, 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, more effective add junction between corresponding adjacent steel plate 11 be connected and fixed effect, make to connect between above-mentioned adjacent steel plate 11 firmer.
The present invention also has second embodiment, in the second embodiment, every ring doughnut-shaped steel plate band includes 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 the inwall of Interal fixation in corresponding adjacent section of jurisdiction 5 through the fixing hole 20 on opposite position on steel plate 11, 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 fixed support, 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, 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 axially distributed successively along tunnel, second ring doughnut-shaped steel plate band and the 3rd ring doughnut-shaped steel plate band, 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 first bracing frame is positioned at described first ring doughnut-shaped steel plate band, described second bracing frame is positioned at described 3rd ring doughnut-shaped steel plate band, between described first ring doughnut-shaped steel plate band and the second ring doughnut-shaped steel plate band, there is interval, between described second ring doughnut-shaped steel plate band and the 3rd ring doughnut-shaped steel plate band, there is interval, 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 axially distributed successively along tunnel, second ring annular section of jurisdiction and the 3rd ring annular section of jurisdiction, be interconnected and fixed by longitudinal segment bolt between adjacent 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, hoop splicing section of jurisdiction in adjacent annular section of jurisdiction forms fissure of displacement structure, 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, described 3rd ring doughnut-shaped steel plate band is fixed on the inwall of described 3rd 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 fixed support 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 fixed support 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 described doughnut-shaped steel plate band inwall, are equipped with horizontal upper support rail and lower support cross bar between described 2 support posts.
4. a kind of heating power shield tunnel fixed support according to claim 1 and 2, is characterized in that: the junction between two the adjacent steel plates having at least one end end face of a support post to be fixedly connected in doughnut-shaped steel plate band.
5. a kind of heating power shield tunnel fixed support 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 fixed support according to Claims 2 or 3, is characterized in that: two ends up and down and the described doughnut-shaped steel plate band structure layer inwall of described support post adopt welding manner to be connected and fixed.
7. a kind of heating power shield tunnel fixed support according to claim 1, it is characterized in that: described doughnut-shaped steel plate band comprises the some steel plates suitable with corresponding section of jurisdiction shape, 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. according to a kind of heating power shield tunnel fixed support one of claim 1 or 7 Suo Shu, it is characterized in that: the gap, hoop junction between adjacent described steel plate is connected and fixed by welding manner.
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| CN201410314408.6A CN104033161B (en) | 2014-07-03 | 2014-07-03 | A kind of heating power shield tunnel fixed support |
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| CN201410314408.6A CN104033161B (en) | 2014-07-03 | 2014-07-03 | A kind of heating power shield tunnel fixed support |
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| CN104033161B true CN104033161B (en) | 2016-04-20 |
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| CN108005109B (en) * | 2016-10-31 | 2020-09-22 | 浙江鑫宙竹基复合材料科技有限公司 | Can hold compound utility tunnel of bamboo of polymorphic type pipeline |
| CN108018875B (en) * | 2016-10-31 | 2020-09-22 | 浙江鑫宙竹基复合材料科技有限公司 | Structure that embedded supporting member and piping lane were assembled for piping lane |
| CN106481347B (en) * | 2016-11-28 | 2019-03-05 | 广东水电二局股份有限公司 | A kind of anti-internal water pressure composite shield section of jurisdiction |
| CN107142963A (en) * | 2017-06-29 | 2017-09-08 | 浙江鑫宙竹基复合材料科技有限公司 | Piping lane inner supporting structure and the compound piping lane of bamboo with the supporting construction |
| CN108915768B (en) * | 2018-08-28 | 2023-11-14 | 北京城建设计发展集团股份有限公司 | Fixing force transmission support system for thermodynamic pipeline in thermodynamic shield tunnel |
| CN110847323B (en) * | 2019-11-13 | 2021-01-05 | 福建安东实业有限公司 | Support adjusting frame for pipeline installation |
| CN112796786A (en) * | 2021-01-28 | 2021-05-14 | 中国建筑第四工程局有限公司 | Be used for hydraulic shield to construct building structure and strengthen fixing device |
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