CN205189886U - Tunnel transverse passage -way changes main cave construction structures - Google Patents
Tunnel transverse passage -way changes main cave construction structures Download PDFInfo
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- CN205189886U CN205189886U CN201521027073.6U CN201521027073U CN205189886U CN 205189886 U CN205189886 U CN 205189886U CN 201521027073 U CN201521027073 U CN 201521027073U CN 205189886 U CN205189886 U CN 205189886U
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Abstract
The utility model discloses a tunnel transverse passage -way changes main cave construction structures, including a pilot tunnel of connecting between tunnel construction's tunnel main cave and transverse passage -way and to carrying out the fore shaft structure of fore shaft in the front side entrance to a cave of transverse passage -way of turning, the excavation of transverse passage -way highly is less than tunnel main cave's excavation height, and the pilot tunnel of turning is 8~12m for circular curve pilot tunnel and its curvature radius, the pilot tunnel of turning is for from after by the pilot tunnel that forms of excavation upwards gradually forward of the front side entrance to a cave of transverse passage -way, the rear side entrance to a cave of the pilot tunnel of turning and the front side entrance to a cave of transverse passage -way intercommunication and its front side entrance to a cave and tunnel main cave intercommunication, and the front side entrance to a cave of the pilot tunnel of turning is located tunnel main cave's a tunnel cross section, the fore shaft structure includes the shaped steel bow member and supports in the type steel door frame in the shaped steel bow member outside. The utility model has the advantages of simple structure and reasonable design and the construction is simple and convenient, excellent in use effect, can accomplish the tunnel transverse passage -way portably, fast and change the main cave work progress to work progress safe and reliable, construction period easily guarantees.
Description
Technical field
The utility model belongs to technical field of tunnel construction, especially relates to a kind of tunnel transverse passage-way and turns main hole constructing structure.
Background technology
Along with the domestic and international high ferro visitor specially development of technology and the needs of social development, major long tunnel construction quantity increases gradually, also more and more higher to the requirement of tunnel construction technology and duration.In major long tunnel work progress, transverse passage-way of need constructing between the pilot tunnel in parallel of main hole, tunnel, is communicated with main for tunnel hole with parallel pilot tunnel by transverse passage-way.During practice of construction, the crossing's difficulty of construction being entered main hole, tunnel by transverse passage-way is comparatively large, and the construction period is long.During about about 45 °, plane included angle especially between center line and the tunnel main hole center line of transverse passage-way, difficulty of construction is larger, and at present can be less for the construction information used for reference, neither one is unified, standard and the construction method of specification can for following, and inevitably there is construction period long, the problem such as construction risk is large during practice of construction.Thus, need design that a kind of structure is simple, reasonable in design and the tunnel transverse passage-way that easy construction, result of use are good turns main hole constructing structure, can easy, complete tunnel transverse passage-way fast and turn main hole work progress, and work progress is safe and reliable, and the construction period is easy to ensure.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of tunnel transverse passage-way is provided to turn main hole constructing structure, its structure is simple, reasonable in design and easy construction, result of use are good, can easy, complete tunnel transverse passage-way fast and turn main hole work progress, and work progress is safe and reliable, the construction period is easy to ensure.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of tunnel transverse passage-way turns main hole constructing structure, it is characterized in that: comprise a pilot tunnel and the hole, front side of transverse passage-way is carried out to the locking notch structure of fore shaft of turning be connected between the main hole, tunnel of institute's construction tunnel and transverse passage-way, the excavation height of described transverse passage-way lower than the excavation height in main hole, tunnel, described in pilot tunnel of turning be circular curve pilot tunnel and its radius of curvature is 8m ~ 12m; Angle between the center line in the main hole of the center line of described transverse passage-way and tunnel is 45 °; Described pilot tunnel of turning is before backward, upwards excavate the pilot tunnel formed from the hole, front side of transverse passage-way gradually, the rear side hole of described pilot tunnel of turning is communicated with the hole, front side of transverse passage-way and on front side of it, hole is communicated with main hole, tunnel, the hole, front side of described pilot tunnel of turning is positioned on a tunnel cross section in main hole, tunnel, the tunnel cross section residing for hole, front side of described pilot tunnel of turning is intersection, described in the turn vault at hole, front side of pilot tunnel identical with the keystone in main hole, tunnel in described intersection; The rear side hole of described pilot tunnel of turning is crossing with main hole, tunnel;
Described locking notch structure comprises shaped steel arch and is supported in the shaped steel door frame outside shaped steel arch, and described shaped steel arch and shaped steel door frame are laid on same vertical plane; Described shaped steel arch is supported in the hole, front side of transverse passage-way, the structure of described shaped steel arch and size all with the cross-sectional configuration of transverse passage-way and measure-alike; Described shaped steel arch comprises the arch support and two the first columns be supported in respectively below the described arch support left and right sides that are supported in transverse passage-way arch, and described arch support is shape steel bracket, and described first column is shaped steel; Described shaped steel door frame comprises two and lays respectively at the second column outside two described first columns, is supported in top rail between two described second column top and multiple vertical supporting post be connected between top rail and described arch support together, described top rail is positioned at directly over described arch support, and described second column, top rail and vertical supporting post are shaped steel.
Above-mentioned a kind of tunnel transverse passage-way turns main hole constructing structure, it is characterized in that: described in the turn length of pilot tunnel be 15m ~ 18m.
Above-mentioned a kind of tunnel transverse passage-way turns main hole constructing structure, it is characterized in that: described in the turn radius of curvature of pilot tunnel be 10m.
Above-mentioned a kind of tunnel transverse passage-way turns main hole constructing structure, it is characterized in that: the quantity of described shaped steel door frame is two, and the structure of two described shaped steel door frames is all identical with size and the two is in laying side by side.
Above-mentioned a kind of tunnel transverse passage-way turns main hole constructing structure, it is characterized in that: two described shaped steel door frames are fastenedly connected and are integrated.
Above-mentioned a kind of tunnel transverse passage-way turns main hole constructing structure, it is characterized in that: be fastenedly connected by multiple tracks connecting reinforcement between two described shaped steel door frames.
Above-mentioned a kind of tunnel transverse passage-way turns main hole constructing structure, it is characterized in that: the overhead height of described arch support and its top identical with the floor height of top rail is propped up and withstood on top rail.
The utility model compared with prior art has the following advantages:
1, structure is simple, reasonable in design and realize convenient, drops into construction cost lower.
2, easy construction, after adit construction is extremely crossing with main hole, tunnel, turned by pilot tunnel of turning and enter main hole, tunnel, and pilot tunnel of turning goes up a slope and is excavated to main hole vault elevation, again initiatively excavation construction is carried out to tunnel subsequently, like this can easy, complete tunnel transverse passage-way fast and turn main hole work progress.
3, the locking notch structure adopted is reasonable in design and dismounting is easy, firm support can be carried out to the hole, front side of constructed transverse passage-way, and the shaped steel arch supported in main hole, tunnel can easyly be fixed on this reinforcing bracing frame, be integrated the braced structures in the main hole of transverse passage-way and tunnel is fastenedly connected, effectively can guarantee the construction safety of transverse passage-way and tunnel Zhu Dong crossing, and this locking notch structure can easy, complete dismounting fast, can not affect greatly the constructing tunnel duration.
4, result of use is good and practical value is high, can easy, complete tunnel transverse passage-way fast and turn main hole work progress, and work progress is safe and reliable, and the construction period is easy to ensure.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is Construction State schematic diagram of the present utility model.
Fig. 2 is that the utility model is turned the plan-position schematic diagram of the main hole of pilot tunnel and tunnel and transverse passage-way.
Fig. 3 is that the utility model is turned the facade position view of the main hole of pilot tunnel and tunnel and transverse passage-way.
Fig. 4 is the structural representation of the utility model locking notch structure.
Description of reference numerals:
1-transverse passage-way; 2-the first shaped steel arch; 3-shaped steel door frame;
3-1-the second column; 3-2-top rail; 3-3-vertical supporting post;
3-4-lower transverse beam; Main hole, 4-tunnel; 5-pilot tunnel of turning.
Detailed description of the invention
As shown in Figure 1, Figure 2 and Figure 3, the utility model comprises a pilot tunnel 5 and hole, front side of transverse passage-way 1 is carried out to the locking notch structure of fore shaft of turning be connected between the main hole 4, tunnel of institute's construction tunnel and transverse passage-way 1, the excavation height of described transverse passage-way 1 lower than the excavation height in main hole 4, tunnel, described in turn pilot tunnel 5 for circular curve pilot tunnel and its radius of curvature is 8m ~ 12m.Angle between the center line in the main hole 4 of the center line of described transverse passage-way 1 and tunnel is 45 °.Described pilot tunnel 5 of turning is before backward, upwards excavate the pilot tunnel formed from the hole, front side of transverse passage-way 1 gradually, the described rear side hole of pilot tunnel 5 of turning is communicated with the hole, front side of transverse passage-way 1 and on front side of it, hole is communicated with main hole 4, tunnel, the hole, front side of described pilot tunnel 5 of turning is positioned on a tunnel cross section in main hole 4, tunnel, the tunnel cross section residing for hole, front side of described pilot tunnel 5 of turning is intersection, described in the turn vault at hole, front side of pilot tunnel 5 identical with the keystone in main hole, tunnel 4 in described intersection.The rear side hole of described pilot tunnel 5 of turning is crossing with main hole 4, tunnel.
As shown in Figure 4, the shaped steel door frame 3 that described locking notch structure comprises shaped steel arch 2 and is supported in outside shaped steel arch 2, described shaped steel arch 2 is laid on same vertical plane with shaped steel door frame 3.Described shaped steel arch 2 is supported in the hole, front side of transverse passage-way 1, the structure of described shaped steel arch 2 and size all with the cross-sectional configuration of transverse passage-way 1 and measure-alike.Described shaped steel arch 2 comprises the arch support and two the first columns be supported in respectively below the described arch support left and right sides that are supported in transverse passage-way 1 arch, and described arch support is shape steel bracket, and described first column is shaped steel.Described shaped steel door frame 3 comprises two and lays respectively at the second column 3-1 outside two described first columns, is supported in top rail 3-2 between two described second column 3-1 top and multiple vertical supporting post 3-3 be connected between top rail 3-2 and described arch support together, described top rail 3-2 is positioned at directly over described arch support, and described second column 3-1, top rail 3-2 and vertical supporting post 3-3 are shaped steel.
Wherein, the center line of pilot tunnel 5 of turning described in is circular curve and its radius of curvature refers to the radius of curvature of the center line of pilot tunnel 5 of turning.
In the present embodiment, described in the turn radius of curvature of pilot tunnel 5 be 10m.
During practice of construction, can according to specific needs, the radius of curvature of pilot tunnel 5 of turning be adjusted accordingly.
In the present embodiment, described in the turn length of pilot tunnel 5 be 15m ~ 18m.
Further, the acclivitous angle of pilot tunnel 5 of turning described in is 22 ° ~ 28 °.
In the present embodiment, described arch support is assembled by many i iron, and described first column is i iron.
Further, described second column 3-1, top rail 3-2 and vertical supporting post 3-3 are i iron.
In the present embodiment, the quantity of described shaped steel door frame 3 is two, and the structure of two described shaped steel door frames 3 is all identical with size and the two is in laying side by side.
During practice of construction, two described shaped steel door frames 3 are fastenedly connected and are integrated.
In the present embodiment, be fastenedly connected by multiple tracks connecting reinforcement between two described shaped steel door frames 3.
Reality carries out propping up immediately to shaped steel door frame 3, needs first dig the hole, front side of transverse passage-way 1.
Actually add man-hour, the vertical supporting post 3-3 being positioned at top on the left of described arch support in multiple described vertical supporting post 3-3 is Left-side support post, and the vertical supporting post 3-3 being positioned at top on the right side of described arch support in multiple described vertical supporting post 3-3 is Right side support post, the quantity of described Left-side support post and described Right side support post is multiple, and multiple described Left-side support post and multiple described Right side support post are symmetrically laid.
In the present embodiment, described in described shaped steel door frame 3, the quantity of Left-side support post and described Right side support post is three.
During practice of construction, can according to specific needs, the quantity of Left-side support post described in described shaped steel door frame 3 and described Right side support post be adjusted accordingly.
In the present embodiment, the overhead height of described arch support and its top identical with the floor height of top rail 3-2 is propped up and is withstood on top rail 3-2.
In the present embodiment, described arch support is assembled by multiple arc segment.
In the present embodiment, described shaped steel door frame 3 also comprises the lower transverse beam 3-4 between being connected to together bottom two described second column 3-1, and described lower transverse beam 3-4 is that level is laid.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solutions of the utility model.
Claims (7)
1. a tunnel transverse passage-way turns main hole constructing structure, it is characterized in that: comprise a locking notch structure being connected to the pilot tunnel of turning (5) between the main hole, tunnel (4) of institute's construction tunnel and transverse passage-way (1) and the hole, front side of transverse passage-way (1) being carried out to fore shaft, the excavation height of described transverse passage-way (1) lower than the excavation height in main hole, tunnel (4), described in turn pilot tunnel (5) for circular curve pilot tunnel and its radius of curvature is 8m ~ 12m, angle between the center line of the center line and tunnel main hole (4) of described transverse passage-way (1) is 45 °, described pilot tunnel of turning (5) for upwards to excavate the pilot tunnel formed from the hole, front side of transverse passage-way (1) gradually before backward, the rear side hole of described pilot tunnel of turning (5) is communicated with the hole, front side of transverse passage-way (1) and on front side of it, hole is communicated with main hole, tunnel (4), the hole, front side of described pilot tunnel of turning (5) is positioned on a tunnel cross section in main hole, tunnel (4), the tunnel cross section residing for hole, front side of described pilot tunnel of turning (5) is intersection, the vault at the hole, front side of described pilot tunnel of turning (5) is identical with the keystone in main hole, tunnel (4) in described intersection, the rear side hole of described pilot tunnel of turning (5) is crossing with main hole, tunnel (4),
Described locking notch structure comprises shaped steel arch (2) and is supported in the shaped steel door frame (3) in shaped steel arch (2) outside, and described shaped steel arch (2) and shaped steel door frame (3) are laid on same vertical plane; Described shaped steel arch (2) is supported in the hole, front side of transverse passage-way (1), the structure of described shaped steel arch (2) and size all with the cross-sectional configuration of transverse passage-way (1) and measure-alike; Described shaped steel arch (2) comprises the arch support and two the first columns be supported in respectively below the described arch support left and right sides that are supported in transverse passage-way (1) arch, described arch support is shape steel bracket, and described first column is shaped steel; Described shaped steel door frame (3) comprises two and lays respectively at the second column (3-1) outside two described first columns, is supported in top rail (3-2) between two described second column (3-1) top and multiple vertical supporting post (3-3) be connected between top rail (3-2) and described arch support together, described top rail (3-2) is positioned at directly over described arch support, and described second column (3-1), top rail (3-2) and vertical supporting post (3-3) are shaped steel.
2. turn main hole constructing structure according to a kind of tunnel according to claim 1 transverse passage-way, it is characterized in that: described in the turn length of pilot tunnel (5) be 15m ~ 18m.
3. turn main hole constructing structure according to a kind of tunnel transverse passage-way described in claim 1 or 2, it is characterized in that: described in the turn radius of curvature of pilot tunnel (5) be 10m.
4. turn main hole constructing structure according to a kind of tunnel transverse passage-way described in claim 1 or 2, it is characterized in that: the quantity of described shaped steel door frame (3) is two, the structure of two described shaped steel door frames (3) is all identical with size and the two is in laying side by side.
5. turn main hole constructing structure according to a kind of tunnel according to claim 4 transverse passage-way, it is characterized in that: two described shaped steel door frames (3) are fastenedly connected and are integrated.
6. turn main hole constructing structure according to a kind of tunnel according to claim 5 transverse passage-way, it is characterized in that: be fastenedly connected by multiple tracks connecting reinforcement between two described shaped steel door frames (3).
7. turn main hole constructing structure according to a kind of tunnel transverse passage-way described in claim 1 or 2, it is characterized in that: the overhead height of described arch support and its top identical with the floor height of top rail (3-2) is propped up and withstood on top rail (3-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521027073.6U CN205189886U (en) | 2015-12-10 | 2015-12-10 | Tunnel transverse passage -way changes main cave construction structures |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521027073.6U CN205189886U (en) | 2015-12-10 | 2015-12-10 | Tunnel transverse passage -way changes main cave construction structures |
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| CN205189886U true CN205189886U (en) | 2016-04-27 |
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| CN201521027073.6U Active CN205189886U (en) | 2015-12-10 | 2015-12-10 | Tunnel transverse passage -way changes main cave construction structures |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437749A (en) * | 2016-08-26 | 2017-02-22 | 中铁十局集团第四工程有限公司 | Construction method for tunnel double adit roof ripping |
| CN107191198A (en) * | 2017-04-05 | 2017-09-22 | 中铁二十二局哈尔滨铁路建设集团有限责任公司 | The retaining structure and method of a kind of horizontal creep of suppression tunnel light and shade hole intersection slopes |
| CN108625860A (en) * | 2018-04-03 | 2018-10-09 | 中国建筑第八工程局有限公司 | The constructing structure and its construction method of Tunneling by mining method transverse passage-way |
| CN111520144A (en) * | 2020-03-31 | 2020-08-11 | 中交一公局第四工程有限公司 | Tunnel intersection small pilot tunnel construction method |
| CN111577292A (en) * | 2020-04-29 | 2020-08-25 | 中铁十二局集团有限公司 | Double-branch road construction method for underground excavation station of local water-rich sand layer |
-
2015
- 2015-12-10 CN CN201521027073.6U patent/CN205189886U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437749A (en) * | 2016-08-26 | 2017-02-22 | 中铁十局集团第四工程有限公司 | Construction method for tunnel double adit roof ripping |
| CN106437749B (en) * | 2016-08-26 | 2018-08-03 | 中铁十一局集团第四工程有限公司 | A kind of tunnel and Double branch hole ripping construction method |
| CN107191198A (en) * | 2017-04-05 | 2017-09-22 | 中铁二十二局哈尔滨铁路建设集团有限责任公司 | The retaining structure and method of a kind of horizontal creep of suppression tunnel light and shade hole intersection slopes |
| CN108625860A (en) * | 2018-04-03 | 2018-10-09 | 中国建筑第八工程局有限公司 | The constructing structure and its construction method of Tunneling by mining method transverse passage-way |
| CN111520144A (en) * | 2020-03-31 | 2020-08-11 | 中交一公局第四工程有限公司 | Tunnel intersection small pilot tunnel construction method |
| CN111577292A (en) * | 2020-04-29 | 2020-08-25 | 中铁十二局集团有限公司 | Double-branch road construction method for underground excavation station of local water-rich sand layer |
| CN111577292B (en) * | 2020-04-29 | 2022-02-18 | 中铁十二局集团有限公司 | Double-branch road construction method for underground excavation station of local water-rich sand layer |
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