CN204877493U - Soft rock tunnel supporting construction - Google Patents
Soft rock tunnel supporting construction Download PDFInfo
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- CN204877493U CN204877493U CN201520623861.5U CN201520623861U CN204877493U CN 204877493 U CN204877493 U CN 204877493U CN 201520623861 U CN201520623861 U CN 201520623861U CN 204877493 U CN204877493 U CN 204877493U
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Abstract
The utility model discloses a soft rock tunnel supporting construction, including the tunnel initial stage supporting construction tunnel secondary lining inboard with being located tunnel initial stage supporting construction, tunnel that tunnel initial stage supporting construction goes on strutting for the arch wall to the tunnel hole just props up the structure, and tunnel secondary lining is provided with the waterproof layer between for the concrete lining that struts the full section in tunnel hole and its and tunnel initial stage supporting construction, tunnel initial stage supporting construction includes a plurality of steel bow members, a plurality of stock supporting construction, lays the reinforcing bar net piece on the arch wall in tunnel hole inner wall and sprays the concrete injection layer on the arch wall in tunnel hole inner wall, the steel bow member is including supporting in the first steelframe festival section of tunnel hole hunch portion left and right sides below and second steelframe festival section respectively and supporting third steelframe festival section and fourth steelframe on the side wall of the tunnel hole left and right sides respectively and save section. The utility model has the advantages of simple structure and reasonable design and simple and convenient, high, the excellent in use effect of efficiency of construction of construction can effectively strut the tunnel hole in soft rock tunnel.
Description
Technical field
The utility model belongs to technical field of tunnel construction, especially relates to a kind of soft rock tunnel supporting and protection structure.
Background technology
Tunnel support has preliminary bracing and later stage supporting two kinds, and wherein preliminary bracing is generally named and just propped up; Later stage supporting also claims secondary lining, and be called for short two linings, shaping with lining trolley concrete construction, secondary lining is the form concrete or reinforced concrete lining layer that apply inside tunnel construction supporting in the early stage, jointly forms composite lining with preliminary bracing.Preliminary bracing is before secondary lining applies, and the support form that Tunnel has carried out after just having excavated immediately, generally has sprayed mortar, sprayed mortar adds anchor pole, the form such as sprayed mortar anchor pole and steelframe combined supporting.When nowadays carrying out constructing tunnel, often face the construction period tight and problem that difficulty of construction is large, need accelerating construction progress.When especially constructing to soft rock tunnel, often occur phenomenon of caving in, thus tunnel support construction is even more important.But when at present tunnel support construction being carried out to soft rock tunnel, there is no a set of unification, specification and concrete construction method can follow, during practice of construction, inevitably there are the problems such as constructing operation is more random, lack of standardization, speed of application slow, construction work tunnel support structure result of use that is lower, construction molding is poor.Thus, need design that a kind of structure is simple, reasonable in design and the soft rock tunnel supporting and protection structure that easy construction, efficiency of construction are high, result of use is good, effective support can be carried out to the Tunnel of soft rock tunnel.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of soft rock tunnel supporting and protection structure is provided, its structure is simple, reasonable in design and easy construction, efficiency of construction are high, result of use good, can carry out effective support to the Tunnel of soft rock tunnel.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of soft rock tunnel supporting and protection structure, it is characterized in that: comprise Tunnel structure and be positioned at the Tunnel Second Lining inside described Tunnel structure, described Tunnel structure by the arch wall of Tunnel of the construction soft rock tunnel tunnel that carries out supporting just prop up structure, described Tunnel Second Lining is Tunnel is carried out to the concrete lining of tunneling boring supporting, and Tunnel Second Lining comprise to the arch wall of Tunnel carry out supporting arch wall lining cutting and to the inverted arch lining cutting carrying out supporting bottom Tunnel, described arch wall lining cutting to be supported in inside Tunnel structure and waterproofing course is provided therebetween, described Tunnel structure comprises multiple steel arch-shelf, multiple bolt support structure, is laid in the reinforced mesh on the arch wall inwall of Tunnel and is injected in the concrete ejection layer on the arch wall inwall of Tunnel, multiple described steel arch-shelf is laid from front to back along the longitudinal extension direction of Tunnel, and described reinforced mesh and multiple described steel arch-shelf are all fixed in concrete ejection layer, multiple described bolt support structure is laid from front to back along the longitudinal extension direction of Tunnel, each described bolt support structure includes the anchor pole outside multiple arch wall being laid in Tunnel from left to right, in rock mass outside the arch wall that each described anchor pole is all anchored at Tunnel, multiple described anchor pole is all laid on the same tunnel cross section of Tunnel, anchor pole in adjacent two the described bolt support structures in front and back is in being laid staggeredly,
The structure of multiple described steel arch-shelf is all identical; Each described steel arch-shelf includes and is supported in the first steelframe sections below the left and right sides, Tunnel arch and the second steelframe sections and the 3rd steelframe sections be supported in respectively on the abutment wall of the Tunnel left and right sides and the 4th steelframe sections respectively, below the left side that described 3rd steelframe sections is positioned at the first steelframe sections and the lower end of its upper end and the first steelframe sections is fastenedly connected, and described 4th steelframe sections is positioned at the lower right-hand side of the second steelframe sections and the lower end of its upper end and the second steelframe sections is fastenedly connected; Described first steelframe sections, the second steelframe sections, the 3rd steelframe sections and the 4th steelframe sections are arc steelframe, described first steelframe sections, the second steelframe sections, the 3rd steelframe sections and the 4th steelframe sections are all laid on same vertical plane and it is spliced to form a monolithic steelframe, and described monolithic steelframe is circular arc steelframe; The upper end of described first steelframe sections and the upper end of the second steelframe sections are fastenedly connected and the tie point of the two is positioned on the center line of institute's construction tunnel arch, and the bottom of the 3rd steelframe sections and the bottom of the 4th steelframe sections are all supported in the bottom excavation face of institute's construction tunnel; Residing for described first steelframe sections and described second steelframe sections, the central angle of circular arc line is 55 ° ~ 60 °.
Above-mentioned a kind of soft rock tunnel supporting and protection structure, is characterized in that: the thickness of described Tunnel Second Lining is 35cm ~ 45cm.
Above-mentioned a kind of soft rock tunnel supporting and protection structure, is characterized in that: the thickness of described concrete ejection layer is 15cm ~ 22cm.
Above-mentioned a kind of soft rock tunnel supporting and protection structure, is characterized in that: the support body thickness of described steel arch-shelf is less than the thickness of concrete ejection layer and its support body thickness is 10cm ~ 15cm.
Above-mentioned a kind of soft rock tunnel supporting and protection structure, is characterized in that: described bolt support structure and steel arch-shelf are in being laid staggeredly.
Above-mentioned a kind of soft rock tunnel supporting and protection structure, is characterized in that: multiple described steel arch-shelf is in evenly laying, and multiple described bolt support structure is in evenly laying; Spacing between spacing two described bolt support structures adjacent with front and back between adjacent two the described steel arch-shelf in front and back is 90cm ~ 110cm.
Above-mentioned a kind of soft rock tunnel supporting and protection structure, it is characterized in that: described waterproofing course is laid between concrete ejection layer and described arch wall lining cutting, described waterproofing course comprises one deck and is laid in splash guard on concrete ejection layer inwall and one deck and is laid in geotextiles inside described splash guard.
Above-mentioned a kind of soft rock tunnel supporting and protection structure, is characterized in that: described monolithic steelframe is made up of the circular arc shape steel support that two are laid side by side, and the structure of two described circular arc shape steel supports is identical; Two described circular arc shape steel supports are one in front and one in back laid along the longitudinal extension direction of institute's construction tunnel and are fastenedly connected by the longitudinal connecting reinforcement of multiple tracks therebetween, longitudinal connecting reinforcement described in multiple tracks is along the circumferential direction laid between two described circular arc shape steel supports from left to right, and longitudinal connecting reinforcement described in multiple tracks is all laid along the longitudinal extension direction of Tunnel.
The utility model compared with prior art has the following advantages:
1, structure is simple, reasonable in design and easy construction, efficiency of construction are high and result of use good, can carry out effective support to the Tunnel of soft rock tunnel; Further, between the arch wall lining cutting in Tunnel structure and Tunnel Second Lining, waterproofing course is provided with, easy construction, fast, and good water-proof effect.
2, the Tunnel reasonable in design adopted, mainly comprise multiple steel arch-shelf, multiple bolt support structure, be laid in the reinforced mesh on the arch wall inwall of Tunnel and be injected in the concrete ejection layer on the arch wall inwall of Tunnel, not only easy construction, and be fastenedly connected with Tunnel and be integrated, supporting intensity is high and Tunnel preliminary bracing is effective.
3, the steel arch-shelf structure adopted is simple, processing and fabricating is easy, mass industrialized production can be realized and assembled convenience, result of use is good, mainly comprise and be supported in the first steelframe sections below the left and right sides, institute's construction tunnel arch and the second steelframe sections and four assembled sections such as the 3rd steelframe sections be supported in respectively on the abutment wall of institute's construction tunnel left and right sides and the 4th steelframe sections respectively, and the central angle of circular arc line residing for the first steelframe sections and the second steelframe sections is all set as 55 ° ~ 60 °, not only reduce the assembled sections of grid steel frame, and convenient construction personnel operation and erection.When reality is set up steel arch-shelf, job execution personnel 3 people one group, first the 3rd steelframe sections and the 4th steelframe sections are transferred and installed and put in place, hand fit's rope is slowly transferred the first steelframe sections and the second steelframe sections and is docked with the 3rd steelframe sections and the 4th steelframe sections respectively afterwards, after the first steelframe sections and the second steelframe sections have docked with the 3rd steelframe sections and the 4th steelframe sections respectively, again the first steelframe sections and the second steelframe sections are slowly pushed to arch docking, so just complete the erection of a Pin grid steel frame.Thus, facilitate constructor's operation, reduce labour intensity, the steel arch-shelf erection activity duration can effectively reduce, thus effectively can improve erection progress and supporting construction progress.
4, the Tunnel Second Lining adopted is Tunnel is carried out to the concrete lining of tunneling boring supporting, adopts tunneling boring Tunnel Second Lining formwork jumbo to construct, and speed of application is fast, efficiency of construction is high and construction quality is easy to ensure.
In sum, the utility model structure is simple, reasonable in design and easy construction, efficiency of construction are high, result of use good, can carry out effective support to the Tunnel of soft rock tunnel.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the installation position schematic diagram of the utility model steel arch-shelf.
Fig. 3 is the enlarged drawing at A place in Fig. 2.
Description of reference numerals:
1-1-steel arch-shelf; 1-11-the first steelframe sections; 1-12-the second steelframe sections;
1-13-the 3rd steelframe sections; 1-14-the 4th steelframe sections; 1-15-longitudinal connecting reinforcement;
1-16-1-extenal fixation bar; 1-16-2-internal fixtion bar; 1-16-3-oblique connecting rod;
1-2-concrete ejection layer; 1-3-anchor pole; 2-Tunnel Second Lining;
3-Tunnel; 4-waterproofing course.
Detailed description of the invention
As Fig. 1, shown in Fig. 2, the utility model comprises Tunnel structure and is positioned at the Tunnel Second Lining 2 inside Tunnel structure, described Tunnel structure by the arch wall of Tunnel 3 of the construction soft rock tunnel tunnel that carries out supporting just prop up structure, described Tunnel Second Lining 2 is Tunnel 3 is carried out to the concrete lining of tunneling boring supporting, and Tunnel Second Lining 2 comprise to the arch wall of Tunnel 3 carry out supporting arch wall lining cutting and to the inverted arch lining cutting carrying out supporting bottom Tunnel 3, described arch wall lining cutting to be supported in inside Tunnel structure and waterproofing course 4 is provided therebetween, described Tunnel structure comprises multiple steel arch-shelf 1-1, multiple bolt support structure, is laid in the reinforced mesh on the arch wall inwall of Tunnel 3 and is injected in the concrete ejection layer 1-2 on the arch wall inwall of Tunnel 3, multiple described steel arch-shelf 1-1 lays from front to back along the longitudinal extension direction of Tunnel 3, and described reinforced mesh and multiple described steel arch-shelf 1-1 are all fixed in concrete ejection layer 1-2, multiple described bolt support structure is laid from front to back along the longitudinal extension direction of Tunnel 3, each described bolt support structure includes the anchor pole 1-3 outside multiple arch wall being laid in Tunnel 3 from left to right, in rock mass outside the arch wall that each described anchor pole 1-3 is all anchored at Tunnel 3, multiple described anchor pole 1-3 is all laid on the same tunnel cross section of Tunnel 3, anchor pole 1-3 in adjacent two the described bolt support structures in front and back is in being laid staggeredly.Wherein, the arch wall of described Tunnel 3 refers to both sides abutment wall and the arch of Tunnel 3.
The structure of multiple described steel arch-shelf 1-1 is all identical.Each described steel arch-shelf 1-1 includes and is supported in the first steelframe sections 1-11 below the left and right sides, Tunnel 3 arch and the second steelframe sections 1-12 and the 3rd steelframe sections 1-13 be supported in respectively on the abutment wall of Tunnel 3 left and right sides and the 4th steelframe sections 1-14 respectively, below the left side that described 3rd steelframe sections 1-13 is positioned at the first steelframe sections 1-11 and the lower end of its upper end and the first steelframe sections 1-11 is fastenedly connected, and described 4th steelframe sections 1-14 is positioned at the lower right-hand side of the second steelframe sections 1-12 and the lower end of its upper end and the second steelframe sections 1-12 is fastenedly connected.Described first steelframe sections 1-11, the second steelframe sections 1-12, the 3rd steelframe sections 1-13 and the 4th steelframe sections 1-14 are arc steelframe, described first steelframe sections 1-11, the second steelframe sections 1-12, the 3rd steelframe sections 1-13 and the 4th steelframe sections 1-14 are all laid on same vertical plane and it is spliced to form a monolithic steelframe, and described monolithic steelframe is circular arc steelframe; The upper end of described first steelframe sections 1-11 and the upper end of the second steelframe sections 1-12 is fastenedly connected and the tie point of the two is positioned on the center line of institute's construction tunnel arch, the bottom of described 3rd steelframe sections 1-13 and the bottom of the 4th steelframe sections 1-14 are all supported in the bottom excavation face of institute's construction tunnel; Residing for described first steelframe sections 1-11 and described second steelframe sections 1-12, the central angle of circular arc line is 55 ° ~ 60 °.
In the present embodiment, described anchor pole 1-3 is grouting rock bolt.Multiple described anchor pole 1-3 in each described bolt support structure along the circumferential direction evenly lays.
In the present embodiment, the thickness of described Tunnel Second Lining 2 is 35cm ~ 45cm.
Further, the thickness of described concrete ejection layer 1-2 is 15cm ~ 22cm.
In the present embodiment, the support body thickness of described steel arch-shelf 1-1 is less than the thickness of concrete ejection layer 1-2 and its support body thickness is 10cm ~ 15cm.
During practice of construction, can according to specific needs, the thickness of Tunnel Second Lining 2, the thickness of concrete ejection layer 1-2 and the support body thickness of steel arch-shelf 1-1 are adjusted accordingly.
In the present embodiment, described bolt support structure and steel arch-shelf 1-1 are in being laid staggeredly.
Further, multiple described steel arch-shelf 1-1 is in evenly laying, and multiple described bolt support structure is in evenly laying; Spacing between spacing two described bolt support structures adjacent with front and back between adjacent two the described steel arch-shelf 1-1 in front and back is 90cm ~ 110cm.
In the present embodiment, the spacing between spacing two described bolt support structures adjacent with front and back between adjacent two the described steel arch-shelf 1-1 in front and back is 100cm.
In the present embodiment, described waterproofing course 4 is laid between concrete ejection layer 1-2 and described arch wall lining cutting, and described waterproofing course 4 comprises one deck and is laid in splash guard on concrete ejection layer 1-2 inwall and one deck and is laid in geotextiles inside described splash guard.
In the present embodiment, the central angle of circular arc line residing for described first steelframe sections 1-11 and described second steelframe sections 1-12 is all preferably 57 ° ~ 59 °.
Further, residing for the first steelframe sections 1-11, the central angle A1 of circular arc line is specially about 57.5 °, and residing for the second steelframe sections 1-12, the central angle A2 of circular arc line is specially 58.5 °.
During practice of construction, can according to specific needs, the central angle size of circular arc line residing for described first steelframe sections 1-11 and described second steelframe sections 1-12 is adjusted accordingly.
In the present embodiment, described monolithic steelframe is made up of the circular arc shape steel support that two are laid side by side, two described circular arc shape steel supports are one in front and one in back laid along the longitudinal extension direction of institute's construction tunnel and are fastenedly connected by the longitudinal connecting reinforcement 1-15 of multiple tracks therebetween, longitudinal connecting reinforcement 1-15 described in multiple tracks is along the circumferential direction laid between two described circular arc shape steel supports from left to right, and longitudinal connecting reinforcement 1-15 described in multiple tracks all lays along the longitudinal extension direction of Tunnel 3.
Actually add man-hour, composition graphs 3, described circular arc shape steel support comprises extenal fixation bar 1-16-1, internal fixtion bar 1-16-2 immediately below extenal fixation bar 1-16-1 and multiple tracks and is connected to oblique connecting rod 1-16-3 between extenal fixation bar 1-16-1 and internal fixtion bar 1-16-2, described extenal fixation bar 1-16-1 is identical with the shape of internal fixtion bar 1-16-2 and the two is circular arc bar, described extenal fixation bar 1-16-1, internal fixtion bar 1-16-2 and be connected to therebetween described in multiple tracks oblique connecting rod 1-16-3 and be all laid on same vertical plane.
In the present embodiment, described extenal fixation bar 1-16-1 and internal fixtion bar 1-16-2 is i iron.
Further, described in multiple tracks, longitudinal connecting reinforcement 1-15 along the circumferential direction evenly lays.
In the present embodiment, described first steelframe sections 1-11, the second steelframe sections 1-12, the 3rd steelframe sections 1-13 are all identical with the structure of the 4th steelframe sections 1-14.
In practice of construction process, carry out in digging process to Tunnel 3 before backward, by before backward excavating the Tunnel 3 formed in described Tunnel structure of constructing, simultaneously by backward front inside the described Tunnel structure of having constructed construction tunnel secondary lining 2.
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 (8)
1. a soft rock tunnel supporting and protection structure, it is characterized in that: comprise Tunnel structure and be positioned at the Tunnel Second Lining (2) inside described Tunnel structure, described Tunnel structure by the arch wall of Tunnel (3) of the construction soft rock tunnel tunnel that carries out supporting just prop up structure, described Tunnel Second Lining (2) is Tunnel (3) is carried out to the concrete lining of tunneling boring supporting, and Tunnel Second Lining (2) comprises and carries out the arch wall lining cutting of supporting to the arch wall of Tunnel (3) and carry out the inverted arch lining cutting of supporting to Tunnel (3) bottom, described arch wall lining cutting to be supported in inside Tunnel structure and waterproofing course (4) is provided therebetween, described Tunnel structure comprises multiple steel arch-shelf (1-1), multiple bolt support structure, is laid in reinforced mesh on the arch wall inwall of Tunnel (3) and is injected in the concrete ejection layer (1-2) on the arch wall inwall of Tunnel (3), multiple described steel arch-shelf (1-1) is laid from front to back along the longitudinal extension direction of Tunnel (3), and described reinforced mesh and multiple described steel arch-shelf (1-1) are all fixed in concrete ejection layer (1-2), multiple described bolt support structure is laid from front to back along the longitudinal extension direction of Tunnel (3), each described bolt support structure includes the anchor pole (1-3) outside multiple arch wall being laid in Tunnel (3) from left to right, in rock mass outside the arch wall that each described anchor pole (1-3) is all anchored at Tunnel (3), multiple described anchor pole (1-3) is all laid on the same tunnel cross section of Tunnel (3), anchor pole (1-3) in adjacent two the described bolt support structures in front and back is in being laid staggeredly,
The structure of multiple described steel arch-shelf (1-1) is all identical, each described steel arch-shelf (1-1) includes and is supported in the first steelframe sections (1-11) below Tunnel (3) left and right sides, arch and the second steelframe sections (1-12) and the 3rd steelframe sections (1-13) be supported in respectively on the abutment wall of Tunnel (3) left and right sides and the 4th steelframe sections (1-14) respectively, below the left side that described 3rd steelframe sections (1-13) is positioned at the first steelframe sections (1-11) and the lower end of its upper end and the first steelframe sections (1-11) is fastenedly connected, described 4th steelframe sections (1-14) is positioned at the lower right-hand side of the second steelframe sections (1-12) and the lower end of its upper end and the second steelframe sections (1-12) is fastenedly connected, described first steelframe sections (1-11), the second steelframe sections (1-12), the 3rd steelframe sections (1-13) and the 4th steelframe sections (1-14) are arc steelframe, described first steelframe sections (1-11), the second steelframe sections (1-12), the 3rd steelframe sections (1-13) and the 4th steelframe sections (1-14) are all laid on same vertical plane and it is spliced to form a monolithic steelframe, and described monolithic steelframe is circular arc steelframe, the upper end of described first steelframe sections (1-11) and the upper end of the second steelframe sections (1-12) is fastenedly connected and the tie point of the two is positioned on the center line of institute's construction tunnel arch, the bottom of the 3rd steelframe sections (1-13) and the bottom of the 4th steelframe sections (1-14) are all supported in the bottom excavation face of institute's construction tunnel, the central angle of described first steelframe sections (1-11) and the residing circular arc line of described second steelframe sections (1-12) is 55 ° ~ 60 °.
2. according to a kind of soft rock tunnel supporting and protection structure according to claim 1, it is characterized in that: the thickness of described Tunnel Second Lining (2) is 35cm ~ 45cm.
3. according to a kind of soft rock tunnel supporting and protection structure described in claim 1 or 2, it is characterized in that: the thickness of described concrete ejection layer (1-2) is 15cm ~ 22cm.
4. according to a kind of soft rock tunnel supporting and protection structure according to claim 3, it is characterized in that: the support body thickness of described steel arch-shelf (1-1) is less than the thickness of concrete ejection layer (1-2) and its support body thickness is 10cm ~ 15cm.
5. according to a kind of soft rock tunnel supporting and protection structure described in claim 1 or 2, it is characterized in that: described bolt support structure and steel arch-shelf (1-1) are in being laid staggeredly.
6. according to a kind of soft rock tunnel supporting and protection structure according to claim 5, it is characterized in that: multiple described steel arch-shelf (1-1) is in evenly laying, and multiple described bolt support structure is in evenly laying; Spacing between spacing two described bolt support structures adjacent with front and back between adjacent two the described steel arch-shelf (1-1) in front and back is 90cm ~ 110cm.
7. according to a kind of soft rock tunnel supporting and protection structure described in claim 1 or 2, it is characterized in that: described waterproofing course (4) is laid between concrete ejection layer (1-2) and described arch wall lining cutting, described waterproofing course (4) comprises one deck and is laid in splash guard on concrete ejection layer (1-2) inwall and one deck and is laid in geotextiles inside described splash guard.
8. according to a kind of soft rock tunnel supporting and protection structure described in claim 1 or 2, it is characterized in that: described monolithic steelframe is made up of the circular arc shape steel support that two are laid side by side, the structure of two described circular arc shape steel supports is identical; Two described circular arc shape steel supports are one in front and one in back laid along the longitudinal extension direction of institute's construction tunnel and are fastenedly connected by the longitudinal connecting reinforcement (1-15) of multiple tracks therebetween, longitudinal connecting reinforcement (1-15) described in multiple tracks is along the circumferential direction laid between two described circular arc shape steel supports from left to right, and longitudinal connecting reinforcement (1-15) described in multiple tracks is all laid along the longitudinal extension direction of Tunnel (3).
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| CN201520623861.5U CN204877493U (en) | 2015-08-17 | 2015-08-17 | Soft rock tunnel supporting construction |
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|---|---|---|---|
| CN201520623861.5U CN204877493U (en) | 2015-08-17 | 2015-08-17 | Soft rock tunnel supporting construction |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481343A (en) * | 2016-11-14 | 2017-03-08 | 西安科技大学 | A kind of Soft Rock Tunnel Excavation and preliminary bracing method |
| CN106522978A (en) * | 2016-11-14 | 2017-03-22 | 西安科技大学 | Soft rock tunnel construction method on the basis of flexible formwork support |
| CN107489431A (en) * | 2017-06-29 | 2017-12-19 | 昆明理工大学 | A kind of large deformation country rock stage composite lining cutting |
| CN108756948A (en) * | 2018-06-15 | 2018-11-06 | 中铁工程设计咨询集团有限公司 | A kind of longspan tunnel prestressed anchor net branch shell is from carrying supporting construction |
| CN110952987A (en) * | 2019-12-03 | 2020-04-03 | 济南轨道交通集团有限公司 | Construction method for side-through bridge pile of stacked porous subway tunnel |
| CN112610255A (en) * | 2020-12-11 | 2021-04-06 | 中铁二十局集团有限公司 | Tunnel construction method for penetrating through weak and broken surrounding rock |
-
2015
- 2015-08-17 CN CN201520623861.5U patent/CN204877493U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481343A (en) * | 2016-11-14 | 2017-03-08 | 西安科技大学 | A kind of Soft Rock Tunnel Excavation and preliminary bracing method |
| CN106522978A (en) * | 2016-11-14 | 2017-03-22 | 西安科技大学 | Soft rock tunnel construction method on the basis of flexible formwork support |
| CN106481343B (en) * | 2016-11-14 | 2018-07-03 | 西安科技大学 | A kind of Soft Rock Tunnel Excavation and preliminary bracing method |
| CN107489431A (en) * | 2017-06-29 | 2017-12-19 | 昆明理工大学 | A kind of large deformation country rock stage composite lining cutting |
| CN107489431B (en) * | 2017-06-29 | 2019-09-27 | 昆明理工大学 | A kind of large deformation country rock stage composite lining cutting |
| CN108756948A (en) * | 2018-06-15 | 2018-11-06 | 中铁工程设计咨询集团有限公司 | A kind of longspan tunnel prestressed anchor net branch shell is from carrying supporting construction |
| CN108756948B (en) * | 2018-06-15 | 2023-06-20 | 中铁工程设计咨询集团有限公司 | Self-bearing supporting structure for large-span tunnel prestress anchor net supporting rock shell |
| CN110952987A (en) * | 2019-12-03 | 2020-04-03 | 济南轨道交通集团有限公司 | Construction method for side-through bridge pile of stacked porous subway tunnel |
| CN112610255A (en) * | 2020-12-11 | 2021-04-06 | 中铁二十局集团有限公司 | Tunnel construction method for penetrating through weak and broken surrounding rock |
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