CN102953737A - Construction method for inverted arch of VI-level water-enriched surrounding rock tunnel - Google Patents
Construction method for inverted arch of VI-level water-enriched surrounding rock tunnel Download PDFInfo
- Publication number
- CN102953737A CN102953737A CN2012104038047A CN201210403804A CN102953737A CN 102953737 A CN102953737 A CN 102953737A CN 2012104038047 A CN2012104038047 A CN 2012104038047A CN 201210403804 A CN201210403804 A CN 201210403804A CN 102953737 A CN102953737 A CN 102953737A
- Authority
- CN
- China
- Prior art keywords
- inverted arch
- construction
- tunnel
- surrounding rock
- inverted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Lining And Supports For Tunnels (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention belongs to the technical field of tunnel construction, and in particular relates to a construction method for an inverted arch of a VI-level water-enriched surrounding rock tunnel, which aims to solve the problems of low efficiency and high safety hazard in construction of the inverted arch of the VI-level water-enriched surrounding rock tunnel. The construction method comprises the following steps of: reinforcing a tunnel face of a lower bench temporarily, laying a layer of counter pressing rubbles on a to-be-excavated inverted arch section, and constructing steel plate piles on one side close to the tunnel face; excavating a first section of the inverted arch, erecting an inverted arc trestle bridge, and constructing preliminary bracing for the first section of the inverted arc; excavating a second section of the inverted arch, constructing preliminary bracing for the second section of the inverted arch, and meanwhile, constructing a tunnel lining for the inverted arch; filling the constructed inverted arch; and removing the steel plate piles. The construction method provided by the invention has the beneficial effects that the construction safety is high, and the hazard of tunnel face sloughing of the tunnel is lowered effectively; and the method is simple, is easy to organize, and improves a construction progress effectively on the premise of ensuring a safe step pitch.
Description
Technical field
The invention belongs to the technical field of constructing tunnel, what be specifically related to is the rich water surrounding rock tunnel of a kind of VI level inverted arch job practices.
Background technology
The rich water surrounding rock tunnel of VI level adopts the CRD method to excavate more, according to the related request of the Ministry of Railways to tunnel safety, inverted arch preliminary bracing and face distance must not be greater than 35m, the every circulation excavation of inverted arch drilling depth can not be greater than 3m, so the inverted arch operation side is very near apart from bottom excavation face distance, moulds shape because the rich water country rock of VI level belongs to stream, does not have self-stable ability, the inverted arch excavation probably causes the face wall rock destabilization, causes face to cave in.Usually adopt Full-face pouring at VI level country rock paragraph, country rock is carried out pre-reinforcement, make it fixed, increase stabilizing power.But carry out slip casting at rich water paragraph, actual effect is not good, the situation that the face wall rock destabilization in the inverted arch digging process, still often occurs, and when inverted arch excavates, because stream is moulded the unstable of shape country rock, the situation that Excavation constantly caves in appears, along with constantly caving in of Excavation, inverted arch is shaped difficult, inefficiency, and usually excavating drilling depth can exceed standard, and forms potential danger.
Summary of the invention
The objective of the invention is in order to solve inefficiency in the construction of the rich water surrounding rock tunnel of VI level inverted arch, the problem that security risk is high provides the rich water surrounding rock tunnel of a kind of VI level method that inverted arch is constructed, so that construction safety is controlled, efficient is high.
The present invention adopts following technical scheme to realize:
The construction of the rich water surrounding rock tunnel of VI level inverted arch is constructed according to following step: 1. the face of getting out of a predicament or an embarrassing situation is reinforced temporarily; 2. lay one deck back-pressure slabstone in inverted arch section to be excavated, excavating drilling depths and the close vertical tunnel axis construction steel of face one side sheet pile greater than two ring inverted arch; 3. the width of cloth carries out First inverted arch excavation about dividing, and sets up inverted arch trestle; 4. the interim side slope that excavation is formed is carried out provisional protection, the preliminary bracing of construction First inverted arch, the interim median septum of spreading; 5. the width of cloth carries out second inverted arch excavation about dividing; 6. second the inverted arch preliminary bracing of constructing, the interim median septum of spreading; 7. construct simultaneously First, second inverted arch reinforcing bar, formwork erection, installation seam waterstop, the lining cutting of construction inverted arch, the construction inverted arch is filled; 8. pull out steel sheet pile, enter next circulation inverted arch construction.
The rich water surrounding rock tunnel of the VI level inverted arch used steel sheet pile of constructing can adopt shaped steel to substitute.The degree of depth of steel sheet pile inserted to play obtains by calculating according to geological conditions and construction condition.
Every ring inverted arch excavation drilling depth can be according to the geological conditions adjustment in the construction of the rich water surrounding rock tunnel of VI level inverted arch, and its scope is 1-3m.
Provisional protection to face and interim side slope in the construction of the rich water surrounding rock tunnel of VI level inverted arch adopts sprayed mortar or slip casting or anchor net spray mode, and interim slope gradient determines that according to geological conditions ratio of slope is 1:1 ~ 1:15.
The present invention has following beneficial effect:
1, working security is high, effectively reduces the risk of tunnel tunnel face sloughing;
2, method is simple, is easy to tissue, the construction speed that satisfied under the prerequisite of safe step pitch Effective Raise.
Accompanying drawing
Fig. 1 is the rich water surrounding rock tunnel construction of VI level cross-sectional drawing,
Fig. 2 is the rich water surrounding rock tunnel construction of VI level skiagraph,
Fig. 3 is the rich water surrounding rock tunnel of VI level construction plan,
Fig. 4 is the rich water surrounding rock tunnel of VI level inverted arch construction sequence one schematic diagram,
Fig. 5 is the rich water surrounding rock tunnel of VI level inverted arch construction sequence two schematic diagrames,
Fig. 6 is the rich water surrounding rock tunnel of VI level inverted arch construction sequence three schematic diagrames,
Fig. 7 is the rich water surrounding rock tunnel of VI level inverted arch construction sequence four schematic diagrames,
Fig. 8 is the rich water surrounding rock tunnel of VI level inverted arch construction sequence five schematic diagrames,
Fig. 9 is the rich water surrounding rock tunnel of VI level inverted arch construction sequence six schematic diagrames,
Figure 10 is the rich water surrounding rock tunnel of VI level inverted arch construction sequence seven schematic diagrames,
Among the figure: 1-1 section excavation, 2-2 section excavation, 3-3 section excavation, 4-4 section excavation, 5-5 section excavation, 6-6 section excavation, 7-inverted arch excavation, the preliminary bracing of 8-arch wall, 9-arch wall secondary lining, the preliminary bracing of 10-inverted arch, the lining cutting of 11-inverted arch, the 12-inverted arch is filled, the 13-steel sheet pile, 14-advance support, 15-preliminary bracing steel arch frame, the interim side slope of 16-, 17-First inverted arch excavation, second inverted arch excavation of 18-, the interim median septum of 19-, the 20-inverted arch trestle, 21-system anchor bolt, 22-back-pressure slabstone.
The specific embodiment
By reference to the accompanying drawings the specific embodiment of the present invention is described further:
Work progress of the present invention: 1. the face of getting out of a predicament or an embarrassing situation is reinforced temporarily interim sprayed mortar or slip casting or the anchor net spray mode of adopting of reinforcing; 2. lay one deck back-pressure slabstone in inverted arch section to be excavated, be convenient to mechanical work, excavating drilling depths and the close vertical tunnel axis construction steel of face one side sheet pile greater than two ring inverted arch, steel sheet pile can adopt shaped steel to substitute, the degree of depth of steel sheet pile inserted to play obtains by calculating according to geological conditions and construction condition, and computational methods those skilled in the art can be known from prior art; 3. the width of cloth carries out First inverted arch excavation about dividing, and sets up inverted arch trestle and recovers current, and every ring inverted arch excavation drilling depth can be according to the geological conditions adjustment, and its scope is between 1-3m; 4. the interim side slope that excavation is formed is carried out provisional protection, provisional protection to interim side slope adopts sprayed mortar or slip casting or anchor net spray mode, and interim slope gradient determines that according to geological conditions ratio of slope is between 1:1 ~ 1:15, the preliminary bracing of construction First inverted arch, the interim median septum of spreading; 5. the width of cloth carries out second inverted arch excavation about dividing; 6. second the inverted arch preliminary bracing of constructing, the interim median septum of spreading; 7. construct simultaneously First, second inverted arch reinforcing bar, formwork erection, installation seam waterstop, the lining cutting of construction inverted arch, the construction inverted arch is filled; 8. pull out steel sheet pile, enter next circulation inverted arch construction.
Embodiment: for a certain tunnel invert construction of wide pearl railway, the tunnel is the rich water country rock of VI level, constructs according to following job practices.
The lower step face is carried out sprayed mortar 10cm sealing, applying forward 9m scope laying slabstone of inverted arch lining cutting termination, at distance inverted arch lining cutting 9m place construction steel sheet pile, steel sheet pile degree of depth 5m, the inverted arch in the inverted arch lining cutting termination 3-6m scope that width of cloth digging distance applies about minute excavates interim slope gradient 1:1, interim side slope is carried out sprayed mortar 8cm seals, set up inverted arch trestle, this section inverted arch preliminary bracing of constructing, spreading median septum.Inverted arch in the inverted arch lining cutting termination 0-3m scope that width of cloth digging distance applies about minute, this section inverted arch preliminary bracing of constructing, spreading median septum.Inverted arch reinforcing bar, formwork erection in the inverted arch lining cutting termination 0-6m scope that the construction distance applies, installation seam waterstop is built the lining cutting of this section inverted arch, builds this section inverted arch fill concrete.Pull out steel sheet pile, enter lower circulation inverted arch construction.
Claims (4)
1. the rich water surrounding rock tunnel of a VI level inverted arch job practices is characterized in that constructing according to following step: 1. the face of getting out of a predicament or an embarrassing situation is reinforced temporarily; 2. lay one deck back-pressure slabstone (22) in inverted arch section to be excavated, excavating drilling depths and close face one side vertical tunnel axis construction steel sheet pile (13) greater than two ring inverted arch; 3. the width of cloth carries out First inverted arch excavation (17) about dividing, and sets up inverted arch trestle (20); 4. the interim side slope (16) that excavation is formed is carried out provisional protection, construction First inverted arch preliminary bracing (10), the interim median septum of spreading (19); 5. the width of cloth carries out second inverted arch excavation (18) about dividing; 6. second the inverted arch preliminary bracing (10) of constructing, the interim median septum of spreading (19); 7. construct simultaneously First, second inverted arch reinforcing bar, formwork erection, installation seam waterstop, construction inverted arch lining cutting (11), the construction inverted arch is filled (12); 8. pull out steel sheet pile, enter next circulation inverted arch construction.
2. the rich water surrounding rock tunnel of VI level according to claim 1 inverted arch job practices is characterized in that steel sheet pile (13) replaces with shaped steel.
3. the rich water surrounding rock tunnel of VI level according to claim 1 and 2 inverted arch job practices is characterized in that every ring inverted arch excavation drilling depth scope is 1-3m.
4. the rich water surrounding rock tunnel of VI level according to claim 3 inverted arch job practices is characterized in that the provisional protection of face and interim side slope (16) is adopted sprayed mortar or slip casting or anchor net spray mode, and interim side slope (16) ratio of slope is 1:1 ~ 1:15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210403804.7A CN102953737B (en) | 2012-10-22 | 2012-10-22 | Construction method for inverted arch of VI-level water-enriched surrounding rock tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210403804.7A CN102953737B (en) | 2012-10-22 | 2012-10-22 | Construction method for inverted arch of VI-level water-enriched surrounding rock tunnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102953737A true CN102953737A (en) | 2013-03-06 |
| CN102953737B CN102953737B (en) | 2015-05-13 |
Family
ID=47763066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210403804.7A Active CN102953737B (en) | 2012-10-22 | 2012-10-22 | Construction method for inverted arch of VI-level water-enriched surrounding rock tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102953737B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669220A (en) * | 2013-12-17 | 2014-03-26 | 中铁隧道集团二处有限公司 | Installing method for long, large and light-weight heavy-load rail-crossing trestle in tunnel inverted arch construction |
| CN104500093A (en) * | 2014-12-16 | 2015-04-08 | 湖南科技大学 | Method for positioning temporary middle walls in large-section tunnel supporting structure of formation with soft top and hard bottom |
| CN104727303A (en) * | 2015-04-03 | 2015-06-24 | 王燏斌 | I-type sheet pile for tunnel construction |
| CN106812542A (en) * | 2017-01-22 | 2017-06-09 | 济南轨道交通集团有限公司 | A kind of use prefabricated components and preceding slotting shield build the construction method of subway station |
| CN107725073A (en) * | 2017-11-06 | 2018-02-23 | 中建八局第建设有限公司 | A kind of simple more straddle type tunnel inverted arch trestle structure and construction methods |
| CN108643935A (en) * | 2018-04-27 | 2018-10-12 | 中铁六局集团天津铁路建设有限公司 | The construction method in tunnel under rich water shallow embedding geology |
| CN109578008A (en) * | 2018-11-27 | 2019-04-05 | 中铁十局集团第五工程有限公司 | The double trestle opposite direction material-flow methods of tunnel inverted arch |
| CN110630329A (en) * | 2019-09-09 | 2019-12-31 | 中国铁道科学研究院集团有限公司电子计算技术研究所 | Early warning method and device for tunnel excavation safety step |
| JP2020076248A (en) * | 2018-11-08 | 2020-05-21 | 岐阜工業株式会社 | Pier device of tunnel |
| CN112880762A (en) * | 2021-02-19 | 2021-06-01 | 四川省水文水资源勘测局 | Flow measurement method for water diversion and greening in arid region |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060084203A (en) * | 2005-01-19 | 2006-07-24 | 주식회사 하이콘엔지니어링 | Method for constructing 2-arch tunnel using steel pile support |
| CN101105131A (en) * | 2007-08-17 | 2008-01-16 | 中铁十二局集团有限公司 | Tunnel dredging method suitable for railway large section IV, V class rock tunnel |
| CN101251014A (en) * | 2008-04-14 | 2008-08-27 | 中铁隧道集团有限公司 | Method for wholly mining tunnel invert foundation separating segment and placing concrete as well as inverted arch trestle device |
| CN102562075A (en) * | 2012-03-09 | 2012-07-11 | 中交第二公路工程局有限公司 | Large cross-section weak surrounding rock tunnel three-step and six-part short-distance construction method |
| CN102562099A (en) * | 2012-03-15 | 2012-07-11 | 中铁二十三局集团第四工程有限公司 | Method for carrying out rapid face excavation construction of loess tunnel by double rows of small conduits |
-
2012
- 2012-10-22 CN CN201210403804.7A patent/CN102953737B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060084203A (en) * | 2005-01-19 | 2006-07-24 | 주식회사 하이콘엔지니어링 | Method for constructing 2-arch tunnel using steel pile support |
| CN101105131A (en) * | 2007-08-17 | 2008-01-16 | 中铁十二局集团有限公司 | Tunnel dredging method suitable for railway large section IV, V class rock tunnel |
| CN101251014A (en) * | 2008-04-14 | 2008-08-27 | 中铁隧道集团有限公司 | Method for wholly mining tunnel invert foundation separating segment and placing concrete as well as inverted arch trestle device |
| CN102562075A (en) * | 2012-03-09 | 2012-07-11 | 中交第二公路工程局有限公司 | Large cross-section weak surrounding rock tunnel three-step and six-part short-distance construction method |
| CN102562099A (en) * | 2012-03-15 | 2012-07-11 | 中铁二十三局集团第四工程有限公司 | Method for carrying out rapid face excavation construction of loess tunnel by double rows of small conduits |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669220A (en) * | 2013-12-17 | 2014-03-26 | 中铁隧道集团二处有限公司 | Installing method for long, large and light-weight heavy-load rail-crossing trestle in tunnel inverted arch construction |
| CN104500093A (en) * | 2014-12-16 | 2015-04-08 | 湖南科技大学 | Method for positioning temporary middle walls in large-section tunnel supporting structure of formation with soft top and hard bottom |
| CN104727303A (en) * | 2015-04-03 | 2015-06-24 | 王燏斌 | I-type sheet pile for tunnel construction |
| CN104727303B (en) * | 2015-04-03 | 2016-05-18 | 王燏斌 | I template stake for constructing tunnel |
| CN106812542B (en) * | 2017-01-22 | 2019-11-22 | 济南轨道交通集团有限公司 | It is a kind of using prefabricated components and preceding slotting shield builds the construction method of subway station |
| CN106812542A (en) * | 2017-01-22 | 2017-06-09 | 济南轨道交通集团有限公司 | A kind of use prefabricated components and preceding slotting shield build the construction method of subway station |
| CN107725073A (en) * | 2017-11-06 | 2018-02-23 | 中建八局第建设有限公司 | A kind of simple more straddle type tunnel inverted arch trestle structure and construction methods |
| CN107725073B (en) * | 2017-11-06 | 2024-04-02 | 中建八局第一建设有限公司 | Tunnel construction method based on simple trestle |
| CN108643935A (en) * | 2018-04-27 | 2018-10-12 | 中铁六局集团天津铁路建设有限公司 | The construction method in tunnel under rich water shallow embedding geology |
| JP2020076248A (en) * | 2018-11-08 | 2020-05-21 | 岐阜工業株式会社 | Pier device of tunnel |
| CN109578008A (en) * | 2018-11-27 | 2019-04-05 | 中铁十局集团第五工程有限公司 | The double trestle opposite direction material-flow methods of tunnel inverted arch |
| CN110630329A (en) * | 2019-09-09 | 2019-12-31 | 中国铁道科学研究院集团有限公司电子计算技术研究所 | Early warning method and device for tunnel excavation safety step |
| CN110630329B (en) * | 2019-09-09 | 2021-10-22 | 中国铁道科学研究院集团有限公司电子计算技术研究所 | Early warning method and device for tunnel excavation safety step |
| CN112880762A (en) * | 2021-02-19 | 2021-06-01 | 四川省水文水资源勘测局 | Flow measurement method for water diversion and greening in arid region |
| CN112880762B (en) * | 2021-02-19 | 2021-09-24 | 四川省水文水资源勘测局 | Flow measurement method for water diversion and greening in arid region |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102953737B (en) | 2015-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102953737B (en) | Construction method for inverted arch of VI-level water-enriched surrounding rock tunnel | |
| CN106703814B (en) | Tunneling subway station hole pile construction method | |
| CN106761778B (en) | A kind of underground digging in subway station construction technology suitable for upper-soft lower-hard ground | |
| CN108005664A (en) | A kind of hole pile construction method of platform structure | |
| CN108442943A (en) | A kind of branch-cut bridge section tunnel and Double side heading method construction method | |
| CN102061923B (en) | Tunnel construction method capable of protecting existing building | |
| CN205134331U (en) | Foundation ditch excavation bearing structure | |
| CN103696784B (en) | Large-diameter long pipe curtain construction method for shallowly-buried large-span under-tunnel-passing architectural structure | |
| CN104612698A (en) | Method for constructing upper step middle partition wall of shallow-buried excavation tunnel | |
| CN107313431A (en) | Close on not contour foundation ditch method for synchronously constructing | |
| CN110700841B (en) | Double-side-wall guide pit type excavation method for tunnel excavation | |
| CN203905018U (en) | Supporting and protecting system with combined double-row piles in combination with oblique anchors | |
| CN105587320B (en) | Rich water sand-pebble layer abnormal shape deep shaft structural system and its construction method | |
| CN108518229A (en) | Large deformation weak broken wall rock outsized section tunnel excavation supporting structure and construction method | |
| CN109026020B (en) | Water-rich tunnel karst cave treatment and excavation method | |
| CN109403338A (en) | Underground continuous wall adopting assembled lattice section steel TRD construction method and construction method thereof | |
| CN102400694A (en) | Reinforcement method for combined part of shield tunnel and mining-method tunnel | |
| CN104947681A (en) | Super large super deep basement ground pit construction method | |
| CN103089270A (en) | Excavating method suitable for large section loess tunnels | |
| CN108374663B (en) | Twice-molding construction method for sandy gravel geological tunnel | |
| CN208236427U (en) | Large deformation weak broken wall rock outsized section tunnel excavation supporting structure | |
| CN109209443A (en) | A kind of construction method of breaking surrounding rock tunnel structure | |
| CN104141500A (en) | Hardened sand gravel stratum cavern construction method | |
| CN115539048A (en) | Construction method for shallow-buried bias tunnel portal | |
| CN109973115B (en) | Construction method for drainage of vault of tunnel in karst area |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170301 Address after: 030001 Taiyuan City, Shanxi meet the main street, No. 269 Patentee after: China Railway Third Engineering Co., Ltd. Patentee after: Three bridge and Tunnel Engineering Co. Ltd. group Address before: 030001 Yingze street, Shanxi, No. 269, No. Patentee before: China Railway Third Engineering Co., Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 030001 Yingze street, Shanxi, No. 269, No. Co-patentee after: Three bridge and Tunnel Engineering Co. Ltd. group Patentee after: China Railway Third Engineering Co., Ltd. Address before: 030001 Taiyuan City, Shanxi meet the main street, No. 269 Co-patentee before: Three bridge and Tunnel Engineering Co. Ltd. group Patentee before: China Railway Third Engineering Co., Ltd. |