CN1124320A - Prefabricated assembly steel reinforced concrete tunnel and tunnel construction technology - Google Patents
Prefabricated assembly steel reinforced concrete tunnel and tunnel construction technology Download PDFInfo
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- CN1124320A CN1124320A CN 94113010 CN94113010A CN1124320A CN 1124320 A CN1124320 A CN 1124320A CN 94113010 CN94113010 CN 94113010 CN 94113010 A CN94113010 A CN 94113010A CN 1124320 A CN1124320 A CN 1124320A
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Abstract
The tunnel is assembled by fixing many tunnel elements each of which is assembled by fixing the top arc steel concrete arched member and two side wall-board members, the gap between the member and its peripheral soil is filled with small aggregate dry concrete. The construction process consists of location setting-work pit construction (containing hoisting frame)-comprehensive operation of tunnelling and assembling which consists of mapping the contour position of the tunnel-digging he soil in the contour and leveling the periphery of the contour-installing the member-temperary support of member-welding-filling the gap tightly-disassembling the support. Said invention is specially suitable for laying underground pipeline to pass through the section of an area unable for open-excavation.
Description
The present invention relates to a kind of prefabricated assembling type reinforced concrete tunnel and construction technology thereof, use when being particularly suitable for laying underground utilities (as: cable, plumbing, natural gas line etc.) and passing through town and country and can not excavate location (as urban and rural buildings thing, highway, railway, overpass bridge etc.).
At present, existing to solve the job practices that underground utilities pass through " can not excavate the location " mainly be " pipe jacking method ", promptly with large-tonnage jack with the high strength pipe by force jacking pass through and can not excavate the location.This job practices is had relatively high expectations to used tubing and equipment, and fetch earth and in pipe, carry out, working space is too little, the deviation of axis correction, absolute altitude is too difficult (because of heading into the pipeline in the soil, be close to by soil around it, almost can't be again move left and right up and down), this deviation is easy to produce " adverse slope " especially for drainage works.Therefore this job practices exists the expense height, and efficient is low, and quality is difficult to obtain the shortcoming of guarantee.
At the shortcoming that above-mentioned prior art exists, the object of the present invention is to provide a kind of being convenient to construct, and can effectively improve speed of application and quality, reduce the prefabricated assembling type reinforced concrete tunnel and the construction technology thereof of construction cost.
The object of the present invention is achieved like this: this prefabricated assembled tunnel is made up of the unit, tunnel that is fixed together, each unit, tunnel is made up of the arch steel concrete arch member at top and the steel concrete wallboard members fixed installation of both sides respectively, fills the little aggregate concrete of dry in the gap of member and peripheral soil.
Bottom surface in the tunnel also can be provided with the cast-in-situ concrete leveling layer, is beneficial to the pipe engineering construction that " gradient " had higher requirements.Engineering as no this item requires can not be provided with this leveling layer.
The construction technology in this prefabricated assembling type reinforced concrete tunnel comprises location unwrapping wire → working pit construction (containing hoisting frame) → steps such as pick peace synthetic job, and its pick peace synthetic job comprises: survey and mark the wide interior earth of tunnel contour position → excavations and rock → equating outline perimeter → prefabricated tunnel component → member is installed temporarily support → member and weld → be used for the space → operations such as dismounting support between rigid ossiculum material concrete jam-pack member and the peripheral soil.This technology is to adopt to excavate the construction that one section prefabricated unit of one section installation are finished whole tunnel.
Because the present invention has utilized reinforced concrete arch well-formed's vertical load, with less thin prefabricated units to obtain bigger space, thereby make construction cost of the present invention reduce to 1/tens of " push pipe " construction, consuming time only is about 40 percent of " push pipe " construction, and its axis and absolute altitude are easy accent state, help guaranteeing construction quality; The present invention compares with " push pipe " technology that to have a cost low in a word, work efficiency height, the advantage that construction quality is good and safe and reliable.
Below in conjunction with accompanying drawing the present invention and embodiment are elaborated:
Fig. 1 is a tunnel structure schematic diagram of the present invention.
Fig. 2 is for implementing the process chart in tunnel of the present invention.
Fig. 3 is the flow chart of pick peace synthetic job among Fig. 2.
Form by fixing (welding) unit, tunnel together referring to Fig. 1 tunnel 1 of the present invention, each unit, tunnel is made up of the arch steel concrete member 2 at top and steel concrete wallboard members 3 welded and installed of both sides respectively, fill dry aggregate concrete 4 in the gap of member 2,3 and peripheral soil, the bottom in tunnel 1 can be provided with cast-in-situ concrete leveling layer 5.
Referring to Fig. 2, Fig. 3: existing is that example illustrates construction technology of the present invention with certain city's construction PVC reinforced concrete sewer pipe engineering: this engine request passes through 4 meters wide lanes of a treaty from the about 5.2 meters depths of below ground, the east side, lane is the building of high about 40 meters and band basement, have an appointment 15 meters high and its nearly lane body of wall of west side existed the irregular cracks of 1-20 mm wide, the geology of ground at the bottom of the pipeline coagulation soil padding is: backfill-wattenshlick sand-gradually hard natural consolidation sandy gravel, plan to build in the sand pebble layer of pipeline below phreatic line the absolute altitude of phreatic line: ± 0.000.
At the geologic structure and the engine request of above-mentioned complexity, details are as follows for its job practices:
1. location unwrapping wire
2. working pit construction (containing hoisting frame)
A. determine effective usable floor area of working pit according to tunnel cross-section and purposes, can be calculated as follows:
Width: I: tunnel width+1 * 1.1 meter;
II: pipeline maximum outside diameter+2 * 1.5 meter
Get bigger value in two result of calculations
Length: I: length of tunnel * 2.5
Pipeline single-piece length maximum value+2 meters
Get one bigger in two result of calculations
This engineering tunnel headroom width is 1.2 meters, and headway is 1.4 meters, and the pipeline maximum outside diameter is 804mm, and single-piece length maximum value is 1.28 meters, so working pit wide is 3.8 meters, and length is 3.5 meters.
B. if phreatic line is higher than absolute altitude at the bottom of the hole of working pit, then need to establish one and be not less than long * wide * dark=sump of 1 * 0.6 * 0.8 meter at one jiao that helps most pump drainage water, be used for the suction nozzle work of pump; Because the working pit of this project is lower than phreatic line, thereby also need excavate sump.
C. if the soil property at working pit place can not keep nature cliff state for a long time, the Tu Bi that then tackles working pit carries out firm and appropriate support, and this project geology upper strata is that the backfill tide coagulates sand, so need firmly support.
D. the vertical transport machine can select hoisting frame outside the hole devices such as mine timbering, mobile crane to be set, and selects safe, economic vertical transferring apparatus in conjunction with on-the-spot available construction plant area.
3. pick peace synthetic job:
Pick peace synthetic job is undertaken by following flow process:
A. survey and mark the tunnel contour position.
B. excavate wide in earth and rock: must be noted that in this step 1. and should use air compressor machine force feed fresh air in the hole when tunnel pick peace drilling depth surpasses 5 meters, being out of order as if air compressor machine later on then should Suspend Job.2. the hole intraoral illumination must adopt 24-36 volt-amperes of movable electric lights of full voltage.3. four jiaos of each working pit of constructing night must be installed warning lamp with plan safety.4. about two meters firm safe protective railing should be set apart from working pit.5. the cubic metre of earth and stone excavates in the tunnel, must follow periphery and reserve 40-50 millimeters principle.
C. equating outline perimeter: after treating that main native stone is dug up,, make member that positioning is installed and accurately form on one side an avris amount is repaired again.
D., tunnel component is installed: must check and verify axis before 1. member is installed and absolute altitude is all errorless, otherwise must the row finishing transpose.2. used tunnel component, its concrete strength must reach the design strength rear and allow to be used for to install.3. every joint tunnel component when mounted must alignment axis and absolute altitude, good and sound after, with the axis mark atop, absolute altitude is labeled in side.
E. member supports temporarily.
F. member welding.Must check the axis of member installation and absolute altitude before the welding waits to examine and can carry out weld job after errorless.
G. use the space between dry ossiculum material concrete jam-pack member and the peripheral soil.
H. remove and support.
I. carry out next section operation.
Extremely above-mentioned step has only been finished constructing tunnel of the present invention, consider this construction embodiment requirement installation PVC reinforced concrete sewer pipe, also need in the bottom surface, tunnel a cast-in-place layer concrete as leveling layer, so that guarantee the installation of gutter, when install one the joint gutter after its outside and the tunnel between concreting integument (designing requirement), with the working pit backfilling compaction, can be delivered for use after the acceptance(check) on inspection behind the end conduit to be installed.
The mentioned job practices of this construction embodiment is not specifically noted part, is to have adopted existing construction technology.
Cable or other pipeline also can conveniently be installed in the gap in gutter and tunnel in the present embodiment.
The present invention only is suitable for using under following soil property state:
1. the soil property that can scrape out at least 1 meter soil cave and can not take place to collapse certainly.
2. the stratum that phreatic source water layer is in hard and does not soften because of being immersed in water.
3. in shale or the rock stratum.
4. in when construction, can make the external force acquisition value of tunnel Tu Ding level off to zero and not only can scrape out at least 5000 millimeters soil cave but also the unlikely expense that heightens.
Following soil property state used down during the present invention was not suitable for:
1. drift sand formation
2. soil layer easily collapses: (as building waste layer, clean sand, coagulating layer without loose soil layer, the silt of compacting)
Claims (3)
1. prefabricated assembling type reinforced concrete tunnel, it is characterized in that: this prefabricated assembling type reinforced concrete tunnel is made up of the unit, tunnel that is fixed together, each unit, tunnel is made up of the arch steel concrete arch member at top and the steel concrete wallboard members fixed installation of both sides respectively, fills the little aggregate concrete of dry in the gap of member and peripheral soil.
2. prefabricated assembling type reinforced concrete according to claim 1 tunnel is characterized in that: the bottom surface, tunnel also is provided with the cast-in-situ concrete leveling layer.
3. the construction technology of a prefabricated assembling type reinforced concrete, comprise: location → working pit construction (contain and propose open-shelf) → steps such as pick peace synthetic job, it is characterized in that: pick peace synthetic job comprises: survey and mark tunnel contour position → excavations and coagulate space → dismounting support between soil and rock → equating outline perimeter → prefabricated tunnel component → member is installed temporarily support → member welding → usefulness dry ossiculum material concrete jam-pack member and the peripheral soil in wide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94113010A CN1041009C (en) | 1994-12-05 | 1994-12-05 | Prefabricated assembly steel reinforced concrete tunnel and tunnel construction technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94113010A CN1041009C (en) | 1994-12-05 | 1994-12-05 | Prefabricated assembly steel reinforced concrete tunnel and tunnel construction technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1124320A true CN1124320A (en) | 1996-06-12 |
| CN1041009C CN1041009C (en) | 1998-12-02 |
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ID=5036474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94113010A Expired - Fee Related CN1041009C (en) | 1994-12-05 | 1994-12-05 | Prefabricated assembly steel reinforced concrete tunnel and tunnel construction technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1041009C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587300A (en) * | 2012-03-06 | 2012-07-18 | 刘山健 | Prefabricated superposed reinforced concrete arch culvert |
| CN101668925B (en) * | 2007-02-28 | 2013-07-31 | 金承汉 | Round panel lining |
| CN103243664A (en) * | 2013-05-22 | 2013-08-14 | 安徽水利开发股份有限公司 | Large-aperture assembly-type reinforced concrete culvert member |
| CN101608547B (en) * | 2008-06-18 | 2013-12-11 | 上海奇谋能源技术开发有限公司 | Method and device for digging tunnel and preventing overbreak |
| CN104018437A (en) * | 2014-06-17 | 2014-09-03 | 安徽省交通投资集团有限责任公司 | Thin-wall annular assembly mode underground passage |
| CN105952459A (en) * | 2016-05-04 | 2016-09-21 | 中铁二十四局集团浙江工程有限公司 | Splicing-type primary support method for tunnel |
| CN110306989A (en) * | 2019-07-04 | 2019-10-08 | 中铁二十局集团第四工程有限公司 | A kind of non-open cut assembled pipe canal digging support reinforcement method |
| CN111503368A (en) * | 2020-04-10 | 2020-08-07 | 中铁十二局集团建筑安装工程有限公司 | Pipe jacking construction method under sandy gravel geological condition |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4497590A (en) * | 1982-03-08 | 1985-02-05 | Crs Group, Inc. | Tunnel lining |
| US4452549A (en) * | 1982-03-10 | 1984-06-05 | Charcon Tunnels Limited | Tunnel lining rings |
| US4940360A (en) * | 1987-07-27 | 1990-07-10 | Weholt Raymond L | Insulated tunnel liner and rehabilitation system |
-
1994
- 1994-12-05 CN CN94113010A patent/CN1041009C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101668925B (en) * | 2007-02-28 | 2013-07-31 | 金承汉 | Round panel lining |
| CN101608547B (en) * | 2008-06-18 | 2013-12-11 | 上海奇谋能源技术开发有限公司 | Method and device for digging tunnel and preventing overbreak |
| CN102587300A (en) * | 2012-03-06 | 2012-07-18 | 刘山健 | Prefabricated superposed reinforced concrete arch culvert |
| CN103243664A (en) * | 2013-05-22 | 2013-08-14 | 安徽水利开发股份有限公司 | Large-aperture assembly-type reinforced concrete culvert member |
| CN103243664B (en) * | 2013-05-22 | 2015-12-16 | 安徽水利开发股份有限公司 | The assembled steel reinforced concrete culvert component in large aperture |
| CN104018437A (en) * | 2014-06-17 | 2014-09-03 | 安徽省交通投资集团有限责任公司 | Thin-wall annular assembly mode underground passage |
| CN105952459A (en) * | 2016-05-04 | 2016-09-21 | 中铁二十四局集团浙江工程有限公司 | Splicing-type primary support method for tunnel |
| CN110306989A (en) * | 2019-07-04 | 2019-10-08 | 中铁二十局集团第四工程有限公司 | A kind of non-open cut assembled pipe canal digging support reinforcement method |
| CN111503368A (en) * | 2020-04-10 | 2020-08-07 | 中铁十二局集团建筑安装工程有限公司 | Pipe jacking construction method under sandy gravel geological condition |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1041009C (en) | 1998-12-02 |
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