CN107675628B - It is worn on urban road frame bridge and wears railway in operation jacking construction method under operated subway - Google Patents
It is worn on urban road frame bridge and wears railway in operation jacking construction method under operated subway Download PDFInfo
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- CN107675628B CN107675628B CN201710946666.XA CN201710946666A CN107675628B CN 107675628 B CN107675628 B CN 107675628B CN 201710946666 A CN201710946666 A CN 201710946666A CN 107675628 B CN107675628 B CN 107675628B
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- 238000010276 construction Methods 0.000 title claims abstract description 56
- 238000005728 strengthening Methods 0.000 claims abstract description 15
- 238000000034 methods Methods 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 35
- 239000010959 steel Substances 0.000 claims description 35
- 239000002002 slurries Substances 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injections Substances 0.000 claims description 12
- 230000000875 corresponding Effects 0.000 claims description 7
- 230000003014 reinforcing Effects 0.000 claims description 7
- 239000004115 Sodium Silicates Substances 0.000 claims description 6
- 239000010410 layers Substances 0.000 claims description 6
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 6
- 238000009966 trimming Methods 0.000 claims description 6
- 210000002966 Serum Anatomy 0.000 claims description 5
- 235000010676 Ocimum basilicum Nutrition 0.000 claims description 3
- 239000004568 cements Substances 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000463 materials Substances 0.000 claims description 3
- 238000009417 prefabrication Methods 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 210000001503 Joints Anatomy 0.000 claims 1
- 240000003982 Ocimum basilicum Species 0.000 claims 1
- 238000004642 transportation engineering Methods 0.000 abstract description 4
- 238000007667 floating Methods 0.000 abstract description 2
- 241001529734 Ocimum Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0nMS4wJyBlbmNvZGluZz0naXNvLTg4NTktMSc/Pgo8c3ZnIHZlcnNpb249JzEuMScgYmFzZVByb2ZpbGU9J2Z1bGwnCiAgICAgICAgICAgICAgeG1sbnM9J2h0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnJwogICAgICAgICAgICAgICAgICAgICAgeG1sbnM6cmRraXQ9J2h0dHA6Ly93d3cucmRraXQub3JnL3htbCcKICAgICAgICAgICAgICAgICAgICAgIHhtbG5zOnhsaW5rPSdodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rJwogICAgICAgICAgICAgICAgICB4bWw6c3BhY2U9J3ByZXNlcnZlJwp3aWR0aD0nMzAwcHgnIGhlaWdodD0nMzAwcHgnIHZpZXdCb3g9JzAgMCAzMDAgMzAwJz4KPCEtLSBFTkQgT0YgSEVBREVSIC0tPgo8cmVjdCBzdHlsZT0nb3BhY2l0eToxLjA7ZmlsbDojRkZGRkZGO3N0cm9rZTpub25lJyB3aWR0aD0nMzAwJyBoZWlnaHQ9JzMwMCcgeD0nMCcgeT0nMCc+IDwvcmVjdD4KPHRleHQgZG9taW5hbnQtYmFzZWxpbmU9ImNlbnRyYWwiIHRleHQtYW5jaG9yPSJzdGFydCIgeD0nMTI1Ljk4MScgeT0nMTU2JyBzdHlsZT0nZm9udC1zaXplOjQwcHg7Zm9udC1zdHlsZTpub3JtYWw7Zm9udC13ZWlnaHQ6bm9ybWFsO2ZpbGwtb3BhY2l0eToxO3N0cm9rZTpub25lO2ZvbnQtZmFtaWx5OnNhbnMtc2VyaWY7ZmlsbDojM0I0MTQzJyA+PHRzcGFuPkZlPC90c3Bhbj48L3RleHQ+Cjwvc3ZnPgo= data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0nMS4wJyBlbmNvZGluZz0naXNvLTg4NTktMSc/Pgo8c3ZnIHZlcnNpb249JzEuMScgYmFzZVByb2ZpbGU9J2Z1bGwnCiAgICAgICAgICAgICAgeG1sbnM9J2h0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnJwogICAgICAgICAgICAgICAgICAgICAgeG1sbnM6cmRraXQ9J2h0dHA6Ly93d3cucmRraXQub3JnL3htbCcKICAgICAgICAgICAgICAgICAgICAgIHhtbG5zOnhsaW5rPSdodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rJwogICAgICAgICAgICAgICAgICB4bWw6c3BhY2U9J3ByZXNlcnZlJwp3aWR0aD0nODVweCcgaGVpZ2h0PSc4NXB4JyB2aWV3Qm94PScwIDAgODUgODUnPgo8IS0tIEVORCBPRiBIRUFERVIgLS0+CjxyZWN0IHN0eWxlPSdvcGFjaXR5OjEuMDtmaWxsOiNGRkZGRkY7c3Ryb2tlOm5vbmUnIHdpZHRoPSc4NScgaGVpZ2h0PSc4NScgeD0nMCcgeT0nMCc+IDwvcmVjdD4KPHRleHQgZG9taW5hbnQtYmFzZWxpbmU9ImNlbnRyYWwiIHRleHQtYW5jaG9yPSJzdGFydCIgeD0nMTguNzk5NicgeT0nNDcuNzk1NScgc3R5bGU9J2ZvbnQtc2l6ZTozOHB4O2ZvbnQtc3R5bGU6bm9ybWFsO2ZvbnQtd2VpZ2h0Om5vcm1hbDtmaWxsLW9wYWNpdHk6MTtzdHJva2U6bm9uZTtmb250LWZhbWlseTpzYW5zLXNlcmlmO2ZpbGw6IzNCNDE0MycgPjx0c3Bhbj5GZTwvdHNwYW4+PC90ZXh0Pgo8L3N2Zz4K [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
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- 239000004567 concrete Substances 0.000 description 1
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- 238000005516 engineering processes Methods 0.000 description 1
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- 239000007788 liquids Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D1/00—Bridges in general
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/80—Ground anchors
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/0023—Slurry
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/20—Miscellaneous comprising details of connection between elements
Abstract
Description
Technical field
The invention belongs to Municipal Engineering Construction technical fields, more particularly to wearing operation on a kind of urban road frame bridge Railway in operation jacking construction method is worn under iron.
Background technique
With the rapid development of urban road construction, it is more and more to create the case where road intersects with existing railway.By ground The limitation of shape condition usually uses the form of level crossing, although such method is made when road needs to pass through existing railway in the past Valence is low, speed is fast, security risk is small, but to interfere with each other situation serious for the infall of the road of later period operation and existing railway；Road Road, which is used, crosses over existing railway form, the erection by swing derived by upper straddle type bridge, cast-in-place cantilever method and prefabricated across overpass The shortcomings that roof beam structure construction methods such as tries and also do not occupy the minority, such method is that occupied area is larger, long in time limit, dry to external environment It disturbs greatly, construction safety risk is higher.And it is no lack of successful case using jacking constructed frame bridge construction party rule, it both can guarantee existing The safe operation of railway, and road can be made to pass through existing railway.
For an economically developed line city, along with the covering of urban mass transit network, road passes through the case of subway Example also happens occasionally, and various correlation engineering methods also occur therewith, and construction method is mostly several construction methods of above-mentioned introduction.
In the case where certain is special, road passes through plan-position, and existing railway is just passed crosswise with subway, existing iron It is located underground with existing railway oblique that road is located at ground, subway tunnel structure, between existing railway and subway tunnel structure there are Enough construction headroom, the building height that the certifiable road of present situation condition passes through place's structure can be used under road in such cases The jacking construction method that subway is worn on existing railway is worn, such construction method compares other methods, takes up an area less, short time limit, expense It is lower, build up after three kinds of traffic forms do not interfere with each other.Before jacking construction and after construction, which corresponding construction method need to be taken, Influence of the off-load to existing railway and subway is excavated to reduce jacking, it is ensured that the transportation safety of existing railway and railway, it has also become Put the important topic in face of those skilled in the art.
Summary of the invention
To solve the above-mentioned problems, the purpose of the present invention is to provide wear under operated subway on a kind of urban road frame bridge Wear railway in operation jacking construction method.
In order to achieve the above object, it is worn on urban road frame bridge provided by the invention and wears railway in operation top under operated subway Include the following steps carried out in order into construction method:
1) the Prefabricated road frame bridge first in the foundation pit outside existing railway and subway protection area, in prefabrication process, Multiple holes for through anchor pole are reserved by predetermined position on the bottom plate of road frame bridge, then at the rear of road frame bridge Prefabricated jacking back；
2) multiple steel ingot blocks are completely spread in the road frame bridge backplate surface of prefabricated completion to increase counterweight, adjacent steel ingot it Between there are the expansion joint of 20mm, and expansion joint uses the encapsulating of resinae caulking material；Meanwhile it being set at the center of each steel ingot block There is an obturator hole；
3) it is made on the outside of route in the range of being influenced on existing railway by jacking and makes branch between fender pile, two routes Support stake, the basil locate production in place and resists traversing stake before road frame bridge, formation by fender pile, support stake and resist that traversing stake constitutes three Stake support system；
4) grouting operation is carried out to form subgrade strengthening area by the roadbed in jacking coverage on existing railway；Roadbed The width of stabilization zone is to extend outwardly respectively 10m after road frame bridge is in place from the two sidewalls of road frame bridge；
5) it is influenced in the stratum between subway tunnel structure and existing railway by road Framed underpass bridge anterior-posterior plane In range, grouting operation is carried out to form grouting and reinforcing layer to the stratum being located at below road frame bridge bottom plate；
6) on the region influenced on existing railway by jacking using 3-5-3 button rail add the track strengthening system 7 of beam in length and breadth into Row is reinforced；
7) underground railway track influenced by jacking is protected using rail distance rod；
8) more jack are set between the rear end face of road frame bridge and jacking back, then using along jacking direction The jacking of jacking road frame bridge when excavating subgrade strengthening area and Demolition Construction coverage three support systems of inner part By road Framed underpass bridge to predetermined position, each jacking and shoveling drilling depth are up to 1.0m；
9) after road Framed underpass bridge is in place, with will the more anchor poles in blossom type arrangement from the obturator hole on steel ingot block It is set vertically downward in corresponding hole on hole and road frame bridge bottom plate, and carries out deep hole grouting behaviour around anchor pole Make；After injection slurry solidifies and reaches design strength, one piece of perforated steel plate is placed on the corresponding steel ingot block of anchor pole, is then used Nut tightens anchor pole and steel plate, and the upper end that finally will exceed steel ingot block surface 80mm is cut off using angle grinder；
10) track strengthening system is removed, ballast is backfilled, restores the structure of existing railway；In work progress and construction is completed Afterwards in a period of time, the associated technical parameters of existing railway are monitored, discovery deviation takes trimming measure in time, by one A rainy season, and every technical parameter is stablized, no significant change, monitoring can stop；
11) rail distance rod is removed, the structure of underground railway track is restored；In work progress and after the completion of construction in a period of time, The associated technical parameters of structure of the subway are monitored, discovery deviation takes trimming measure in time, after construction in 1 year, to Every technical parameter is relatively stable, and no significant change, monitoring can stop.
In step 1), the hole diameter on the road frame bridge bottom plate is 75mm.
In step 2), the steel ingot block is cuboid structure, having a size of 480mm × 480mm × 500mm, is used Q235 steel are made, and the diameter of obturator hole is 50mm.
In step 3), the fender pile supports stake and traversing stake is resisted to be all made of Ф 1250mm REINFORCED CONCRETE ARTIFICIAL Caisson structure type, depth are 13~15m.
In step 4), the injection slurry uses cement-sodium silicate mixed serum.
In step 5), the planar range of the grouting and reinforcing layer is road Framed underpass bridge anterior-posterior plane coverage Outer 2m, with a thickness of 2m below road frame bridge bottom plate, injection slurry uses cement-sodium silicate mixed serum.
In step 9), the size Ф 42mm of the anchor pole, spacing 1500mm, lower end is on subway tunnel structure Square 2m；Spacing when deep hole grouting operates between injected hole is 100-150mm, and injection slurry uses cement slurry；The size of steel plate is 200mm×200mm×20mm；The specification of nut is Ф 42mm.
The effect that railway in operation jacking construction method is worn under operated subway is worn on urban road frame bridge provided by the invention: Road frame bridge is fundamentally solved with the feasibility for wearing subway on existing railway is worn at present, a series of technology is taken to arrange It applies, it is ensured that the transportation safety of construction overall process existing railway and subway.Other construction methods in background technique are compared, are constructed Efficiency improves, and security risk reduces, saving construction cost, construction method is easily operated and controls.Existing railway structure is taken to add Gu and a series of technical measures such as subway anti-floating, all kinds of technical measures are mutually relied on, are connected each other, finally by road frame bridge, Three structures of existing railway and subway form the globality structure for not interfereing with each other, connecting each other.
Detailed description of the invention
Fig. 1 is that railway in operation jacking is worn under operated subway using wearing on urban road frame bridge provided by the invention before jacking Construction State plan view when construction method；
Fig. 2 is that railway in operation jacking is worn under operated subway using wearing on urban road frame bridge provided by the invention before jacking Construction State side view when construction method；
Fig. 3 is that railway in operation jacking is worn under operated subway using wearing on urban road frame bridge provided by the invention after jacking Construction State side view when construction method；
Fig. 4 is that railway in operation jacking is worn under operated subway using wearing on urban road frame bridge provided by the invention after jacking Construction State transverse direction schematic diagram when construction method.
Specific embodiment
It is worn under operated subway to being worn on urban road frame bridge provided by the invention in the following with reference to the drawings and specific embodiments Railway in operation jacking construction method is described in detail.
Certain city road planning is city secondary distributor road, and red line wide 40m wears existing railway, Shang Chuan metro shield area under road Between, road frame bridge is three hole reinforced concrete structure forms, and bottom plate bottom surface is 12m apart from metro shield structure top.The engineering Using construction method provided by the invention.
As shown in Fig. 1-Fig. 4, is worn on urban road frame bridge provided by the invention and wear railway in operation jacking under operated subway Construction method includes the following steps carried out in order:
1) the Prefabricated road frame bridge 1 first in the foundation pit outside existing railway 11 and subway protection area, in prefabrication process, Multiple holes for through anchor pole are reserved by predetermined position on the bottom plate of road frame bridge 1, then in road frame bridge 1 The prefabricated jacking back 2 in rear, and guarantee that the center line of road frame bridge 1 is vertical with the preceding facade of jacking back 2, jacking back 2 Structure type be computed determination；In the present embodiment, the hole diameter on 1 bottom plate of road frame bridge is 75mm.
2) multiple steel ingot blocks 3 are completely spread in 1 backplate surface of road frame bridge of prefabricated completion to increase counterweight, to balance jacking Excavate off-load and caused by subway tunnel structure buoyancy increase；3 rising-heat contracting-cold of steel ingot block in order to prevent, adjacent steel ingot 3 it Between there are the expansion joint of 20mm, and expansion joint uses the encapsulating of resinae caulking material；Meanwhile it being inserted into be easy to lift with the later period Anchor pole is equipped with an obturator hole at the center of each steel ingot block 3；In the present embodiment, the steel ingot block 3 is cuboid Structure is made having a size of 480mm × 480mm × 500mm of Q235 steel, and the diameter of obturator hole is 50mm.
3) it makes between fender pile, two routes and makes on the outside of route in the range of being influenced on existing railway 11 by jacking The basil, which is located to make in place, before support stake, road frame bridge 1 resists traversing stake, is formed by fender pile, supports stake and traversing stake is resisted to constitute Three support systems 4；In the present embodiment, the fender pile, support stake and traversing stake resisted to be all made of Ф 1250mm reinforcing bar Concrete Manual excavated pile structure form, depth are 13~15m；
4) grouting operation is carried out to form subgrade strengthening area 5 by the roadbed in jacking coverage on existing railway 11； The width in subgrade strengthening area 5 is to extend outwardly respectively 10m after road frame bridge 1 is in place from the two sidewalls of road frame bridge 1, to increase The overall stability of 11 roadbed of strong existing railway prevents from destroying the steady of railway reinforced system 7 because of roadbed landslide in jack-in process It is qualitative；In the present embodiment, the injection slurry uses cement-sodium silicate mixed serum, and grouting parameter is determined according to test；
5) it is influenced in the stratum between subway tunnel structure and existing railway 11 by 1 jacking anterior-posterior plane of road frame bridge In the range of, grouting operation is carried out to form grouting and reinforcing layer 6, purpose to the stratum being located at below 1 bottom plate of road frame bridge Bulk density, intensity, rigidity and the stability in order to increase by 1 lower section stratum of road frame bridge, prevent in jack-in process stratum by It destroys, and subway tunnel structure is inhibited to float；Increasing simultaneously is influenced the foundation bearing in planar range by 1 jacking of road frame bridge Power, the adverse effect that elevation unevenly changes caused by reducing because of 1 jacking of road frame bridge, prevents 1 jacking of road frame bridge just Differential settlement occurs behind position；In the present embodiment, the planar range of the grouting and reinforcing layer 6 is 1 jacking of road frame bridge The outer 2m of anterior-posterior plane coverage, with a thickness of 2m below 1 bottom plate of road frame bridge, injection slurry uses cement-sodium silicate mixing slurry Liquid, grouting parameter are determined according to test；
6) add the track strengthening system 7 of beam in length and breadth using 3-5-3 button rail on the region influenced on existing railway 11 by jacking It is reinforced, ensures the overall stability of existing railway 11 together with three support systems 4；
7) underground railway track 12 influenced by jacking is protected using rail distance rod 8, to guarantee 12 structure of underground railway track Overall stability；
8) more jack are set between the rear end face of road frame bridge 1 and jacking back 2, then using along jacking side To 9 when excavating subgrade strengthening area 5 and Demolition Construction coverage three support systems 4 of inner part jacking road frame bridge 1 1 jacking of road frame bridge to predetermined position, each jacking and shoveling drilling depth are up to 1.0m by jacking；Off-load is excavated to use The mode of small range iterative method impacts the transportation safety of existing railway 11 with preventing from excavating off-load on a large scale；
9) after 1 jacking of road frame bridge is in place, with will the more anchor poles 10 in blossom type arrangement from logical on steel ingot block 3 It is set vertically downward in corresponding hole on 1 bottom plate of core hole and road frame bridge, and carries out deep hole around anchor pole 10 Thus road frame bridge 1, steel ingot block 3 are formed stable whole knot by grouting operation together with stratum build-in below Structure to inhibit subway tunnel structure to float, while reducing because of 11 knot of existing railway caused by 1 differential settlement of road frame bridge The uneven variation of structure；After injection slurry solidifies and reaches design strength, one piece of band is placed on the corresponding steel ingot block 3 of anchor pole 10 Then hole steel plate is tightened anchor pole 10 with steel plate using nut, the upper end that finally will exceed 3 surface 80mm of steel ingot block is ground using angle Machine-cut is disconnected；In the present embodiment, the size Ф 42mm of the anchor pole 10, spacing 1500mm, lower end is apart from subway tunnel knot 2m above structure；Spacing when deep hole grouting operates between injected hole is 100-150mm, and injection slurry uses cement slurry；The ruler of steel plate Very little is 200mm × 200mm × 20mm；The specification of nut is Ф 42mm；
10) track strengthening system 7 is removed, ballast is backfilled, restores the structure of existing railway 11；In work progress and construct At in rear a period of time, the associated technical parameters of existing railway 11 are monitored, discovery deviation takes trimming measure in time, passes through A rainy season is spent, and every technical parameter is stablized, no significant change, monitoring can stop；
11) rail distance rod 8 is removed, the structure of underground railway track 12 is restored；In work progress and construct a period of time after the completion It is interior, the associated technical parameters of structure of the subway 12 are monitored, discovery deviation takes trimming measure in time, 1 year after construction Interior, relatively stable to every technical parameter, no significant change, monitoring can stop.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710946666.XA CN107675628B (en) | 2017-10-12 | 2017-10-12 | It is worn on urban road frame bridge and wears railway in operation jacking construction method under operated subway |
Applications Claiming Priority (1)
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| CN201710946666.XA CN107675628B (en) | 2017-10-12 | 2017-10-12 | It is worn on urban road frame bridge and wears railway in operation jacking construction method under operated subway |
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| CN107675628A CN107675628A (en) | 2018-02-09 |
| CN107675628B true CN107675628B (en) | 2018-12-28 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108487072B (en) * | 2018-04-10 | 2019-07-19 | 中铁四局集团第二工程有限公司 | Across Business Line railway cast-in-place frame bridge rapid constructing method in one kind |
| CN109356195A (en) * | 2018-11-26 | 2019-02-19 | 中铁四局集团第工程有限公司 | A kind of open cut box culvert advancing method and system across operated subway section |
| CN109723443A (en) * | 2018-12-30 | 2019-05-07 | 中铁十四局集团有限公司 | Method for tunnel construction |
| CN110241744A (en) * | 2019-06-18 | 2019-09-17 | 中国十七冶集团有限公司 | The construction method of jacking frame box culvert is worn under a kind of railway |
| CN110438855B (en) * | 2019-07-19 | 2020-12-04 | 中国十七冶集团有限公司 | Construction method for backfilling underneath-crossing railway bridge and culvert road bed |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02210108A (en) * | 1989-02-09 | 1990-08-21 | P S Concrete Co Ltd | Extruding upright elevated construction |
| CN102359069A (en) * | 2011-07-05 | 2012-02-22 | 中铁十局集团有限公司 | Existing line reinforcing method in under-crossing railway frame bridge small-included angle large-height inclined jacking construction |
| JP5915074B2 (en) * | 2011-10-19 | 2016-05-11 | 株式会社大林組 | How to form an underground space under a ground transportation |
| CN102808381B (en) * | 2012-08-21 | 2014-09-03 | 中铁十局集团有限公司 | High-water-level silty-soil underneath-pass multi-track railway frame bridge jacking and butting construction method |
| CN104652279B (en) * | 2013-11-25 | 2016-08-17 | 北京城建设计发展集团股份有限公司 | Existing structure of the subway box culvert jacking construction method is worn on a kind of newly-built frame bridge |
| CN103643640B (en) * | 2013-12-19 | 2015-06-17 | 中铁六局集团天津铁路建设有限公司 | Jacking-first and line-reinforcement-second jacking construction method for frame bridge |
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