CN106522037B - Side broad way based structures based on existing railway roadbed and its construction method - Google Patents

Side broad way based structures based on existing railway roadbed and its construction method Download PDF

Info

Publication number
CN106522037B
CN106522037B CN201611220533.6A CN201611220533A CN106522037B CN 106522037 B CN106522037 B CN 106522037B CN 201611220533 A CN201611220533 A CN 201611220533A CN 106522037 B CN106522037 B CN 106522037B
Authority
CN
China
Prior art keywords
railway roadbed
existing railway
soil layer
structures
barricade
Prior art date
Application number
CN201611220533.6A
Other languages
Chinese (zh)
Other versions
CN106522037A (en
Inventor
孙红林
顾湘生
赵新益
陈尚勇
杭红星
吴成杰
邓天天
严栋
安月梅
廖超
Original Assignee
中铁第四勘察设计院集团有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 中铁第四勘察设计院集团有限公司 filed Critical 中铁第四勘察设计院集团有限公司
Priority to CN201611220533.6A priority Critical patent/CN106522037B/en
Publication of CN106522037A publication Critical patent/CN106522037A/en
Application granted granted Critical
Publication of CN106522037B publication Critical patent/CN106522037B/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2/00General structure of permanent way
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2204/00Characteristics of the track and its foundations

Abstract

The invention discloses a kind of side broad way based structures based on existing railway roadbed, including the step in the side slope of existing railway roadbed, the loaded filter being arranged on the step and the barricade being cast on the outside of the wide railroad embankment of side is arranged, light soil is filled between the loaded filter and the barricade, anticracking bar-mat reinforcement is equipped in the light soil at preset height, bedding filler has been filled on the light soil.The present invention also provides a kind of side broad way based methods of existing railway roadbed.The wide structure of roadbed side based on existing railway roadbed of the present invention can greatly reduce the load that roadbed is filled out by side, improve the stability that roadbed is filled out by side, reduce the additional settlement of railway operation roadbed using the small characteristic of light soil density;Barricade on the outside of light soil can reduce light soil dosage, save construction land, and can be used as the template that light soil fills.

Description

Side broad way based structures based on existing railway roadbed and its construction method

Technical field

The present invention relates to railway construction technical fields, in particular to a kind of side broad way based structures based on existing railway roadbed And its construction method.

Background technology

Currently, China has been basically formed with the High-speed Railway Network that " four vertical four is horizontal " is skeleton.Newly-built high-speed iron from now on Road, how inter-city passenger rail is connected with existing high ferro network has become a huge technical barrier.

In the engineering that newly built railway is introduced into existing high-speed railway, newly built railway roadbed how with existing high-speed railway subgrade The wide connection of engineering side is a technical barrier.Since high-speed railway deformation controlling standards are very high, using conventional basement process and Both technology was filled out by wired side, unavoidably caused both wired additional settlements, and when raising is higher or ground is weak, additional settlement is especially Seriously, the safe operation of existing high-speed railway subgrade is influenced when serious.

Since high-speed railway grade is high, Rail inspection control standard is extremely stringent, the small sedimentation of roadbed and level Displacement will all seriously affect the safety of operating line.Currently, the operating line caused by the large-area load of circuit side settles It happens occasionally with horizontal displacement, seriously affects the safety of high-speed railway operation, it has to prodigious cost be spent to be renovated.

Invention content

Prevent rail track sedimentation and horizontal displacement based on existing railway roadbed the object of the present invention is to provide a kind of Side broad way based structures.

To achieve the above object, the side broad way based structures based on existing railway roadbed designed by the present invention include that setting exists It step in the side slope of existing railway roadbed, the loaded filter being arranged on the step and is cast on the outside of the wide railroad embankment of side Barricade, lightweight soil layer is filled between the loaded filter and the barricade, is transversely equipped with anticracking in the lightweight soil layer The bedding filler that connects with the side slope of existing railway roadbed is filled in bar-mat reinforcement, the lightweight soil layer top.

Preferably, the lightweight soil layer uses 7~10kN/m of unit weight3, 0.8~1.5MPa of compression strength lightweight Foam concrete.

Preferably, in the lightweight soil layer 1 to 3 layer of galvanized metal net is equipped with along short transverse interval.

Preferably, the lower section of the lightweight soil layer is up equipped with blotter, folder antiseepage soil from ground successively The medium-sand seam and galvanized metal net of work film.

Preferably, folder anti-seepage geomembrane is equipped between the top of the lightweight soil layer and the bedding filler Medium-sand seam.

Preferably, the barricade is reinforced concrete cast-in-situ Cantilever Retaining Wall or counterfort wall, the barricade Bottom plate embedment ground line under, offer drain hole on the wall of the barricade, the drain hole in the medium-sand seam The position of anti-seepage geomembrane corresponds to.

Preferably, the bar diameter of the anticracking bar-mat reinforcement is 6~10mm, and bar spacing is 100~200mm.

The present invention also aims to, provide it is a kind of prevent rail track sedimentation and horizontal displacement based on existing railway road The side broad way based structures construction method of base.

To achieve the above object, the side broad way based structures construction method based on existing railway roadbed designed by the present invention, Include the following steps:(a) side slope protection of existing railway roadbed is removed;(b) it is helping to pour barricade on the outside of wide railroad embankment; (c) step is dug in the side slope of existing railway roadbed, loaded filter is laid on the step after often digging one layer of step;(d) exist It is covered on the ground between the step of the loaded filter and the barricade and is laid with blotter;(e) in the blotter Top be laid with folder anti-seepage geomembrane medium-sand seam;(f) zinc-plated gold is laid at the top of the anti-seepage geomembrane of the medium-sand seam Belong to net;(g) in the online placement layer by layer lightweight soil layer of the galvanized metal;(h) the transversely laying in the lightweight soil layer is anti- Split bar-mat reinforcement;(i) the lightweight soil layer middle berth above the anticracking bar-mat reinforcement sets 1 to 3 layer of anticracking galvanized metal net;(j) It is laid with the medium-sand seam of folder anti-seepage geomembrane in the top of the lightweight soil layer;And (k) in the top of the medium-sand seam point Layer fills bedding filler and connects to forming subgrade bed with the side slope of existing existing railway roadbed.

Preferably, in the step (g), the step is dug when lightweight soil layer described in placement in layers, it is described The lift height of lightweight soil layer is 0.5~2m.

Preferably, the lightweight soil layer is vertically arranged with expansion joint, the light soil along the circuit of railway bed Layer uses 7~10kN/m of unit weight3, 0.8~1.5MPa of compression strength light foam concrete.

The beneficial effects of the invention are as follows:The side broad way based structures and its construction method based on existing railway roadbed of the present invention Using the small characteristic of light soil density, side can be greatly reduced and fill out the load of roadbed, improve the stability that roadbed is filled out by side, reduce railway Operation roadbed additional settlement;Barricade on the outside of light soil can reduce light soil dosage, save construction land, and can be used as The template that light soil fills.

Description of the drawings

Fig. 1 is the work progress signal of the side broad way based structures based on existing railway roadbed of the preferred embodiment of the present invention Figure.

Fig. 2 is the work progress signal of the side broad way based structures based on existing railway roadbed of the preferred embodiment of the present invention Figure.

Fig. 3 is the work progress signal of the side broad way based structures based on existing railway roadbed of the preferred embodiment of the present invention Figure.

Fig. 4 is the knot after the completion of the side broad way based structures construction based on existing railway roadbed of the preferred embodiment of the present invention Structure schematic diagram.

Fig. 5 is after the completion of the side broad way based structures based on existing railway roadbed of another preferred embodiment of the present invention are constructed Structural schematic diagram.

Each part numbers are as follows in figure:Step 1, loaded filter 2, barricade 3 (wherein, bottom plate 3.1, drain hole 3.2), rubble pad Layer 4, medium-sand seam 5, galvanized metal net 6, lightweight soil layer 7, bar-mat reinforcement 8, bedding filler 9.

Specific implementation mode

The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments.

By being carried out to existing railway bed the study found that causing existing high-speed railway road to reduce newly built railway roadbed The additional settlement problem of base, need to set about in terms of two:First, handling ground;Second is that reducing newly built railway Roadbed Soil lotus It carries.

The present invention the side broad way based structures based on existing railway roadbed by reduce newly built railway Roadbed Soil load, with The stability for keeping existing embankment reduces the additional settlement of existing high-speed railway subgrade.

Please refer to Fig.1 to Fig.4, the side broad way based structures of the invention based on existing railway roadbed include both sides step 1, Loaded filter 2 and barricade 3, and the blotter 4, medium-sand seam 5, galvanized metal net 6, light that is laid between step 1 and barricade 3 Matter soil layer 7, bar-mat reinforcement 8 and bedding filler 9.

Step 1 is arranged in the side slope of existing railway roadbed, is excavated in the side slope of existing railway roadbed and forms step 1. (building by laying bricks or stones) loaded filter 2 is laid on step 1, loaded filter 2 can guarantee the soil that do not taken away when infiltration water outflow in railway bed, from And can anti-fluid stopping soil generation.It helps to pour barricade 3 on the outside of wide railroad embankment, barricade 3 uses reinforced concrete cast-in-situ structure, Bottom plate 3.1 is embedded under ground line, and drain hole 3.2 is offered on wall.Light soil is filled out by layering side between step 1 and barricade 3 Layer 7.The bottom of lightweight soil layer 7 is up laid with blotter 4 from ground successively, presss from both sides the medium-sand seam 5 of anti-seepage geomembrane and zinc-plated Metal mesh 6.In lightweight soil layer 7 anticracking bar-mat reinforcement 8 is transversely laid at appropriate height.The inherent anticracking reinforcing bar of lightweight soil layer 7 The top of net 8 is laterally spaced to be equipped with 1~3 layer of galvanized metal net 6.7 top of lightweight soil layer is equipped with folder anti-seepage geomembrane Medium-sand seam 5.5 or more placement in layers subgrade bed filler 9 of medium-sand seam, the side slope phase of bedding filler 9 and existing railway roadbed It connects to form roadbed lathe.

Drain hole 3.2 is arranged in anti-seepage geomembrane (i.e. medium-sand seam 5) corresponding position in barricade 3.Anti-seepage geomembrane collection antiseepage With drainage in one, it is provided simultaneously with the function of isolation and reinforcement, drain hole 3.2 is drawn for the ponding of anti-seepage geomembrane.

It should be pointed out that in the embodiment shown in Fig. 1 to Fig. 4, barricade 3 is Cantilever Retaining Wall.In other preferred realities It applies in example, counterfort wall as shown in Figure 5 can also be used in barricade 3.

To meet other requirements while meeting the requirement for reducing newly built railway Roadbed Soil load, lightweight soil layer 7 is adopted With 7~10kN/m of unit weight3, 0.8~1.5MPa of compression strength light soil, the durability of lightweight soil layer 7 and major project service life It is identical, it is interior without harmful and combustible material, avoid environmental pollution and hidden fire-fighting danger.It is mixed that light foam can be used in lightweight soil layer 7 Solidifying soil, but it is not limited only to light-weight foamed concrete.

It please recombine refering to fig. 1 to Fig. 4, the side broad way based structures construction method of the invention based on existing railway roadbed Include the following steps:

(1) earth's surface humic substance, grade are removed, grinding compacting carries out basement process.

(2) side slope protection of existing railway roadbed is removed.

(3) it is helping to pour cantilever (counterfort) formula barricade 3 on the outside of wide railroad embankment, barricade 3 is in light soil anti-seepage geomembrane Drain hole 3.2 is arranged in corresponding position, and the ponding of anti-seepage geomembrane is drawn.

(4) side slope of existing railway roadbed digs step 1, after generally often digging one layer of step, is laid with (building by laying bricks or stones) loaded filter 2.

(5) it is laid with blotter 4 on the ground being covered between the step 1 of loaded filter 2 and barricade 3.

(6) medium-sand seam 5 of folder anti-seepage geomembrane is laid at 4 top of blotter.

(7) galvanized metal net 6 is laid at the top of the anti-seepage geomembrane of medium-sand seam 5, to prevent light soil layer 7 from cracking.

(8) lightweight soil layer 7,0.5~2m of generic hierarchical thickness are poured in 6 higher slice of galvanized metal net.

(9) step 1 is dug when filling lightweight soil layer 7, top must not be once excavated to, to prevent Near Existing Railway Embankment slope by rain Water logging, which bubbles open, to be split.

(10) the laying anticracking bar-mat reinforcement 8 at the appropriate height of lightweight soil layer 7, with reinforcement structure intensity, anticracking bar-mat reinforcement 8 6~10mm of bar diameter, 100~200mm of spacing.

(11) one to three layer of anticracking galvanized metal net 6 is laid in the lightweight soil layer 7 above anticracking bar-mat reinforcement 8.

(12) it is laid with the medium-sand seam 5 of folder anti-seepage geomembrane in the top of lightweight soil layer 7, prevents rainwater from invading lightweight soil layer 7 inside.

(13) connect in the top placement in layers bedding filler 9 of medium-sand seam 5 and with the side slope of existing existing railway roadbed, Form subgrade bed.

It is laid with the medium-sand seam 5 of one to three layer of anticracking galvanized metal net 6 and folder anti-seepage geomembrane in 7 top surface of lightweight soil layer, Prevent the inside of rainwater intrusion light soil.

(12) 9 placement in layers subgrade bed of bedding filler is used at the top of the anti-seepage geomembrane of the medium-sand seam of top layer 5.

It expands with heat and contract with cold caused by avoid Changes in weather and may cause to generate excessive temperature stress in the structure, gently Matter soil layer 7 is along the longitudinally disposed expansion joint of circuit of railway bed.

The present invention's helps broad way based structures and method using the small characteristic of light soil density based on existing railway roadbed, can The load that roadbed is filled out by side is greatly reduced, the stability that roadbed is filled out by side is improved, reduces the additional settlement of railway operation roadbed.Light soil The retaining wall in outside can reduce light soil dosage, save construction land, and can be used as " template " that light soil fills.

Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims (9)

1. a kind of side broad way based structures based on existing railway roadbed, it is characterised in that:The side based on existing railway roadbed Broad way based structures include the loaded filter of the step (1) being arranged in the side slope of existing railway roadbed, setting on the step (1) (2) and it is cast in the barricade (3) helped on the outside of wide railroad embankment, filled with light between the loaded filter (2) and the barricade (3) Matter soil layer (7) is transversely equipped with anticracking bar-mat reinforcement (8) in the lightweight soil layer (7), is filled above the lightweight soil layer (7) There is the side slope with existing railway roadbed to connect bedding filler (9), the lower section of the lightweight soil layer (7) is up laid with successively from ground The medium-sand seam (5) and galvanized metal net (6) for having blotter (4), pressing from both sides anti-seepage geomembrane.
2. the side broad way based structures according to claim 1 based on existing railway roadbed, it is characterised in that:The light soil Layer (7) uses 7~10kN/m of unit weight3, 0.8~1.5MPa of compression strength light foam concrete.
3. the side broad way based structures according to claim 1 based on existing railway roadbed, it is characterised in that:The light soil In layer (7) 1 to 3 layer of galvanized metal net (6) is equipped with along short transverse interval.
4. the side broad way based structures according to claim 1 based on existing railway roadbed, it is characterised in that:The light soil The medium-sand seam (5) of folder anti-seepage geomembrane is equipped between the top and the bedding filler (9) of layer (7).
5. the side broad way based structures according to claim 4 based on existing railway roadbed, it is characterised in that:The barricade (3) it is reinforced concrete cast-in-situ Cantilever Retaining Wall or counterfort wall, under bottom plate (3.1) the embedment ground line of the barricade (3), Offer drain hole (3.2) on the wall of the barricade (3), the drain hole (3.2) with antiseepage in the medium-sand seam (5) The position of geomembrane corresponds to.
6. the side broad way based structures according to claim 1 based on existing railway roadbed, it is characterised in that:The anticracking steel The bar diameter of muscle net (8) is 6~10mm, and bar spacing is 100~200mm.
7. a kind of side broad way based structures construction method based on existing railway roadbed, includes the following steps:
(a) side slope protection of existing railway roadbed is removed;
(b) it is helping to pour barricade (3) on the outside of wide railroad embankment;
(c) step (1) is dug in the side slope of existing railway roadbed, is laid on the step (1) after often digging one layer of step (1) Loaded filter (2);
(d) it is laid with blotter on the ground being covered between the step (1) of the loaded filter (2) and the barricade (3) (4);
(e) medium-sand seam (5) of folder anti-seepage geomembrane is laid at the top of the blotter (4);
(f) galvanized metal net (6) is laid at the top of the anti-seepage geomembrane of the medium-sand seam (5);
(g) lightweight soil layer (7) is poured in galvanized metal net (6) higher slice;
(h) the transversely laying anticracking bar-mat reinforcement (8) in the lightweight soil layer (7);
(i) 1 to 3 layer of anticracking galvanized metal net (6) is laid in the lightweight soil layer (7) above the anticracking bar-mat reinforcement (8);
(j) medium-sand seam (5) of folder anti-seepage geomembrane is laid in the top of the lightweight soil layer (7);And
(k) the top placement in layers bedding filler (9) of the medium-sand seam (5) and with the side slope phase of existing existing railway roadbed It connects to form subgrade bed.
8. the side broad way based structures construction method according to claim 7 based on existing railway roadbed, it is characterised in that: In the step (g), the step (1), the layering of the lightweight soil layer (7) are dug when lightweight soil layer (7) described in placement in layers Thickness is 0.5~2m.
9. the side broad way based structures construction method according to claim 7 based on existing railway roadbed, it is characterised in that:Institute It states lightweight soil layer (7) and is vertically arranged with expansion joint along the circuit of railway bed, the lightweight soil layer (7) uses 7~10kN/ of unit weight m3, 0.8~1.5MPa of compression strength light foam concrete.
CN201611220533.6A 2016-12-26 2016-12-26 Side broad way based structures based on existing railway roadbed and its construction method CN106522037B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611220533.6A CN106522037B (en) 2016-12-26 2016-12-26 Side broad way based structures based on existing railway roadbed and its construction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611220533.6A CN106522037B (en) 2016-12-26 2016-12-26 Side broad way based structures based on existing railway roadbed and its construction method

Publications (2)

Publication Number Publication Date
CN106522037A CN106522037A (en) 2017-03-22
CN106522037B true CN106522037B (en) 2018-09-25

Family

ID=58337996

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611220533.6A CN106522037B (en) 2016-12-26 2016-12-26 Side broad way based structures based on existing railway roadbed and its construction method

Country Status (1)

Country Link
CN (1) CN106522037B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108560340B (en) * 2018-03-26 2020-05-19 中铁工程设计咨询集团有限公司 Method for transforming high-speed railway by utilizing existing embankment
CN109487802A (en) * 2018-10-26 2019-03-19 中铁二院成都勘察设计研究院有限责任公司 A kind of wide processing method of roadbed side
CN110158367A (en) * 2019-04-12 2019-08-23 同济大学 A kind of structure and deformation control method for helping the existing high-speed railway subgrade of width
CN109914448A (en) * 2019-04-16 2019-06-21 大连交通大学 A kind of composite supporting construction widened for rock matter embankment and construction method
CN110485218A (en) * 2019-09-11 2019-11-22 北京铁科特种工程技术有限公司 It is a kind of to help wide construction method for railway bed

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03279501A (en) * 1990-03-27 1991-12-10 Kurosawa Kensetsu Kk Widening of road
CN203960883U (en) * 2014-02-20 2014-11-26 中铁第四勘察设计院集团有限公司 One both wired high embankment is helped wide ruggedized construction
CN104532857A (en) * 2014-12-24 2015-04-22 中铁二院工程集团有限责任公司 Flexible expansion reduced ecological slope protection construction
CN104631221A (en) * 2015-02-17 2015-05-20 铁道第三勘察设计院集团有限公司 High-speed railway widening subgrade structure
CN104928996A (en) * 2015-06-24 2015-09-23 中铁第四勘察设计院集团有限公司 Light soil side wide roadbed structure for railway
CN105019326A (en) * 2015-06-29 2015-11-04 河南华泰建材开发有限公司 Roadbed structure applied to road widening and construction method
CN105862671A (en) * 2016-04-08 2016-08-17 北京群祥兴科技有限公司 Construction method based on ecological organic sponge
CN205711612U (en) * 2016-05-18 2016-11-23 山东省交通规划设计院 Widening of Freeway engineering freeboard section new-old pavement splicing construction
CN206346075U (en) * 2016-12-26 2017-07-21 中铁第四勘察设计院集团有限公司 Side broad way based structures based on existing railway roadbed

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8376661B2 (en) * 2010-05-21 2013-02-19 R&B Leasing, Llc System and method for increasing roadway width incorporating a reverse oriented retaining wall and soil nail supports

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03279501A (en) * 1990-03-27 1991-12-10 Kurosawa Kensetsu Kk Widening of road
CN203960883U (en) * 2014-02-20 2014-11-26 中铁第四勘察设计院集团有限公司 One both wired high embankment is helped wide ruggedized construction
CN104532857A (en) * 2014-12-24 2015-04-22 中铁二院工程集团有限责任公司 Flexible expansion reduced ecological slope protection construction
CN104631221A (en) * 2015-02-17 2015-05-20 铁道第三勘察设计院集团有限公司 High-speed railway widening subgrade structure
CN104928996A (en) * 2015-06-24 2015-09-23 中铁第四勘察设计院集团有限公司 Light soil side wide roadbed structure for railway
CN105019326A (en) * 2015-06-29 2015-11-04 河南华泰建材开发有限公司 Roadbed structure applied to road widening and construction method
CN105862671A (en) * 2016-04-08 2016-08-17 北京群祥兴科技有限公司 Construction method based on ecological organic sponge
CN205711612U (en) * 2016-05-18 2016-11-23 山东省交通规划设计院 Widening of Freeway engineering freeboard section new-old pavement splicing construction
CN206346075U (en) * 2016-12-26 2017-07-21 中铁第四勘察设计院集团有限公司 Side broad way based structures based on existing railway roadbed

Also Published As

Publication number Publication date
CN106522037A (en) 2017-03-22

Similar Documents

Publication Publication Date Title
Arulrajah et al. Ground improvement techniques for railway embankments
CN102518135B (en) Horizontal jet grouting soil anchor and castinplace pile Composite Foundation Pit supporting construction engineering method
CN101343852B (en) Method for filling highroad roadbed by waste steel slags
CN104278608B (en) The constructional method of a kind of highway embankment widened structure
CN103628378B (en) One is highway widening embankment structure and construction method near water
CN101368383B (en) Method for treating soft soil roadbed by artificial composite crust layer
CN103526770B (en) A kind of construction method of high antiseepage anti-floating pile raft structure
CN203383119U (en) Novel widening structure of highway embankment
CN101691724A (en) Liquefied soil foundation quake-proof road-bridge transition section structure of ballastless track of high-speed railway
CN102691300A (en) Construction method of foundation pit earthwork
CN102505695B (en) Construction method for deep foundation pit of three-dimensional garage
CN101280568A (en) Station pit construction method forming protection for neighboring operated subway interval tunnel
CN104131555B (en) A kind of outsourcing water penetration concrete reinforced pipe crushed stone grouting pile and construction method thereof
CN204401385U (en) A kind of road structure processing Deep Thick Soft Ground karst foundation
CN106192646B (en) Vcehicular tunnel car-driving shock-absorbing denoising structure and its construction method
CN104894937A (en) Construction method for mucky soft soil roadbase tubular pile
CN204401447U (en) A kind of structure preventing bumping at bridge-head
CN101654899A (en) Liquified soil foundation-bed shock-resistant strengthening structure of high-speed railway
CN103711056B (en) Steel tool-type temporary construction road and construction method thereof
CN104746390B (en) Foam lightweight concrete railroad bed structure
CN102296507B (en) Treatment method of subgrade cracks
CN104328782B (en) A kind of expansiveness perfusion support arrangement and the method administering railroad bed settlement deformation thereof
US9045865B2 (en) Polymer grouting method for uplifting ballastless track of high-speed rail
CN201530961U (en) Transition section structure of liquefying soil foundation anti-seismic road and bridge of high-speed railway ballastless track
CN105155558A (en) Combined retaining structure and construction method thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant