CN109024606A - Sandy land band catenary mast foundation ditch construction method - Google Patents
Sandy land band catenary mast foundation ditch construction method Download PDFInfo
- Publication number
- CN109024606A CN109024606A CN201810687691.5A CN201810687691A CN109024606A CN 109024606 A CN109024606 A CN 109024606A CN 201810687691 A CN201810687691 A CN 201810687691A CN 109024606 A CN109024606 A CN 109024606A
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- Prior art keywords
- foundation pit
- location
- excavation
- landslide
- whole
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- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses Sandy land band catenary mast foundation ditch construction methods, comprising the following steps: step S1: preparation of construction；Step S2: installation slag trap；Step S3: landslide location excavation；Common landslide location is the location that soil property cheats depth >=3m, and moderate landslide location is that 1.6m≤soil property cheats depth≤3m, and the serious location that caves in starts distance≤1m at landslide for ground distance；Step S3 is specifically included: step S31: preparation before excavating；Step S32: common landslide location excavation of foundation pit；Step S33: to the excavation of foundation pit in moderate landslide location；Step S34: to the excavation of foundation pit step S4: concreting in serious landslide location；Construction finishes.Can safe and efficient guarantee construction, reduce labor intensity, improve construction safety；The Sandy land band pillar stable relation that the present invention constructs is good, the exceeded phenomenon of side limit does not occur；The present invention reduces the various expenses of spoil disposal machine filler acquisition, while improving working efficiency, reduces construction cost.
Description
Technical field
The present invention relates to catenary mast foundation pit construction technical fields, are Sandy land band catenary masts specifically
Foundation ditch construction method.
Background technique
Sandy soil stops dry loose, and binding force is poor, to the harm of contact net mainly with 3 aspects:
Roadbed is influenced the case where excavating difficulty, sideslip is easy to appear in work progress and is collapsed in excavation of foundation pit node
Stablize；
After pillar installation, foundation pit backfill is difficult, influences the stabilization of pillar；
Under operation condition, wind-force is excessive to cause the unstable change for causing contact net technical parameter of pillar, influences by electricity
The normal operation of bow also will cause pantograph and catenary fault under serious conditions.
Summary of the invention
The purpose of the present invention is to provide Sandy land band catenary mast foundation ditch construction methods, can be safe and efficient
Guarantee construction, effectively alleviates labor intensity, greatly improve construction safety.
The present invention is achieved through the following technical solutions:
Sandy land band catenary mast foundation ditch construction method, specifically includes the following steps:
Step S1: preparation of construction；
Step S2: installation slag trap；
Step S3: landslide location excavation；The common landslide location is the location that soil property cheats depth >=3m, moderate
Landslide location is that 1.6m≤soil property cheats depth≤3m., and the serious location that caves in is that ground distance starts distance≤1m at landslide；It is described
Step S3 is specifically included:
Step S31: preparation before excavating；
Step S32: common landslide location excavation of foundation pit；
Step S33: to the excavation of foundation pit in moderate landslide location；
Step S34: to the excavation of foundation pit in serious landslide location；
Step S4: concreting；Construction finishes.
Further, in order to preferably realize the present invention, the step S32 specifically includes the following steps:
Step S321: being excavated to subsurface 3m or less and start to cave in, and is protected and is excavated using steel form, until excavation of foundation pit is complete
At；
Step S322: upright bar, it is whole just, backfill, construction complete；
Step S323: record of concealed work is filled in.
Further, in order to preferably realize the present invention, step S322 is specifically referred to after upright bar is whole just, takes out punching block,
Original soil backfill and compaction in layers.
Further, in order to preferably realize the present invention, the step S32 specifically includes the following steps:
Step S331: being excavated to subsurface 1.6m,
Step S332: subsurface 1.7m is excavated using steel form protection, until excavation of foundation pit is completed；
Step S332: upright bar, it is whole just, backfill；
Step S333: record of concealed work is filled in.
Further, in order to preferably realize the present invention, the step S34 specifically includes the following steps:
Step S341: guard ring is prefabricated and haul；
Step S342: confirmation hole position place cleaning；
Step S343: anti-ballast aggregate baffle is disposed；
Step S344: installation guard ring excavates；
Step S345: it examines；After the completion of specifically referring to excavation of foundation pit, foundation pit type, foundation pit center line, Foundation Pit are examined deeply
It tests；Prepare upright bar after qualification；
Step S346: upright bar, it is whole just；
Step S347: casting concrete；
Step S348: record of concealed work is filled in.
Further, in order to preferably realize the present invention, the step S332 specifically includes the following steps:
Step A1: whole just its frame is mounted on pillar by whole bar personnel；
Step A2: by whole positive device lead screw one end rail card and the rail of pillar two sides, other end and frame connect
It connects；
Step A3: shaking whole positive device handle, upright and swing to limit with the Bai'an China adjustment pillar route of its lead screw length；
Chock: when needing mobile pillar root, being placed on the inside or/outside of support root by step A4, then with it is whole just
Device handle
Adjusting screw length keeps pillar root mobile, supporting post limit is made to meet the requirements；
Step A5: when needing to adjust pillar facet, bar roller insertion gastropore is manually pushed away into waddy using lever principle, is made
Branch
Column side is perpendicular to central lines of track；
Step A6: after mast gauge, gradient reach standard, stopping is whole just, and whole positive device handle is unloaded.
Further, in order to preferably realize the present invention, the step S4 specifically includes the following steps:
Step S41: it by sand, stone, cement, sleeps and is stirred evenly by match ratio, the ratio of mud；
Step S42: by the concrete being stirred pour into and foundation pit in, be added slabstone make firm by ramming；
Step S43: repeating step S42 operation, until construction extremely hole bottom 1.0m or more；
Step S44: punching block, original soil backfill, compaction in layers are taken out.
Compared with prior art, the present invention have the following advantages that and the utility model has the advantages that
The present invention can safe and efficient guarantee construction, effectively alleviate labor intensity, greatly improve construction peace
Entirely.
(1) present invention can safe and efficient guarantee construction, effectively alleviate labor intensity, greatly improve construction
Safety；
(2) the Sandy land band pillar stable relation that the present invention constructs is good, the exceeded phenomenon of side limit does not occur；
(3) it The present invention reduces the various expenses of spoil disposal machine filler acquisition, improves work efficiency, reduces simultaneously
Construction cost；
(4) present invention is using limitation excavation, the construction organization step of quick closure, and excavation of foundation pit area is small, exposure duration
It is short, the upright bar of the same day on the same day, excavation of foundation pit only also, be conducive to subgrade stability, convenient for construction and transportation safety.
Specific embodiment
The present invention is described in further detail below with reference to embodiment, embodiments of the present invention are not limited thereto.
Embodiment 1:
The present invention is achieved through the following technical solutions,
Sandy land band catenary mast foundation ditch construction method, specifically includes the following steps:
Step S1: preparation of construction；
Step S2: installation slag trap；
Step S3: landslide location excavation；The common landslide location is the location that soil property cheats depth >=3m, moderate
Landslide location is that 1.6m≤soil property cheats depth≤3m., and the serious location that caves in is that ground distance starts distance≤1m at landslide.
The step S3 is specifically included:
Step S31: preparation before excavating；
Step S32: common landslide location excavation of foundation pit；
Step S33: to the excavation of foundation pit in moderate landslide location；
Step S34: to the excavation of foundation pit in serious landslide location；
Step S4: concreting；Construction finishes.
It should be noted that by above-mentioned improvement, the present invention can safe and efficient guarantee construction, effectively alleviate
Labor intensity greatly improves construction safety；The Sandy land band pillar stable relation that the present invention constructs is good, side does not occur
The exceeded phenomenon of face limit；The various expenses of spoil disposal machine filler acquisition, improve work efficiency simultaneously, reduce and be constructed into
This.
The other parts of the present embodiment are same as the previously described embodiments, and so it will not be repeated.
Embodiment 2:
The present embodiment advanced optimizes on the basis of the above embodiments, Sandy land band catenary mast foundation pit construction
Method,
Specifically includes the following steps:
Step S1: preparation of construction；
Step S2: installation slag trap；It specifically refers to: two timbers is installed on the outside of anti-guard block both ends.The long 500mm of stake, outside
Reveal 200mm；Lean on the plank of one piece of thickness 30mm of line side traverse as slag trap, slag trap long 1000mm, wide 300mm in timber.
Step S3: landslide location excavation, the landslide location include common landslide location, moderate landslide location
And the location that seriously caves in；The common landslide location is the location that soil property cheats depth >=3m, and moderate caves in location for 1.6m≤soil
Matter cheats depth≤3m., and the serious location that caves in is that ground distance starts distance≤1m at landslide；
The step S3 specifically includes the following steps:
Step S31: preparation before excavating；It specifically refers to: confirmation foundation pit type, foundation pit lengthwise position, foundation pit side limit
Boundary, place cleaning；Confirm the installation site of slag trap and the excavation size of protective baffle plate；By personnel, equipment, material according to wanting
Seek tissue in place.
Step S32: common landslide location excavation of foundation pit；The step S32 specifically includes the following steps:
Step S321: being excavated to subsurface 3m or less and start to cave in, and is protected and is excavated using steel form, until excavation of foundation pit is complete
At；
Step S322: upright bar, it is whole just, backfill, construction complete；It specifically refers to after upright bar is whole just, takes out punching block, original soil returns
Fill out simultaneously compaction in layers.
Step S323: record of concealed work is filled in.·
Step S33: to the excavation of foundation pit in moderate landslide location；Step S331: being excavated to subsurface 1.6m,
Step S332: subsurface 1.7m is excavated using steel form protection, until excavation of foundation pit is completed；
Step S332: upright bar, it is whole just, backfill；, the step S332 specifically includes the following steps:
Step A1: whole just its frame is mounted on pillar by whole bar personnel；
Step A2: by whole positive device lead screw one end rail card and the rail of pillar two sides, other end and frame connect
It connects；
Step A3: shaking whole positive device handle, upright and swing to limit with the Bai'an China adjustment pillar route of its lead screw length；
Chock: when needing mobile pillar root, being placed on the inside or/outside of support root by step A4, then with it is whole just
Device handle
Adjusting screw length keeps pillar root mobile, supporting post limit is made to meet the requirements；
Step A5: when needing to adjust pillar facet, bar roller insertion gastropore is manually pushed away into waddy using lever principle, is made
Pillar side is perpendicular to central lines of track；It is placed when carrying out step A2- step A4, while by T-square, horizontal ruler, slope ruler
Designated position is observed in adjustment.
Step A6: after mast gauge, gradient reach standard, stopping is whole just, and whole positive device handle is unloaded.
Step S333: record of concealed work is filled in.
Step S34: to the excavation of foundation pit in serious landslide location；The step S34 specifically includes the following steps:
Step S341: guard ring is prefabricated and haul；
Step S342: confirmation hole position place cleaning；
Step S343: anti-ballast aggregate baffle is disposed；
Step S344: installation guard ring excavates；
Step S345: it examines；After the completion of specifically referring to excavation of foundation pit, foundation pit type, foundation pit center line, Foundation Pit are examined deeply
It tests；Prepare upright bar after qualification；
The foundation pit center is determined using equation (1):
X=Cx+1/2B (1)；
Wherein: X is foundation pit center, and Cx is pillar design side limit, and B is that posts bottom is wide.
Step S346: upright bar, it is whole just；
Step S347: casting concrete；
Step S348: record of concealed work is filled in.
Step S4: concreting；Construction finishes；The step S4 specifically includes the following steps:
Step S41: it by sand, stone, cement, sleeps and is stirred evenly by match ratio, the ratio of mud；
Step S42: by the concrete being stirred pour into and foundation pit in, be added slabstone make firm by ramming；
Step S43: repeating step S42 operation, until construction extremely hole bottom 1.0m or more；
Step S44: punching block, original soil backfill, compaction in layers are taken out.
It should be noted that, when determining the size of foundation pit mouth, the size of foundation pit mouth is posts bottom by above-mentioned improvement
Size；It is effective to guarantee that construction personnel is easy to operate；If there is the foundation pit of bottom plate, it is also contemplated that bottom plate.
The sizing calibration of foundation pit center and foundation pit mouth is on the working face cleaned out；It should ensure that foundation pit center line when excavation
Perpendicular to central lines of track；It should ensure that the upright and vertical of guard ring when excavation；It buries in the cabinet face that direct depth should meet pillar
If depth, bottom of foundation ditch should clear up smooth.
Whole positive standard: the buried depth of rail level should meet design requirement, and construction deviation is 0~+100mm；It buries the reality of part
Border buried depth is not less than embedded depth of foundation；
Oblique standard after pillar stress；Should be upright along line direction, tolerance is not more than the 0.5% of strut height,
But oblique 0~100mm should be rolled to bracing wire by closing end, and the straight line and district outer leg for the line direction that weighs answer center uprightly to outer
Marginal lappet is straight, the pillar of the inner side of curve, side-by-side mounting pillar, disconnecting switch is installed pillar, be located on straight line and with adjacent hair
The ipsilateral transition mast of bamboo should all be upright, and tolerance is not more than the 0.5% of strut height, but must not the inclination of row Impact direction.
It should be noted that before excavation, it is necessary to the case where finding out underground concealed facility；When excavating, it is necessary to protect
Barrier subgrade stability must not make it destroy or weaken, and when excavating compared with deep basal pit, must have people's air defense shield on foundation pit, cheating side not
Weight or tool must be placed；It must implement immediately subsequent handling after excavation and be backfilling and compacted；To ensure construction safety, strive at that time
It excavates, same day upright bar, to the same day vertical not upper boom, has the foundation pit for jeopardizing traffic safety that should backfill, prevent landslide from influencing driving.
The other parts of the present embodiment are same as the previously described embodiments, and so it will not be repeated.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is all according to
According to technical spirit any simple modification to the above embodiments of the invention, equivalent variations, protection of the invention is each fallen within
Within the scope of.
Claims (7)
1. Sandy land band catenary mast foundation ditch construction method, it is characterised in that: specifically includes the following steps:
Step S1: preparation of construction；
Step S2: installation slag trap；
Step S3: landslide location excavation；The common landslide location is the location that soil property cheats depth >=3m, moderate landslide
Location is that 1.6m≤soil property cheats depth≤3m, and the serious location that caves in is that ground distance starts distance≤1m at landslide；
The step S3 is specifically included:
Step S31: preparation before excavating；
Step S32: common landslide location excavation of foundation pit；
Step S33: to the excavation of foundation pit in moderate landslide location；
Step S34: to the excavation of foundation pit in serious landslide location；
Step S4: concreting；Construction finishes.
2. Sandy land band catenary mast foundation ditch construction method according to claim 1, it is characterised in that: the step
S32 specifically includes the following steps:
Step S321: being excavated to subsurface 3m or less and start to cave in, and is protected and is excavated using steel form, until excavation of foundation pit is completed；
Step S322: upright bar, it is whole just, backfill, construction complete；
Step S323: record of concealed work is filled in.
3. Sandy land band catenary mast foundation ditch construction method according to claim 2, it is characterised in that: step S322
It specifically refers to after upright bar is whole just, takes out punching block, original soil backfill and compaction in layers.
4. Sandy land band catenary mast foundation ditch construction method according to claim 2, it is characterised in that: the step
S33 specifically includes the following steps:
Step S331: being excavated to subsurface 1.6m,
Step S332: subsurface 1.7m is excavated using steel form protection, until excavation of foundation pit is completed；
Step S332: upright bar, it is whole just, backfill；
Step S333: record of concealed work is filled in.
5. Sandy land band catenary mast foundation ditch construction method according to claim 2, it is characterised in that: the step
S34 specifically includes the following steps:
Step S341: guard ring is prefabricated and haul；
Step S342: confirmation hole position place cleaning；
Step S343: anti-ballast aggregate baffle is disposed；
Step S344: installation guard ring excavates；
Step S345: it examines；After the completion of specifically referring to excavation of foundation pit, foundation pit type, foundation pit center line, Foundation Pit are examined deeply；
Prepare upright bar after qualification；
Step S346: upright bar, it is whole just；
Step S347: casting concrete；
Step S348: record of concealed work is filled in.
6. Sandy land band catenary mast foundation ditch construction method according to claim 4, it is characterised in that: the step
S332 specifically includes the following steps:
Step A1: whole just its frame is mounted on pillar by whole bar personnel；
Step A2: by whole positive device lead screw one end rail card and the rail of pillar two sides, other end is connect with frame；
Step A3: shaking whole positive device handle, upright and swing to limit with the Bai'an China adjustment pillar route of its lead screw length；
Chock: when needing mobile pillar root, being placed on the inside or/outside of support root by step A4, then with whole positive device hand
Handle adjusting screw length keeps pillar root mobile, supporting post limit is made to meet the requirements；
Step A5: when needing to adjust pillar facet, bar roller insertion gastropore is manually pushed away into waddy using lever principle, makes pillar
Side is perpendicular to central lines of track；
Step A6: after mast gauge, gradient reach standard, stopping is whole just, and whole positive device handle is unloaded.
7. Sandy land band catenary mast foundation ditch construction method according to claim 1-6, it is characterised in that:
The step S4 specifically includes the following steps:
Step S41: it by sand, stone, cement, sleeps and is stirred evenly by match ratio, the ratio of mud；
Step S42: by the concrete being stirred pour into and foundation pit in, be added slabstone make firm by ramming；
Step S43: repeating step S42 operation, until construction extremely hole bottom 1.0m or more；
Step S44: punching block, original soil backfill, compaction in layers are taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810687691.5A CN109024606A (en) | 2018-06-28 | 2018-06-28 | Sandy land band catenary mast foundation ditch construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810687691.5A CN109024606A (en) | 2018-06-28 | 2018-06-28 | Sandy land band catenary mast foundation ditch construction method |
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| Publication Number | Publication Date |
|---|---|
| CN109024606A true CN109024606A (en) | 2018-12-18 |
Family
ID=65520761
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|---|---|---|---|
| CN201810687691.5A Pending CN109024606A (en) | 2018-06-28 | 2018-06-28 | Sandy land band catenary mast foundation ditch construction method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11200369A (en) * | 1998-01-12 | 1999-07-27 | Azuma Kogyo Kk | Mortar caisson type pile construction method |
| CN201125389Y (en) * | 2007-11-23 | 2008-10-01 | 中铁十二局集团有限公司 | Combined template for high filling shifting sand segment contact net pit excavation |
| CN106088133A (en) * | 2016-06-15 | 2016-11-09 | 中国电力科学研究院 | Transmission line of electricity composite foundation for desert area |
| JP2017186766A (en) * | 2016-04-04 | 2017-10-12 | Ｊｆｅ建材株式会社 | Caisson type pile and earth retaining material used with the same |
-
2018
- 2018-06-28 CN CN201810687691.5A patent/CN109024606A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11200369A (en) * | 1998-01-12 | 1999-07-27 | Azuma Kogyo Kk | Mortar caisson type pile construction method |
| CN201125389Y (en) * | 2007-11-23 | 2008-10-01 | 中铁十二局集团有限公司 | Combined template for high filling shifting sand segment contact net pit excavation |
| JP2017186766A (en) * | 2016-04-04 | 2017-10-12 | Ｊｆｅ建材株式会社 | Caisson type pile and earth retaining material used with the same |
| CN106088133A (en) * | 2016-06-15 | 2016-11-09 | 中国电力科学研究院 | Transmission line of electricity composite foundation for desert area |
Non-Patent Citations (1)
| Title |
|---|
| 中铁电气化局集团有限公司: "《接触网工程（普速）施工作业操作手册》", 31 December 2014, 中国铁道出版社 * |
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