CN207419555U - A kind of high ferro bridge pier roadbed isolation error-correction structure for protecting periphery existing building - Google Patents
A kind of high ferro bridge pier roadbed isolation error-correction structure for protecting periphery existing building Download PDFInfo
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- CN207419555U CN207419555U CN201721090755.0U CN201721090755U CN207419555U CN 207419555 U CN207419555 U CN 207419555U CN 201721090755 U CN201721090755 U CN 201721090755U CN 207419555 U CN207419555 U CN 207419555U
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- roadbed
- bridge pier
- existing building
- jet grouting
- high ferro
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Abstract
The utility model discloses a kind of high ferro bridge pier roadbeds for protecting periphery existing building to isolate error-correction structure, including bridge pier roadbed, existing building and stress relief structure；High-pressure rotary jet grouting pile is provided between bridge pier roadbed and the existing building, being provided between the high-pressure rotary jet grouting pile and the existing building can the first barrier structure；The length that the high-pressure rotary jet grouting pile is longitudinally arranged along railway is not more than length of first barrier structure along railway longitudinal direction；The depth of the high-pressure rotary jet grouting pile is not more than the depth of first barrier structure.The utility model is simple in structure, easy to use, it efficiently avoids the damage of existing building ground caused by stress spread during Construction of High Pressure Jet Grouting Pile by setting a row that can prevent barrier structure of the stress transfer generated during jet grouting pile construction to the ground of existing building between bridge pier roadbed and existing building.
Description
Technical field
The utility model is related to high-speed railway subgrade defect treatment technology field, in particular in high ferro bridge abutment correcting process
In, a kind of high ferro bridge pier roadbed isolation error-correction structure for protecting periphery existing building.
Background technology
At present, China express railway capital construction forms four vertical four horizontal general layouts.Wherein, the visitors such as Beijing-Shanghai, Beijing-Hongkong, Hang Fu
Fortune special line passes through the widely distributed coastal area of weak soil.Based on non-fragment orbit service life is long, durability is good, maintenance load is small
The advantages that, China express railway largely uses non-fragment orbit.By substantial amounts of theoretical and case history research for many years, China's engineering
Technical staff is more deep to soft clay area ballastless track roadbed sedimentation understanding, and generally use composite foundation, pile pile+raft are hardened
Structure, pile slab structure etc. carry out foundation stabilization, and ground is made to meet strict demand of the ballastless track roadbed to settlement after construction.Due to nothing
Tiny fragments of stone, coal, etc. track bed transversely deforming research is less, and technical staff is still not deep enough to the understanding of roadbed transversely deforming.Due to unilateral heap
It carries, excavation of foundation pit or late maintaining repair the engineering activities such as asymmetric Construction and may cause soft clay area ballastless track roadbed horizontal
It transfinites to deformation, destroys the ride comfort of track structure, train will be caused to topple when serious.
It offsets to one side to solve this track bed, it is thus proposed that using high-pressure rotary jet grouting pile consolidate road one side
Roadbed, and pass through high-pressure rotary jet grouting pile squeezing action formed to roadbed one side and force track transverse shifting, complete correction process.
It is disclosed in the specification of Chinese utility model patent CN103821039A a kind of for soft clay area operation high speed railway fragments-free
The roadbed method for correcting error of track, this method deflection one side roadbed on slot, then slot open interior construct high-pressure rotary jet grouting pile, lead to
The thrust for crossing high-pressure rotary jet grouting pile promotes track bed to be moved to one side, realizes the correction of roadbed.High-pressure rotary jet grouting pile is to utilize drilling machine
Rotary jet grouting pipe and nozzle brill are placed in a bottom design altitude, advance prepared slurries are made into liquid stream by high-voltage generator
It after obtaining huge energy, is ejected from the nozzle high speed of slip casting tube edge, forms the liquid stream of one energy height concentration, directly
The soil body is destroyed, in course of injection, drilling rod is promoted in rotation, and slurries is made to be thoroughly mixed with the soil body, and formation is centainly in soil
The column induration of diameter, so that ground is reinforced.Construction Technique of High Pressure Revolving Spraying is ripe, especially suitable for soft soil roadbed
The processing of offset is settled, but since Construction of High Pressure Jet Grouting Pile is sprayed around centered on the axis in hole,
Very strong extruding impetus can be generated for the region on hole periphery, i.e. the stress of high-pressure rotary jet grouting pile can be spread.When using the party
When method rectifies a deviation to the non-fragment orbit of high-speed railway, if construction area is applied nearby there are existing building using high-pressure rotary jet grouting pile
Different degrees of destruction will be generated after the stress spread that work generates to the ground of existing building.And current rail is sent out at a high speed
Exhibition, most of Along Railways have substantial amounts of existing building, therefore, how in the case where protecting existing building to railway
Non-fragment orbit realizes that the problem of correction is badly in need of solving.
The content of the invention
The high-pressure rotary jet grouting pile that the purpose of this utility model seeks to solve the prior art mentioned in above-mentioned background technology exists
It is existing to provide a kind of protection periphery for the problem of be easy to causeing the destruction of periphery existing building in high ferro bridge abutment correcting work progress
The high ferro bridge pier roadbed isolation error-correction structure of building.
In order to solve the above technical problems, the utility model employs the high metal bridge of such a protection periphery existing building
Pier roadbed isolates error-correction structure, including bridge pier roadbed, is provided with compared with the identical one side in bridge pier roadbed lateral shift direction
Existing building is provided with stress relief structure compared with the opposite one side in bridge pier roadbed lateral shift direction；The bridge pier roadbed
High-pressure rotary jet grouting pile is provided between the existing building, being provided between the high-pressure rotary jet grouting pile and the existing building can the
One barrier structure；The high-pressure rotary jet grouting pile is longitudinal along railway no more than first barrier structure along the length that railway is longitudinally arranged
Length；The depth of the high-pressure rotary jet grouting pile is not more than the depth of first barrier structure.
In a kind of preferred embodiment of the utility model, first barrier structure is longitudinally arranged for a row along railway
Steel sheet pile.
In a kind of preferred embodiment of the utility model, the steel sheet pile is provided at both ends with along railway lateral arrangement
And the second barrier structure extended towards railway side.
In a kind of preferred embodiment of the utility model, second barrier structure is to be arranged at the steel sheet pile two
The side steel sheet pile of side.
In a kind of preferred embodiment of the utility model, the steel sheet pile and the side steel sheet pile form a U-shaped
Overall structure, and the opening of its U-shaped is towards railway.
In a kind of preferred embodiment of the utility model, the stress relief structure is along the longitudinally disposed change of railway
Shape slot, the interior filling of deformation slot can prevent the material that deformation slot collapses and slot deforms.
In a kind of preferred embodiment of the utility model, the width range of the deformation slot is 0.5m~2.0m, institute
The depth for stating deformation slot is not less than 2.0m.
In a kind of preferred embodiment of the utility model, set in the region between the deformation slot and bridge pier roadbed
Multiple stress relief holes being longitudinally arranged along railway, the bottom of each stress relief hole extend downwardly, and under bridge pier roadbed
Medium coarse sand or rubble fill up in each stress relief hole in the soft stratum area of side.
In a kind of preferred embodiment of the utility model, the spacing of two neighboring stress relief hole is equal and spacing model
It is 1.0m~2.0m to enclose；The aperture of each stress relief hole is equal and pore diameter range is 127mm~148mm.
The beneficial effects of the utility model are：The utility model is simple in structure, easy to use, by bridge pier roadbed and
Set a row that the stress transfer generated during jet grouting pile construction can be prevented to the ground of existing building between existing building
Barrier structure on base efficiently avoids existing building ground caused by stress spread during Construction of High Pressure Jet Grouting Pile
Damage；Improve the efficiency of bridge pier roadbed Deviation Correction Construction；Simultaneously the utility model by using steel sheet pile as barrier structure,
The diffusion of stress during high-pressure rotary jet grouting pile is applied can be effectively obstructed, while facilitate the installation and dismounting of barrier structure；And
In order to enable the stress generated during Construction of High Pressure Jet Grouting Pile is more concentrated and is transferred on bridge pier roadbed, prevent stress along railway
Longitudinal diffusion, makes the more concentration of stress transfer, and steel sheet pile has been designed to U-shaped structure by the utility model；In order to adapt to U
The stress slot and stress relief hole of stress relief structure have been made structure ruler by the steel sheet pile structure design of type structure, the utility model
Very little planning generates damage to reach the stress generated during it can eliminate Construction of High Pressure Jet Grouting Pile to the ground of existing building
Bad while, can be most effectively attained the high ferro bridge abutment correcting of high-speed railway；It may be noted that above-mentioned data are not that can lead to
Cross what the experiment of limited number of time can be drawn, but drawn according to those skilled in the art according to theoretical and actual combination
Empirical data, only on the premise of above-mentioned data are used, the high ferro bridge pier of the protection periphery existing building of the utility model
Roadbed isolation method for correcting error can most effectively be implemented.
Description of the drawings
Fig. 1 is a kind of high ferro bridge pier roadbed isolation correction knot of protection periphery existing building of the utility model embodiment
The cross-sectional structure schematic diagram of structure；
Fig. 2 is a kind of high ferro bridge pier roadbed isolation correction knot of protection periphery existing building of the utility model embodiment
The top view of structure；
In figure：1-bridge pier roadbed；2-existing building；3-deformation slot；4-stress relief hole；5-the first barrier knot
Structure；6-the second barrier structure；7-high-pressure rotary jet grouting pile.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
The utility model carries out horizontal correction by the way of high-pressure rotary jet grouting pile to bridge pier roadbed 1, for the ease of bridge pier road
The transverse shifting of base 1, the present embodiment are provided with stress relief structure (no in bridge pier roadbed 1 compared with the one side of its lateral shift
The deformation slot structure being limited in following embodiments, as long as can realize that the various structures of stress elimination function belong to this practicality newly
The protection domain of type).The stress relief structure of the present embodiment includes deformation slot 3, as shown in Fig. 1~2, deforms slot 3 along high-speed iron
The genesis analysis on road, the deformation that soil generates during for eliminating bridge pier 1 transverse shifting of roadbed.
The width range of slot 3 is deformed as 0.5m~2.0m, when practical application can carry out according to the offset of bridge pier roadbed 1
Consider.The depth of slot 3 is deformed not less than 2.0m, it is same to need to be considered according to the depth of bridge pier roadbed 1.
In addition, stress relief structure further includes the stress relief hole 4 between deformation slot 3 and bridge pier roadbed 1, this implementation
Example stress relief hole 4 of the row along the longitudinally spaced arrangement of railway, high-pressure rotary jet grouting pile between deformation slot 3 and bridge pier roadbed 1 are being applied
After the lateral thrust generated during work is applied on release aperture 4 and deformation slot 3, pass through stress relief hole 4 and deformation slot 3
On gap discharge, provide enough spaces for the transverse shifting of bridge pier roadbed 1.
The present embodiment most has in technical solution, and the spacing of two neighboring stress relief hole 4 is equal and spacing range is
1.0m~2.0m, the aperture of each stress relief hole 4 is equal and pore diameter range is 127mm~148mm, in actual use can be with
It is adjusted correspondingly according to the situation at scene.
In order to protect the existing building 2 on railway periphery, the present embodiment passes through in bridge pier roadbed for the construction of high-pressure rotary jet grouting pile 7
Barrier structure is set to prevent the transmission of stress between 1 and existing building 2.The barrier structure of the present embodiment includes steel sheet pile group
Into the first barrier structure 5 and the second barrier structure 6, the first barrier structure 5 is composed of plurality of steel plates stake inserting piling, along at a high speed
The genesis analysis of railway is arranged between bridge pier roadbed 1 and existing building 2, and the first barrier structure 5 can be effectively by high pressure
The huge stress that rotary churning pile 7 generates in constructing intercepts, these stress is avoided to be protected to the ground of existing building 2
The safety of existing building 2.
In order to further intercept the transmission of stress, more collect also for the thrust that high-pressure rotary jet grouting pile 7 is made to be generated in constructing
It is transferred to middlely on bridge pier roadbed 1, the present embodiment is also provided at both ends with horizontal along high-speed railway in the longitudinal direction of the first barrier structure 5
Second barrier structure 6 of direction arrangement, the second barrier structure 6 are also the interception structure completed by the construction of steel sheet pile inserting piling.Second
6 and first barrier structure 5 of barrier structure forms the U mouthfuls of U-shaped structures towards bridge pier roadbed 1, revolves high pressure as shown in Fig. 2, concentrating
The thrust that generates forces 1 transverse shifting of bridge pier roadbed to complete correction on bridge pier roadbed 1 in spray 7 work progress of stake.This reality
The steel sheet pile for applying example can be extracted after the completion of last construction from roadbed, is remained next use, can so be saved to the greatest extent
Material saving reduces the cost of construction reformation.
Specifically implementation is：1st, when high-speed railway bridge pier roadbed 1, lateral shift occurs for warp-wise Along Railway one side
When, bridge pier roadbed 1 opposite side set deformation slot 3, and deformation slot 3 in filling can prevent deformation slot collapse and
The material that slot 3 deforms is deformed, generally selects good hard foam, foamed material can effectively prevent deformation slot 3 from existing
It collapses in extrusion process, multiple stress relief holes 4, Mei Geying is set in the region between deformation slot 3 and bridge pier roadbed 1
The bottom of power release aperture 4 extends downwardly, and through the soft stratum area of 1 lower section of bridge pier roadbed, 4 in each stress relief hole
Fill up medium coarse sand or rubble；
2nd, longitudinally inserted along circuit in the region occurred at lateral displacement between bridge pier roadbed 1 and existing building 2
It makes a call to row's steel sheet pile and forms the first barrier structure 5 obstructed in stress transfer to the ground of existing building 2, in the first barrier knot
Row steel sheet pile formation second barrier structure 6 of longitudinal both ends difference inserting piling one row of construction of structure 5 along high-speed railway transverse direction, first
5 and second barrier structure 6 of barrier structure forms the U mouthful U-shaped structures towards bridge pier roadbed 1, then steel sheet pile and bridge pier roadbed 1 it
Between region internal drilling construct a row or multi-row high-pressure rotary jet grouting pile 7, huge pushed away using what is generated in 7 work progress of high-pressure rotary jet grouting pile
Dynamic bridge pier roadbed 1 is pushed to the movement of deformation slot one side, so as to fulfill the correction to high-speed railway bridge pier roadbed 1, all high pressure rotations
It sprays in the U-shaped structure that the position that stake 7 is constructed all is formed in the first barrier structure 5 and the second barrier structure 6, high-pressure rotary jet grouting pile 7 can
Multiple rows of to have, often row sets more；
3rd, it is after the completion of 1 Deviation Correction Construction of high-speed railway bridge pier roadbed, deformation slot 3 is closely knit with solidification material packing, generally
In the case of take out the hard foam originally placed, to deformation slot 3 in casting concrete by deform slot 3 close, extract steel plate
Stake remains next use, you can completes the process entirely laterally rectified a deviation.
The advantages of basic principle, main feature and the utility model of the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Simply illustrate the principle of the utility model, the utility model can also on the premise of not departing from the spirit and scope of the utility model
There are various changes and modifications, these various changes and improvements fall within the scope of the claimed invention.The utility model will
Protection domain is asked to be defined by appended claims and its equivalent.
Claims (9)
1. a kind of high ferro bridge pier roadbed isolation error-correction structure for protecting periphery existing building, including bridge pier roadbed (1), the bridge
The one side of pier roadbed (1) is provided with existing building (2), and the opposite side of the bridge pier roadbed (1) is provided with stress relief structure；Institute
It states and high-pressure rotary jet grouting pile (7) is provided between bridge pier roadbed (1) and the existing building (2), it is characterised in that：The high-pressure rotary-spray
Being provided between stake (7) and the existing building (2) can the first barrier structure (5)；The high-pressure rotary jet grouting pile (7) is longitudinal along railway
The length of arrangement is not more than length of first barrier structure (5) along railway longitudinal direction；The depth of the high-pressure rotary jet grouting pile (7) is not
More than the depth of first barrier structure (5).
2. a kind of high ferro bridge pier roadbed isolation error-correction structure for protecting periphery existing building according to claim 1,
It is characterized in that：First barrier structure (5) is the steel sheet pile that a row is longitudinally arranged along railway.
3. a kind of high ferro bridge pier roadbed isolation error-correction structure for protecting periphery existing building according to claim 2,
It is characterized in that：The steel sheet pile be provided at both ends with along railway lateral arrangement and towards railway side extend the second barrier structure (6).
4. a kind of high ferro bridge pier roadbed isolation error-correction structure for protecting periphery existing building according to claim 3,
It is characterized in that：Second barrier structure (6) is the side steel sheet pile for being arranged at the steel sheet pile both sides.
5. a kind of high ferro bridge pier roadbed isolation error-correction structure for protecting periphery existing building according to claim 4,
It is characterized in that：The steel sheet pile and the side steel sheet pile form a U font overall structures, and the opening of its U-shaped is towards iron
Road.
6. a kind of high ferro bridge pier roadbed isolation error-correction structure for protecting periphery existing building according to claim 1,
It is characterized in that：The stress relief structure is along the longitudinally disposed deformation slot (3) of railway, and the interior filling of deformation slot (3) can
Prevent deformation slot from collapsing, and the material of allowable strain slot deformation.
7. a kind of high ferro bridge pier roadbed isolation error-correction structure for protecting periphery existing building according to claim 6,
It is characterized in that：The width range of the deformation slot (3) is 0.5m~2.0m, and the depth of the deformation slot (3) is not less than 2.0m.
8. a kind of high ferro bridge pier roadbed isolation error-correction structure for protecting periphery existing building according to claim 6,
It is characterized in that：In region between the deformation slot (3) and bridge pier roadbed (1) multiple stress being longitudinally arranged along railway is set to release
Discharge hole (4), the bottom of each stress relief hole (4) extend downwardly, and the soft stratum area below bridge pier roadbed, Mei Geying
Medium coarse sand or rubble are filled up in power release aperture (4).
9. a kind of high ferro bridge pier roadbed isolation error-correction structure for protecting periphery existing building according to claim 8,
It is characterized in that：The spacing of two neighboring stress relief hole (4) is equal and spacing range is 1.0m~2.0m；Each stress release
The aperture in hole (4) is equal and pore diameter range is 127mm~148mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721090755.0U CN207419555U (en) | 2017-08-29 | 2017-08-29 | A kind of high ferro bridge pier roadbed isolation error-correction structure for protecting periphery existing building |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721090755.0U CN207419555U (en) | 2017-08-29 | 2017-08-29 | A kind of high ferro bridge pier roadbed isolation error-correction structure for protecting periphery existing building |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386029A (en) * | 2017-08-29 | 2017-11-24 | 中铁第四勘察设计院集团有限公司 | A kind of high ferro bridge pier roadbed isolation method for correcting error for protecting periphery existing building |
| CN109537418A (en) * | 2018-12-10 | 2019-03-29 | 鄂宇 | It crosses and wears construction of the highway building method for supporting |
| CN111622280A (en) * | 2020-04-20 | 2020-09-04 | 中铁第四勘察设计院集团有限公司 | Method for correcting pile foundation offset through high-pressure grouting |
| CN111648777A (en) * | 2020-05-25 | 2020-09-11 | 中铁四院集团岩土工程有限责任公司 | Horizontal deviation rectifying method for shield tunnel |
| CN113107028A (en) * | 2021-04-13 | 2021-07-13 | 中铁十四局集团有限公司 | Lifting grouting method for existing building |
| CN113530597A (en) * | 2021-07-22 | 2021-10-22 | 淮北矿业（集团）有限责任公司 | Stress barrier type mining subsidence area earth surface structure protection method |
-
2017
- 2017-08-29 CN CN201721090755.0U patent/CN207419555U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386029A (en) * | 2017-08-29 | 2017-11-24 | 中铁第四勘察设计院集团有限公司 | A kind of high ferro bridge pier roadbed isolation method for correcting error for protecting periphery existing building |
| CN107386029B (en) * | 2017-08-29 | 2019-08-20 | 中铁四院集团岩土工程有限责任公司 | A kind of high-speed rail bridge pier roadbed isolation method for correcting error for protecting periphery existing building |
| CN109537418A (en) * | 2018-12-10 | 2019-03-29 | 鄂宇 | It crosses and wears construction of the highway building method for supporting |
| CN111622280A (en) * | 2020-04-20 | 2020-09-04 | 中铁第四勘察设计院集团有限公司 | Method for correcting pile foundation offset through high-pressure grouting |
| CN111648777A (en) * | 2020-05-25 | 2020-09-11 | 中铁四院集团岩土工程有限责任公司 | Horizontal deviation rectifying method for shield tunnel |
| CN113107028A (en) * | 2021-04-13 | 2021-07-13 | 中铁十四局集团有限公司 | Lifting grouting method for existing building |
| CN113530597A (en) * | 2021-07-22 | 2021-10-22 | 淮北矿业（集团）有限责任公司 | Stress barrier type mining subsidence area earth surface structure protection method |
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Address after: 430063 No. 745 Heping Avenue, Wuchang, Hubei, Wuhan Patentee after: China Railway Siyuan Group Engineering Construction Co., Ltd Address before: 430063 No. 745 Heping Avenue, Wuchang, Hubei, Wuhan Patentee before: GEOTECHNICAL ENGINEERING CO., LTD. OF CHINA RAILWAY SIYUAN SURVEY AND DESIGN GROUP Co.,Ltd. |
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