CN206070573U - It is a kind of be applied under wear the big of heavily loaded highway and reinforce foundation ditch combinative structure across open trench tunnel and steel pipe - Google Patents
It is a kind of be applied under wear the big of heavily loaded highway and reinforce foundation ditch combinative structure across open trench tunnel and steel pipe Download PDFInfo
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- CN206070573U CN206070573U CN201621032572.9U CN201621032572U CN206070573U CN 206070573 U CN206070573 U CN 206070573U CN 201621032572 U CN201621032572 U CN 201621032572U CN 206070573 U CN206070573 U CN 206070573U
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Abstract
This utility model is related under a kind of being applied to wear the big of heavily loaded highway and reinforces foundation ditch combinative structure with steel pipe across open trench tunnel, belongs to highway engineering technical field.The mould of China's capital construction in recent years is increased, and highway network is also constantly being encrypted, and the situation of tunnel Xia Chuan highways often occurs.It is a kind of complicated operating mode that existing heavily loaded highway is wherein worn greatly under, shallow embedding, multiple-arch tunnel, and this utility model proposes a kind of new combinative structure for the operating mode, to solve the technical barrier in terms of tunneling and two contradiction of tunnel top highway.This structure is made up of three parts：The pre-reinforcement supporting of foundation ditch both sides, open cut tunnel lining cutting, open cut tunnel backfill.Pre-reinforcement supporting is divided into two parts again：Steel pipe grouting and reinforcing Rock And Soil is set by wall profiles from foundation ditch both sides, that steel pipe grouting and reinforcing is set from excavation slope is domatic.Open cut tunnel lining cutting is large volume concrete structural.Three lamination of open cut tunnel backfill point is real to be filled.This new structure reasonable stress, better economy, with very strong practicality and dissemination.
Description
Technical field
This utility model belongs to field of engineering technology, and in particular to it is a kind of be applied under wear big across the open cut tunnel of heavily loaded highway
Road reinforces foundation ditch combinative structure with steel pipe.
Background technology
In recent years, as China's infrastructure construction scale is increased, road quality classification is greatly improved, road network is constantly encrypted, and is gone out
The situation that substantial amounts of tunnel is intersected with highway has been showed, wherein existing heavy duty is worn under, shallow embedding, multiple-arch tunnel greatly（Coal is transported such as）It is public
Road is a kind of more complicated operating mode.
For existing highway is worn greatly under shallow tunnel, when possessing the condition that highway is changed shifting, using cut and cover tunneling,
A foundation ditch is dug out in face from top to bottom in situ, pours the open-cut tunnel structure in tunnel, then backfill in foundation ditch, recovers original ground.
The critical process of cut and cover method includes：Slope retaining, earth excavation, structure construction and waterproofing work etc..Wherein side slope
Supporting is to ensure that the key technology of safe construction.Slope retaining, namely the usual manner of foundation pit walls supporting mainly has：Slope is opened
Digging, shaped steel supporting, diaphragm wall supporting, cast-in-place concrete pile supporting, soil-nail wall support, anchor pole (rope) supporting, concrete and steel knot
Structure supports supporting and aforementioned type combined etc..
What is worn under tunnel is existing heavily loaded highway, to prevent constructing tunnel from terminating the settlement after construction on rear ground, being particularly not
Uniform settlement：On the one hand, to reduce as far as possible to foundation ditch both sides protolith soil disturbance in Excavation Process, or pre-add in advance
Gu the part Rock And Soil；After the completion of another aspect open cut tunnel is poured, pushing up backfilling material and compactness to hole must have higher requirement.Base
In the background, premise, the utility model proposes it is a kind of be applied under wear the big of heavily loaded highway and reinforce base with steel pipe across open trench tunnel
Hole combinative structure, to overcome the deficiencies in the prior art, solves the problems, such as field of engineering technology urgent need to resolve.
The content of the invention
The purpose of this utility model is to solve the deficiencies in the prior art, there is provided it is a kind of be applied under wear heavily loaded highway
Big to reinforce foundation ditch combinative structure across open trench tunnel and steel pipe, the structure stress is reasonable, better economy, with very strong practicality
And dissemination.
For achieving the above object, the technical solution adopted in the utility model is as follows：
It is a kind of be applied under wear the big of heavily loaded highway and reinforce foundation ditch combinative structure across open trench tunnel and steel pipe, be to carry in original weight
On the road surface of highway, a road surface fluting, bottom land level are respectively provided with along the both sides of vehicle traveling direction at the top of foundation ditch；
Each road surface fluting has set downwards the first reinforcement walls and the second reinforcement walls, the first reinforcement walls and the second reinforcement walls
Metope trend it is parallel with vehicle traveling direction；
First reinforcement walls are formed a line by many steel pipes in the same size and are constituted, and adjacent two steel pipes are parallel to each other, and
Away from for 2m；First reinforcement walls and road surface fluting plane perpendicular；
Second reinforcement walls are formed a line by many steel pipes in the same size and are constituted, and adjacent two steel pipes are parallel to each other, and
Away from for 1m；Second reinforcement walls are 75 ° with the angle of road surface fluting bottom surface；
Bottom surface is slotted as section with road surface, the first reinforcement walls are 1m with distance of second reinforcement walls at the section；
In the fluting groove of road surface, bottom is provided with concrete connecting-beam layer；
Along foundation ditch it is domatic to it is domatic it is interior set multigroup 3rd reinforcement walls, the 3rd reinforcement walls are by many steel pipes rows in the same size
Constitute into string, adjacent two steel pipes are parallel to each other, and spacing is 1.2m；3rd reinforcement walls are domatic with foundation ditch perpendicular, and with
Horizontal plane is in 27 ° of angles；The metope trend direction one that bottom of slope is pushed up from slope domatic with the foundation ditch on slope which is located of the 3rd reinforcement walls
Cause；The spacing of the 3rd reinforcement walls of two adjacent groups is 2m；
Shotcrete layer is additionally provided with foundation ditch is domatic；
Foundation Pit bottom is provided with the substrate bed course of open cut tunnel lining cutting, and big bridging arch tunnel is provided with the substrate bed course of open cut tunnel lining cutting
The open cut tunnel lining cutting in road；
Slabstone concrete layer and the first mortar flag stone layer are filled with and open cut tunnel lining cutting between from top to bottom foundation ditch is domatic；Double
The second mortar flag stone layer is provided between the intersecting keystone open cut tunnel lining cutting in hole；First mortar flag stone layer, the second mortar flag stone layer are equal
With the outer top of open cut tunnel lining cutting in same level；
Graded broken stone packing layer is equipped with the first mortar flag stone layer and the second mortar flag stone layer；In graded broken stone filler
New heavily loaded highway pavement is equipped with layer and on concrete connecting-beam layer；Described new heavily loaded highway pavement carries public with original weight
Road road surface is in same level；
Wherein, the top of the top of the first reinforcement walls and the second reinforcement walls is in concrete connecting-beam layer；First reinforces
The bottom of the bottom of wall and the second reinforcement walls is respectively positioned on below the absolute altitude of open cut tunnel lining cutting inverted arch bottom；
First reinforces steel pipe within the walls, second reinforces steel pipe within the walls and the 3rd steel pipe reinforced within the walls is non-intersect.
It is further preferred that the domatic slope ratio of foundation ditch is 1:0.5.
It is further preferred that the groove width of road surface fluting is 2m, groove depth is 0.9m.
It is further preferred that a width of 2m of concrete connecting-beam layer, thickness is 0.5m
It is further preferred that concrete connecting-beam layer is stretched on the top of the top of the first reinforcement walls and the second reinforcement walls
0.3m；Below open cut tunnel lining cutting inverted arch bottom absolute altitude at least 1.5m is stretched in the bottom of the bottom of the first reinforcement walls and the second reinforcement walls.
It is further preferred that the first reinforcement walls, the second reinforcement walls are 108 steel pipes of φ using steel pipe；3rd reinforces
The adopted steel pipe of wall is 42 steel pipes of φ, and length is 5m.
It is further preferred that the substrate cushion thickness of open cut tunnel lining cutting is 0.5m.
It is further preferred that slabstone concrete layer thickness is 6.5m；First mortar flag stone layer height is 5.5m；Second slurry
It is 3m to build slabstone layer height；Graded broken stone bed stuffing height is 1.2m.
It is further preferred that open cut tunnel lining cutting arch ring minimum thickness is 1.1m.
It is further preferred that in the steel pipe of the first reinforcement walls, in the steel pipes of the second reinforcement walls and the 3rd reinforcement walls steel
Steel reinforcement cage is equipped with pipe；Steel pipe be punching can slip casting steel pipe.
This utility model has the advantage that：
This utility model is a kind of be applied under wear the big of heavily loaded highway and reinforce foundation ditch combinative structure across open trench tunnel and steel pipe,
For it is newly-built it is big wear existing heavily loaded highway situation under, shallow tunnel, propose a kind of bright group built tunnel and reinforce foundation ditch of open cut
Structure is closed, both sides problem is solved：First, newly built tunnels safety, economically Construction Problems, i.e. structure have enough strong
Degree, stability and durability, adapt to the needs operated after building up；Second, the recovery problem of former existing highway is particularly which heavy
Carry the recovery problem of function.
After the completion of construction, settlement after construction is the main cause for affecting former existing highway to use, and is to reduce sedimentation, and it is right to prevent
The disturbance of the protolith soil body：By arranging the first reinforcement walls and the second reinforcement walls before excavation of foundation pit, first to Rock And Soil can slip casting it is pre-
Reinforce, and the laying of the top of the first reinforcement walls and the second reinforcement walls is with reference to Gravity Retaining Wall section configuration, in the protolith soil body
Middle formation plays a retaining wall for gear effect for one；The domatic lower quilt of steel pipe grouting and reinforcing after excavation of foundation pit by the 3rd reinforcing within the walls
The Rock And Soil of disturbance, and sealing treatment is done using gunite concrete is domatic to disturbance.
Tunnel is shallow embedding, directly bears the heavy duty of highway above which, by calculating, this utility model design determines that structure is thick
Degree, and inverted arch is set to flat with convenient construction, process is filled and led up in two hole arch intersection areas and forms the second mortar flag stone layer,
To prevent stress concentration.
To reduce earthwork evacuation amount, and the scale of suitable control foundation ditch pre-reinforcement, excavation of foundation pit by between slow slope and
Pre-reinforcement between two kinds of digging modes of straight wall, slope is carried out compared with abrupt slope rate.
In addition, this utility model structure is done from cost with alternative bridge, two class formation of rectangle Under-cross tunnel
Contrast：Compared to bridge structure, one across 40m or two across 20m, this utility model structure can saving construction cost more than 20%；Compared to double
The Under-cross tunnel of hole 20m rectangular cross sections, this utility model structure can saving construction costs more than 30%.In addition, from quick construction degree,
The aspects such as the control technique of settlement after construction effect are contrasted, and this utility model structure is also superior to another two class formation.
To sum up, this utility model is a kind of be applied under wear the big of heavily loaded highway and reinforce foundation ditch across open trench tunnel and steel pipe and combine
Structure is that structure is basic from the arched tunnel of reasonable stress, at utmost protects the protolith soil body not disturbed by reinforcement measure
It is dynamic, take backfill controlling measurement settlement after construction；This utility model new structure both safety, economically newly-built Under-cross tunnel, and
Quickly, it is good to have recovered the current of the existing heavily loaded highway in tunnel top.This structure has very strong practicality and dissemination.
Description of the drawings
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise for not paying creative work
Under, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 wears the big of heavily loaded highway and reinforces foundation ditch combinative structure with steel pipe across open trench tunnel under being applied to for this utility model
108 steel pipes of foundation ditch groove both sides φ arrange cross-sectional view.
Fig. 2 wears the big of heavily loaded highway and reinforces foundation ditch combinative structure with steel pipe across open trench tunnel under being applied to for this utility model
42 steel pipes of excavation of foundation pit slope support φ arrange cross-sectional view.
Fig. 3 wears the big of heavily loaded highway and reinforces foundation ditch combinative structure with steel pipe across open trench tunnel under being applied to for this utility model
Excavation of foundation pit slope support drawing（So that right half foundation ditch is domatic as an example）.
Fig. 4 wears the big of heavily loaded highway and reinforces foundation ditch combinative structure with steel pipe across open trench tunnel under being applied to for this utility model
42 steel pipe arranged for interval relation plane graph of 108 steel pipes of φ and φ（By taking right half foundation pit side-wall as an example）.
Fig. 5 wears the big of heavily loaded highway and reinforces foundation ditch combinative structure with steel pipe across open trench tunnel under being applied to for this utility model
Open cut tunnel lining cutting cross-sectional view.
Fig. 6 wears the big of heavily loaded highway and reinforces foundation ditch combinative structure with steel pipe across open trench tunnel under being applied to for this utility model
Open cut tunnel backfills cross-sectional view.
Fig. 7 wears the big of heavily loaded highway and reinforces foundation ditch combinative structure with steel pipe across open trench tunnel under being applied to for this utility model
Open cut tunnel backfills layering/piecemeal cross-sectional view.
Fig. 8 wears the big of heavily loaded highway and reinforces foundation ditch combinative structure with steel pipe across open trench tunnel under being applied to for this utility model
Total composition cross-sectional view.
Wherein：1st, original weight carries the road surface of highway；2nd, foundation ditch；3rd, pre-reinforcement support system；3a, road surface fluting；3b, first add
Gu Qiang；3c, the second reinforcement walls；3d, concrete connecting-beam layer；4th, foundation ditch is domatic；4a, shotcrete layer；4b, the 3rd reinforcement walls；
5th, the substrate bed course of open cut tunnel lining cutting；6th, open cut tunnel lining cutting；6a, open cut tunnel lining cutting inverted arch；6b, open cut tunnel lining cutting inverted arch above abutment wall and arch
Circle；7th, open cut tunnel backfill structure；7a, piece stone concrete；7b, the first mortar flag stone；7c, the second mortar flag stone；7d, graded broken stone are filled out
The bed of material；8th, new heavily loaded highway pavement；
The direction of arrow is to push up the direction of bottom of slope from slope.
Specific embodiment
This utility model is described in further detail with reference to embodiment.
It will be understood to those of skill in the art that the following example is merely to illustrate this utility model, and should not be regarded as limiting
Scope of the present utility model.Unreceipted particular technique, annexation or condition person in embodiment, according to document institute in the art
The technology of description, annexation or condition are carried out according to product description.Material therefor or the unreceipted production firm of equipment
Person, is and can pass through to buy the conventional products for obtaining.
It is a kind of be applied under wear the big of heavily loaded highway and reinforce foundation ditch combinative structure across open trench tunnel and steel pipe, be to carry in original weight
On the road surface 1 of highway, a road surface fluting 3a, bottom land level are respectively provided with along the both sides of 2 top vehicle traveling direction of foundation ditch；
Each road surface fluting 3a has set downwards the first reinforcement walls 3b and the second reinforcement walls 3c, the first reinforcement walls 3b and the
The metope trend of two reinforcement walls 3c is parallel with vehicle traveling direction；First reinforcement walls 3b are lined up by many steel pipes in the same size
String is constituted, and adjacent two steel pipes are parallel to each other, and spacing is 2m；First reinforcement walls 3b and road surface fluting 3a plane perpendiculars；
Second reinforcement walls 3c are formed a line by many steel pipes in the same size and are constituted, and adjacent two steel pipes are parallel to each other, and
Spacing is 1m；Second reinforcement walls 3c are 75 ° with the angle of road surface fluting 3a bottom surfaces；
With road surface fluting 3a bottom surfaces as section, distance of first reinforcement walls 3b with the second reinforcement walls 3c at the section is
1m；
In the fluting 3a grooves of road surface, bottom is provided with concrete connecting-beam layer 3d；
Road surface fluting 3a, the first reinforcement walls 3b, the second reinforcement walls 3c, concrete connecting-beam layer 3d collectively constitute pre-reinforcement supporting
System 3；
Along foundation ditch domatic 4 to it is domatic it is interior set multigroup 3rd reinforcement walls 4b, the 3rd reinforcement walls 4b are in the same size by many
Steel pipe forms a line composition, and adjacent two steel pipes are parallel to each other, and spacing is 1.2m；3rd reinforcement walls 4b, 4 phase domatic with foundation ditch
Vertically, and horizontal by 27 ° of angles；The metope trend of the 3rd reinforcement walls 4b is pushed up to from slope with the foundation ditch domatic 4 on slope which is located
The direction in hillside fields is consistent；The spacing of the 3rd reinforcement walls 4b of two adjacent groups is 2m；
Shotcrete layer 4a is additionally provided with foundation ditch domatic 4；
The hole of foundation ditch 2 bottom is provided with the substrate bed course 5 of open cut tunnel lining cutting, on the substrate bed course 5 of open cut tunnel lining cutting is provided with big bridging
The open cut tunnel lining cutting 6 in arch tunnel；Open cut tunnel lining cutting 6 is by open cut tunnel lining cutting inverted arch 6a and open cut tunnel lining cutting inverted arch above abutment wall and arch ring 6b groups
Into.
It is filled with slabstone concrete layer 7a and the first mortar flag stone layer between foundation ditch domatic 4 and open cut tunnel lining cutting 6 from top to bottom
7b；The second mortar flag stone layer 7c is provided between the intersecting keystone open cut tunnel lining cutting in double holes；First mortar flag stone layer 7b, the second slurry
Ragstone layer 7c is built with the outer top of open cut tunnel lining cutting 6 in same level；
Graded broken stone packing layer 7d is equipped with the first mortar flag stone layer 7b and the second mortar flag stone layer 7c；In level with broken
New heavily loaded highway pavement 8 is equipped with hardcore layer 7d and on concrete connecting-beam layer 3d；Described new heavily loaded highway road
Face 8 is with original weight load highway pavement 1 in same level；
Wherein, the top of the top of the first reinforcement walls 3b and the second reinforcement walls 3c is in concrete connecting-beam layer 3d；The
The bottom of the bottom of one reinforcement walls 3b and the second reinforcement walls 3c is at least 1.5m below the absolute altitude of open cut tunnel lining cutting inverted arch 6a bottoms；
First steel pipe reinforced in steel pipe and the 3rd reinforcement walls 4b within the walls in the steel pipe of 3b, the second reinforcement walls 3c not phase
Hand over.
Preferably the domatic slope ratio of foundation ditch 2 is 1:0.5.2 depth of foundation ditch is according to specific design attitude, geological conditions
Comprehensively determine etc. condition.Foundation ditch 2 bottom width about 36m, top width about 50m, deep about 15m or so.
The groove width of road surface fluting 3a is 2m, and groove depth is 0.9m.
A width of 2m of concrete connecting-beam layer 3d, thickness is 0.5m.
Concrete connecting-beam layer 3d 0.3m are stretched in the top of the top of the first reinforcement walls 3b and the second reinforcement walls 3c；First
The bottom of the bottom of reinforcement walls 3c and the second reinforcement walls 3b is at least 1.5m below the absolute altitude of open cut tunnel lining cutting inverted arch 6a bottoms.
First reinforcement walls 3b, the second reinforcement walls 3c are 108 steel pipes of φ using steel pipe；
The adopted steel pipe of 3rd reinforcement walls 4b is 42 steel pipes of φ, and length is 5m.
5 thickness of substrate bed course of open cut tunnel lining cutting is 0.5m.Slabstone concrete layer 7a thickness is 6.5m；First mortar flag stone layer
7b is highly 5.5m；Second mortar flag stone layer 7c is highly 3m；Graded broken stone packing layer 7d is highly 1.2m.Open cut tunnel lining cutting 6 is encircleed
Circle minimum thickness is 1.1m.The steel pipe of the first reinforcement walls 3b is interior, the steel pipe of the second reinforcement walls 3c is interior and the steel of the 3rd reinforcement walls 4b
Steel reinforcement cage is equipped with pipe.
The big of heavily loaded highway is worn under being applied to for this utility model is a kind of above and reinforces foundation ditch group with steel pipe across open trench tunnel
The each ingredient of structure and essential implementation are closed, its work progress is summarized as follows：
The first step, construction foundation pit pre support system：Slot on tunnel top both sides road surface；108 steel pipes of φ are set from groove to be formed
First, second reinforcement walls.
Second step, excavation pit set 42 steel pipes of φ to the domatic of excavation, form the 3rd reinforcement walls.
3rd step, cut-and-cover tunnel lining cutting are poured：Need to take measures to process ground if pouring front foundation bearing capacity and being unsatisfactory for requirement
Base；Then levelling bed course is set in inverted arch substrate；The lining cutting in a hole is subsequently first poured from the bottom up, then pours another hole lining cutting.
4th step, cut-and-cover tunnel backfill：The general sequence of backfill is for from top to bottom；Backfill symmetrically must be carried out, both sides backfill
The native stone face discrepancy in elevation cannot be greater than 0.5m.
5th step, finally, recovers former road surface：In the top supercrust with crushed rock filler layer again making heavy duty highway in hole.
More than be that this utility model is a kind of and be applied under wear the big of heavily loaded highway and reinforce foundation ditch across open trench tunnel and steel pipe
The implementation steps and process of combinative structure.
Ultimate principle of the present utility model, principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry it should be appreciated that this utility model is not restricted to the described embodiments, described in above-described embodiment and description
Simply illustrate principle of the present utility model, on the premise of without departing from this utility model spirit and scope, this utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within the range of claimed this utility model.This utility model
Claimed scope is by appending claims and its equivalent thereof.
Claims (10)
1. it is a kind of be applied under wear the big of heavily loaded highway and reinforce foundation ditch combinative structure across open trench tunnel and steel pipe, it is characterised in that：
On the road surface that original weight carries highway, a road surface fluting, bottom land are respectively provided with along the both sides of vehicle traveling direction at the top of foundation ditch
Level；
Each road surface fluting has set downwards the wall of the first reinforcement walls and the second reinforcement walls, the first reinforcement walls and the second reinforcement walls
Face trend is parallel with vehicle traveling direction；
First reinforcement walls are formed a line by many steel pipes in the same size and are constituted, and adjacent two steel pipes are parallel to each other, and spacing is
2m；First reinforcement walls and road surface fluting plane perpendicular；
Second reinforcement walls are formed a line by many steel pipes in the same size and are constituted, and adjacent two steel pipes are parallel to each other, and spacing is
1m；Second reinforcement walls are 75 ° with the angle of road surface fluting bottom surface；
Bottom surface is slotted as section with road surface, the first reinforcement walls are 1m with distance of second reinforcement walls at the section；
In the fluting groove of road surface, bottom is provided with concrete connecting-beam layer；
Along foundation ditch it is domatic to it is domatic it is interior set multigroup 3rd reinforcement walls, the 3rd reinforcement walls line up one by many steel pipes in the same size
Row composition, adjacent two steel pipes are parallel to each other, and spacing is 1.2m；3rd reinforcement walls are domatic with foundation ditch perpendicular, and with level
Face is in 27 ° of angles；The metope trend of the 3rd reinforcement walls is domatic with the foundation ditch on slope which is located consistent to the direction of bottom of slope from slope top；Phase
The spacing of adjacent two group of the 3rd reinforcement walls is 2m；
Shotcrete layer is additionally provided with foundation ditch is domatic；
Foundation Pit bottom is provided with the substrate bed course of open cut tunnel lining cutting, on the substrate bed course of open cut tunnel lining cutting is provided with large span and double arch tunnel
Open cut tunnel lining cutting；
Slabstone concrete layer and the first mortar flag stone layer are filled with and open cut tunnel lining cutting between from top to bottom foundation ditch is domatic；In double hole phases
Hand over the second mortar flag stone layer is provided between keystone open cut tunnel lining cutting；First mortar flag stone layer, the second mortar flag stone layer with it is bright
The outer top of hole lining cutting is in same level；
Graded broken stone packing layer is equipped with the first mortar flag stone layer and the second mortar flag stone layer；On graded broken stone packing layer
And on concrete connecting-beam layer, it is equipped with new heavily loaded highway pavement；Described new heavily loaded highway pavement carries highway road with original weight
Face is in same level；
Wherein, the top of the top of the first reinforcement walls and the second reinforcement walls is in concrete connecting-beam layer；First reinforcement walls
The bottom of bottom and the second reinforcement walls is respectively positioned on below the absolute altitude of open cut tunnel lining cutting inverted arch bottom；
First reinforces steel pipe within the walls, second reinforces steel pipe within the walls and the 3rd steel pipe reinforced within the walls is non-intersect.
2. it is according to claim 1 be applied under wear the big of heavily loaded highway and reinforce foundation ditch across open trench tunnel and steel pipe and combine knot
Structure, it is characterised in that：The domatic slope ratio of foundation ditch is 1:0.5.
3. it is according to claim 1 be applied under wear the big of heavily loaded highway and reinforce foundation ditch across open trench tunnel and steel pipe and combine knot
Structure, it is characterised in that：The groove width of road surface fluting is 2m, and groove depth is 0.9m.
4. it is according to claim 3 be applied under wear the big of heavily loaded highway and reinforce foundation ditch across open trench tunnel and steel pipe and combine knot
Structure, it is characterised in that：A width of 2m of concrete connecting-beam layer, thickness is 0.5m.
5. it is according to claim 4 be applied under wear the big of heavily loaded highway and reinforce foundation ditch across open trench tunnel and steel pipe and combine knot
Structure, it is characterised in that：Concrete connecting-beam layer 0.3m is stretched in the top of the top of the first reinforcement walls and the second reinforcement walls；First adds
Below open cut tunnel lining cutting inverted arch bottom absolute altitude at least 1.5m roots are stretched in the bottom of the bottom of Gu Qiang and the second reinforcement walls.
6. it is according to claim 1 be applied under wear the big of heavily loaded highway and reinforce foundation ditch across open trench tunnel and steel pipe and combine knot
Structure, it is characterised in that：First reinforcement walls, the second reinforcement walls are 108 steel pipes of φ using steel pipe；The adopted steel of 3rd reinforcement walls
Manage as 42 steel pipes of φ, length is 5m roots.
7. it is according to claim 1 be applied under wear the big of heavily loaded highway and reinforce foundation ditch across open trench tunnel and steel pipe and combine knot
Structure, it is characterised in that：The substrate cushion thickness of open cut tunnel lining cutting is 0.5m.
8. it is according to claim 7 be applied under wear the big of heavily loaded highway and reinforce foundation ditch across open trench tunnel and steel pipe and combine knot
Structure, it is characterised in that：Slabstone concrete layer thickness is 6.5m；First mortar flag stone layer height is 5.5m；Second mortar flag stone layer
Highly it is 3m；Graded broken stone bed stuffing height is 1.2m.
9. it is according to claim 7 be applied under wear the big of heavily loaded highway and reinforce foundation ditch across open trench tunnel and steel pipe and combine knot
Structure, it is characterised in that：Open cut tunnel lining cutting arch ring minimum thickness is 1.1m.
10. it is according to claim 1 be applied under wear the big of heavily loaded highway and reinforce foundation ditch across open trench tunnel and steel pipe and combine
Structure, it is characterised in that：It is all provided with the steel pipe of the first reinforcement walls, in the steel pipe of the second reinforcement walls and in the steel pipe of the 3rd reinforcement walls
There is steel reinforcement cage；Steel pipe be punching can slip casting steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621032572.9U CN206070573U (en) | 2016-08-31 | 2016-08-31 | It is a kind of be applied under wear the big of heavily loaded highway and reinforce foundation ditch combinative structure across open trench tunnel and steel pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621032572.9U CN206070573U (en) | 2016-08-31 | 2016-08-31 | It is a kind of be applied under wear the big of heavily loaded highway and reinforce foundation ditch combinative structure across open trench tunnel and steel pipe |
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| Publication Number | Publication Date |
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| CN206070573U true CN206070573U (en) | 2017-04-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818485A (en) * | 2021-09-09 | 2021-12-21 | 中建五局土木工程有限公司 | Reverse construction method for open-cut arched tunnel in sandy gravel stratum near river |
| CN114482088A (en) * | 2022-01-06 | 2022-05-13 | 中铁工程设计咨询集团有限公司 | Precast pile reinforced structure of tunnel and construction method thereof |
-
2016
- 2016-08-31 CN CN201621032572.9U patent/CN206070573U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818485A (en) * | 2021-09-09 | 2021-12-21 | 中建五局土木工程有限公司 | Reverse construction method for open-cut arched tunnel in sandy gravel stratum near river |
| CN113818485B (en) * | 2021-09-09 | 2023-10-13 | 中建五局土木工程有限公司 | Reverse-acting quick and safe construction method for open cut arch tunnel in river facing sandy pebble stratum |
| CN114482088A (en) * | 2022-01-06 | 2022-05-13 | 中铁工程设计咨询集团有限公司 | Precast pile reinforced structure of tunnel and construction method thereof |
| CN114482088B (en) * | 2022-01-06 | 2023-09-12 | 中铁工程设计咨询集团有限公司 | Precast pile reinforcing structure of tunnel and construction method thereof |
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