CN205874851U - Ballastless track roadbed structure is made up with stake raft with section to flexible stake - Google Patents
Ballastless track roadbed structure is made up with stake raft with section to flexible stake Download PDFInfo
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- CN205874851U CN205874851U CN201620554635.0U CN201620554635U CN205874851U CN 205874851 U CN205874851 U CN 205874851U CN 201620554635 U CN201620554635 U CN 201620554635U CN 205874851 U CN205874851 U CN 205874851U
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Abstract
The utility model relates to a ballastless track roadbed structure is made up with stake raft with section to flexible stake is mainly spouted stake, soil cement board, is prefabricated foot wall, cement graded broken stone and soil moved in to improve the original by drilling bored concrete pile, raft board, powder and broadcasts sowing the bank protection and constitute, the powder spouts the periphery that drilling bored concrete pile upper end was located in the stake, and the raft board sets up on the bed course at drilling bored concrete pile top, raft slab muscle and the drilling bored concrete pile overhanging steel bar connection in top, both sides are located to the soil cement board, connect through being connected the step with the raft board, pre -buried drawknot is held and is connected in the foot wall drawknot muscle of prefabricated foot wall and the soil cement board, road bed cement graded broken stone both sides set up the soil moved in to improve the original and broadcast sowing the bank protection, drilling bored concrete pile owner muscle overcoat has PVC to keep apart pipe, drilling bored concrete pile top embedded ring shape PVC pipe, pre -buried in the raft board have a steel measuring staff mounting that is used for fixed steel measuring staff to leave developments back injected hole. The utility model discloses a ballastless track roadbed structure is made up with stake raft with section to flexible stake has advantages such as environment friendly, construction convenience, low in cost.
Description
Technical field
This utility model relates to a kind of flexible pile and combines ballastless track roadbed structure with stake raft with section, it is adaptable to weak soil ground
The subgrade engineering in district, is particularly suited for the ballastless track roadbed construction of high-moisture ultra-soft soil.
Background technology
Recently as the high speed development of China railways cause, the railway traffic construction in Wenzhou is just like a raging fire carrying out
In, Wenzhou Area major part is Soft Clay, and silt depth is big, and moisture content is saturated, and foundation capability is low, this
Carry out the construction of ballastless track roadbed under the conditions of matter, there is difficulty very big, constructional difficulties, structure it is difficult to ensure that, cause constructing into
Degree stagnation.
The construction of traditional weak soil high-moisture roadbed, mainly uses the mode of cast-in-situ bored pile consolidated subsoil, but
Owing to relating to ultra-soft soil, water content saturated conditions is serious, is frequently encountered all difficulties in construction, as collapse hole, ground sink
Fall, deflected file etc., mistakes and omissions are numerous, cause construction speed slow, are chronically at the state of process problem.
In sum, though existing Reinforcement of Soft Soil Subgrade mode can obtain ideal under suitable conditions of project natural environment
Foundation Treatment Effect, but reply high-moisture ultra-soft soil subgrade construction in there is substantial amounts of weak point.In consideration of it, mesh
Before need badly invent a kind of Stability Analysis of Structures, bearing capacity is high, economic benefit is excellent high-moisture ultra-soft soil flexible pile composite foundation
Ballastless track roadbed construction method is combined with section with stake raft.High-moisture ultra-soft soil flexible pile composite foundation and the same section of stake raft
Combination ballastless track roadbed structure is constructed, easy construction and cheap, and major part parts are reusable, has certain
Economic technology benefit.
Summary of the invention
The purpose of this utility model is to provide a kind of flexible pile to combine ballastless track roadbed structure, power with stake raft with section
The good consolidation process of ground of realistic existing high-moisture ultra-soft soil, and there is outstanding structural stability, reach major part portion
Part reuses.
For realizing above-mentioned technical purpose, this utility model have employed techniques below scheme:
Flexible pile combines ballastless track roadbed structure with stake raft with section, it is characterised in that: described roadbed is mainly by holing
Bored concrete pile (1), raft plate (7), powder-spray pile (6), soil cement plate (9), prefabricated foot wall (29), cement stabilized graded macabam (17) and soil moved in improve the original spread
Broadcast bank protection (19) composition；Powder-spray pile (6) is located at the periphery of cast-in-situ bored pile (1) upper end, and raft plate (7) is arranged at cast-in-situ bored pile
(1), on the bed course (30) at top, raft plate (7) reinforcing bar is connected with cast-in-situ bored pile (1) top protruding bar；Soil cement plate (9) sets
In raft plate (7) both sides, connect by being connected step (8) with raft plate (7)；Foot wall tension rib (27) of prefabricated foot wall (29) and cement
Drawknot end (26) pre-buried in soil plate (9) connects；Roadbed cement stabilized graded macabam (17) both sides arrange soil moved in improve the original and broadcast sowing bank protection (19)；Bore
PVC isolated tube (4), pre-buried ring-shaped P VC in cast-in-situ bored pile (1) top pipe (5) it is cased with outside the main muscle of hole pouring pile (3)；In raft plate (7)
It is embedded with steel measuring staff fixture (12) for fixing steel measuring staff (14), and leaves dynamic grouting behind shaft or drift lining hole (24).
Further, the main muscle of cast-in-situ bored pile (3) PVC isolated tube (4) bottom rubber stopper (32) plug-hole outward；Boring fills
Ring-shaped P VC pipe (5) at note stake (1) top is internal has poured into static breaking agent (33).
Steel measuring staff (14) is threaded stagewise steel measuring staff, and it is outside equipped with PVC pillar (15).
Dynamically being provided with Grouting Pipe (25) in grouting behind shaft or drift lining hole (24), Grouting Pipe (25) top closing cock (23) seals.
Dense mesh screen (22) it is provided with outside cast-in-situ bored pile (1) steel reinforcement cage.
Above-mentioned flexible pile and stake raft combine the construction method of ballastless track roadbed structure with section, and its main construction procedure is such as
Under:
1) surveying and locating and earth excavation: site operation region is carried out setting-out according to design drawing, repaiies sidewalk and draining
Ditch (10), and carry out the road excavation leveling work of early stage；
2) cement injection pile: bored pile construction region first carries out the pre-reinforcement of ground, powder with low-mix ash quantity powder-spray pile
Spray stake (6) top pre-buried steel casing fixture (20)；
3) bored pile construction: install steel pile casting (31), and by steel pile casting fixture (20) fixed position, bore subsequently
Hole, and carry out the construction of reinforcing bar, concrete；
4) raft plate construction: pour one layer of bed course (30), colligation raft plate (7) reinforcing bar and the overhanging steel in cast-in-situ bored pile (1) top
Muscle connects, pre-buried good steel measuring staff fixture (12), PVC pillar (15), and stays and set dynamic grouting behind shaft or drift lining hole (24)；
5) soil cement plate construction: joints cement soil plate (9), connects by being connected step (8) with raft plate (7), pre-buried drawknot
End (26)；
6) prefabricated foot wall is installed: installing both sides prefabricated foot wall (29), foot wall tension rib (27) is pre-buried with soil cement plate (9)
Drawknot end (26) connects；
7) roadbed filling: roadbed filling divides the cement stabilized graded macabam (17) of three layers of different gradation, and is compacted, and both sides are soil moved in improve the original
Broadcast sowing bank protection (19), and build outward a layer concrete hollow brick (18)；
8) displacement skirt piles construction: roadbed both sides set displacement skirt piles (11), both sides, road surface set monitoring stake (16), in construction
Dynamic monitoring displacement settles.
This utility model has following feature and a beneficial effect:
(1) use flexible pile composite foundation to combine with section with stake raft, reduce the difficulty of construction of cast-in-situ bored pile, have
Good bearing capacity.
(2) reserved dynamic grouting behind shaft or drift lining hole in raft plate, is detected in construction when sedimentation is serious, can note after being carried out by injected hole
Slurry, easy construction.
(3) static breaking agent is injected by pre-buried ring-shaped P VC pipe, it is achieved that ecological, environmental protective cuts stake, decreases environment
Destroy.
(4) steel reinforcement cage is outside equipped with Dense mesh screen, can effectively suppress cast-in-situ bored pile over filling.
Accompanying drawing explanation
Fig. 1 is that this utility model high-moisture ultra-soft soil flexible pile composite foundation combines non-fragment orbit road with stake raft with section
Based structures schematic diagram.
Fig. 2 is cast-in-situ bored pile detail view；
Fig. 3 is ring-shaped P VC pipe schematic diagram；
Fig. 4 is this utility model construction flow chart
In figure: 1-cast-in-situ bored pile, 2-powder-spray pile retaining wall, the main muscle of 3-cast-in-situ bored pile, 4-PVC isolated tube, 5-ring-shaped P VC
Pipe, 6-powder-spray pile, 7-raft plate, 8-connects step, 9-soil cement plate, 10-gutter, 11-displacement skirt piles, and 12-steel measuring staff is fixed
Part, 13-steel measuring staff joint, 14-steel measuring staff, 15-PVC pillar, 16-monitors stake, 17-cement stabilized graded macabam, 18-concrete hollow
Brick, 19-soil moved in improve the original broadcasts sowing bank protection, 20-steel pile casting fixture, 21-steel reinforcement cage corrector, 22-Dense mesh screen, 23-closing cock, and 24-moves
State grouting behind shaft or drift lining hole, 25-Grouting Pipe, 26-drawknot end, 27-foot wall tension rib, 28-foot wall preformed hole, 29-prefabricated foot wall, 30-pad
Layer, 31-steel pile casting, 32-rubber stopper, 33-static breaking agent.
Detailed description of the invention
The pile piling technique requirement of cast-in-situ bored pile, powder-spray pile, welding procedure technology requirement, coagulation in present embodiment
Soil prefabricated section prefabricated construction technology requirement etc. repeats no more, and emphasis illustrates that the high-moisture ultra-soft soil that this utility model relates to is flexible
The embodiment that pile composite foundation is constructed with section combination ballastless track roadbed with stake raft.
Fig. 1 is that this utility model high-moisture ultra-soft soil flexible pile composite foundation combines non-fragment orbit road with stake raft with section
Based structures schematic diagram；Fig. 2 is cast-in-situ bored pile detail view；Fig. 3 is ring-shaped P VC pipe schematic diagram.
Non-fragment orbit road is combined with stake raft with section with reference to the high-moisture ultra-soft soil flexible pile composite foundation shown in Fig. 1-3
Based structures, roadbed is mainly by cast-in-situ bored pile 1, raft plate 7, powder-spray pile 6, soil cement plate 9, prefabricated foot wall 29, cement stabilized graded macabam
17 and soil moved in improve the original broadcast sowing bank protection 19 and form；Powder-spray pile 6 is located at the periphery of cast-in-situ bored pile 1 upper end, and raft plate 7 is arranged at cast-in-situ bored pile
On the bed course 30 at 1 top, raft plate 7 reinforcing bar is connected with cast-in-situ bored pile 1 top protruding bar；7 both sides are located at by soil cement plate 9, with
Raft plate 7 connects by connecting step 8；The drawknot end 26 that the foot wall tension rib 27 of prefabricated foot wall 29 is pre-buried with soil cement plate 9 connects
Connect；Roadbed cement stabilized graded macabam 17 both sides arrange soil moved in improve the original and broadcast sowing bank protection 19；It is cased with PVC isolated tube 4 outside the main muscle of cast-in-situ bored pile 3,
With rubber stopper 32 plug-hole bottom PVC isolated tube 4.
Cast-in-situ bored pile 1 top pre-buried ring-shaped P VC pipe 5, ring-shaped P VC pipe 5 is internal has poured into static breaking agent 33.Boring fills
It is provided with Dense mesh screen 22 outside note stake 1 steel reinforcement cage.
Raft plate 7 is embedded with the steel measuring staff fixture 12 for fixing steel measuring staff 14, and leaves dynamic grouting behind shaft or drift lining hole 24.Steel
Measuring staff 14 is threaded stagewise steel measuring staff, and it is outside equipped with PVC pillar 15.Dynamically it is provided with Grouting Pipe in grouting behind shaft or drift lining hole 24
25, Grouting Pipe 25 top closing cock 23 seals.
As shown in Figure 4, high-moisture ultra-soft soil flexible pile composite foundation is executed with section combination ballastless track roadbed with stake raft
Work step is as follows:
1) surveying and locating and earth excavation: site operation region is carried out setting-out according to design drawing, repaiies sidewalk and draining
Ditch 10, draining ditch depth 0.5m, wide 1.5m, and carry out the road excavation leveling work of early stage；
2) cement injection pile: bored pile construction region first carries out the pre-reinforcement of ground, powder with low-mix ash quantity powder-spray pile 6
Spray stake diameter 2m, powder-spray pile top pre-buried steel casing fixture 20, use 50cm long bolt；
3) bored pile construction: install steel pile casting 31, and by steel pile casting fixture 20 fixed position, hole subsequently,
Aperture 1.2m also carries out the construction of reinforcing bar, concrete；
4) raft plate construction: pouring one layer of bed course 30, thickness is 30cm, outside colligation raft plate 7 reinforcing bar is with cast-in-situ bored pile 1 top
Stretching bar connecting, pre-buried good steel measuring staff fixture 12 and PVC pillar 15, steel measuring staff fixture 12 uses 10cm aperture nut, PVC
The aperture of pillar 15 is 30cm, stays and sets dynamic grouting behind shaft or drift lining hole 24, aperture 30cm, and formwork erection pours raft plate 7, raft thickness of slab 80cm；
5) soil cement plate construction: joints cement soil plate 9, thick 80cm, connect by being connected step 8 with raft plate 7, step is divided into
Three rank, pre-buried drawknot end 26；
6) prefabricated foot wall is installed: installing both sides prefabricated foot wall 29, high 2m, foot wall tension rib 27 is pre-buried with soil cement plate to be drawn
Knot end 26 connects；
7) roadbed filling: roadbed filling divides the cement stabilized graded macabam 17 of three layers of different gradation, and is compacted, both sides are that soil moved in improve the original spreads
Broadcast bank protection 19, and build outward a layer concrete sky hollow brick 18, concrete hollow block thickness 25cm；
8) displacement skirt piles construction: roadbed both sides set displacement skirt piles 11, both sides, road surface set monitoring stake 16；Move skirt piles 11 He
The monitoring the highest 1.5m of stake 16, aperture 15cm, dynamic monitoring displacement sedimentation in construction.
Claims (5)
1. flexible pile combines ballastless track roadbed structure with stake raft with section, it is characterised in that: described roadbed is mainly filled by boring
Note stake (1), raft plate (7), powder-spray pile (6), soil cement plate (9), prefabricated foot wall (29), cement stabilized graded macabam (17) and soil moved in improve the original broadcast sowing
Bank protection (19) forms；Powder-spray pile (6) is located at the periphery of cast-in-situ bored pile (1) upper end, and raft plate (7) is arranged at cast-in-situ bored pile (1)
On the bed course (30) at top, raft plate (7) reinforcing bar is connected with cast-in-situ bored pile (1) top protruding bar；Raft is located at by soil cement plate (9)
Plate (7) both sides, connect by being connected step (8) with raft plate (7)；Foot wall tension rib (27) of prefabricated foot wall (29) and soil cement plate
(9) drawknot end (26) pre-buried in connects；Roadbed cement stabilized graded macabam (17) both sides arrange soil moved in improve the original and broadcast sowing bank protection (19)；Boring fills
PVC isolated tube (4), pre-buried ring-shaped P VC in cast-in-situ bored pile (1) top pipe (5) it is cased with outside the note main muscle of stake (3)；In raft plate (7) pre-buried
There is steel measuring staff fixture (12) for fixing steel measuring staff (14), and leave dynamic grouting behind shaft or drift lining hole (24).
Flexible pile the most according to claim 1 combines ballastless track roadbed structure with stake raft with section, it is characterised in that: bore
The main muscle of hole pouring pile (3) PVC isolated tube (4) bottom rubber stopper (32) plug-hole outward；The annular at cast-in-situ bored pile (1) top
Pvc pipe (5) is internal has poured into static breaking agent (33).
Flexible pile the most according to claim 1 combines ballastless track roadbed structure with stake raft with section, it is characterised in that: steel
Measuring staff (14) is threaded stagewise steel measuring staff, and it is outside equipped with PVC pillar (15).
Flexible pile the most according to claim 1 combines ballastless track roadbed structure with stake raft with section, it is characterised in that: dynamic
Being provided with Grouting Pipe (25) in state grouting behind shaft or drift lining hole (24), Grouting Pipe (25) top closing cock (23) seals.
Flexible pile the most according to claim 1 combines ballastless track roadbed structure with stake raft with section, it is characterised in that: bore
Dense mesh screen (22) it is provided with outside hole pouring pile (1) steel reinforcement cage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620554635.0U CN205874851U (en) | 2016-06-08 | 2016-06-08 | Ballastless track roadbed structure is made up with stake raft with section to flexible stake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620554635.0U CN205874851U (en) | 2016-06-08 | 2016-06-08 | Ballastless track roadbed structure is made up with stake raft with section to flexible stake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205874851U true CN205874851U (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620554635.0U Expired - Fee Related CN205874851U (en) | 2016-06-08 | 2016-06-08 | Ballastless track roadbed structure is made up with stake raft with section to flexible stake |
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| Country | Link |
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| CN (1) | CN205874851U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109914161A (en) * | 2019-04-11 | 2019-06-21 | 中铁第六勘察设计院集团有限公司 | A kind of construction method of soft clay area high-speed railway filled-up ground |
| CN114960305A (en) * | 2022-04-24 | 2022-08-30 | 南昌大学 | High-speed railway subgrade lower expansive soil foundation reinforcing structure and construction method |
-
2016
- 2016-06-08 CN CN201620554635.0U patent/CN205874851U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109914161A (en) * | 2019-04-11 | 2019-06-21 | 中铁第六勘察设计院集团有限公司 | A kind of construction method of soft clay area high-speed railway filled-up ground |
| CN114960305A (en) * | 2022-04-24 | 2022-08-30 | 南昌大学 | High-speed railway subgrade lower expansive soil foundation reinforcing structure and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20170608 |