CN109989312A - A kind of widen structure and its construction method suitable for Lin Ya highway - Google Patents
A kind of widen structure and its construction method suitable for Lin Ya highway Download PDFInfo
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- CN109989312A CN109989312A CN201910371450.4A CN201910371450A CN109989312A CN 109989312 A CN109989312 A CN 109989312A CN 201910371450 A CN201910371450 A CN 201910371450A CN 109989312 A CN109989312 A CN 109989312A
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- Prior art keywords
- concrete
- cliff
- bearing wall
- anchor
- massif
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
-
- 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
- E02D17/20—Securing of slopes or inclines
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
A kind of widen structure suitable for Lin Ya highway, including massif, massif includes old road and faces sky cliff positioned at old road side, cliff is formed on cliff, cliff inwardly excavates the step-like artificial cliff for forming massif, step-like artificial cliff is equipped with the different multiple anchor poles of height, and anchor pole inwardly anchors into massif along step-like artificial cliff；It is equipped with step concrete bearing wall on the outside of the step-like artificial cliff, concrete bearing is equipped with the anchor bar being connected with anchor pole within the walls；New road is spliced to form with old road at the top of the concrete bearing wall；Compared with prior art, the present invention tenses the massif after excavating by anchor pole, so that the massif after excavating has better stability, the normal pass for influencing old road is excavated not from top to bottom, step-like massif plays certain supporting role to way of concrete foundations, uses concrete for roadbed material, has better intensity, and influenced by natural calamity it is lower, convenient for the maintenance in later period.
Description
Technical field
The invention belongs to roads to widen technical field, more particularly, to a kind of widen structure suitable for Lin Ya highway and its
Construction method.
Background technique
In mountain highway, mountain highway it is numerous and it is easy influenced by unfavorable geology disaster, due to its need on the hillside
Locate excavated pavement, difficulty as one can imagine, and it is existing generally require to open up wider basal plane facing escarpment face, then spray compared with
Narrow lane face, it is also necessary to design side slope to enhance the stability of roadbed, for highway reconstruction and expansion engineering, Lin Ya construction need to be closed
Road can not accomplish that protecting smooth protect leads to.
China Patent No. CN105236872 provides a kind of light foam concrete material for the precipitous section roadbed filling in mountain area
Material and engineering method, material include the component of following parts by weight: 100~200 parts of cement, 5~35 parts of wollastonite powders, 5~55 parts of diatomite,
60~150 parts of water, 2~20 parts of water-reducing agents, 1~3 part of early strength agent, 5~20 parts of synthetic fibers, 5~10 parts of foaming agents, 2~15 parts
Foaming agent.The invention can be achieved the high intensity of light soil, fill the features such as self-compaction, settling amount are small, speed of application is fast, can incite somebody to action
Itself load of roadbed reduces to 1/3 or so of conventional roadbed, and the requirement to steep hill bearing capacity can also be greatly reduced, however should
Invention is only from material, under the premise of not considering whole widened structure and needing the smooth guarantor of guarantor logical.
When needing the cliff road surface to massif sound construction, massif base stabilization to carry out broadening operation, when using lightweight
Foamed concrete material satisfies the need after base segment is filled, since foamed concrete material hardness is lower, using one section when after
The influence for receiving wind and weather, is easy to produce the rupture of foam concrete, to influence the safety of roadbed, while foam concrete
It is not easy to later maintenance.
Summary of the invention
The present invention is to provide a kind of reduction excavation to overcome above-mentioned defect in the prior art, easy to operate, can applied
The widen structure and its construction method for the Lin Ya highway that working hour keeps unimpeded.
In order to reach the goals above, the technical scheme adopted by the invention is that: a kind of broadening knot suitable for Lin Ya highway
Structure, including massif, massif include old road and face sky cliff positioned at old road side, cliff are formed on cliff, cliff inwardly excavates
The step-like artificial cliff of massif is formed, step-like artificial cliff is equipped with the different multiple anchor poles of height, and anchor pole is along step-like people
Work cliff inwardly anchors into massif；Step concrete bearing wall, concrete bearing wall are equipped on the outside of the step-like artificial cliff
It is interior equipped with the anchor bar being connected with anchor pole；New road is spliced to form with old road at the top of the concrete bearing wall.
As a preferred solution of the present invention, the step-like artificial cliff surface is equipped with mask containing armored concrete,
Mask containing armored concrete is located between concrete bearing wall and step-like artificial cliff, and mask containing armored concrete, which is equipped with, to be connected
Device is connect, connector connects anchor bar and anchor pole, and anchor bar is arranged along anchor pole direction.
As a preferred solution of the present invention, the anchor bar passes through concrete bearing wall, and anchor bar extends to
Locate to be equipped with nut and concrete sealing off and covering anchorage outside concrete bearing wall, nut and concrete sealing off and covering anchorage are adapted with anchor bar.
As a preferred solution of the present invention, the concrete bearing wall is formed step-like from bottom to top, each step
Section is equipped with reinforced beam.
As a preferred solution of the present invention, drain hole is formed between the adjacent step of the concrete bearing wall.
As a preferred solution of the present invention, barricade alien invasion, concrete are equipped on the outside of the concrete bearing wall
Guardrail is equipped at the top of load bearing wall.
A kind of construction method of the widen structure suitable for Lin Ya highway, which comprises the following steps:
Step A: the cliff of old road side being excavated from top to bottom and forms step-like artificial cliff, and every lower 2 meters of digging sets 1
Anchor pole is arranged, and sprays mask containing armored concrete on excavating the step-like artificial cliff formed in time；
Step B: in rock bolt and then continue to excavate 2 meters downwards, then make a call to 1 row's anchor pole, injection contains reinforced concrete in time
Native mask；
Step C: until being excavated to slope foot position determined by designed elevation；
Step D: barricade alien invasion, and reinforcement placing net are established in classification from bottom to top, and hierarchical classification casting concrete is formed
Concrete bearing wall meets the position of anchor pole in time in anchor head installs connector, and setting-out lengthens the anchor bar of anchor pole outer end, mixes
Anchor pole within the scope of solidifying soil load bearing wall package template；
Step E: concrete carries out nut after health solidifies, to the anchor bar extended to outside mask containing armored concrete
Locking, and carry out concrete sealing off and covering anchorage；
Step F: new road will be connected to form with old road at the top of concrete bearing wall.
As a preferred solution of the present invention, the concrete bearing wall is formed step-like from top to bottom.
As a preferred solution of the present invention, each step of the concrete bearing wall is equipped with armored concrete
Each the bottom of the steps of beam, concrete bearing wall are formed with drain hole.
As a preferred solution of the present invention, the concrete bearing wall top outer is equipped with guardrail.
The beneficial effects of the present invention are: the present invention tenses the massif after excavating by anchor pole, so that the massif tool after excavating
There is better stability, excavates the normal pass for not influencing old road from top to bottom, step-like massif is convenient for operator in platform
Operation at rank, step-like artificial cliff play certain supporting role to concrete bearing wall, improve concrete bearing wall in platform
Stability on the artificial cliff of scalariform, uses concrete for roadbed material, has better intensity, and influenced by natural calamity
It is lower, convenient for the maintenance in later period.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the excavation structural schematic diagram of cliff；
Fig. 3 is the structural schematic diagram on cliff and old road；
Appended drawing reference in figure: old road 1, cliff 2, step-like artificial cliff 3, anchor pole 4, mask containing armored concrete 5, connection
Device 6, anchor bar 7, nut 8, beams of concrete 9, barricade alien invasion 10, guardrail 11, drain hole 12, new road 13, concrete bearing
Wall 14, cliff 15, massif 16.
Specific embodiment
It elaborates with reference to the accompanying drawing to the embodiment of the present invention.
As shown in Figure 1-3, a kind of widen structure suitable for Lin Ya highway, including massif 16, massif 16 include 1 He of old road
Face the cliff 2 of 15 lower section of sky cliff positioned at 1 side of old road, form cliff 2 on cliff 15, the excavation of cliff 2 forms step-like artificial
Cliff 3, step-like artificial cliff 3 are equipped with the different multiple anchor poles 4 of height, and anchor pole 4 is along step-like artificial cliff 3 to massif 16
Interior extension；Step-like 3 surface of artificial cliff is equipped with concrete bearing wall 14, is equipped in concrete bearing wall 14 and is connected with anchor pole 4
The anchor bar 7 connect；14 top of concrete bearing wall is spliced to form new road 13 with old road.
It can be open to traffic always on old road 1,2 top-down processing of cliff be formed into step-like artificial cliff 3, not to old road 1
It has an impact, while operator also carries out setting for anchor pole 4 at step, the setting of anchor pole 4 is so that cliff 2 is done after excavation
To timely reinforcing, it is ensured that stability of the old road 1 during being open to traffic, cliff 2 form step-like artificial cliff 3 after excavation,
The length of step and height are designed according to the actual situation, step-like artificial cliff 3 adds convenient for concrete bearing wall 14
Work and implementation.
Step-like 3 surface of artificial cliff is equipped with mask containing armored concrete 5, and mask containing armored concrete 5 is located at concrete
Between load bearing wall 14 and step-like artificial cliff 3, mask containing armored concrete 5 is steel mesh and gunite concrete, passes through steely
5 pairs of reinforced concrete mask are excavated the step-like artificial cliff 3 formed and reinforced, and mask containing armored concrete 5 is equipped with connection
Device 6, connector 6 connect anchor bar 7 and anchor pole 4, and anchor bar 7 is arranged along 4 direction of anchor pole, 7 quantity of anchor bar and anchor pole 4
Quantity is identical, and connector 6 is used to improve the stability between anchor pole 4 and anchor bar 7.
Anchor bar 7 passes through concrete bearing wall 14, and anchor bar 7, which extends to, to be located to be equipped with nut outside concrete bearing wall 14
8 and concrete sealing off and covering anchorage, nut 8 and concrete sealing off and covering anchorage are adapted with anchor bar 7, under the action of nut 8 and concrete sealing off and covering anchorage,
So that there is better stability, while on 14 outside of concrete bearing wall between anchor bar 7 and mask containing armored concrete 5
Equipped with barricade alien invasion 10, barricade alien invasion 10 is used to carry out plasticity to concrete bearing wall 14, is respectively provided with gear at each step
Wall alien invasion 10 is removed after the concrete has set by concreting between barricade alien invasion 10 and step-like artificial cliff 3
Barricade alien invasion 10.
Concrete bearing wall 14 formed from top to bottom it is step-like, each step section be equipped with reinforced beam 9, concrete
The step section of load bearing wall 14 is adapted with the step section of step-like artificial cliff 3, and reinforced beam 9 is for reinforcing each step
The intensity of section concrete load bearing wall 14.
Drain hole 12 is formed between the adjacent step of concrete bearing wall 14, drain hole 12 is connected to step-like artificial cliff
3, the drain hole 12 connecting with step-like artificial cliff 3 tilts upwards, and drain hole 12 is for being discharged in step-like artificial cliff 3
Moisture is equipped with guardrail 11 at the top of concrete bearing wall 14 so that concrete bearing wall 14 has better stability, and guardrail 11
The side of Yu Xinlu 13, for playing a protective role to by the vehicle on new road 13.
In the actual operation process, comprising the following steps:
Step-like artificial cliff 3 is formed firstly, the cliff 2 of 1 side of old road is excavated from top to bottom, every lower 2 meters of digging is set
1 row's anchor pole 4, and mask containing armored concrete 5, mask containing armored concrete 5 are sprayed on step-like artificial 3 surface of cliff in time
For injection steel mesh and gunite concrete；It is locked in anchor pole 4 and then continues to excavate 2 meters downwards, then make a call to 1 row's anchor pole 4, in time
Steel mesh and gunite concrete are sprayed, is successively gone, side is excavated, while being anchored with anchor pole 4, to the step for having set anchor pole 4
The artificial cliff 3 of shape carries out Spraying of reinforcement mat with concrete protection, until being excavated to slope foot position determined by designed elevation.
It is classified from bottom to top and establishes barricade alien invasion 10, and reinforcement placing net, hierarchical classification casting concrete, from bottom to top
Casting concrete pours outside step-like artificial cliff 3 after construction convenient for constructing to step-like artificial cliff 3
Concrete meets position installs connector 6 at anchor head, and the anchor bar 7 of setting-out lengthening 4 outer end of anchor pole in time of anchor pole 4, gear
Anchor bar 7 within the scope of the package of wall alien invasion 10, concrete forms concrete bearing wall 14 after health solidifies, to extension
Anchor bar 7 outside to concrete bearing wall 14 carries out nut 8 and locks, and carries out concrete sealing off and covering anchorage to anchor bar 7, according to this and
Row, the pull-type soil blocking component of anchor being composed of concrete bearing wall 14, connector 6 and anchor bar 7 are classified from bottom to top
Pouring molding, and it is classified the locking of nut 8, form firm supporting and retaining system component.
People is convenient for so that old road 1 is widened in the new road 13 that 14 top of concrete bearing wall is connected to form with old road 1
Member's passes through.
Concrete bearing wall 14 forms step-like, and each step upper top of concrete bearing wall 14 is equipped with reinforced concrete
Native beam 9, each the bottom of the steps of concrete bearing wall 14 are formed with drain hole 12, and 14 top outer of concrete bearing wall is equipped with shield
Column 11,11 reinforcing bar of guardrail protrude into concrete bearing wall 14, so that guardrail 11 has preferably surely on concrete bearing wall 14
It is qualitative, so that new road 13 has better security performance in use.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention；Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Although appended drawing reference in figure is used more herein: old road 1, cliff 2, step-like artificial cliff 3, anchor pole 4 contain
Armored concrete mask 5, connector 6, anchor bar 7, nut 8, beams of concrete 9, barricade alien invasion 10, guardrail 11, drain hole
12, new road 13, concrete bearing wall 14, cliff 15, the equal terms of massif 16, but it does not exclude the possibility of using other terms；
The use of these items is only for be more convenient to describe and explain essence of the invention；It is construed as any additional
Limitation be all to be disagreed with spirit of that invention.
Claims (10)
1. a kind of widen structure suitable for Lin Ya highway, including massif (16), massif (16) includes old road (1) and is located at old road
(1) side is faced sky cliff (15), cliff (2) is formed on cliff (15), which is characterized in that the cliff (2) inwardly excavates shape
At the step-like artificial cliff (3) of massif (16), step-like artificial cliff (3) is equipped with the different multiple anchor poles (4) of height, anchor pole
(4) massif (16) are inwardly anchored into along step-like artificial cliff (3)；It is mixed equipped with step on the outside of the step-like artificial cliff (3)
Solidifying soil load bearing wall (14), concrete bearing wall (14) is interior to be equipped with the anchor bar (7) being connected with anchor pole (4)；The concrete
New road (13) are spliced to form with old road at the top of load bearing wall (14).
2. a kind of widen structure suitable for Lin Ya highway according to claim 1, which is characterized in that the step-like people
Work cliff (3) surface is equipped with mask containing armored concrete (5), and mask containing armored concrete (5) is located at concrete bearing wall (14)
Between step-like artificial cliff (3), mask containing armored concrete (5) is equipped with connector (6), connector (6) connection anchoring
Reinforcing bar (7) and anchor pole (4), anchor bar (7) are arranged along anchor pole (4) direction.
3. a kind of widen structure suitable for Lin Ya highway according to claim 2, which is characterized in that the anchor bar
(7) concrete bearing wall (14) are passed through, anchor bar (7) extends to concrete bearing wall (14) and locates to be equipped with nut (8) outside and mix
Solidifying grave anchor, nut (8) and concrete sealing off and covering anchorage are adapted with anchor bar (7).
4. a kind of widen structure suitable for Lin Ya highway according to claim 3, which is characterized in that the concrete is held
Wall (14) are formed step-like from bottom to top again, and each step section is equipped with reinforced beam (9).
5. a kind of widen structure suitable for Lin Ya highway according to claim 4, which is characterized in that the concrete is held
Drain hole (12) are formed between the adjacent step of weight wall (14).
6. a kind of widen structure suitable for Lin Ya highway according to claim 5, which is characterized in that the concrete is held
Weight wall (14) outside is equipped with barricade alien invasion (10), is equipped with guardrail (11) at the top of concrete bearing wall (14).
7. a kind of construction method of the widen structure suitable for Lin Ya highway, which comprises the following steps:
Step A: the cliff (2) of old road (1) side is excavated to massif (3) from top to bottom and forms step-like artificial cliff (3), under every
2 meters are dug, 1 row's anchor pole (4) is set, and injection is protected containing armored concrete on excavating the step-like artificial cliff (3) formed in time
Face (5)；
Step B: it is locked in anchor pole (4) and then continues to excavate 2 meters downwards, then make a call to 1 row's anchor pole (4), injection is mixed containing reinforcing bar in time
Solidifying soil mask (5)；
Step C: until being excavated to slope foot position determined by designed elevation；
Step D: classification is established barricade alien invasion (10) from bottom to top, and reinforcement placing net, hierarchical classification casting concrete, is formed
Concrete bearing wall (14) meets the position of anchor pole (4) in time in anchor head installs connector (6), and setting-out lengthens anchor pole (4) outer end
Anchor bar (7), concrete bearing wall (14) wrap up template within the scope of anchor bar (7)；
Step E: concrete carries out nut after health solidifies, to the anchor bar (7) of concrete bearing wall (14) outside is extended to
(8) it locks, and carries out concrete sealing off and covering anchorage；
Step F: new road will be connected to form with old road (1) at the top of concrete bearing wall (14).
8. a kind of construction method of widen structure suitable for Lin Ya highway according to claim 7, which is characterized in that institute
State concrete bearing wall (14) formed from top to bottom it is step-like.
9. a kind of construction method of widen structure suitable for Lin Ya highway according to claim 7, which is characterized in that institute
The each step upper top for stating concrete bearing wall (14) is equipped with reinforced beam (9), each of concrete bearing wall (14)
The bottom of the steps are formed with drain hole (12).
10. a kind of construction method of widen structure suitable for Lin Ya highway according to claim 7, which is characterized in that
Concrete bearing wall (14) top outer is equipped with guardrail (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910371450.4A CN109989312A (en) | 2019-05-06 | 2019-05-06 | A kind of widen structure and its construction method suitable for Lin Ya highway |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910371450.4A CN109989312A (en) | 2019-05-06 | 2019-05-06 | A kind of widen structure and its construction method suitable for Lin Ya highway |
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| CN109989312A true CN109989312A (en) | 2019-07-09 |
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| CN201910371450.4A Pending CN109989312A (en) | 2019-05-06 | 2019-05-06 | A kind of widen structure and its construction method suitable for Lin Ya highway |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111235991A (en) * | 2020-03-09 | 2020-06-05 | 中铁二院工程集团有限责任公司 | Rock steep slope road structure and construction method |
| CN112921727A (en) * | 2021-01-28 | 2021-06-08 | 攀钢集团工程技术有限公司 | High and steep slope road widening construction method |
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| CN102864711A (en) * | 2012-01-19 | 2013-01-09 | 杜运兴 | Unbonded prestressed reinforced earth construction method and device thereof |
| CN102966119A (en) * | 2012-12-05 | 2013-03-13 | 青岛旭域土工材料股份有限公司 | Geogrid reinforced wall and construction method thereof |
| CN105780719A (en) * | 2016-03-24 | 2016-07-20 | 浙江大学城市学院 | Heightened construction method for active service stone building bank protecting wall |
| CN209941421U (en) * | 2019-05-06 | 2020-01-14 | 浙江交工集团股份有限公司 | Widen structure suitable for face cliff highway |
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2019
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102359046A (en) * | 2011-07-27 | 2012-02-22 | 河南省交通规划勘察设计院有限责任公司 | High fill subgrade connection method |
| CN102864711A (en) * | 2012-01-19 | 2013-01-09 | 杜运兴 | Unbonded prestressed reinforced earth construction method and device thereof |
| CN102966119A (en) * | 2012-12-05 | 2013-03-13 | 青岛旭域土工材料股份有限公司 | Geogrid reinforced wall and construction method thereof |
| CN105780719A (en) * | 2016-03-24 | 2016-07-20 | 浙江大学城市学院 | Heightened construction method for active service stone building bank protecting wall |
| CN209941421U (en) * | 2019-05-06 | 2020-01-14 | 浙江交工集团股份有限公司 | Widen structure suitable for face cliff highway |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111235991A (en) * | 2020-03-09 | 2020-06-05 | 中铁二院工程集团有限责任公司 | Rock steep slope road structure and construction method |
| CN112921727A (en) * | 2021-01-28 | 2021-06-08 | 攀钢集团工程技术有限公司 | High and steep slope road widening construction method |
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