CN110374134A - A kind of combined member increased suitable for retaining wall and construction method - Google Patents
A kind of combined member increased suitable for retaining wall and construction method Download PDFInfo
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- CN110374134A CN110374134A CN201910637323.4A CN201910637323A CN110374134A CN 110374134 A CN110374134 A CN 110374134A CN 201910637323 A CN201910637323 A CN 201910637323A CN 110374134 A CN110374134 A CN 110374134A
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- retaining wall
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- concrete
- embankment
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- 238000010276 construction Methods 0.000 title claims abstract description 28
- 230000001965 increasing effect Effects 0.000 title claims abstract description 25
- 239000004567 concrete Substances 0.000 claims abstract description 116
- 239000011381 foam concrete Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 38
- 239000010959 steel Substances 0.000 claims description 38
- 230000003014 reinforcing effect Effects 0.000 claims description 29
- 239000004568 cement Substances 0.000 claims description 16
- 239000002689 soil Substances 0.000 claims description 12
- 239000004744 fabric Substances 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims description 8
- 239000004576 sand Substances 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 5
- 239000011505 plaster Substances 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 4
- 238000009412 basement excavation Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims description 3
- 238000005345 coagulation Methods 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims 4
- 230000037431 insertion Effects 0.000 claims 4
- 238000005266 casting Methods 0.000 claims 2
- 238000005516 engineering process Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 10
- 238000012545 processing Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 238000007596 consolidation process Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000007569 slipcasting Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
- E02D29/0225—Retaining or protecting walls comprising retention means in the backfill
-
- 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
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
A kind of combined member increased suitable for retaining wall, including embankment and retaining wall, retaining wall are located at embankment side；It is excavated on embankment and forms step-like groove, be connected at the top of step-like groove and retaining wall；Concrete foundation is equipped at the top of retaining wall, concrete foundation is located in step-like groove, and concrete foundation is equipped with concrete slab；Bubble concrete layer is filled in the step-like groove, bubble concrete layer extends on concrete slab；Bubble concrete layer is wrapped with embankment fill material, and embankment fill material top is concordant at the top of concrete slab；Compared with prior art, mini pile, foam concrete and retaining wall are increased technology to combine, become an organic whole, improve the height and degree of stability of retaining wall, existent retaining wall can be met and increase requirement, mini pile technology is used simultaneously, so that vibration and noise are smaller when construction, and very little is influenced on the disturbance of the structure of retaining wall and ground.
Description
Technical field
The invention belongs to retaining walls to increase technical field, more particularly, to a kind of combined member increased suitable for retaining wall
And construction method.
Background technique
Currently, build in room, highway, railway, mine, in the engineering constructions such as water conservancy, to prevent Roadbed Soil or the hillside soil body
The wall structure for bearing soil body lateral pressure collapsed and built, is referred to as retaining wall.Rationally setting retaining wall can effectively reduce
The slope range of embankment or cut slope, greatly reduces earth and rock works quantity, corresponding to reduce the policies such as earth clearance processing hardly possible
Degree, has a very important role in engineer application.Retaining wall is also different according to its classification of different type, wherein cantilever
For formula retaining wall and gravity retaining wall are with respect to other types retaining wall, application range is relatively most wide.
As people's economy and urbanization are constantly fast-developing, the people are also more next to requirements such as quality of life and space enrironments
It is higher.For example, for architectural engineering newly-built or being transformed and highway engineering etc., due to Develop by stages, place or road general icon
Height constantly increases, and original wall height is caused to be continuously increased, and causes original retaining wall no longer applicable, the safety of former retaining wall and
Stability is unable to satisfy status requirement, and the lives and properties of the country and people are brought with certain risk.Traditional solutions are logical
Often original retaining wall is removed and is rebuild, but the project amount of this method is big, long in time limit, cost is high, while original side in demolishing process
Unstability easily occurs for slope to bring certain danger.And the relevant technologies are used, it is carried out under the premise of not removing former retaining wall
Retaining wall is increased, and on the one hand can save cost, shorten the construction period；On the other hand, it can guarantee that the safety of original retaining wall continues to make
With bring security risk in reduction demolishing process.In general, accordingly increased for existent retaining wall, technology is difficult
Spend it is relatively large, existent retaining wall reinforce it is not in place easily there are various diseases and brings some potential safety problems, thus to the people
Lives and properties bring danger.Therefore, find it is a kind of can not only guarantee that former side slope of embankment was stablized, but also have that speed of application is fast, construction
High-quality, the advantages that cost is relatively low existent retaining wall, which increases composite structure, seems particularly necessary.
The Chinese patent of 106120501 A of Publication No. CN propose a kind of existing barricade section spell width increase structure and
Construction method, former side slope of embankment is excavated first to be formed it is step-like, then on the outside of original barricade be arranged cast-in-situ bored pile and
Column, while pouring on barricade and column Bars In Poured Concrete Slab and L-type prefabricated board is set on the outside, finally using cellular concrete into
Row order scalariform is returned and is built.The structure use cellular concrete return build technology, it is fast with speed of application, construction quality is good, mitigate
The features such as embankment is self-possessed can be effectively applied to existing barricade section roadbed and spell wide processing.But the structure is not suitable for due to place
Or road total figure absolute altitude constantly increases, and causes the ever-increasing operating condition of original retaining wall height.
The Chinese patent of Publication No. CN 107447778A proposes a kind of increasing for in-service reinforced concrete retaining wall
Ruggedized construction and method, reinforcing of banketing is carried on the back in report preparation of construction, in-service reinforced concrete retaining wall wall, foundation trench excavates, construction
It laterally depressurizes off-load plate, bar planting construction, construction reinforcement vertical plate and helps plate, reinforces vertical plate wall back seven steps of backfill.The structure
And on the one hand method ensure that the safety and stability of original side slope, on the other hand it effectively save duration and can reduce engineering
Cost preferably can carry out heightening and consolidation processing to in-service reinforced concrete retaining wall.However, this method is only mixed to in-service reinforcing bar
Solidifying soil retaining wall carries out heightening and consolidation processing, is not directed to as common gravity retaining wall or counterfort wall；Meanwhile
This method bankets to retaining walls back using high-pressure slip-casting or mini pile mode and carries out consolidation process, and wall is carried on the back in Practical Project
Filler is often dank material, and high-pressure slip-casting is also easy to produce spillage and increases project cost.
In consideration of it, causing original wall height to be continuously increased for due to constantly increasing in place or road total figure absolute altitude
Problem needs to invent a kind of existent retaining wall that a kind of speed of application is fast, construction quality is good, stability is good at present and increases combination
Structure and construction method, with important engineering significance and practical value.
Summary of the invention
The present invention is to provide one kind securely and reliably to overcome above-mentioned defect in the prior art, and structure is simple, and construction is just
Prompt is suitable for the combined member and construction method that retaining wall is increased.
In order to reach the goals above, the technical scheme adopted by the invention is that: a kind of retaining wall increases composite structure, including
Embankment and retaining wall, retaining wall are located at embankment side；It is excavated on embankment and forms step-like groove, step-like groove and earth-retaining wall top
Portion is connected；Concrete foundation is equipped at the top of retaining wall, concrete foundation is located in step-like groove, and concrete foundation is equipped with
Concrete slab；Bubble concrete layer is filled in the step-like groove, bubble concrete layer extends on concrete slab；
Bubble concrete layer is wrapped with embankment fill material, and embankment fill material top is concordant at the top of concrete slab.
As a preferred solution of the present invention, the bubble concrete layer includes the first bubble concrete layer and the second bubble
Foam concrete layer, the first bubble concrete layer are located in step-like groove, and the first bubble concrete layer top and coagulation soil matrix
Plinth bottom surface is concordant, and the second bubble concrete layer is located above the first bubble concrete layer.
As a preferred solution of the present invention, second bubble concrete layer is filled out along the short transverse of concrete slab
It fills, lower section at the top of concrete slab is located at the top of the second bubble concrete layer, and the second bubble concrete layer is formed with cement bonded sand
Slurry plastering.
As a preferred solution of the present invention, first bubble concrete layer and the second bubble concrete layer are platform
Scalariform step, and steel fabric sheet is successively equipped in the first bubble concrete layer and the second bubble concrete layer.
As a preferred solution of the present invention, the concrete foundation bottom is equipped with the multiple mini piles extended downwardly,
Multiple mini piles pass through retaining wall and are connected with embankment.
As a preferred solution of the present invention, the mini pile includes steel sleeve and anchor pole reinforcing bar, and steel sleeve is hollow
Structure, anchor pole reinforcing bar are located in steel sleeve, and anchor bar steel top rib portion extends to outside steel sleeve.
As a preferred solution of the present invention, injecting cement paste is equipped in the steel sleeve, injecting cement paste package is set to anchor pole
Outside reinforcing bar, bending structure is formed between the anchor pole reinforcing bar extended to outside steel sleeve and the anchor pole reinforcing bar in steel sleeve.
A kind of retaining wall increases the construction method of composite structure, comprising the following steps:
Step A: it is banketed and compactness, bearing capacity and is relatively surveyed according to the foundation of retaining wall, structure type, wall back
Report etc. obtains relevant parameter and carries out the relevant preparation of construction in place simultaneously；
Step B: the downward step excavation shape groove in top in embankment Yu retaining wall junction is excavated to designed elevation position
It sets；
Step C: the bore position of mini pile is determined in step-like groove, is drilled by projected depth, and to miniature
Stake drilling carries out borehole cleaning operation, arrangement spacing≤100cm × 300cm between adjacent mini pile, and more mini piles are in rectangular cloth
It sets；
Step D: it is inserted into mini pile bore position with perforated steel sleeve；
Step E: it is inserted into the anchor pole reinforcing bar processed according to design requirement in steel sleeve, and carries out slip casting in device to hole, directly
Until injecting cement paste meets design requirement；
Step F: carrying out pouring for the first bubble concrete layer in step-like groove, the first bubble concrete layer pour to
Concrete foundation bottom surface carries out in the layer-by-layer casting process of the first bubble concrete layer being successively laid with steel fabric sheet；
Step G: after the first bubble concrete layer intensity reaches design requirement, concrete foundation and concrete surface are carried out
The structure construction of plate；
Step H: after concrete foundation and concrete slab intensity reach design requirement, the second bubble concrete layer is carried out
It pours to designed elevation, carries out successively being laid with steel fabric sheet in the layer-by-layer casting process of the second bubble concrete layer；
Step I: it is handled at the top of the second bubble concrete layer using cement sand plaster；
Step J: embankment fill material is backfilled at the top of cement sand plaster and is successively compacted.
As a preferred solution of the present invention, the size of the mini pile bottom insertion embankment in the step C is not less than
300cm。
As a preferred solution of the present invention, the anchor pole reinforcing bar in the step E is embedded in the size of concrete foundation not
Less than 10cm, anchor bar steel top rib portion bends and connect with the reinforcing bar in concrete foundation.
The invention has the advantages that compared with prior art:
1, mini pile, foam concrete and existent retaining wall are increased technology and combined by the present invention, become one
A organic whole improves the height and degree of stability of existent retaining wall, can meet existent retaining wall and increase requirement.
2, the present invention use mini pile technology, on the one hand make construction when vibration and noise it is smaller, because mini pile size compared with
It is small, very little is influenced on the disturbance of the structure of retaining wall and ground；On the other hand, convenient, speed is fast with constructing for mini pile,
The features such as period is short, low cost, in addition mini pile can a degree of enhancing side slope of embankment overall stability, and avoid embankment
In side slope the shortcomings that mini pile easy spillage.
3, the present invention uses foam concrete, and foam concrete has that light weight, intensity are high, speed of application is fast, construction matter
The features such as reliable is measured, the soil lateral pressure of existent retaining wall is on the one hand alleviated using the technology, the anti-of retaining wall is increased and inclines
The property covered and stability；On the other hand, which improve existent retaining wall walls to carry on the back stress performance, enhances the monolithic stability of retaining wall
Property.
4, compared with tradition removes the processing mode rebuild, the invention avoids remove time-consuming caused by reconstruction model take
The danger of unstability easily occurs for money and demolishing process Central Plains side slope of embankment, and the present invention has saved the duration to a certain extent and reduced
Project cost.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the connection schematic diagram of mini pile and concrete foundation；
Fig. 3 is the cross-sectional view of mini pile；
Appended drawing reference in figure: retaining wall 1, embankment 2, step-like groove 3, mini pile 4, bubble concrete layer 5, the first foam
Concrete layer 5-1, the second bubble concrete layer 5-2, steel fabric sheet 6, concrete foundation 7, concrete slab 8, cement mortar is smeared
Face 9, embankment fill material 10, mini pile drilling 11, steel sleeve 12, anchor pole reinforcing bar 13, injecting cement paste 14.
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 combined member increased suitable for retaining wall, including embankment 2 and retaining wall 1, retaining wall 1
Positioned at 2 side of embankment；It is excavated on embankment 2 and forms step-like groove 3, be connected at the top of step-like groove 3 and retaining wall 1；Retaining wall 1
Top is equipped with concrete foundation 7, and concrete foundation 7 is located in step-like groove 3, and concrete foundation 7 is equipped with concrete surface
Plate 8；It is filled with bubble concrete layer 5 in step-like groove 3, bubble concrete layer 5 extends on concrete slab 8；Foam is mixed
Solidifying soil layer 5 is wrapped with 2 filler of embankment, and 2 filler of embankment top is concordant with 8 top of concrete slab.
Retaining wall 1 is cantilevered, buttress type or gravity retaining wall, and 1 bottom of retaining wall is embedded in embankment 2, coagulation soil matrix
Plinth 7 is horizontally disposed, and 7 upper surface of concrete foundation and concordant, 7 side of concrete foundation and 1 phase of retaining wall at the top of retaining wall 1
It supports.
3 side of step-like groove being connected with retaining wall 1 is vertical structure, step-like relative to being connected with retaining wall 1
The other side of groove 3 is step-like step, and size gradually becomes smaller step-like groove 3 vertically downwards, in step-like groove 3
For filling the first bubble concrete layer 5-1, so that the first bubble concrete layer 5-1 at step-like place offsets with embankment 1,
Improve the stability of the first bubble concrete layer 5-1.
Bubble concrete layer 5 includes the first bubble concrete layer 5-1 and the second bubble concrete layer 5-2, and the first foam is mixed
Solidifying soil layer 5-1 is located in step-like groove 3, and concordant with 7 bottom surface of concrete foundation at the top of the first bubble concrete layer 5-1, the
Two bubble concrete layer 5-2 are located above the first bubble concrete layer 5-1.
The filling size of first bubble concrete layer 5-1 is adapted with the size of step-like groove 3, the second foam concrete
Layer 5-2 is filled on the first bubble concrete layer 5-1, and the second bubble concrete layer 5-2 is also step-like structure.
Second bubble concrete layer 5-2 is filled along the short transverse of concrete slab 8, the top the second bubble concrete layer 5-2
Portion is located at 8 top lower section of concrete slab, and cement sand plaster 9 is formed at the top of the second bubble concrete layer 5-2, the first bubble
Foam concrete layer 5-1 and the second bubble concrete layer 5-2 is step-like step, and the first bubble concrete layer 5-1 and second
Steel fabric sheet 6 is successively equipped in bubble concrete layer 5-2.
7 bottom of concrete foundation is equipped with the multiple mini piles 4 extended downwardly, and the quantity of multiple mini piles 4 is according to practical feelings
Condition is designed, and multiple mini piles 4 are vertically arranged, and multiple mini piles 4 pass through 1 bottom base of retaining wall and are connected with embankment 2, more
It is embedded in concrete foundation 7 at the top of a mini pile 4, multiple mini piles 4 are located in same level height.
Mini pile 4 includes steel sleeve 12 and anchor pole reinforcing bar 13, and steel sleeve 12 is hollow structure, and anchor pole reinforcing bar 13 is located at steel bushing
It in pipe 12, and extends to outside steel sleeve 12, is embedded at the top of steel sleeve 12 in concrete foundation 7, steel bushing at the top of anchor pole reinforcing bar 13
Injecting cement paste 14 is equipped in pipe 12, the package of injecting cement paste 14 is set to outside anchor pole reinforcing bar 13, under the action of injecting cement paste 14, so that anchor pole
More than 13 steel sleeve 12 of reinforcing bar is fixedly connected, and extends to the anchor pole reinforcing bar 13 outside steel sleeve 12 and the anchor bar steel in steel sleeve 12
Bending structure is formed between muscle 13, the anchor pole reinforcing bar 13 extended to outside steel sleeve 12 is connected with the reinforcing bar in concrete foundation 7, mentions
Stability between high mini pile 4 and concrete foundation 7.
In actual production use process, comprising the following steps:
Step A: it is banketed compactness, bearing capacity and relatively according to the foundation of retaining wall 1, structure type, wall back
Report etc. is surveyed, relevant parameter is obtained and carries out the relevant preparation of construction in place simultaneously.
Step B: the downward step excavation shape groove 3 in top in embankment 2 Yu 1 junction of retaining wall, step-like 3 side of groove
It is connected with retaining wall 1, the opposite other side being connected with retaining wall 1 of step-like groove 3 forms step-like, and step-like groove 3
It extends downwardly size to be gradually reduced, is excavated to designed elevation position.
Step C: determining the bore position of mini pile 4 at step-like groove 3, and mini pile drilling 11 is carried out on embankment 1
Bore operation, close to retaining wall 1, mini pile drilling 11 drills by projected depth, and bores to mini pile for mini pile drilling 11
Hole 11 carries out borehole cleaning operation, arrangement spacing≤100cm × 300cm between adjacent mini pile 4, and more mini piles 4 are in rectangular cloth
It sets, the size that 4 bottom of mini pile is embedded in embankment 2 is not less than 300cm.
Step D: the insertion of 11 positions is drilled with perforated steel sleeve 12, the size and mini pile of steel sleeve 12 in mini pile
Drilling 11 is adapted.
Step E: it is inserted into the anchor pole reinforcing bar 13 processed according to design requirement in steel sleeve 12, and is infused in device to hole
Slurry, until injecting cement paste 14 meets design requirement, anchor pole reinforcing bar 13 and the fixed company of steel sleeve 12 under the action of injecting cement paste 14
It connects, and bending process is carried out to the anchor pole reinforcing bar 13 extended to outside 12 top of steel sleeve, anchor pole reinforcing bar 13 is embedded in concrete foundation 7
Size be not less than 10cm, bend at the top of anchor pole reinforcing bar 13 and connect with the reinforcing bar in concrete foundation 7.
Step F: pouring for the first bubble concrete layer 5-1, the first bubble concrete layer 5- are carried out in step-like groove 3
1 pours to 7 bottom surface of concrete foundation, carries out successively being laid with steel fabric sheet in the first layer-by-layer casting process of bubble concrete layer 5-1
6。
Step G: after the first bubble concrete layer 5-1 intensity reaches design requirement, concrete foundation 7 and coagulation are carried out
The structure construction of native panel 8, reinforcing bar is connected with the anchor pole reinforcing bar 13 extended to outside 12 top of steel sleeve in concrete foundation 7, together
When 1 top of 7 upper surface of concrete foundation and retaining wall it is concordant, 7 side of concrete foundation also offsets with retaining wall 1, concrete surface
8 bottom of plate is poured in concrete foundation 7, so that concrete foundation 7 is fixedly connected with concrete slab 8, and concrete slab 8
It is vertically arranged.
Step H: after concrete foundation 7 and concrete slab Final 8 degree reach design requirement, the second foam concrete is carried out
Layer 5-2 is poured to designed elevation, carries out successively being laid with steel fabric sheet 6 in the second layer-by-layer casting process of bubble concrete layer 5-2.
Step I: it is handled at the top of the second bubble concrete layer 5-2 using cement sand plaster 9.
Step J: 2 filler of embankment is backfilled at the top of cement sand plaster 9 and is successively compacted.
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: retaining wall 1, embankment 2, step-like groove 3, mini pile 4, bubble
Foam concrete layer 5, the first bubble concrete layer 5-1, the second bubble concrete layer 5-2, steel fabric sheet 6, concrete foundation 7 are mixed
Solidifying soil panel 8, cement sand plaster 9, embankment fill material 10, mini pile drilling 11, steel sleeve 12, anchor pole reinforcing bar 13, injecting cement paste 14
Equal terms, but it does not exclude the possibility of using other terms；The use of these items is only for more easily describe to conciliate
Release essence of the invention；Being construed as any additional limitation is disagreed with spirit of that invention.
Claims (10)
1. a kind of combined member increased suitable for retaining wall, including embankment (2) and retaining wall (1), retaining wall (1) are located at embankment
(2) side；It is formed step-like groove (3) it is characterized in that, being excavated on the embankment (2), step-like groove (3) and retaining wall
(1) top is connected；Concrete foundation (7) are equipped at the top of the retaining wall (1), concrete foundation (7) is located at step-like groove (3)
It is interior, and concrete foundation (7) is equipped with concrete slab (8)；Bubble concrete layer is filled in the step-like groove (3)
(5), bubble concrete layer (5) extends on concrete slab (8)；The bubble concrete layer (5) is wrapped with embankment (2) and fills out
Material, embankment (2) filler top are concordant at the top of concrete slab (8).
2. a kind of combined member increased suitable for retaining wall according to claim 1, which is characterized in that the foam is mixed
Solidifying soil layer (5) include the first bubble concrete layer (5-1) and the second bubble concrete layer (5-2), the first bubble concrete layer (5-
1) it is located in step-like groove (3), and concordant with concrete foundation (7) bottom surface at the top of the first bubble concrete layer (5-1), second
Bubble concrete layer (5-2) is located above the first bubble concrete layer (5-1).
3. a kind of combined member increased suitable for retaining wall according to claim 2, which is characterized in that second bubble
Foam concrete layer (5-2) is filled along the short transverse of concrete slab (8), is located at the top of the second bubble concrete layer (5-2) mixed
Lower section at the top of solidifying soil panel (8), and the second bubble concrete layer (5-2) is formed with cement sand plaster (9).
4. a kind of combined member increased suitable for retaining wall according to claim 2, which is characterized in that first bubble
Foam concrete layer (5-1) and the second bubble concrete layer (5-2) are step-like step, and the first bubble concrete layer (5-1)
With steel fabric sheet (6) are successively equipped in the second bubble concrete layer (5-2).
5. a kind of combined member increased suitable for retaining wall according to claim 1, which is characterized in that the concrete
Basic (7) bottom is equipped with the multiple mini piles (4) extended downwardly, and multiple mini piles (4) pass through retaining wall (1) and embankment (2) phase
Even.
6. a kind of combined member increased suitable for retaining wall according to claim 5, which is characterized in that the mini pile
It (4) include steel sleeve (12) and anchor pole reinforcing bar (13), steel sleeve (12) is hollow structure, and anchor pole reinforcing bar (13) is located at steel sleeve
(12) in, and steel sleeve (12) is extended to outside at the top of anchor pole reinforcing bar (13).
7. a kind of combined member increased suitable for retaining wall according to claim 6, which is characterized in that the steel sleeve
(12) injecting cement paste (14) are equipped in, injecting cement paste (14) package is set to anchor pole reinforcing bar (13) outside, extends to steel sleeve (12) outside
Bending structure is formed between anchor pole reinforcing bar (13) and the anchor pole reinforcing bar (13) being located in steel sleeve (12).
8. a kind of construction method for the combined member increased suitable for retaining wall, which comprises the following steps:
Step A: it is banketed and compactness, bearing capacity and is relatively surveyed according to the foundation of retaining wall (1), structure type, wall back
Report etc. obtains relevant parameter and carries out the relevant preparation of construction in place simultaneously；
Step B: the downward step excavation shape groove (3) in top in embankment (2) and retaining wall (1) junction is excavated to design mark
High position；
Step C: the bore position of mini pile (4) is determined at step-like groove (3), is drilled by projected depth, and to micro-
Type stake drilling (11) carries out borehole cleaning operation, arrangement spacing≤100cm × 300cm between adjacent mini pile (4), more mini piles
(4) in rectangular layout；
Step D: in mini pile drilling (11) position insertion with perforated steel sleeve (12)；
Step E: the anchor pole reinforcing bar (13) that insertion is processed according to design requirement in steel sleeve (12), and infused in device to hole
Slurry, until injecting cement paste (14) meets design requirement；
Step F: pouring for the first bubble concrete layer (5-1), the first bubble concrete layer are carried out in step-like groove (3)
(5-1) is poured to concrete foundation (7) bottom surface, and the first bubble concrete layer (5-1) is successively successively laid in casting process
Steel fabric sheet (6)；
Step G: after the first bubble concrete layer (5-1) intensity reaches design requirement, concrete foundation (7) and coagulation are carried out
The structure construction of native panel (8)；
Step H: after concrete foundation (7) and concrete slab (8) intensity reach design requirement, the second foam concrete is carried out
Layer (5-2) is poured to designed elevation, carries out successively being laid with steel fabric sheet in the layer-by-layer casting process of the second bubble concrete layer (5-2)
(6)；
Step I: it is handled at the top of the second bubble concrete layer (5-2) using cement sand plaster (9)；
Step J: embankment (2) filler is backfilled at the top of cement sand plaster (9) and is successively compacted.
9. a kind of construction method of combined member increased suitable for retaining wall according to claim 8, which is characterized in that
The size of mini pile (4) bottom insertion embankment (2) in the step C is not less than 300cm.
10. a kind of construction method of combined member increased suitable for retaining wall according to claim 8, feature exist
In the size of anchor pole reinforcing bar (13) insertion concrete foundation (7) in the step E is not less than 10cm, anchor pole reinforcing bar (13) top
Portion bends and connect with the reinforcing bar in concrete foundation (7).
Priority Applications (1)
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| CN111411637A (en) * | 2020-04-30 | 2020-07-14 | 浙江大学城市学院 | High and steep terrain foam concrete light embankment structure and construction method |
| CN111441789A (en) * | 2020-04-30 | 2020-07-24 | 浙江大学城市学院 | High-steep-terrain bridge-tunnel connection foam concrete filling-first and digging-second transition structure and construction method |
| CN111719571A (en) * | 2020-07-08 | 2020-09-29 | 广州市恒盛建设工程有限公司 | Construction method for foam concrete reinforcement of confined space high-fill roadbed side slope |
| CN115126282A (en) * | 2022-07-25 | 2022-09-30 | 中国十九冶集团有限公司 | Post-reinforcement method for permanent support of adjacent important building structures |
| CN115198790A (en) * | 2022-08-11 | 2022-10-18 | 广东省建筑设计研究院有限公司 | Reinforcing and supporting method for existing embankment upright retaining wall |
| CN116446435A (en) * | 2023-06-19 | 2023-07-18 | 中国土木工程集团有限公司 | Novel revetment pile foundation structure under complicated geological conditions |
| WO2023213117A1 (en) * | 2022-05-05 | 2023-11-09 | 中交路桥建设有限公司 | Widening structure and construction method for existing subgrade embankment wall section near river |
| CN117449347A (en) * | 2023-12-18 | 2024-01-26 | 山东建勘集团有限公司 | High-filling existing arm-supporting type retaining wall connection reinforcing structure and construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111411637A (en) * | 2020-04-30 | 2020-07-14 | 浙江大学城市学院 | High and steep terrain foam concrete light embankment structure and construction method |
| CN111441789A (en) * | 2020-04-30 | 2020-07-24 | 浙江大学城市学院 | High-steep-terrain bridge-tunnel connection foam concrete filling-first and digging-second transition structure and construction method |
| CN111719571A (en) * | 2020-07-08 | 2020-09-29 | 广州市恒盛建设工程有限公司 | Construction method for foam concrete reinforcement of confined space high-fill roadbed side slope |
| WO2023213117A1 (en) * | 2022-05-05 | 2023-11-09 | 中交路桥建设有限公司 | Widening structure and construction method for existing subgrade embankment wall section near river |
| CN115126282A (en) * | 2022-07-25 | 2022-09-30 | 中国十九冶集团有限公司 | Post-reinforcement method for permanent support of adjacent important building structures |
| CN115198790A (en) * | 2022-08-11 | 2022-10-18 | 广东省建筑设计研究院有限公司 | Reinforcing and supporting method for existing embankment upright retaining wall |
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| CN116446435A (en) * | 2023-06-19 | 2023-07-18 | 中国土木工程集团有限公司 | Novel revetment pile foundation structure under complicated geological conditions |
| CN116446435B (en) * | 2023-06-19 | 2023-09-29 | 中国土木工程集团有限公司 | Novel revetment pile foundation structure under complicated geological conditions |
| CN117449347A (en) * | 2023-12-18 | 2024-01-26 | 山东建勘集团有限公司 | High-filling existing arm-supporting type retaining wall connection reinforcing structure and construction method |
| CN117449347B (en) * | 2023-12-18 | 2024-03-22 | 山东建勘集团有限公司 | High-filling existing buttress type retaining wall connection reinforcing structure and construction method |
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