CN107366302A - A kind of construction technology of reinforced concrete retaining wall - Google Patents
A kind of construction technology of reinforced concrete retaining wall Download PDFInfo
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- CN107366302A CN107366302A CN201710530242.5A CN201710530242A CN107366302A CN 107366302 A CN107366302 A CN 107366302A CN 201710530242 A CN201710530242 A CN 201710530242A CN 107366302 A CN107366302 A CN 107366302A
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- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- 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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/08—Restraining of underground water by employing open ditches arranged below the level of the water
-
- 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
- E02D29/0258—Retaining or protecting walls characterised by constructional features
- E02D29/0275—Retaining or protecting walls characterised by constructional features cast in situ
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- Civil Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Ceramic Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Retaining Walls (AREA)
Abstract
A kind of construction technology of reinforced concrete retaining wall, comprises the following steps：S1, along tall earth fill bottom of slope edge foundation trench is excavated out, and gutter and catch pit are set；S2, treat that bottom land without ponding, lays blotter, and be rammed into foundation soil to bottom land；S3, the prefabricated foundation reinforcing bar in foundation trench, and formwork erection pours base concrete；S4, after base concrete reaches some strength, vertical wall body reinforcing bar is installed in base concrete；S5, cast-in-place wall body and base concrete faying face, the concrete of the loose portions at faying face and laitance are cut, and cleaned up with water；S6, erect wall body template, the cast-in-place wall body concrete into template, treat that the intensity of wall body concrete reaches a timing, swell fixture is squeezed into wall body towards the one side of tall earth fill, foundation pile is squeezed into tall earth fill afterwards, swell fixture and foundation pile are tensed into connection with reinforcing bar rope.This kind of technique is built into retaining wall, and not only intensity is high, and efficiency of construction is also higher.
Description
Technical field
The present invention relates to construction field, more particularly to a kind of construction technology of reinforced concrete retaining wall.
Background technology
During construction, often because landform reason forms tall earth fill, especially enter in mountain area
Row construction, then it is particularly evident.And the soil block and rubble on tall earth fill are possible to tumble down from side slope, and then just
It is possible to influence being normally carried out for construction working.
And in the prior art, workmen often first erects one of earth-retaining before construction at tall earth fill
Wall, and stop with this downslide of soil block and rubble.Meanwhile when the difference in height for running into embankment side slope is excessive, in order to
Ensureing retaining wall has enough abilities to balance the thrust of embankment side slope, and prior art would generally be built using armored concrete
Retaining wall, or even retaining wall internal force can be improved using increase reinforced concrete retaining wall thickness, but so need significantly
Increase construction costs；Another method is encryption counterfort intercolumniation, but the existing embankment side slope discrepancy in elevation is all very big, with depth
Increase, soil pressure increase, the construction method of encryption counterfort intercolumniation are difficult to effectively lower construction costs.
The content of the invention
It is an object of the invention to provide a kind of construction technology of reinforced concrete retaining wall, it is not only easy for construction, and
Also the intensity of reinforced concrete retaining wall is effectively enhanced.
The present invention above-mentioned purpose technical scheme is that：A kind of reinforced concrete retaining wall is applied
Work technique, comprises the following steps：
S1, a foundation trench is excavated out along tall earth fill bottom of slope edge, and gutter and catch pit are set at the edge of foundation trench, entered
Row draining；
S2, when foundation trench bottom is without ponding, lay blotter to the bottom of foundation trench, and be rammed into foundation soil with ramming machine；
S3, the prefabricated foundation reinforcing bar in foundation trench, and formwork erection pours base concrete into foundation trench；
S4, after the intensity of base concrete is put into 2.4Mpa~2.6Mpa, vertical wall body steel is installed in base concrete
Muscle；
S5, cast-in-place wall body and base concrete faying face, the concrete of the loose portions at faying face and laitance are cut, and
Cleaned up with water；
S6, erect wall body template, the cast-in-place wall body concrete into template, treat wall body concrete intensity reach 2.7Mpa~
During 2.9Mpa, swell fixture is squeezed into wall body towards the one side of tall earth fill, foundation pile is squeezed into tall earth fill afterwards, uses
Swell fixture and foundation pile are tensed connection by reinforcing bar rope.
By using above-mentioned technical proposal, gutter and catch pit are set during foundation trench excavates, so can and
When discharge ponding in foundation trench, be so to advantageously ensure that so as to ensure that working face is dry and substrate is not flooded
Efficiency of construction, be advantageous to improve the intensity on basis again.Meanwhile foundation trench bottom lay blotter, can so reduce from
Erosion degree of the water that underground is oozed out to basis.In addition, the prefabricated foundation reinforcing bar in foundation trench, can so improve basis after pouring
Intensity.Also, before walling body is poured, first the faying face of wall body and base concrete is poured, so can be wall body
Pour and set support level, it is stable so as to improve wall body.And the processing before being constructed to faying face, it can so carry
In high-wall body casting process, concrete is spilt between template and faying face, and then reduces the waste of concrete.It is moreover, sharp
Reinforced concrete retaining wall and tall earth fill are fixed together with reinforcing bar rope, reinforced concrete retaining wall can so be risen
To tightening force, so as to be advantageous to improve compression strength.
Preferably, reinforcement foundation includes two layers in S3, and one layer is set close to foundation trench bottom, and another layer is close to the centre of foundation trench
Highly set.
By using above-mentioned technical proposal, the setting of such two layers of reinforcement foundation, it is mixed that basis after pouring can be greatly improved
Coagulate the intensity of soil.
Preferably, after the reinforcement foundation of foundation trench bottom is installed, the pouring of concrete is first carried out, until height reaches
The centre position of foundation trench, and after intensity reaches 2Mpa~2.2Mpa, then second layer reinforcement foundation is installed, and final grouting coagulation
Soil is until foundation trench completely fills out.
By using above-mentioned technical proposal, basis is set using the mode of two-step pouring, so on the one hand originally to base
When the bottom casting concrete of groove, the stop of upper strata reinforcement foundation can be avoided, so as to also it is avoided that upper strata reinforcement foundation
Damage, on the other hand can also ensure that reinforcement foundation evenly distributes to the stress of base concrete, so as to be advantageous to carry
The high intensity of base concrete.
Preferably, in S6 before wall body concrete is poured, presently in connection with face brush one layer of cement mortar or pad one layer 2~
3 centimeters thick 1：2 cement mortar.
, can be after wall body have been poured by using above-mentioned technical proposal, faying face and wall body can more integrally
Change, so as to be advantageous to improve the intensity of wall body.
Preferably, the template of wall body formwork erection is assembled using the clamping plate of smooth surface seven in S6, and perpendicular a tree, used in making timber for boats is with 8 × 10cm a tree, used in making timber for boats spacing
40cm, is enclosed stupefied with steel pipe, is supported with 8 × 10cm wooden a tree, used in making timber for boats as diagonal brace, and side form is positioned with ф 16 bolt to drawing, bolt
Spacing is 80cm, and bolt penetration hole can use hard plastic tube of the internal diameter for 20~25cm, and during form removal, bolt is extracted, then with 1:2 water
Cement mortar blocks bolt hole.
By using above-mentioned technical proposal, it is more smooth so on the one hand can to ensure that wall can ensure after pouring
State, be on the other hand also convenient for the dismounting work of template.
Preferably, the component of the concrete includes by weight：372~437 parts of cement, 175~193 parts of water, sand
564~582 parts, 5~6 parts of air entraining agent, 10~18 parts of phosphoamide, 12~15 parts of neopelex, emery wheel ash 25~35
Part, 5~9 parts of water reducer.
Preferably, the component of the concrete includes by weight：405 parts of cement, 184 parts of water, 573 parts of sand, bleed
5.5 parts of agent, 14 parts of phosphoamide, 13.5 parts of neopelex, emery wheel grey 30 parts, 7 parts of water reducer.
By using above-mentioned technical proposal, part urea can free reaction with the rusty stain carried originally on reinforcing bar, form network
Compound, and the surface of reinforcing bar is attached to, become diaphragm, so as to also just improve the oxidation resistant ability of reinforcing bar.Meanwhile by
It can be burrowed in Some Insects on concrete, and during this, urea and neopelex in concrete
It can be drawn into vivo by insect, at this moment urea will destroy insect body wall chitin, and neopelex can be by body wall
Wax coat dissolves, and it is waterproof to be attached to formation above.An air-locked tunic, so as to which also insect air-hole blockage just can be made simultaneously
Death by suffocation, so as to also just reduce destruction of the insect to coagulation figure.Furthermore neopelex is exactly that surface is lived originally
Property agent, so as to be advantageous to strengthen concrete in each raw material degree of mixing.
And emery wheel ash refer to emery wheel processing polishing casting when, particulate waste caused by phase mutual friction, if discharge
Environment will be polluted into environment, therefore, add it in concrete the pollution that can just reduce to environment, together
When, its Main Ingredients and Appearance is silica, and its granularity compare it is small, so it can be to the small spaces in concrete
Play a part of filling, improve the density of concrete.
Preferably, the air entraining agent is rosin soap RS-I air entraining agents.
By using above-mentioned technical proposal, mix this kind of air entraining agent its can be introduced during concrete mixes and stirs uniformly and
Stable independent micro-bubble, blocks the path of water, the anti-permeability performance of concrete is increased.Simultaneously as in concrete
The presence of micro-bubble, the workability and mobility of concrete can be improved, reduce bleeding, improve the durability of concrete.
Preferably, the water reducer is MH-JS-102 polycarboxylate water-reducers.
By using above-mentioned technical proposal, MH-JS-102 polycarboxylate water-reducers use methyl polyethylene glycol（MPEG）With it is different
Cyclobutenyl polyethylene glycol（VPEG）APEO polymeric monomer and unsaturated acids form through radical polymerization, and its inside has comb shape
Structure, it is polyoxyethylene groups long-chain that using in molecule, which has longer length, so that has bigger steric hindrance effect and electrostatic
Repulsion is acted on, and bigger dispersed and higher water-reducing rate is provided for cement.
In summary, the invention has the advantages that：
1st, when foundation trench is excavated, and gutter and catch pit are provided with, can so accelerate the discharge of ponding in foundation trench, protected
Being normally carried out for construction process is demonstrate,proved；
2nd, before wall body is poured, first to one layer of cement mortar of one layer of faying face brush or pad, so when wall body is poured, energy
Enough ensure the integraty of wall body and faying face；
3rd, after wall body has poured, wall and tall earth fill are fixed together using reinforcing bar rope, so can be further
Improve the ability of wall body resistance soil pressure.
Brief description of the drawings
Fig. 1 is a kind of construction technology of reinforced concrete retaining wall.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing 1.
Embodiment one,
A kind of construction technology of reinforced concrete retaining wall, comprises the following steps：
S1, a foundation trench is excavated out along tall earth fill bottom of slope edge, and gutter and catch pit are set at the edge of foundation trench, entered
Row draining；
S2, when foundation trench bottom is without ponding, lay blotter to the bottom of foundation trench, and be rammed into foundation soil with ramming machine；
S3, the prefabricated foundation reinforcing bar in foundation trench, wherein, reinforcement foundation includes two layers, and one layer is set close to foundation trench bottom, another layer
Intermediate altitude close to foundation trench is set, and after the reinforcement foundation of foundation trench bottom is installed, first carries out the pouring of concrete, until
Highly reach the centre position of foundation trench, and after intensity reaches 2Mpa~2.2Mpa, then second layer reinforcement foundation is installed, and it is secondary
Placing concrete is until foundation trench completely fills out；
S4, after the intensity of base concrete is put into 2.4Mpa~2.6Mpa, vertical wall body steel is installed in base concrete
Muscle；
S5, cast-in-place wall body and base concrete faying face, the concrete of the loose portions at faying face and laitance are cut, and
Cleaned up with water；
S6, before wall body concrete is poured, presently in connection with face brush one layer of cement mortar, afterwards erect wall body template, Xiang Mo
Cast-in-place wall body concrete in plate, when the intensity of wall body concrete reaches 2.7Mpa~2.9Mpa, swell fixture is squeezed into wall body
Towards the one side of tall earth fill, foundation pile is squeezed into tall earth fill afterwards, is tensed swell fixture and foundation pile with reinforcing bar rope
Connection.
Herein, the template of wall body formwork erection is assembled using the clamping plate of smooth surface seven in S6, and it is 40cm to erect a tree, used in making timber for boats with 8 × 10cm a tree, used in making timber for boats spacing,
Enclosed with steel pipe stupefied, be supported with 8 × 10cm wooden a tree, used in making timber for boats as diagonal brace, side form is positioned with ф 16 bolt to drawing, pitch of bolts
For 80cm, bolt penetration hole can use hard plastic tube of the internal diameter for 20~25cm, and during form removal, bolt is extracted, then with 1:2 cement bonded sands
Slurry blocks bolt hole.
In addition, the composition of concrete used in the present embodiment one is cement 372Kg, water 175Kg, sand 564Kg, rosin soap
Class RS-I air entraining agents 5Kg, phosphoamide 10Kg, neopelex 12Kg, emery wheel ash 25Kg, MH-JS-102 polycarboxylic acids subtract
Aqua 5Kg.Wherein, MH-JS-102 polycarboxylate water-reducers are produced by Hunan Ming Huang developments in science and technology Co., Ltd.
Embodiment two,
A kind of construction technology of reinforced concrete retaining wall, comprises the following steps：
S1, a foundation trench is excavated out along tall earth fill bottom of slope edge, and gutter and catch pit are set at the edge of foundation trench, entered
Row draining；
S2, when foundation trench bottom is without ponding, lay blotter to the bottom of foundation trench, and be rammed into foundation soil with ramming machine；
S3, the prefabricated foundation reinforcing bar in foundation trench, wherein, reinforcement foundation includes two layers, and one layer is set close to foundation trench bottom, another layer
Intermediate altitude close to foundation trench is set, and after the reinforcement foundation of foundation trench bottom is installed, first carries out the pouring of concrete, until
Highly reach the centre position of foundation trench, and after intensity reaches 2Mpa~2.2Mpa, then second layer reinforcement foundation is installed, and it is secondary
Placing concrete is until foundation trench completely fills out；
S4, after the intensity of base concrete is put into 2.4Mpa~2.6Mpa, vertical wall body steel is installed in base concrete
Muscle；
S5, cast-in-place wall body and base concrete faying face, the concrete of the loose portions at faying face and laitance are cut, and
Cleaned up with water；
S6, before wall body concrete is poured, presently in connection with face pad one layer 2~3 centimeters thick 1：2 cement mortar, after-frame
Wall body template, the cast-in-place wall body concrete into template, will be swollen when the intensity of wall body concrete reaches 2.7Mpa~2.9Mpa
Swollen screw squeezes into wall body towards the one side of tall earth fill, squeezes into foundation pile in tall earth fill afterwards, will be expanded with reinforcing bar rope
Screw and foundation pile tense connection.
Herein, the template of wall body formwork erection is assembled using the clamping plate of smooth surface seven in S6, and it is 40cm to erect a tree, used in making timber for boats with 8 × 10cm a tree, used in making timber for boats spacing,
Enclosed with steel pipe stupefied, be supported with 8 × 10cm wooden a tree, used in making timber for boats as diagonal brace, side form is positioned with ф 16 bolt to drawing, pitch of bolts
For 80cm, bolt penetration hole can use hard plastic tube of the internal diameter for 20~25cm, and during form removal, bolt is extracted, then with 1:2 cement bonded sands
Slurry blocks bolt hole.
In addition, the composition of concrete used in the present embodiment one is cement 437Kg, water 193Kg, sand 582Kg, rosin soap
Class RS-I air entraining agents 6Kg, phosphoamide 18Kg, neopelex 15Kg, emery wheel ash 35Kg, MH-JS-102 polycarboxylic acids subtract
Aqua 9Kg.
Embodiment three,
A kind of construction technology of reinforced concrete retaining wall, comprises the following steps：
S1, a foundation trench is excavated out along tall earth fill bottom of slope edge, and gutter and catch pit are set at the edge of foundation trench, entered
Row draining；
S2, when foundation trench bottom is without ponding, lay blotter to the bottom of foundation trench, and be rammed into foundation soil with ramming machine；
S3, the prefabricated foundation reinforcing bar in foundation trench, wherein, reinforcement foundation includes two layers, and one layer is set close to foundation trench bottom, another layer
Intermediate altitude close to foundation trench is set, and after the reinforcement foundation of foundation trench bottom is installed, first carries out the pouring of concrete, until
Highly reach the centre position of foundation trench, and after intensity reaches 2Mpa~2.2Mpa, then second layer reinforcement foundation is installed, and it is secondary
Placing concrete is until foundation trench completely fills out；
S4, after the intensity of base concrete is put into 2.4Mpa~2.6Mpa, vertical wall body steel is installed in base concrete
Muscle；
S5, cast-in-place wall body and base concrete faying face, the concrete of the loose portions at faying face and laitance are cut, and
Cleaned up with water；
S6, before wall body concrete is poured, presently in connection with face brush one layer of cement mortar, afterwards erect wall body template, Xiang Mo
Cast-in-place wall body concrete in plate, when the intensity of wall body concrete reaches 2.7Mpa~2.9Mpa, swell fixture is squeezed into wall body
Towards the one side of tall earth fill, foundation pile is squeezed into tall earth fill afterwards, is tensed swell fixture and foundation pile with reinforcing bar rope
Connection.
Herein, the template of wall body formwork erection is assembled using the clamping plate of smooth surface seven in S6, and it is 40cm to erect a tree, used in making timber for boats with 8 × 10cm a tree, used in making timber for boats spacing,
Enclosed with steel pipe stupefied, be supported with 8 × 10cm wooden a tree, used in making timber for boats as diagonal brace, side form is positioned with ф 16 bolt to drawing, pitch of bolts
For 80cm, bolt penetration hole can use hard plastic tube of the internal diameter for 20~25cm, and during form removal, bolt is extracted, then with 1:2 cement bonded sands
Slurry blocks bolt hole.
In addition, the composition of concrete used in the present embodiment one is cement 405Kg, water 184Kg, sand 573Kg, rosin soap
Class RS-I air entraining agents 5.5Kg, phosphoamide 14Kg, neopelex 13.5Kg, the poly- carboxylics of emery wheel ash 30Kg, MH-JS-102
Sour water reducer 7Kg.
Example IV,
A kind of construction technology of reinforced concrete retaining wall, comprises the following steps：
S1, a foundation trench is excavated out along tall earth fill bottom of slope edge, and gutter and catch pit are set at the edge of foundation trench, entered
Row draining；
S2, when foundation trench bottom is without ponding, lay blotter to the bottom of foundation trench, and be rammed into foundation soil with ramming machine；
S3, the prefabricated foundation reinforcing bar in foundation trench, wherein, reinforcement foundation includes two layers, and one layer is set close to foundation trench bottom, another layer
Intermediate altitude close to foundation trench is set, and after the reinforcement foundation of foundation trench bottom is installed, first carries out the pouring of concrete, until
Highly reach the centre position of foundation trench, and after intensity reaches 2Mpa~2.2Mpa, then second layer reinforcement foundation is installed, and it is secondary
Placing concrete is until foundation trench completely fills out；
S4, after the intensity of base concrete is put into 2.4Mpa~2.6Mpa, vertical wall body steel is installed in base concrete
Muscle；
S5, cast-in-place wall body and base concrete faying face, the concrete of the loose portions at faying face and laitance are cut, and
Cleaned up with water；
S6, before wall body concrete is poured, presently in connection with face pad one layer 2~3 centimeters thick 1：2 cement mortar, after-frame
Wall body template, the cast-in-place wall body concrete into template, will be swollen when the intensity of wall body concrete reaches 2.7Mpa~2.9Mpa
Swollen screw squeezes into wall body towards the one side of tall earth fill, squeezes into foundation pile in tall earth fill afterwards, will be expanded with reinforcing bar rope
Screw and foundation pile tense connection.
Herein, the template of wall body formwork erection is assembled using the clamping plate of smooth surface seven in S6, and it is 40cm to erect a tree, used in making timber for boats with 8 × 10cm a tree, used in making timber for boats spacing,
Enclosed with steel pipe stupefied, be supported with 8 × 10cm wooden a tree, used in making timber for boats as diagonal brace, side form is positioned with ф 16 bolt to drawing, pitch of bolts
For 80cm, bolt penetration hole can use hard plastic tube of the internal diameter for 20~25cm, and during form removal, bolt is extracted, then with 1:2 cement bonded sands
Slurry blocks bolt hole.
In addition, the composition of concrete used in the present embodiment one is cement 405Kg, water 193Kg, sand 564Kg, rosin soap
Class RS-I air entraining agents 5.5Kg, phosphoamide 14Kg, neopelex 15Kg, emery wheel ash 30Kg, MH-JS-102 polycarboxylic acids
Water reducer 9Kg.
Embodiment five,
A kind of construction technology of reinforced concrete retaining wall, comprises the following steps：
S1, a foundation trench is excavated out along tall earth fill bottom of slope edge, and gutter and catch pit are set at the edge of foundation trench, entered
Row draining；
S2, when foundation trench bottom is without ponding, lay blotter to the bottom of foundation trench, and be rammed into foundation soil with ramming machine；
S3, the prefabricated foundation reinforcing bar in foundation trench, wherein, reinforcement foundation includes two layers, and one layer is set close to foundation trench bottom, another layer
Intermediate altitude close to foundation trench is set, and after the reinforcement foundation of foundation trench bottom is installed, first carries out the pouring of concrete, until
Highly reach the centre position of foundation trench, and after intensity reaches 2Mpa~2.2Mpa, then second layer reinforcement foundation is installed, and it is secondary
Placing concrete is until foundation trench completely fills out；
S4, after the intensity of base concrete is put into 2.4Mpa~2.6Mpa, vertical wall body steel is installed in base concrete
Muscle；
S5, cast-in-place wall body and base concrete faying face, the concrete of the loose portions at faying face and laitance are cut, and
Cleaned up with water；
S6, before wall body concrete is poured, presently in connection with face pad one layer 2~3 centimeters thick 1：2 cement mortar, after-frame
Wall body template, the cast-in-place wall body concrete into template, will be swollen when the intensity of wall body concrete reaches 2.7Mpa~2.9Mpa
Swollen screw squeezes into wall body towards the one side of tall earth fill, squeezes into foundation pile in tall earth fill afterwards, will be expanded with reinforcing bar rope
Screw and foundation pile tense connection.
Herein, the template of wall body formwork erection is assembled using the clamping plate of smooth surface seven in S6, and it is 40cm to erect a tree, used in making timber for boats with 8 × 10cm a tree, used in making timber for boats spacing,
Enclosed with steel pipe stupefied, be supported with 8 × 10cm wooden a tree, used in making timber for boats as diagonal brace, side form is positioned with ф 16 bolt to drawing, pitch of bolts
For 80cm, bolt penetration hole can use hard plastic tube of the internal diameter for 20~25cm, and during form removal, bolt is extracted, then with 1:2 cement bonded sands
Slurry blocks bolt hole.
In addition, the composition of concrete used in the present embodiment one is cement 372Kg, water 184Kg, sand 573Kg, rosin soap
Class RS-I air entraining agents 6Kg, phosphoamide 18Kg, neopelex 12Kg, emery wheel ash 30Kg, MH-JS-102 polycarboxylic acids subtract
Aqua 7Kg.
By in embodiment one to embodiment five reinforced concrete retaining wall carry out compression strength test, obtain with
Lower data：Institute according to detection method be GB50107-2010
| Embodiment one | Embodiment two | Embodiment three | Example IV | Embodiment five | |
| Compression strength/Mpa | 4.834 | 5.681 | 5.062 | 4.947 | 4.894 |
By upper table as can be seen that the requirement of retaining wall can be fully achieved in the construction method of the present invention, and also greatly improve
Efficiency of construction.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
Member can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but as long as at this
All protected in the right of invention by Patent Law.
Claims (9)
1. a kind of construction technology of reinforced concrete retaining wall, comprises the following steps：
S1, a foundation trench is excavated out along tall earth fill bottom of slope edge, and gutter and catch pit are set at the edge of foundation trench, entered
Row draining；
S2, when foundation trench bottom is without ponding, lay blotter to the bottom of foundation trench, and be rammed into foundation soil with ramming machine；
S3, the prefabricated foundation reinforcing bar in foundation trench, and formwork erection pours base concrete into foundation trench；
S4, after the intensity of base concrete is put into 2.4Mpa~2.6Mpa, vertical wall body steel is installed in base concrete
Muscle；
S5, cast-in-place wall body and base concrete faying face, the concrete of the loose portions at faying face and laitance are cut, and
Cleaned up with water；
S6, erect wall body template, the cast-in-place wall body concrete into template, treat wall body concrete intensity reach 2.7Mpa~
During 2.9Mpa, swell fixture is squeezed into wall body towards the one side of tall earth fill, foundation pile is squeezed into tall earth fill afterwards, uses
Swell fixture and foundation pile are tensed connection by reinforcing bar rope.
A kind of 2. construction technology of reinforced concrete retaining wall according to claim 1, it is characterised in that：Basic steel in S3
Muscle includes two layers, and one layer is set close to foundation trench bottom, and another layer is set close to the intermediate altitude of foundation trench.
A kind of 3. construction technology of reinforced concrete retaining wall according to claim 2, it is characterised in that：Installing base
After the reinforcement foundation of trench bottom, the pouring of concrete is first carried out, until height reaches the centre position of foundation trench, and when intensity reaches
To after 2Mpa~2.2Mpa, then second layer reinforcement foundation is installed, and final grouting concrete is until foundation trench completely fills out.
A kind of 4. construction technology of reinforced concrete retaining wall according to claim 1, it is characterised in that：Poured in S6
Before wall body concrete, presently in connection with face brush one layer of cement mortar or pad one layer 2~3 centimeters thick 1：2 cement mortar.
A kind of 5. construction technology of reinforced concrete retaining wall according to claim 1, it is characterised in that：Wall body is stood in S6
The template of mould is assembled using the clamping plate of smooth surface seven, and it is 40cm to erect a tree, used in making timber for boats with 8 × 10cm a tree, used in making timber for boats spacing, enclosed with steel pipe it is stupefied, with 8 × 10cm's
Wooden a tree, used in making timber for boats is supported as diagonal brace, and side form is positioned with ф 16 bolt to drawing, and pitch of bolts 80cm, bolt penetration hole can use internal diameter
For 20~25cm hard plastic tube, during form removal, bolt is extracted, then with 1:2 cement mortar block bolt hole.
A kind of 6. construction technology of reinforced concrete retaining wall according to claim 1, it is characterised in that the concrete
Component include by weight：
372~437 parts of cement
175~193 parts of water
564~582 parts of sand
5~6 parts of air entraining agent
10~18 parts of phosphoamide
12~15 parts of neopelex
25~35 parts of emery wheel ash
5~9 parts of water reducer.
A kind of 7. construction technology of reinforced concrete retaining wall according to claim 6, it is characterised in that the concrete
Component include by weight：
405 parts of cement
184 parts of water
573 parts of sand
5.5 parts of air entraining agent
14 parts of phosphoamide
13.5 parts of neopelex
30 parts of emery wheel ash
7 parts of water reducer.
A kind of 8. construction technology of reinforced concrete retaining wall according to claim 6 or 7, it is characterised in that：It is described to draw
Gas agent is rosin soap RS-I air entraining agents.
A kind of 9. construction technology of reinforced concrete retaining wall according to claim 6 or 7, it is characterised in that：It is described to subtract
Aqua is MH-JS-102 polycarboxylate water-reducers.
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| CN201710530242.5A CN107366302B (en) | 2017-06-27 | 2017-06-27 | A kind of construction technology of reinforced concrete retaining wall |
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| CN201710530242.5A CN107366302B (en) | 2017-06-27 | 2017-06-27 | A kind of construction technology of reinforced concrete retaining wall |
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| CN107366302A true CN107366302A (en) | 2017-11-21 |
| CN107366302B CN107366302B (en) | 2019-02-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109986732A (en) * | 2017-12-29 | 2019-07-09 | 宁波荣玛塑胶有限公司 | A kind of rotational moulding preparation process blowing ground machine shell |
| CN110387885A (en) * | 2019-07-30 | 2019-10-29 | 杭州江润科技有限公司 | The construction method that prefabricated PC temporarily covers |
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| KR20090042395A (en) * | 2007-10-26 | 2009-04-30 | 김동립 | Retainning wall and its construction method |
| CN103469815A (en) * | 2013-09-23 | 2013-12-25 | 江苏省交通科学研究院股份有限公司 | Construction method for protecting slope of reinforced-concrete retaining wall |
| CN104195911A (en) * | 2014-08-26 | 2014-12-10 | 德州市公路工程总公司 | Widened embankment structure with beside-water cliff high retaining wall fill section and construction method of widened embankment structure |
| CN204225147U (en) * | 2014-11-04 | 2015-03-25 | 深圳市勘察研究院有限公司 | Concrete half gravity reinforced retaining wall |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109986732A (en) * | 2017-12-29 | 2019-07-09 | 宁波荣玛塑胶有限公司 | A kind of rotational moulding preparation process blowing ground machine shell |
| CN110387885A (en) * | 2019-07-30 | 2019-10-29 | 杭州江润科技有限公司 | The construction method that prefabricated PC temporarily covers |
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| Publication number | Publication date |
|---|---|
| CN107366302B (en) | 2019-02-05 |
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