CN208152011U - Prefabricated prestressed underground continuous wall - Google Patents
Prefabricated prestressed underground continuous wall Download PDFInfo
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- CN208152011U CN208152011U CN201820665040.1U CN201820665040U CN208152011U CN 208152011 U CN208152011 U CN 208152011U CN 201820665040 U CN201820665040 U CN 201820665040U CN 208152011 U CN208152011 U CN 208152011U
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Abstract
The utility model relates to a kind of prefabricated prestressed underground continuous walls, including at least one prefabricated prestressed underground continuous wall component, each prefabricated prestressed underground continuous wall component includes the horizontally extending wall of width, at least two spaced apart deformed bars in left-right direction are provided in wall, deformed bar is fixed by prestressed pore passage anchorage, and each deformed bar is along the curved arcuate structure in thickness of wall body direction.The utility model solves the problems, such as that diaphram wall bending resistance drawing in the prior art and anti-crack ability are insufficient.
Description
Technical field
The utility model relates to the prefabricated prestressed underground continuous walls in a kind of building engineering field.
Background technique
Currently, diaphram wall, based on cast in situs, conventional on-site pours the main construction procedure of diaphram wall and is：
Box cut section is first carried out using the grooving equipment of profession, steel reinforcement cage is made after grooving, then lifts by crane and transfers steel reinforcement cage, pour under water
Concrete is built, is cut carrying out pile crown.It constructs and completes by this step 1 width ground-connecting-wall, every width ground-connecting-wall moves in circles the above step
Suddenly.Traditional ground-connecting-wall structure when facing large-scale construction project, have already appeared construction risk is big, consumptive material mostly with construction cost height
Etc. disadvantages.
Prefabricated prestressed underground continuous wall very good solution cast in situs diaphragm wall there are the drawbacks of, it is existing prefabricated pre-
Stress diaphram wall " a kind of Prefabricated pre-tensioned prestressed underground continuous wall ", the ground as disclosed in Chinese patent CN205804324U
Lower diaphragm wall is formed by several Prefabricated pre-tensioned prestressed underground continuous wall component on-site assemblies, continuous under Prefabricated pre-tensioned prestressed ground
Wall member includes wall and is located at the intracorporal several pretensioned bars of wall, and Prefabricated pre-tensioned prestressed underground continuous wall component is along pre-
The short transverse of pre-tensioned prestressing underground processed continuous member is divided into, pulling force large area and positioned at pulling force large area two sides
Two pulling force are smaller or pressurized zone, pretensioned bar are arranged along the short transverse overall length of diaphram wall component, that is,
Say that pretensioned bar is vertically arranged, the both ends of pretensioned bar are arranged in respectively in corresponding service sleeve, the length of service sleeve
Pulling force of the degree where with service sleeve be smaller or pressurized zone along Prefabricated pre-tensioned prestressed underground continuous wall component height side
To length it is identical, pretensioned bar only be located at pulling force large area part carry out prestressed stretch-draw.
Existing this diaphram wall, pretensioned bar overall length arrangement but non-overall length tensioning in ground-connecting-wall component, only
Pulling force large area apply prestressing force, advantageous as enclosed structure ground-connecting-wall support basement floor complex environment
Play more favorable prestressing force effect under operating condition, the ground-connecting-wall component on-site assembly that Prefabricated pre-tensioned prestressing force ground-connecting-wall uses,
Cost of labor is also greatlyd save while saving material.But it there is problems：Though the non-overall length tensioning of pretensioned bar,
But overall length is needed to be arranged, cause certain pretensioned bar to waste, in addition, pretensioned bar generates vertical to wall
Pulling force, and in actual use, the load action direction that wall is subject to is horizontally oriented more, the pre- tensioning steel of vertical lines arrangement
Muscle cannot more effectively resist the load action of horizontal direction, and the whole control deformability of wall is not strong, before wall breaks ring
Ductility is bad.
Utility model content
The purpose of this utility model is to provide a kind of prefabricated prestressed underground continuous walls, to solve in the prior artly
The problem of lower diaphragm wall bending resistance drawing and anti-crack ability deficiency.
In order to solve the above technical problems, the technical solution of the utility model is as follows：
A kind of prefabricated prestressed underground continuous wall, including at least one prefabricated prestressed underground continuous wall component, it is each prefabricated
Prestressed underground continuous wall component includes the horizontally extending wall of width, and at least two are provided in wall along left and right
The spaced apart deformed bar in direction, deformed bar are fixed by prestressed pore passage and anchorage, and each deformed bar is
Along the curved arcuate structure in thickness of wall body direction.
The wall includes steel reinforcement cage and is consolidated into integrally-built fiber concrete with steel reinforcement cage.
The upper end anchorage point of deformed bar and anchoring lower ends position are located at the same side of the wall, deformed bar
Upper end anchorage point be in the downside of wall upper end, the anchoring lower ends position of deformed bar is in the upper of wall lower end
Side.
Anchorage includes the upper end anchorage anchored to the upper end anchorage point of deformed bar and to deformed bar
The lower end anchorage that anchoring lower ends position is anchored is provided with the upper peace for the upper end anchorage installation on the same side of wall
Hole and the lower mounting hole for the lower end anchorage installation are filled, upper installing hole is from the bottom to top gradually towards the arc top far from arcuate structure
The inclined hole that the inclination of portion direction extends, lower mounting hole are from top to bottom gradually to tilt to extend towards the arc top-direction far from arcuate structure
Inclined hole.
The bellows of arcuate structure is preset in wall, each deformed bar is arranged in respectively in corresponding bellows.
The aperture of upper installing hole from top to bottom gradually becomes smaller, and the aperture of lower mounting hole gradually becomes smaller from the bottom to top, upper end anchor
Tool includes the upper anchor slab being set in the upper installing hole, and lower end anchorage includes the lower anchor slab being set in the lower mounting hole,
Upper anchor slab, lower anchor slab are in tilted layout, and the both ends of deformed bar are connected separately with the anchor for cooperating with corresponding anchor slab block
Gu intermediate plate.
The slope of the upside hole wall of upper installing hole is greater than the slope of the downside hole wall of upper installing hole；The upper-side hole of lower mounting hole
The slope of wall is greater than the slope of the downside hole wall of lower mounting hole.
It is filled in upper and lower mounting hole and is consolidated into integrally-built sealing off and covering anchorage concrete with corresponding anchor slab, anchoring clamping plate.
The bellows of arcuate structure is preset in wall, each deformed bar is arranged in respectively in corresponding bellows, wall
It is provided with the injected hole communicated with the bellows on body, is provided with vent on upper anchor slab and/or lower anchor slab.
Multiple hollow via-holes for running through the wall along the vertical direction are additionally provided on the wall, each hollow via-hole is along left
Right direction arranged for interval, each deformed bar are located between corresponding two hollow via-holes.
The beneficial effects of the utility model are：Deformed bar is along the curved arc in thickness of wall body direction in the utility model
Shape structure, the component in the existing horizontal direction of the pulling force that deformed bar generates wall, and have the component of vertical direction, therefore
The tensile strength of wall all directions can be improved, more effectively control middle part deformation and the cracking of wall.
Further, upper end anchorage and lower end anchorage are located at the same side of the wall, the upper end of upper end anchorage and wall
The lower end arranged for interval of portion's arranged for interval, lower end anchorage and wall, that is to say, that deformed bar is not overall length arrangement, is only
The pulling force large area arrangement prestress reinforcing bar in the middle part of diaphram wall not only contributes to send out as diaphram wall complex working condition
More favorable prestressing force effect is waved, and also saves the use of deformed bar, then deformed bar is cooperated to be arcuate structure,
Therefore upper end anchorage, lower end anchorage can be set to the same side of wall, can guarantee that the use of deformed bar is long in this way
Deformed bar length between degree and upper and lower end anchorage is almost the same, further saves the use length of deformed bar.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of prefabricated prestressed underground continuous wall in the utility model；
Fig. 2 is the structural schematic diagram of prefabricated prestressed underground continuous wall component in Fig. 1；
Fig. 3 is A-A in Fig. 2 to sectional view；
Fig. 4 is the B-B direction sectional view in Fig. 2；
Fig. 5 is the arrangement schematic diagram of the position C-C deformed bar in Fig. 2；
Fig. 6 is enlarged drawing at the D of Fig. 5.
Specific embodiment
A kind of implementation of prefabricated prestressed underground continuous wall is for example shown in Fig. 1 ~ 6：Precast prestressedly including at least two
The structure of continuous wall member 23 down, each prefabricated prestressed underground continuous wall component 23 is all the same, now only prefabricated pre- to one of them
The specific structure of stress diaphram wall component is described in detail.Prefabricated prestressed underground continuous wall component includes width along water
Square to extension wall, wall includes steel reinforcement cage and is consolidated into integrally-built fiber concrete 1, steel reinforcement cage packet with steel reinforcement cage
Include the vertical reinforcement 3 of two rows of overall lengths positioned at thickness of wall body two sides and the transverse steel 4 with corresponding Vertical bar connection, lateral steel
The left end of muscle 4 is formed by bending splayed structure 6 towards opposite, and the right end of transverse steel is straight lengths of rebar 7, splayed structure 6
It is exposed structure with straight lengths of rebar 7, splayed structure is consistent with the height of straight lengths of rebar, and exposed structure and corresponding concrete can
To be formed together engaging portion 8.Multiple hollow via-holes 2 spaced apart in left-right direction are provided in wall, each hollow via-hole 2 is
Run through wall along the vertical direction.Multiple bellowss 5 spaced apart in left-right direction, the equal position of each bellows 5 are provided in wall
Between corresponding two hollow via-holes, deformed bar 5 is equipped in each bellows, because bellows is along thickness of wall body
The curved arcuate structure in direction, therefore corresponding deformed bar is also along the curved arcuate structure in thickness of wall body direction.In wall
Upper installing hole 20 and lower mounting hole 21 are provided on the same side of body, upper installing hole 20 and the upper end interval of wall are arranged,
The lower end interval of lower mounting hole 21 and wall is arranged, and upper installing hole is from the bottom to top gradually towards the arc top far from arcuate structure
The inclined hole that direction inclination extends, lower mounting hole are from top to bottom gradually to extend towards the arc top-direction inclination far from arcuate structure
Inclined hole can guarantee that mounting hole is consistent with the trend of bellows, is conducive to wearing for deformed bar, while also having utilization in this way
The good tensile stress of deformed bar.The aperture of upper installing hole from top to bottom gradually becomes smaller, and the aperture of lower mounting hole is from the bottom to top
It gradually becomes smaller, the upper anchorage point of deformed bar and anchoring lower ends position passes through upper end anchorage respectively and lower end anchorage is fixed,
Upper end anchorage includes the upper anchor slab 14 being set in upper installing hole, and lower end anchorage includes the lower anchor slab being set in lower mounting hole,
Upper anchor slab 14, lower anchor slab are in tilted layout, and the both ends of deformed bar are connected separately with for cooperating with corresponding anchor slab block
Anchoring clamping plate 16, the spiral bar 12 with elastic force is provided on the inside of upper and lower anchor slab, and the upper end of deformed bar forms tensioning
The lower end at end, deformed bar forms anchored end, and upper installing hole, lower mounting hole are bellmouth, utilize bellmouth and corresponding anchor
The wedging of plate and spiral bar cooperation anchor deformed bar.The slope of the upside hole wall of upper installing hole is greater than upper installing hole
The slope of downside hole wall；The slope of the upside hole wall of lower mounting hole is greater than the slope of the downside hole wall of lower mounting hole, in this way can be with
More convenient carries out anchoring operation to deformed bar.The injected hole 10 communicated with the bellows is provided on wall, on
Vent 11 is provided on anchor slab.
The adjacent segment of two neighboring prefabricated prestressed underground continuous wall component is provided with that recess is opposite to be prolonged along the vertical direction
The arc-shaped depression portion 22 stretched.Individually prefabricated prestressed underground continuous wall component is in the prefabrication process of factory：By transverse steel and
Vertical reinforcement makes steel reinforcement cage, presets bellows, reserves hollow circular through-hole, carries out fiber concrete and pours, fiber concrete
It pours after pouring integral structure with bellows, upper and lower mounting hole is also molded.When concrete strength reaches design strength
When 80% or more, deformed bar is worn in bellows, applies prestressing force to deformed bar, and pass through spiral bar and anchor slab
Cooperation with bellmouth keeps prestressing force, and by injected hole, into bellows, cement injection, vent can guarantee cement
Slurry can sufficiently wrap up deformed bar, and sealing off and covering anchorage concrete is poured into upper and lower mounting hole, avoids anchoring piece is exposed from getting rusty, complete
At the production of single precast prestressed underground wall body component.Deformed bar is to apply after pouring to wall in the utility model
Stress, therefore the prefabricated prestressed underground continuous wall in the utility model is also referred to as post stretching prefabricated prestressed underground continuous wall.
Strength of wall body not only can be improved in hollow via-hole, while accelerating speed of application, in addition in hollow via-hole settable circumferential reinforcement and
Connector, is suitable for " unification of two walls " diaphram wall, and it is mixed to have taken into account prestressing force for the transverse steel and vertical reinforcement of wall two sides
The superior structure performance of solidifying soil and both armored concrete can efficiently control the crack under working load effect and amount of deflection,
There is preferable ductility again before destroying.The sides adjacent of two prefabricated prestressed underground continuous wall components has an exposed steel bar, when use
Mutually agree with, while pouring impervious slightly expanded concrete connector, improve the intensity and impermeability of underground continuous wall connector, reinforces
The globality of continuous underground wall structure, and the sealing effect of connector is good.In the other embodiments of the utility model：Upper end anchor
Tool, lower end anchorage can also be bolt fastening structure or structure are welded and fixed；As needed, prefabricated prestressed underground continuous wall structure
The number of part can also be one, three or other numbers；The height of splayed structure and straight lengths of rebar can also be different.
The construction method of prefabricated prestressed underground continuous wall includes the following steps in the utility model：The first step：Trench
Slot, kinds of processes can be used by excavating groove, and two-wheel flute milling machine groove milling can also be used in available hydraulic grab claw grooving, can be with
With gang drill formula drill flute machine drill slot；Second step, by lifting appliance by prefabricated prestressed underground continuous wall component transfer to mixed with
In the geosyncline of clay hardening agent, transfer prefabricated prestressed underground continuous wall building course in, the mud containing clay hardening agent into
Enter in the hollow via-hole of wall, the mud of argillaceous curing agent is full of in hollow via-hole, can be used as hollow via-hole after slurry curing
Interior permanent filler, therefore in the present invention, hollow via-hole reduces coagulation in addition to that can play mitigation wall weight
The effect of native usage amount can also play resistance when reducing wall decentralization between mud, while it is indirect with mud to improve wall
Contacting surface product, guarantees the effect of wall and mud bonding strength；Third step hangs next prefabricated prestressed underground continuous wall structure
Part makes the splayed end of the transverse steel of one of prefabricated prestressed underground continuous wall component be located at another and prefabricated pre- answers
Between the straight lengths of rebar of the transverse steel of power diaphram wall component, splayed end overlaps with corresponding transverse steel and fixes, and the 4th
Step；Connect to slip casting between two neighboring prefabricated prestressed underground continuous wall component, or to two neighboring precast prestressed underground
Insertion connection steel reinforcement cage between continuous wall member, by each prefabricated prestressed underground continuous wall component transverse steel outstanding with connect steel
To slip casting between two neighboring prefabricated prestressed underground continuous wall component after muscle cage is fixed, tied between formation wall member after slip casting solidification
Zoarium, multiple prefabricated prestressed underground continuous wall components form whole diaphram wall.
Claims (10)
1. prefabricated prestressed underground continuous wall, including at least one prefabricated prestressed underground continuous wall component, each precast prestressed
Diaphram wall component includes the horizontally extending wall of width, between at least two are provided in wall in left-right direction
Every the deformed bar of arrangement, deformed bar is fixed by prestressed pore passage and anchorage, it is characterised in that：Each deformed bar
It is along the curved arcuate structure in thickness of wall body direction.
2. prefabricated prestressed underground continuous wall according to claim 1, it is characterised in that：The wall includes steel reinforcement cage
Integrally-built fiber concrete is consolidated into with steel reinforcement cage.
3. prefabricated prestressed underground continuous wall according to claim 1, it is characterised in that：The upper end of deformed bar anchors
Position and anchoring lower ends position are located at the same side of the wall, and the upper end anchorage point of deformed bar is in wall upper end
Downside, the anchoring lower ends position of deformed bar is in the upside of wall lower end.
4. prefabricated prestressed underground continuous wall according to claim 3, it is characterised in that：Anchorage includes to deformed bar
The upper end anchorage point upper end anchorage anchored and the lower end anchorage that deformed bar anchoring lower ends position is anchored,
The upper installing hole for the upper end anchorage installation and the lower peace for the lower end anchorage installation are provided on the same side of wall
Hole is filled, upper installing hole is the inclined hole gradually extended from the bottom to top towards the arc top-direction inclination far from arcuate structure, lower mounting hole
For the inclined hole from top to bottom gradually extended towards the arc top-direction inclination far from arcuate structure.
5. prefabricated prestressed underground continuous wall according to claim 4, it is characterised in that：Arcuate structure is preset in wall
Bellows, each deformed bar is arranged in respectively in corresponding bellows.
6. prefabricated prestressed underground continuous wall according to claim 4, it is characterised in that：The aperture of upper installing hole by up to
Under gradually become smaller, the aperture of lower mounting hole gradually becomes smaller from the bottom to top, and upper end anchorage includes being set in the upper installing hole
Upper anchor slab, lower end anchorage include the lower anchor slab being set in the lower mounting hole, and upper anchor slab, lower anchor slab are in tilted layout, answer in advance
The both ends of power reinforcing bar are connected separately with the anchoring clamping plate for cooperating with corresponding anchor slab block.
7. prefabricated prestressed underground continuous wall according to claim 6, it is characterised in that：The upside hole wall of upper installing hole
Slope is greater than the slope of the downside hole wall of upper installing hole；The slope of the upside hole wall of lower mounting hole is greater than the lower-side hole of lower mounting hole
The slope of wall.
8. prefabricated prestressed underground continuous wall according to claim 6, it is characterised in that：It is filled in upper and lower mounting hole
Have and is consolidated into integrally-built sealing off and covering anchorage concrete with corresponding anchor slab, anchoring clamping plate.
9. prefabricated prestressed underground continuous wall according to claim 6, it is characterised in that：Arcuate structure is preset in wall
Bellows, each deformed bar is arranged in respectively in corresponding bellows, is provided on wall and communicates with the bellows
Vent is provided on injected hole, upper anchor slab and/or lower anchor slab.
10. prefabricated prestressed underground continuous wall described in any one according to claim 1 ~ 9, it is characterised in that：The wall
On be additionally provided with multiple hollow via-holes for running through the wall along the vertical direction, each hollow via-hole arranged for interval in left-right direction,
Each deformed bar is located between corresponding two hollow via-holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820665040.1U CN208152011U (en) | 2018-05-07 | 2018-05-07 | Prefabricated prestressed underground continuous wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820665040.1U CN208152011U (en) | 2018-05-07 | 2018-05-07 | Prefabricated prestressed underground continuous wall |
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| Publication Number | Publication Date |
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| CN208152011U true CN208152011U (en) | 2018-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820665040.1U Active CN208152011U (en) | 2018-05-07 | 2018-05-07 | Prefabricated prestressed underground continuous wall |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258530A (en) * | 2019-06-04 | 2019-09-20 | 广州穗岩土木科技股份有限公司 | A kind of diaphram wall and its construction method using fore shaft pipe fitting |
-
2018
- 2018-05-07 CN CN201820665040.1U patent/CN208152011U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258530A (en) * | 2019-06-04 | 2019-09-20 | 广州穗岩土木科技股份有限公司 | A kind of diaphram wall and its construction method using fore shaft pipe fitting |
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