CN105951743A - Plum blossom-shaped profile steel cement stirring wall - Google Patents
Plum blossom-shaped profile steel cement stirring wall Download PDFInfo
- Publication number
- CN105951743A CN105951743A CN201610397983.6A CN201610397983A CN105951743A CN 105951743 A CN105951743 A CN 105951743A CN 201610397983 A CN201610397983 A CN 201610397983A CN 105951743 A CN105951743 A CN 105951743A
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- shaped steel
- cement mixing
- cement
- wall
- row
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Classifications
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- 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
- E02D5/20—Bulkheads or similar walls made of prefabricated parts and concrete, including reinforced concrete, in situ
-
- 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
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention discloses a plum blossom-shaped profile steel cement stirring wall. The plum blossom-shaped profile steel cement stirring wall comprises at least two rows of cement stirring walls and profile steel. Each row of cement stirring wall includes multiple cement stirring piles; adjacent cement stirring piles in each row of cement stirring wall approach each other, and one parts are combined as a whole, wherein the outer row of cement stirring piles is positioned between two adjacent inner-row cement stirring piles, and is combined with one parts of the two adjacent inner-row cement stirring piles as a whole to form a plum blossom-shaped structure; and the profile steel is vertically inserted in the inner row of cement stirring piles. As the profile steel is inserted in cement as reinforcing materials, the total rigidity of the cement stirring piles is greatly improved, and the structural strength reliability is high.
Description
Technical field
The application relates to field of civil engineering, especially relates to the structure of a kind of cement mixing wall.
Background technology
Pattern foundation pit supporting structure is a traditional problem in basis and underground engineering construction, be again simultaneously one comprehensive
A strongest Geotechnical Engineering difficult problem, in existing soil mechanics, typical intensity and stable problem, contain again deformation and ask
Topic, also relates to the common effect of soil and supporting construction.
Initial base pit engineering is exactly simply to put slope heavy excavation, not only economy but also facilitate, and preferentially adopts in open space
With.Yet with the development of urban construction, building yard is often limited by reasons such as surrounding enviroment, foundation ditch work
Journey can not meet present stage requirement.
Summary of the invention
The application provides a kind of novel quincunx shaped steel cement mixing wall, formed have together some strength and
Rigidity, continuous whole underground wall body.
The quincunx shaped steel cement mixing wall that the application provides, including:
At least two row's cement mixing walls, often row's cement mixing wall includes that some cement mixing piles, every draining mud stir
Mix that the adjacent cement mixing pile in wall is close to each other and a part is combined into one, wherein, the cement of outer row
Mixing pile is position between two adjacent internal drainage mud mixing piles, and simultaneously adjacent with said two in
Row's cement mixing pile part is combined into one, and forms plum-shaped structure；
And shaped steel, described shaped steel is inserted vertically in internal drainage mud mixing pile.
As the further improvement of described quincunx shaped steel cement mixing wall, between adjacent shaped steel, it is spaced a water
Mud mixing pile.
As the further improvement of described quincunx shaped steel cement mixing wall, described shaped steel is H profile steel.
As the further improvement of described quincunx shaped steel cement mixing wall, described H profile steel is downwards beyond cement
Mixing pile.
As the further improvement of described quincunx shaped steel cement mixing wall, described H profile steel is downwards beyond cement
Length >=the 2m of mixing pile.
As the further improvement of described quincunx shaped steel cement mixing wall, cement mixing wall and shaped steel are passed through
Anchorage cable anchoring.
As the further improvement of described quincunx shaped steel cement mixing wall, with Guan Liang or waist rail, shaped steel is linked to be
Overall.
As the further improvement of described quincunx shaped steel cement mixing wall, described shaped steel keeps and foundation ditch sideline
Vertically.
The application provides the benefit that:
The quincunx shaped steel cement mixing wall that the application provides, including at least two row's cement mixing wall and shaped steel.
Often row's cement mixing wall includes some cement mixing piles, the often adjacent cement mixing pile phase in row's cement mixing wall
A most close and part is combined into one, and wherein, the cement mixing pile of outer row is positioned at two adjacent rows
Position between cement mixing pile, and simultaneously the most adjacent with a said two internal drainage mud mixing pile part is combined into
Integrally, plum-shaped structure is formed；And shaped steel is inserted vertically in internal drainage mud mixing pile.Due in cement
Inserting shaped steel as material of putting more energy into, substantially increase the integral rigidity of cement mixing pile, its structural strength can
By degree height.
Accompanying drawing explanation
Fig. 1 is the structural representation of the application quincunx shaped steel a kind of embodiment of cement mixing wall；
Fig. 2 is the FB(flow block) of the application quincunx shaped steel a kind of embodiment of cement mixing wall method of construction.
Detailed description of the invention
Combine accompanying drawing below by detailed description of the invention the present invention is described in further detail.The application is permissible
Realize with multiple different form, however it is not limited to the embodiment described by the present embodiment.Following tool is provided
The purpose of body embodiment is easy for present disclosure is become apparent from thorough explanation, the most upper and lower,
Left and right wait indicating position words be only for shown structure in respective figure for position.
But, those skilled in the art may be aware that one or more detail describes
Can be omitted, or other method, assembly or material can also be used.In some instances, some
Embodiment does not describe or is not described later in detail.
Additionally, technical characteristic described herein, technical scheme can also in one or more embodiments with
The mode of any appropriate combines.For a person skilled in the art, it is easy to understand and reality provided herein
Step or the operation order of executing the relevant method of example can also change.Therefore, any in drawings and Examples
Order is merely illustrative purposes, does not implies that requirement in a certain order, requires unless expressly stated to press
According to a certain order.
Herein for parts institute serialization number itself, such as " first ", " second " etc., it is only used for distinguishing and is retouched
The object stated, does not have any order or art-recognized meanings.And the application described " connection ", " connection ", such as nothing
Special instruction, all includes directly or indirectly connecting (connection).
Embodiment one:
The present embodiment one provides a kind of quincunx shaped steel cement mixing wall, and it can be formed has some strength together
With rigidity, continuous whole underground wall body.
Refer to Fig. 1, it includes at least two row's cement mixing wall 110,120 and shaped steel 200.Every draining
Mud stirring wall includes some cement mixing piles, and often the adjacent cement mixing pile in row's cement mixing wall is close to each other
And a part is combined into one, wherein, the cement mixing pile 121 of outer row is positioned at two adjacent internal drainages
Position between mud mixing pile 111, and the internal drainage mud mixing pile part combination the most adjacent with said two
Integral, form plum-shaped structure；And shaped steel 200 is inserted vertically in internal drainage mud mixing pile 111.
Refer to Fig. 1, can be to be spaced one or more cement mixing piles between adjacent shaped steel.
Further, shaped steel is H profile steel.
Quincunx shaped steel cement mixing wall construction technology uses cement (or other cement class materials) as solidification
Agent, by Mixing Machine, forces mix, cement mortar and the soil body by the original state soil body and the cement mortar of ground depths
Between a series of physics, chemical reaction can occur become there is certain entirety so that subsoil soil knot is hard
Property, water stability and the piling wall of some strength.Utilize Piling with High-frequency Vibration by H profile steel at cement mixing pile
In squeeze into, make H profile steel be deep into following certain distance at the bottom of mixing pile (typically take 2m or more than), with fully
Playing the effect of shaped steel, improve the anti-lateral rigidity of whole supporting construction, shaped steel is under the package action of cement
Receive Confinement effect, be possible to prevent giving full play to of shaped steel unstability, beneficially shaped steel intensity.
Quincunx shaped steel cement mixing wall technology takes full advantage of SMW engineering method advantage in terms of pattern foundation pit supporting structure,
In view of engineering characteristic and the mechanical property of multi-form material, owing to inserting H profile steel conduct in cement
Put more energy into material, substantially increase the integral rigidity of cement mixing pile, be significantly less than again in construction costs simultaneously
The cost of diaphram wall, and the cast-in-situ bored pile used in conventional pattern foundation pit supporting structure is added what measures of preventing water was formed
Built pile unites two into one, and decreases working procedure, improves speed of application, and its structural strength reliability is high,
There is large development prospect.
Quincunx shaped steel cement mixing wall construction technology refers to utilize mixing pile machine to construct, by prunus mume (sieb.) sieb.et zucc. around foundation ditch
Flower-shape arranges two row's cement mixing walls 110,120, then at two row's cement mixing pile inside lines 110,
Piling with High-frequency Vibration is utilized to squeeze into H profile steel (as shown in Figure 1) by design requirement before cement mixing pile initial set,
And make H profile steel driving depth beyond cement mixing pile degree of depth certain distance (beyond distance >=2m) to obtain more
High anti-lateral rigidity.After mixing pile hardening, foundation ditch is carried out stage excavation and is successively suitable for Guan Liang or waist rail
H profile steel is linked to be entirety, afterwards with anchorage cable anchoring and excavation of foundation pit face is carried out spray anchor.In this construction technology
In, the mixing pile 110,120 of two row's quincuncial arrangement is arranged compared with other forms can play more preferable stagnant water effect,
Squeeze into the H profile steel of foundation ditch under the common effect of waist rail and anchor cable, be provided that enough anti-side, to degree, thus are tieed up
Hold stablizing of excavation pit.
Quincunx shaped steel cement mixing wall combines the sealing performance of cement and the high-strength characteristic of shaped steel effectively
A kind of impervious good, rigidity is high, economic building enclosure, compared with other building enclosures, have with
Lower feature:
Little to engineering base environmental effect peripherally: owing to mixing cement mixing on the spot, really to make in whipping process
Gush on soil deformation direction the most earthward and do not jeopardize the side soil body, thus with construction of diaphragm wall and pile foundation construction phase
Ratio, less to neighbouring land disturbance, therefore will not produce and near floor level is sunk, inclined building, house rhegma
Or the hazardness such as underground installation destruction.
High sealing: sufficiently strengthened stirring due to cement and the soil body and no matter body of wall total length is in longitudinal direction
With laterally there is no seam, thus go along with sb. to guard him knot than the campshed of the compositions such as traditional diaphram wall and cast-in-situ bored pile
Structure has more reliable sealing, and its infiltration coefficient is 10-7～10-8cm/s, the most even up to 10-9cm/s.
It is suitable in multiple soil layer construction: use the shaped steel cement mixing wall of multiaxis twist bit mode to be suitable for
In from soft stratum to sand, sandy pear variety and the cobble of more than diameter 100mm, even weathered rock formation etc., as
Fruit uses pre-drilling method to could be applicable to the rock stratum of hardpan or below uniaxial compressive strength 60MPa.
Duration is short, cost is low, cost saving: reinforced by undisturbed soil grouting stirring on the spot owing to using
Mode construct and once becoming wall, therefore construction technology is simple, and efficiency is the fastest, and the required duration is all compared with other
Engineering method is short.Enter day up to 8～10m in the case of the general degree of depth 20～25m, up to about 12m time fast,
Subterranean wall is constructed fast about 1.5～2 times, and not by ectocine, cost aspect safeguards that this is as subterranean wall
About 70%, it is considered to Shaped steel recovery then can be down to 60%, can low 10%～20% than drilled pile.
Environmental pollution is little: the outer freight volume of roach is fewer than other engineering methods, and during construction, noise is less, shakes little, water
Mud suspension mixes with soil will not produce waste mud, there is not mud veclamation and processes problem.First do roach foundation trench,
Limiting the pollution load of overflow of waste cement, the final a small amount of waste cement the most recycling treated conduct produced is laid
The material of place road, had the most both reduced the social benefit of molding steel cement mixing wall, economic benefit is it
His soil-baffling structure is incomparable.
Refer to Fig. 2, this is quincunx, and shaped steel cement mixing wall method of construction technological process is as follows:
S001: smooth location.
Before blender construction, it is necessary to first carry out levelling of the land, remove ground and underground obstacle in construction site,
And cut the hard thing of the supercrust in stirring region.
S002: surveying setting-out.
According to the coordinate basis point provided, carry out setting-out and the work of elevation pilot measurement according to design drawing, and do
Get well permanent and temporary sign.Carry out measurement technique check list after setting-out, submit to management side to carry out checking testing
Receive visa, confirm errorless after be stirred construction.
S003: excavation guide groove.
Specifically, go along with sb. to guard him centrage according to the mixing pile that setting-out goes out, with excavator along going along with sb. to guard him centerline parallel side
To digging work groove, ditch groove width 1.2m degree of depth 0.8m.And remove underground obstacle, more than excavation groove during soil
Should process in time, to ensure mixing pile machine normal construction, and reach Civilization Worksite requirement.
The construction in place of S004: mixing pile machine.
Operator control the movement of rig pile frame according to defined location, and perfusion forms at least two draining mud and stirs
Mix stake, and make at least two row's cement mixing piles become quincunx distribution to form cement mixing wall.
Specifically, at the working channel of excavation, carrying out location by construction requirement, operator are according to determining
Position strictly controls the movement of rig pile frame, it is ensured that boring axle center is not in place inclined, bores deep under keyhole simultaneously
That spends is up to standard, utilizes drilling rod and pile frame relative dislocation principle, makes the scale line of drilling depth on drilling pipe,
The lower brill of strict control, the speed promoted and the degree of depth.Cement mixing pile is that inside and outside foundation ditch, water proof encloses curtain, during construction
It is impermissible for that cold seam of constructing occurs, as occurred more than the cold seam of 24 hours, lap joint sleeve need to be used to bore or mend in heel row
Stake technique.According to designing the marked degree of depth, rig is in boring and promotes in overall process, keeps screw rod uniform rotation,
At the uniform velocity lower brill, at the uniform velocity promotes, and simultaneously according to lower brill and two kinds of different speed of lifting, injects different addition quantity
Cement grout, and take high-pressure jet to make cement stir in hole to mix and stir, point must repeat stirring bottom stake
Slip casting, it is ensured that whole stake stirring is fully, uniformly, it is ensured that the quality of mixing pile.
Pile body degree control main points: with two theodolites, shaft was corrected the most simultaneously before perforate,
Guarantee that shaft is vertical.Work progress carries out repetition measurement to support surrounding absolute altitude at random, it is ensured that machinery is in water
Level state is constructed, and often shaft is carried out perpendicularity repetition measurement with theodolite simultaneously.
Pile key control point: cement flow, grouting pressure use Artificial Control, the strict water controlling agitator
Mud consumption, water consumption is taked overall control, and is checked the proportion of cement mortar with proportion instrument at any time.The soil body should fill
Point stirring, strict keyhole sink, promote speed, make undisturbed soil the most broken, beneficially cement mortar with
Soil uniformly mixes and stirs.Serosity can not isolate, and cement grout should strictly be made by predetermined match ratio, for preventing
Mortar isolates, and must stir 30 seconds and pour slurry bucket again into before blowing.Mud jacking stage stock line can not block, no
Allowing disconnected slurry phenomenon, full stake palpus slip casting is uniform, and soil paste sandwich of layers must not occur.
S005:H shaped steel is constructed.
After mixing pile construction, insert shaped steel at corresponding cement mixing pile.
Specifically, after mixing pile construction, release the position, insertion point of H profile steel according to design drawing, use high frequency
H profile steel clamped by vibreatory hammer, adjusts H profile steel position, make shape steel web and foundation ditch sideline 300 after lifting
(as shown in Figure 1) vertical, should be in and normal direction two longitudinal along foundation ditch sideline during shaped steel press-in mixing pile
The perpendicularity of individual direction controlling shaped steel, prevents shaped steel crooked in process of press in.
H profile steel inserts key control point: shaped steel is marched into the arena and to be hung by root, when shaped steel is deposited bottom sleeper want uniformly
Place to reduce the deformation of shaped steel, the flatness of shaped steel to be checked before lower slotting H profile steel, it is ensured that shaped steel is beaten smoothly
Enter, shaped steel sling after with theodolite adjust shaped steel perpendicularity, slotting H profile steel can be descended after reaching perpendicularity.
To keep under strict control during inserting under shaped steel and adjust shaped steel perpendicularity in real time.Prevent shaped steel crooked and be inserted into foundation ditch
Internal.Level gauge is finally utilized to control the top mark height of H profile steel, it is ensured that the insertion depth of H profile steel.
S006: mud in cleaning groove.
Use digging machine that the cement in groove is cleaned out groove.
Specifically, due in the quantitatively injection stirring body of cement grout.Some cement is displaced ditch
In groove, use digging machine that the cement in groove is cleaned out groove.Keep the clean and tidy of groove edgewise, it is ensured that pile body
Hardened forming and the urgent need of next procedure, cleaned cement will start at 24 hours later hardening, with day
Rear excavation of foundation pit transports place together.
Above content is to combine specific embodiment further description made for the present invention, it is impossible to recognize
Determine the present invention be embodied as be confined to these explanations.Ordinary skill for the technical field of the invention
For personnel, without departing from the inventive concept of the premise, it is also possible to make some simple deduction or replace.
Claims (8)
1. a quincunx shaped steel cement mixing wall, it is characterised in that including:
At least two row's cement mixing walls, often row's cement mixing wall includes some cement mixing piles, often
Adjacent cement mixing pile in row's cement mixing wall is close to each other and a part is combined into one；
Wherein, the cement mixing pile of outer row is position between two adjacent internal drainage mud mixing piles,
And an internal drainage mud mixing pile part the most adjacent with said two is combined into one, form prunus mume (sieb.) sieb.et zucc.
Flower-shape structure；
And shaped steel, described shaped steel is inserted vertically in internal drainage mud mixing pile.
Quincunx shaped steel cement mixing wall the most as claimed in claim 1, it is characterised in that
A cement mixing pile it is spaced between adjacent shaped steel.
Quincunx shaped steel cement mixing wall the most as claimed in claim 1, it is characterised in that
Described shaped steel is H profile steel.
Quincunx shaped steel cement mixing wall the most as claimed in claim 3, it is characterised in that
Described H profile steel is downwards beyond cement mixing pile.
Quincunx shaped steel cement mixing wall the most as claimed in claim 4, it is characterised in that
Described H profile steel is downwards beyond the length >=2m of cement mixing pile.
Quincunx shaped steel cement mixing wall the most as claimed in claim 1, it is characterised in that
Cement mixing wall and shaped steel are passed through anchorage cable anchoring.
Quincunx shaped steel cement mixing wall the most as claimed in claim 1, it is characterised in that
With Guan Liang or waist rail, shaped steel is linked to be entirety.
Quincunx shaped steel cement mixing wall the most as claimed in claim 1, it is characterised in that
Described shaped steel keeps vertical with foundation ditch sideline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610397983.6A CN105951743A (en) | 2016-06-07 | 2016-06-07 | Plum blossom-shaped profile steel cement stirring wall |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610397983.6A CN105951743A (en) | 2016-06-07 | 2016-06-07 | Plum blossom-shaped profile steel cement stirring wall |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106567382A (en) * | 2016-10-25 | 2017-04-19 | 东通岩土科技（杭州）有限公司 | Foundation pit curtain construction method in gravel layer |
| CN111877359A (en) * | 2020-07-23 | 2020-11-03 | 广东宏堂基础建设工程有限公司 | Enclosed enclosure structure of support pile and construction method thereof |
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| CN106567382A (en) * | 2016-10-25 | 2017-04-19 | 东通岩土科技（杭州）有限公司 | Foundation pit curtain construction method in gravel layer |
| CN111877359A (en) * | 2020-07-23 | 2020-11-03 | 广东宏堂基础建设工程有限公司 | Enclosed enclosure structure of support pile and construction method thereof |
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Application publication date: 20160921 |