CN105908752B - Formwork supporting and stripping system for pouring concrete on side wall and working process of formwork supporting and stripping system - Google Patents
Formwork supporting and stripping system for pouring concrete on side wall and working process of formwork supporting and stripping system Download PDFInfo
- Publication number
- CN105908752B CN105908752B CN201610259858.9A CN201610259858A CN105908752B CN 105908752 B CN105908752 B CN 105908752B CN 201610259858 A CN201610259858 A CN 201610259858A CN 105908752 B CN105908752 B CN 105908752B
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- China
- Prior art keywords
- formwork
- template
- side wall
- rod
- transmission rod
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- 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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- 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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G19/00—Auxiliary treatment of forms, e.g. dismantling; Cleaning devices
Abstract
The invention discloses a formwork supporting and removing system for side wall concrete pouring and a working process thereof, wherein the system comprises an enclosure structure arranged on the side wall of a foundation pit and a side wall pouring formwork group arranged on the inner side of the enclosure structure, the side wall pouring formwork group comprises a first formwork and a second formwork, a side wall pouring part is formed at the interval between the first formwork and the second formwork, at least one formwork supporting and removing device for installing and removing the first formwork on the ground is arranged between the enclosure structure and the first formwork, and the second formwork is supported by a side wall trolley; the working process comprises the steps of installing the supporting cross rod and the transmission rod on the first template, hoisting the first template in place, and adjusting the transmission rod lead screw to enable the supporting cross rod to be fastened with the first template. The operation of installing and removing the first template can be completed by an operator only on the ground without entering the bottom of the foundation pit, and the method is particularly suitable for installing and removing the outer template in a narrow space, so that the cost, the progress and the quality of engineering construction can be well controlled.
Description
Technical Field
The invention relates to a formwork supporting and stripping system for side wall concrete pouring and a working process thereof.
Background
Usually at underground works shear force wall or basic cushion cap outside installation template, need reserve about 1 meter as the operating space of template installation construction when earthwork excavation and envelope construction, there is special case in order to reduce earthwork excavation and backfill engineering volume, or the structure size has the change, leads to outside template installation operating space narrow, and the operation workman can't get into the bottom and install and the template demolishs the operation, and the concrete performance has following several kinds of situations:
1) when the construction depth exceeds two meters during the construction of structures such as underground engineering or foundation bearing platforms, underground pipe ditches, ditches and the like, the foundation pit support of the earth excavation needs to be carried out before the earth excavation is carried out. When the depth is less than 5 meters, the support forms are generally steel sheet piles, spray anchor supports and the like, and when the excavation depth exceeds 5 meters, the support forms are generally steel sheet piles, drilled piles and underground continuous walls.
2) In many cases, due to geological reasons, the construction processes of steel sheet piles, bored piles and the like cause uneven supporting surfaces and offset, the space between the supporting surfaces and a structure needing concrete pouring is less than 50cm, no working space exists in formwork installation during construction of structural members, and difficulty is caused in formwork installation and dismantling.
3) For economic reasons, in order to reduce the earth excavation amount and backfill amount as much as possible, a constructor can reduce the distances between the control steel sheet piles, the drilled piles and the structural side lines as much as possible, and the template mounting and dismounting space is often caused to be incapable of meeting the requirements of workers on the operation working face.
4) In addition, in the construction process, due to the difficulty in moving and changing the underground pipeline or the change of the design, the condition that a formwork is required to be supported and removed in a narrow space also occurs.
In the past, once the condition that the formwork installation operation space can not meet the requirement of a construction operation surface occurs, the following methods are generally adopted:
1) the formwork is cancelled, the outer side protection structure is used as a formwork, concrete with the same proportion as the structure is directly poured, and the structure is equivalent to that the original designed gravel backfilling part on the outer side of the structure is backfilled by concrete.
The consequences of such a process are:
A. the deviation is generated between the structure size and the design, which is equivalent to that the steel bar protective layer is too large, on one hand, the size of the steel bar framework is influenced, the design requirement cannot be met, and the structure stress is influenced; on the other hand, the protective layer is too thick, and the protective layer is equivalent to plain concrete, so that the drying shrinkage cracking can be caused, and the effect is the same as that of the thin protective layer, and the durability is influenced.
B. The concrete with the same structure grade replaces gravel backfill, so that a large economic cost is paid;
C. after pouring is completed, the supporting steel sheet pile needs to be pulled out, and in the process of pulling out the steel sheet pile, a vibration hammer is usually adopted to destroy peripheral soil bodies and the bonding of the structure and the steel sheet pile, so that the process can destroy a solidified concrete structure, and the strength and the durability of the structure are influenced.
2) And (5) constructing a foundation pit supporting structure again, and enlarging the excavation range of the foundation pit so as to meet the construction conditions. Therefore, the cost of support and excavation is increased, and the construction period is delayed.
Disclosure of Invention
In order to overcome the defects of the prior art, the technical problem to be solved by the invention is to provide a formwork supporting and removing system for pouring side wall concrete, the system can be used for completing the operation of installing and removing a first formwork only on the ground without entering the bottom of a foundation pit, so that the system is particularly suitable for installing and removing an outer formwork in a narrow space, and the cost, the progress and the quality of engineering construction can be well controlled; correspondingly, the invention also provides a working process of the system, so that the system is very convenient and efficient to use.
In order to solve the technical problems, the invention adopts the technical scheme that:
the utility model provides a formwork stripping system for side wall concrete is pour, including setting up in the envelope of foundation ditch lateral wall, set up in the inboard side wall of envelope and pour template group, side wall is pour template group including the first template that is close to the envelope and the second template of keeping away from the envelope, the interval between first template and the second template forms a side wall and pours the position, and be provided with at least one between envelope and the first template and be used for installing the formwork stripping device who demolishs first template subaerial, the one side that the side wall was pour to the second template is kept away from is provided with the side wall platform truck that supports the second template.
Preferably, the formwork supporting and removing device comprises a supporting cross rod and a transmission rod, one end of the supporting cross rod is pivoted with the first formwork, the lower end of the transmission rod is pivoted with the other end of the supporting cross rod, the upper portion of the transmission rod is a screw rod, the screw rod is pivoted and arranged on the upper portion of the first formwork through a positioning bolt, and the length of the transmission rod can be adjusted through the adjusting screw rod.
Preferably, the number of the positioning pins is at least two, and the positioning pins are distributed along the extending direction of the first template.
Preferably, the distance between adjacent positioning pins is 20 cm.
Preferably, the upper part of the side wall trolley is horizontally provided with a cantilever rod towards the enclosing structure, and the upper part of the first template is fastened on the cantilever rod.
Preferably, the building envelope is a continuous wall or a steel sheet pile.
The above-mentioned a working process that is used for formwork stripping system that side wall concrete was pour includes:
s101, mounting a support cross rod and a transmission rod on a first template;
s102, hoisting the first template in place;
s103, adjusting the screw rod of the transmission rod to enable the support cross rod to tightly fasten the first template.
Preferably, the transmission rod in S101 may be selectively installed on the locating pin.
Preferably, after S103, the above working process further includes:
and S104, fastening the upper part of the first template on the cantilever rod.
Preferably, in the working process of the formwork support and removal system for pouring the side wall concrete, the procedure of the formwork removal process is opposite to that of the installation process.
The invention has the following beneficial effects:
according to the invention, through the formwork supporting and removing device, an operator can complete the mounting and removing operation of the first formwork only on the ground without entering the bottom of the foundation pit, and the formwork supporting and removing device is particularly suitable for mounting and removing the outer side formwork in a narrow space, so that the cost, the progress and the quality of engineering construction can be well controlled; the supporting and stripping device utilizes a triangular transmission principle, adjusts the supporting of the lower supporting cross rod to the side wall of the enclosure structure through the transmission rod, and is fastened and fixed on the ground, and when the mold is stripped, the angle of the lower supporting cross rod can be adjusted by loosening the positioning bolt and the screw rod above the supporting and stripping device and lifting the transmission rod on the ground, so that the aim of adjusting the distance in the horizontal direction is fulfilled, and the invention is very convenient and efficient to use.
Drawings
FIG. 1 is a schematic structural view of a formwork stripping system for sidewall concrete casting;
FIG. 2 is a schematic structural view of a formwork supporting and removing device
Fig. 3 is a flow chart illustrating the working process of a formwork stripping system for side wall concrete pouring.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings.
Referring to fig. 1, a formwork supporting and removing system for side wall concrete pouring comprises an enclosure structure 1 arranged on the side wall of a foundation pit and a side wall pouring formwork group arranged on the inner side of the enclosure structure 1, wherein the enclosure structure 1 is a continuous wall or a steel sheet pile, the side wall pouring formwork group comprises a first formwork 21 close to the enclosure structure 1 and a second formwork 22 far away from the enclosure structure 1, a side wall pouring part 3 is formed at the interval between the first formwork 21 and the second formwork 22, at least one formwork supporting and removing device for installing and removing the first formwork 21 on the ground is arranged between the enclosure structure 1 and the first formwork 21, a side wall trolley 5 for supporting the second formwork 22 is arranged on one side of the second formwork 22 far away from the side wall pouring part 3, and in order to ensure the stability of the first formwork 21 during actual use, as a preferred scheme, the number of the formwork supporting and removing devices is two, the formwork supporting and removing devices support different positions of the first formwork 21, meanwhile, in order to save cost and combine construction requirements and convenience, the two sides of the foundation pit are provided with the enclosure structure 1 and the side wall pouring template groups which are respectively a left side wall pouring template group and a right side wall pouring template group, and correspondingly, the side wall trolley 5 is arranged between the second templates 22 of the left side wall pouring template group and the second templates 22 of the right side wall pouring template group and plays a role in supporting the left side wall pouring template group and the right side wall pouring template group.
Referring to fig. 2, the mold supporting and removing device includes a supporting cross bar 41 having one end pivotally connected to the first mold plate 21, and a transmission rod 42, wherein the lower end of the transmission rod 42 is pivotally connected to the other end of the supporting cross bar 41, the upper portion of the transmission rod 42 is a screw rod 43, the screw rod 43 is pivotally connected to the upper portion of the first mold plate 21 through a positioning pin 44, and the length of the transmission rod 42 can be adjusted by the adjusting screw rod 43. The length of the transmission rod 42 is adjusted to enable one end of the support cross rod 41 pivoted with the transmission rod 42 to abut against the building envelope 1, so that the support cross rod 41 abuts against the first template 21. Preferably, the number of positioning pins 44 is at least two, the positioning pins 44 being distributed along the direction in which the first template 21 extends, such that when the adjustment screw 43 is insufficient to allow the transmission rod 42 to secure the support bar 41 to the first template 21, the positioning pins 44 connected to the screw 43 are switched such that the adjustment screw 43 allows the transmission rod 42 to secure the support bar 41 to the first template 21. According to the actual use condition, the concrete structure of the formwork supporting and removing device is as follows:
(1) support rail 41
The supporting cross rod 41 is calculated according to the stress of the first template 21, round steel with the diameter of 40-63 mm is adopted, different specifications are set according to the distance from the outer edge of the first template 21 to the side wall of the enclosure structure 1, and the length is generally +10 cm;
the two ends of the supporting cross bar 41 are provided with twisting lugs, the supporting cross bar is connected with the first template 21 and the transmission rod 42 through the twisting lugs, and the angle in the vertical direction is adjusted through the twisting lugs.
(2) Drive link 42
The transmission rod 42 is made of 40mm round steel, the upper portion of the transmission rod is provided with a screw rod 43, the length of the transmission rod can be adjusted through the screw rod 43, and the adjusting range is 0-20 cm. The lower support rail 41 can be secured by adjustment of the lead screw 43.
The two ends of the transmission rod 42 are also provided with twisting lugs, and the transmission rod is connected with the supporting cross rod 41 and the first template 21 through the twisting lugs.
(3) Positioning bolt 44
The positioning bolts 44 are arranged on the upper part of the first template 21 and are divided into three parts, and the distance between every two adjacent positioning bolts 44 can be set to be 20 cm.
When the adjusting distance of the transmission rod 42 is larger than the adjusting range of the screw rod 43, the adjusting purpose can be achieved by changing the positions of different positioning bolts 44.
Through the formwork supporting and removing device, an operator only needs to adjust the lower supporting cross rod 41 to prop the side wall of the enclosure structure 1 on the ground through the transmission rod 42 and fasten and fix the lower supporting cross rod on the ground, and when the formwork is removed, the transmission rod 42 is lifted on the ground through loosening the fastened screw rod 43 and the positioning bolt 44, and the aim of adjusting the distance in the horizontal direction can be achieved through adjusting the angle of the lower supporting cross rod 41.
Returning to fig. 1, the upper portion of the side wall trolley 5 is horizontally provided with a cantilever rod 6 towards the enclosure structure 1, and the upper portion of the first formwork 21 is fastened on the cantilever rod 6, so that the stability of the first formwork 21 can be further improved, and meanwhile, according to actual use, the lower end of the first formwork 21 can be provided with a support structure 7.
In addition, referring to fig. 3, the present invention also relates to a working process of the formwork stripping system for sidewall concrete pouring, which includes:
s101, mounting the supporting cross rod 41 and the transmission rod 42 on the first template 21;
s102, hoisting the first template 21 in place;
s103, adjusting the screw rod 43 of the transmission rod 42 to enable the supporting cross rod 41 to fasten the first template 21.
Preferably, the transmission rod 42 in S101 can be selectively installed on the positioning pin 44, so that the adjusting screw 43 enables the transmission rod 42 to enable the supporting cross rod 41 to fasten the first formwork 21, thereby meeting the requirements of different construction sizes and improving the practicability and applicability of the product.
Preferably, after S103, the above working process further includes: s104, the upper portion of the first formwork 21 is fastened to the cantilever bar 6, which can further improve the stability of the first formwork 21.
In a similar way, the working process of the formwork support and removal system for pouring the concrete of the side wall is opposite to the procedure of the installation process.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .
Claims (8)
1. The utility model provides a formwork stripping system for side wall concretes is pour, its characterized in that: the side wall pouring formwork group comprises a first formwork close to the enclosure structure and a second formwork far away from the enclosure structure, a side wall pouring position is formed at the interval between the first formwork and the second formwork, at least one formwork supporting and detaching device for installing and detaching the first formwork on the ground is arranged between the enclosure structure and the first formwork, and a side wall trolley for supporting the second formwork is arranged on one side of the second formwork far away from the side wall pouring position;
the mold supporting and removing device comprises a supporting cross rod and a transmission rod, one end of the supporting cross rod is pivoted with the first template, the lower end of the transmission rod is pivoted with the other end of the supporting cross rod, the upper part of the transmission rod is provided with a screw rod, the screw rod is pivoted and arranged on the upper part of the first template through a positioning bolt, and the length of the transmission rod can be adjusted by adjusting the screw rod; the number of the positioning bolts is at least two, and the positioning bolts are distributed along the extending direction of the first template; one end of the support cross rod pivoted with the transmission rod abuts against the side wall of the building enclosure.
2. The formwork stripping system for sidewall concrete casting of claim 1, wherein: the distance between adjacent positioning bolts is 20 cm.
3. The formwork stripping system for sidewall concrete casting of claim 1, wherein: the upper portion of side wall platform truck is provided with a cantilever bar to envelope direction level, the upper portion fastening of first template is on the cantilever bar.
4. The formwork stripping system for sidewall concrete casting of claim 1, wherein: the enclosure structure is a continuous wall or a steel sheet pile.
5. The working process of the formwork stripping system for sidewall concrete pouring according to claim 1, characterized in that: the mold supporting and removing device comprises a supporting cross rod and a transmission rod, one end of the supporting cross rod is pivoted with the first template, the lower end of the transmission rod is pivoted with the other end of the supporting cross rod, the upper part of the transmission rod is provided with a screw rod, the screw rod is pivoted and arranged on the upper part of the first template through a positioning bolt, and the length of the transmission rod can be adjusted by adjusting the screw rod;
the working process comprises the following steps:
s101, mounting a support cross rod and a transmission rod on a first template;
s102, hoisting the first template in place;
s103, adjusting the screw rod of the transmission rod to enable the support cross rod to tightly fasten the first template.
6. The working process of the formwork stripping system for sidewall concrete pouring according to claim 5, characterized in that: the number of the positioning bolts is at least two, the positioning bolts are distributed along the extending direction of the first template, and the transmission rod in the S101 can be selectively arranged on different positioning bolts, so that the adjusting screw rod can enable the transmission rod to enable the supporting cross rod to tightly fix the first template.
7. The operation process of the formwork stripping system for sidewall concrete casting according to claim 5, wherein a cantilever bar is horizontally arranged on the upper portion of the sidewall trolley towards the enclosure, and after S103, the operation process further comprises:
and S104, fastening the upper part of the first template on the cantilever rod.
8. The working process of the formwork stripping system for sidewall concrete pouring according to claim 5, characterized in that: the mould removal process is opposite to the installation process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610259858.9A CN105908752B (en) | 2016-04-22 | 2016-04-22 | Formwork supporting and stripping system for pouring concrete on side wall and working process of formwork supporting and stripping system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610259858.9A CN105908752B (en) | 2016-04-22 | 2016-04-22 | Formwork supporting and stripping system for pouring concrete on side wall and working process of formwork supporting and stripping system |
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| CN105908752A CN105908752A (en) | 2016-08-31 |
| CN105908752B true CN105908752B (en) | 2020-03-31 |
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| CN201610259858.9A Active CN105908752B (en) | 2016-04-22 | 2016-04-22 | Formwork supporting and stripping system for pouring concrete on side wall and working process of formwork supporting and stripping system |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905530A (en) * | 2018-01-19 | 2018-04-13 | 河南水建集团有限公司 | A kind of adjustable support for shuttering of movement for groove construction column |
| CN110004939A (en) * | 2019-04-01 | 2019-07-12 | 温州设计集团有限公司 | A kind of device and construction method applied to foundation pit support replacement |
| CN111576444B (en) * | 2020-06-01 | 2021-02-09 | 广东佰业泰建设工程有限公司 | Underground supporting structure of foundation pit and construction process thereof |
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