CN210459229U - Support assembled in deep basal pit and trade and prop construction frock - Google Patents
Support assembled in deep basal pit and trade and prop construction frock Download PDFInfo
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- CN210459229U CN210459229U CN201921101512.1U CN201921101512U CN210459229U CN 210459229 U CN210459229 U CN 210459229U CN 201921101512 U CN201921101512 U CN 201921101512U CN 210459229 U CN210459229 U CN 210459229U
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Abstract
The utility model provides a support assembled in deep basal pit and trade and prop construction frock, this frock including support the stake, go up the power strip, fertile groove, pass power strip, outer wall structure, soleplate in advance, demolish interior support, go up steel pipe component, pin-connected panel bracing, steel pipe component, concrete mound of preprocessing down. The construction method for constructing the deep foundation pit inner support assembled type support replacement by adopting the tool comprises the following steps: positioning a concrete pier → constructing a foundation slab or a pre-detached inner support → constructing a concrete pier → constructing an outer wall of a basement → constructing a concrete force transfer belt → installing an upper pre-processed steel pipe assembly and a spliced diagonal brace: → inner support dismantling → main structure construction. The utility model has the advantages of: the safety of the foundation pit can be greatly improved; the construction method can greatly improve the construction speed; the construction method accords with the construction concept of green and environmental protection.
Description
Technical Field
The utility model relates to a construction technical field, in particular to support assembled construction frock that trades in deep basal pit.
Background
Along with more and more underground buildings, the scale of foundation pit excavation is continuously enlarged, the depth is continuously deepened, and the safety risk brought by deep foundation pit construction is continuously increased. One major potential safety hazard in deep foundation pit construction is settlement and even collapse of surrounding structures caused by excessive deformation of a foundation pit supporting structure. In the foundation pit with a larger depth at the present stage, a supporting mode of an inner support and a supporting pile (or an underground continuous wall and the like, hereinafter referred to as a supporting pile) is mostly adopted, inevitable conflict can be generated between the construction of a main structure and the inner support structure, and the inner support needs to be removed when the construction of the main structure is influenced by the inner support structure. In the process of dismantling the inner support, the stress borne by the supporting structure can generate sudden change, and the supporting structure at the corner of the foundation pit and other weak positions is very easy to deform too much, so that very large loss can be caused if the treatment is improper.
The tool is used for solving the problem that a supporting structure is extremely easy to deform in the supporting process aiming at the supporting mode of the inner support and the supporting pile, the assembling type support-changing component capable of being turned over is arranged in the supporting process, the assembling type steel pipe inclined support component, the basement outer wall, the foundation pit supporting structure and the concrete pier connected with the bottom plate or the floor slab are arranged in the projection range of the inner support to be removed in advance, the supporting-removing reinforcing components formed by the structures are stressed together, and the deformation of the foundation pit is reduced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a support assembled in reducing foundation ditch deflection deep basal pit and trade and prop construction frock.
The scheme of the utility model is that:
the utility model provides an interior assembled construction frock that trades of support of deep basal pit, this frock is including supporting the stake, go up the power strip, fertile groove, pass power strip, outer wall structure, soleplate, demolish in advance the interior support, go up to add work in advance steel pipe component, pin-connected panel bracing, add work in advance steel pipe component, concrete mound down. The supporting pile is arranged on the left side face of the whole tool; the upper force transmission belt, the fertilizer groove and the lower force transmission belt are vertically arranged, and the right side of the upper force transmission belt, the fertilizer groove and the lower force transmission belt is vertically arranged with the outer wall structure. The fertilizer groove is arranged in the middle of the upper force transmission belt and the lower force transmission belt; the lower force transfer belt is arranged at the lower end of the plain soil layer and connected with the foundation slab; the foundation slab set up the lower extreme at whole frock. The pre-dismantling support is positioned at the upper end of the whole tool. An upper prefabricated steel pipe assembly is fixedly arranged on the right side of the upper end of the outer wall structure; the lower prefabricated steel pipe component is fixed at the corresponding position of the left side surface of the concrete pier, is axially arranged with the upper prefabricated steel pipe component and is used for installing and fixing the assembled inclined strut. The spliced inclined strut is connected between the upper prefabricated steel pipe assembly and the lower prefabricated steel pipe assembly. The concrete pier is fixed at the corresponding position on the right side of the foundation slab.
The upper prefabricated steel pipe assembly and the lower prefabricated steel pipe assembly are respectively composed of a flange plate, a reinforcing plate and embedded bolts; the flange plate is welded with the reinforcing plate, and the embedded bolt of the upper prefabricated steel pipe assembly is fixed in the outer wall structure; and the embedded bolt of the lower prefabricated steel pipe assembly is fixed in the concrete pier.
The construction method for constructing the deep foundation pit inner support assembled type support replacement by adopting the tool comprises the following steps:
(1) positioning the concrete pier, namely paying off and positioning the concrete pier on the cushion layer or the template according to the position required by the design.
(2) Construction of a foundation slab or a pre-demolished internal support: binding the foundation slab or the pre-removed inner support reinforcing steel bars according to design requirements, binding the vertical reinforcing steel bars of the concrete pier together when the foundation slab or the pre-removed inner support reinforcing steel bars are subjected to binding construction, and ensuring that the anchoring length of the concrete pier reinforcing steel bars meets the design requirements. And after the steel bars are bound, pouring a foundation slab or pre-removing the inner support concrete.
(3) Construction of concrete pier: the construction method comprises the following steps of cleaning a foundation slab and a pre-demolished inner support concrete surface before construction, pouring concrete of a concrete pier and embedding bolts after binding of concrete pier steel bars is finished, paying attention to layered pouring and vibrating compaction of the concrete, and installing steel pipe inclined strut end parts on the embedded bolts of the concrete pier after the concrete reaches the strength required by design. And firmly installing the end part member of the lower prefabricated steel pipe assembly after construction is finished.
(4) Construction of basement exterior wall: binding reinforcing steel bars of the basement exterior wall according to design requirements, embedding bolts on the inner side of the wall after the reinforcing steel bars are bound, wherein the height of the bolt on the uppermost part is preferably 1m below the elevation of the inner support bottom, and the position deviation of the bolt is not more than 3 mm; the supporting height of the template is preferably 600m below the level of the support bottom of the pre-removed inner support, and the pouring height of the concrete is the same as the height of the supporting template.
(5) Construction of a concrete force transmission belt: after the basement outer wall reaches the strength required by the design, a lower force transmission belt is arranged in the fertilizer groove, and the thickness of the lower force transmission belt is the same as that of the foundation slab; backfilling the fertilizer grooves on the outer side of the constructed outer wall, wherein the backfilling is required to be tamped layer by layer; after the steel plate bottom elevation on one side of the steel pipe at the end part is backfilled, an upper force transmission belt is arranged at the upper end of the fertilizer groove.
(6) Upward installation of a preprocessed steel pipe assembly and an assembled inclined strut: after the outer wall concrete reaches the strength required by the design, a steel pipe inclined strut end component is installed on the embedded bolt of the outer wall of the basement, and then the assembled inclined strut is fixedly connected between the upper prefabricated steel pipe component and the lower prefabricated steel pipe component.
(7) Dismantling the inner support, namely dismantling the inner support when the concrete strength of the concrete member reaches the design requirement;
(8) and constructing the main structure, namely constructing the main structure of the corresponding floor by supporting the inner support after the inner support is removed.
Further, in the step (3), before binding the reinforcing steel bars, roughening treatment is performed on the bottom plate or floor slab concrete in the range of the concrete pier.
The utility model has the advantages of:
(1) by applying the construction method, the safety of the foundation pit can be greatly improved; in the support dismantling process, the fabricated reinforcement member is arranged in the foundation pit, so that the deformation of the support structure in the support dismantling process is effectively reduced, and the peripheral buildings are prevented from being damaged due to the deformation of the foundation pit.
(2) The construction method can greatly improve the construction speed; the inclined strut system in the strut replacing component in the construction method adopts the assembled steel pipe inclined strut component, so that the material turnover efficiency is effectively improved, the assembling speed is increased, and compared with other strut replacing methods, the construction speed is obviously increased.
(3) The construction method conforms to the construction idea of green environmental protection; the inclined strut in the construction method adopts an assembled steel pipe inclined strut member which can be used in a turnover way, meanwhile, one side of the inclined strut member is provided with a concrete pier connected with a bottom plate or a floor slab, and the other side of the inclined strut member is connected with the outer wall of the structure, so that the original member is effectively utilized. The construction method integrally accords with the concept of green and environment-friendly construction.
Drawings
FIG. 1: do the utility model discloses support assembled in deep basal pit and trade the structural schematic diagram who props construction frock.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The deep foundation pit inner support assembly type support changing construction tool comprises a support pile 1, an upper force transmission belt 2, a fertilizer groove 3, a lower force transmission belt 4, an outer wall structure 5, a foundation slab 6, a pre-dismantling inner support 7, an upper pre-processed steel pipe assembly 8, an assembled inclined support 9, a lower pre-processed steel pipe assembly 10 and a concrete pier 11. The supporting pile 1 is arranged on the left side face of the whole tool; the upper force transmission belt 2, the fertilizer groove 3 and the lower force transmission belt 4 are vertically arranged in parallel, and the right side of the upper force transmission belt is vertically arranged in parallel with the outer wall structure 5. The upper force transfer belt 2 is arranged at the upper end of the fertilizer groove 3, and the fertilizer groove 3 is arranged in the middle of the upper force transfer belt 2 and the lower force transfer belt 4; the lower force transfer belt 4 is arranged at the lower end of the plain soil layer and connected with the foundation slab 6; the foundation slab 6 is arranged at the lowest end of the whole tool. The pre-dismantling support is positioned at the upper end of the whole tool. An upper prefabricated steel pipe assembly 8 is fixedly arranged on the right side of the upper end of the outer wall structure 5; the lower prefabricated steel pipe component 10 is fixed at the corresponding position of the left side surface of the concrete pier 11, is axially arranged with the upper prefabricated steel pipe component 8, and is used for installing and fixing the assembled inclined strut 9. The assembled inclined strut 9 is connected between the upper prefabricated steel pipe assembly 8 and the lower prefabricated steel pipe assembly 10. The concrete pier 11 is fixed at the corresponding position on the right side of the foundation slab 6.
The upper prefabricated steel pipe assembly 8 and the lower prefabricated steel pipe assembly 10 are respectively composed of a flange plate, a reinforcing plate and embedded bolts; the flange plate is welded with the reinforcing plate, and the embedded bolt of the upper prefabricated steel pipe assembly 8 is fixed in the outer wall structure 5; the pre-embedded bolts of the lower pre-processed steel pipe assembly 10 are fixed in the concrete pier 11.
The construction method for constructing the deep foundation pit inner support assembled type support replacement by adopting the tool comprises the following steps:
(1) positioning the concrete pier 11, namely paying off and positioning the concrete pier 11 on a cushion layer or a template according to the position required by design.
(2) Constructing the foundation slab 6 or the pre-removed inner support 7: binding the reinforcing steel bars of the foundation slab 6 or the pre-removed inner support 7 according to design requirements, binding the vertical reinforcing steel bars of the concrete pier together when the foundation slab 6 or the pre-removed inner support 7 is subjected to binding construction, and ensuring that the anchoring length of the reinforcing steel bars of the concrete pier 11 meets the design requirements. And after the steel bars are bound, pouring the foundation slab 6 or pre-removing the inner support 7 concrete.
(3) Construction of concrete pier 11: the concrete surface of the foundation slab 6 and the pre-dismantling inner support 7 is cleaned before construction, after the binding of the concrete pier 11 steel bars is finished, the concrete pier 11 concrete is poured and bolt pre-embedding is carried out, the concrete is poured in a layered mode and vibrated compactly, and after the concrete reaches the strength required by design, steel pipe inclined strut end parts are installed on the pre-embedded bolts of the concrete pier 11. And firmly installing the end part member of the lower prefabricated steel pipe assembly 10 after the construction is finished.
(4) Construction of basement exterior wall: binding reinforcing steel bars of the basement exterior wall according to design requirements, embedding bolts on the inner side of the wall after the reinforcing steel bars are bound, wherein the height of the bolt on the uppermost part is preferably 1m below the elevation of the inner support bottom, and the position deviation of the bolt is not more than 3 mm; the supporting height of the formwork is preferably 600m below the elevation of the bottom of the pre-demolished inner support 7, and the pouring height of the concrete is the same as the height of the formwork.
(5) Construction of a concrete force transmission belt: after the basement outer wall reaches the strength required by the design, a lower force transmission belt 4 is arranged in the fertilizer groove 3, and the thickness of the lower force transmission belt is the same as that of the foundation slab 6; then backfilling the fertilizer groove 3 on the outer side of the constructed outer wall, wherein the backfilling requires layered tamping; after the steel plate bottom elevation on one side of the steel pipe at the end part is backfilled, the upper end of the fertilizer groove 3 is provided with an upper force transmission belt 2.
(6) Mounting an upper prefabricated steel pipe assembly 8 and a split mounting type inclined strut 9: after the outer wall concrete reaches the strength required by the design, a steel pipe inclined strut end part member is installed on the embedded bolt of the outer wall of the basement, and then the assembled inclined strut 9 is connected and fixed between the upper preprocessed steel pipe assembly 8 and the lower preprocessed steel pipe assembly 10 to be installed completely.
(7) Dismantling the inner support, namely dismantling the inner support when the concrete strength of the concrete member reaches the design requirement;
(8) and constructing the main structure, namely constructing the main structure of the corresponding floor by supporting the inner support after the inner support is removed.
Further, in the step (3), before the steel bars are bound, the bottom plate or the floor slab concrete within the range of the concrete pier 11 is roughened.
Adopt the utility model discloses support assembled in deep basal pit and trade and support construction frock has solved the technological problem in the engineering, has accelerated to trade and has propped under the condition of construction speed, has guaranteed foundation ditch safety, has effectively reduced personnel and material. Taking a certain central project as an example, if the original designed grouting reinforcement mode is adopted, the grouting cost per 100 linear meters is about 65 ten thousand yuan, and after the construction method is adopted, the comprehensive cost per 100 linear meters is about 15 ten thousand yuan, so that compared with the original design, the construction method comprehensively saves the cost per 100 linear meters by about 50 thousand yuan, and the construction speed is greatly improved. Meanwhile, by the aid of the support dismantling reinforcing mode, deformation of a foundation pit is effectively reduced, surrounding buildings are prevented from settling, complaints of house settling caused by support dismantling are avoided, and good social benefits are obtained.
The embodiments of the present invention have been described in detail, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (2)
1. The utility model provides an interior assembled construction frock that trades of support of deep basal pit which characterized in that: the tool comprises a support pile (1), an upper force transmission belt (2), a fertilizer groove (3), a lower force transmission belt (4), an outer wall structure (5), a foundation slab (6), a pre-dismantling inner support (7), an upper pre-processing steel pipe assembly (8), an assembled inclined support (9), a lower pre-processing steel pipe assembly (10) and a concrete pier (11); the supporting pile (1) is arranged on the left side face of the whole tool; the upper force transfer belt (2), the fertilizer groove (3) and the lower force transfer belt (4) are vertically arranged in parallel, and the right side of the upper force transfer belt is vertically arranged with the outer wall structure (5); the upper force transmission belt (2) is arranged at the upper end of the fertilizer groove (3), and the fertilizer groove (3) is arranged in the middle of the upper force transmission belt (2) and the lower force transmission belt (4); the lower force transfer belt (4) is arranged at the lower end of the plain soil layer and connected with the foundation slab (6); the foundation bottom plate (6) is arranged at the lowest end of the whole tool; the pre-dismantling support is positioned at the upper end of the whole tool; an upper prefabricated steel pipe assembly (8) is fixedly arranged on the right side of the upper end of the outer wall structure (5); the lower prefabricated steel pipe component (10) is fixed at the corresponding position of the left side surface of the concrete pier (11), is axially arranged with the upper prefabricated steel pipe component (8), and is used for installing and fixing the assembled inclined strut (9); the assembled inclined strut (9) is connected between the upper preprocessed steel pipe component (8) and the lower preprocessed steel pipe component (10); the concrete pier (11) is fixed at the corresponding position on the right side of the foundation slab (6).
2. The assembled construction frock of propping that trades of support in deep basal pit of claim 1, its characterized in that: the upper preprocessed steel pipe assembly (8) and the lower preprocessed steel pipe assembly (10) are respectively composed of a flange plate, a reinforcing plate and embedded bolts; the flange plate is welded with the reinforcing plate, and the embedded bolts of the upper prefabricated steel pipe assembly (8) are fixed in the outer wall structure (5); the embedded bolt of the lower prefabricated steel pipe component (10) is fixed in the concrete pier (11).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921101512.1U CN210459229U (en) | 2019-07-15 | 2019-07-15 | Support assembled in deep basal pit and trade and prop construction frock |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921101512.1U CN210459229U (en) | 2019-07-15 | 2019-07-15 | Support assembled in deep basal pit and trade and prop construction frock |
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| CN210459229U true CN210459229U (en) | 2020-05-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318403A (en) * | 2019-07-15 | 2019-10-11 | 重庆建工第七建筑工程有限责任公司 | A kind of deep basal pit inner support assembled support replacement construction tool and construction method |
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2019
- 2019-07-15 CN CN201921101512.1U patent/CN210459229U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318403A (en) * | 2019-07-15 | 2019-10-11 | 重庆建工第七建筑工程有限责任公司 | A kind of deep basal pit inner support assembled support replacement construction tool and construction method |
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