CN214940392U - Adopt reverse construction method to carry out basement supporting construction for construction - Google Patents
Adopt reverse construction method to carry out basement supporting construction for construction Download PDFInfo
- Publication number
- CN214940392U CN214940392U CN202121793572.1U CN202121793572U CN214940392U CN 214940392 U CN214940392 U CN 214940392U CN 202121793572 U CN202121793572 U CN 202121793572U CN 214940392 U CN214940392 U CN 214940392U
- Authority
- CN
- China
- Prior art keywords
- basement
- construction
- foundation pit
- construction method
- foundation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses an adopt reverse construction method to carry out supporting construction for basement construction, including the foundation ditch and pour the basement frame beam slab of shaping in the foundation ditch, the border department from the foundation ditch has a plurality of rows of fender pile to the shaping of pouring in proper order in the soil layer in its outside, and every row of fender pile all includes a plurality of concrete piles along the length direction distribution of foundation ditch, and a plurality of horizontal support piece of fixedly connected with respectively between the basement frame beam slab and the corresponding concrete pile that is located foundation ditch border department. The utility model can form a plurality of protections at the outer side of the foundation pit, and improves the deformation resistance of the soil layer at the edge of the foundation pit and nearby the edge; in addition, the deformation of the foundation pit is resisted by using the integral rigidity of the constructed underground chamber frame beam plate, so that the deformation and collapse of the foundation pit can be effectively prevented, and the safety of a nearby constructed building or structure is guaranteed.
Description
Technical Field
The utility model relates to a construction technical field specifically is an adopt reverse construction method to carry out basement supporting construction and use.
Background
In the field of building construction, a reverse construction method is an ultra-conventional construction method and is generally adopted under special conditions of deep foundation pits, complex geology, high underground water level and the like. The underground continuous wall or other supporting structures are firstly constructed along the axis or the periphery of the basement of the building, and meanwhile, the middle supporting piles and the lattice columns are poured or driven down at the relevant positions inside the building and are used as supports for bearing the self weight of the upper structure and the construction load before the bottom plate is sealed during construction. And then excavating the earthwork to the top surface elevation of the basement of the first layer, finishing the beam slab floor structure of the layer to serve as a support with high rigidity of the supporting structure, and then excavating the earthwork downwards layer by layer and pouring underground structures of all layers until the bottom plate is sealed. Meanwhile, the floor structure of the ground layer is finished, so that conditions are created for the construction of the upper structure, and the construction of the ground structure can be simultaneously carried out layer by layer upwards. And constructing the ground up and down at the same time until the project is finished.
In the process of constructing the basement (two-layer basement structure) by adopting a reverse construction method, a top beam plate of a negative one-layer basement is usually poured in a shallow foundation pit excavated first, after the concrete strength of the top beam plate of the negative one-layer basement reaches 100% of design strength, a template of the top beam plate is dismantled, earthwork in the required space range of the negative one-layer basement is excavated downwards, a top beam plate of the negative two-layer basement is poured, after the concrete strength of the top beam plate of the negative two-layer basement reaches 100% of design strength, the template of the top beam plate of the negative two-layer basement is dismantled, earthwork in the required space range of the negative two-layer basement is excavated downwards, and a basement bottom plate is poured.
With the depth of downward excavation becoming deeper and deeper, a deeper foundation pit is gradually formed, if a built building or a structure, such as a residential area, exists near a construction site, and the distance between the construction site and the built building is small, once effective protective measures are not taken, the foundation pit is easy to deform and collapse, the safety of the built building nearby is threatened, and even serious building safety accidents are caused, so that life and property losses are caused. Therefore, it is necessary and urgent to design a supporting structure for basement construction by reverse construction.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects and shortcomings of the prior art, and provides a supporting structure for basement construction by adopting a reverse construction method, which can form a plurality of protections at the outer side of a foundation pit so as to improve the deformation resistance of soil layers at the edge of the foundation pit and nearby the foundation pit; in addition, the deformation of the foundation pit is resisted by using the integral rigidity of the constructed underground chamber frame beam plate, so that the foundation pit is prevented from being deformed greatly and even collapsed, and the safety of a nearby constructed building or structure is guaranteed.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides an adopt reverse construction method to carry out basement supporting construction for construction, including the foundation ditch and pour the basement frame beam slab of shaping in the foundation ditch, its characterized in that: and a plurality of rows of fender piles are sequentially cast and molded in the soil layer from the edge of the foundation pit to the outer side of the foundation pit, each row of fender piles comprises a plurality of concrete piles distributed along the length direction of the foundation pit, and a plurality of transverse supporting pieces are fixedly connected between the basement frame beam plate and the corresponding concrete piles positioned at the edge of the foundation pit respectively.
Furthermore, the rows of fender piles are sequentially heightened from the edge of the foundation pit to the soil layer on the outer side of the foundation pit.
Furthermore, each transverse supporting piece is respectively and fixedly connected between the beam column node of the corresponding beam plate of the basement frame and the surrounding purlin on the concrete pile.
Furthermore, all install a plurality of strain gauge sensor on every horizontal support piece, every strain gauge sensor all is connected with the master control computer.
Furthermore, each transverse supporting piece adopts an I-shaped steel beam.
Furthermore, one end of each I-shaped steel beam is anchored into the basement frame beam slab, and the other end of each I-shaped steel beam is fixedly connected with the embedded steel plate on the corresponding concrete pile.
Furthermore, each I-shaped steel beam can be detached.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model forms a plurality of rows of fender posts from the edge of the foundation pit to the soil layer outside the foundation pit by pouring in sequence, can form a plurality of protections outside the foundation pit, and improves the deformation resistance of the soil layer at the edge of the foundation pit and nearby the edge of the foundation pit; in addition, in the construction process, a plurality of transverse supporting pieces are respectively and fixedly connected between the basement frame beam slab and the corresponding concrete piles positioned at the edge of the foundation pit, the deformation of the foundation pit is resisted by utilizing the integral rigidity of the built basement frame beam slab, the foundation pit can be effectively prevented from being greatly deformed and even collapsed, and the safety of a building or a structure built nearby is guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the middle transverse supporting member of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 and 2, a supporting structure for basement construction by a reverse construction method comprises a foundation pit 1 and a basement frame beam slab 2 poured and formed in the foundation pit 1, wherein a plurality of rows of fender posts 3 are sequentially poured and formed from the edge of the foundation pit 1 to the soil layer outside the foundation pit, each row of fender posts comprises a plurality of concrete posts distributed along the length direction of the foundation pit, and a plurality of transverse supporting pieces 4 are fixedly connected between the basement frame beam slab 2 and the corresponding concrete posts located at the edge of the foundation pit 1 respectively.
The utility model discloses in, a plurality of rows of fender pile 3 increase in proper order in the soil layer in its outside from the border department of foundation ditch 1. Therefore, when multiple protection layers are formed on the outer side of the foundation pit 1, a protection structure with gradient can be formed, and the deformation resistance of the soil layer at the edge of the foundation pit 1 and nearby the edge is further improved.
The utility model discloses in, every horizontal support piece difference fixed connection encloses between purlin 6 on the beam column node 21 of corresponding basement frame beam slab and the concrete pile. From this, the installation of every horizontal support piece of being convenient for, also the later stage of being convenient for is demolishd, and can not lead to the fact destruction to basement frame beam slab 2 and concrete pile.
The utility model discloses in, all install a plurality of strain sensor 5 on the every horizontal support piece, every strain sensor all is connected with main control computer (not shown in the figure, lower with). Therefore, each strain type sensor respectively detects stress change data of the transverse supporting piece and transmits the stress change data to the main control computer, the main control computer performs related calculation and analysis to obtain the deformation condition of the edge of the foundation pit 1, scientific reference basis is provided for field construction, and construction safety is guaranteed.
The utility model discloses in, every horizontal support piece all adopts the I-shaped steel roof beam, and lateral rigidity is big, and bending resistance is strong, resistance foundation ditch that can be better warp.
Correspondingly, one end of each I-shaped steel beam is anchored into the basement frame beam slab 3, and the other end of each I-shaped steel beam is fixedly connected with the embedded steel plate on the corresponding concrete pile.
From this, every I-shaped girder steel all can demolish (cut off) in the construction later stage, and can not produce destructive influence to basement frame beam slab 3 and corresponding concrete pile.
The invention is further described below with reference to the accompanying drawings:
during construction, according to reverse construction method construction basement, casting moulding goes out basement frame beam slab 2, bears one deck basement and/or the major structure who bears two layers of basement promptly, because the utility model discloses border department from the foundation ditch is to a plurality of rows of fender pile of casting moulding in proper order in the soil layer in its outside, consequently can form multichannel protection in the outside of foundation ditch 1, has improved the anti deformability of 1 border department in foundation ditch and its near soil layer, even along with the degree of depth of excavation downwards more and more dark, forms darker foundation ditch gradually, also can not cause the hidden danger that foundation ditch 1 collapses.
In the construction process, the basement frame beam plates 2 are molded by casting, namely the main body structure of each layer of basement is molded by casting, after the design strength reaches 100%, a plurality of transverse supporting pieces (I-shaped steel beams) 4 are respectively and fixedly connected between the basement frame beam plates 2 and the corresponding purlins 6 of the concrete piles positioned at the edge of the foundation pit 1, the established basement frame beam plates are utilized to transversely support the edge of the foundation pit for resisting the deformation of the foundation pit, and the deformation and collapse of the foundation pit can be effectively prevented.
Meanwhile, each strain type sensor respectively detects stress change data of the transverse supporting piece and transmits the stress change data to the main control computer, and the main control computer performs related calculation and analysis to obtain the deformation condition of the edge of the foundation pit 1, so that scientific reference basis is provided for field construction, and the construction safety is guaranteed.
After the outer wall and the waterproof construction of the whole basement are completed, cutting (dismantling) operation is carried out on two ends of each I-shaped steel beam, each I-shaped steel beam is dismantled, and finally backfilling is carried out.
Although the present description is described in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should be able to integrate the description as a whole, and the embodiments can be appropriately combined to form other embodiments as will be understood by those skilled in the art.
Therefore, the above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (7)
1. The utility model provides an adopt reverse construction method to carry out basement supporting construction for construction, including the foundation ditch and pour the basement frame beam slab of shaping in the foundation ditch, its characterized in that: and a plurality of rows of fender piles are sequentially cast and molded in the soil layer from the edge of the foundation pit to the outer side of the foundation pit, each row of fender piles comprises a plurality of concrete piles distributed along the length direction of the foundation pit, and a plurality of transverse supporting pieces are fixedly connected between the basement frame beam plate and the corresponding concrete piles positioned at the edge of the foundation pit respectively.
2. The supporting structure for basement construction by the reverse construction method according to claim 1, wherein: and the rows of fender piles are sequentially heightened from the edge of the foundation pit to the soil layer on the outer side of the foundation pit.
3. The supporting structure for basement construction by the reverse construction method according to claim 1, wherein: each transverse supporting piece is fixedly connected between the beam column node of the corresponding underground chamber frame beam plate and the surrounding purlin on the concrete pile.
4. The supporting structure for basement construction by the reverse construction method according to claim 1, wherein: every horizontal support piece all installs a plurality of strain gauge sensor on, every strain gauge sensor all is connected with the master control computer.
5. The supporting structure for basement construction by the reverse construction method according to claim 4, wherein: each transverse supporting piece adopts an I-shaped steel beam.
6. The supporting structure for basement construction by the reverse construction method according to claim 5, wherein: one end of each I-shaped steel beam is anchored into the basement frame beam plate, and the other end of each I-shaped steel beam is fixedly connected with the embedded steel plate on the corresponding concrete pile.
7. The supporting structure for basement construction by the reverse construction method according to claim 6, wherein: each I-shaped steel beam can be dismantled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121793572.1U CN214940392U (en) | 2021-08-03 | 2021-08-03 | Adopt reverse construction method to carry out basement supporting construction for construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121793572.1U CN214940392U (en) | 2021-08-03 | 2021-08-03 | Adopt reverse construction method to carry out basement supporting construction for construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214940392U true CN214940392U (en) | 2021-11-30 |
Family
ID=79068424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121793572.1U Active CN214940392U (en) | 2021-08-03 | 2021-08-03 | Adopt reverse construction method to carry out basement supporting construction for construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214940392U (en) |
-
2021
- 2021-08-03 CN CN202121793572.1U patent/CN214940392U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212641473U (en) | Foundation pit supporting structure adjacent to existing building | |
| CN111236241B (en) | Weak water-rich stratum subway foundation pit reinforcing excavation method based on half-cover excavation method | |
| CN205975658U (en) | Steel platform tower crane foundation | |
| CN105951869A (en) | Construction method of steel latticework column tower crane foundation for underground garage without reserving construction joints | |
| CN110777806B (en) | Multi-connecting-rod plane frame permanent supporting structure and construction process thereof | |
| CN104631469B (en) | For deep big foundation pit without post reinforced concrete support framework and building method thereof | |
| CN113550322A (en) | Enclosure system next to deep and shallow foundation pit and construction method | |
| CN109403339B (en) | Deep foundation pit composite supporting structure combining double-row piles with center island method and supporting method thereof | |
| CN209924997U (en) | Anti-floating construction structure for crossing existing subway tunnel on urban tunnel | |
| CN208219694U (en) | A kind of prefabricated barricade | |
| CN113216205A (en) | Partition wall support conversion method in deep foundation pit and foundation pit dividing construction | |
| CN210263073U (en) | Supporting construction that adjacent foundation ditch synchronous excavation was asynchronously backfilled | |
| CN214940392U (en) | Adopt reverse construction method to carry out basement supporting construction for construction | |
| CN110847188A (en) | Ultra-deep foundation pit earth excavation platform structure and construction method thereof | |
| CN106988337B (en) | It is a kind of for reducing the reinforcement means of bar shaped shallow foundation house differential settlement | |
| CN213477808U (en) | Structure is found fast to steel construction underground garage | |
| CN205000340U (en) | Regard as foundation ditch of vertical cantilever fulcrum to go along with sb. to guard him system with underground continuous wall | |
| CN109138484B (en) | Construction method for connecting jacking layer-added concrete-filled steel tubular column with foundation | |
| CN210459300U (en) | Enclosure structure for covering and digging station | |
| CN210712864U (en) | Deep foundation pit supporting system of Larsen steel sheet pile and cement mixing pile for soft soil field | |
| CN112942377A (en) | Novel support shear-resistant structure and construction method thereof | |
| CN102322065B (en) | Bottom channel inner support of foundation pit supporting structure | |
| CN217105109U (en) | Supporting construction of deep basal pit synchronous construction under people's foot bridge | |
| CN216041201U (en) | Earlier prop and dig double-deck diagonal bracing foundation ditch enclosure system afterwards | |
| CN113931228B (en) | Material platform construction method for basement construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |