CN215948213U - Be used for deep pipe gallery structure and major structure to build back and support promotion structure - Google Patents
Be used for deep pipe gallery structure and major structure to build back and support promotion structure Download PDFInfo
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- CN215948213U CN215948213U CN202122429270.2U CN202122429270U CN215948213U CN 215948213 U CN215948213 U CN 215948213U CN 202122429270 U CN202122429270 U CN 202122429270U CN 215948213 U CN215948213 U CN 215948213U
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- 230000005540 biological transmission Effects 0.000 claims abstract description 31
- 239000002689 soil Substances 0.000 claims abstract description 7
- 238000010276 construction Methods 0.000 claims description 36
- 238000005507 spraying Methods 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 101150054854 POU1F1 gene Proteins 0.000 description 11
- 238000009412 basement excavation Methods 0.000 description 8
- 102000001999 Transcription Factor Pit-1 Human genes 0.000 description 7
- 108010040742 Transcription Factor Pit-1 Proteins 0.000 description 7
- 238000013461 design Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
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- 239000011150 reinforced concrete Substances 0.000 description 1
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Abstract
The utility model provides a be used for dark piping lane structure to return with major structure and build and support promotion structure, including being located major structure foundation pit and dark piping lane foundation pit, be equipped with main part envelope in the soil body all around of major structure foundation pit, main part bottom plate structure is at the disconnection of dark piping lane foundation pit within range, main part bottom plate structure is higher than piping lane envelope, the top of supporting in the piping lane is equipped with the first way of piping lane and supports, add power transmission structure between the tip of the critical dark piping lane foundation pit of main part bottom plate structure and the top outside of the first way interior support of piping lane, power transmission structure includes piping lane short column, piping lane short column sets up and rather than fixed connection along the top interval of piping lane guan liang, the inboard outside of tight piping lane short column in top of main part bottom plate structure. According to the utility model, the force transmission component is arranged between the main structure bottom plate and the first horizontal support of the pipe gallery to form a transverse force transmission system, so that the main structure bottom plate structure in the main structure foundation pit isolated by the deep foundation pit and the pipe gallery foundation pit is temporarily closed, and the deep pipe gallery and the main structure are constructed while being rebuilt.
Description
Technical Field
The utility model belongs to foundation pit engineering, and particularly relates to a back-building supporting and lifting structure for a deep pipe gallery structure and a main body structure and a construction method thereof.
Background
In recent years, with the acceleration of the construction process of infrastructure of China, the underground space of the building develops towards the complexity and diversification. The underground space development area is huge, the surrounding environment is relatively complex, the foundation pit engineering can be implemented in a partition mode when one-time forming excavation is not allowed, and the foundation pit of each partition is constructed step by step according to the design and construction period requirements. The construction is carried out simultaneously in a plurality of areas, and reasonable excavation, supporting, structure building and support dismantling of different areas are important guarantees for guaranteeing the safety and rapid construction of foundation pit groups.
Some main structure foundation ditch interior can exist because of the designing requirement indulge and wear, cross or the partial pipe gallery deep basal pit that passes, because pipe gallery deep basal pit does not possess the condition of doing the construction in the opposite directions, the whole of being in the same direction as doing the construction and will hindering the main structure bottom plate of pipe gallery deep basal pit is taken shape, can not form effectual support system, cause main structure must wait for the construction of pipe gallery completion back construction, this will prolong and influence the time limit for a project, and the effective back cover of main structure foundation pit can not form fast, be unfavorable for the safety of foundation ditch. Therefore, how to realize excavation and the main structure of piping lane deep basal pit and construct when building back, can shorten the project time limit for a project simultaneously is the problem that awaits the solution urgently.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a support lifting structure for the back construction of a deep pipe gallery structure and a main body structure, and aims to solve the technical problems that a pipe gallery deep foundation pit exists in a main body structure foundation pit, the integral forming of a main body structure bottom plate is hindered by the sequential construction of the pipe gallery deep foundation pit, an effective support system cannot be formed, the main body structure needs to be constructed after the completion of the pipe gallery construction, and the construction period is prolonged; and the technical problems that the foundation pit with the main structure cannot form an effective back cover quickly and is not beneficial to the safety of the foundation pit are solved.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a support and lifting structure for the back construction of a deep pipe gallery structure and a main body structure comprises a main body structure foundation pit and a deep pipe gallery foundation pit which is positioned in the main body structure foundation pit and is arranged downwards from the bottom of the main body structure foundation pit, a main body enclosure structure is arranged in the soil body around the main body structure foundation pit, a pipe gallery enclosure structure is arranged in the soil body around the deep pipe gallery foundation pit,
the main body structure foundation pit is internally provided with a constructed main body bottom plate structure, the main body bottom plate structure comprises a constructed main body bottom plate cushion layer and a main body bottom plate from bottom to top, the main body bottom plate structure is disconnected within the range of the deep pipe gallery foundation pit, the main body bottom plate structure is higher than the pipe gallery enclosure structure, the pipe gallery enclosure structure comprises a pipe gallery inner support, the top of the pipe gallery inner support is provided with a pipe gallery first inner support, a force transmission structure is additionally arranged between the end part of the main body bottom plate structure critical deep pipe gallery foundation pit and the outer side of the top of the pipe gallery first inner support, the main body bottom plate structure is communicated with the pipe gallery first inner support through the force transmission structure to form a force transmission system, and the force transmission system is disconnected with the main body bottom plate structure within the range of the deep pipe gallery foundation pit,
the utility model discloses a pipe gallery enclosure structure, including a pipe gallery enclosure structure, the power transmission structure is interim component, interim component includes a set of piping lane short column that adds along piping lane enclosure structure's top, piping lane enclosure structure still includes piping lane enclosure combination pile and piping lane guan liang, the top interval of piping lane short column along piping lane guanliang sets up and rather than fixed connection, the outside of the inboard tight piping lane short column in top of main part bottom plate structure.
The both ends of interior support of the first way of piping lane are fixed connection respectively between both sides piping lane short column.
Vertical promotion setting is supported in the piping lane first way, the top elevation height of the top elevation of piping lane short column, the first way interior support of piping lane and the top elevation parallel and level of main part bottom plate structure.
And the pipe gallery short columns and the pipe gallery enclosure combined piles are in one-to-one correspondence from top to bottom.
The main body bottom plate structure forms a force transmission system through the force transmission structure and through the first inner support of the pipe gallery in the pipe gallery crown beam communication pipe gallery.
The power transmission path of the power transmission system is a main body bottom plate structure, a pipe gallery short column and a first inner support of the pipe gallery.
The top that each piping lane enclosure combination stake is connected to piping lane crown beam forms integratively.
The pipe gallery enclosure combined pile is a combination of a rotary excavating pile and a rotary spraying pile, wherein the rotary excavating pile is a stressed pile, and the rotary spraying pile is located between the rotary excavating piles to form a water stopping pile.
Compared with the prior art, the utility model has the following characteristics and beneficial effects:
according to the utility model, the force transmission component is arranged between the main structure bottom plate and the first horizontal support of the pipe gallery to form a transverse force transmission system, so that the main structure bottom plate structure in the main structure foundation pit separated by the deep foundation pit and the pipe gallery foundation pit is temporarily closed, the deep pipe gallery and the main structure can be constructed at the same time, the control period is effectively saved, and the construction cost can be reduced.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic plan view of a subterranean structure of the present invention.
Fig. 2 is a schematic side view of a subterranean structure of the present invention.
FIG. 3 is a side view of an embodiment of a force transfer structure.
Fig. 4 is a schematic top view of the structure of fig. 3.
Reference numerals: 1-main body structure foundation pit, 2-deep pipe gallery foundation pit, 3-main body enclosure structure, 31-main body enclosure combined pile, 32-main body crown beam, 33-main body first inner support, 34-main body second inner support, 35-main body third inner support, 4-pipe gallery enclosure structure, 41-pipe gallery first inner support, 42-pipe gallery enclosure combined pile, 421-rotary digging pile, 422-rotary spraying pile, 43-pipe gallery crown beam, 44-pipe gallery second inner support, 5-main body bottom plate cushion layer, 6-main body bottom plate, 7-force transmission structure, 72-pipe gallery short column, 8-negative one-floor structure, 9-main body top plate structure, 10-deep pipe gallery bottom plate structure and 11-deep pipe gallery top plate structure.
Detailed Description
Referring to fig. 1-2, a pipe gallery deep foundation pit is longitudinally arranged in a main structure foundation pit 1, and the elevation of the pipe gallery deep foundation pit is lower than that of the main structure foundation pit 1.
Treat that the major structure of being under construction is the underground structure, by supreme main part bottom plate structure, burden one deck floor structure 8 and the main part roof structure 9 of including in proper order down, deep-pipe gallery structure includes deep-pipe gallery bottom plate structure 10 and deep-pipe gallery roof structure 11.
The planned construction process is as follows according to the difference of relative degree of depth with main part envelope: the vertical enclosure of the main structure foundation pit 1, namely the main enclosure combined pile 31, the main body crown beam 32 and the horizontal support, is constructed firstly. Three horizontal supports are designed in the main structure foundation pit 1, and are respectively a main body first inner support 33, a main body second inner support 34 and a main body third inner support 35. After the main structure foundation pit 1 is excavated to the pit bottom, the vertical enclosures of the pipe gallery deep foundation pit are constructed, namely the pipe gallery enclosure combined pile 42, the pipe gallery crown beam 43 and the horizontal supports, two horizontal supports are designed in the pipe gallery deep foundation pit, and are respectively the first inner support 41 of the pipe gallery and the second inner support 44 of the pipe gallery, and the pit bottom is gradually excavated to the pipe gallery deep foundation pit. Then upwards along doing the deep piping lane structure to demolish twice horizontal brace in the deep piping lane foundation ditch in proper order, seal main part bottom plate structure afterwards.
The elevation of main part bottom plate structure is located the elevation top of the first interior support of piping lane, and both are not on same elevation. The first floor structure is located between the third inner support and the second inner support of the main body, and the top plate structure of the main body is located at the position of the first inner support of the main body. The main structure construction and the support change sequence are that firstly the main third-way inner support is dismantled in the same direction, the first-way inner support of the main body is dismantled in the same direction by the negative first-floor structure, then the main roof structure is constructed, and finally the main second-way inner support is dismantled in a stuffy mode.
By adopting the construction scheme, the main structure needs to be built again and can be started after the construction of the deep pipe gallery structure is completed, so that the construction period of the whole project is seriously delayed, and the time is about three months. If can be so that excavation deep piping lane foundation ditch and major structure back build can be under construction simultaneously, then can be fundamental shorten the construction progress.
In this scheme, the main part structure returns and builds the reason that can not implement with deep piping lane foundation ditch excavation is that deep piping lane foundation ditch vertically link up in main part structure foundation ditch 1, causes the bottom plate of main part structure at the horizontal disconnection in deep piping lane foundation ditch position, and main part bottom plate structure and the first interior support of piping lane can not form integrative effectual support system, can not support with main part third during the construction that makes progress promptly and form and tear open and trade the support system, and the main part third is said and is supported and can not demolish, and then leads to the negative floor structure can not implement. Therefore, the main body bottom plate structure can not transversely run through to form an effective force transmission system, and the main reason that the deep pipe gallery foundation pit excavation and the main body structure back construction can not be simultaneously implemented is caused. Meanwhile, the first horizontal support of the deep pipe gallery foundation pit and the bottom plate of the main body structure are not at the same elevation, so that additional measures or structures are needed to be adopted, and the bottom plate can transversely transfer force.
The embodiment is shown in fig. 3-4, and a support lifting structure for the deep pipe gallery structure and the main structure in a back-building mode comprises a main structure foundation pit 1 and a deep pipe gallery foundation pit 22 which is located in the main structure foundation pit 1 and is arranged downwards from the bottom of the main structure foundation pit 1, wherein a main enclosure structure 3 is arranged in the soil body around the main structure foundation pit 1, and a pipe gallery enclosure structure 4 is arranged in the soil body around the deep pipe gallery foundation pit 2.
Be equipped with the major structure foundation pit of having under construction in 1, the major structure foundation pit is by supreme major structure foundation pit bed course 5 and the major structure foundation pit 6 of having under construction, and the major structure foundation pit breaks off at deep piping lane foundation pit 2 within ranges, the major structure foundation pit is higher than piping lane envelope structure 4, piping lane envelope structure 4 includes the piping lane interior support, the piping lane interior support that the support includes piping lane envelope structure 4's top is equipped with 41, it passes force transmission structure 7 to add between the tip of the critical deep piping lane foundation pit of major structure and the top outside of the first interior 41 of piping lane, and the major structure foundation pit forms the biography power system through passing force transmission structure 7 intercommunication piping lane interior support 41, the major structure foundation pit of the closed deep piping lane foundation pit 2 within ranges disconnection of power system.
Piping lane envelope 4 still includes piping lane enclosure combination pile 42 and piping lane crown beam 43, the top that each piping lane enclosure combination pile 42 is connected to piping lane crown beam 43 forms integratively. The pipe gallery enclosure combined pile 42 is a combination of a rotary excavating pile 421 and a rotary spraying pile 422, wherein the rotary excavating pile is a stressed pile, and the rotary spraying pile is located between the rotary excavating piles to form a water stopping pile.
In this embodiment, promote the elevation of pipe gallery first way interior support to the elevation height of main part bottom plate structure, form horizontal biography power system, support for interim component in the examination pipe gallery first way, and adopt in the former scheme of deciding in the same direction as the construction order of tearing open, tear open the pipe gallery first way interior support back construction pipe gallery roof structure promptly. Therefore, the scheme of supporting the elevation in the first pass of the lifting pipe gallery is provided. In this scheme, the first way of pipe gallery is supported and main part bottom plate structure on same elevation, with the help of the first way of pipe gallery is supported, and main part bottom plate structure can form horizontal biography power system, does not have the slant to pass power component, and main part bottom plate structure atress etc. is better, does not increase bed course thickness, does not also influence the excavation depth of foundation ditch. However, the building envelope of the deep pipe gallery foundation pit is considered to be constructed, the elevation of the first inner support of the pipe gallery is improved, and the top elevation of the building envelope must be improved. Therefore, the scheme of adding the temporary vertical member according to the position of the vertical support of the main body enclosure structure is provided.
Constructing a main body enclosure combined pile 31 and a main body crown beam 32 from the ground surface according to design;
step two, excavating a main structure foundation pit 1 in the main body enclosure structure 3, and constructing a main body first inner support 33, a main body second inner support 34 and a main body third inner support 35 layer by layer from top to bottom during downward excavation;
constructing a pipe gallery enclosure combined pile 42 and a pipe gallery crown beam 43 from the pit bottom of the main structure foundation pit 1 and the range of the deep pipe gallery structure;
fourthly, excavating a deep pipe gallery foundation pit 2 in the pipe gallery enclosure structure 4, and constructing a first inner support of the pipe gallery when excavating downwards;
constructing a main body bottom plate structure according to design, wherein the main body bottom plate structure is disconnected by the deep pipe gallery foundation pit 2 at the position of the critical deep pipe gallery foundation pit 2;
constructing a force transmission structure 7 between the main body bottom plate structure and the top of the first inner support 41 of the pipe gallery according to design, completing a force transmission system path between the main body bottom plate structure and the first inner support 41 of the pipe gallery, and closing the disconnected main body bottom plate structure within the range of the deep pipe gallery foundation pit 2;
the construction steps of the sixth step are as follows:
step a, specially designing and checking the pipe gallery short column 72, wherein the specially designing and checking comprises the connecting node of the pipe gallery short column 72 and the pipe gallery crown beam 43, the transmission of the supporting force between the main body bottom plate structure and the pipe gallery short column 72 and the height design of the pipe gallery short column 72; also comprises the checking of the integral deformation, stress and stability of the pipe gallery enclosure structure 4,
b, continuously casting a reinforced concrete pipe gallery short column 72 on the top of the original pipe gallery crown beam 43 in situ, wherein the steel bars of the pipe gallery short column 72, the steel bars of the pipe gallery crown beam 43 and the steel bars of the main body bottom plate structure are respectively anchored;
and c, correspondingly and fixedly connecting the two ends of the first-way inner support 41 of the pipe gallery between the short columns 72 of the pipe gallery.
Seventhly, simultaneously performing downward construction of the deep pipe gallery structure and upward construction of the main body structure under the guarantee of the force transmission system;
wherein the construction sequence of major structure does: sequentially dismantling a third support of the main body, constructing a negative first-floor structure 8, sequentially dismantling a first inner support 33 of the main body, constructing a top plate structure 9 of the main body and tightly dismantling a second support of the main body;
the construction sequence of deep pipe gallery structure does: continuously downwards excavating a second tunnel inner support 44 of the construction pipe gallery, constructing a bottom plate structure 10 of the deep pipe gallery, dismantling the second tunnel inner support 44 of the pipe gallery, and constructing a top plate structure 11 of the deep pipe gallery;
step eight, dismantling a force transmission system: selecting whether to remove the force transmission structure 7 and the first inner support 41 of the pipe gallery according to requirements;
and step nine, closing the main body bottom plate structure.
Claims (7)
1. The utility model provides a be used for deep pipe gallery structure and major structure to build back and support promotion structure, its characterized in that: comprises a main structure foundation pit (1) and a deep pipe gallery foundation pit (2) which is positioned in the main structure foundation pit (1) and is arranged downwards from the bottom of the main structure foundation pit (1), wherein a main body enclosure structure (3) is arranged in the soil body around the main structure foundation pit (1), a pipe gallery enclosure structure (4) is arranged in the soil body around the deep pipe gallery foundation pit (2),
the construction method is characterized in that a constructed main body bottom plate structure is arranged in a main body structure foundation pit (1), the main body bottom plate structure comprises a constructed main body bottom plate cushion layer (5) and a main body bottom plate (6) from bottom to top, the main body bottom plate structure is disconnected within the range of a deep pipe gallery foundation pit (2), the main body bottom plate structure is higher than a pipe gallery enclosure structure (4), the pipe gallery enclosure structure (4) comprises a pipe gallery inner support, the pipe gallery inner support comprises a pipe gallery first inner support (41) arranged at the top of the pipe gallery enclosure structure (4), a force transmission structure (7) is additionally arranged between the end part of the main body bottom plate structure critical deep pipe gallery foundation pit (2) and the top outer side of the pipe gallery first inner support (41), the main body bottom plate structure is communicated with the pipe gallery first inner support (41) through the force transmission structure (7) to form a force transmission system, and the main body bottom plate structure is disconnected within the range of the deep pipe gallery foundation pit (2) of the force transmission system,
power transmission structure (7) are interim components, interim components include a set of piping lane short column (72) that add along the top of piping lane envelope structure (4), piping lane envelope structure (4) still include piping lane enclosure combination pile (42) and piping lane guan liang (43), piping lane short column (72) set up and rather than fixed connection along the top interval of piping lane guanliang (43), the outside of the tight piping lane short column (72) in inboard top of main part bottom plate structure.
2. The deep pipe gallery structure and main body structure return building supporting and lifting structure according to claim 1, characterized in that: the two ends of the first inner support (41) of the pipe gallery are respectively and fixedly connected between the pipe gallery short columns (72) on the two sides.
3. The deep pipe gallery structure and main body structure return building supporting and lifting structure according to claim 2, characterized in that: support (41) vertical lift setting in the first way of piping lane, the top elevation of support (41) in the top elevation of piping lane short column (72), piping lane first way and the top elevation parallel and level of main part bottom plate structure.
4. The deep pipe gallery structure and main body structure return building supporting and lifting structure according to claim 2, characterized in that: and the pipe gallery short columns (72) correspond to the pipe gallery enclosure combined piles (42) one by one from top to bottom.
5. The deep pipe gallery structure and main body structure return building supporting and lifting structure according to any one of claims 2 to 4, wherein: the force transfer path of the force transfer system is a main body bottom plate structure, a pipe gallery short column (72) and a first inner support (41) of the pipe gallery.
6. The deep pipe gallery structure and main body structure return building supporting and lifting structure according to claim 1, characterized in that: the top that each piping lane enclosure combination stake (42) is connected to piping lane crown beam (43) forms an organic whole.
7. The deep pipe gallery structure and main body structure return building supporting and lifting structure according to claim 6, wherein: the pipe gallery enclosure combined pile (42) is a combination of a rotary excavating pile (421) and a rotary spraying pile (422), wherein the rotary excavating pile is a stressed pile, and the rotary spraying pile is positioned between the rotary excavating piles to form a water stopping pile.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122429270.2U CN215948213U (en) | 2021-10-09 | 2021-10-09 | Be used for deep pipe gallery structure and major structure to build back and support promotion structure |
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| CN202122429270.2U CN215948213U (en) | 2021-10-09 | 2021-10-09 | Be used for deep pipe gallery structure and major structure to build back and support promotion structure |
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