CN215948214U - Be used for deep pipe gallery structure and major structure to build slant biography power structure again - Google Patents
Be used for deep pipe gallery structure and major structure to build slant biography power structure again Download PDFInfo
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- CN215948214U CN215948214U CN202122429504.3U CN202122429504U CN215948214U CN 215948214 U CN215948214 U CN 215948214U CN 202122429504 U CN202122429504 U CN 202122429504U CN 215948214 U CN215948214 U CN 215948214U
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- 230000005540 biological transmission Effects 0.000 claims abstract description 57
- 238000010276 construction Methods 0.000 claims description 35
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000012546 transfer Methods 0.000 claims description 12
- 239000004567 concrete Substances 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 239000002689 soil Substances 0.000 claims description 6
- 239000011150 reinforced concrete Substances 0.000 claims description 3
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- 108010040742 Transcription Factor Pit-1 Proteins 0.000 description 7
- 238000009412 basement excavation Methods 0.000 description 7
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- 238000013461 design Methods 0.000 description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 4
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Abstract
The utility model provides a be used for dark piping lane structure and major structure to return and build slant biography power structure, including being located major structure foundation ditch and dark piping lane foundation ditch, the major structure bottom plate structure is in the disconnection of dark piping lane foundation ditch within range, the top of piping lane interior support is equipped with the first interior support of piping lane, add between the tip of the critical dark piping lane foundation ditch of major structure and the top outside of the first interior support of piping lane and have passed the power constructional plate, the outer terminal surface of slant biography power board and the interior terminal surface fixed connection of major structure bottom plate, the interior terminal surface of slant biography power board and the outer terminal surface fixed connection of piping lane guan liang, the major structure bottom plate structure forms the biography power system through the first interior support of biography power structure intercommunication piping lane. 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, and the control period is effectively saved.
Description
Technical Field
The utility model belongs to foundation pit engineering, and particularly relates to a back-building oblique force transmission structure for a deep pipe gallery structure and a main body structure.
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 construction for building back an inclined force transfer structure for a deep pipe gallery structure and a main body structure, and aims to solve the technical problems that the pipe gallery deep foundation pit exists in the main body structure foundation pit, the integral forming of a main body structure bottom plate is hindered by the smooth construction of the pipe gallery deep foundation pit, an effective supporting 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 diagonal force transmission 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 base level height of main part bottom plate bed course is higher than the top elevation of piping lane crown beam, power transmission structure is interim component, interim component is including being slant biography power board, the outer terminal surface of slant biography power board and the inner terminal surface fixed connection of main part bottom plate, the inner terminal surface of slant biography power board and the outer terminal surface fixed connection of piping lane crown beam.
The slant dowel steel is led to the length setting respectively along the top both sides of deep piping lane foundation ditch.
The slant dowel plate is reinforced concrete structure, and the reinforcing bar both ends and main part bottom plate reinforcing bar and piping lane crown beam reinforcing bar of slant dowel plate are all anchored.
The concrete label of the oblique dowel plate is not lower than that of the concrete of the main body bottom plate.
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.
Piping lane envelope still includes piping lane enclosure combination pile and piping lane guan liang, the top that each piping lane enclosure combination pile is connected to piping lane guanliang forms integratively, the both ends of the first interior support of piping lane prop up between the piping lane guanliang of both sides to the first interior support of piping lane is the same and the top surface parallel and level with the elevation of piping lane guanliang.
The power transmission path of the power transmission system is a main body bottom plate, an oblique power transmission plate, a pipe gallery crown beam and a first inner support of the pipe gallery.
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 partial force enlarged view 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, 71-oblique force transmission plate, 8-negative one-layer 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 the oblique force transmission structure for the deep pipe gallery structure and the main structure comprises a main structure foundation pit 1 and a deep pipe gallery foundation pit 22 which is arranged 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 around the main structure foundation pit 1, and a pipe gallery enclosure structure 4 is arranged in the soil 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 structure 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 both ends of support 41 in the first way of piping lane prop up between the piping lane crown beam 43 of both sides to the elevation of support 41 in the first way of piping lane is the same and the top surface parallel and level with piping lane crown beam 43, main part bottom plate structure passes through power transmission structure 7 and communicates the first way of support 41 formation power transmission system of piping lane through piping lane crown beam 43.
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.
The base level height of main part bottom plate bed course 5 is higher than the top elevation of piping lane guan liang 43, power transmission structure 7 is interim component, interim component includes for slant dowel steel 71, slant dowel steel 71 leads to the length setting respectively along the top both sides of dark piping lane foundation ditch 2, the outer terminal surface of slant dowel steel 71 and the interior terminal surface fixed connection of main part bottom plate 6, the interior terminal surface of slant dowel steel 71 and the outer terminal surface fixed connection of piping lane guanliang 43, slant dowel steel 71 is reinforced concrete structure, and slant dowel steel 71's reinforcing bar both ends and 6 reinforcing bars of main part bottom plate and piping lane guanliang 43 reinforcing bars all anchor, and slant dowel steel 71's concrete label is higher than the label of 6 concrete of main part bottom plate, and the biography power path of power transmission system is main part bottom plate 6, slant dowel steel 71, piping lane guanliang 43 and the first way interior support 41 of piping lane.
In this embodiment, the scheme of applying the temporary force transfer member between the main body bottom plate and the first support of the pipe gallery is provided. The oblique force transmission component of the force transmission component is characterized in that the elevation of the main body bottom plate structure is different from the elevation of the inner support in the first channel of the pipe gallery. The concrete strength, reinforcing bars, thickness and width of the oblique force transmission component can be the same as those of the main body bottom plate structure, the load borne by the main body bottom plate structure is transmitted to the first inner support of the pipe gallery through the oblique force transmission component, and the balance among the component distance, the component section size and the bottom plate stress is realized through the checking calculation of the bearing capacity of the oblique force transmission component.
Referring to fig. 4, the stress F and the horizontal component F of the oblique force transmission component are checked1Vertical component force F2And indexes such as stress N of the first inner support of the pipe gallery.
The construction method for the deep pipe gallery structure and the main body structure to build the inclined force transmission structure comprises the following construction steps:
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 oblique force transfer plate 71, including checking the bearing capacity of the oblique force transfer plate 71, so as to ensure the arrangement interval, the section size and the stress balance of the oblique force transfer plate 71; the stress balance is the stress balance between the inclination angle of the oblique force transmission plate 71 and the main body bottom plate 6;
and b, paving the reinforcing steel bars in the oblique force transfer plate 71 according to the design, anchoring the reinforcing steel bars with the reinforcing steel bars of the main body bottom plate 6 and the reinforcing steel bars of the pipe gallery crown beam 43, and pouring concrete of the oblique force transfer plate 71, so that the two ends of the oblique force transfer plate 71 are respectively connected with the main body bottom plate 6 and the pipe gallery crown beam 43.
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 (9)
1. The utility model provides a be used for dark piping lane structure and major structure to build slant biography power structure back, 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,
the bottom elevation of main part bottom plate bed course (5) is higher than the top elevation of piping lane crown beam (43), power transmission structure (7) are interim components, interim components are including being slant dowel plate (71), the outer terminal surface of slant dowel plate (71) and the inner terminal surface fixed connection of main part bottom plate (6), the inner terminal surface of slant dowel plate (71) and the outer terminal surface fixed connection of piping lane crown beam (43).
2. The oblique force transmission structure for deep pipe gallery structure and main body structure building back of claim 1, characterized in that: the oblique force transfer plates (71) are respectively arranged in a through length mode along two sides of the top of the deep pipe gallery foundation pit (2).
3. The oblique force transmission structure for deep pipe gallery structure and main body structure building back of claim 1, characterized in that: the slant dowel plate (71) is of a reinforced concrete structure, and two ends of a steel bar of the slant dowel plate (71) are anchored with a steel bar of the main body bottom plate (6) and a steel bar of the pipe gallery crown beam (43).
4. The inclined force transmission structure for the deep pipe gallery structure and the main body structure in the building process comprises the following steps: the mark number of the concrete of the oblique force transfer plate (71) is not lower than that of the concrete of the main body bottom plate (6).
5. The oblique force transmission structure for deep pipe gallery structure and main body structure building back of claim 1, characterized in that: the force transmission path of the force transmission system is a main body bottom plate (6), an oblique force transmission plate (71), a pipe gallery crown beam (43) and a first inner support (41) of the pipe gallery.
6. The oblique force transmission structure for deep pipe gallery structure and main body structure building back of claim 1, characterized in that: piping lane envelope structure (4) still include 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.
7. The inclined force transmission structure for the deep pipe gallery structure and the main body structure in the building process comprises the following steps: the two ends of the inner support (41) in the first tunnel of the pipe gallery are supported between the pipe gallery crown beams (43) on the two sides, and the inner support (41) in the first tunnel of the pipe gallery is the same as the elevation of the pipe gallery crown beam (43) and is flush with the top surface.
8. The inclined force transmission structure for the deep pipe gallery structure and the main body structure in the building process comprises the following steps: the main body bottom plate structure is communicated with the first inner support (41) of the pipe gallery through a force transmission structure (7) through a pipe gallery crown beam (43) to form a force transmission system.
9. The inclined force transmission structure for the deep pipe gallery structure and the main body structure in the building process comprises the following steps: 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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| CN202122429504.3U CN215948214U (en) | 2021-10-09 | 2021-10-09 | Be used for deep pipe gallery structure and major structure to build slant biography power structure again |
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| CN202122429504.3U CN215948214U (en) | 2021-10-09 | 2021-10-09 | Be used for deep pipe gallery structure and major structure to build slant biography power structure again |
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