CN217758840U - Multichannel multilayer self-stabilization type foundation pit supporting device - Google Patents
Multichannel multilayer self-stabilization type foundation pit supporting device Download PDFInfo
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- CN217758840U CN217758840U CN202221797264.0U CN202221797264U CN217758840U CN 217758840 U CN217758840 U CN 217758840U CN 202221797264 U CN202221797264 U CN 202221797264U CN 217758840 U CN217758840 U CN 217758840U
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Abstract
The utility model discloses a multichannel multilayer is from stable formula underground structure supporting device, the device includes: a fender pile; the plurality of inclined strut units are arranged on the same construction surface; multilayer linkage unit, multilayer linkage unit follows respectively the direction of height interval of fender pile sets up, wherein, every layer linkage unit's one end with fender pile fixed connection, and every layer linkage unit all with all bracing unit fixed connection. The utility model discloses can further improve the horizontal force, reduce horizontal displacement and reduce horizontal displacement to the influence of excavation supporting with the environment, utilize the multiposition to strut and alleviate horizontal displacement moment and disperse to can guarantee the safety of foundation ditch engineering, it has that land resource occupies advantages such as few, the time limit for a project is short, the cost is low, the environmental protection.
Description
Technical Field
The utility model relates to an enclosure technical field of foundation ditch especially relates to a multichannel multilayer is from steady formula underground structure supporting device.
Background
Along with the deepening of urban construction, foundation pit engineering always has huge demands in the urban engineering construction, and along with the continuous development of cities, the surrounding environment complexity of a foundation pit is higher and higher, the existing building (structure) is closer to the edge of the foundation pit, and the design and construction of foundation pit enclosure face greater safety technical challenges.
The conventional inclined throwing support is not preferred due to complex working procedures, high requirements on construction operation surfaces, a plurality of factors influencing construction progress and the like. The patent technology of the self-stabilizing foundation pit supporting structure is gradually applied to corresponding foundation pit supporting because of the advantages of simple process, basically no occupation of field operation outside the foundation pit, basically no occupation of effective construction period when the self-stabilizing foundation pit supporting structure is synchronously constructed with the enclosure body, realization of open type earthwork excavation of the foundation pit and the like.
The self-stabilizing foundation pit support has good social benefit, economic benefit and environmental benefit in recent popularization and application. The core purpose is to reduce the dependence on the traditional internal support system in the foundation pit construction from the internal support to the non-internal support construction, thereby reducing the dependence on the internal support system in the construction process, and achieving the purposes of shortening the construction period, reducing the manufacturing cost, protecting the environment and the like. At present, in areas such as Shanghai, a plurality of application cases exist.
A single supporting system is adopted in a conventional self-stabilizing foundation pit supporting pit, and the following defects exist: 1) Due to the fact that the construction depth is continuously increased at present, a single supporting system cannot meet the construction depth of the foundation pit of the three-layer basement, and the bearing capacity of the supporting and retaining structure cannot meet the construction requirements; 2) The site red line has higher and higher requirements on foundation pit construction, and the traditional self-stabilizing foundation pit support needs to adopt double-row pile support for the foundation pit with the excavation depth of more than 8 meters, occupies space and cannot fully utilize land resources; 3) The deformation control capability of the middle part of the enclosure is weak, the deformation of the big belly is easily caused by excavation of the foundation pit, and the risk of controlling the foundation pit body is unfavorable; 4) The bending resistance of single front-support inclined pile is not enough, and when the excavation depth is deep, the middle part of the front-support inclined pile can generate large bending moment, so that the front-support inclined pile deforms and is damaged excessively.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is necessary to provide a multi-channel multi-layer self-stabilizing foundation pit supporting device.
The utility model provides a multichannel multilayer self-stabilization formula excavation supporting device, includes:
enclosing piles;
the inclined strut units are arranged on the same construction surface;
multilayer linkage unit, multilayer linkage unit follows respectively the direction of height interval of fender pile sets up, wherein, every layer linkage unit's one end with fender pile fixed connection, and every layer linkage unit all with all bracing unit fixed connection.
In one embodiment, the bracing unit comprises a first bracing pile and a second bracing pile which are arranged on the same side, the connecting unit comprises a first connecting beam and a second connecting beam which are horizontally or obliquely arranged, and the first connecting beam is positioned above the second connecting beam;
the top of the first diagonal bracing pile and one end of the first connecting beam are connected with the top of the fender pile through a first enclosing purlin; and one end of the second connecting beam is connected with the side wall of the fender post through a second purlin.
In one embodiment, the bottom of the first and second diagonal bracing piles is provided with a grouting unit, an expanding unit or a soil body reinforcing unit.
In one embodiment, a row pile is arranged on one side of the fender post, which is far away from the first diagonal brace pile and the second diagonal brace pile, and the top of the row pile is connected with the top of the fender post through a third purlin and a third connecting beam.
In one embodiment, the outer row inclined piles are obliquely arranged on one side, away from the first and second diagonal bracing piles, of the fender pile, and the top of each outer row inclined pile is connected with the top of the fender pile.
In one embodiment, an acute angle is formed between the first and second diagonal brace piles.
In one embodiment, the connecting structure further comprises a third connecting beam, the third connecting beam is fixed on the side wall of the enclosure pile and located below the second connecting beam, and the first bracing pile and the second bracing pile are both fixedly connected with the third connecting beam.
In one embodiment, the connecting structure further comprises a third bracing pile, wherein the third bracing pile is arranged on the outer side of the second bracing pile, and the third bracing pile is respectively connected with the first connecting beam and the second connecting beam.
The multi-layer self-stabilizing foundation pit supporting device has the advantages that the multi-layer connecting units are matched with the multi-layer inclined strut units in a supporting mode, the multi-layer inclined strut units are connected with the enclosure piles by the aid of the connecting units on each layer of construction surface, the enclosure piles, the connecting units and the multi-layer inclined strut units form a whole to resist the water and soil pressure of foundation pit enclosure, horizontal force is further improved, influence of horizontal displacement on supporting and environment is reduced, horizontal displacement torque is relieved and dispersed by means of multi-position supporting, the single-row enclosure piles replace double-row piles to meet the construction safety requirements of deep foundation pits, accordingly, expansion of follow-up operation can be guaranteed, occupation of land resources is reduced, construction period is shortened, manufacturing cost is saved, environment is protected, and the like.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a multi-channel multi-layer self-stabilizing foundation pit supporting device according to a first embodiment of the present invention;
fig. 2 is a schematic structural view of a multi-track multi-layer self-stabilizing foundation pit supporting device according to a second embodiment of the present invention;
fig. 3 is a schematic structural view of a multi-track multi-layer self-stabilizing foundation pit supporting device according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a multi-track multi-layer self-stabilizing foundation pit supporting device according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural view of a multi-track multi-layer self-stabilizing foundation pit supporting device according to a fifth embodiment of the present invention;
fig. 6 is a schematic structural view of a multi-track multi-layer self-stabilizing foundation pit supporting device according to a sixth embodiment of the present invention;
fig. 7 is a schematic structural diagram of a multi-channel multi-layer self-stabilizing foundation pit supporting device according to a seventh embodiment of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1-7, an embodiment of the present invention provides a multi-layer self-stabilizing foundation pit supporting device, including:
a fender pile 1; the fender pile 1 is in direct contact with the soil body, and foundation pit soil retaining structures such as cast-in-place piles, precast piles, stirring pile inserted reinforcing members and the like can be adopted;
the plurality of inclined strut units 2 are arranged on the same construction surface;
The multi-layer self-stabilizing foundation pit supporting device has the advantages that the multi-layer connecting units 3 are matched with the multi-layer inclined strut units 2 in a supporting mode, the connecting units 3 are used for connecting the multi-layer inclined strut units 2 with the enclosure piles 1 on each construction surface, the enclosure piles 1, the connecting units 3 and the multi-layer inclined strut units 2 form a whole to resist the water and soil pressure of foundation pit support, the horizontal force is further improved, the influence of the horizontal displacement on the support and the environment is reduced by reducing the horizontal displacement, the horizontal displacement moment is relieved and dispersed by multi-position support, the single-row enclosure piles replace double-row piles to meet the construction safety requirements of deep foundation pits, and accordingly the expansion of follow-up operation can be guaranteed.
The first embodiment is as follows:
referring to fig. 1, in an embodiment of the present invention, the bracing unit 2 includes a first bracing pile 21 and a second bracing pile 22 disposed on the same side, the connecting unit 3 includes a first connecting beam 31 and a second connecting beam 32 disposed horizontally or obliquely, and the first connecting beam 31 is located above the second connecting beam 32; the first diagonal bracing pile 21 and the second diagonal bracing pile 22 can adopt steel pipe piles, precast piles, steel lattices, section steel, composite piles, stirring pile inserted reinforcing members, jet grouting pile inserted reinforcing members, precast hollow pile internal ramming fillers and the like, and can also adopt methods of expanding, grouting bags, soil body reinforcement and the like to improve the bearing capacity of the first diagonal bracing pile 21 and the second diagonal bracing pile 22.
The top of the first inclined supporting pile 21 and one end of the first connecting beam 31 are connected with the top of the fender pile 1 through a first enclosing purlin 4; one end of the second coupling beam 32 is connected with the side wall of the fender pile 1 through a second purlin 5. In this embodiment, first purlin 4 is connected the pile head of fender pile 1 with the pile head of first bracing pile 21, and its main function is: the fender post 1 and the first inclined supporting post 21 are stressed cooperatively, and the first purlin 4 can be made of plain concrete, reinforced concrete or steel materials; the second purlin 5 is connected with the pile body of fender pile 1 and second even roof beam 32, and the primary function is: the soil pressure borne by the fender post 1 is transmitted to the second connecting beam 32, and the second purlin 5 can be made of plain concrete, reinforced concrete or steel materials.
It should be noted that the first connecting beam 31 connects the first purlin 4, the pile head of the first diagonal bracing pile 21, and the pile head of the second diagonal bracing pile 22; the second even roof beam 32 is connected the second and is enclosed purlin 5, the pile body of first bracing pile 21, the pile body of second bracing pile 22, and the primary function is: the stress of the first enclosing purlin 4 and the stress of the second enclosing purlin 5 are conducted to the first diagonal brace pile 21 and the second diagonal brace pile 22, and meanwhile, the first connecting beam 31 and the second connecting beam 32 can improve the stability and the bearing capacity of the first diagonal brace pile 21 and the second diagonal brace pile 22. In this embodiment, the first connecting beam 31 and the second connecting beam 32 are usually made of reinforced concrete or steel, and the first inclined supporting pile 21 and the second inclined supporting pile 22 are connected with the pile body of the fender post 1 through the first connecting beam 31 and the second connecting beam 32 to form an integral structure, which can greatly improve the internal force of the large-depth single-row fender post, reduce the horizontal displacement of the fender post, and reduce the influence of earth excavation on the environment.
Specifically, the first diagonal bracing pile 21 is connected with the first enclosing purlin 4, and is mainly used for bearing the internal force transmitted by the first enclosing purlin 4 and controlling the deformation of the top of the enclosing pile 1; the second inclined supporting piles 22 are connected with the first connecting beams 31 and the second connecting beams 32, mainly bear internal force transmitted by the first connecting beams 31 and the second connecting beams 32, provide horizontal supporting force for the first enclosing purlins 4, the second enclosing purlins 5 and the retaining piles 1, and control the deformation of pile bodies of the retaining piles.
It should be noted that, when the first connecting beam 31 and the second connecting beam 32 are obliquely arranged, the first connecting beam 31 may be constructed after the earth is properly excavated, and the second inclined supporting pile 22 needs to be driven during construction, and the pile driving depth is about 1 to 2 meters. And excavating the earth to the pile head of the second inclined supporting pile 22, exposing the pile head of the second inclined supporting pile 22 to the ground by about 50-60 cm, wherein the excavating surface of the first connecting beam 31 is an inclined excavating surface, and after the first connecting beam 31 and the first enclosing purlin 4 are constructed, excavating earth to construct a second enclosing purlin 5 and a second connecting beam 32. In this embodiment, the first connecting beam 31 and the second connecting beam 32 may be made of steel, concrete, or the like prefabricated in a factory, and the outer edges of the first connecting beam 31 and the second connecting beam 32 and the connecting portions of the first bracing pile 21 and the second bracing pile 22 need to be specially processed to form fixed nodes for transmitting stress, so that the supporting depth of the second bracing pile 22 can be increased, thereby facilitating the increase of the construction depth and the application scene.
Example two:
referring to fig. 2, in an embodiment of the present invention, a grouting unit 6, an expanding unit or a soil body reinforcing unit is disposed at the bottom of the first and second diagonal bracing piles 21 and 22. Thus, the bearing capacity of the first and second raker piles 21 and 22 can be increased through the grouting, bottom expanding and reinforcement construction processes.
Example three:
referring to fig. 3, in an embodiment of the present invention, the fender pile 1 is far away from one side of the first and second diagonal piles 21 and 22 is provided with a row pile 7, and the top of the row pile 7 is connected with the top of the fender pile 1 through a third surrounding purlin 8 and a third connecting beam 9.
In this embodiment, the row piles 7 may be steel pipe (plate) piles, construction piles (reinforcing members inserted in the stirred piles), precast piles, cast-in-place piles, and the like, and the third connecting beams 9 may be made of reinforced concrete, steel, or other various materials capable of connecting the two enclosing purlins (the first enclosing purlin 4 and the third enclosing purlin 8). The bent frame or steel frame structure formed by connecting the row piles 7, the guard piles 1, the third connecting beam 9 and the like can increase the rigidity of the enclosure structure, reduce the deformation of the enclosure structure and increase the applicable depth of the enclosure structure. In addition, the present embodiment is applied in combination with the second embodiment, and the burying depth of the second coupling beam 32 can be greatly increased, so that the excavation depth of the whole foundation pit is increased.
Example four:
referring to fig. 4, in an embodiment of the present invention, the external row of oblique piles 10 is further included, the external row of oblique piles 10 is obliquely disposed on one side of the first oblique supporting pile 21 and the second oblique supporting pile 22 away from the fender post 1, and the top of the external row of oblique piles 10 is connected to the top of the fender post 1.
In this embodiment, the outer row of oblique piles 10 is mainly suitable for the occasion that the foundation ditch red line requires the broad or the place possesses certain implementation condition, and its aim at: the rigidity of the enclosure structure is improved through the outer row of the inclined piles 10, the stability is improved, the total excavation depth of a soil layer can be further improved by combining the embodiment with the embodiment I, and the application range of the enclosure structure is enlarged.
Example five:
referring to fig. 5, in an embodiment of the present invention, an acute angle is formed between the first diagonal brace 21 and the second diagonal brace 22. Therefore, the length of the first connecting beam 31 can be reduced, so that structural stress is optimized, and the control effect on foundation pit deformation is facilitated.
Example six:
referring to fig. 6, in an embodiment of the present invention, the present invention further includes a third connecting beam 11, the third connecting beam 11 is fixed on the side wall of the fender pile 1 and is located below the second connecting beam 32, the first diagonal bracing pile 21 and the second diagonal bracing pile 22 are both fixedly connected to the third connecting beam 11, and mainly function as: further improving the stability and load bearing capacity of the first 21 and second 22 raker piles. Therefore, the method can be applied to the operation of a more-layer inclined strut system, thereby increasing the application depth and the application scene. By analogy, the method can be adopted to further increase the number of layers of more connecting beams.
Example seven:
referring to fig. 7, in an embodiment of the present invention, a third diagonal brace 23 is further included, the third diagonal brace 23 is disposed outside the second diagonal brace 22, and the third diagonal brace 23 is connected to the first connecting beam 31 and the second connecting beam 32 respectively. In this embodiment, increased the quantity of bracing stake in the horizontal direction, can improve overall structure's rigidity, thereby increase the utility model discloses an use the degree of depth and use the scene. By analogy, the number of the more supporting oblique piles can be further increased in the horizontal direction by adopting the method.
The utility model discloses in, multichannel multilayer self-stabilization formula excavation supporting device's construction method is following:
s1, constructing a fender post 1; the fender pile 1 can adopt a single row of cast-in-situ bored piles to retain soil, so that the land area occupied by the foundation pit retaining structure is saved;
s2, constructing a first diagonal bracing pile 21 and a second diagonal bracing pile 22; in this embodiment, steel pipe piles with a diameter of 377mm may be used as the first and second diagonal brace piles 21 and 22.
S3, excavating to the elevation positions of the bottom surfaces of the first connecting beam 31 and the first enclosing purlin 4, constructing a reinforcement cage of the first connecting beam 31 and the first enclosing purlin 4, and connecting the top of the first diagonal bracing pile 21 and the top of the second diagonal bracing pile 22 with the top of the enclosing pile 1 through concrete pouring;
s4, fixing a second enclosing purlin 5 and a reinforcement cage of a second connecting beam 32 on the fender pile 1;
s5, excavating a foundation pit to the elevation of the bottom surface of the second connecting beam 32;
s6, constructing a second surrounding purlin 5 and a second connecting beam 32;
s7, excavating a foundation pit to the bottom of the pit after the concrete strength of the second connecting beam 32 reaches a certain degree;
s8, constructing a bottom plate cushion layer and a structural bottom plate.
In this embodiment, the first purlin 4 may be made of reinforced concrete material, after the pile head of the fender pile 1 is leveled, the steel bar is bound, and concrete is poured to connect the first inclined supporting pile 21 and the first connecting beam 31 with the pile head of the fender pile 1; the second enclosing purlin 5 can be made of reinforced concrete materials or steel materials, steel bars are drilled in the middle of the enclosing pile 1 and implanted, the second enclosing purlin 5 is connected with the second connecting beam 32 after being connected with the pile body steel bars of the cast-in-place pile, a steel hook is driven into the enclosing pile 1 on the upper portion of the second enclosing purlin 5, and the second enclosing purlin 5 is hooked by the hook.
It should be noted that the first connecting beam 31 may be made of reinforced concrete material or steel material. When the reinforced concrete material is adopted, the first surrounding purlin 4, the pile head of the first inclined supporting pile 21 and the pile head of the second inclined supporting pile 22 are connected through manufacturing a reinforced cage on site, concrete is poured after the manufacturing of the reinforced cage is finished, and the three components are connected through a reinforced concrete connecting beam; when steel is adopted, the section steel is adopted as the connecting beam main body, the first diagonal bracing pile 21 and the second diagonal bracing pile 22 are connected through steel connecting nodes, mechanical connection or welding connection and the like, and the pile head of the first surrounding purlin 4, the pile head of the first diagonal bracing pile 21 and the pile head of the second diagonal bracing pile 22 are connected.
Alternatively, the second coupling beam 32 may be made of a reinforced concrete material or a steel material. When the reinforced concrete material is adopted, the second purlin 5, the pile body of the first diagonal bracing pile 21 and the pile body of the second diagonal bracing pile 22 are connected through on-site manufacturing of reinforcing steel bars, concrete is poured after the manufacturing of the reinforcement cage is finished, and the three components are connected through the reinforced concrete connecting beam; when steel is adopted, the section steel is adopted as the connecting beam main body, the steel connecting joint is adopted for connecting the inclined supporting piles, and the second enclosing purlin 5, the pile body of the first inclined supporting pile 21 and the pile body of the second inclined supporting pile 22 are connected through mechanical connection or welding connection and the like.
In an embodiment of the present invention, the step S2 includes:
s21, pressing the first inclined supporting pile 21 into a soil body in an inclined direction of 30-60 degrees by using a pile driver, and enabling the top of the first inclined supporting pile 21 to be adjacent to the top of the fender post 1;
s22, pressing the second inclined strut piles 22 into soil in an inclined direction of 30-60 degrees, wherein the horizontal distance between the second inclined strut piles 22 and the first enclosing purlin 4 at the top of the enclosing pile 1 is 0.1-5m.
To sum up, the utility model has the advantages of it is following:
1) The construction of the inclined supporting piles is synchronously carried out during the construction of the enclosure body, the effective construction period is basically not occupied, the enclosing purlin and the supporting construction and maintenance are completed, the foundation pit earthwork excavation can be implemented, the construction period can be effectively reduced, the manufacturing cost is reduced, and the engineering cost is saved;
2) The utility model discloses can increase the available area of building about 1000 ~ 2000 square meters, the foundation ditch supports simultaneously and requires lower to the red line space, therefore this technique has wider application scope than double or multirow fender pile foundation ditch technique;
3) The utility model meets the excavation depth of the foundation pit only by increasing the number of the diagonal bracing piles without increasing the second diagonal bracing, can partially or completely replace 1 or 2 conventional bracing systems, and the larger the excavation area of the foundation pit is, the higher the cost performance is;
4) The utility model connects the two inclined supporting piles with the body of the fender pile by the connecting beam to form a unified anti-bending whole body, which can further improve the horizontal stress of the fender pile, reduce the horizontal displacement of the fender pile and reduce the influence of earthwork excavation on the enclosure structure;
5) The utility model discloses avoided in the inclined throwing bracing scheme correspondingly staying soil pressure slope, fluting support complex processes such as construction, secondary earthwork excavation and probably because of occupying the quality problems that foundation plate arouses. After the support is formed, open-type earthwork excavation can be realized in one step, the earthwork excavation difficulty is greatly reduced, the structure construction is convenient, the construction joint arrangement is reduced, and the construction period is greatly shortened;
6) The utility model effectively shortens the construction period, reduces the construction risk of the foundation pit, and increases the safety of the foundation pit;
7) The utility model uses fewer construction machines and is a conventional engineering apparatus, in addition, the utility model has the advantages of simple construction process, fast construction speed and wide application range;
8) The utility model discloses green, the carbon reduction reduces discharging benefit obviously. The consumption of materials such as reinforcing steel bars, concrete and the like is far less than that of the conventional scheme, the carbon emission of underground engineering can be obviously reduced, secondary noise and dust pollution to the environment caused by massive support dismantling are avoided, and the environmental and social benefits are obvious.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, but should not be interpreted as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (8)
1. The utility model provides a multichannel multilayer self-stabilization formula excavation supporting device which characterized in that includes:
a fender pile;
the plurality of inclined strut units are arranged on the same construction surface;
multilayer linkage unit, multilayer linkage unit follows respectively the direction of height interval of fender pile sets up, wherein, every layer linkage unit's one end with fender pile fixed connection, and every layer linkage unit all with all bracing unit fixed connection.
2. The multi-channel multi-layer self-stabilizing foundation pit supporting device according to claim 1, wherein the bracing unit comprises a first bracing pile and a second bracing pile which are arranged on the same side, the connecting unit comprises a first connecting beam and a second connecting beam which are horizontally or obliquely arranged, and the first connecting beam is positioned above the second connecting beam;
the top of the first diagonal bracing pile and one end of the first connecting beam are connected with the top of the fender pile through a first enclosing purlin; and one end of the second connecting beam is connected with the side wall of the fender post through a second purlin.
3. The multi-course multi-layer self-stabilizing foundation pit supporting device according to claim 2, wherein the bottoms of the first and second diagonal bracing piles are provided with grouting units, expanding units or soil body reinforcing units.
4. A multi-channel multi-layer self-stabilizing foundation pit supporting device as claimed in claim 2 or 3, wherein one side of the fender pile, which is far away from the first and second diagonal piles, is provided with a gang pile, and the top of the gang pile is connected with the top of the fender pile through a third purlin and a third connecting beam.
5. The multi-channel multi-layer self-stabilizing foundation pit supporting device according to claim 2, further comprising outer row inclined piles, wherein the outer row inclined piles are obliquely arranged on one side of the fender post, which is far away from the first and second inclined supporting piles, and the tops of the outer row inclined piles are connected with the tops of the fender posts.
6. The multi-course multi-layer self-stabilizing foundation pit supporting device according to claim 2 or 3, wherein an acute angle is formed between the first diagonal brace pile and the second diagonal brace pile.
7. The multi-channel multi-layer self-stabilizing foundation pit supporting device of claim 6, further comprising a third connecting beam, wherein the third connecting beam is fixed on the side wall of the enclosure pile and located below the second connecting beam, and the first diagonal brace pile and the second diagonal brace pile are both fixedly connected with the third connecting beam.
8. The multi-channel multi-layer self-stabilizing foundation pit supporting device according to claim 2, further comprising a third diagonal pile, wherein the third diagonal pile is arranged on the outer side of the second diagonal pile, and the third diagonal pile is connected with the first connecting beam and the second connecting beam respectively.
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| CN202221797264.0U CN217758840U (en) | 2022-07-13 | 2022-07-13 | Multichannel multilayer self-stabilization type foundation pit supporting device |
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| CN202221797264.0U CN217758840U (en) | 2022-07-13 | 2022-07-13 | Multichannel multilayer self-stabilization type foundation pit supporting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115262572A (en) * | 2022-07-13 | 2022-11-01 | 上海勘察设计研究院(集团)有限公司 | Multi-channel multi-layer self-stabilizing foundation pit supporting device and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115262572A (en) * | 2022-07-13 | 2022-11-01 | 上海勘察设计研究院(集团)有限公司 | Multi-channel multi-layer self-stabilizing foundation pit supporting device and construction method |
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