CN214940212U - Deep foundation pit supporting device - Google Patents
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- CN214940212U CN214940212U CN202121165501.7U CN202121165501U CN214940212U CN 214940212 U CN214940212 U CN 214940212U CN 202121165501 U CN202121165501 U CN 202121165501U CN 214940212 U CN214940212 U CN 214940212U
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Abstract
The utility model discloses a deep basal pit supporting device, it includes: the supporting beam, a plurality of first supporting columns, a plurality of second supporting columns, a plurality of first anchor piles, a plurality of second anchor pile groups, a protective net and a sprayed concrete layer. The utility model discloses an inner wall at deep basal pit sets up twice protecting wall, and first protecting wall is firmly connected with the deep basal pit inner wall through a plurality of first stocks and a plurality of second stock, and the second protecting wall comprises reinforcing bar protection network and injection concrete layer, and a plurality of first splice bar and a plurality of second splice bar have strengthened the fastness of connecting between first protecting wall and the second protecting wall, the utility model discloses can improve deep basal pit supporting device's steadiness greatly, guarantee the construction safety nature.
Description
Technical Field
The utility model relates to a technical field of foundation ditch construction. More specifically, the utility model relates to a deep basal pit supporting device.
Background
In order to ensure the safety of the underground structure construction and the surrounding environment of the foundation pit, protective measures such as supporting and reinforcing the side wall of the foundation pit are generally required, especially in the deep foundation pit construction process, because the depth of the foundation pit is large, if the supporting and protecting work of the side wall of the foundation pit is not done, serious potential safety hazards exist, and once an accident occurs in the foundation pit construction process, the cluster damage is easily caused.
In the deep basal pit work progress, especially will regard the strut of foundation ditch lateral wall, current deep basal pit supporting construction exists structural stability relatively poor, needs to spend a large amount of time to set up vertically and horizontally staggered's reinforcing bar net, wastes time and energy, and the anti-seepage performance is relatively poor.
Therefore, a deep foundation pit supporting device with stable supporting structure, simple steel bar mesh erection and seepage-proofing performance is needed.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.
The utility model discloses it is still another purpose to provide a deep basal pit supporting device, it includes:
the supporting beam is a frame structure horizontally arranged at the top of the deep foundation pit, and the outer ring of the supporting beam is tightly attached to the circumferential inner side wall of the top of the deep foundation pit;
the supporting beams are arranged on the foundation pit in a staggered mode, the top of each supporting column is located inside the corresponding supporting beam, and the bottom of each supporting column penetrates through the corresponding supporting beam and is inserted into the bottom of the corresponding deep foundation pit;
the top of each second support column is fixedly connected with the bottom of the support beam, the bottom of each second support column is inserted into the bottom of the deep foundation pit, and two sides of each second support column are fixedly connected with the adjacent first support columns; all the first supporting columns and all the second supporting columns form a first protective wall which is matched with the circumferential profile of the deep foundation pit and has an annular closed structure;
the top of one second supporting column is correspondingly provided with one first anchor pile, one end of any first anchor pile is positioned on one side of the inner ring of the supporting beam, the other end of the first anchor pile obliquely and downwards penetrates through the supporting beam and is inserted into the side wall of the deep foundation pit, and one end of the first anchor pile is provided with a first connecting rib;
a plurality of second anchor pile groups are arranged at intervals in the vertical direction, any one of the second anchor pile groups comprises a plurality of second anchor piles, one second support column is correspondingly provided with one second anchor pile, one end of any one second anchor pile is positioned on one side of the inner ring of the support beam, the other end of the any one second anchor pile obliquely and downwards penetrates through the corresponding second support column and is inserted into the side wall of the deep foundation pit, and one end of each second anchor pile is provided with a second connecting rib;
the protective net is laid on the first protective wall, and any one first connecting rib and any one second connecting rib are fixedly connected with the protective net; the protective net;
and a concrete layer is sprayed, and the protective net, all the first connecting ribs and all the second connecting ribs are completely embedded to form a second protective wall.
Preferably, the deep foundation pit supporting device, a plurality of supporting mechanism, it sets up along vertical direction interval, arbitrary supporting mechanism includes a plurality of bracing pieces, correspond between two arbitrary adjacent sides of second protective wall and set up a bracing piece, the both ends of arbitrary bracing piece respectively with the adjacent side butt of second protective wall.
Preferably, in the deep foundation pit supporting device, each support rod comprises two steel pipes and a sleeve, the sleeve is located between the two steel pipes, one end of each steel pipe is inserted into the sleeve and is in threaded connection with the sleeve, and the other end of each steel pipe abuts against one adjacent side face of the second protective wall.
Preferably, the deep foundation pit supporting device, a plurality of triangular reinforcing plates are fixedly arranged between any two adjacent side surfaces of the second protection wall, and one reinforcing plate is correspondingly arranged on one supporting rod.
Preferably, in the deep foundation pit supporting device, any reinforcing plate is connected with the corresponding sleeve through a binding rope.
Preferably, the deep foundation pit supporting device further comprises a base, the base is a concrete block horizontally laid on the bottom surface of the deep foundation pit, a plurality of fixing nails are circumferentially arranged at intervals at the bottom of the protective net, the top of any fixing nail is fixedly connected with the bottom of the protective net, and the bottom of the fixing nail vertically penetrates through the base downwards and is inserted into the bottom of the deep foundation pit.
Preferably, in the deep foundation pit supporting device, the inside of any fixing nail is hollow, a plurality of grouting holes are formed in the side wall of the fixing nail, and any grouting hole is located inside the base.
Preferably, the deep foundation pit supporting device, a plurality of reference columns are arranged on the lateral wall of any fixing nail at intervals, any reference column is located inside the base, and the hollow inside and the free end of the reference column are arranged in an open mode.
Preferably, in the deep foundation pit supporting device, impermeable layers are poured on the surface of the second protective wall and the upper surface of the base.
The utility model discloses at least, include following beneficial effect:
1. the utility model discloses an inner wall at deep basal pit sets up twice protecting wall, and first protecting wall is firmly connected with the deep basal pit inner wall through a plurality of first stocks and a plurality of second stock, and the second protecting wall comprises reinforcing bar protection network and injection concrete layer, and a plurality of first splice bar and a plurality of second splice bar have strengthened the fastness of connecting between first protecting wall and the second protecting wall, the utility model discloses can improve deep basal pit supporting device's steadiness greatly, guarantee the construction safety nature.
2. The utility model discloses set up a plurality of supporting mechanism, carry out the relevance with two adjacent sides of second protecting wall, can further improve the steadiness of strutting arrangement structure. After the concrete layer is sprayed, two ends of the supporting rod are respectively abutted against two corresponding side faces of the second protection wall, and a sleeper is arranged between any one end of the supporting rod and the side face of the second protection wall;
3. the support rod formed by the sleeve and the two reinforcing steel pipes has the characteristic of adjustable length, the support range of the support rod can be adjusted according to the design size of the deep foundation pit, and the two reinforcing steel pipes are fastened by rotating the sleeve after being abutted against the adjacent side surfaces of the second protective wall;
4. set up the base on deep basal pit's the bottom surface, and through the bottom rigid coupling of a plurality of staples with base and protection network, in the actual construction, after carrying out deep basal pit excavation at last, carry out second anchor pile group in proper order, the protection network, supporting mechanism's installation, then carry out the flattening to deep basal pit's bottom surface, tamp, the vertical bottom of beating into deep basal pit with a plurality of staples afterwards, reserve the length of staple (outstanding in the length of deep basal pit bottom surface) according to the design thickness of base, the top of arbitrary staple and the bottom of protection network carry out the rigid coupling (can weld also the ligature fixed), spray concrete layer on the protection network afterwards, herein simultaneously pour the concrete in deep basal pit's bottom surface and form the base, the base forms an organic whole structure with second protective wall, reinforcing support device's steadiness.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic top view of the deep foundation pit supporting device of the present invention;
fig. 2 is the deep basal pit supporting device's overall structure sketch map.
Description of reference numerals: 1-deep foundation pit 2-support beam 3-first support column 4-second support column 5-first anchor pile 51-first connecting rib 6-second anchor pile 61-second connecting rib 7-protective net 8-sprayed concrete layer 81-support rod 82-reinforcing plate 83-binding rope 9-base 10-fixing nail.
Detailed Description
The present invention is further described in detail below with reference to the drawings and examples so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
In the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1-2, the utility model provides a deep basal pit supporting device, it includes:
the supporting beam 2 is a frame structure horizontally arranged at the top of the deep foundation pit 1, and the outer ring of the supporting beam 2 is tightly attached to the circumferential inner side wall of the top of the deep foundation pit 1;
the supporting beams 2 are arranged in the longitudinal direction of the foundation pit 1, the supporting beams 2 are arranged in the longitudinal direction of the foundation pit 2, the supporting beams 3 are arranged in the longitudinal direction of the foundation pit 2, and the bottom of each supporting column 3 is inserted into the bottom of the foundation pit 1;
a second support column 4 is correspondingly arranged between any two adjacent first support columns 3, any second support column 4 is a concrete pile, the top of the second support column 4 is fixedly connected with the bottom of the support beam 2, the bottom of the second support column 4 is inserted into the bottom of the deep foundation pit 1, and two sides of the second support column 4 are fixedly connected with the adjacent first support columns 3 respectively; all the first supporting columns 3 and all the second supporting columns 4 form a first protective wall which is matched with the circumferential profile of the deep foundation pit 1 and has an annular closed structure;
the top of one second supporting column 4 is correspondingly provided with one first anchor pile 5, one end of any first anchor pile 5 is positioned on one side of the inner ring of the supporting beam 2, the other end of the first anchor pile 5 obliquely and downwards penetrates through the supporting beam 2 and is inserted into the side wall of the deep foundation pit 1, and one end of the first anchor pile 5 is provided with a first connecting rib 51;
a plurality of second anchor pile 6 groups are arranged at intervals in the vertical direction, any one second anchor pile 6 group comprises a plurality of second anchor piles 6, one second support column 4 is correspondingly provided with one second anchor pile 6, one end of any second anchor pile 6 is positioned on one side of the inner ring of the support beam 2, the other end of the second anchor pile 6 obliquely and downwards penetrates through the corresponding second support column 4 and is inserted into the side wall of the deep foundation pit 1, and one end of each second anchor pile 6 is provided with a second connecting rib 61;
the protective net 7 is laid on the protective wall, and any one of the first connecting ribs 51 and any one of the second connecting ribs 61 are fixedly connected with the protective net 7; the protective net 7;
and a sprayed concrete layer 8 which completely embeds the protective net 7, all the first connecting ribs 51 and all the second connecting ribs 61 to form a second protective wall.
In the technical scheme, the utility model discloses an inner wall at deep basal pit 1 sets up twice protecting wall, and first protecting wall is through a plurality of first stocks and a plurality of second stock and 1 inner wall firm connection of deep basal pit, and the second protecting wall comprises reinforcing bar protection network 7 and injection concrete layer 8, and a plurality of first splice bar 51 and a plurality of second splice bar 61 have strengthened the fastness of connecting between first protecting wall and the second protecting wall, the utility model discloses can improve 1 deep basal pit supporting device's of deep basal pit steadiness greatly, guarantee the construction safety nature.
In the technical scheme, the concrete construction process is as follows:
s1, in the actual construction process, before the deep foundation pit is excavated, a construction site is leveled and tamped, a top contour line of the deep foundation pit is drawn according to a design drawing, a plurality of first pile holes are dug along the circumference of the deep foundation pit at intervals, the depth of any first pile hole is greater than the preset depth of the deep foundation pit, a second pile hole is dug between any two adjacent first pile holes, the depth of any second pile hole is greater than the preset depth of the deep foundation pit, two sides of the second pile hole are overlapped with the side wall parts of the corresponding first pile hole, a reinforcement cage is prefabricated below any first pile hole, concrete is poured into the first pile hole and the second pile hole, so that a first supporting column 3 and a second supporting column 4 which are integrally formed are formed, and all the first supporting columns 3 and all the second supporting columns 4 form a first protective wall;
s2, performing primary excavation of the deep foundation pit, excavating the upper soil body of the foundation pit to the depth required by the primary excavation, chiseling the top concrete of the first support column 3 and the second support column 4 according to the design height of the support beam 2, and reserving the top steel bar of the first support column 3; a first anchor pile 5 hole is formed in the side wall of the foundation pit at the top of any second supporting column 4, a first anchor pile 5 is inserted into any first anchor pile 5 hole, one end of any first anchor pile 5 is positioned at one side, close to the center of the deep foundation pit, of the corresponding second supporting column 4 and is fixedly provided with a first connecting rib 51, the other end of any first anchor pile 5 is obliquely inserted into the side wall of the deep foundation pit downwards, a reinforcement cage of a frame structure is bound at the top of the first protective wall, in the binding process, the reinforcement cage is welded with the top steel bars of the first supporting columns 3, any first connecting rib 51 is positioned at one side, close to the center of the deep foundation pit, concrete is poured into the reinforcement cage after the binding is finished, and then the supporting beam 2 of the frame structure which surrounds the top of the deep foundation pit is formed;
and S3, mounting the second anchor pile 6 group: a second anchor pile 6 hole extending into the side wall of the deep foundation pit is formed in the lower part of any second supporting column 4 (the lower part of the part exposed after once excavation is carried out, if the excavation height is larger, a second anchor pile 6 group is additionally arranged along the vertical direction), a second anchor pile 6 is inserted into any second anchor pile 6 hole, one end of any second anchor pile 6 is fixedly provided with a second connecting rib 61 protruding out of the supporting beam 2, the other end of the second anchor pile obliquely penetrates through the second supporting column 4 and extends into the side wall of the deep foundation pit, a protective net 7 made of reinforcing steel bars is prefabricated according to the circumferential profile of the deep foundation pit, the protective net 7 is laid on the first protective wall, the protective net 7 is welded with all the first connecting ribs 51 and all the second connecting ribs 61, then a concrete layer 8 is sprayed on the protective net 7, and all the first connecting ribs 51 and all the second connecting ribs 61 are completely embedded, forming a second protective wall; the supporting beam 2, the first protective wall and the second protective wall are connected into a whole through the steel bars at the top of the first supporting column 3, one end of the first anchor pile 5, all the first connecting ribs 51 and all the second connecting ribs 61, so that the structural stability of the supporting device is greatly improved;
s4, performing next excavation of the deep foundation pit to the depth required by the design, then installing a second anchor pile 6 group at the top and the bottom of the height range after the excavation (if the excavation height is larger, at least one second anchor pile 6 group can be also arranged in the middle) according to the method of the step S3, and then paving a protective net 7 and spraying a concrete layer to form a next second protective wall;
and S5, repeating S4 until the designed elevation of the bottom of the deep foundation pit is reached.
In another technical scheme, the deep foundation pit supporting device comprises a plurality of supporting mechanisms which are arranged at intervals in the vertical direction, each supporting mechanism comprises a plurality of supporting rods 81, one supporting rod 81 is correspondingly arranged between any two adjacent side faces of the second protection wall, and two ends of each supporting rod 81 are respectively abutted to one adjacent side face of the second protection wall. Set up a plurality of supporting mechanism, associate two adjacent sides of second protecting wall, can further improve the steadiness of strutting arrangement structure. Specifically, after the concrete layer 8 is sprayed, two ends of the supporting rod 81 are respectively abutted against two corresponding side surfaces of the second protective wall, and a sleeper is arranged between any one end of the supporting rod 81 and the side surface of the second protective wall.
In the construction process, 6 groups of second anchor piles correspondingly set up a supporting mechanism, and after 6 groups of second anchor piles are installed, the installation of supporting mechanism can be carried out, and both ends of any bracing piece 81 of any supporting mechanism are respectively abutted with corresponding side surfaces.
In another technical solution, in the deep foundation pit supporting device, any one of the supporting rods 81 includes two steel pipes and a sleeve, the sleeve is located between the two steel pipes, one end of any one of the steel pipes is inserted into the sleeve and is in threaded connection with the sleeve, and the other end of the steel pipe abuts against the adjacent side surface of the second protective wall. The supporting rod 81 formed by the sleeve and the two reinforcing steel pipes has the characteristic of adjustable length, the supporting range of the supporting rod 81 can be adjusted according to the design size of a deep foundation pit, and after the two reinforcing steel pipes are abutted against the adjacent side faces of the second protective wall, the two reinforcing steel pipes are fastened by rotating the sleeve.
In another technical scheme, in the deep foundation pit supporting device, a plurality of triangular reinforcing plates 82 are fixedly arranged between any two adjacent side surfaces of the second protection wall, and one reinforcing plate 82 is correspondingly arranged on one supporting rod 81. As shown in fig. 1, a reinforcing plate 82 is provided at the corner between the two sides to further improve the stability of the support. After the concrete layer injection is completed, the installation of the reinforcing plate 82 is performed.
In another technical scheme, in the deep foundation pit supporting device, any reinforcing plate 82 is connected with the corresponding sleeve through a strapping rope 83. In practical application, the strapping rope 83 is in a tensioning state, the reinforcing plate 82 is connected with the sleeve through the strapping rope 83, the sleeve can be positioned, unnecessary rotation of the sleeve is avoided, and meanwhile, the reinforcing plate 82 can be used for stably supporting the supporting rod 81.
In another technical scheme, the deep foundation pit supporting device further comprises a base 9, the base 9 is a concrete block horizontally laid on the bottom surface of the deep foundation pit, a plurality of fixing nails 10 are circumferentially arranged at intervals at the bottom of the protective net 7, the top of any fixing nail 10 is fixedly connected with the bottom of the protective net 7, and the bottom of the fixing nail 10 vertically penetrates through the base 9 downwards and is inserted into the bottom of the deep foundation pit. Set up base 9 on the bottom surface of deep basal pit, and through the bottom rigid coupling of a plurality of staple 10 with base 9 and protection network 7, in the actual construction, after carrying out the excavation completion of deep basal pit at last time, carry out second anchor pile 6 group in proper order, protection network 7, the installation of supporting mechanism, then carry out the flattening to the bottom surface of deep basal pit, tamp, the vertical bottom of beating into deep basal pit of a plurality of staple 10 afterwards, reserve the length of staple 10 (outstanding length in deep basal pit bottom surface) according to the design thickness of base 9, the top of arbitrary staple 10 and the bottom of protection network 7 carry out the rigid coupling (can weld and also can fix), spray concrete layer 8 on protection network 7 afterwards, herein pour the concrete simultaneously in the bottom surface of deep basal pit and form base 9, base 9 and second protective wall form an organic whole structure, strengthen strutting arrangement's steadiness.
In another technical scheme, in the deep foundation pit supporting device, the inside of any fixing nail 10 is hollow, the side wall of the fixing nail 10 is provided with a plurality of grouting holes, and any grouting hole is located inside the base 9. The inside cavity of staple 10, and be equipped with the slip casting hole on the lateral wall, when carrying out concrete foundation 9 and pour, concrete accessible slip casting hole gets into the inside of staple 10, and then makes the inside concrete of staple 10 and base 9 form an organic whole, improves the steadiness that staple 10 and base 9 are connected.
In another technical scheme, in the deep foundation pit supporting device, a plurality of positioning columns are arranged on the side wall of any fixing nail 10 at intervals, any positioning column is located inside the base 9, and the inside of the positioning column is hollow and the free end of the positioning column is open. Because of the free end of reference column is uncovered setting, when carrying out concreting of concrete foundation 92, the concrete can get into in the reference column, makes concrete and concrete foundation 9 integrated into one piece in the reference column to make the stability of staple 10 in concrete foundation 9 better.
In another technical scheme, in the deep foundation pit supporting device, impermeable layers are poured on the surface of the second protective wall and the upper surface of the base 9. Further prevent the inside infiltration of deep basal pit.
The utility model discloses a concrete work progress:
s1, in the actual construction process, before the deep foundation pit is excavated, a construction site is leveled and tamped, a top contour line of the deep foundation pit is drawn according to a design drawing, a plurality of first pile holes are dug along the circumference of the deep foundation pit at intervals, the depth of any first pile hole is greater than the preset depth of the deep foundation pit, a second pile hole is dug between any two adjacent first pile holes, the depth of any second pile hole is greater than the preset depth of the deep foundation pit, two sides of the second pile hole are overlapped with the side wall parts of the corresponding first pile hole, a reinforcement cage is prefabricated below any first pile hole, concrete is poured into the first pile hole and the second pile hole, so that a first supporting column 3 and a second supporting column 4 which are integrally formed are formed, and all the first supporting columns 3 and all the second supporting columns 4 form a first protective wall;
s2, performing primary excavation of the deep foundation pit, excavating the upper soil body of the foundation pit to the depth required by the primary excavation, chiseling the top concrete of the first support column 3 and the second support column 4 according to the design height of the support beam 2, and reserving the top steel bar of the first support column 3; a first anchor pile 5 hole is formed in the side wall of the foundation pit at the top of any second supporting column 4, a first anchor pile 5 is inserted into any first anchor pile 5 hole, one end of any first anchor pile 5 is positioned at one side, close to the center of the deep foundation pit, of the corresponding second supporting column 4 and is fixedly provided with a first connecting rib 51, the other end of any first anchor pile 5 is obliquely inserted into the side wall of the deep foundation pit downwards, a reinforcement cage of a frame structure is bound at the top of the first protective wall, in the binding process, the reinforcement cage is welded with the top steel bars of the first supporting columns 3, any first connecting rib 51 is positioned at one side, close to the center of the deep foundation pit, concrete is poured into the reinforcement cage after the binding is finished, and then the supporting beam 2 of the frame structure which surrounds the top of the deep foundation pit is formed;
and S3, mounting the second anchor pile 6 group: a second anchor pile 6 hole extending into the side wall of the deep foundation pit is formed in the lower part of any second supporting column 4 (the lower part of the part exposed after once excavation is carried out, if the excavation height is larger, a second anchor pile 6 group is additionally arranged along the vertical direction), a second anchor pile 6 is inserted into any second anchor pile 6 hole, one end of any second anchor pile 6 is fixedly provided with a second connecting rib 61 protruding out of the supporting beam 2, the other end of the second anchor pile obliquely penetrates through the second supporting column 4 and extends into the side wall of the deep foundation pit, a protective net 7 made of reinforcing steel bars is prefabricated according to the circumferential profile of the deep foundation pit, the protective net 7 is laid on the first protective wall, the protective net 7 is welded with all the first connecting ribs 51 and all the second connecting ribs 61, then a concrete layer 8 is sprayed on the protective net 7, and all the first connecting ribs 51 and all the second connecting ribs 61 are completely embedded, forming a second protective wall, and then installing a supporting mechanism; the supporting beam 2, the first protective wall and the second protective wall are connected into a whole through the steel bars at the top of the first supporting column 3, one end of the first anchor pile 5, all the first connecting ribs 51 and all the second connecting ribs 61, so that the structural stability of the supporting device is greatly improved;
s4, performing next excavation of the deep foundation pit to the depth required by design, then installing a second anchor pile 6 group at the top and the bottom of the height range after the excavation according to the method of the step S3 (if the excavation height is larger, at least one second anchor pile 6 group can be also arranged in the middle), then paving a protective net 7, spraying a concrete layer to form a second protective wall, then installing a plurality of supporting mechanisms and a plurality of reinforcing plates 82, and connecting any reinforcing plate 82 with a corresponding sleeve through a binding rope 83;
s5, repeating S4 until the designed elevation of the bottom of the deep foundation pit is reached, wherein after the last excavation is finished, the second anchor pile 6 group, the protective net 7 and the supporting mechanism are sequentially installed according to the method of the step S4, then the bottom of the deep foundation pit is leveled and tamped, then a plurality of fixing nails 10 are vertically driven into the bottom of the deep foundation pit, the length of the fixing nail 10 (the length protruding out of the bottom of the deep foundation pit) is reserved according to the designed thickness of the base 9, the top of any fixing nail 10 is fixedly connected (can be welded or can be bound and fixed) with the bottom of the protective net 7, then a concrete layer 8 is sprayed on the protective net 7, meanwhile, concrete is poured on the bottom of the deep foundation pit to form the base 9, the base 9 and the second protective wall form an integrated structure, and the stability of the supporting device is enhanced;
and S6, pouring fine concrete on the outer surfaces of the second protective walls (all the second protective walls) and the upper surface of the base 9 to form an impermeable layer.
The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (9)
1. Deep basal pit supporting device, its characterized in that, it includes:
the supporting beam is a frame structure horizontally arranged at the top of the deep foundation pit, and the outer ring of the supporting beam is tightly attached to the circumferential inner side wall of the top of the deep foundation pit;
the supporting beams are arranged on the foundation pit in a staggered mode, the top of each supporting column is located inside the corresponding supporting beam, and the bottom of each supporting column penetrates through the corresponding supporting beam and is inserted into the bottom of the corresponding deep foundation pit;
the top of each second support column is fixedly connected with the bottom of the support beam, the bottom of each second support column is inserted into the bottom of the deep foundation pit, and two sides of each second support column are fixedly connected with the adjacent first support columns; all the first supporting columns and all the second supporting columns form a first protective wall which is matched with the circumferential profile of the deep foundation pit and has an annular closed structure;
the top of one second supporting column is correspondingly provided with one first anchor pile, one end of any first anchor pile is positioned on one side of the inner ring of the supporting beam, the other end of the first anchor pile obliquely and downwards penetrates through the supporting beam and is inserted into the side wall of the deep foundation pit, and one end of the first anchor pile is provided with a first connecting rib;
a plurality of second anchor pile groups are arranged at intervals in the vertical direction, any one of the second anchor pile groups comprises a plurality of second anchor piles, one second support column is correspondingly provided with one second anchor pile, one end of any one second anchor pile is positioned on one side of the inner ring of the support beam, the other end of the any one second anchor pile obliquely and downwards penetrates through the corresponding second support column and is inserted into the side wall of the deep foundation pit, and one end of each second anchor pile is provided with a second connecting rib;
the protective net is laid on the first protective wall, and any one first connecting rib and any one second connecting rib are fixedly connected with the protective net; the protective net;
and a concrete layer is sprayed, and the protective net, all the first connecting ribs and all the second connecting ribs are completely embedded to form a second protective wall.
2. The deep foundation pit supporting device according to claim 1, wherein a plurality of supporting mechanisms are provided at intervals in the vertical direction, each supporting mechanism includes a plurality of supporting rods, one supporting rod is provided between any two adjacent side surfaces of the second protection wall, and both ends of each supporting rod are respectively abutted against one adjacent side surface of the second protection wall.
3. A deep foundation pit supporting apparatus as claimed in claim 2, wherein each of the support rods comprises two reinforcing pipes and a sleeve interposed between the two reinforcing pipes, one end of each of the reinforcing pipes being inserted into the interior of the sleeve and threadedly engaged with the sleeve, and the other end of each of the reinforcing pipes abutting against an adjacent one of the side walls of the second protective wall.
4. The deep foundation pit supporting device according to claim 3, wherein a plurality of triangular reinforcing plates are fixedly arranged between any two adjacent side surfaces of the second protection wall, and one reinforcing plate is correspondingly arranged on one supporting rod.
5. A deep foundation pit supporting device as claimed in claim 4, wherein the connection between any reinforcing plate and the corresponding sleeve is by a tie-line.
6. The deep foundation pit supporting device according to claim 5, further comprising a base which is a concrete block horizontally laid on the bottom surface of the deep foundation pit, wherein the bottom of the protection net is provided with a plurality of fixing nails at intervals in the circumferential direction, the top of any fixing nail is fixedly connected with the bottom of the protection net, and the bottom of any fixing nail vertically penetrates downward through the base and is inserted into the bottom of the deep foundation pit.
7. The deep foundation pit supporting device according to claim 6, wherein the inside of any fixing nail is hollow, a plurality of grouting holes are provided on the side wall of the fixing nail, and any grouting hole is located inside the base.
8. The deep foundation pit supporting device according to claim 7, wherein a plurality of positioning columns are arranged on the side wall of any fixing nail at intervals, any positioning column is located inside the base, the positioning columns are hollow inside, and the free ends of the positioning columns are open.
9. The deep foundation pit supporting apparatus of claim 7, wherein the surface of the second protective wall and the upper surface of the foundation are both cast with an impermeable layer.
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| CN202121165501.7U CN214940212U (en) | 2021-05-27 | 2021-05-27 | Deep foundation pit supporting device |
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| CN202121165501.7U CN214940212U (en) | 2021-05-27 | 2021-05-27 | Deep foundation pit supporting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115110533A (en) * | 2022-06-23 | 2022-09-27 | 宁波越兴建设工程有限公司 | Anti concrete foundation ditch that splits |
| CN118390543A (en) * | 2024-07-01 | 2024-07-26 | 中建八局第四建设有限公司 | Deep foundation pit supporting device |
-
2021
- 2021-05-27 CN CN202121165501.7U patent/CN214940212U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115110533A (en) * | 2022-06-23 | 2022-09-27 | 宁波越兴建设工程有限公司 | Anti concrete foundation ditch that splits |
| CN115110533B (en) * | 2022-06-23 | 2023-12-19 | 宁波越兴建设工程有限公司 | Anticracking concrete foundation pit |
| CN118390543A (en) * | 2024-07-01 | 2024-07-26 | 中建八局第四建设有限公司 | Deep foundation pit supporting device |
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