CN115162350B - Support system and support method for cantilever beam plate under ultra-deep foundation pit vertical support condition - Google Patents
Support system and support method for cantilever beam plate under ultra-deep foundation pit vertical support condition Download PDFInfo
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- CN115162350B CN115162350B CN202210794517.7A CN202210794517A CN115162350B CN 115162350 B CN115162350 B CN 115162350B CN 202210794517 A CN202210794517 A CN 202210794517A CN 115162350 B CN115162350 B CN 115162350B
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000008093 supporting effect Effects 0.000 claims abstract description 107
- 238000010408 sweeping Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 239000004567 concrete Substances 0.000 claims description 9
- 238000004513 sizing Methods 0.000 claims description 9
- 239000011083 cement mortar Substances 0.000 claims description 7
- 238000007788 roughening Methods 0.000 claims description 4
- 239000002023 wood Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 11
- 238000010276 construction Methods 0.000 abstract description 10
- 238000009435 building construction Methods 0.000 abstract description 3
- 238000009415 formwork Methods 0.000 description 9
- 238000009432 framing Methods 0.000 description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 241001417527 Pempheridae Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3261—Safety-nets; Safety mattresses; Arrangements on buildings for connecting safety-lines
- E04G21/3266—Safety nets
Abstract
The invention relates to the technical field of building construction, and discloses a support system and a support method of a cantilever beam plate under the condition of vertical support of an ultra-deep foundation pit, wherein the support system comprises: the first supporting beam is arranged on a crown beam at the top of the foundation pit supporting pile and is arranged along the length direction of the crown beam; more than two second supporting beams, one end of which is erected on the first supporting beam, the other end of which is arranged in the outer wall of the basement, and the top end of which is provided with a plurality of positioning ribs; the scaffold structure comprises a vertical rod, a sweeping rod, a cross rod and a scissor support which are buckled together, wherein the lower end of the vertical rod is sleeved on the positioning rib, and the upper end of the vertical rod is provided with a template jacking; and the two ends of the safety flat net are fixedly arranged on the adjacent second supporting beams. When the cantilever beam plate under the condition of vertical support of the ultra-deep foundation pit is supported by the support system, less materials are needed, the steps of the erection support process are simple, and the construction cost is effectively reduced.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a support system and a support method for cantilever beam plates under the condition of vertical support of an ultra-deep foundation pit.
Background
With the acceleration of the urban process, land resources are becoming scarce, and the sites of public buildings and civil buildings are becoming narrower, so that the heights of the buildings are becoming higher. In public and civil buildings, especially high-rise or super high-rise buildings, along with the increase of the height, the buried depth of an underground structure is also increased, and corresponding foundation pit slope supports are often vertically supported by reinforced concrete piles, so that the slope is not easy to collapse.
In the front door or other positions of the overground part of a building, a cantilever beam slab structure with a larger size is usually arranged, and most of the cantilever beam slab structure is reinforced concrete, and reinforcing steel bars can be bound and poured only after a template is required to be erected during manufacturing. The lower end of the supporting system of the template needs to be propped against a stable supporting surface, and for high-rise or super high-rise buildings, the supporting system needs to be erected with a full-framing scaffold supporting system from the bottom of a foundation pit, a large amount of materials are required to be consumed up to the template of the cantilever beam slab structure, and a large amount of steel pipes, fasteners, square timber and the like are used for taking a steel pipe fastener type full-framing scaffold as an example; in addition, the construction engineering amount of the support system is large, and the labor cost of formwork supporting, formwork removing, material transferring and the like is high; in addition, the safety management difficulty is relatively high, and the support system is high in erection height, so that the support system is used for high formwork erection engineering, and the support system belongs to a dangerous large engineering range exceeding a certain scale according to the notification of problems related to construction quality [ 2018 ] 31 'project safety management regulations of the subsection division project with larger danger'.
On the other hand, the cantilever beam slab structure of a part of the building is large in length, and can overhang the outer edge line of the outer wall of the underground structure, namely, can extend to the outer side of the foundation pit.
Disclosure of Invention
The invention aims to solve the technical problems, and aims to provide a support system and a support method for a cantilever beam plate under the condition of vertical support of an ultra-deep foundation pit, wherein the support system can support the cantilever beam plate by using less materials, and the steps of the erecting and supporting process are simplified.
In order to achieve the above object, in one aspect, the present invention provides a support system for cantilever beam plates under an ultra-deep foundation pit vertical support condition, including: the first supporting beam is arranged on a crown beam at the top of the foundation pit supporting pile and is arranged along the length direction of the crown beam; more than two second supporting beams, one end of which is erected on the first supporting beam, the other end of which is arranged in the outer wall of the basement, and the top end of which is provided with a plurality of positioning ribs; the scaffold structure comprises a vertical rod, a sweeping rod, a cross rod and a scissor support which are buckled together, wherein the lower end of the vertical rod is sleeved on the positioning rib, and the upper end of the vertical rod is provided with a template jacking; and the two ends of the safety flat net are fixedly arranged on the adjacent second supporting beams.
Preferably, a sizing block is arranged between the first supporting beam and the crown beam, so that the first supporting beam is horizontally arranged; cement mortar or concrete is filled between the first support beam and the crown beam.
Preferably, the crown beam is provided with a plurality of dimples at positions opposite to the first support beam.
Preferably, the other end of the second support beam is fixedly connected with an outer wall scaffold of the basement.
Preferably, the length of the second support beam anchored into the basement outer wall is not less than half of the thickness of the basement outer wall; and the second supporting beam is welded with the steel bars in the outer wall of the basement.
Preferably, the first support beam and the second support beam are I-steel or square steel; and the positioning ribs are vertically welded on the top surface of the second supporting beam.
Preferably, the safety flat net is also provided with a wood springboard.
Preferably, a plurality of safety flat nets are arranged between the foundation pit supporting piles and the basement outer wall.
In order to achieve the above object, in another aspect, the present invention provides a method for supporting a cantilever beam plate under a vertical supporting condition of an ultra-deep foundation pit, which adopts the above supporting system for a cantilever beam plate under a vertical supporting condition of an ultra-deep foundation pit, comprising:
a first support beam is horizontally erected on a crown beam at the top of the foundation pit support pile;
erecting more than two second support beams between the first support beams and the basement outer wall, wherein one end of each second support beam is fixedly connected with the first support beam, the other end of each second support beam is anchored into the basement outer wall, a plurality of positioning ribs are fixedly arranged on the top surface of each second support beam, and a safety flat net is arranged between the adjacent second support beams;
and arranging a scaffold structure above the second support beam, sleeving the lower end of a vertical rod in the scaffold structure on the positioning rib, and fixedly connecting a template jacking at the top of the scaffold structure on a template to be supported.
Preferably, when a first supporting beam is horizontally erected on a crown beam at the top of a foundation pit supporting pile, firstly, roughening treatment is carried out on the crown beam to form a plurality of dents; then supporting sizing blocks between the first supporting beam and the crown beam to enable the first supporting beam to be horizontal; and finally, filling cement mortar or concrete between the first support beam and the crown beam, so that the first support beam and the crown beam are fixedly connected together.
According to the supporting system of the cantilever beam plate under the ultra-deep foundation pit vertical supporting condition, the foundation pit supporting piles are used as the bottom supporting structure of the supporting system, the first supporting beams are arranged on the crown beams, and the second supporting beams with one ends inserted into the outer wall of the basement are arranged on the first supporting beams, so that the supporting surface is formed below the scaffold structure, and finally, when the scaffold structure is arranged, the lower end is not required to be erected at the bottom of the foundation pit, so that the height of the scaffold structure is greatly reduced, materials are saved, the time for erecting the supporting system is shortened, and the construction efficiency is improved. In addition, the height of the supporting system is only the distance between the lower end of the cantilever beam plate and the second supporting beam, and after the height is reduced, the safety management difficulty of the construction site can be correspondingly reduced. In addition, the safety flat net between the adjacent second supporting beams can prevent the larger weight from falling, and the safety performance of the supporting system is effectively improved.
Drawings
Fig. 1 is a schematic structural view of an overhanging beam panel support system with ultra-deep foundation pit vertical support condition according to an embodiment of the invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
The reference numerals in the figures are:
11. foundation pit supporting piles; 12. a basement exterior wall; 13. slope; 14. a foundation pit; 15. a crown beam; 16. waist beam; 17. an outer wall scaffold; 18. overhanging beam plates; 21. a first support beam; 22. a second support beam; 23. a vertical rod; 24. a safety flat net; 25. positioning ribs; 26. sizing block.
Detailed Description
Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. In the present disclosure, the terms "comprising," "including," "having," "disposed in" and "having" are intended to be open-ended and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first," "second," and the like, are used merely as labels, and do not limit the number or order of their objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.
Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The embodiment discloses a cantilever beam plate's braced system under super dark foundation ditch vertical support condition, wherein cantilever beam plate is located super dark foundation ditch top, and this braced system establishes in cantilever beam plate's below for support cantilever beam plate's template, and then be convenient for carry out ligature reinforcing bar and pouring operation to cantilever beam plate. Fig. 1 shows the structure of the cantilever beam plate support system under the condition of vertical support of the ultra-deep foundation pit, and fig. 2 shows an enlarged structure of a portion a in fig. 1. Fig. 1 and 2 are side views, so that only the side structure of each component is shown.
Referring to fig. 1 and 2, the supporting system is disposed between a foundation pit supporting pile 11 and a basement outer wall 12, wherein the foundation pit supporting pile 11 is disposed at the junction of a foundation pit 14 and a side slope 13 for preventing the side slope 13 from landslide and collapse, a crown beam 15 and a wale 16 for connecting each foundation pit supporting pile 11 are disposed at the top and middle of the foundation pit supporting pile 11, and the wale 16 is disposed at the side of the foundation pit supporting pile 11 at regular intervals, and the foundation pit supporting piles 11 can form an integral structure by disposing the wale 16 and the crown beam 15, thereby improving the supporting effect of the foundation pit 14.
The support system includes: a first support beam 21, a second support beam 22, a scaffold structure and a safety flat net 24. The first supporting beam 21 is horizontally erected on the crown beam 15 along the length direction of the crown beam 15, in this embodiment, the first supporting beam 21 is made of i-steel with good rigidity, and the i-steel is a common material for building construction, so that the manufacturing is convenient. The second support beam 22 is also made of i-steel, one end of which is erected on the first support beam 21 and is welded and fixed with the first support beam 21, and the other end of which is buried in the basement outer wall 12, i.e. is fixedly connected with the basement outer wall 12. More than two second supporting beams 22 are arranged between the crown beam 15 and the basement outer wall 12, and the distance between the adjacent second supporting beams 22 can be set according to actual conditions. A plurality of positioning ribs 25 are arranged on the top of the second support beam 22 for fixing the upright 23 in the scaffold structure. The positioning ribs 25 are steel bars vertically welded on the top surface of the second support beam 22, the length is within the range of 6cm-12cm, and the arrangement interval of the positioning ribs 25 can be set according to the interval of the upright rods 23 in the scaffold structure. Of course, the first support beam 21 and the second support beam 22 may be selected according to the construction site steel material, for example, square steel may be used as the support beams.
The scaffold structure comprises a pole 23, a sweeping pole, a cross bar and a scissor stay which are mutually buckled together, and only the structure of the pole 23 is shown in the drawing for clearly showing more components. The connections between the uprights 23, the sweeper bars, the crossbars and the scissors are similar to those between the various elements of a full framing scaffold and will not be described in detail here. The upright 23 is made of steel pipe in this embodiment, and when the scaffold structure is erected, the lower end of the upright 23 is sleeved on the positioning rib 25, so that the upright 23 can be prevented from moving in the horizontal direction, and the stability of the scaffold structure can be improved. In addition, a formwork jacking is further arranged at the top end of the upright 23 and is used for supporting the formwork below the cantilever beam plate 18 in cooperation with square timber.
The safety flat net 24 is fixed at both ends to the adjacent second support beam 22, with one side fixed to the first support beam 21 and the other side fixed to the outer wall scaffold 17 of the basement. The safety flat net 24 can act as a fall protection, especially for larger objects and persons, and can improve the safety of the support system.
The supporting system of the cantilever beam plate under the ultra-deep foundation pit vertical supporting condition can greatly reduce the material consumption and the cost compared with the traditional full-framing scaffold directly reaching the bottom surface of the foundation pit 14 in practical application, and can greatly reduce the time and labor consumed in the whole supporting process along with the reduction of materials and the lowering of the supporting height, thereby effectively improving the construction efficiency. In addition, as the whole support system is low in height and the safety flat net 24 is arranged between the second support beams 22, the safety performance is improved, the difficulty of safety management of a construction site is further reduced, and the probability of safety accidents is also reduced.
In this embodiment, in order to ensure that the first support beam 21 can be horizontally disposed, a sizing block 26 is further disposed between the first support beam 21 and the crown beam 15, and by adjusting the thickness of the sizing block 26, the upper surface of the first support beam 21 can be horizontally disposed, thereby enabling the support system to form a stable support. By providing the sizing block 26, the levelness of the first support beam 21 can be adjusted, and a gap can be formed between the first support beam 21 and the crown beam 15. After filling the gaps with cement mortar or high-grade concrete, the first support beam 21 and the crown beam 15 can be formed into an integral structure, so that the two can be firmly connected together, and the stability of the support system is further improved. In addition, in order to improve the connection firmness of the first support beam 21 and the crown beam 15, a roughening treatment is further performed at the position of the crown beam 15 opposite to the first support beam 21, so that a plurality of dents are formed, and thus the subsequently filled cement mortar or concrete can be more tightly connected with the crown beam 15.
As shown in fig. 1 and 2, an outer wall scaffold 17 is usually disposed on the outer side of the basement outer wall 12, and in order to further improve the stability of the second support beam 22, after the left end of the second support beam 22 is buried in the basement outer wall 12, the second support beam 22 is fixedly connected with the outer wall scaffold 17. The rail in the outer wall scaffolding 17 is clamped together with the lower flange of the second support beam 22, for example, by means of clamps. In addition, the length of the second support beam 22 buried in the basement outer wall 12 should not be less than half the thickness of the basement outer wall 12, ensuring that the two can be firmly connected. In addition, the second support beam 22 and the reinforcing steel bars in the basement outer wall 12 can be welded together, so that the stability of connection between the two can be further improved.
In addition, a wooden springboard is further arranged on the safety flat net 24 on the second supporting beam 22, so that a constructor can conveniently move the constructor on the wooden springboard to finish the supporting of the scaffold structure.
In addition, as the foundation pit 14 is deeper, a plurality of safety flat nets 24 are arranged between the foundation pit supporting piles 11 and the basement outer wall 12 along the vertical direction, so that falling is prevented, and the safety performance of the supporting system is further improved. One end of the safety flat net 24 is connected to the outer wall scaffold 17, and the other end is connected to the waist beam 16, wherein the vertical distance between the safety flat nets 24 is not more than 10m, so as to achieve the best protection effect.
In this embodiment, a supporting method of a cantilever beam plate under an ultra-deep foundation pit vertical supporting condition is also disclosed, and is used for setting the supporting system, and the supporting method includes the following steps:
step S1: a first support beam 21 is horizontally erected on the crown beam 15 at the top of the foundation pit support pile 11.
The first support beam 21 is fixedly connected to the foundation pit support pile 11, and in this embodiment, firstly, roughening treatment is required to be performed on the crown beam 15 to form a plurality of dents; then, a sizing block 26 is supported between the first supporting beam 21 and the crown beam 15 to enable the first supporting beam 21 to be horizontal; finally, cement mortar or concrete is filled between the first support beam 21 and the crown beam 15, so that the first support beam 21 and the crown beam 15 are fixedly connected together.
The above has been presented as a way of fixedly connecting the first support beam 21 to the crown beam 15, and in other embodiments, other existing connecting structures may be used to connect the first support beam 21 to the crown beam 15.
Step S2: more than two second supporting beams 22 are erected between the first supporting beams 21 and the basement outer wall 12, one end of each second supporting beam 22 is fixedly connected with the first supporting beam 21, the other end of each second supporting beam 22 is anchored into the basement outer wall 12, a plurality of positioning ribs 25 are fixedly arranged on the top surfaces of the second supporting beams 22, and a safety flat net 24 is arranged between the adjacent second supporting beams 22.
Specifically, the first support beam 21 and the second support beam 22 are both profiled steel beams, and thus can be welded directly together. When the other end of the second support beam 22 is arranged in the basement outer wall 12, the second support beam 22 and the steel bars in the basement outer wall 12 can be bound together before the basement outer wall 12 is poured, and then the second support beam 22 and the basement outer wall 12 can be fixedly connected together after concrete is poured; or after the basement outer wall 12 is poured, holes are drilled in the basement outer wall 12 and the second support beams 22 are buried therein, and the fixed connection of the two can also be realized.
The positioning ribs 25 are selected from the reinforcing bars in this embodiment, and can be directly welded perpendicularly to the top surface of the second support beam 22 according to the interval between the upright bars 23, so as to form a stable connection. The two ends of the safety flat net 24 can be directly bound on the two adjacent second supporting beams 22, so that the two can not be separated, and the falling of the heavy objects can be prevented.
Step S3: and a scaffold structure is arranged above the second support beam 22, the lower end of a vertical rod 23 in the scaffold structure is sleeved on a positioning rib 25, and a template jacking at the top of the scaffold structure is fixedly connected to a template to be supported.
The scaffold structure can adopt the existing full-house scaffold, wherein each upright pole 23, the floor sweeping pole, the cross rod and the scissor struts are all steel pipes, and each steel pipe can be buckled together by adopting a buckle. The lower extreme of pole setting 23 then can directly overlap on location muscle 25, both can realize the location, can also prevent that horizontal displacement from appearing in the lower extreme of pole setting 23, has promoted the stability of support. The formwork jacking is arranged at the top end of the upright rod 23 and is fixedly connected with the formwork to be supported, and the top surface of the formwork and the bottom surface of the cantilever beam plate 18 are required to be ensured to be the same in elevation when the formwork jacking is carried out. After the erection is completed, the subsequent reinforcement binding and concrete pouring work of the cantilever beam plates 18 can be performed.
By the supporting method of the cantilever beam plate under the ultra-deep foundation pit vertical supporting condition, material consumption and cost can be greatly reduced, the time and labor consumed in the whole supporting process can be greatly reduced along with the reduction of materials and the lowering of supporting height, and the construction efficiency is effectively improved. In addition, as the whole support system is low in height and the safety flat net 24 is arranged between the second support beams 22, the safety performance of the whole support system is greatly improved, the difficulty of safety management of a construction site is further reduced, and the probability of safety accidents is also reduced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The utility model provides a supporting system of cantilever beam board under super dark foundation ditch vertical support condition which characterized in that includes:
the first supporting beam is arranged on a crown beam at the top of the foundation pit supporting pile and is arranged along the length direction of the crown beam;
more than two second supporting beams, one end of which is erected on the first supporting beam, the other end of which is arranged in the outer wall of the basement, and the top end of which is provided with a plurality of positioning ribs;
the scaffold structure comprises a vertical rod, a sweeping rod, a cross rod and a scissor support which are buckled together, wherein the lower end of the vertical rod is sleeved on the positioning rib, and the upper end of the vertical rod is provided with a template jacking;
the two ends of the safety flat net are fixedly arranged on the adjacent second supporting beams; wherein the method comprises the steps of
A sizing block is arranged between the first supporting beam and the crown beam, so that the first supporting beam is horizontally arranged; cement mortar or concrete is filled between the first support beam and the crown beam.
2. The support system of the cantilever beam plate under the ultra-deep foundation pit vertical support condition according to claim 1, wherein,
and a plurality of dents are arranged at the position of the crown beam opposite to the first supporting beam.
3. The support system of the cantilever beam plate under the ultra-deep foundation pit vertical support condition according to claim 1, wherein,
the other end of the second supporting beam is fixedly connected with an outer wall scaffold of the basement.
4. The support system of the cantilever beam plate under the ultra-deep foundation pit vertical support condition according to claim 1, wherein,
the length of the second supporting beam anchored into the basement outer wall is not less than half of the thickness of the basement outer wall;
and the second supporting beam is welded with the steel bars in the outer wall of the basement.
5. The support system of the cantilever beam plate under the ultra-deep foundation pit vertical support condition according to any one of the claim 1 to 4, wherein,
the first support beam and the second support beam are I-steel or square steel;
and the positioning ribs are vertically welded on the top surface of the second supporting beam.
6. The support system of the cantilever beam plate under the ultra-deep foundation pit vertical support condition according to any one of the claim 1 to 4, wherein,
the safety flat net is also provided with a wood springboard.
7. The support system of the cantilever beam plate under the ultra-deep foundation pit vertical support condition according to any one of the claim 1 to 4, wherein,
and a plurality of safety flat nets are arranged between the foundation pit supporting piles and the basement outer wall.
8. A method for supporting a cantilever beam plate under an ultra-deep foundation pit vertical support condition, which adopts the supporting system for the cantilever beam plate under the ultra-deep foundation pit vertical support condition as claimed in any one of claims 1 to 7, and is characterized by comprising the following steps:
a first support beam is horizontally erected on a crown beam at the top of the foundation pit support pile;
erecting more than two second support beams between the first support beams and the basement outer wall, wherein one end of each second support beam is fixedly connected with the first support beam, the other end of each second support beam is anchored into the basement outer wall, a plurality of positioning ribs are fixedly arranged on the top surface of each second support beam, and a safety flat net is arranged between the adjacent second support beams;
and arranging a scaffold structure above the second support beam, sleeving the lower end of a vertical rod in the scaffold structure on the positioning rib, and fixedly connecting a template jacking at the top of the scaffold structure on a template to be supported.
9. The method for supporting the cantilever beam plate under the ultra-deep foundation pit vertical supporting condition according to claim 8, wherein,
when a first supporting beam is horizontally erected on a crown beam at the top of a foundation pit supporting pile, firstly, roughening treatment is carried out on the crown beam to form a plurality of dents; then supporting sizing blocks between the first supporting beam and the crown beam to enable the first supporting beam to be horizontal; and finally, filling cement mortar or concrete between the first support beam and the crown beam, so that the first support beam and the crown beam are fixedly connected together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210794517.7A CN115162350B (en) | 2022-07-07 | 2022-07-07 | Support system and support method for cantilever beam plate under ultra-deep foundation pit vertical support condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210794517.7A CN115162350B (en) | 2022-07-07 | 2022-07-07 | Support system and support method for cantilever beam plate under ultra-deep foundation pit vertical support condition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115162350A CN115162350A (en) | 2022-10-11 |
| CN115162350B true CN115162350B (en) | 2024-04-16 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101082995B1 (en) * | 2010-12-08 | 2011-11-11 | 박석진 | Buried precast concrete wale for constructing basement wall and the method for constructing basement wall |
| CN202767488U (en) * | 2012-07-23 | 2013-03-06 | 青岛东亚建筑装饰有限公司 | Steel pipe fastener hanging type handling frame |
| CN103938634A (en) * | 2014-03-22 | 2014-07-23 | 王继远 | Deep foundation pit supporting structure and construction method |
| CN105569326A (en) * | 2015-03-16 | 2016-05-11 | 中国建筑第四工程局有限公司 | Handling frame without support and exterior wall construction method thereof |
| CN107152160A (en) * | 2017-06-22 | 2017-09-12 | 中国五冶集团有限公司 | A kind of shuttering supporting builder's jack operation platform erection method |
| AU2017202444A1 (en) * | 2016-12-19 | 2018-07-05 | Voideck Ipco Limited | A void platform and a method for providing a platform support across a building void |
| CN211228607U (en) * | 2019-11-25 | 2020-08-11 | 苏州二建建筑集团有限公司 | Integrally formed construction structure of outer wall and bottom plate of cast-in-place concrete structure of structure |
| CN211899558U (en) * | 2019-12-27 | 2020-11-10 | 上海建工七建集团有限公司 | Handling frame encorbelments |
| CN112431407A (en) * | 2020-12-28 | 2021-03-02 | 山东天齐置业集团股份有限公司 | Construction method for formwork of building main body cantilever structure |
-
2022
- 2022-07-07 CN CN202210794517.7A patent/CN115162350B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101082995B1 (en) * | 2010-12-08 | 2011-11-11 | 박석진 | Buried precast concrete wale for constructing basement wall and the method for constructing basement wall |
| CN202767488U (en) * | 2012-07-23 | 2013-03-06 | 青岛东亚建筑装饰有限公司 | Steel pipe fastener hanging type handling frame |
| CN103938634A (en) * | 2014-03-22 | 2014-07-23 | 王继远 | Deep foundation pit supporting structure and construction method |
| CN105569326A (en) * | 2015-03-16 | 2016-05-11 | 中国建筑第四工程局有限公司 | Handling frame without support and exterior wall construction method thereof |
| AU2017202444A1 (en) * | 2016-12-19 | 2018-07-05 | Voideck Ipco Limited | A void platform and a method for providing a platform support across a building void |
| CN107152160A (en) * | 2017-06-22 | 2017-09-12 | 中国五冶集团有限公司 | A kind of shuttering supporting builder's jack operation platform erection method |
| CN211228607U (en) * | 2019-11-25 | 2020-08-11 | 苏州二建建筑集团有限公司 | Integrally formed construction structure of outer wall and bottom plate of cast-in-place concrete structure of structure |
| CN211899558U (en) * | 2019-12-27 | 2020-11-10 | 上海建工七建集团有限公司 | Handling frame encorbelments |
| CN112431407A (en) * | 2020-12-28 | 2021-03-02 | 山东天齐置业集团股份有限公司 | Construction method for formwork of building main body cantilever structure |
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| CN115162350A (en) | 2022-10-11 |
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