CN211340800U - Super dark foundation ditch earthwork excavation platform structure - Google Patents
Super dark foundation ditch earthwork excavation platform structure Download PDFInfo
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- CN211340800U CN211340800U CN201922309793.6U CN201922309793U CN211340800U CN 211340800 U CN211340800 U CN 211340800U CN 201922309793 U CN201922309793 U CN 201922309793U CN 211340800 U CN211340800 U CN 211340800U
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- 238000009412 basement excavation Methods 0.000 title claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 82
- 239000010959 steel Substances 0.000 claims abstract description 82
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000003466 welding Methods 0.000 claims description 13
- 210000003205 muscle Anatomy 0.000 claims description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 230000002787 reinforcement Effects 0.000 claims description 9
- 238000011065 in-situ storage Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 4
- 239000002689 soil Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 25
- 239000000463 material Substances 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000013461 design Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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Abstract
The utility model provides an ultra-deep foundation ditch earthwork excavation platform structure, including underground continuous wall and soleplate, still include frame support and platform beam slab, the frame supports including platform pile group, the platform stand group, strengthen the bridging group between horizontal connecting rod group and stand, the top and the fixed connection of platform stand's bottom one-to-one insertion platform stake, be provided with at least three-layer reinforced concrete level between first row platform stand and the underground continuous wall and prop, the platform stand is at the base slab thickness within range fixedly connected with stagnant water board, the platform stand is at the pre-buried channel-section steel of platform beam slab thickness within range fixedly connected with. The utility model discloses set up this platform structure in order to satisfy the transportation of deep basal pit earthwork, construction convenience, construction process is few, and the efficiency of construction is high, as the place of stacking of light-duty material simultaneously, has solved underground structure construction stage, the problem that the peripheral place of foundation ditch is not enough.
Description
Technical Field
The utility model belongs to the technical field of deep basal pit earthwork excavation, especially a platform structure that is used for single ring to prop super deep basal pit earthwork excavation.
Background
With the rapid development of super high-rise buildings, ultra-deep foundation pit engineering and complex foundation pit engineering are increasing day by day. How to make extra-deep foundation pit and complex foundation pit earthwork excavation and ensure the construction safety and quality of the foundation pit is a new problem for engineering technicians. The deep foundation pit earthwork construction progress and the supporting structure construction are the key for restricting the total construction period of the foundation pit construction, and the key for shortening the earthwork excavation construction period is to design an earthwork transportation channel on the premise of meeting the enclosure sealing and maintenance time of the supporting structure, so that the earthwork transportation efficiency is improved. When the ultra-deep foundation pit engineering construction site is narrow and small, and the foundation pit excavation area and the excavation depth are large, a reasonable earthwork transportation channel needs to be arranged to guarantee the construction period and safety of the deep foundation pit earthwork excavation construction.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an ultra-deep foundation ditch earthwork excavation platform structure, it is narrow and small to solve ultra-deep foundation ditch engineering job site place, and foundation ditch excavation area is great with the excavation degree of depth, does not have reasonable earthwork transport corridor, can't guarantee the time limit for a project and the safe technical problem of deep foundation ditch earthwork excavation construction.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an earth excavation platform structure of an ultra-deep foundation pit comprises an underground continuous wall clinging to the side wall of the foundation pit, a foundation slab in the foundation pit, a frame support fixedly connected with the underground continuous wall through a reinforced concrete horizontal support, and a platform beam slab fixedly connected with the top of the frame support,
the frame support comprises a platform pile group, a platform column group, a horizontal connecting rod group and a reinforced cross brace group between columns, the platform pile group is buried in the foundation pit soil body, the platform piles in the platform pile group are arranged in rows, each row comprises two platform piles, the platform pile group sequentially comprises a first row of platform piles, … …, an n-1 row of platform piles and an n row of platform piles according to the distance close to the underground continuous wall, n is more than or equal to 3,
the number of the platform stand columns in the platform stand column group is the same as that of the platform piles, the bottom of each platform stand column is inserted into the top of each platform pile in a one-to-one mode and fixedly connected with the top of each platform pile, the platform stand columns sequentially become a first row of platform stand columns, … …, an n-1 th row of platform stand columns and an nth row of platform stand columns, at least three layers of reinforced concrete horizontal supports are arranged between the first row of platform stand columns and an underground continuous wall, a foundation slab is located below the first layer of reinforced concrete horizontal supports and above the platform piles, water stop plates are fixedly connected to the platform stand columns within the thickness range of the foundation slab, and embedded channel steel is fixedly connected to the platform stand columns within the.
The platform pile is a cast-in-situ bored pile, a pile reinforcement cage is arranged in the cast-in-situ bored pile, and the pile reinforcement cage comprises longitudinal spiral ribs and clamping column closing ribs.
The platform stand is steel lattice column, card post binding off muscle sets up the twice, is located the bottom of platform stand and the below of soleplate respectively, and the platform stand inserts in proper order in the card post binding off muscle, and the degree of depth that the platform stand inserted in the platform stake is not less than 3m, the platform stand includes angle steel post and steel lacing plate, and the bottom of platform stand sets up the main muscle single face welding of two shaped steel and platform stake, and welding length is not less than 10d of main muscle.
The platform beam slab is of a reinforced concrete structure, the platform beam slab comprises an outer side straight section, an inclined section and an inner side straight section, the height of the top of the outer side straight section is higher than that of the inner side straight section, the outer side straight section is arranged at the tops of the underground continuous wall and the first row of platform columns, the inclined section is arranged at the tops of the first row of platform columns and the n-1 th row of platform columns, the inner side straight section is arranged at the tops of the n-1 th row of platform columns and the n-1 th row of platform columns, and the slope angle of the inclined section is 1: 8, the height of the top mark of the platform upright post is 100mm lower than that of the top mark of the platform beam plate,
the platform beam slab comprises a platform slab and a platform beam, wherein a bearing piece is arranged at the connecting position of the lower side of the platform beam and the steel lattice column, and the bearing piece is an angle steel or a steel plate.
The outer side end of the topmost reinforced concrete horizontal support is fixedly connected to the top of the underground continuous wall, and the inner side end of the topmost reinforced concrete horizontal support is fixedly connected to the tops of the first row of platform stand columns.
The horizontal connecting rod group comprises horizontal connecting rods which are arranged in a layered mode by avoiding the reinforced concrete horizontal struts from the upper portion of the foundation slab, each layer of horizontal connecting rod comprises a longitudinal connecting rod and a transverse connecting rod, each layer of horizontal connecting rod is sequentially connected with adjacent platform stand columns, the outer side end portion of each longitudinal connecting rod extends until the longitudinal connecting rod is connected to the side wall of the underground continuous wall, and the longitudinal connecting rods and the underground continuous wall are directly fixedly connected through chemical steel bar planting.
The horizontal connecting rod is a double-spliced channel steel, the horizontal connecting rod is fixedly connected with the platform stand column through a steel batten plate, and the steel batten plate is fully welded with the horizontal connecting rod and the platform stand column.
The inter-column reinforcing cross brace group comprises reinforcing cross braces which are arranged between frames formed by each layer of horizontal connecting rods and the platform columns in a layered mode,
the included angle between the reinforced scissor supports and the horizontal direction is not more than 55 degrees, the reinforced scissor supports are welded and connected with the horizontal connecting rod and the platform upright column,
strengthen the bridging and be the channel-section steel, strengthen bridging and pass through steel batten plate and platform stand fixed connection, strengthen bridging and steel batten plate trilateral welding connection, steel batten plate and platform stand full weld are connected.
The embedded channel steel is horizontally connected to two limbs of the angle steel column in a corresponding and vertical full-welded mode, eight embedded channel steel bodies are arranged, and the opening direction of the channel steel on the same side faces the inner side relatively.
The water stop plates are horizontally and correspondingly vertical to two limbs of the angle steel column, the water stop plates are arranged along the inner side and the outer side of the angle steel column and are respectively an outer plate and an inner plate, and the outer plate and the inner plate are L-shaped.
Compared with the prior art the utility model has the following characteristics and beneficial effect:
the utility model is used for single ring props super deep basal pit earthwork excavation, sets up this platform structure in order to satisfy the transportation of deep basal pit earthwork, and the platform stake can be under construction in the engineering pile work progress in step, construction convenience, and the work progress is few, and the efficiency of construction is high. Not only saves the construction period of the platform pile, but also avoids the cost caused by secondary approach of pile foundation machinery, and reduces the construction cost.
The utility model discloses utilize platform beam slab as providing unearthed ramp for foundation ditch earthwork excavation, narrow in the peripheral place of foundation ditch, for foundation ditch earthwork excavation provides unearthed ramp under the great condition of degree of depth, improved the conveying efficiency of fortune native car, reduced large-scale machinery use quantity, gained good economic benefits. The platform structural steel can be used as a stacking place of light materials, and the problem that the ground around a foundation pit is not enough in the underground structure construction stage is solved.
The utility model relates to a platform device that single ring propped ultra-deep foundation ditch earthwork excavation, after underground structure construction was accomplished, the platform device need be demolishd. Because the lattice column is made by welding the angle steel and the steel batten plate, the lattice column can be recycled after being dismantled, the construction cost is reduced, and the economic benefit is good.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Figure 1 is the utility model discloses ultra-deep foundation ditch earthwork excavation platform structure sketch.
Fig. 2 is a schematic view of the cross-sectional structure a-a of fig. 1 according to the present invention.
Fig. 3 is a schematic cross-sectional view of the cross-section B-B in fig. 1 according to the present invention.
Fig. 4 is a schematic structural diagram of the platform column of the present invention.
Fig. 5 is a schematic view of the connection structure between the platform column and the platform beam plate of the present invention.
Figure 6 is a schematic cross-sectional view of C-C of figure 4 according to the present invention.
Figure 7 is a cross-sectional view of D-D of figure 5 according to the present invention.
Fig. 8 is a schematic structural view of the water stop plate of the present invention.
Reference numerals: 1-platform pile group, 2-underground continuous wall, 3-reinforced concrete horizontal support, 31-first layer reinforced concrete horizontal support, 32-topmost layer reinforced concrete horizontal support, 4-platform vertical column group, 41-first row of platform vertical columns, 42-nth-1 row of platform vertical columns, 43-nth row of platform vertical columns, 5-horizontal connecting rod group, 51-longitudinal connecting rod, 52-transverse connecting rod, 6-inter-vertical column reinforcing scissor support group, 7-platform beam plate, 71-outer side straight section, 72-inclined section, 73-inner side straight section, 8-foundation bottom plate, 9-water stop plate, 91-outer plate, 92-inner plate, 10-angle steel column, 11-steel batten plate, 12-embedded channel steel, 13-clamping column rib closing-in and 14-bearing piece.
Detailed Description
Referring to fig. 1-8, the ultra-deep foundation pit earth excavation platform structure comprises an underground continuous wall 2 clinging to the side wall of the foundation pit, a foundation bottom plate 8 in the foundation pit, a frame support fixedly connected with the underground continuous wall 2 through a reinforced concrete horizontal support 3, and a platform beam plate 7 fixedly connected with the top of the frame support.
The frame support comprises a platform pile group 1, a platform column group 4, a horizontal connecting rod group 5 and a column reinforcing cross brace group 6, wherein the platform pile group 1 is buried in foundation pit soil, platform piles in the platform pile group 1 are arranged in rows, each row of platform piles comprises two platform piles, the platform pile group 1 sequentially comprises a first row of platform piles, … …, an n-1 row of platform piles and an n row of platform piles according to the distance close to the underground diaphragm wall 2, and n is larger than or equal to 3. In this embodiment, n = 4.
The platform pile is a cast-in-situ bored pile, a pile reinforcement cage is arranged in the cast-in-situ bored pile, and the pile reinforcement cage comprises longitudinal spiral ribs and clamping column closing ribs. The pile length is determined according to the design requirement bearing capacity and an engineering geological exploration report. In the embodiment, the pile diameter is 800mm, the pile length is 30m, the main reinforcement is 12mmC22mm, the spiral stirrup C10mm @200mm, and the reinforcement stirrup C16mm @2000 mm.
The number of the platform columns in the platform column group 4 is the same as that of the platform columns, and the bottoms of the platform columns are correspondingly inserted into the tops of the platform columns one by one and are fixedly connected, so that the first row of platform columns 41 and … …, the (n-1) th row of platform columns 42 and the nth row of platform columns 43 are formed in sequence. The platform stand is steel lattice column, card post binding off muscle 13 sets up the twice, is located the bottom of platform stand and 8 below of soleplate respectively, and the platform stand inserts in proper order in card post binding off muscle 13, and the degree of depth that the platform stand inserted in the platform stake is not less than 3m, the platform stand includes angle steel post 10 and steel lacing plate 11, and the bottom of platform stand sets up the main muscle single face welding of two shaped steel and platform stake, and welding length is not less than the 10d of main muscle. In this embodiment, the angle steel column is L180mm × 18mm angle steel, and the steel batten plate is a steel plate with a thickness of 14 mm.
At least three layers of reinforced concrete horizontal braces 3 are arranged between the first row of platform upright columns 41 and the underground continuous wall 2, the foundation slab 8 is positioned below the first layer of reinforced concrete horizontal braces 31 and above the platform piles, and the platform upright columns are fixedly connected with water stop plates 9 within the thickness range of the foundation slab 8. The water stop plates 9 are horizontally and correspondingly vertical to two limbs of the angle steel column 10, the water stop plates 9 are arranged along the inner side and the outer side of the angle steel column 10 and are respectively an outer plate 91 and an inner plate 92, and the outer plate 91 and the inner plate 92 are both L-shaped. In this embodiment, the water stop plate is made of a steel plate with a thickness of 10 mm.
The platform upright post is fixedly connected with embedded channel steel 12 in the thickness range of the platform beam plate 7. The embedded channel steel 12 is horizontally and vertically connected to two limbs of the angle steel column 10 in a full-welding mode, eight embedded channel steels are arranged, and the opening directions of the channel steels on the same side face the inner side oppositely. In this embodiment, the embedded channel steel can be provided with a 16a channel steel with a length of 750mm along the supporting axis direction.
The outer end of the top reinforced concrete horizontal support 32 is fixedly connected to the top of the underground continuous wall 2, and the inner end of the top reinforced concrete horizontal support 32 is fixedly connected to the top of the first row of platform columns.
The platform beam slab 7 is of a reinforced concrete structure, the platform beam slab 7 comprises an outer side straight section 71, an inclined section 72 and an inner side straight section 73, the top height of the outer side straight section 71 is higher than that of the inner side straight section 73, the outer side straight section 71 is arranged at the tops of the underground continuous wall 2 and the first row of platform columns 41, the inclined section 72 is arranged at the tops of the first row of platform columns 41 and the n-1 th row of platform columns 42, and the inner side straight section 73 is arranged at the tops of the n-1 th row of platform columns 42 and the n-1 th row of platform columns 43. In this embodiment, the soil-discharging slope-setting angle of the inclined section 72 is 1: 8, the height of the top mark of the platform upright post is 100mm lower than that of the top mark of the platform beam plate 7.
The horizontal connecting rod group 5 comprises horizontal connecting rods which are arranged in a layered mode and avoid the reinforced concrete horizontal support 3 from the upper side of the foundation slab 8, each layer of horizontal connecting rod comprises a longitudinal connecting rod 51 and a transverse connecting rod 52, each layer of horizontal connecting rod is sequentially connected with adjacent platform columns, the outer end of each longitudinal connecting rod 51 extends until the outer end is connected to the side wall of the underground continuous wall 2, and the longitudinal connecting rods 51 are directly fixedly connected with the underground continuous wall 2 through chemical steel bar planting. In this embodiment, the chemical bar planting adopts 6mmC25 reinforcing bar, and the bar planting degree of depth is 400 mm.
The horizontal connecting rod is a double-spliced channel steel, such as a 28b channel steel. The horizontal connecting rod passes through steel batten plate 11 and platform stand fixed connection, steel batten plate 11 and horizontal connecting rod and platform stand are all welded fully and are connected.
The inter-column reinforcing cross brace group 6 comprises reinforcing cross braces which are arranged between frames formed by each layer of horizontal connecting rods and platform columns in a layered mode. The included angle between the reinforced scissor supports and the horizontal direction is not more than 55 degrees, and the reinforced scissor supports, the horizontal connecting rod and the platform upright post are all welded and connected. The reinforcing scissor brace is a channel steel, such as a 28b channel steel. Strengthen the bridging through steel batten plate 11 and platform stand fixed connection, strengthen bridging and steel batten plate 11 trilateral welding connection, steel batten plate 11 and platform stand full weld are connected.
The construction method of the ultra-deep foundation pit earthwork excavation platform structure comprises the following construction steps:
step one, constructing an underground continuous wall 2.
Step two, constructing the platform pile: designing the row number of the platform piles, performing drilling construction according to design requirements, cleaning holes of the formed pile holes after drilling is finished, then machining and hoisting pile reinforcement cages, and performing secondary hole cleaning.
Step three, processing, welding and hoisting the platform stand column: the platform stand column is processed on site and assembled, a water stop plate 9 and an embedded channel steel 12 are fixedly connected to preset positions on the platform stand column, the platform stand column is hung to a pile reinforcing cage opening by a crawler crane, the platform stand column guarantees perpendicularity by dead weight, the platform stand column is slowly placed into the opening to the preset positions, perpendicularity of two surfaces of adjacent platform stand columns is checked by a leveling ruler, and finally concrete of the platform pile is poured underwater.
And fourthly, binding 8 reinforcing steel bars of the foundation slab and then pouring 8 concrete of the foundation slab.
And fifthly, constructing the reinforced concrete horizontal braces 3 layer by layer, and fixedly connecting the reinforced concrete horizontal braces 3 with the underground continuous wall 2 and the platform upright columns.
Step six, constructing a platform beam plate 7: and constructing each section of the platform beam plate 7 on the top of the platform upright post and carrying out slope setting.
Seventhly, installing a reinforced cross brace group 6 and a horizontal connecting rod group between the vertical columns: all the upright posts are connected with the lattice columns through the steel batten plates 11, all the horizontal connecting rods are installed before the excavation of the lower earthwork, and the rear part of the platform device is used and detached.
Claims (9)
1. The utility model provides an ultra-deep foundation ditch earthwork excavation platform structure which characterized in that: comprises an underground continuous wall (2) clinging to the side wall of the foundation pit, a foundation slab (8) in the foundation pit, a frame support fixedly connected with the underground continuous wall (2) through a reinforced concrete horizontal support (3) and a platform beam slab (7) fixedly connected with the top of the frame support,
the frame support comprises a platform pile group (1), a platform column group (4), a horizontal connecting rod group (5) and a reinforced cross brace group (6) between columns, wherein the platform pile group (1) is buried in foundation pit soil, the platform piles in the platform pile group (1) are arranged in rows, each row comprises two platform piles, the platform pile group (1) sequentially comprises a first row of platform piles, … …, an n-1 th row of platform piles and an n-th row of platform piles according to the distance close to the underground continuous wall (2), n is more than or equal to 3,
the number of the platform columns in the platform column group (4) is the same as that of the platform columns, the bottoms of the platform columns are inserted into the tops of the platform columns in a one-to-one mode and are fixedly connected, the platform columns sequentially become a first row of platform columns (41), … …, an n-1 th row of platform columns (42) and an n th row of platform columns (43), at least three layers of reinforced concrete horizontal braces (3) are arranged between the first row of platform columns (41) and an underground continuous wall (2), a foundation slab (8) is located below the first layer of reinforced concrete horizontal braces (31) and above the platform columns, the platform columns are fixedly connected with water stop plates (9) within the thickness range of the foundation slab (8), and the platform columns are fixedly connected with channel steel embedded channels (12) within the thickness range of a platform beam slab (7).
2. The ultra-deep foundation pit earth excavation platform structure of claim 1, characterized in that: the platform pile is a cast-in-situ bored pile, a pile reinforcement cage is arranged in the cast-in-situ bored pile, and the pile reinforcement cage comprises longitudinal spiral ribs and clamping column closing ribs.
3. The ultra-deep foundation pit earth excavation platform structure of claim 2, wherein: the platform stand is steel lattice column, card post binding off muscle (13) set up the twice, are located the bottom of platform stand and the below of soleplate (8) respectively, and the platform stand inserts card post binding off muscle (13) in proper order, and the degree of depth that the platform stand inserted in the platform stake is not less than 3m, the platform stand includes angle steel post (10) and steel lacing plate (11), and the bottom of platform stand sets up the main muscle single face welding of two shaped steel and platform stake, and welding length is not less than the 10d of main muscle.
4. The ultra-deep foundation pit earth excavation platform structure of claim 3, wherein: the platform beam slab (7) is of a reinforced concrete structure, the platform beam slab (7) comprises an outer side straight section (71), an inclined section (72) and an inner side straight section (73), the height of the top of the outer side straight section (71) is higher than that of the inner side straight section (73), the outer side straight section (71) is arranged at the tops of the underground continuous wall (2) and the first row of platform columns (41), the inclined section (72) is arranged at the tops of the first row of platform columns (41) and the n-1 th row of platform columns (42), the inner side straight section (73) is arranged at the tops of the n-1 th row of platform columns (42) and the n-1 th row of platform columns (43), and the slope releasing angle of the inclined section (72) is 1: 8, the top elevation of the platform upright post is 100mm lower than that of the platform beam plate (7),
platform beam slab (7) are including platform slab and platform roof beam, the downside of platform roof beam is equipped with support (14) with the hookup location of steel lattice column, support (14) are angle steel or steel sheet.
5. The ultra-deep foundation pit earth excavation platform structure of claim 4, wherein: the outer side end of the topmost reinforced concrete horizontal support (32) is fixedly connected to the top of the underground continuous wall (2), and the inner side end of the topmost reinforced concrete horizontal support (32) is fixedly connected to the tops of the first row of platform columns.
6. The ultra-deep foundation pit earth excavation platform structure of claim 3, wherein: the horizontal connecting rod group (5) comprises horizontal connecting rods which are arranged in a layered manner by avoiding the reinforced concrete horizontal support (3) from the upper part of the foundation slab (8), each layer of horizontal connecting rod comprises a longitudinal connecting rod (51) and a transverse connecting rod (52), each layer of horizontal connecting rod is sequentially connected with adjacent platform upright posts, the outer end part of the longitudinal connecting rod (51) extends until the outer end part is connected to the side wall of the underground continuous wall (2), the longitudinal connecting rod (51) is directly fixedly connected with the underground continuous wall (2) by adopting chemical steel bar planting,
the horizontal connecting rod is the double pin channel-section steel, and the horizontal connecting rod passes through steel batten plate (11) and platform stand fixed connection, steel batten plate (11) and horizontal connecting rod and platform stand are all fully welded and are connected.
7. The ultra-deep foundation pit earth excavation platform structure of claim 6, wherein: the inter-column reinforcing cross brace group (6) comprises reinforcing cross braces which are arranged between frames formed by each layer of horizontal connecting rods and the platform columns in a layered mode,
the included angle between the reinforced scissor supports and the horizontal direction is not more than 55 degrees, the reinforced scissor supports are welded and connected with the horizontal connecting rod and the platform upright column,
strengthen the bridging and be the channel-section steel, strengthen bridging and pass through steel batten plate (11) and platform stand fixed connection, strengthen bridging and steel batten plate (11) trilateral welding connection, steel batten plate (11) and platform stand full weld are connected.
8. The ultra-deep foundation pit earth excavation platform structure of claim 3, wherein: the embedded channel steel (12) is horizontally and correspondingly vertically connected to two limbs of the angle steel column (10) in a full-welding mode, eight embedded channels are arranged, and the channel steel opening direction on the same side faces towards the inner side relatively.
9. The ultra-deep foundation pit earth excavation platform structure of claim 3, wherein: the water stop plates (9) are horizontally and correspondingly vertical to two limbs of the angle steel column (10), the water stop plates (9) are arranged along the inner side and the outer side of the angle steel column (10) and are respectively an outer plate (91) and an inner plate (92), and the outer plate (91) and the inner plate (92) are L-shaped.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922309793.6U CN211340800U (en) | 2019-12-20 | 2019-12-20 | Super dark foundation ditch earthwork excavation platform structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922309793.6U CN211340800U (en) | 2019-12-20 | 2019-12-20 | Super dark foundation ditch earthwork excavation platform structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847188A (en) * | 2019-12-20 | 2020-02-28 | 中建一局集团建设发展有限公司 | A kind of ultra-deep foundation pit earthwork excavation platform structure and construction method thereof |
| CN112431224A (en) * | 2020-12-22 | 2021-03-02 | 中建一局集团建设发展有限公司 | Short formwork support method in reverse construction method of basement structure |
| CN113106986A (en) * | 2021-05-14 | 2021-07-13 | 城地建设集团有限公司 | Novel channel steel lattice stiff upright pile and application method thereof |
-
2019
- 2019-12-20 CN CN201922309793.6U patent/CN211340800U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847188A (en) * | 2019-12-20 | 2020-02-28 | 中建一局集团建设发展有限公司 | A kind of ultra-deep foundation pit earthwork excavation platform structure and construction method thereof |
| CN112431224A (en) * | 2020-12-22 | 2021-03-02 | 中建一局集团建设发展有限公司 | Short formwork support method in reverse construction method of basement structure |
| CN113106986A (en) * | 2021-05-14 | 2021-07-13 | 城地建设集团有限公司 | Novel channel steel lattice stiff upright pile and application method thereof |
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Granted publication date: 20200825 |