CN112502212B - Rapid assembly platform suitable for taking soil in foundation pit and complete construction process - Google Patents
Rapid assembly platform suitable for taking soil in foundation pit and complete construction process Download PDFInfo
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- CN112502212B CN112502212B CN202011443652.4A CN202011443652A CN112502212B CN 112502212 B CN112502212 B CN 112502212B CN 202011443652 A CN202011443652 A CN 202011443652A CN 112502212 B CN112502212 B CN 112502212B
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- 239000002689 soil Substances 0.000 title claims abstract description 95
- 238000010276 construction Methods 0.000 title claims description 21
- 238000000034 method Methods 0.000 title claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 claims description 10
- 238000009826 distribution Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 3
- 239000000725 suspension Substances 0.000 description 6
- 230000007547 defect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000005527 soil sampling Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
- E02F3/413—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device
- E02F3/4133—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device grabs carried out as loaders or mounted on a tractor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Earth Drilling (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a rapid splicing platform suitable for taking soil in a foundation pit, which comprises a loading vehicle operation platform and a grab bucket crane operation platform, wherein the loading vehicle operation platform and the grab bucket crane operation platform are the same in structure and respectively comprise a combined beam plate, a wedge block and a base, the base is arranged on a cap beam at the top of the foundation pit, one end of the combined beam plate is arranged on the base, the other end of the combined beam plate is arranged on a ground access, and the wedge block is arranged on the ground access and is attached to the other end of the combined beam plate. Still include the guide structure that unloads soil, the guide structure that unloads soil corresponds the arrangement of load wagon work platform, the guide structure that unloads soil includes the stand structure and establishes the discharge hopper at the stand structure, is equipped with the end opening that is used for soil to pass through on the discharge hopper, and end opening size is less than load wagon carriage plane size, and end opening height is higher than load wagon carriage top surface height. Greatly improves the operation efficiency and can effectively prevent the soil from scattering outside the carriage when the grab bucket unloads and loads the soil.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a rapid splicing platform suitable for taking soil in a foundation pit and a complete construction process.
Background
The suspension bridge gravity type anchorage foundation is used as an important bearing structure of a suspension bridge and comprises an underground continuous wall, a cap beam, a lining, a bottom plate, a filler, a bulkhead and a top plate, wherein the construction of the anchorage foundation is that after the construction of the underground continuous wall and the cap beam is completed, a foundation pit is excavated by adopting a reverse construction method, a layer of soil is excavated to construct a layer of lining, and then the construction of the bottom plate, the filler, the bulkhead and the top plate is carried out.
At present, foundation pit soil taking is mainly carried out by four kinds of equipment, namely crawler crane soil taking, gantry crane soil taking, telescopic arm type excavator soil taking and grab bucket type crane soil taking.
Although the single bucket is large in soil taking amount by adopting the crawler crane, a temporary stockpiling area needs to be arranged on the sidewalk, so that a large amount of raised dust is easily generated, and the crawler crane is not environment-friendly; the temporarily stockpiled soil is then transferred to a loading vehicle through an excavator, the number of mechanical equipment for construction is large, a transfer link is added between soil taking and soil unloading, the work efficiency is low, and the equipment lease price of the crawler crane is high and uneconomical.
Although the single bucket square size is large when the gantry crane is adopted for soil taking, the winch is easy to damage and cannot move after equipment is installed, in order to avoid space vertical crossing operation and eliminate construction potential safety hazards, operation has to be suspended when the soil taking process is influenced by a lining construction working interface right below the winch, the equipment work efficiency is low, the lease price is high, and the equipment is not economical.
Adopt flexible arm-type excavator and grab bucket crane to borrow soil though take off and land fast, work efficiency is high, single fill borrow can directly load, and the clean environmental protection in construction site, equipment self can remove, but all has following limitation: (1) because the arm length of the equipment is short, in order to exert the soil taking capability of the equipment, the soil taking equipment needs to be close to the edge of the foundation pit as much as possible; (2) the soil taking time is greatly influenced by the plane position of the loading vehicle in place for loading soil.
The soil taking time of the four processes consists of the falling time of the grab bucket, the lifting time of the grab bucket, the rotation time of the suspension arm and the unloading time of the grab bucket. The falling time of the grab bucket, the lifting time of the grab bucket and the unloading time of the grab bucket are relatively fixed, and the rotation time of the suspension arm is greatly related to the plane position of the loading vehicle.
Through actual investigation and meter-to-meter measurements of similar projects, the total time from soil sampling to soil discharge of a single bucket onto a loading vehicle is as follows:
TABLE 1 work efficiency statistics table for four soil sampling devices (second layer lining position)
If the excavated volume of earth of the foundation pit of the layer is 10000m3Completing soil taking of the layer of soil, wherein the time of a crawler crane is 215 h; the time of the gantry crane is 195 hours; when the telescopic arm type excavator is used (114 h in the case of 135 degrees and 100h in the case of 90 degrees); when the grab bucket crane is used (128 h in the case of 135 DEG and 108h in the case of 90 deg). The following two conclusions can be drawn from this:
(1) the excavator with the telescopic arms has the highest work efficiency under four conventional processes, and then is a grab bucket crane, and the work efficiency of the excavator is very close to that of the grab bucket crane; (2) after the turning angle of the suspension arm is adjusted from 135 degrees to 90 degrees, the work efficiency can be improved by 18 percent.
In addition, the soil taking depth of the equipment adopting the telescopic arm type excavator is shallow, the maximum soil taking depth of the equipment in the market does not exceed 45m at present, and the unit price is higher than that of a grab bucket type crane.
The mode of combining the four traditional foundation pit soil borrowing is visible: if the soil taking equipment can be close to the edge of a foundation pit under any condition, and the work efficiency of the soil taking equipment can be exerted to the maximum extent at the plane position where a loading vehicle is stopped and loaded with soil, the soil taking by adopting the grab bucket crane is the optimal scheme from the viewpoints of cleanness and environmental protection of a construction site, construction efficiency, equipment maneuverability, flexibility, soil taking depth and economy. However, the above limitations still exist in the manner of taking earth by the grab crane.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a rapid splicing platform suitable for taking soil in a foundation pit and a complete construction process, so as to achieve the purpose of greatly improving the operation efficiency.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a platform of assembling fast suitable for borrow in foundation ditch, includes load wagon operation platform and grab bucket crane work platform, load wagon operation platform is the same with grab bucket crane work platform structure, all includes combination beam slab and wedge and is used for setting up the base on foundation ditch top cap beam, the one end of combination beam slab is established on the base, and the other end of combination beam slab is equipped with on the ground pavement, the wedge is established on the ground pavement and is set up with the other end laminating of combination beam slab.
The combined beam slab comprises a group of blocks, and the group of blocks are connected through splicing to form an integral combined beam slab structure.
And a wheel guard bank is arranged at the end, close to the foundation pit, of the combined beam plate.
And railings for protection are arranged on two sides of the combined beam plate and on the end part of the foundation pit.
The access is an annular access.
The combined beam slab comprises a main beam, a transverse distribution beam, a longitudinal distribution beam and a pattern steel plate which are sequentially arranged from bottom to top.
Still include the guide structure that unloads soil, the guide structure that unloads soil corresponds the arrangement of load wagon operation platform, the guide structure that unloads soil includes the stand structure and establishes the discharge hopper at the stand structure, is equipped with the end opening that is used for soil to pass through on the discharge hopper, and end opening size is less than load wagon carriage plane size, and end opening height is higher than load wagon carriage top surface height.
And one group of blocks of the combined beam plate are connected together through a transverse through drawknot beam.
The upright post structure comprises a front end upright post and a rear end upright post, wherein the front end upright post is arranged on the cap beam, and the rear end upright post is arranged on the sidewalk.
A complete construction process of the rapid splicing platform suitable for taking soil in the foundation pit comprises the following steps:
s1, welding and manufacturing each module component in a blocking manner;
s2, completing the hoisting of the loading vehicle operation platform, the grab bucket crane operation platform and the base of the soil unloading guide structure in sequence; after the foundation pit soil taking position planning is completed, base installation is completed through a tower crane arranged in the foundation pit; after the base is installed in place, measuring and checking the plane position and elevation of the base, and fixing the base through a connector on the cap beam after the requirements are met;
s3, sequentially completing the hoisting of the combined beam plate and the wedge block on the loading vehicle operation platform and the grab bucket crane operation platform in a blocking manner; after the combined beam slab is hoisted in place in a blocking manner, the combined beam slab is sequentially welded or fixed with the base through bolts; after the wedge-shaped block is hoisted in place, the wedge-shaped block is fixed through foundation bolts on the annular pavement;
s4, hoisting the soil unloading guide structure in place, wherein the front end upright post of the soil unloading guide structure is erected on the cap beam, and the rear end upright post is erected on the annular access road;
and S5, after soil taking is completed in the region, sequentially hoisting, disassembling and turning the assembly platform in blocks according to the reverse sequence of the steps.
Compared with the prior art, the invention has the following advantages:
1. the cross operation of excavation of the foundation pit and construction of the lining of the foundation pit is avoided, and the construction safety risk is effectively reduced;
when the foundation pit lining is constructed under the platform system, the platform system is lifted away from the area through hoisting equipment such as a tower crane, and soil is taken from other positions; the lining construction of other positions can be used for normally taking soil.
2. By the flexible arrangement of the platform system, the work efficiency of equipment is fully utilized, and the project progress is accelerated;
the platform system is manufactured in parallel in modules, so that the manufacturing time is saved, and the platform system can be quickly rotated and moved; the loading vehicle operation platform is arranged between the two grab bucket type crane operation platforms in parallel, so that the rotation angle of the suspension arm of the grab bucket type crane after soil taking is changed into 90 degrees, and the operation efficiency is greatly improved.
3. The scattering in the process of loading and transporting the earthwork is avoided, and the method is clean and environment-friendly;
through setting up the guide structure that unloads soil, prevent that the grab bucket from unloading the soil when loading and scattering outside the carriage, the polluted environment.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
fig. 1 is a schematic elevation view of the work platform of the loader of the present invention.
Fig. 2 is a schematic cross-sectional view of the working platform of the loading vehicle of the present invention.
Fig. 3 is a schematic elevation view of a grab crane operation platform of the present invention.
Fig. 4 is a schematic cross-sectional view of the operating platform of the grab crane of the present invention.
FIG. 5 is a schematic view of the structure of the composite beam slab of the present invention.
FIG. 6 is a schematic view of the soil unloading guide structure of the present invention.
In the figure:
1. the underground continuous wall comprises an underground continuous wall, 2. a lining, 3. a cap beam, 4. a base, 5. a combined beam plate, 501. a main beam, 502. a transverse distribution beam, 503. a longitudinal distribution beam, 504. a pattern steel plate, 6. a tie beam, 7. a wheel guard bank, 8. a wedge-shaped block, 9. an annular access way, 10. a railing, 11. a rear end upright post, 12. a front end upright post and 13. a discharge hopper.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.
As shown in fig. 1 to 6, the rapid splicing platform suitable for taking soil in a foundation pit comprises a loading vehicle operation platform, a grab bucket crane operation platform and a soil unloading guide structure; the loading vehicle operation platform and the grab bucket crane operation platform are the same in structure and comprise a combined beam plate 5, a wedge block 8 and a base 4 used for being arranged on a cap beam at the top of a foundation pit, one end of the combined beam plate is arranged on the base, the other end of the combined beam plate is arranged on a ground access way, and the wedge block is arranged on the ground access way and attached to the other end of the combined beam plate.
The cylindrical foundation pit comprises an annular underground continuous wall 1 and a lining 2 arranged on the inner side of the underground continuous wall, and the tops of the underground continuous wall and the lining are provided with cap beams 3; the base is fixedly arranged on the cap beam at the top.
The combined beam slab 5 comprises a group of blocks which are connected through splicing to form an integral combined beam slab structure, and the manufacturing and hoisting are simple and convenient.
The wheel guard 7 is arranged at the end, close to the foundation pit, of the combined beam plate 5, and the handrails 10 for protection are arranged on the two sides of the combined beam plate and the end part, close to the foundation pit, of the combined beam plate; the safety accident of related vehicle equipment which is driven away from the platform can be effectively prevented.
The combined beam plate 5 comprises a main beam 501, a transverse distribution beam 502, a longitudinal distribution beam 503 and a pattern steel plate 504 which are arranged from bottom to top in sequence; a group of blocks of the combined beam plate are connected together through a transverse through tie beam 6, and the blocks are assembled to form an integral platform. The pavement is an annular pavement 9, and the assembly platform is lifted, disassembled and circulated efficiently.
As the size of the grab bucket crane is larger than that of the body of the loading vehicle, the soil unloading guide structure is arranged for preventing soil from scattering outside the carriage and polluting the environment when the grab bucket unloads soil and loads the soil.
The soil unloading guide structure is arranged corresponding to a loading vehicle operation platform, the soil unloading guide structure comprises an upright post structure and a discharge hopper 13 arranged on the upright post structure, a bottom opening used for soil to pass through is arranged on the discharge hopper, the size of the bottom opening is smaller than the planar size of a loading vehicle compartment, and the height of the bottom opening is higher than the height of the top surface of the loading vehicle compartment.
The upright column structure comprises a front end upright column 12 and a rear end upright column 11, wherein the front end upright column is arranged on the cap beam, and the rear end upright column is arranged on the sidewalk.
The complete construction process of the rapid splicing platform suitable for taking soil in the foundation pit comprises the following steps:
s1, welding and manufacturing each module component in a blocking manner;
s2, hoisting the loading vehicle operation platform, the grab bucket crane operation platform and the base 4 of the soil unloading guide structure in sequence; after the foundation pit soil taking position planning is completed, base installation is completed through a tower crane arranged in the foundation pit; after the base is installed in place, measuring and checking the plane position and elevation of the base, and fixing the base through a connector on the cap beam 3 after the requirement is met;
s3, sequentially completing the hoisting of the combined beam plate and the wedge block on the loading vehicle operation platform and the grab bucket crane operation platform in a blocking manner; after the combined beam slab is hoisted in place in a blocking manner, the combined beam slab is sequentially welded or fixed with the base through bolts; after the wedge-shaped block is hoisted in place, the wedge-shaped block is fixed through foundation bolts on the annular pavement;
s4, hoisting the soil unloading guide structure in place, wherein the front end upright post of the soil unloading guide structure is erected on the cap beam, and the rear end upright post is erected on the annular access road;
and S5, after soil taking is completed in the region, hoisting, disassembling and circulating the assembly platform in blocks according to the reverse sequence of the steps.
Preferred specific examples are:
the rapid assembling platform comprises a loading vehicle operation platform, a grab bucket crane operation platform and a soil unloading guide structure, wherein the loading vehicle operation platform, the grab bucket crane operation platform and the soil unloading guide structure are convenient to move.
The loading vehicle operation platform and the grab bucket crane operation platform are formed by manufacturing, assembling and connecting a base, a combined beam plate and a wedge-shaped block in a blocking mode, and the position of the base and the size of the platform are set according to the actual plane size of the loading vehicle and the grab bucket crane. The base is used for eliminating the height difference between the cap beam and the annular access road and is manufactured by welding section steel in a layered mode according to the height difference on site; the combined beam plate is used as a direct bearing structure, in order to reduce the weight during hoisting, 2-3 steel structure beam plates are spliced in blocks, each single beam plate is formed by welding a main beam, a transverse distribution beam, a longitudinal distribution beam and a patterned steel plate from bottom to top, in order to enable each single beam plate to form a whole, a tie beam is transversely connected to each single beam plate in a penetrating manner, in order to prevent a safety accident from occurring when a loading vehicle and a grab bucket crane are backed to be in place and drive away from a platform, a wheel guard bank is arranged on the combined beam plate, and after the single beam plates are spliced in blocks, protective railings are arranged at the two sides and the front end; the wedge-shaped block is used for eliminating the height difference between the combined beam slab and the annular access road and can be manufactured by adopting a profile steel or precast concrete structure.
The grab bucket of the grab bucket crane is larger than the body of the loading truck, so that soil is prevented from scattering outside a carriage when the grab bucket unloads soil and loads the soil, the environment is polluted, the grab bucket crane is provided with a soil unloading guide structure, the structure consists of a steel structure frame body and an open type discharging hopper, the size of a bottom opening of the discharging hopper is slightly smaller than the plane size of the carriage of the loading truck, and the height of the bottom opening is slightly higher than the top surface of the carriage of the loading truck; when loading, the vehicle type is positioned under the discharge hopper, so that soil is prevented from scattering outside the carriage.
According to the invention, by arranging a set of system of the movable loading vehicle operation platform, the grab bucket crane operation platform and the soil unloading guide structure, the defects in the conventional process of the effective grab bucket crane are overcome, the optimal configuration of equipment resources is realized, the operation efficiency is greatly improved, and the project progress is accelerated.
This system comprises the steel construction that the modularization can be assembled, and monolithic hoisting member's dead weight is light, can pass through tower crane or current jack-up lifting device around the foundation ditch in the use and have enough to meet the need the removal fast conveniently, can organize the condition to arrange according to the site operation in a flexible way, and relatively fixed platform has reduced occupation, the saving of place functional area and has used the steel volume.
The invention is described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the above embodiments, and it is within the scope of the invention to use the concept and technical solution of the invention in other fields without substantial or direct modification.
Claims (9)
1. The utility model provides a platform of assembling fast suitable for borrow in foundation ditch, includes load wagon operation platform and grab bucket crane work platform, its characterized in that: the loading vehicle operation platform and the grab bucket crane operation platform are the same in structure and respectively comprise a combined beam plate, a wedge block and a base, wherein the base is used for being arranged on a cap beam at the top of a foundation pit;
still include the guide structure that unloads soil, the guide structure that unloads soil corresponds the arrangement of load wagon work platform, the guide structure that unloads soil includes the stand structure and establishes the discharge hopper at the stand structure, is equipped with the end opening that is used for soil to pass through the direction on the discharge hopper, and end opening size is less than load wagon carriage plane size, and end opening height is higher than load wagon carriage top surface height.
2. The rapid splicing platform suitable for taking soil in a foundation pit as claimed in claim 1, wherein: the combined beam slab comprises a group of blocks, and the group of blocks are connected through splicing to form an integral combined beam slab structure.
3. The rapid splicing platform suitable for taking soil in a foundation pit as claimed in claim 1, wherein: and a wheel guard bank is arranged at the end, close to the foundation pit, of the combined beam plate.
4. The rapid assembling platform suitable for taking soil in foundation pit as claimed in claim 1, wherein: and railings for protection are arranged on two sides of the combined beam plate and on the end part of the foundation pit.
5. The rapid splicing platform suitable for taking soil in a foundation pit as claimed in claim 1, wherein: the access is an annular access.
6. The rapid splicing platform suitable for taking soil in a foundation pit as claimed in claim 1, wherein: the combined beam slab comprises a main beam, a transverse distribution beam, a longitudinal distribution beam and a pattern steel plate which are sequentially arranged from bottom to top.
7. The rapid splicing platform suitable for taking soil in a foundation pit as claimed in claim 2, wherein: and one group of blocks of the combined beam plate are connected together through a transverse through drawknot beam.
8. The rapid splicing platform suitable for taking soil in a foundation pit as claimed in claim 1, wherein: the upright post structure comprises a front end upright post and a rear end upright post, wherein the front end upright post is arranged on the cap beam, and the rear end upright post is arranged on the sidewalk.
9. A complete set of construction process of a rapid assembly platform suitable for taking earth in a foundation pit according to any one of claims 1 to 8, which is characterized in that: the method comprises the following steps:
s1, welding and manufacturing each module component in a blocking manner;
s2, sequentially completing the hoisting of the loading vehicle operation platform, the grab bucket crane operation platform and the base of the soil unloading guide structure; after the foundation pit soil taking position planning is completed, base installation is completed through a tower crane arranged in the foundation pit; after the base is installed in place, measuring and checking the plane position and elevation of the base, and fixing the base through a connector on the cap beam after the requirement is met;
s3, sequentially completing the hoisting of the combined beam plate and the wedge block on the loading vehicle operation platform and the grab bucket crane operation platform in a blocking manner; after the combined beam slab is hoisted in place in a blocking manner, the combined beam slab is sequentially welded or fixed with the base through bolts; after the wedge-shaped block is hoisted in place, the wedge-shaped block is fixed through foundation bolts on the annular pavement;
s4, hoisting the soil unloading guide structure in place, wherein the front end upright post of the soil unloading guide structure is erected on the cap beam, and the rear end upright post is erected on the annular access road;
and S5, after soil taking is completed in the region, hoisting, disassembling and circulating the assembly platform in blocks according to the reverse sequence of the steps.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011443652.4A CN112502212B (en) | 2020-12-08 | 2020-12-08 | Rapid assembly platform suitable for taking soil in foundation pit and complete construction process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011443652.4A CN112502212B (en) | 2020-12-08 | 2020-12-08 | Rapid assembly platform suitable for taking soil in foundation pit and complete construction process |
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| CN112502212A CN112502212A (en) | 2021-03-16 |
| CN112502212B true CN112502212B (en) | 2022-06-24 |
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| CN110847188A (en) * | 2019-12-20 | 2020-02-28 | 中建一局集团建设发展有限公司 | Ultra-deep foundation pit earth excavation platform structure and construction method thereof |
| CN110984164A (en) * | 2019-12-17 | 2020-04-10 | 中交第一航务工程局有限公司 | Upper assembled temporary construction platform of foundation pit in narrow space region and construction method thereof |
| CN112030996A (en) * | 2020-09-09 | 2020-12-04 | 中建四局建设发展有限公司 | A construction platform for foundation ditch crown beam upper portion |
-
2020
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747737A (en) * | 2012-06-21 | 2012-10-24 | 华丰建设股份有限公司 | Soil discharge platform of foundation pit structure and construction method thereof |
| CN203145470U (en) * | 2013-04-03 | 2013-08-21 | 上海宏信设备工程有限公司 | Combined platform for construction |
| CN104372799A (en) * | 2014-11-26 | 2015-02-25 | 江苏鸿基科技有限公司 | Rigid unearthing platform foundation pit inner support structure and construction method |
| CN207143966U (en) * | 2017-08-09 | 2018-03-27 | 中国建筑第八工程局有限公司 | The discharging platform on foundation ditch side |
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| CN110984164A (en) * | 2019-12-17 | 2020-04-10 | 中交第一航务工程局有限公司 | Upper assembled temporary construction platform of foundation pit in narrow space region and construction method thereof |
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| CN112030996A (en) * | 2020-09-09 | 2020-12-04 | 中建四局建设发展有限公司 | A construction platform for foundation ditch crown beam upper portion |
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| CN112502212A (en) | 2021-03-16 |
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