CN115305936A - Water-resisting construction process for steel box - Google Patents
Water-resisting construction process for steel box Download PDFInfo
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- CN115305936A CN115305936A CN202211025061.4A CN202211025061A CN115305936A CN 115305936 A CN115305936 A CN 115305936A CN 202211025061 A CN202211025061 A CN 202211025061A CN 115305936 A CN115305936 A CN 115305936A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 165
- 239000010959 steel Substances 0.000 title claims abstract description 165
- 238000010276 construction Methods 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000008569 process Effects 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000004567 concrete Substances 0.000 claims abstract description 52
- 239000010410 layer Substances 0.000 claims abstract description 28
- 239000011241 protective layer Substances 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 8
- 238000004078 waterproofing Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 11
- 230000001133 acceleration Effects 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 8
- 238000003466 welding Methods 0.000 abstract description 4
- 238000009435 building construction Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 6
- 239000002689 soil Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000003673 groundwater Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
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- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention provides a steel box water-resisting construction process, and relates to the technical field of building construction. The steel box waterproof construction process comprises the following steps: s1, manufacturing a steel box, namely, mutually welding a steel plate serving as a side wall and a bottom plate to manufacture a box body, wherein a reinforcing channel steel is arranged outside the box body; s2, placing the steel box in place, hoisting the steel box to the position near the excavated water collecting pit, hoisting the counterweight into the steel box, hoisting the steel box with the built-in counterweight into the water collecting pit, and stably adjusting; s3, backfilling, namely backfilling concrete in the water collecting pit outside the steel box and maintaining; s4, constructing a cushion layer, namely constructing the cushion layer concrete on the top of the concrete after the backfilled concrete is solidified, and hanging out the balance weight; s5, waterproofing and structural construction, namely constructing a waterproof layer and a waterproof protective layer in the steel box and on the cushion layer, and finishing the structural construction of the water collecting pit outside the waterproof protective layer; the steel box waterproof construction process is applied to projects with large local small-range water inflow, and has the advantages of few civil engineering processes, short construction period and low drainage cost.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a water-resisting construction process for a steel box.
Background
The construction is disturbed by underground water, which is a very troublesome matter, and for projects with large area and high investment, a construction unit may have to solve the problem by adopting modes of precipitation, underground diaphragm walls or waterproof curtains and the like.
However, for a project with a large water inflow in a local small range, the method has the disadvantages of more civil engineering processes, longer construction period and high drainage cost.
In the construction process of the Beijing oral hospital building project, the elevation of the large-surface base of the east region foundation pit is-17.26 m, a plurality of places are provided with water collecting pits with the depths of 3.5m and 4.2m, the elevation of the ground water level during geological exploration is about-24.5 m, but the ground water level of the foundation pit engineering field generally rises due to the fact that nearby river water is refilled during pile foundation construction and the like, and the elevation of the ground water level is about-20.5 m and is about 4.0m higher than the original water level according to third party monitoring data of 27 days 5 and 27 months in 2021. Most of the water collecting pits which are not influenced by underground water originally are disturbed by the underground water, and the substrate is immersed into the underground water level for about 1 to 1.5m. According to geological survey reports, the substrate soil is a pebble soil layer mixed with a large number of fine particles, no impervious bed exists in the lower survey depth range, the foundation contains diving, the water permeability coefficient is large, and the influence of underground water needs to be eliminated in structural construction.
The original foundation pit design unit and the structural design unit consider that the foundation pit is not deep, and the foundation pit can be greatly claimed to discharge water. And 2 foundation pits are also taken on site to carry out open drainage tests, which are generally unsuccessful, namely, fine sand in the foundation soil is entrained and pumped away more, the side slope collapse around the sump is serious, and the large treatment capacity and the high cost are realized by slope repairing again and range expansion. Fourthly, water pumping is slow, and once power failure or equipment failure occurs, the water collecting pit is filled with water for almost several minutes, so that the work is abandoned. Fifthly, even though no accident occurs, the construction period is longer and the drainage cost is not low because of more civil engineering processes!
Since the drainage measures are not performed, water-resisting measures cannot be taken? The waterproof curtain or the underground continuous wall is high in construction cost, and is not necessarily adopted by general owners. The engineering limit design is naturally not adopted. Moreover, the site pile foundation is already constructed, the bottom of some local foundation pits is already finished with groove cleaning work, then the foundation is easily disturbed by entering large-scale equipment for entering operation, and a construction unit, a design unit and a site supervision unit are not allowed, so that the actual situation of the site forces people of our headquarters to think, and other practical, economic and feasible water-proof measures are available. The solution of the invention is developed by the skilled person in this context.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a water-resisting construction process for a steel box, which solves the problem that the engineering construction period with large local small-range water inflow is long, and the drainage cost is high.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a steel box water-resisting construction process comprises the following steps:
s1 Steel case manufacturing
The steel plates are used as side walls and are welded with the bottom plate to form a box body, and reinforcing channel steel is arranged outside the box body;
s2 Steel case is in place
Hoisting the steel box to the position near the excavated water collecting pit, hoisting the counterweight into the steel box, hoisting the steel box with the built-in counterweight into the water collecting pit, and stably adjusting;
s3 backfilling
Backfilling concrete in the water collecting pit outside the steel box and maintaining;
s4 cushion layer construction
After the backfilled concrete is solidified, performing cushion concrete construction on the top of the concrete, and lifting the balance weight out;
s5 waterproofing and structural construction
Constructing a waterproof layer and a waterproof protective layer in the steel box and on the cushion layer, and finishing the construction of a sump structure outside the waterproof protective layer;
the stress borne by the side wall of the steel box meets the condition that the stress is sigma = M/W =0.9 rho gHL 2 /h 2 ≤[σ]；
The deflection of the side wall of the steel box meets f =5qL 4 /384EI＝0.15625ρgHL 4 /Eh 3 ≤[f]；
Wherein:
rho is the density of concrete poured around the steel box;
g is the gravity acceleration of the longitude and latitude of the steel box;
h is the water head height of the steel box;
l is the calculation span;
h is the thickness of the side wall steel plate;
e is the elastic modulus of the side wall steel plate;
[ sigma ] is the allowable stress of the material of the side wall of the steel box;
[f] the allowable deflection of the side wall of the steel box.
Preferably, the weight in S2The weight of the material satisfies that G is more than or equal to rho gV-G 0 ；
Wherein:
rho is the density of concrete poured around the steel box;
g is the gravity acceleration of the longitude and latitude of the steel box;
v is the volume of concrete extruded by the steel box in the peripheral pouring concrete;
G 0 is the dead weight of the steel box.
Preferably, in S1, the outer wall of the box body is provided with a plurality of hanging ribs for hanging the box body at the bottom of the pockets, and the top ends of the hanging ribs are provided with hanging rings.
Preferably, the reinforcing channel steel in the S1 sequentially comprises from bottom to top: the steel-channel steel comprises a steel-channel base, waist steel-channel steel and an opening steel-channel.
Preferably, in S2, the counterweight includes coiled steel bars and/or a prefabricated concrete counterweight.
Preferably, the sump structure in S5 is a reinforced concrete structure.
(III) advantageous effects
The invention provides a water-resisting construction process for a steel box. Compared with the prior art, the method has the following beneficial effects:
in the invention, the steel box water-resisting construction process comprises the following steps: s1, manufacturing a steel box, namely, mutually welding a steel plate serving as a side wall and a bottom plate to manufacture a box body, wherein a reinforcing channel steel is arranged outside the box body; s2, placing the steel box in place, hoisting the steel box to the position near the excavated water collecting pit, hoisting a counterweight into the steel box, hoisting the steel box with the built-in counterweight into the water collecting pit, stably adjusting, separating and hoisting the steel box and the counterweight, assembling and sinking near the water collecting pit, and preventing accidents caused by too large area of a horizontal transportation path when hoisting the steel box and the counterweight together on a large foundation pit; s3, backfilling, namely backfilling concrete in the water collecting pit outside the steel box and maintaining; s4, constructing a cushion layer, namely constructing the cushion layer concrete on the top of the concrete after the backfilled concrete is solidified, and hanging out the balance weight; s5, waterproofing and structural construction, namely constructing a waterproof layer and a waterproof protective layer in the steel box and on the cushion layer, and finishing the structural construction of the water collecting pit outside the waterproof protective layer; the steel box waterproof construction process is applied to local projects with large water inflow in a small range, and has the advantages of less civil engineering procedures, short construction period and low drainage cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a process flow diagram of water-resisting construction of a steel box in the embodiment of the invention;
FIG. 2 is a schematic structural diagram of a steel box in an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the application provides a steel box water-resisting construction process, and solves the problem that the construction period of a local small-range large water inflow project is long, and the drainage cost is high.
In order to solve the technical problems, the general idea of the embodiment of the application is as follows:
in the embodiment of the invention, the steel box water-resisting construction process comprises the following steps: s1, manufacturing a steel box, namely, welding a steel plate serving as a side wall and a bottom plate to obtain a box body, wherein reinforcing channel steel is arranged outside the box body; s2, placing the steel box in place, hoisting the steel box to the position near the excavated water collecting pit, hoisting a counterweight into the steel box, hoisting the steel box with the built-in counterweight into the water collecting pit, stably adjusting, separating and hoisting the steel box and the counterweight, assembling and sinking near the water collecting pit, and preventing accidents caused by too large area of a horizontal transportation path when hoisting the steel box and the counterweight together on a large foundation pit; s3, backfilling, namely backfilling concrete in the water collecting pit outside the steel box and maintaining; s4, constructing a cushion layer, namely constructing the cushion layer concrete on the top of the concrete after the backfilled concrete is solidified, and hanging out the balance weight; s5, waterproofing and structural construction, namely constructing a waterproof layer and a waterproof protective layer in the steel box and on the cushion layer, and finishing the structural construction of the water collecting pit outside the waterproof protective layer; the steel box waterproof construction process is applied to projects with large local small-range water inflow, and has the advantages of few civil engineering processes, short construction period and low drainage cost.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
Example (b):
as shown in fig. 1 and 2, the invention provides a steel box water-resisting construction process, which comprises the following steps:
s1 Steel case manufacturing
The steel plates are used as side walls and are welded with the bottom plate to form a box body, and reinforcing channel steel is arranged outside the box body;
s2 Steel Box in position
The steel box is lifted to the position near the dug water collecting pit, then the counterweight is lifted into the steel box, the steel box with the built-in counterweight is lifted into the water collecting pit and is adjusted stably, the steel box and the counterweight are lifted separately, and the steel box and the counterweight are assembled and sunk near the water collecting pit, so that accidents caused by too large area of a horizontal transportation path when the steel box and the counterweight are lifted together on a large foundation pit are prevented;
s3 backfilling
Backfilling concrete in the water collecting pit outside the steel box and maintaining;
s4 cushion layer construction
After the backfilled concrete is solidified, performing cushion concrete construction on the top of the concrete, and lifting the balance weight out;
s5 waterproofing and structural construction
Constructing a waterproof layer and a waterproof protective layer in the steel box and on the cushion layer, and finishing the construction of a sump structure outside the waterproof protective layer;
the steel box waterproof construction process is applied to projects with large local small-range water inflow, and has the advantages of few civil engineering processes, short construction period and low drainage cost.
The steel box is put into the aquatic, and the base is in a balanced state basically under the effect of counter weight pressure and buoyancy, and the counter weight is big more the box sinks more deeply, and buoyancy is also big more, and channel-section steel base and bottom plate rigidity are all very big, and compression deformation is very little itself, can not carry out the accounting.
The lateral pressure of the steel box is increased along with the sinking depth, and the pressure is also increased. The maximum pressure on the side plate when the sinking depth is maximum is calculated. However, the maximum lateral pressure of the box body is not generated in the process of sinking the box body, but is generated when concrete is poured around the box body.
The unit calculation of the width b in the side wall of the steel box,
the line load standard value q = ρ gHb;
design value of line load q' =1.2q =1.2 ρ gHb;
maximum bending moment M = q' L 2 /8；
Cross sectional moment of resistance W = bh 2 /6；
Stress applied to the cross section of the side wall is sigma = M/W =0.9 rho gHL 2 /h 2 ≤[σ]；
Moment of inertia in cross section I = bh 3 /12；
Sidewall deflection f =5qL 4 /384EI＝0.15625ρgHL 4 /Eh 3 ≤[f]；
Wherein:
rho is the density of concrete poured around the steel box;
g is the gravity acceleration of the longitude and latitude of the steel box;
h is the water head height of the steel box;
l is the calculation span;
h is the thickness of the side wall steel plate;
e is the elastic modulus of the side wall steel plate;
[ sigma ] is the allowable stress of the material of the side wall of the steel box;
[f] the allowable deflection of the side wall of the steel box.
The key of the steel box water-resisting construction technology is balance weight and replacement balance; the balance weight relates to whether the steel box can resist buoyancy to sink to a position below a structural design elevation at the initial stage of sinking and water isolation, when replacement balance is realized by removing the balance weight to give way for structural construction, internal balance weight balance buoyancy is converted into external backfill materials to combine with the steel box to balance buoyancy, at the moment, the selection and construction of the backfill materials are critical, for example, water-permeable materials such as sand stones are adopted, the sand stones and the steel box are weaker in bonding force, the steel box is just like being in water and easy to float, for example, impermeable materials such as clay are adopted, although part of water can be separated, the backfill materials are easy to soften when meeting water and are not suitable for being used as a foundation of the external structure of the steel box, therefore, the backfill materials can be selected from concrete, and the construction is carried out by adopting an underwater concrete pouring technology to ensure the quality of backfill at the lower part and the periphery of the box. After the concrete is hardened, the concrete is combined with the box body, and meanwhile, the concrete cement paste can be combined with the surrounding soil body through penetration, so that the anti-floating capacity of the box body is improved.
F = rho gV of buoyancy force borne by the steel box after concrete backfilling is finished;
the weight of the counterweight in S2 is required to satisfy G ≥ F-G 0 I.e. G.gtoreq.rho gV-G 0 ；
Wherein:
rho is the density of concrete poured around the steel box;
g is the gravity acceleration of the longitude and latitude of the steel box;
v is the volume of concrete extruded by the steel box in the peripheral pouring concrete;
G 0 is the dead weight of the steel box.
The steel box mainly plays a role of resisting water and simultaneously serving as an outer mold for construction of the sump structure, so that the inner size of the steel box is not smaller than the outer size of the sump structure, the thickness of the waterproof layer and the thickness of the protective layer of the coiled material are considered, and each side is generally larger than the structure size by about 50 mm. The height is as high as about 50mm below the concrete surface of the large cushion layer, the upper part is convenient for arc treatment and waterproof construction of the concrete external corner, the minimum height is not less than the instantaneous rising height of the water level in the water collecting pit after the steel box is in place, and the height is increased by 200mm additionally for the sake of safety, so that the shock of water waves is resisted.
S1, the outer wall of the box body is provided with a plurality of hanging ribs for hoisting the box body at the bottom of the pocket, and the top ends of the hanging ribs are provided with hanging rings for facilitating hoisting of the steel box.
In S1, the reinforced channel steel sequentially comprises from bottom to top: the steel-channel steel comprises a steel-channel base, waist steel-channel steel and an opening steel-channel.
And in the S2, the counter weight comprises coiled steel bars and/or prefabricated concrete counter weights, so that the whole part is conveniently lifted in batches, and the overturning risk of the crane is reduced.
And S5, adopting a reinforced concrete structure for the sump structure.
In summary, compared with the prior art, the invention has the following beneficial effects:
in the embodiment of the invention, the steel box water-resisting construction process comprises the following steps: s1, manufacturing a steel box, namely, mutually welding a steel plate serving as a side wall and a bottom plate to manufacture a box body, wherein a reinforcing channel steel is arranged outside the box body; s2, placing the steel box in place, hoisting the steel box to the position near the excavated water collecting pit, hoisting a counterweight into the steel box, hoisting the steel box with the built-in counterweight into the water collecting pit, stably adjusting, separating and hoisting the steel box and the counterweight, assembling and sinking near the water collecting pit, and preventing accidents caused by too large area of a horizontal transportation path when hoisting the steel box and the counterweight together on a large foundation pit; s3, backfilling, namely backfilling concrete in the water collecting pit outside the steel box and maintaining; s4, constructing a cushion layer, namely constructing the cushion layer concrete on the top of the concrete after the backfilled concrete is solidified, and hanging out the balance weight; s5, waterproofing and structural construction, namely constructing a waterproof layer and a waterproof protective layer in the steel box and on the cushion layer, and finishing the structural construction of the water collecting pit outside the waterproof protective layer; the steel box waterproof construction process is applied to projects with large local small-range water inflow, and has the advantages of few civil engineering processes, short construction period and low drainage cost.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. The steel box water-resisting construction process is characterized by comprising the following steps:
s1 Steel case manufacturing
The steel plates are used as side walls and are welded with the bottom plate to form a box body, and reinforcing channel steel is arranged outside the box body;
s2 Steel Box in position
Hoisting the steel box to the position near the excavated water collecting pit, hoisting the counterweight into the steel box, hoisting the steel box with the built-in counterweight into the water collecting pit, and stably adjusting;
s3 backfilling
Backfilling concrete in the water collecting pit outside the steel box and maintaining;
s4 cushion layer construction
After the backfilled concrete is solidified, performing cushion concrete construction on the top of the concrete, and lifting the balance weight out;
s5 waterproofing and structural construction
Constructing a waterproof layer and a waterproof protective layer in the steel box and on the cushion layer, and finishing the construction of a sump structure outside the waterproof protective layer;
the stress borne by the side wall of the steel box meets the requirement that the stress borne by the side wall of the steel box is sigma = M/W =0.9 rho gHL 2 /h 2 ≤[σ]；
The deflection of the side wall of the steel box meets f =5qL 4 /384EI＝0.15625ρgHL 4 /Eh 3 ≤[f]；
Wherein:
rho is the density of concrete poured around the steel box;
g is the gravity acceleration of the longitude and latitude of the steel box;
h is the water head height of the steel box;
l is the calculation span;
h is the thickness of the side wall steel plate;
e is the elastic modulus of the side wall steel plate;
[ sigma ] is the allowable stress of the material of the side wall of the steel box;
[f] the allowable deflection of the side wall of the steel box.
2. The steel tank water-resisting construction process of claim 1, wherein the weight of the counterweight in S2 satisfies G ≥ ρ gV-G 0 ；
Wherein:
rho is the density of concrete poured around the steel box;
g is the gravity acceleration of the longitude and latitude of the steel box;
v is the volume of concrete extruded by the steel box in the peripheral pouring concrete;
G 0 is the dead weight of the steel box.
3. The steel box water-resisting construction process according to claim 1, wherein a plurality of hanging ribs for hanging the box body at the bottom of the pocket are arranged on the outer wall of the box body in the S1, and hanging rings are arranged at the top ends of the hanging ribs.
4. The steel box water-resisting construction process of claim 1, wherein the reinforced channel steel in the S1 sequentially comprises from bottom to top: the steel channel comprises a steel channel base, waist steel channels and opening steel channels.
5. The steel tank water-resisting construction process of claim 1, wherein in S2, the counterweight comprises coiled steel bars and/or a prefabricated concrete counterweight.
6. The steel tank water-resisting construction process of claim 1, wherein the sump structure in the step S5 is a reinforced concrete structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211025061.4A CN115305936A (en) | 2022-08-25 | 2022-08-25 | Water-resisting construction process for steel box |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211025061.4A CN115305936A (en) | 2022-08-25 | 2022-08-25 | Water-resisting construction process for steel box |
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| CN115305936A true CN115305936A (en) | 2022-11-08 |
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| CN202211025061.4A Pending CN115305936A (en) | 2022-08-25 | 2022-08-25 | Water-resisting construction process for steel box |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11200387A (en) * | 1998-01-12 | 1999-07-27 | Hokukon Co Ltd | Construction method of subsurface construction |
| CN1718942A (en) * | 2005-08-05 | 2006-01-11 | 卢如年 | Ground caisson construction technology and ground caisson |
| CN103205978A (en) * | 2013-04-18 | 2013-07-17 | 成军 | High-permeability zone under-water-level elevator foundation pit open caisson moulding bed construction method |
| CN104131570A (en) * | 2014-06-26 | 2014-11-05 | 中冶天工上海十三冶建设有限公司 | Steel box enclosure device for foundation pit construction and construction method thereof |
| CN205242419U (en) * | 2015-12-01 | 2016-05-18 | 北京首钢建设集团有限公司 | Steel sheet caisson of usefulness that secretly blocks water |
-
2022
- 2022-08-25 CN CN202211025061.4A patent/CN115305936A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11200387A (en) * | 1998-01-12 | 1999-07-27 | Hokukon Co Ltd | Construction method of subsurface construction |
| CN1718942A (en) * | 2005-08-05 | 2006-01-11 | 卢如年 | Ground caisson construction technology and ground caisson |
| CN103205978A (en) * | 2013-04-18 | 2013-07-17 | 成军 | High-permeability zone under-water-level elevator foundation pit open caisson moulding bed construction method |
| CN104131570A (en) * | 2014-06-26 | 2014-11-05 | 中冶天工上海十三冶建设有限公司 | Steel box enclosure device for foundation pit construction and construction method thereof |
| CN205242419U (en) * | 2015-12-01 | 2016-05-18 | 北京首钢建设集团有限公司 | Steel sheet caisson of usefulness that secretly blocks water |
Non-Patent Citations (1)
| Title |
|---|
| 田红星: "跨湖引桥箱梁支架法施工模板支撑体系设计与施工", 铁道建筑技术, no. 10, pages 5 * |
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