CN107447770A - A kind of big open caisson of superelevation and construction method - Google Patents
A kind of big open caisson of superelevation and construction method Download PDFInfo
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- CN107447770A CN107447770A CN201710739897.3A CN201710739897A CN107447770A CN 107447770 A CN107447770 A CN 107447770A CN 201710739897 A CN201710739897 A CN 201710739897A CN 107447770 A CN107447770 A CN 107447770A
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- 238000010276 construction Methods 0.000 title claims abstract description 70
- 238000005056 compaction Methods 0.000 claims abstract description 10
- 238000005520 cutting process Methods 0.000 claims description 38
- 239000004576 sand Substances 0.000 claims description 23
- 238000013461 design Methods 0.000 claims description 20
- 239000002689 soil Substances 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 238000009412 basement excavation Methods 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000009415 formwork Methods 0.000 claims description 3
- 239000003673 groundwater Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 238000007569 slipcasting Methods 0.000 claims description 3
- 239000002349 well water Substances 0.000 claims description 2
- 235000020681 well water Nutrition 0.000 claims description 2
- 230000015271 coagulation Effects 0.000 claims 1
- 238000005345 coagulation Methods 0.000 claims 1
- 230000006641 stabilisation Effects 0.000 claims 1
- 238000011105 stabilization Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 230000001737 promoting effect Effects 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 4
- 101100008049 Caenorhabditis elegans cut-5 gene Proteins 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000004681 ovum Anatomy 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D23/00—Caissons; Construction or placing of caissons
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D23/00—Caissons; Construction or placing of caissons
- E02D23/08—Lowering or sinking caissons
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D23/00—Caissons; Construction or placing of caissons
- E02D23/16—Jointing caissons to the foundation soil, specially to uneven foundation soil
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses the big open caisson of superelevation and construction method, belong to municipal drainage technical field, form cost is higher and long in time limit for being gone along with sb. to guard him in existing foundation pit construction, the problem of certain foundation pit collapse risk be present.The big open caisson of the superelevation and construction method include:Water-stop curtain, compaction grouting back cover and bed course are set first as preparation measures, secondly first segment open caisson is poured respectively in two steps, second section open caisson, until form complete caisson structure, then open caisson operation is carried out, bottom concrete is finally carried out to pour, pass through the construction method of " making twice, an open caisson ", save horizontal struts system, the risk of foundation pit collapse is avoided, open caisson is made respectively by two steps, avoids the risk of the big open caisson manufacture process of superelevation of producing once, construction period and construction cost are saved, there is preferably promotional value.
Description
Technical field
The invention belongs to municipal drainage technical field, more particularly to a kind of big open caisson of superelevation and construction method.
Background technology
Currently, as social economy develops rapidly, the requirement of urban construction is improved constantly, and rain sewerage is built more heavy
Will.Traditional foundation pit construction mainly excavates the construction method with reference to several horizontal struts system using large area, and the construction method is enclosed
Shield form is mostly diaphram wall, bored concrete pile, SMW engineering method stakes etc..Foregoing form cost of going along with sb. to guard him is higher and long in time limit, exists certain
Foundation pit collapse risk.Open caisson has good density, short time limit, to neighbour as a kind of safe reliable rain sewage collection equipment
The advantages such as the influence of nearly building is smaller, stability is good.However, when caisson structure is higher belong to superelevation big open caisson when, once
Property make molding construction inconvenience and dangerous larger.
Therefore it provides a kind of big open caisson of superelevation that can effectively make up above-mentioned various drawbacks and construction method are art technologies
The technical barrier of personnel's urgent need to resolve.
The content of the invention
It is an object of the invention to provide one kind to be applied to the big open caisson of superelevation and construction method, is applied with solving existing foundation ditch
Go along with sb. to guard him that form cost is higher and long in time limit in work, the problem of certain foundation pit collapse risk be present.
To achieve these goals, the technical scheme is that:
A kind of big open caisson of superelevation and construction method, comprise the following steps:
Step 1: construction water-stop curtain:Open caisson surrounding is using double a diameter of 800mm high-pressure rotary jet grouting pile as sealing curtain
Curtain, overlap height >=250mm;
Step 2: construction compaction grouting back cover, its slip casting thickness is 3m under bottom plate;
Step 3: construction cushion coat, the bed course includes top concrete cushion and bottom sand bedding course;
Step 4: the step-by-step construction caisson structure above the concrete cushion of the step 3:The first step, carry out first segment
Reinforcing bar colligation, formwork erection, concreting and the maintenance of open caisson and cutting shoe;Second step, treat that the first segment open caisson reaches
During design strength, based on the first segment open caisson, the second section open caisson is poured above it and is conserved, until being formed complete
Caisson structure;
Step 5: caisson structure sinking operation, and carry out excavation and construction in well;
Step 6: dry back cover construction:When the caisson structure is sunk down into away from design bottom absolute altitude 10cm, stop cutting the earth in well
And draining so that when the caisson structure is by deadweight sinking or close to design bottom absolute altitude, then it is stable by the sinking of 2 to 3 days,
Or through observe in 8 days add up deflection be not more than 10mm when, you can progress bottom sealing construction.
Further, the step 3 includes:Have wall in the cutting shoe uses 1.3m thickness sand bedding courses, width 2.9m;
Using the full hall backfill of 1m thickness sand bedding course under cutting shoe beam;Sand during sand bedding course backfill is selected, vibrated with plate vibrator layering so that every
Thickness degree is less than 30cm, and sprinkles water, control dry density>1.56t/m3, ground cleaning leveling, makes top surface be maintained at same level
On, its absolute altitude is controlled within 10mm deviations with spirit level, and placing sand is tamped in its space, and sand bedding course is detected with cuttage
Compactness.
Further, it is 0.4 that the step 5, which includes first gradually digging since open caisson centre to surrounding, every layer of shoveling thickness,
~0.5m, along cutting shoe around retain 0.5~1.5m earth embankment, then again along mono- section of the every 2~3m of caisson wall to cutting shoe direction by
Layer comprehensively, symmetrical, equably skiving soil layer, cut 5~10cm every time, when soil layer cannot stand the extruding of cutting shoe and rupture, open caisson
Just soil compaction is sunk in the presence of deadweight.
Further, the step 5 also includes conserving to design strength after the described second section open caisson, is dug using grab bucket
Pick machine excavates the earthwork of center section in well, and the earthwork in well is hoisted into ground entrucking outward transport, the earthwork master that periphery is leaned in well
To be excavated by hand excavation and skewer shovel.
Further, the step 6 includes:Finishing first is carried out to shaft bottom and forms it into form of pot bottom, then from cutting shoe in
The heart digs out the gutter of radiation, and interior guanovulite turns into seugh, and 2~3 sumps, sump well are set in middle part
Between be interconnected with french drain, insert in wellThe steel pipe or pipe of concrete of surrounding eye, surrounding are filled out with ovum
Stone, the current in shaft bottom is collected in well, then discharged with immersible pump, ensure that the level of ground water in open caisson is less than basal surface with this
0.5m or so;Back cover is by metalling thick 160mm, plain concrete layer thick 200mm, and the concrete floor three that 600mm is thick
Layer composition.
Further, the back cover material under the cutting shoe tamps, and concrete cushion answers vibration compacting, to ensure open caisson most
After stablize, after blinding concrete reaches 50% design strength, you can carry out base plate steel bar binding, baseplate reinforcing bar should be by design requirement
Stretch into the groove of cutting shoe.
Further, the depth of the sump is 1~2m.
Present invention also offers the big open caisson of superelevation made using foregoing construction method, the big open caisson of superelevation includes top
Lid, caisson structure and back cover, the caisson structure includes the first segment open caisson poured at twice and the second section open caisson, described heavy
Well construction lower end is provided with cutting shoe, and partition wall is provided with open caisson pit shaft, and borehole wall inner side is provided with groove above the cutting shoe.
The present invention compared with prior art, has the following advantages that and beneficial effect:
The big open caisson of superelevation and construction method of the present invention, sets water-stop curtain, compaction grouting back cover and bed course to make first
For preparation measures, first segment open caisson, the second section open caisson, until forming complete caisson structure, so are secondly poured respectively in two steps
Open caisson operation is carried out afterwards, bottom concrete is finally carried out and pours, that is, passes through the construction method of " making twice, an open caisson ", section
Horizontal struts system has been saved, has avoided the risk of foundation pit collapse, open caisson has been made respectively by two steps, avoids superelevation of producing once
The risk of big open caisson manufacture process, saves construction period and construction cost, has preferably promotional value.
Brief description of the drawings
The big open caisson of superelevation and construction method of the present invention is provided by following embodiment and accompanying drawing.
Fig. 1 is the schematic diagram before the big well sinking of superelevation in one embodiment of the invention;
Fig. 2 is the schematic diagram after the big well sinking of superelevation in one embodiment of the invention.
In figure:
1- sand bedding courses;2- concrete cushions;3- water-stop curtains;4- first segment open caissons;5- second saves open caisson;6- cutting shoes;7-
Clamp excavator;8- compaction grouting back covers.
Embodiment
The big open caisson of superelevation proposed by the present invention and construction method are made below in conjunction with the drawings and specific embodiments further detailed
Describe in detail bright.According to following explanation and claims, advantages and features of the invention will become apparent from.It need to illustrate in addition, it is attached
Figure uses using very simplified form and non-accurately ratio, only real conveniently, lucidly to aid in illustrating the present invention
Apply the purpose of example.For sake of convenience, the upper and lower direction of " on ", " under " with accompanying drawing described below is consistent, but this can not be into
For the limitation of technical solution of the present invention.
In the present embodiment, according to project situation, the well bore of first segment open caisson 4 is highly 6m, and the well bore of the second section open caisson 5 is high
Spend for 6.2m.Embodiment one
Describe the construction method of the big open caisson of superelevation of the present invention in detail with reference to Fig. 1 and Fig. 2.
The construction method of the big open caisson of superelevation, comprises the following steps:
Step 1: construction water-stop curtain 3:Open caisson surrounding is using double a diameter of 800mm high-pressure rotary jet grouting pile as sealing
Curtain, overlap height >=250mm, so as to be ready measure for open caisson construction.
Step 2: construction compaction grouting back cover 8, its slip casting thickness is 3m under open caisson concrete sealing bottom bottom plate, so as to play
Isolate the effect of shaft bottom silt and water, be further ready measure for follow-up cast-in-place open caisson.
Step 3: because open caisson is made, after the completion for the treatment of water-stop curtain 3 and the construction of compaction grouting back cover 8, by ground
Cleaning leveling, construction cushion coat, is easy to pour open caisson.Bed course includes top concrete cushion 2 and bottom sand bedding course 1.First segment sinks
Well is poured based on top concrete cushion 2, and the basis that top concrete cushion 2 and bottom sand bedding course 1 are formed is open caisson
Pour smooth construction environment be provided, so as to ensure the production quality of open caisson.
Step 4: the step-by-step construction caisson structure (not shown) above the concrete cushion 2 of step 3:The first step, carry out
Reinforcing bar colligation, formwork erection, concreting and the maintenance of first segment open caisson 4 and cutting shoe 6;Second step, treat first segment open caisson 4
When reaching design strength, based on first segment open caisson 4, the second section open caisson 5 is poured above it and is conserved, until being formed complete
Caisson structure.That is, in order to prevent the big open caisson of primary concreting superelevation and caused danger, using the side of pouring step by step
Formula, open caisson is poured respectively at twice, until forming complete caisson structure.Earthwork when certainly, in order to reduce caisson structure sinking
Resistance, caisson structure lower end is interval with multiple cutting shoes 6.
Step 5: caisson structure sinking operation, and carry out excavation and construction in well;
Step 6: dry back cover construction:When caisson structure is sunk down into away from design bottom absolute altitude 10cm, stop cutting the earth and arranging in well
Water so that when caisson structure is by deadweight sinking or close to design bottom absolute altitude, then it is stable by the sinking of 2 to 3 days, or through observation
When accumulative deflection is not more than 10mm in 8 days, you can carry out bottom sealing construction.
The construction method of the big open caisson of superelevation of the present invention, by the way that caisson structure is poured at twice, first pour the of lower section
One section open caisson, is poured and conserved to design strength after first segment open caisson, then poured above it based on first segment open caisson
Second section open caisson, then form first segment open caisson and the second section open caisson after the second section open caisson is conserved to design strength one
The caisson structure of body carries out open caisson operation, finally carries out bottom sealing, i.e., the dry construction " make, once sink twice "
Method, it effectively compensate for the defects of big open caisson of superelevation makes molding construction inconvenience and larger danger successively.
Compared with existing open caisson operation construction method, the big open caisson construction method of superelevation of the embodiment of the present invention is with as follows
Advantage:
(1) without horizontal struts system;
(2) without the risk of foundation pit collapse;
(3) the risk during the big open caisson manufacture of superelevation is reduced;
(4) the construction period is saved, reduces construction cost.
Please continue to refer to Fig. 1 to Fig. 2, it is preferable that step 3 includes:
Have wall in cutting shoe 6 uses 1.3m thickness sand bedding courses, width 2.9m;Using the full hall of 1m thickness sand bedding course under the beam of cutting shoe 6
Backfill;Sand during sand bedding course backfill is selected, is vibrated with plate vibrator layering so that is less than 30cm per thickness degree, and is sprinkled water, controls
Dry density>1.56t/m3, ground cleaning leveling, top surface is maintained at the same horizontal plane, control its absolute altitude to exist with spirit level
Within 10mm deviations, and placing sand is tamped in its space, and the compactness of sand bedding course is detected with cuttage.
Preferably, step 5 is included first starting among the open caisson gradually digging to surrounding, every layer of shoveling thickness for 0.4~
0.5m, along cutting shoe around retain 0.5~1.5m earth embankment, then again along mono- section of the every 2~3m of caisson wall to the direction of cutting shoe 6 successively
Comprehensively, symmetrically, equably skiving soil layer, cut 5~10cm every time, when soil layer cannot stand the extruding of cutting shoe 6 and rupture, open caisson is just
Soil compaction is sunk in the presence of deadweight.
Preferably, step 5 also includes conserving to design strength after the described second section open caisson, is opened using clamp excavator 7
Dug a well the earthwork of interior center section, and the earthwork in well is hoisted into ground entrucking outward transport, in well by periphery the earthwork mainly by people
Work is excavated and skewer shovel excavates.
Especially, step 6 includes:Finishing is first carried out to shaft bottom and forms it into form of pot bottom, then is dug from cutting shoe 6 to center
Go out the gutter of radiation, interior guanovulite turns into seugh, and 2~3 sumps, the depth of sump are set in middle part
For 1~2m.It is interconnected with french drain between sump well, is inserted in wellThe steel pipe of surrounding eye is mixed
Solidifying soil pipe, surrounding are filled out with cobble, the current in shaft bottom is collected in well, then discharged with immersible pump, ensured with this in open caisson
Level of ground water is less than basal surface 0.5m or so;Back cover is by metalling thick 160mm, plain concrete layer thick 200mm, and
Concrete floor up of three layers thick 600mm.
Preferably, the back cover material under cutting shoe 6 tamps, and concrete cushion answers vibration compacting, to ensure the last steady of open caisson
It is fixed, after blinding concrete reaches 50% design strength, you can carry out base plate steel bar binding, baseplate reinforcing bar should be stretched into by design requirement
In the groove of cutting shoe 6.
Embodiment two
Please continue to refer to Fig. 1 and Fig. 2, the present embodiment additionally provides the big open caisson of superelevation made using foregoing construction method.
The big open caisson of the superelevation is that cast in situs includes top cover, caisson structure and back cover, caisson structure bag into the big open caisson of the superelevation
The section open caisson 5 of first segment open caisson 4 and second for pouring vertically overlap at twice is included, caisson structure lower end is provided with cutting shoe 6, open caisson pit shaft
It is interior to be provided with partition wall, it is provided with groove on the inside of the top borehole wall of cutting shoe 6.
In summary, the big open caisson of superelevation of the invention and construction method, by " making twice, an open caisson ", save
Horizontal struts system, the risk of foundation pit collapse is avoided, open caisson is made respectively by two steps, it is heavy greatly to avoid superelevation of producing once
The risk of well manufacturing process, saves construction period and construction cost, has preferably promotional value.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention.Ability
Any change, the modification that the technical staff in domain does according to the disclosure above content, belong to scope of the claims.
Claims (8)
1. a kind of construction method of the big open caisson of superelevation, it is characterised in that comprise the following steps:
Step 1: construction water-stop curtain:Open caisson surrounding using double a diameter of 800mm high-pressure rotary jet grouting pile as water-stop curtain,
Overlap height >=250mm;
Step 2: construction compaction grouting back cover, its slip casting thickness is 3m under bottom plate;
Step 3: construction cushion coat, the bed course includes top concrete cushion and bottom sand bedding course;
Step 4: the step-by-step construction caisson structure above the concrete cushion of the step 3:The first step, carry out first segment open caisson
With reinforcing bar colligation, formwork erection, concreting and the maintenance of cutting shoe;Second step, treat that the first segment open caisson reaches design
During intensity, based on the first segment open caisson, the second section open caisson is poured above it and is conserved, until forming complete open caisson
Structure;
Step 5: caisson structure sinking operation, and carry out excavation and construction in well;
Step 6: dry back cover construction:When the caisson structure is sunk down into away from design bottom absolute altitude 10cm, stop cutting the earth and arranging in well
Water so that when the caisson structure is by deadweight sinking or close to design bottom absolute altitude, then it is stable by the sinking of 2 to 3 days, or warp
Observation added up deflection when be not more than 10mm in 8 days, you can progress bottom sealing construction.
2. construction method according to claim 1, it is characterised in that the step 3 includes:There is wall in the cutting shoe
Using 1.3m thickness sand bedding courses, width 2.9m;Using the full hall backfill of 1m thickness sand bedding course under cutting shoe beam;During sand bedding course backfill is selected
Sand, is vibrated with plate vibrator layering so that and it is less than 30cm per thickness degree, and sprinkles water, control dry density>1.56t/m3, ground
Cleaning leveling, makes top surface be maintained at the same horizontal plane, its absolute altitude is controlled within 10mm deviations with spirit level, and in its space
Middle placing sand compacting, the compactness of sand bedding course is detected with cuttage.
3. construction method according to claim 1, it is characterised in that the step 5 include first among the open caisson by
Gradually dig to surrounding, every layer of shoveling thickness is 0.4~0.5m, along cutting shoe around retain 0.5~1.5m earth embankment, then again along open caisson
Mono- section of the every 2~3m of the borehole wall to cutting shoe direction successively comprehensively, symmetrical, equably skiving soil layer, 5~10cm is cut every time, when soil layer passes through
Incessantly the extruding of cutting shoe and when rupturing, open caisson just sink in the presence of deadweight by soil compaction.
4. construction method according to claim 4, it is characterised in that the step 5 also includes treating the second section open caisson
After maintenance to design strength, the earthwork of center section in well is excavated using clamp excavator, and the earthwork in well is hoisted to ground
Entrucking is transported outward, and the earthwork in well by periphery is mainly excavated by hand excavation and skewer shovel.
5. construction method according to claim 1, it is characterised in that the step 6 includes:First shaft bottom is repaired
Form of pot bottom is formed it into, then the gutter of radiation is dug out from cutting shoe to center, interior guanovulite turns into seugh, and in
Between position set 2~3 sumps, be interconnected with french drain between sump well, inserted in wellSurrounding is with holes
The steel pipe or pipe of concrete of eye, surrounding are filled out with cobble, the current in shaft bottom is collected in well, then discharged with immersible pump, with this
Ensure the level of ground water in open caisson less than basal surface 0.5m or so;Back cover is by metalling thick 160mm, plain coagulation thick 200mm
Soil layer, and the concrete floor up of three layers that 600mm is thick.
6. construction method according to claim 4, it is characterised in that the back cover material under the cutting shoe tamps, concrete
Bed course answers vibration compacting, to ensure the last stabilization of open caisson, after blinding concrete reaches 50% design strength, you can carries out bottom plate
Reinforcing bar colligation, baseplate reinforcing bar should be stretched into the groove of cutting shoe by design requirement.
7. construction method according to claim 4, it is characterised in that the depth of the sump is 1~2m.
8. the big open caisson of superelevation that the construction method according to any one of claim 1 to 7 makes, it is characterised in that described super
Tall and big open caisson includes top cover, caisson structure and back cover, and the caisson structure includes the first segment open caisson poured at twice and the
Two section open caissons, the caisson structure lower end are provided with cutting shoe, and partition wall is provided with open caisson pit shaft, and borehole wall inner side is provided with above the cutting shoe
Groove.
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Cited By (12)
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CN108086163A (en) * | 2017-12-28 | 2018-05-29 | 中国葛洲坝集团第二工程有限公司 | Concrete open caisson high-pressure rotary-spray antiseepage cofferdam construction method |
CN108824445A (en) * | 2018-07-09 | 2018-11-16 | 上海渡舟建设工程管理咨询有限公司 | A kind of foundation pit construction engineering method with enclosure-type mud equilibrium function building enclosure |
CN108951677A (en) * | 2018-07-04 | 2018-12-07 | 岩土科技股份有限公司 | The open caisson construction method of the muck soil position underground space |
CN109537607A (en) * | 2018-12-08 | 2019-03-29 | 中交三公局桥梁隧道工程有限公司 | A kind of bottomless steel reinforced concrete convolution Caisson method for cushion cap cofferdam |
CN109594575A (en) * | 2018-12-26 | 2019-04-09 | 郑州市第建筑工程集团有限公司 | A kind of open caisson periphery grouting and reinforcing soil body construction method |
CN109706952A (en) * | 2018-12-25 | 2019-05-03 | 中建四局第六建筑工程有限公司 | Large-scale well-sinking construction method |
CN110258574A (en) * | 2019-06-10 | 2019-09-20 | 天津建岩岩土工程有限公司 | Foundation ditch construction method |
CN110761329A (en) * | 2019-10-25 | 2020-02-07 | 中铁第四勘察设计院集团有限公司 | Segmented construction method for mud-water balance open caisson station in soft soil area |
CN110761327A (en) * | 2019-10-25 | 2020-02-07 | 中铁第四勘察设计院集团有限公司 | Longitudinal segmented open caisson connecting structure of slurry balance open caisson station and mounting method |
CN112663664A (en) * | 2020-12-21 | 2021-04-16 | 中国能源建设集团浙江省电力设计院有限公司 | Combined foundation construction method for ultra-large open caisson structure |
CN113756351A (en) * | 2021-09-23 | 2021-12-07 | 黄河建工集团有限公司 | Construction method for sinking of non-drainage open caisson |
CN114032940A (en) * | 2022-01-11 | 2022-02-11 | 海安明宇智能控制技术有限公司 | Intelligent control equipment for whole process of urban open caisson construction |
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CN106958256A (en) * | 2017-03-22 | 2017-07-18 | 中建四局第五建筑工程有限公司 | A kind of placement layer by layer, the open caisson construction technique repeatedly sunk |
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CN106958256A (en) * | 2017-03-22 | 2017-07-18 | 中建四局第五建筑工程有限公司 | A kind of placement layer by layer, the open caisson construction technique repeatedly sunk |
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CN108951677A (en) * | 2018-07-04 | 2018-12-07 | 岩土科技股份有限公司 | The open caisson construction method of the muck soil position underground space |
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CN109594575A (en) * | 2018-12-26 | 2019-04-09 | 郑州市第建筑工程集团有限公司 | A kind of open caisson periphery grouting and reinforcing soil body construction method |
CN110258574A (en) * | 2019-06-10 | 2019-09-20 | 天津建岩岩土工程有限公司 | Foundation ditch construction method |
CN110761329A (en) * | 2019-10-25 | 2020-02-07 | 中铁第四勘察设计院集团有限公司 | Segmented construction method for mud-water balance open caisson station in soft soil area |
CN110761327A (en) * | 2019-10-25 | 2020-02-07 | 中铁第四勘察设计院集团有限公司 | Longitudinal segmented open caisson connecting structure of slurry balance open caisson station and mounting method |
CN110761329B (en) * | 2019-10-25 | 2021-06-22 | 中铁第四勘察设计院集团有限公司 | Segmented construction method for mud-water balance open caisson station in soft soil area |
CN110761327B (en) * | 2019-10-25 | 2024-05-28 | 中铁第四勘察设计院集团有限公司 | Longitudinal sectional open caisson connecting structure of muddy water balance open caisson station and mounting method |
CN112663664A (en) * | 2020-12-21 | 2021-04-16 | 中国能源建设集团浙江省电力设计院有限公司 | Combined foundation construction method for ultra-large open caisson structure |
CN113756351A (en) * | 2021-09-23 | 2021-12-07 | 黄河建工集团有限公司 | Construction method for sinking of non-drainage open caisson |
CN114032940A (en) * | 2022-01-11 | 2022-02-11 | 海安明宇智能控制技术有限公司 | Intelligent control equipment for whole process of urban open caisson construction |
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Application publication date: 20171208 |