CN110144918A - Hypogee dewatering well antiseepage plugging construction method - Google Patents
Hypogee dewatering well antiseepage plugging construction method Download PDFInfo
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- CN110144918A CN110144918A CN201910429045.3A CN201910429045A CN110144918A CN 110144918 A CN110144918 A CN 110144918A CN 201910429045 A CN201910429045 A CN 201910429045A CN 110144918 A CN110144918 A CN 110144918A
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- Prior art keywords
- partition
- pipeline
- dewatering well
- plugging
- hypogee
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- 238000010276 construction Methods 0.000 title claims abstract description 35
- 238000005192 partition Methods 0.000 claims abstract description 44
- 239000000463 material Substances 0.000 claims abstract description 29
- 239000002689 soil Substances 0.000 claims abstract description 17
- 239000011241 protective layer Substances 0.000 claims abstract description 8
- 230000001680 brushing effect Effects 0.000 claims abstract description 7
- 239000008267 milk Substances 0.000 claims abstract description 7
- 210000004080 milk Anatomy 0.000 claims abstract description 7
- 235000013336 milk Nutrition 0.000 claims abstract description 7
- 238000012805 post-processing Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000011440 grout Substances 0.000 claims description 11
- 239000002002 slurry Substances 0.000 claims description 10
- 239000004567 concrete Substances 0.000 claims description 8
- 239000004568 cement Substances 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000004816 latex Substances 0.000 claims description 4
- 229920000126 latex Polymers 0.000 claims description 4
- 239000010410 layer Substances 0.000 claims description 4
- 239000004570 mortar (masonry) Substances 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 235000019353 potassium silicate Nutrition 0.000 claims description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- 238000010073 coating (rubber) Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000007547 defect Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 238000010410 dusting Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 230000008595 infiltration Effects 0.000 abstract description 7
- 238000001764 infiltration Methods 0.000 abstract description 7
- 230000002787 reinforcement Effects 0.000 abstract description 6
- 230000007774 longterm Effects 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- 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
- E02D19/10—Restraining of underground water by lowering level of ground water
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
- E21B33/14—Methods or devices for cementing, for plugging holes, crevices, or the like for cementing casings into boreholes
Abstract
The invention discloses hypogee dewatering well antiseepage plugging construction methods, include the following steps specific steps: 1) determining closure site: determining closure site and clear up closure site periphery；2) partition and line treatment: make and install partition and pipeline；3) rigid material plugged zone blocks: rigid plugging material is perfused on the top of partition；4) grouting material plugged zone blocks: grouting material is perfused in the lower part of partition；5) it duct grouting: is in the milk to pipeline；6) pipe plugging and post-processing: leak stopping is carried out to pipeline and cuts extra pipeline, brushing protective layer；Effectively solution blocks long-term seepage problem after dewatering well, has closure speed fast, is not in infiltration situation after closure, there are also to surrounding soil reinforcement effect.
Description
Technical field
The present invention relates to hypogee waterproofing and leakage-stopping and reinforcement technique fields, are that hypogee dewatering well is anti-specifically
Seep plugging construction method.
Background technique
Basement refers to that room floors are lower than half of the height more than the stud of outdoor ground level.Multilayer and
High-rise needs deeper basis, to build basement under architecture bottom layer, can both increase use using this height
Area, and room heart backfill can be saved, it can be said to be both economical.Basement is built below housing bottom, can be improved for building
Ground efficiency.Some skyscraper bases buried depth is very big, makes full use of this depth to build basement, economic effect and use
Effect is all good.Basement is divided by function, there is basement without protective requirement and emptying basement；By structural material point, have brick wall structure and
Concrete structure basement has full basement and partly-exposed basement by structural form point.
It is in earth work, ground and basic engineering construction in the dewatering well construction environment relatively high for level of ground water
An important technique measure, can moisture in drainage base soil, promote soil solidifying, improve foundation strength, while can reduce
The lateral displacement of the slight slope soil body and sedimentation, stable side slope, eliminate quicksand, reduce substrate soil protuberance, make positioned at natural groundwater with
Under ground and basic engineering construction be avoided that the influence of underground water, provide comparison dry execution conditions, the earthwork can also be reduced
It measures, shorten the construction period, improving construction quality and guarantee construction safety.
The construction technology of existing hypogee plugging dewatering well technology is broadly divided into following two kinds:
One, after dewatering well draws water precipitation, penetration concrete is forced to block immediately.
Two, toward pouring into rubble in dewatering well, then concrete closure is filled.
But but there are the following problems for the prior art:
1. blocking time is too long.
2. cannot combine closely between concrete and the soil body, temperature and sedimentation variation be easy to cause displacement, cause to seep water.
3. the permanent time blocks, there is infiltration situation in edge, generation infiltration post-processing construction is complicated, and difficulty of construction is big,
It is costly.
Summary of the invention
The purpose of the present invention is to provide hypogee dewatering well antiseepage plugging construction method, effectively solve to block dewatering well
Long-term seepage problem afterwards has closure speed fast, is not in infiltration situation after closure, and there are also to surrounding soil reinforcement effect.
The present invention is achieved through the following technical solutions: hypogee dewatering well antiseepage plugging construction method, including following steps
Rapid specific steps:
1) it determines closure site: determining closure site and clear up closure site periphery；
2) partition and line treatment: make and install partition and pipeline；
3) rigid material plugged zone blocks: rigid plugging material is perfused on the top of partition；
4) grouting material plugged zone blocks: grouting material is perfused in the lower part of partition；
5) it duct grouting: is in the milk to pipeline；
6) pipe plugging and post-processing: leak stopping is carried out to pipeline and cuts extra pipeline, brushing protective layer.
Further is that the present invention is better achieved, and especially uses following set-up modes: the step 1) specifically: to drop
Well periphery substrate surface removes dusting, decortication tilts class defect, and dust, oil removal is clean.
Further is that the present invention is better achieved, and especially use following set-up modes: the step 2 includes following tools
Body step:
2.1) it makes and partition and pipeline is installed:
Partition is designed and produced according to dewatering well hole diameter, also designs and produces two pipelines, one is short tube, and one is long tube；
2.2) partition and pipeline are put into:
It according to design height, is marked on pipeline, after the connection of one section of a section and checks, be put into dewatering well, by partition
It is arranged at from dewatering well well head 2m, and partition and pipeline is welded together.
It is further for the present invention is better achieved, especially use following set-up modes: the bottom end of the short tube be located at every
Plate top or the upper contact with partition.
Further is that the present invention is better achieved, and especially use following set-up modes: the bottom end of the long tube is placed in drop
At 0.2 ~ 0.5m of well shaft bottom.
Further is that the present invention is better achieved, and especially uses following set-up modes: the step 3) specifically: will be special
Fast type polymer repairing mortar, chance water do not disperse water blockoff grout material and are mixed according to the ratio of 0.9 ~ 1.1:0.45 ~ 0.55
It is even, pour into partition top, and it is closely knit fill to dewatering well well head, check whether meet the requirements after cured, satisfaction then enter under
One procedure.
Further is that the present invention is better achieved, and especially uses following set-up modes: the step 4) specifically: will be special
Kind of cement, waterglass, latex, micro-expanding agent, expansion type concrete by 0.8 ~ 1.2:0.9 ~ 1.2:0.04 ~ 0.06:0.01 ~
The ratio of 0.03:0.03 ~ 0.05 is mixed evenly, and pours into from long tube, until short tube flows out slurries.
Further is that the present invention is better achieved, and especially uses following set-up modes: the step 5) specifically:
After short tube flows out slurries, short tube is become into Grouting Pipe, connects grouter, long tube and short tube are in the milk simultaneously, control pressure
(preferred control pressure is in 1.5 ~ 2.0MPa), makes slurries squeeze the periphery soil body, combines closely to form entirety with the soil body, Bu Nengchao
Cross structure ability to bear.
Further is that the present invention is better achieved, and especially use following set-up modes: the step 6) includes following steps
Rapid specific steps:
6.1) plugging grouting pipeline:
After the completion of grouting, grouting valve is closed, pipeline opening is blocked；
6.2) pipeline and brushing protective layer are cut
It is to be solidified to reach desired strength, and observe it is impermeable after, cut pipeline, and cut place external coating rubber coating protect
Layer.
Further is that the present invention is better achieved, and especially uses following set-up modes: also wrapping before the step 1)
Include preparation of construction step: specific aim works out arrangement and method for construction, and is audited, ratifies to complete；Detailed technology tells somebody what one's real intentions are, placing of material, labor
Power prepares, tool preparation is both needed to meet the requirements.
Compared with prior art, the present invention have the following advantages that and the utility model has the advantages that
(1) present invention effectively solves long-term seepage problem after closure dewatering well, and with blocking, speed is fast, is not in seep after closure
Regimen condition, there are also to surrounding soil reinforcement effect.
(2) effectively dewatering well antiseepage can be blocked using present invention construction gained dewatering well antiseepage plugging structure body and is tied
It combines closely between structure and the soil body, avoids the occurrence of causing displacement, further energy when there is temperature or sedimentation variation
The case where enough avoiding the occurrence of infiltration.
(3) present invention is formed by dewatering well antiseepage plugging structure and the reinforcement effect of building surrounding soil is better than passing
System technique is formed by dewatering well, and the effect for stablizing surrounding ground is more excellent.
Detailed description of the invention
Fig. 1 is dewatering well antiseepage plugging structure body structural schematic diagram of the present invention.
Fig. 2 is dewatering well antiseepage plugging structure body cross-sectional view of the present invention.
Wherein, 1- dewatering well, 2- drainpipe, 3- grout pipe, 4- rigid material plugged zone, 5- partition, 6- grouting material envelope
Blocking layer.
Specific embodiment
The present invention is described in further detail below with reference to embodiment, embodiments of the present invention are not limited thereto.
To keep the purposes, technical schemes and advantages of embodiment of the present invention clearer, implement below in conjunction with the present invention
The technical solution in embodiment of the present invention is clearly and completely described in attached drawing in mode, it is clear that described reality
The mode of applying is some embodiments of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ability
Domain those of ordinary skill every other embodiment obtained without creative efforts, belongs to the present invention
The range of protection.Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit below and is wanted
The scope of the present invention of protection is sought, but is merely representative of selected embodiment of the invention.Based on the embodiment in the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts belongs to this
Invent the range of protection.
It is worth noting that: it is in this application, certain to need to be applied to techniques known or conventional technical means
When, applicant there may be do not illustrate the well-known technique specifically in the text or/and conventional technical means be it is a kind of what
Technological means, but cannot think the application not announce the technological means in text specifically and not meet Patent Law the 20th
The case where six third item.
Embodiment 1:
The present invention designs hypogee dewatering well antiseepage plugging construction method, effectively solves infiltration for a long time after blocking dewatering well and asks
Topic has closure speed fast, is not in infiltration situation after closure, there are also to surrounding soil reinforcement effect, especially uses following
Set-up mode: include the following steps specific steps:
1) it determines closure site: determining closure site and clear up closure site periphery；
2) partition and line treatment: make and install partition and pipeline；
3) rigid material plugged zone blocks: rigid plugging material is perfused on the top of partition；
4) grouting material plugged zone blocks: grouting material is perfused in the lower part of partition；
5) it duct grouting: is in the milk to pipeline；
6) pipe plugging and post-processing: leak stopping is carried out to pipeline and cuts extra pipeline, brushing protective layer.
Embodiment 2:
The present embodiment is further optimized based on the above embodiments, and the ground of same technique scheme is used with previous embodiment
Side will not be described in great detail, as shown in Figure 1 and Figure 2, further for the present invention is better achieved, and especially use following set-up modes: institute
State step 1) specifically: dusting is removed to 1 periphery substrate surface of dewatering well, decortication tilts class defect, and by dust, oil removal
Completely.
Embodiment 3:
The present embodiment is to advanced optimize based on any of the above embodiments, uses same technique scheme with previous embodiment
Place will not be described in great detail, it is as shown in Figure 1 and Figure 2, further for the present invention is better achieved, especially use following setting sides
Formula: the step 2 includes following specific steps:
2.1) it makes and partition 5 and pipeline is installed:
Partition 5 is designed and produced according to dewatering well hole diameter, also designs and produces two pipelines, one is short tube, and one is long tube；As
It is preferable to provide scheme, production 5 size dimension of partition is designed according to 1 hole diameter of dewatering well, and duct length is set according to 1 depth of dewatering well
Meter, short tube be drainpipe (preferred Design of length are as follows: enter well location and set to partition position, caliber: 32mm) 2, a root long pipe
It (is combined using fastener connection type for grout pipe, length: enters well location and set from 0.2 ~ 0.5m high of shaft bottom, be preferably arranged to from well
Bottom 300mm high, caliber: 32mm) 3；Preferably, partition 5 uses the steel plate of 4-6mm.
2.2) partition and pipeline are put into:
It according to design height, is marked on pipeline, after the connection of one section of a section and checks, be put into dewatering well 1, by partition
5 are arranged at from dewatering well well head 2m, and partition and pipeline are welded together；After being put into designated position, fixes and checks,
It has been checked that, carry out subsequent processing.
Embodiment 4:
The present embodiment is to advanced optimize based on any of the above embodiments, uses same technique scheme with previous embodiment
Place will not be described in great detail, it is as shown in Figure 1 and Figure 2, further for the present invention is better achieved, especially use following setting sides
Formula: the bottom end of the short tube (drainpipe 2) is located at 5 top of partition or the upper contact with partition 5.
Embodiment 5:
The present embodiment is to advanced optimize based on any of the above embodiments, uses same technique scheme with previous embodiment
Place will not be described in great detail, it is as shown in Figure 1 and Figure 2, further for the present invention is better achieved, especially use following setting sides
Formula: the bottom end of the long tube (grout pipe 3) is placed at 0.2 ~ 0.5m of dewatering well shaft bottom, it is preferred that the bottom end of grout pipe 3 is from precipitation
1 shaft bottom 300mm of well.
Embodiment 6:
The present embodiment is to advanced optimize based on any of the above embodiments, uses same technique scheme with previous embodiment
Place will not be described in great detail, it is as shown in Figure 1 and Figure 2, further for the present invention is better achieved, especially use following setting sides
Formula: the step 3) specifically: special fast type polymer repairing mortar, chance water are not dispersed into water blockoff grout material according to 0.9 ~ 1.1:
0.45 ~ 0.55 ratio is mixed evenly, and pours into partition top, and it is closely knit fill to dewatering well well head, check after cured
Whether meet the requirements, meets and then enter next process；
As preferred design scheme, rigid material is that special fast type polymer repairing mortar, chance water are not dispersed water blockoff grout material
It is mixed evenly and obtains according to the ratio of 1:0.5, pour into 5 top of partition, it should be noted that pour into closely knit, cannot have cavity, fill
To well head, rigid material plugged zone 4 is formed；It is to be solidified to reach desired strength (when preferably 80% or more), carry out next procedure.
Embodiment 7:
The present embodiment is to advanced optimize based on any of the above embodiments, uses same technique scheme with previous embodiment
Place will not be described in great detail, it is as shown in Figure 1 and Figure 2, further for the present invention is better achieved, especially use following setting sides
Formula: the step 4) specifically: by special cement (for example meeting the not distributed cement of water), waterglass, latex, micro-expanding agent, hair
Alveolitoid concrete is mixed evenly in 0.8 ~ 1.2:0.9 ~ 1.2:0.04 ~ 0.06:0.01 ~ 0.03:0.03 ~ 0.05 ratio,
It is poured into from long tube, until short tube flows out slurries；During pouring into, since grouting material is than water weight, bottom, water can be sunk to
Top drainage hole excludes in meeting, therefore needs until drainpipe 2 flows out slurries；As preferred design scheme, special cement
(for example meeting the not distributed cement of water), waterglass, latex, micro-expanding agent, expansion type concrete press 1:0.9:0.05:0.02:
0.05 ratio is mixed evenly.
Embodiment 8:
The present embodiment is to advanced optimize based on any of the above embodiments, uses same technique scheme with previous embodiment
Place will not be described in great detail, it is as shown in Figure 1 and Figure 2, further for the present invention is better achieved, especially use following setting sides
Formula: the step 5) specifically:
After short tube (drainpipe 2) flows out slurries, short tube (drainpipe 2) is become into Grouting Pipe, connects grouter, long tube (grout pipe
3) it is in the milk simultaneously with short tube (drainpipe 2), controls pressure (preferred control pressure is in 1.5 ~ 2.0MPa), slurries is made to squeeze week
The side soil body, combines closely to form entirety with the soil body, no more than structure ability to bear.
Embodiment 9:
The present embodiment is to advanced optimize based on any of the above embodiments, uses same technique scheme with previous embodiment
Place will not be described in great detail, it is as shown in Figure 1 and Figure 2, further for the present invention is better achieved, especially use following setting sides
Formula: the step 6) includes the following steps specific steps:
6.1) plugging grouting pipeline:
After the completion of grouting, grouting valve is closed, pipeline opening (pipeline opening of drainpipe 2 and grout pipe 3) is blocked；
6.2) pipeline and brushing protective layer are cut
It is to be solidified to reach desired strength, and observe it is impermeable after, cutting pipeline (flushed with the top of dewatering well 1 carry out drainpipe 2
With the cutting of grout pipe 3), and in cut place external coating rubber coating protective layer.
Embodiment 10:
The present embodiment is to advanced optimize based on any of the above embodiments, uses same technique scheme with previous embodiment
Place will not be described in great detail, it is as shown in Figure 1 and Figure 2, further for the present invention is better achieved, especially use following setting sides
Formula: further including preparation of construction step before the step 1): specific aim works out arrangement and method for construction, and (this arrangement and method for construction is according to each work
The requirement of journey is different and different, and auditor cannot not should specifically disclose the arrangement and method for construction when examining, and think the invention
Insufficient disclosure), and audited, ratify to complete；Detailed technology is told somebody what one's real intentions are, placing of material, labour prepares, tool preparation is both needed to accord with
It closes and requires.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is all according to
According to technical spirit any simple modification to the above embodiments of the invention, equivalent variations, protection of the invention is each fallen within
Within the scope of.
Claims (10)
1. hypogee dewatering well antiseepage plugging construction method, it is characterised in that: include the following steps specific steps:
1) it determines closure site: determining closure site and clear up closure site periphery；
2) partition and line treatment: make and install partition and pipeline；
3) rigid material plugged zone blocks: rigid plugging material is perfused on the top of partition；
4) grouting material plugged zone blocks: grouting material is perfused in the lower part of partition；
5) it duct grouting: is in the milk to pipeline；
6) pipe plugging and post-processing: leak stopping is carried out to pipeline and cuts extra pipeline, brushing protective layer.
2. dewatering well antiseepage plugging construction method in hypogee according to claim 1, it is characterised in that: the step 1)
Specifically: dusting, decortication tilting class defect are removed to dewatering well periphery substrate surface, and dust, oil removal is clean.
3. dewatering well antiseepage plugging construction method in hypogee according to claim 1 or 2, it is characterised in that: the step
2) rapid includes following specific steps:
2.1) it makes and partition and pipeline is installed:
Partition is designed and produced according to dewatering well hole diameter, also designs and produces two pipelines, one is short tube, and one is long tube；
2.2) partition and pipeline are put into:
It according to design height, is marked on pipeline, after the connection of one section of a section and checks, be put into dewatering well, by partition
It is arranged at from dewatering well well head 2m, and partition and pipeline is welded together.
4. dewatering well antiseepage plugging construction method in hypogee according to claim 3, it is characterised in that: the short tube
Bottom end is located above partition or the upper contact with partition.
5. dewatering well antiseepage plugging construction method in hypogee according to claim 3, it is characterised in that: the long tube
Bottom end is placed at 0.2 ~ 0.5m of dewatering well shaft bottom.
6. dewatering well antiseepage plugging construction method in hypogee according to claim 3, it is characterised in that: the step 3)
Specifically: special fast type polymer repairing mortar, chance water are not dispersed into water blockoff grout material according to the ratio of 0.9 ~ 1.1:0.45 ~ 0.55
Be mixed evenly, pour into partition top, and it is closely knit fill to dewatering well well head, check whether meet the requirements after cured, it is full
It is sufficient then enter next process.
7. dewatering well antiseepage plugging construction method in hypogee according to claim 3, it is characterised in that: the step 4)
Specifically: by special cement, waterglass, latex, micro-expanding agent, expansion type concrete by 0.8 ~ 1.2:0.9 ~ 1.2:0.04 ~
The ratio of 0.06:0.01 ~ 0.03:0.03 ~ 0.05 is mixed evenly, and pours into from long tube, until short tube flows out slurries.
8. dewatering well antiseepage plugging construction method in hypogee according to claim 7, it is characterised in that: the step 5)
Specifically:
After short tube flows out slurries, short tube being become into Grouting Pipe, connects grouter, long tube and short tube are in the milk simultaneously, pressure is controlled,
So that slurries is squeezed the periphery soil body, combines closely to form entirety with the soil body, no more than structure ability to bear.
9. the described in any item hypogee dewatering well antiseepage plugging construction methods of according to claim 1-2,4-8, feature exist
In: the step 6) includes the following steps specific steps:
6.1) plugging grouting pipeline:
After the completion of grouting, grouting valve is closed, pipeline opening is blocked；
6.2) pipeline and brushing protective layer are cut
It is to be solidified to reach desired strength, and observe it is impermeable after, cut pipeline, and cut place external coating rubber coating protect
Layer.
10. the described in any item hypogee dewatering well antiseepage plugging construction methods of according to claim 1-2,4-8, feature exist
In: further include preparation of construction step before the step 1): specific aim works out arrangement and method for construction, and is audited, ratifies to complete；In detail
It carefully confides a technological secret, placing of material, labour prepares, tool preparation is both needed to meet the requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910429045.3A CN110144918A (en) | 2019-05-22 | 2019-05-22 | Hypogee dewatering well antiseepage plugging construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910429045.3A CN110144918A (en) | 2019-05-22 | 2019-05-22 | Hypogee dewatering well antiseepage plugging construction method |
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| CN110144918A true CN110144918A (en) | 2019-08-20 |
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| CN201910429045.3A Pending CN110144918A (en) | 2019-05-22 | 2019-05-22 | Hypogee dewatering well antiseepage plugging construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114457828A (en) * | 2022-01-24 | 2022-05-10 | 北京城建设计发展集团股份有限公司 | Construction method of open cut fabricated underground structure foundation pit dewatering well |
| CN117431985A (en) * | 2023-12-21 | 2024-01-23 | 上海建工二建集团有限公司 | Underground diaphragm wall door type emergency plugging device and method |
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| CN201326176Y (en) * | 2008-12-15 | 2009-10-14 | 上海市第二建筑有限公司 | Deep foundation pit dewatering retention well |
| CN108166517A (en) * | 2018-02-10 | 2018-06-15 | 中国建筑第五工程局有限公司 | For the shut-in well method and well-sealing device of superelevation floor height hydraulic pressure dewatering well of deep well |
| CN210194655U (en) * | 2019-05-22 | 2020-03-27 | 四川童燊防水工程有限公司 | Seepage-proofing plugging reinforcing structure for dewatering well of underground building |
-
2019
- 2019-05-22 CN CN201910429045.3A patent/CN110144918A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN117431985A (en) * | 2023-12-21 | 2024-01-23 | 上海建工二建集团有限公司 | Underground diaphragm wall door type emergency plugging device and method |
| CN117431985B (en) * | 2023-12-21 | 2024-03-15 | 上海建工二建集团有限公司 | Underground diaphragm wall door type emergency plugging device and method |
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