CN207004431U - Soft soil foundation exciting drilling device - Google Patents
Soft soil foundation exciting drilling device Download PDFInfo
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- CN207004431U CN207004431U CN201720548405.8U CN201720548405U CN207004431U CN 207004431 U CN207004431 U CN 207004431U CN 201720548405 U CN201720548405 U CN 201720548405U CN 207004431 U CN207004431 U CN 207004431U
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Abstract
A kind of soft soil foundation exciting drilling device that the utility model is related to, it includes well-digging steel pipe, vibration hammer, pressurization hammer and downcast well pipe.A kind of construction method of soft soil foundation exciting drilling device, well-digging steel pipe is driven underground first, medium coarse sand is filled up in well-digging steel pipe, then well-digging steel pipe is lifted, medium coarse sand forms sand drain, then well-digging steel pipe is squeezed into sand drain again, downcast well pipe is finally put into steel pipe of digging a well, take out well-digging steel pipe.The utility model soft soil foundation exciting drilling device mainly solves the dewatering construction requirement that existing drilling machinery can not adapt to complex site.Due to the method using hole making by vibration, steel pipe dado, therefore different soil property well-digging constructions are suitable for, due to taking strike-on Cheng Jing technique, medium coarse sand is by uniform compacted in hole wall, formed from upper and upper complete drainage layer, laid a good foundation for lowering of watertable, reduction water content of soil.
Description
Technical field
It the utility model is related to a kind of soft soil foundation exciting drilling device, possession base processing technology field.
Background technology
At present, large-area soft ground consolidation process, using lowering of watertable, the condition for reducing water content of soil is met
Afterwards, the dynamic reinforcements such as strong rammer are used to be widely used to improve the method for the bearing capacity of the soil body；The method for reducing soil body level of ground water
Typically realized using the method for well-points dewatering, tube well dewatering, in both techniques, its tube well dewatering is deep due to the insertion soil body
Degree can reach below 20m, and the principle of weight is released by waterpower, and precipitation depth can reach below 10m, be created to improve tamping energy
Condition, therefore tube well dewatering combination dynamic reinforcement method is being widely used in reinforced soft soil ground processing.
For tube well dewatering because its insertion depth reaches 20m scopes, the method for now inserting pipe well need to be being added using trepan
Gu soil body position pierces the soil body, while drilling, by injecting the slurries of certain proportioning mud into wellhole retaining wall, boring
After depth needed for entering, drilling rod is taken out, and put into the bellows prepared（Bellows uses high-strength PVC pipe, entire body tube wall
Filter opening is set according to soil condition, and wraps up filter screen, the closure of body bottom）, the insertion soil body of pipe well is completed, pipe well and periphery are native
After body input medium coarse sand, borehole cleaning need to be carried out to pipe well（Well-flushing）, until extracting clear water out, tube well construction is completed.In practice of construction
Whether each step is very big on successfully being influenceed into well, first, soil condition is to slurrying ratio requirement, particularly current-formed silt
Soil, because its sensitivity is higher, grout coordinate ratio is difficult the retaining wall effect for meeting the soil layer, therefore during practice of construction, pipe
Well is difficult to insert the layer.Second, in pipe well input hole, perisporium need to backfill medium coarse sand, under the conditions of current, generally using artificial
The method of backfill, backfill amount is big, and labor intensity is big, in case of used inferior materials and turned out substandard goods, then influences follow-up Rain quality.Third, in well-flushing mistake
Cheng Zhong, need to substantial amounts of clear water by the grout replacement entered in pipe well into clear water, until diving pumped clear water in pipe well, not only
Substantial amounts of electric power and artificial is wasted, and adds construction cost.Fourth, using trepan pore-forming, to soil condition requirement
Higher, such as block stone or hard formation soil, it is difficult to pore-forming, bit speed is greatly affected, or even can not creep into.
The content of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, there is provided a kind of soft soil foundation exciting drilling device, using swash
The vibration hammer connection well-digging steel pipe insertion soil body forms required pipe well hole, substantially increases work efficiency, not only Completed advance rate is fast, and technique
Reliably.
What the purpose of this utility model was realized in：
A kind of soft soil foundation exciting drilling device, it is characterised in that it includes well-digging steel pipe, vibration hammer, pressurization hammer and drop
Well pipe；
The well-digging steel pipe is vertically arranged, and the upper end of the well-digging steel pipe is fixedly connected with ring flange, the well-digging steel pipe
Upper end transverse direction side be provided with charge door, the lower end of the well-digging steel pipe is connected through the hinge and has tip loose-leaf, steel pipe of digging a well
Internal diameter is more than downcast well pipe external diameter；
The vibration hammer is connected on the ring flange of well-digging steel pipe, and the mesopore of vibration hammer is corresponding with the mesopore of ring flange；
The top of the pressurization hammer is provided with suspension ring, and lifting steel cable is connected on suspension ring；
Pressurization hammer is cylinder, and its diameter is less than well-digging pipe diameter and is more than downcast well pipe external diameter.
Dig a well the internal diameter of steel pipe and intermediate pore size >=500mm of ring flange.
Well-digging pipe diameter is more than more than downcast well pipe external diameter 200mm.
Downcast well pipe uses PVC ripple chimney filters, and caliber is 25cm~60cm, and filter opening, filter are set in PVC ripple chimney filters tube wall
Hole from top to bottom by spacing of 0.2m~0.5 etc. point arrangement, filter opening be provided with after the mesh of tube wall outer wrapping 80 nylon leaching net 2~
3 layers, or arrange generation with geotechnique.
Compared with prior art, the beneficial effects of the utility model are：
1st, implement simply, it is applied widely
Using existing board-plugging device, vibratory pile drive and extractor change well-digging steel pipe exciting drilling device.Utilize vibration hammer
Fast pore-creating is acted on, by the method for water filling strike-on, medium coarse sand is squeezed into the weak soil of periphery, sand filter blanket is formed, ensure that deep layer
The quality of precipitation.
2nd, do not influenceed by soil condition, technique is advanced feasible
Due to the bellows for having prepared completion is direct plungeed into well-digging steel pipe, without matching slurries retaining wall, therefore need not
Consider that the pipe wells caused by factor such as collapse hole do not reach required depth problem；Simultaneously because using twin motors exciting, without considering to flow
Mould influence of the complex foundation such as shape mud and block stone layer to well-digging and into well effect.During well-digging, using pressurization hammer pair
Medium coarse sand pressurization, the method to pipe well pressurization, ensure that the placed-depth of medium coarse sand and pipe well, and its technique is advanced reliable.
3rd, the engineering time is short, and speed is fast, and cost is low：
The utility model is compared with existing tradition well-digging technique, using under pipe well normal condition deep trepan injection 20m
Can typically construct 5 ~ 6 mouthfuls of well/days, and every machine need to match somebody with somebody 4 operations；And this well sinker one can mouthful/day of injection pipe well 20, often
Platform machine matches somebody with somebody 3 operations.And the borehole wall makes medium coarse sand uniformly squeeze into the periphery soil body because of strike-on, formation is top-down to cross water
Filtering layer, compared to traditional pipe well, manually not only speed is fast for input, and dewatering effect is obvious.
4th, it is environment friendly and pollution-free, construction site civilization
Due to the method using exciting pore-forming, strike-on Cheng Jing method, without slurrying retaining wall and borehole cleaning, therefore place can be protected
Hold neatly without mud, created conditions for civilized construction.
5th, deep layer precipitation, efficiency high, consolidation effect are obvious
The invention is aided with precipitation envelope wall, tube well dewatering and shallow-layer dynamic consolidation, makes soil body physical force in work progress
Learn index greatly to be changed, particularly the consolidation process to interlayer soil, its dewatering effect are more obvious.Its precipitation depth can
Controlled by the placed-depth of exciting pipe, be easy to the supervision and management of work progress, the bearing capacity for improving soft foundation is established
Solid foundation.Therefore, this method is applied to the consolidation process of road, place, underground piping etc..
The utility model soft soil foundation exciting drilling device, which mainly solves existing drilling machinery, can not adapt to complex site
Dewatering construction requirement.Due to the method using hole making by vibration, steel pipe dado, therefore it is suitable for different soil property well-digging constructions；Due to
The technique for taking strike-on Cheng Jing, medium coarse sand are formed from upper and upper complete drainage layer, to reduce ground by uniform compacted in hole wall
Lower water level, reduction water content of soil are laid a good foundation.The utility model is workable, simple and practical, and technique is advanced, before
Scape is extremely wide.
Brief description of the drawings
Fig. 1 is the schematic diagram of well-digging steel pipe.
Fig. 2 is the schematic diagram of pressurization hammer.
Fig. 3 is filling medium coarse sand diagrammatic cross-section in pipe.
Fig. 4 is well schematic diagram built in pipe.
Wherein：
Well-digging steel pipe 1, ring flange 1.1, charge door 1.2, tip loose-leaf 1.3
Pressurization hammer 2, suspension ring 2.1, lifting steel cable 2.2
Downcast well pipe 3
Medium coarse sand 4.
Embodiment
Referring to Fig. 1-Fig. 4, a kind of soft soil foundation exciting drilling device that the utility model is related to, it include well-digging steel pipe 1,
Vibration hammer, pressurization hammer 2 and downcast well pipe 3；
The well-digging steel pipe 1 is vertically arranged, and the upper end of the well-digging steel pipe 1 is fixedly connected with ring flange 1.1, steel pipe of digging a well
1 internal diameter and intermediate pore size >=500mm of ring flange 1.1, the upper end transverse direction side of the well-digging steel pipe 1 are provided with charge door
1.2, the lower end of the well-digging steel pipe 1 is connected through the hinge and has retractable tip loose-leaf 1.3.Length of steel pipe of digging a well is according to geology
The well depth of report and design determines that the well-digging internal diameter of steel pipe 1 is more than more than downcast well pipe external diameter 200mm.
During construction, well-digging steel pipe 1 can connect board-plugging device, vibratory pile drive and extractor etc..
The vibration hammer is the bi-motor vibration hammer for having mesopore, and vibration hammer is connected by ring flange 1.1 with well-digging steel pipe 1,
The mesopore of vibration hammer is corresponding with the mesopore of ring flange 1.1；The vibration hammer uses DZJ-60 vibration hammers, and its power of motor is 30KW
× 2 mesopore exciting hammer, its median pore diameter need >=500mm.
The top of the pressurization hammer 2 is provided with suspension ring 2.1, and lifting steel cable 2.2 is connected on suspension ring 2.1.
Pressurization hammer is cylinder, and its diameter is less than well-digging steel pipe and is more than downcast well pipe, and connects elevator by lifting by crane steel cable
Machine can rise or fall, and its main function is to make to insert medium coarse sand in well-digging steel pipe or downcast well pipe not carrying with well-digging steel pipe
Rise and rise.
A kind of construction method of soft soil foundation exciting drilling device, it comprises the following steps：
Step 1: assembling soft soil foundation exciting drilling device
Vibration hammer is connected to the upper end of well-digging steel pipe；
Step 2: injection pipe well, vibration hammer is connected on a machine, confirm it is intact it is errorless after, you can carry out well-digging construction；
2.1st, steel pipe of digging a well is aligned, and checks that tip loose-leaf is in closure state, and exciting hammer, well-digging are opened according to design requirement
Steel pipe sinks down into required depth, stops exciting under the conditions of the exciting effect and deadweight of vibration hammer；
2.2nd, now charge door more than ground, medium coarse sand 4 is poured into charge door to well-digging steel pipe full packages, is then being shaken
Dynamic hammer mesopore falls into pressurization hammer, while the water filling in charge door；
2.3rd, open vibration hammer and slowly lift well-digging steel pipe, now tip loose-leaf is opened with the press-in of top medium coarse sand；
Pressurization hammer falls with medium coarse sand in well-digging steel pipe, while keeps the water filling of charge door, is fallen into the medium coarse sand ensured in charge door
Dig a well in steel pipe, until well-digging steel pipe proposes more than ground；Digging a well, corresponding below ground region is thick completely by before for steel pipe
Sand fills up to form sand drain.
Step 3: strike-on pore-forming：Lift pressurization hammer, after the tip loose-leaf closure for checking well-digging steel pipe, alignment has formed sand
In the hole of well, well-digging steel pipe is squeezed into required depth again, during which keeps the exciting of vibration hammer；
3.1st, after well-digging steel pipe squeezes into required depth, stop exciting, downcast well pipe is passed through to the mesopore of vibration hammer, input is beaten
In well steel pipe, make depth needed for downcast well pipe arrival；
3.2nd, into well-digging steel pipe, input pressurization is hammered into shape again so that pressurization hammer props up downcast well pipe upper end；
3.3rd, vibration hammer is opened, slowly lifts well-digging steel pipe, pressurization hammer keeps in situ；
3.4th, after steel pipe of digging a well extracts ground, pressurization hammer is sling, it is next into next pipe well point injection then to move stake machine
Pipe well.
3.5th, immersible pump is put into downcast well pipe, tube well dewatering can be carried out after energization.
Downcast well pipe uses PVC ripple chimney filters, and caliber is 25cm~60cm, and filter opening, filter are set in PVC ripple chimney filters tube wall
Hole from top to bottom by spacing of 0.2m~0.5 etc. point arrangement, filter opening be provided with after the mesh of tube wall outer wrapping 80 nylon leaching net 2~
3 layers, or arrange generation with geotechnique.Tubes welding can determine according to the infiltration coefficient of geological conditions and soil, generally 15m × 15m, manage
Well buries deep according to needing reinforcement depth to determine.
Claims (4)
1. a kind of soft soil foundation exciting drilling device, it is characterised in that it includes well-digging steel pipe, vibration hammer, pressurization hammer and precipitation
Well casing；
The well-digging steel pipe is vertically arranged, and the upper end of the well-digging steel pipe is fixedly connected with ring flange, the upper of steel pipe of digging a well
Horizontal side is held to be provided with charge door, the lower end of the well-digging steel pipe is connected through the hinge and has tip loose-leaf, pipe diameter of digging a well
More than downcast well pipe external diameter；
The vibration hammer is connected on the ring flange of well-digging steel pipe, and the mesopore of vibration hammer is corresponding with the mesopore of ring flange；
The top of the pressurization hammer is provided with suspension ring, and lifting steel cable is connected on suspension ring；
Pressurization hammer is cylinder, and its diameter is less than well-digging pipe diameter and is more than downcast well pipe external diameter.
A kind of 2. soft soil foundation exciting drilling device according to claim 1, it is characterised in that the internal diameter for steel pipe of digging a well with
And intermediate pore size >=500mm of ring flange.
3. a kind of soft soil foundation exciting drilling device according to claim 1, it is characterised in that well-digging pipe diameter is more than
More than downcast well pipe external diameter 200mm.
4. a kind of soft soil foundation exciting drilling device according to claim 1, it is characterised in that downcast well pipe uses PVC ripples
Line chimney filter, caliber are 25cm~60cm, set filter opening in PVC ripple chimney filters tube wall, filter opening is from top to bottom by the spacing of 0.2m~0.5
Decile arrange, filter opening be provided with after the mesh of tube wall outer wrapping 80 2~3 layers of nylon leaching net, or with geotechnique arrangement generation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720548405.8U CN207004431U (en) | 2017-05-17 | 2017-05-17 | Soft soil foundation exciting drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720548405.8U CN207004431U (en) | 2017-05-17 | 2017-05-17 | Soft soil foundation exciting drilling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207004431U true CN207004431U (en) | 2018-02-13 |
Family
ID=61445035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720548405.8U Active CN207004431U (en) | 2017-05-17 | 2017-05-17 | Soft soil foundation exciting drilling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207004431U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060648A (en) * | 2017-05-17 | 2017-08-18 | 福建岩土工程勘察研究院 | Soft soil foundation exciting drilling device and its construction method |
| CN110206481A (en) * | 2019-04-24 | 2019-09-06 | 武汉一冶建筑安装工程有限责任公司 | Dewatering well constructing device |
-
2017
- 2017-05-17 CN CN201720548405.8U patent/CN207004431U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060648A (en) * | 2017-05-17 | 2017-08-18 | 福建岩土工程勘察研究院 | Soft soil foundation exciting drilling device and its construction method |
| CN110206481A (en) * | 2019-04-24 | 2019-09-06 | 武汉一冶建筑安装工程有限责任公司 | Dewatering well constructing device |
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| GR01 | Patent grant | ||
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Address after: 350000 115 East Street, Fuzhou, Fujian Co-patentee after: Fujian HengDi Hengyuan Construction Co., Ltd. Patentee after: Fujian geotechnical engineering survey and Research Institute Co., Ltd. Co-patentee after: FUJIAN EVERSUN TECHNOLOGY CO., LTD. Co-patentee after: China Municipal Engineering Northwest Design & Research Institute Co., Ltd. Co-patentee after: Jiangsu Cheng Gong Science and Technology Ltd. Address before: 350000 115 East Street, Fuzhou, Fujian Co-patentee before: Fujian exploration Foundation Engineering Co Patentee before: Fujian Yantu Engineering Survey Institute Co-patentee before: FUJIAN EVERSUN TECHNOLOGY CO., LTD. Co-patentee before: China Municipal Engineering Northwest Design & Research Institute Co., Ltd. Co-patentee before: Jiangsu Cheng Gong Science and Technology Ltd. |