CN102817347B - Reaming device for reinforcing soft soil foundation - Google Patents
Reaming device for reinforcing soft soil foundation Download PDFInfo
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- CN102817347B CN102817347B CN201210324914.4A CN201210324914A CN102817347B CN 102817347 B CN102817347 B CN 102817347B CN 201210324914 A CN201210324914 A CN 201210324914A CN 102817347 B CN102817347 B CN 102817347B
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- silt
- erosion
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- deposition
- pipe
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Abstract
The invention discloses a reaming device for reinforcing a soft soil foundation. The reaming device comprises a silt scouring pipe and a silt sucking pipe, which are looped, wherein the lower ends of the silt scouring pipe and the silt sucking pipe are closed, the silt scouring pipe comprises a radial silt scouring hole, the silt sucking pipe comprises a radial silt sucking hole, and the silt sucking hole is positioned below the silt scouring hole. The reaming device disclosed by the invention has the advantages of simple structure and easiness in implementation.
Description
Technical field
The present invention relates to reinforced soft soil ground technical field, specifically a kind of reinforced soft soil ground Counterboring apparatus.
Background technology
Dynamic replacement is that strong rammer is for one of method of reinforcing saturated soft clay foundation.The reinforcement mechanism of heavy tamping replacement method is different from dynamic compaction, it is that the material brute force of the better performances such as rubble, slabstone, slag can be clamp-oned in ground by the HI high impact utilizing weight height drop to produce, pellet pier is one by one formed in ground, native form compound foundation between pier and pier, to improve bearing capacity of foundation soil, reduce sedimentation.In dynamic replacement process, soil structures is destroyed, and foundation soil body produces excess pore water pressure, but along with the increase of time, earth structure strength can be restored.Pellet pier generally has good water permeability, is beneficial to dissipation of excess pore-water pressure in the soil body and produces consolidation.
By engineering practice, to be confirmed to have equipment simple for dynamic replacement, speed of application is fast, consolidation effect is good, cost is low, the advantages such as the soil property classification being applicable to processing is many, have now been widely used in the foundation treatment engineerings such as industrial civil building, warehouse, oil tank, warehouse, road and rail roadbed, runway.But dynamic replacement also exists the shortcoming of little, the easy protuberance of replacement amount, replacement depth low (JGJ79--2002 " building foundation treatment technical specification " emphasizes that the degree of depth of replacing pier is no more than 7 meters) always.
In addition, exist in the consolidation process of the soft foundation of weak intercalated layer for marine dredge fill place etc., existing heavy tamping replacement method can not carry out better side direction displacement to weak intercalated layer, thus causes this type of ground stabilization weak effect.For this reason, how to overcome little, the easy protuberance of replacement amount, replace uneven and can not to carry out the shortcomings such as effective side direction displacement to weak intercalated layer be those skilled in the art's problem demanding prompt solutions.The problems referred to above that a kind of dynamic replacement method that present inventors have proposed improvement exists to improve prior art.But the dynamic replacement method of this improvement needs to carry out reaming to the weak intercalated layer drawing hole.And in prior art, there is no applicable Counterboring apparatus.
In view of this, the present inventor relies on working experience for many years and abundant professional knowledge actively to be studied and innovate and has finally invented a kind of reinforced soft soil ground Counterboring apparatus, and its structure is simple, easy to implement.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the invention provides a kind of reinforced soft soil ground Counterboring apparatus, its structure is simple, easy to implement.
In order to solve the problems of the technologies described above, present invention employs following technical scheme:
Reinforced soft soil ground Counterboring apparatus, the erosion and deposition pipe that it is arranged by ring set and silt-sucking tube are formed, and the lower end of erosion and deposition pipe and silt-sucking tube is all closed, and erosion and deposition pipe has radial erosion and deposition hole, and silt-sucking tube has radial suction silt hole, inhale the below that silt hole is positioned at erosion and deposition hole.
Further, described silt-sucking tube is placed on outside erosion and deposition pipe, and the erosion and deposition hole of the radial direction on erosion and deposition pipe extends to outside silt-sucking tube.
Further, described erosion and deposition hole and suction silt hole are multiple, and multiple erosion and deposition hole and suction silt hole are uniformly distributed circumferentially respectively.
Further, described erosion and deposition hole and suction silt hole are four.
Further, described erosion and deposition pipe box is outside silt-sucking tube, and silt-sucking tube stretches out the lower end of erosion and deposition pipe, and described suction silt hole is positioned at silt-sucking tube and stretches out on the position of erosion and deposition pipe lower end.
Further, the erosion and deposition hole of described erosion and deposition pipe is connected with radial mozzle.
Further, the upper end of described erosion and deposition pipe has water inlet, and the upper end of silt-sucking tube has silt outlet.
Further, the top of described Counterboring apparatus is also provided with suspension ring.
Further, the outside of described Counterboring apparatus is also arranged with centralizer, and described centralizer comprises the sleeve pipe matched with Counterboring apparatus and the framework be connected with sleeve outer wall.
Compared with prior art, beneficial effect of the present invention is:
It is simple that reinforced soft soil ground Counterboring apparatus of the present invention has structure, feature easy to use.And reaming is effective.During operation, only need control the water level balance that pump pressure and water absorption can keep drawing in hole, easy to operate.
Accompanying drawing explanation
Fig. 1 is the structural perspective of reinforced soft soil ground Counterboring apparatus of the present invention;
Fig. 2 is the structural representation of centralizer in the present invention;
Fig. 3 is the part-structure schematic diagram of another embodiment of reinforced soft soil ground Counterboring apparatus of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, but not as a limitation of the invention.
Embodiment 1
Fig. 1 is the structural representation of reinforced soft soil ground Counterboring apparatus of the present invention; Fig. 2 is the structural representation of centralizer in the present invention.As depicted in figs. 1 and 2, reinforced soft soil ground Counterboring apparatus is made up of with the silt-sucking tube 2 being placed on outside the erosion and deposition pipe 1 of inside.Silt-sucking tube 2 external diameter 108 millimeters, wall thickness 8 millimeters.Lower end closed, apart within the scope of 0.1 to 0.2 meter, bottom, radially offers the suction silt hole 21 of four diameter 40 millimeters, is used for pumping slurries.Inhale silt hole 21 to be uniformly distributed in the circumferential.Erosion and deposition pipe 1 diameter 76 millimeters, lower end is still closed, and has 4 erosion and deposition holes 11 extended to outside silt-sucking tube 2.The extension in erosion and deposition hole forms mozzle 12, has both guided water (flow) direction, plays again the effect reducing hydraulic losses.Four erosion and deposition holes 11 are uniformly distributed in the circumferential.Inhale the below that silt hole 21 is positioned at erosion and deposition hole 11.There is water inlet 13 upper end of erosion and deposition pipe 1 by Flange joint, and the upper end of silt-sucking tube 2 is by Flange joint silt outlet 22.Be easy to change by Flange joint.The pump pressure of the flush water pump be connected with water inlet 13 is with 1 ~ 2kgf/cm
2be advisable.Water level balance in the water absorption retaining hole of the suction silt pump that adjustment is connected with silt outlet 22.The suspension ring 4 connecting Counterboring apparatus top of the present invention with hanging device carry out punching and inhale mud when apparatus of the present invention being transferred to the mud degree of depth of drawing in hole.For ensureing that device of the present invention does not offset drawing the position in hole, have centralizer 3 at silt-sucking tube 2 overcoat, centralizer 3 is made up of sleeve pipe 31 and the framework 32 that is connected with sleeve pipe 31 outer wall.Circulating time should shortly should not be grown for the first time, is generally advisable with 2 minutes.Adjust circulating time after using JJC-1D aperture detection system gaging hole, general reaming to diameter is about 2 times that draw hole.During spiral-digging pore, in order to maintain, hole wall is stable can adopt mud off pore-forming common processes.
Embodiment 2
Fig. 3 is the structural representation of another embodiment of reinforced soft soil ground Counterboring apparatus of the present invention.The present embodiment is different from embodiment 1 to be, erosion and deposition pipe 1 is placed on outside silt-sucking tube 2, and silt-sucking tube 2 stretches out the lower end of erosion and deposition pipe 1, and suction silt hole 21 is positioned at silt-sucking tube 2 and stretches out on the position of erosion and deposition pipe lower end.The erosion and deposition hole 11 of erosion and deposition pipe 1 is connected with radial mozzle 12.
Above embodiment is only exemplary embodiment of the present invention, and be not used in restriction the present invention, protection scope of the present invention is defined by the claims.Those skilled in the art can in essence of the present invention and protection domain, and make various amendment or equivalent replacement to the present invention, this amendment or equivalent replacement also should be considered as dropping in protection scope of the present invention.
Claims (4)
1. reinforced soft soil ground Counterboring apparatus, it is characterized in that, the erosion and deposition pipe that it is arranged by ring set and silt-sucking tube are formed, described silt-sucking tube is placed on outside erosion and deposition pipe, the erosion and deposition hole of the radial direction on erosion and deposition pipe extends to outside silt-sucking tube, the extension in erosion and deposition hole forms mozzle, the lower end of erosion and deposition pipe and silt-sucking tube is all closed, erosion and deposition pipe has radial erosion and deposition hole, silt-sucking tube has radial suction silt hole, inhale the below that silt hole is positioned at erosion and deposition hole, described erosion and deposition hole and suction silt hole are multiple, and multiple erosion and deposition hole and suction silt hole are uniformly distributed circumferentially respectively.
2. reinforced soft soil ground Counterboring apparatus according to claim 1, is characterized in that, described erosion and deposition hole and suction silt hole are four.
3. reinforced soft soil ground Counterboring apparatus according to claim 1, is characterized in that, the top of described Counterboring apparatus is also provided with suspension ring.
4. reinforced soft soil ground Counterboring apparatus according to claim 1, is characterized in that, the outside of described Counterboring apparatus is also arranged with centralizer, and described centralizer comprises the sleeve pipe matched with Counterboring apparatus and the framework be connected with sleeve outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210324914.4A CN102817347B (en) | 2012-09-05 | 2012-09-05 | Reaming device for reinforcing soft soil foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210324914.4A CN102817347B (en) | 2012-09-05 | 2012-09-05 | Reaming device for reinforcing soft soil foundation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102817347A CN102817347A (en) | 2012-12-12 |
| CN102817347B true CN102817347B (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210324914.4A Active CN102817347B (en) | 2012-09-05 | 2012-09-05 | Reaming device for reinforcing soft soil foundation |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85103927A (en) * | 1985-05-04 | 1986-10-29 | N·I·T·有限公司 | The manufacturing process of underground solidification structures and device |
| CN87212151U (en) * | 1987-08-28 | 1988-04-20 | 城乡建设环境保护部综合勘察研究院 | Underwater bottom pier expanding drill |
| CN1115819A (en) * | 1995-04-25 | 1996-01-31 | 孙新河 | Serial pile of screw drilling pouring pile of and their construction process and apparatus |
| CN102561311A (en) * | 2012-02-17 | 2012-07-11 | 苏州市能工基础工程有限责任公司 | Multifunctional high-pressure rotary ejecting step-reaming bit |
| CN202787225U (en) * | 2012-09-05 | 2013-03-13 | 北京东方新星石化工程股份有限公司 | Bearizing device for reinforcing soft soil foundation |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2846716B2 (en) * | 1990-07-26 | 1999-01-13 | 日本基礎技術株式会社 | Injection injection method |
| JPH086311B2 (en) * | 1991-09-27 | 1996-01-24 | 中嶋 志朗 | Ground improvement body construction method and its equipment |
-
2012
- 2012-09-05 CN CN201210324914.4A patent/CN102817347B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85103927A (en) * | 1985-05-04 | 1986-10-29 | N·I·T·有限公司 | The manufacturing process of underground solidification structures and device |
| CN87212151U (en) * | 1987-08-28 | 1988-04-20 | 城乡建设环境保护部综合勘察研究院 | Underwater bottom pier expanding drill |
| CN1115819A (en) * | 1995-04-25 | 1996-01-31 | 孙新河 | Serial pile of screw drilling pouring pile of and their construction process and apparatus |
| CN102561311A (en) * | 2012-02-17 | 2012-07-11 | 苏州市能工基础工程有限责任公司 | Multifunctional high-pressure rotary ejecting step-reaming bit |
| CN202787225U (en) * | 2012-09-05 | 2013-03-13 | 北京东方新星石化工程股份有限公司 | Bearizing device for reinforcing soft soil foundation |
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| CN102817347A (en) | 2012-12-12 |
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Effective date of registration: 20181107 Address after: 102628 B516, 4 floor, 6 building, 15 Jinyuan Road, Daxing District, Beijing. Patentee after: Beijing orient Nova survey and Design Co., Ltd. Address before: 100070 28, seven District, 188 tower, South Fourth Ring Road, Fengtai District, Beijing. Patentee before: Beijing New Oriental Star Petrochemical Engineering Co., Ltd. |