CN109403317A - A kind of triple pipe rotary spray bored pile system and pile making method - Google Patents
A kind of triple pipe rotary spray bored pile system and pile making method Download PDFInfo
- Publication number
- CN109403317A CN109403317A CN201811435805.3A CN201811435805A CN109403317A CN 109403317 A CN109403317 A CN 109403317A CN 201811435805 A CN201811435805 A CN 201811435805A CN 109403317 A CN109403317 A CN 109403317A
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- Prior art keywords
- pipe
- pressure
- connect
- grouting pump
- triple
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
Abstract
The invention discloses a kind of triple pipe rotary spray bored pile system and pile making methods, the system includes spray head, spray head is connect with grout pipe, grout pipe periphery is equipped with retaining wall, retaining wall top is connect by return pipe with reservoir, filter screen is equipped between return pipe and reservoir, reservoir is connect with auxiliary grouting pump, grout pipe is connect by triple pipe fittings with serum preventer, triple pipe fittings pass through mud tube respectively, tracheae, water pipe and grouting pump, air compressor, high-pressure hydraulic pump connection, grouting pump is set on joint blender, and it is connected by pipeline with blender is combined, joint blender is connect by valve and pipeline with auxiliary grouting pump.The present invention by serum preventer can either real-time monitoring be in the milk pipe pressure, and slurry plugs pressure gauge can be prevented and the phenomenon that failure occur.
Description
Technical field
The present invention relates to a kind of triple pipe rotary spray bored pile systems, belong to construction engineering technical field.
Technical background
High-pressure rotary-spray construction technology is to cause rotary churning pile using whirl spraying equipment to improve the bearing capacity of ground, also Chang Zuolian
Lock stud construction or vectored injection at diaphragm wall be used for foundation anti-seepage.
Whirl spraying method is suitable for the reinforcing of the grounds such as sand, cohesive soil, mud, also has preferable test to the antiseepage of sandy gravel
Effect.Initial High-pressure Spiral Spray Technology only passes through high pressure slurry pump jet cement slurries or chemical grout using single pipe method,
Expanded diameter range is 0.3m~0.8m；Thereafter double tube method, tri-tube method etc. are developed in succession, and double tube method is to pass through air
Compressor blends high pressure gas and cement slurry, and coaxially sprays, and the diameter of pile is made to have biggish increase than single pipe method；Three
Weight tube method is to wrap up high pressure water flow with compressed air and blend with cement slurry, first the cutting underground soil body, is formed larger-diameter
Hack hole, then slurries are filled and mixed with grouting pump, so that expanded diameter is greatly improved with first two method, pile
Diameter range 1.5m~2.0m.
Existing whirl spraying law technology, hydraulic engineering cut-pff wall, city underground engineering, in terms of obtain
It is widely applied, but with the increase that piling technique requires, according to the characteristic of ground different level material, in ground different depth
Cutting pressure required for pile is different.
Therefore, cutting different soil is controlled by monitoring and adjusting the pressure of air and high pressure water flow there is an urgent need to a kind of
Pressure, and can by the remaining slurry in filling process carry out repeated recycling utilize bored pile system.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of triple pipe rotary spray bored pile system and pile making method,
The system by triple tube joint whirl spraying pile, can Reasonable Regulation And Control pile diameter dimension and cutting soil pressure size and
Remaining slurry can be made full use of rapidly and efficiently to realize the purpose of pile.
The technical solution of the present invention is as follows: a kind of triple pipe rotary spray bored pile system, including spray head, the spray head and filling
Pipe connection is starched, the grout pipe periphery is equipped with retaining wall, and the retaining wall top is connect by return pipe with reservoir, the return pipe
Between reservoir be equipped with filter screen, the reservoir with auxiliary grouting pump connect, the grout pipe pass through triple pipe fittings and
The connection of serum preventer, triple pipe fittings pass through mud tube, tracheae, water pipe and grouting pump, air compressor, high pressure respectively
Water pump connection, the grouting pump are set on joint blender, and are connected by pipeline with blender is combined, the joint stirring
Machine is connect by valve and pipeline with auxiliary grouting pump.
The serum preventer includes cylinder sleeve, and leather bag is equipped with inside the cylinder sleeve, fills oily liquids in the leather bag, institute
It states cylinder sleeve bottom and connects grout pipe, top connects pressure gauge.
A kind of triple pipe rotary spray bored pile system provided by the invention has the following advantages that compared with prior art
And effect:
1, the present invention by serum preventer can either real-time monitoring be in the milk pipe pressure, and slurry plugs pressure can be prevented
It counts and the phenomenon that failure occurs.
2, the present invention is recycled the remaining slurry in filling process by return pipe, filter screen, auxiliary grouting pump, joint blender
Recycling, not only improved the utilization efficiency of slurries raw material, but also solve the problems, such as remaining slurry processing, realize remaining slurry recycling and
Stirring perfusion circulation.
3, the present invention can adjust the pressure size of air compressor and high-pressure hydraulic pump, to control by pressure gauge registration
The diameter dimension of spray head whirl spraying pile.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of triple pipe rotary spray bored pile system；
Fig. 2 is the structural schematic diagram of serum preventer in Fig. 1；
Description of symbols: 1- spray head, 2- grout pipe, 3- retaining wall, 4- return pipe, 5- reservoir, 6- filter screen, 7- auxiliary
Grouting pump, the triple pipe fittings of 8-, 9- serum preventer, 9.1- cylinder sleeve, 9.2- leather bag, 9.3- oily liquids, 10- mud tube, 11-
Tracheae, 12- water pipe, 13- grouting pump, 14- air compressor, 15- high-pressure hydraulic pump, 16- combine blender, 17- valve, 18- pressure
Power meter.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
As Figure 1-Figure 2, a kind of triple pipe rotary spray bored pile system, including spray head 1, the spray head 1 and grouting
Pipe 2 connects, and 2 periphery of grout pipe is equipped with retaining wall 3, and 3 top of retaining wall is connect by return pipe 4 with reservoir 5, and described time
Filter screen 6 is equipped between flow tube 4 and reservoir 5, the reservoir 5 is connect with auxiliary grouting pump 7, and the grout pipe 2 passes through three
Weight pipe fitting 8 is connect with serum preventer 9, and triple pipe fittings 8 by mud tube 10, tracheae 11, water pipe 12 and fill respectively
Stock pump 13, air compressor 14, high-pressure hydraulic pump 15 connect, and the grouting pump 13 is set on joint blender 16, and passes through pipe
Road is connected with blender 16 is combined, and the joint blender 16 is connect by valve 17 and pipeline with auxiliary grouting pump 7.
The serum preventer 9 includes cylinder sleeve 9.1, and leather bag 9.2 is equipped with inside the cylinder sleeve 9.1, is contained in the leather bag 9.2
There is oily liquids 9.3,9.1 bottom of cylinder sleeve connects grout pipe 2, and top connects pressure gauge 18.
A kind of triple pipe rotary spray bored pile method, comprising the following steps:
Step 1) according to Normal practice, pilot hole is carried out using pilot hole machinery, when encountering rubble stratum or pebble layer etc.
It is likely to occur at collapsing and suspends, transfer steel pile casting retaining wall, again pilot hole, only can locally be placed in rubble stratum or pebble layer
Retaining wall makes drilling not collapse hole.
Step 2) pilot hole to hole depth is designed, removes drilling rod, and common pvc pipe is transferred to design hole depths, removes steel bushing
Cylinder, using pvc pipe as interim retaining wall.
Step 3) whirl spraying pile system is in place, mixing and stirring for mud is completed in joint blender, mud is led into grouting pump
In, and air compressor and high-pressure hydraulic pump are ready.
Step 4) grout pipe transferred into bottom hole, start water, the three pipe whirl spraying of gas and water mud, until rubble or cobble etc. are hardy
When layer, the pressure of mixture in grouting pump is monitored by pressure gauge, and the pressure for increasing air compressor and high-pressure hydraulic pump is adjusted,
So that it is generated high pressure impact force, realizes that cement slurry is mixed with the effective of lithosome within the scope of certain diameter around drilling, shape
At whirl spraying pile body, when grout pipe is promoted to sand or viscous soil horizon, by the grouting overpressure size of monitoring, adjusting is reduced
The pressure of air compressor and high-pressure hydraulic pump makes the reduction of its impact force, reaches and form an approximate phase with the pile body of lower part soil layer
Cylinder with diameter is whole.
It is above specific application example of the invention, there are other embodiments of the invention, all to use equivalent replacement
Or the technical solution that equivalent transformation is formed, it all falls within protection scope of the presently claimed invention.
Claims (3)
1. a kind of triple pipe rotary spray bored pile system, it is characterised in that: including spray head (1), the spray head (1) and grout pipe
(2) it connects, grout pipe (2) periphery is equipped with retaining wall (3), and retaining wall (3) top passes through return pipe (4) and reservoir (5)
Connection is equipped with filter screen (6) between the return pipe (4) and reservoir (5), and the reservoir (5) and auxiliary grouting pump (7) are even
It connects, the grout pipe (2) is connect by triple pipe fittings (8) with serum preventer (9), and triple pipe fittings (8) are led to respectively
It crosses mud tube (10), tracheae (11), water pipe (12) to connect with grouting pump (13), air compressor (14), high-pressure hydraulic pump (15), institute
Grouting pump (13) is stated to be set on joint blender (16), and by pipeline with to combine blender (16) connected, it is described combine stir
It mixes machine (16) and is connect by valve (17) and pipeline with auxiliary grouting pump (7).
2. triple pipe rotary spray bored pile system according to claim 1, it is characterised in that: the serum preventer
(9) include cylinder sleeve (9.1), be equipped with leather bag (9.2) inside the cylinder sleeve (9.1), fill oily liquids in the leather bag (9.2)
(9.3), cylinder sleeve (9.1) bottom connects grout pipe (2), and top connects pressure gauge (18).
3. a kind of triple pipe rotary spray bored pile method, it is characterised in that the following steps are included:
S1 carries out pilot hole using pilot hole machinery according to Normal practice；
S2, pilot hole remove drilling rod to hole depth is designed, and transfer common pvc pipe to design hole depths, steel bushing are removed, by pvc pipe
As interim retaining wall；
S3, whirl spraying pile system is in place, mixing and stirring for mud is completed in joint blender, mud is led in grouting pump, and will
Air compressor and high-pressure hydraulic pump are ready；
Grout pipe is transferred bottom hole, starts water, the three pipe whirl spraying of gas and water mud by S4, until leading to when the firm hard formations such as rubble or cobble
Excess pressure meter monitors the pressure of mixture in grouting pump；The pressure for increasing air compressor and high-pressure hydraulic pump is adjusted, its generation is made
High pressure impact force realizes that cement slurry is mixed with the effective of lithosome within the scope of certain diameter around drilling, forms rotary churning pile
Body, when grout pipe is promoted to sand or viscous soil horizon, by the grouting overpressure size of monitoring, adjusting reduces air compression
The pressure of machine and high-pressure hydraulic pump makes the reduction of its impact force, reaches and form an approximately uniform diameter with the pile body of lower part soil layer
It is cylindrical whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811435805.3A CN109403317A (en) | 2018-11-28 | 2018-11-28 | A kind of triple pipe rotary spray bored pile system and pile making method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811435805.3A CN109403317A (en) | 2018-11-28 | 2018-11-28 | A kind of triple pipe rotary spray bored pile system and pile making method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109403317A true CN109403317A (en) | 2019-03-01 |
Family
ID=65456069
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811435805.3A Pending CN109403317A (en) | 2018-11-28 | 2018-11-28 | A kind of triple pipe rotary spray bored pile system and pile making method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080214A (en) * | 2019-05-13 | 2019-08-02 | 上海智平基础工程有限公司 | A kind of construction method of oblique high-pressure rotary jet grouting pile |
| CN110409434A (en) * | 2019-06-25 | 2019-11-05 | 浙江省建工集团有限责任公司 | A kind of the high-pressure rotary jet grouting pile technique and its drill bit of combination pvc pipe |
| CN110984142A (en) * | 2019-07-25 | 2020-04-10 | 北京中润宝成工程技术有限公司 | Waste slurry recycling and circulating system for rotary spraying pile or stirring spraying pile |
| CN112921976A (en) * | 2021-04-13 | 2021-06-08 | 中国十九冶集团有限公司 | High-pressure jet grouting pile construction method for road foundation |
| CN114164825A (en) * | 2020-09-10 | 2022-03-11 | 山东大学 | High-pressure rotary jet grouting machine and application method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57172028A (en) * | 1981-04-15 | 1982-10-22 | Fudo Constr Co Ltd | Improvement work for soft ground |
| JPH0881950A (en) * | 1994-09-13 | 1996-03-26 | Yuji Kaneko | Ground improving device and ground improving method |
| JPH116142A (en) * | 1997-06-17 | 1999-01-12 | Yuji Kaneko | Soil improvement method |
| CN202869736U (en) * | 2012-11-01 | 2013-04-10 | 许春萌 | Manometer protection device |
| CN106320331A (en) * | 2016-09-23 | 2017-01-11 | 中交第航务工程局有限公司 | Construction method for penetrating block stone layer of pore-forming system of high-pressure jet grouting pile |
| KR101760218B1 (en) * | 2016-08-30 | 2017-07-20 | 전기표 | Jet drilling apparatus and method with vertical vibration and jet grouting apparatus and method with vertical vibration using the same |
| CN206736903U (en) * | 2017-03-31 | 2017-12-12 | 湖北华亚建设工程有限公司 | A kind of churning pilework |
| CN209308016U (en) * | 2018-11-28 | 2019-08-27 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of triple pipe rotary spray bored pile system |
-
2018
- 2018-11-28 CN CN201811435805.3A patent/CN109403317A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57172028A (en) * | 1981-04-15 | 1982-10-22 | Fudo Constr Co Ltd | Improvement work for soft ground |
| JPH0881950A (en) * | 1994-09-13 | 1996-03-26 | Yuji Kaneko | Ground improving device and ground improving method |
| JPH116142A (en) * | 1997-06-17 | 1999-01-12 | Yuji Kaneko | Soil improvement method |
| CN202869736U (en) * | 2012-11-01 | 2013-04-10 | 许春萌 | Manometer protection device |
| KR101760218B1 (en) * | 2016-08-30 | 2017-07-20 | 전기표 | Jet drilling apparatus and method with vertical vibration and jet grouting apparatus and method with vertical vibration using the same |
| CN106320331A (en) * | 2016-09-23 | 2017-01-11 | 中交第航务工程局有限公司 | Construction method for penetrating block stone layer of pore-forming system of high-pressure jet grouting pile |
| CN206736903U (en) * | 2017-03-31 | 2017-12-12 | 湖北华亚建设工程有限公司 | A kind of churning pilework |
| CN209308016U (en) * | 2018-11-28 | 2019-08-27 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of triple pipe rotary spray bored pile system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080214A (en) * | 2019-05-13 | 2019-08-02 | 上海智平基础工程有限公司 | A kind of construction method of oblique high-pressure rotary jet grouting pile |
| CN110409434A (en) * | 2019-06-25 | 2019-11-05 | 浙江省建工集团有限责任公司 | A kind of the high-pressure rotary jet grouting pile technique and its drill bit of combination pvc pipe |
| CN110984142A (en) * | 2019-07-25 | 2020-04-10 | 北京中润宝成工程技术有限公司 | Waste slurry recycling and circulating system for rotary spraying pile or stirring spraying pile |
| CN114164825A (en) * | 2020-09-10 | 2022-03-11 | 山东大学 | High-pressure rotary jet grouting machine and application method thereof |
| CN112921976A (en) * | 2021-04-13 | 2021-06-08 | 中国十九冶集团有限公司 | High-pressure jet grouting pile construction method for road foundation |
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