CN207904903U - Down-hole hammer grouting behind shaft or drift lining prefabricating composite pile - Google Patents
Down-hole hammer grouting behind shaft or drift lining prefabricating composite pile Download PDFInfo
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- CN207904903U CN207904903U CN201721664080.6U CN201721664080U CN207904903U CN 207904903 U CN207904903 U CN 207904903U CN 201721664080 U CN201721664080 U CN 201721664080U CN 207904903 U CN207904903 U CN 207904903U
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Abstract
A kind of down-hole hammer grouting behind shaft or drift lining prefabricating composite pile, technical solution are：Balanced support leg is arranged in the lower part surrounding of platform drilling machine, control room is set on rear side of the top of platform drilling machine, the upper front setting support stake bar of platform drilling machine, it supports the rear side of stake bar that two down-the-holes are set and impacts supporting rod, the lower part of down-the-hole impact supporting rod is connect with platform drilling machine, auxiliary support bar is arranged in the middle and lower part that down-the-hole impacts supporting rod, support the top setting balance suspending head of stake bar, it balances suspending head back lower and the hydraulic pressure pump machine assembly with oil pressure elevating bar is set, it balances suspending head lower front and prefabricated connecting rod is set, power head is arranged in the lower part of prefabricated connecting rod, drilling rod is arranged in power head lower part, the impactor with down-hole hammer is arranged in the lower part of drilling rod, drilling rod upper outside is equipped with high pressure airline a, high pressure airline a is connected by high pressure airline b in the air compressor machine of outside setting.The utility model efficiently solves the problems, such as that prefabricated pile insertion ragstone difficulty of construction is big, it is ensured that socket length improves bearing capacity of single pile, and can significantly improve inter-pile soil body intensity and the participation to carrying, meets different design requirements.
Description
Technical field
Piling technique field in constructing the present invention relates to building foundation, espespecially down-hole hammer grouting behind shaft or drift lining is prefabricated compound
Stake.
Background technology
In In The Low Mountain-hill Region, the uneven filler such as the discarded dregs of use, excavation massif spoir, miscellaneous fill backfill whole
Flat place；There is the place of weak mud, muck soil in riverine, coastal area；There is circle gravel, ovum on fluvial outwash terrace
The place of stone, erratic boulder layer；Shape cohesive soil is moulded there are soft modeling~stream, there are karrens in rock mass on the level rock of karst area
The place of the complex geologic conditions such as slot, solution cavity.Since the back fill course and soft layer of owing consolidation all have, intensity is low, compressibility
High, thickness changes the engineering characteristics of the random distributions such as engineering characteristic and karst area corrosion groove, solution cavity greatly, it is necessary to take
Corresponding measure improves its engineering mechanics performance, to meet the requirement of the bearing capacity needed for engineering construction.All kinds ofly
Base processing method and pile foundation construction engineering method have the respective scope of application and limitation.Such as use cement fly ash gravel pile
（CFG）, cement mixing method, high-pressure rotary jet grouting pile, rotary digging stake, the single pile-type such as Percussion Piles or prefabricated pile be difficult to meet skill simultaneously
Art is feasible, reliable in quality, economical rationality etc. requirement.And down-hole hammer grouting behind shaft or drift lining prefabricating composite pile can be realized, it is integrated
The advantages of respective single pile-type, realizes pile strength and stake week（End）The matched well of Bearing Capacity in Soil of Foundation Bed.
Invention content
It is mentioned above in the background art to solve the purpose of the present invention is to provide down-hole hammer grouting behind shaft or drift lining prefabricating composite pile
Problem.
To achieve the above object, the utility model provides the following technical solutions：Down-hole hammer grouting behind shaft or drift lining prefabricating composite pile is by diving
Drift, impactor, down-the-hole impact supporting rod, drilling rod, high pressure airline a, power head, air compressor machine, high pressure airline b, note
Starch pipeline, grouting pump, mud pit, Grouting Pipe, balance suspending head, prefabricated connecting rod, platform drilling machine, mobile crawler belt, control room, oil pressure
Elevating lever, support stake bar, oil pressure pump machine, balanced support leg composition；Balanced support leg is arranged using the lower part surrounding of platform drilling machine,
Control room is set on rear side of the top of platform drilling machine, and the upper front setting support stake bar of platform drilling machine is supported and set on rear side of stake bar
Two down-the-hole impact supporting rods are set, the lower part of down-the-hole impact supporting rod is connect with platform drilling machine, under down-the-hole impacts in supporting rod
Auxiliary support bar, the top setting balance suspending head of support stake bar, balance suspending head back lower setting band oil pressure elevating bar is arranged in portion
Hydraulic pressure pump machine assembly, prefabricated connecting rod is arranged in balance suspending head lower front, and power head, power is arranged in the lower part of prefabricated connecting rod
Drilling rod is arranged in head lower part, and the impactor with down-hole hammer is arranged in the lower part of drilling rod, and drilling rod upper outside is equipped with high pressure airline a,
High pressure airline a is connected by high pressure airline b in the air compressor machine of outside setting.
Mud pit is equipped with outside the platform drilling machine, grouting pump is arranged in the top of mud pit, and grouting pump passes through Grouting Pipe
Road is connected to Grouting Pipe.
The Driven Piles machine 23 is equipped with prefabricated pile monkey 22.
The principle of the invention is：The pressure-air that impactor of the down-hole hammer in drilling rod bottom provides（Air pressure is not less than
2.0MPa）Driving is lower to impact drilling and forming hole, and the wherein high-frequency vibration impact and the synergy of pressure-air of down-hole hammer also can be
It hammers into shape and generates " micro- gas explosion " effect in base space, destruction is generated to soil structures, is further strengthened to cohesive soil, silt and sand
Impact Fracture Resistance passes through vibration, gas explosion adjustment block stone position to cobble, block stone stratum.Then inject cement grout, silication slurry
The reinforcement materials such as liquid or lye are beaten prefabricated pile along pile center using Driven Piles machine before reinforcement material is non-condensing to reinforcing area
（Pressure）Enter to bottom hole, to form stiff composite pile.
The invention has the characteristics that：（1）Pile peripheral earth is reinforced, side friction is improved；（2）It is similar to when construction
Dry operation, environmental pollution are small；（3）Down-hole hammer impact holing, grouting behind shaft or drift lining are the non-construction technology that fetches earth, reduce pile spoir；（4）
Pile pile forms pile peripheral earth and squeezes, improved pile peripheral earth side friction again using hammering soil compaction construction；（5）Single pile bearing
Power is higher, higher than the driven cast-in-place pile or cast-in-situ bored pile of same diameter；（6）Construction speed is fast, and construction quality is easy to ensure, breaks
Stake accident is few, no concrete disintegration hidden danger；（8）Socket length is easy to ensure, effectively solves hard rock stratum pile foundation and enter rock hardly possible
The problem of；（9）Under the requirement of same bearing capacity of single pile, down-hole hammer grouting behind shaft or drift lining prefabricating composite pile cost is slightly lower, especially hard rock
Stratum, cost advantage become apparent from.
The beneficial effects of the invention are as follows：The high pressure air drives undershoot that impactor using down-hole hammer in drilling rod bottom provides
Drilling and forming hole is hit, the reinforcement materials such as injection cement grout, silication slurries or lye are to reinforcing area, before reinforcement material is non-condensing
Prefabricated pile is beaten along pile center using Driven Piles machine（Pressure）Enter to bottom hole, to form stiff composite pile；Suitable for complicated geological
It the advantages of cost-effective new pile-type of one kind in condition, it combines prefabricated pile and grouting process, can be according to different geology
Condition, superstructure require, reinforce the conditions such as purpose, targetedly, neatly adjust that the stake diameter of various stakes, stake is long, mixes ash
Amount, intensity etc., make composite pile give full play of the side friction of stake week weak soil, simultaneously effective solve prefabricated pile insertion hard
The big problem of rock difficulty of construction, it is ensured that socket length improves bearing capacity of single pile, and can significantly improve inter-pile soil body intensity and right
The participation of carrying meets different design requirements.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and detailed description.
Fig. 1 is the platform drilling machine schematic diagram of down-hole hammer grouting behind shaft or drift lining prefabricating composite pile；
Fig. 2 is the mud pit schematic diagram of down-hole hammer grouting behind shaft or drift lining prefabricating composite pile；
Fig. 3 is the Driven Piles machine schematic diagram of down-hole hammer grouting behind shaft or drift lining prefabricating composite pile.
In figure：1, down-hole hammer, 2, impactor, 3, down-the-hole impact supporting rod, 4, drilling rod, 5, high pressure airline a, 6, power
Head, 7, air compressor machine, 8, high pressure airline b, 9, grouting pipeline, 10, grouting pump, 11, mud pit, 12, Grouting Pipe, 13, balance
Suspending head, 14, prefabricated connecting rod, 15, platform drilling machine, 16, mobile crawler belt, 17, control room, 18, oil pressure elevating bar, 19, support stake
Bar, 20, hydraulic pressure pump machine assembly, 21, balanced support leg, 22, prefabricated pile monkey, 23 Driven Piles machines.
Specific implementation mode
Shown in attached drawing 1,2,3, down-hole hammer grouting behind shaft or drift lining prefabricating composite pile is by down-hole hammer 1, impactor 2, down-the-hole impact support
Bar 3, drilling rod 4, high pressure airline a5, power head 6, air compressor machine 7, high pressure airline b8, grouting pipeline 9, grouting pump 10, mud
Stock tank 11, Grouting Pipe 12, balance suspending head 13, prefabricated connecting rod 14, platform drilling machine 15, mobile crawler belt 16, control room 17, oil pressure liter
Bar 18, support stake bar 19, oil pressure pump machine 20, balanced support leg 21 is dropped to form；It is flat using the lower part surrounding setting of platform drilling machine 15
Weigh support leg 21, and control room 17, the upper front setting support stake bar of platform drilling machine 15 are arranged on rear side of the top of platform drilling machine 15
19, the rear side of support stake bar 19 is arranged two down-the-holes and impacts supporting rod 3, and down-the-hole impacts lower part and the platform drilling machine 15 of supporting rod 3
Connection, the middle and lower part that down-the-hole impacts supporting rod 3 are equipped with auxiliary support bar, and the top setting balance suspending head 13 of support stake bar 19 is put down
The hydraulic pressure pump machine assembly 20 with oil pressure elevating bar 18 is arranged in 13 back lower of suspending head that weighs, and balance 13 lower front of suspending head setting is prefabricated
Power head 6 is arranged in the lower part of connecting rod 14, prefabricated connecting rod 14, and drilling rod 4 is arranged in 6 lower part of power head, and band is arranged in the lower part of drilling rod 4
The impactor 2 of down-hole hammer 1,4 upper outside of drilling rod are equipped with high pressure airline a5, and high pressure airline a5 is by high pressure airline
B8 is connect with the air compressor machine 7 of outside setting；
15 outside of platform drilling machine is equipped with mud pit 11, and grouting pump 10, grouting pump 10 is arranged in the top of mud pit 11
It is connected to Grouting Pipe 12 by grouting pipeline 9.
The Driven Piles machine 23 is equipped with prefabricated pile monkey 22.
The pressure-air that impactor 2 of the down-hole hammer 1 in 4 bottom of drilling rod provides（Air pressure is not less than 2.0MPa）
Driving is lower to impact drilling and forming hole, and the high-frequency vibration impact and the synergy of pressure-air of wherein down-hole hammer 1 also can be empty at hammer bottom
Interior generation " micro- gas explosion " effect generates destruction to soil structures, further strengthens the impact cutting to cohesive soil, silt and sand
Bad ability passes through vibration, gas explosion adjustment block stone position to cobble, block stone stratum.Then inject cement grout, silication slurries or alkali
The reinforcement materials such as liquid to reinforcing area, before reinforcement material is non-condensing using Driven Piles machine 23 by prefabricated pile monkey 22 along pile center
It beats（Pressure）Enter to bottom hole, to form stiff composite pile.
The above, embodiment is only that the preferred embodiment of the present invention is described, not to the present invention's
Range is defined, under the premise of not departing from the spirit of the technology of the present invention, skill of this field engineers and technicians to the present invention
The various modifications and improvement that art scheme is made should all be fallen into the protection domain of claims of the present invention determination.
Claims (3)
1. down-hole hammer grouting behind shaft or drift lining prefabricating composite pile, it is characterized in that：By down-hole hammer, impactor, down-the-hole impact supporting rod, drilling rod, height
Press air pipe line a, power head, air compressor machine, high pressure airline b, grouting pipeline, grouting pump, mud pit, Grouting Pipe, balance crane
Head, prefabricated connecting rod, platform drilling machine, mobile crawler belt, control room, oil pressure elevating bar, support stake bar, oil pressure pump machine, balanced support
Leg forms；Balanced support leg is arranged in the lower part surrounding of platform drilling machine, and control room, platform drilling machine is arranged on rear side of the top of platform drilling machine
Upper front setting support stake bar, the rear side of support stake bar is arranged two down-the-holes and impacts supporting rods, and down-the-hole impacts supporting rod
Lower part is connect with platform drilling machine, and auxiliary support bar is arranged in the middle and lower part that down-the-hole impacts supporting rod, and the top setting of support stake bar is flat
Weigh suspending head, and the hydraulic pressure pump machine assembly with oil pressure elevating bar is arranged in balance suspending head back lower, and balance suspending head lower front setting is pre-
Power head is arranged in the lower part of connecting rod processed, prefabricated connecting rod, and drilling rod, the lower part setting band down-hole hammer of drilling rod is arranged in power head lower part
Impactor, drilling rod upper outside be equipped with high pressure airline a, high pressure airline a by high pressure airline b in outside be arranged
Air compressor machine connection.
2. down-hole hammer grouting behind shaft or drift lining prefabricating composite pile according to claim 1, it is characterized in that：Mud is equipped with outside platform drilling machine
Grouting pump is arranged in the top in pond, mud pit, and grouting pump is connected to by grouting pipeline with Grouting Pipe.
3. down-hole hammer grouting behind shaft or drift lining prefabricating composite pile according to claim 1, it is characterized in that：Driven Piles machine is equipped with prefabricated pile
Hammer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721664080.6U CN207904903U (en) | 2017-12-04 | 2017-12-04 | Down-hole hammer grouting behind shaft or drift lining prefabricating composite pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721664080.6U CN207904903U (en) | 2017-12-04 | 2017-12-04 | Down-hole hammer grouting behind shaft or drift lining prefabricating composite pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207904903U true CN207904903U (en) | 2018-09-25 |
Family
ID=63571269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721664080.6U Expired - Fee Related CN207904903U (en) | 2017-12-04 | 2017-12-04 | Down-hole hammer grouting behind shaft or drift lining prefabricating composite pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207904903U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058439A (en) * | 2019-12-23 | 2020-04-24 | 青岛森建基础工程有限公司 | Construction method of immersed tube rock-socketed cast-in-place pile |
| CN113550303A (en) * | 2021-07-28 | 2021-10-26 | 建材桂林地质工程勘察院有限公司 | Pile forming method for down-the-hole impact high-pressure jet grouting composite pile |
| CN115419060A (en) * | 2022-07-28 | 2022-12-02 | 中交第三航务工程局有限公司 | Air-entrapping auxiliary construction method for onshore gravel pile |
| CN117780254A (en) * | 2024-01-04 | 2024-03-29 | 建研地基基础工程有限责任公司 | Application method of spinning torsion type composite pile construction comprehensive device under ultra-low clearance |
-
2017
- 2017-12-04 CN CN201721664080.6U patent/CN207904903U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058439A (en) * | 2019-12-23 | 2020-04-24 | 青岛森建基础工程有限公司 | Construction method of immersed tube rock-socketed cast-in-place pile |
| CN111058439B (en) * | 2019-12-23 | 2022-03-08 | 青岛森建基础工程有限公司 | Construction method of immersed tube rock-socketed cast-in-place pile |
| CN113550303A (en) * | 2021-07-28 | 2021-10-26 | 建材桂林地质工程勘察院有限公司 | Pile forming method for down-the-hole impact high-pressure jet grouting composite pile |
| CN115419060A (en) * | 2022-07-28 | 2022-12-02 | 中交第三航务工程局有限公司 | Air-entrapping auxiliary construction method for onshore gravel pile |
| CN117780254A (en) * | 2024-01-04 | 2024-03-29 | 建研地基基础工程有限责任公司 | Application method of spinning torsion type composite pile construction comprehensive device under ultra-low clearance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180925 Termination date: 20191204 |