CN1265062C - Construction for making piles and tools - Google Patents
Construction for making piles and tools Download PDFInfo
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- CN1265062C CN1265062C CN 03133487 CN03133487A CN1265062C CN 1265062 C CN1265062 C CN 1265062C CN 03133487 CN03133487 CN 03133487 CN 03133487 A CN03133487 A CN 03133487A CN 1265062 C CN1265062 C CN 1265062C
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Abstract
The present invention relates to a construction method and a tool for forming piles. The construction method comprises the work processes for positioning a pile machine, forming a hole in a wall protective mode, forming an expanding head, sealing the hole, building a pile and pulling out a pipe. In the method, the hole in the wall protective mode for mixing a hard pipe with slurry to protect a wall is formed, i.e. the hard pipe and the slurry are mixed to protect the wall. If the pile hole is formed in the pile sinking capability of a device, the hard pipe is used for protecting the wall; if the pile hole is formed beyond the pile sinking capability of the device, the part of the pile hole, which is formed in the pile sinking capability of the device, is still in the mode of using the hard pipe to protect the wall, but when an outer pipe of a pile pipe is in a prefabricated wall protective mode, the outer pipe sinks to a designed depth, wherein the pile section of the pile hole, which is beyond the pile sinking capability of the device, is in a mode of using the slurry to protect the wall. Expanding heads can be formed at a steel pipe wall protective section, a slurry wall protective section and a bottom pile end part. The hole forming tool is composed of an outer pipe, an inner pipe and a pile head, wherein the outer wall side of the outer pipe is provided with a water outlet, the inner pipe which has the functions of water feeding and water discharging is arranged in the outer pipe, and the pile head is connected with the inner pipe. Compared with the existing method and tool, the method and the tool have the advantages of high quality ensuring rate of the pile body and the pile end, high bearing capacity and simple operation, and accord with the requirements of environment protection.
Description
Affiliated technical field
The present invention relates to a kind of job practices and instrument of civil engineering pile foundation, particularly about adopting the job practices and the instrument of static pressure, vibration force, impact force, the common pile of hammer force.
Background technology
At present, the job practices of pile foundation can be divided into non-soil compaction stake, the stake of part soil compaction and soil compaction stake, and wherein non-soil compaction stake is with way pore-formings such as boring, borehole, shovel holes; The stake of part soil compaction is to draw way pore-formings such as hole, punching, boring; The soil compaction stake is with way pile sinking such as static pressure, vibration, hammerings, though more than three kinds of job practicess obtained certain good effect by the extensive employing of builder, but non-soil compaction stake exists technology to be subjected to the restriction of geological conditions, be only applicable to argillic horizon more than the groundwater table as doing the operation pore-creating filling pile, silt, banket medium closely knit above sand, weathered rock formation; Hand excavated pile is when groundwater table is higher, particularly have when constructing in bigger high-compressibility mud of sand layer, sealing layer, the thickness of artesian water and the plastic flow mud matter soil layer, reliable measures and safety measure must be arranged, and borehole draws water and easily causes near surface settlement, house crack or inclination etc.; Drilling bucket is drilled to hole pouring pile and Bei Nuote castinplace pile, constructional difficulties when in soil layer artesian water being arranged; Drilled pile is very low for three Da Shi layers (cobble, jackstone, boulder), pore-forming efficiency.There are problems such as hole wall mud skin, all soil of stake become flexible, stake end loosened soil, sediment in such stake except that hand excavated pile, has influenced bearing capacity of pile foundation, and the folk prescription bearing capacity is lower; And the restriction of borehole diameter during owing to pore-forming, the folk prescription bearing capacity of hand excavated pile is not high yet.For the stake type of taking mud off, big, the contaminated environment of common retaining wall waste mud treating capacity.The construction plant that part stake machine cost is higher and need are bigger.Involve great expense as rotary pile-digging machine, Bei Nuote stake machine, be big machinery, big place need be arranged; It is larger that anti-circulation stake machine temporarily sets up.The stake of part soil compaction exists draws the link that hole, stake side and pile grouting have increased construction, and pile efficient reduces, and construction costs increases.Drawing the hole needs two complete equipments at least with doing enlarged footing, slip casting etc., has increased investment.When adopting impact holing, efficiency of construction is lower.For drilled pressure filling pile, the stake of boring pressure concrete injecting etc., all exist in the problem of rock-soil layer pore-forming difficulties such as thicker drifting sand layer, big particle diameter boulder bed.Part stake type pore-forming still needs mud off.Pile for prestressed pipe is because the pile follower degree of depth is restricted, and the surplus stake of clipping behind excavation of foundation pit is more, and waste is serious.The soil compaction stake exists the investment of the required construction equipment of pile for prestressed pipe greatly and comparatively heavy, and the pile sinking stake machine structure of Large-diameter Sinking Pipe castinplace pile is huge.Require the skirt piles center bigger to the spacing of existing building.For the complex carrier compaction pile etc., when adopting hammer piling, vibration is big, noise is bigger, and it is comparatively serious to disturb residents.Can produce earth heaving, can produce " soil compaction effect " neighboring buildings, pipeline.Pile driving pressure is subjected to certain limitation, and hard interbedded layer has certain difficulty in the middle of running through, and should not adopt or need careful usefulness in hard interlayer, in the more stratum of boulder and obstruction; When in hard interlayer, adopting this type, need draw the hole usually, increase construction link.And instrument adopts long screw auger and open tube as the pore-forming instrument more, when running into hardpans such as cobble, jackstone, boulder, then need change the pore-forming instrument, first-class as Churn drill, above instrument is in pore-forming, and hole soil is difficult for getting rid of, and neighboring buildings, underground utilities are produced squeezing action, draw the hole, do and enlarge first-class link, the more equipment of palpus outfit often, increase difficulty of construction, pile efficient is low, the construction costs height.
Summary of the invention
At above-mentioned pile base construction method and instrument weak point, the invention provides a kind of different size that is applicable to, difformity, pile foundation intensity height easily expands at the end, low public hazards, the efficient height, construction cost is low, adapts to multiple geological conditions, penetration power is strong, collateral resistance in pile driving process, and end resistance is little, pile sinking speed is fast, and control stake shape and retaining wall effect are strong, have and can ram, can bore, fetch earth, the job practices and the instrument of the pile of draining and control soil compaction degree.
The technical solution adopted for the present invention to solve the technical problems is to carry out a machine location, retaining wall pore-forming successively, form enlarged footing, sealing of hole, build stake, the tube drawing course of work.Adopting stereoplasm tube, mixing retaining wall is that stereoplasm tube adds the mud off mode and carries out the retaining wall pore-forming.The stereoplasm tube retaining wall is adopted as within the equipment pile setting capability time in the stake hole, and the pipeline sinking pile instrument of being made up of outer tube, interior pipe, pile crown during the retaining wall pore-forming carries out immersed tube by static pressure, vibration, impact, hammering, jetting.Stake pipe outer tube be steel pipe then inner and outer pipes sink down into projected depth, can by interior pipe soil taking hole forming promptly a stake subsoil body enter interior pipe by pile crown, each pile extension Guan Shijun mentions interior pipe, goes out the wherein soil body clearly, also can impact holing; Stake pipe outer tube be prefabricated bulkhead then outer tube sink down into than projected depth and lack 0.5～2 meter, interior pipe sinks down into projected depth; By interior pipe fetch earth, turn round, revolve dig, dash grab, impact, jetting pore-forming.The stake hole for the part of stake hole within the equipment pile setting capability, is still adopted the stereoplasm tube retaining wall as outside the equipment pile setting capability; But when stake pipe outer tube was prefabricated bulkhead, then outer tube sank down into the projected depth place.The stake hole surpasses the pile cutoff outside the equipment pile setting capability, adopts mud off, fetches earth, turns round, revolves and dig, dash and grab pore-forming by interior pipe.Can form enlarged footing in steel pipe retaining wall section, mud off section, position, stake end, bottom.When forming bottom stake end enlarged footing: be to pour into the expansion bed material to outer tube, this material is concrete or complex carrier, the complex carrier inserts is meant that mud content is not more than 10%, and content of organics is not more than 3% brickbat, broken concrete piece, rigid concrete, sand, rubble, cobble and slag, and its influx height is taken as 2～4 meters.Can adopt interior pipe to expand the end, after the hammer ram head was connected in promptly interior pipe in the interior pipe expansion end and steel were flat, tamp by static pressure, vibration, hammering mode at expansion bed material top; The section outer tube is fixing after promoting 0.7～2 meter during for steel pipe at the bottom of the stake hole, and interior pipe is up carried to putting down with outer tube etc., and inner and outer pipes one removes by static pressure, vibration, hammering mode and tamps again, till the enlarged footing area meets the requirements; Also can adopt to impact and expand at the end.As adopt the mixing retaining wall, and can adopt interior pipe to expand the end, after the hammer ram head was connected in promptly interior pipe in the interior pipe expansion end and steel were flat, tamp by static pressure, vibration, hammering mode at expansion bed material top, till the enlarged footing area meets the requirements; Also can adopt to impact and expand at the end.Material of body of a pile can be a steel bar concrete; Material of body of a pile can be that ground is handled material when adopting the stereoplasm tube retaining wall, and this material refers to cement-soil, sandstone, lime, dirt and slag.Section is that steel outer tube retaining wall and material of body of a pile are steel bar concrete when needing sealing of hole at the bottom of the stake hole, with the sealing material shutoff mouth of pipe, extracts underground water in the pipe out, in the time of can't shutoff, then carries out under water concrete and builds; Section is a prefabricated bulkhead and when mixing retaining wall at the bottom of the stake hole, not sealing of hole.Can pull out while shaking during tube drawing, also quiet pulling out continuously when outer tube is prefabricated bulkhead, can be retained in the soil.
The technical scheme that instrument adopted is, control stake shape and play in the outer tube of retaining wall effect and be provided with activity therein in pore forming process, work the interior pipe that rams pipe, drilling rod, dress soil container, supplying drainage effect, this pipe lower end is connected successively with joint, pile crown, the outer tube wall outside is provided with the water route, and is opened on the outside and bottom, and the bottom is provided with the point shovel, outer tube can be a prefabricated bulkhead, and its form is circular, oval, square, a kind of in the bar shaped, I shape, X type, Y type, T type; The inner pipe wall inboard is provided with the water route, is opened on inside wall form and outer tube coupling; The bottom that pile crown can be the band door is provided with the sharp short auger rod-type of taking out slag cartridge type, band door that shovels, the sharp formula of stake, chain wheel drill bit, flat interior hammer ram.
The invention has the beneficial effects as follows pile body and stake end quality height, single pile bearing capacity is strong, vibrate for a short time, noise is little, reduces surrounding building pipeline squeezing action, prevent earth heaving, construct pile foundation come-up, can alleviate the earthquake liquefaction performance to sand, penetration power is big, and it is wide to adapt to the geological conditions scope, simple to operate, speed of application is fast.The pile foundation pore-forming instrument of forming by outer tube, interior pipe, pile crown in addition, become the porosity height, can conveniently supply with draining, collateral resistance in the pile driving process, end resistance is little, penetration power is strong, and pile sinking speed is fast, can control a shape, retaining wall and soil compaction degree effectively, interior pipe can be used as and rams pipe, drilling rod, soil sampler, supplying drainage is used.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples
Fig. 1 is a tool construction principle schematic of the present invention,
Fig. 2 is the short sped structure principle schematic of pile crown among Fig. 1,
Fig. 3 is Fig. 1 middle external tube, interior pipe, catenation principle schematic diagram,
Fig. 4 is Fig. 1 middle external tube, interior pipe, pile crown catenation principle schematic diagram.
Among the figure: pipe 5 joints 6 pile crown bodies 7 points shovel on 8 central axiss 9 and manage water route 12 times revolving doors, 13 door-hinges, 14 minor axises, 15 helical blades, 16 male and female banjo fixing butt jointings, 17 flange sockets, 18 the ears of an ox or cow joints in the pipe water route outlet 11 in the revolving door 10 in 3 outer tube water routes, 1 outer tube, the 2 outer tube water routes outlet 4
The specific embodiment
Its working programme of this stake is a machine location, retaining wall pore-forming, forms enlarged footing, sealing of hole, builds stake, tube drawing.
Long within the equipment pile setting capability time as stake: will be by the outer tube that in pore forming process, plays control stake shape and retaining wall effect; Play inner tamping tube, drilling rod, dress soil container, the interior pipe of gutter effect; Play the pipeline sinking pile instrument that plays the pile crown composition that rams the effect of expansion hammer in control soil compaction degree, the reaming process and carry out immersed tube by static pressure, vibration, impact, hammering, jetting, revolution.Stake pipe outer tube be steel pipe then inner and outer pipes sink down into projected depth, a stake pipe outer tube be prefabricated bulkhead then outer tube sink down into than projected depth and lack 0.5～2 meter, generally get 1.2 meters, interior pipe sinks down into projected depth; Stake subsoil body enters interior pipe by pile crown, during each pile extension pipe, all mentions interior pipe, goes out the wherein soil body clearly, and under general geological conditions, pile crown is weak point auger hair style for taking out the slag cartridge type in the pan soil interlayer.Outside the equipment pile setting capability time,, adopt the stereoplasm tube retaining wall as the stake hole for the pile cutoff of stake hole within the equipment pile setting capability; The long pile cutoff that surpasses outside the equipment pile setting capability of stake adopts the mud off pore-forming.In whole pile cutoff,, all can adopt impact holing as three Da Shi layers.
When forming bottom stake end enlarged footing: be to pour into the expansion bed material to outer tube, this material is concrete or complex carrier inserts, and its influx height is taken as 2～4 meters, gets 3 meters usually.Can adopt interior pipe to expand the end, after the hammer ram head was connected in promptly interior pipe in the interior pipe expansion end and steel were flat, tamp by static pressure, vibration, hammering mode at expansion bed material top; But the section outer tube is fixing after promoting 0.7～2 meter during for steel pipe at the bottom of the stake hole, and interior pipe is up carried to flat with outer tube etc., and inner and outer pipes is tamped by static pressure, vibration, hammering mode more together, and the pipe expansion end in also can adopting is till the enlarged footing area meets the requirements.
During sealing of hole, the stake section of the long end is that steel outer tube retaining wall and material of body of a pile are steel bar concrete when needing sealing of hole, and with the sealing material shutoff mouth of pipe, method for blocking can drop in the pipe with concrete, clay to be tamped, and extracts underground water in the pipe out; In the time of can't shutoff, then carry out under water concrete and build; Stake section of the long end is a prefabricated bulkhead and when mixing retaining wall, not sealing of hole.
Fill material of body of a pile, the vibration pile.Extract mud out with round-robin method, pull out while shaking during tube drawing, also quiet pulling out continuously is when outer tube can be retained in the soil during for prefabricated bulkhead.Pipe 4 in its instrument is provided with in Fig. 1 middle external tube 1, its lower end is connected to joint 5, pile crown 6 successively.The outer tube 1 tube wall outside is provided with outer tube water route 2, and is opened on the outside and bottom, pipe water route outlet 3 outside saying, and the bottom is provided with the point shovel, and outer tube can not established the outer tube water route during for prefabricated bulkhead; In pipe 4 tube wall inboards be provided with water route 11, and be opened on the inboard say within pipe water route outlet 10; Pile crown 6 is a kind of in the short auger rod-type of taking out slag cartridge type, band door, the sharp formula of stake, chain wheel drill bit formula, flat interior hammer ram hair style of band door, wherein: band door take out the slag cartridge type, be to be provided with central axis 8 in the body of pile crown 6, by the last revolving door 9 that it supports, its bottom is provided with point shovel 7.
Short spiral: be to be provided with door-hinge 13 in the body of pile crown 6, coupled following revolving door 12, central part are provided with the minor axis 14 that studs with helical blade 15, and connected mode has three kinds: male and female banjo fixing butt jointing 16, flange socket 17, the ears of an ox or cow joint 18.
Claims (5)
1, a kind of job practices of pile, comprise a machine location, retaining wall pore-forming, form enlarged footing, sealing of hole, build stake, the tube drawing course of work, it is characterized in that adopting when a hole is within the equipment pile setting capability stereoplasm tube retaining wall pore-forming, the pipeline sinking pile instrument of being made up of outer tube, interior pipe, pile crown carries out immersed tube by static pressure, vibration, impact, hammering, jetting, by interior pipe soil taking hole forming or revolution, revolve and dig, dash and to grab pore-forming; The promptly interior pipe of interior pipe soil taking hole forming sinks down into projected depth, and a stake subsoil body enters interior pipe by pile crown, and pile extension Guan Shijun mentions interior pipe at every turn, goes out the wherein soil body clearly; The stake hole is adopted outside the equipment pile setting capability time and is mixed the retaining wall pore-forming, for the part of stake hole within the equipment pile setting capability, still adopt the stereoplasm tube retaining wall, but the stake hole surpasses the pile cutoff outside the equipment pile setting capability, adopt mud off, fetch earth, turn round, revolve and dig, dash and grab pore-forming by interior pipe; Stake position, end, bottom is to pour into the expansion bed material to outer tube when forming enlarged footing, and this material is concrete or complex carrier inserts; The complex carrier inserts is meant that mud content is not more than 10%, and content of organics is not more than 3% brickbat, broken concrete piece, rigid concrete, sand, rubble, cobble and slag, its influx height is taken as 2～4 meters, pipe expands the end in adopting, in pipe expand the end promptly in pipe with after hammer ram head in steel is flat is connected, tamp by static pressure, vibration, hammering mode at expansion bed material top; Or adopt to impact and expand at the end, till the enlarged footing area meets the requirements; Material of body of a pile is that steel bar concrete or ground are handled inserts, and the ground inserts refers to cement-soil, sandstone, lime, dirt and slag; Section is that steel outer tube retaining wall and material of body of a pile are steel bar concrete when needing sealing of hole at the bottom of the stake hole, with the sealing material shutoff mouth of pipe, extracts underground water in the pipe out, in the time of can't shutoff, then carry out under water concrete and build, section be a prefabricated bulkhead and when mixing retaining wall at the bottom of the stake hole, sealing of hole when outer tube is prefabricated bulkhead, is not retained in the soil.
The instrument that uses when 2, the described bore forming method of a kind of claim 1 king-pile hole is within the equipment pile setting capability is characterized in that being provided with in the instrument outer tube movable therein interior pipe, and interior pipe lower end is connected successively with joint, pile crown.
3, instrument according to claim 2, it is characterized in that the steel outer tube wall outside is provided with a plurality of water routes, and being opened on the outside and the bottom of outer tube wall respectively, outer tube is a kind of shape in the middle of circle, ellipse, square, bar shaped, I shape, X type, Y type, the T type.
4, instrument according to claim 2 is characterised in that said inner pipe wall inboard is provided with the water route, and is opened on inside wall.
5, instrument according to claim 2 is characterized in that pile crown is a kind of among the bottom of the band door short auger rod-type of taking out slag cartridge type, band door that is provided with the point shovel, the sharp formula of stake, chain wheel drill bit formula, the flat interior hammer ram hair style.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03133487 CN1265062C (en) | 2003-06-21 | 2003-06-21 | Construction for making piles and tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03133487 CN1265062C (en) | 2003-06-21 | 2003-06-21 | Construction for making piles and tools |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1462827A CN1462827A (en) | 2003-12-24 |
| CN1265062C true CN1265062C (en) | 2006-07-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03133487 Expired - Fee Related CN1265062C (en) | 2003-06-21 | 2003-06-21 | Construction for making piles and tools |
Country Status (1)
| Country | Link |
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| CN (1) | CN1265062C (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465384C (en) * | 2006-06-07 | 2009-03-04 | 区国雄 | Double-pipe type immersed tube filling pile |
| CN101158156B (en) * | 2006-06-30 | 2010-09-15 | 王国奋 | Bottom expanding and pile-forming method for pipe sinking prefabricated steel concrete pedestal pile |
| CN101161951B (en) * | 2006-06-30 | 2010-09-15 | 王国奋 | Bottom expanding and pile-forming method for pipe sinking prefabricated steel concrete pedestal pile |
| CN101713278B (en) * | 2009-11-19 | 2012-09-05 | 江苏扬建集团有限公司 | One-pile double-machine construction method for drilling pouring pile hole formation |
| CN102797262B (en) * | 2011-05-26 | 2016-08-03 | 常雷 | The construction treating methods of cast-in-situ triangular compound foundation pile |
| CN102605788A (en) * | 2012-04-01 | 2012-07-25 | 上海振中机械制造有限公司 | Double-tube-sinking and inner-tube-drawing bored cast-in-place pile construction method and application |
| CN103061332B (en) * | 2013-01-29 | 2015-01-14 | 新宇建设有限公司 | Integrally-arranged and externally-wrapped double-layered water discharging body and middle concrete combined pile and construction method |
| CN103321215B (en) * | 2013-05-15 | 2015-06-03 | 李胜南 | Construction technology of cast-in-situ concrete tubular pile applied to water area, as well as special hole-forming device of construction technology |
| DK2837743T3 (en) * | 2013-08-14 | 2016-02-29 | Bauer Spezialtiefbau | Method and apparatus for making a foundation element in the soil |
| CN103867200B (en) * | 2014-02-17 | 2016-06-15 | 河海大学 | Hole-forming device and using method in a kind of cohesiveless soil |
| CN104074458A (en) * | 2014-06-25 | 2014-10-01 | 中铁上海工程局集团有限公司 | Drilled pile graded casing drilling perforating method |
| CN104179455A (en) * | 2014-08-25 | 2014-12-03 | 江苏长城石油装备制造有限公司 | Pipe blockage prevention drill device |
| CN105256793B (en) * | 2015-09-14 | 2017-05-31 | 王警 | A kind of double-deck lower stake equipment |
| CN105464585B (en) * | 2015-12-31 | 2018-01-16 | 贺德新 | Double back rotary device and the rotary excavating extruding expanding drilling machine with the double back rotary device |
| CN106014262B (en) * | 2016-06-08 | 2018-06-29 | 叶晓明 | A kind of expanding method of the non-circular impact Counterboring apparatus of drilled pile |
| CN110644551B (en) * | 2019-08-21 | 2021-06-29 | 中国铁建重工集团股份有限公司 | Pile driver and construction method thereof |
| CN111021954B (en) * | 2019-11-18 | 2024-06-18 | 四川农业大学 | Novel anti-slide pile hole forming device and method thereof |
-
2003
- 2003-06-21 CN CN 03133487 patent/CN1265062C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1462827A (en) | 2003-12-24 |
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