CN1844588A - Section bar inserting and high-pressure rotary jetting method for forming pile with expanded plates in sink area - Google Patents
Section bar inserting and high-pressure rotary jetting method for forming pile with expanded plates in sink area Download PDFInfo
- Publication number
- CN1844588A CN1844588A CN 200610039028 CN200610039028A CN1844588A CN 1844588 A CN1844588 A CN 1844588A CN 200610039028 CN200610039028 CN 200610039028 CN 200610039028 A CN200610039028 A CN 200610039028A CN 1844588 A CN1844588 A CN 1844588A
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- expansion dish
- spray
- pile body
- pile
- pressure rotary
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000002689 soil Substances 0.000 claims abstract description 17
- 239000007921 spray Substances 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 238000005553 drilling Methods 0.000 claims description 10
- 239000004568 cement Substances 0.000 claims description 5
- 230000011218 segmentation Effects 0.000 claims description 3
- 238000007569 slipcasting Methods 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000002347 injection Methods 0.000 abstract 2
- 239000007924 injection Substances 0.000 abstract 2
- 241000826860 Trapezium Species 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 238000005065 mining Methods 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- 239000004927 clay Substances 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
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- Piles And Underground Anchors (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention discloses a method for molding the high-pressure rotational spray expansion post in sink area. Wherein, forming a trapezium expansion disc on the post formed by rotational spraying slurry injection according to the segment pressure or the injection time; inserting section steel as anti-drawing material into the post. The invention can increase the upright bearing ability and improve the horizontal bearing ability; especially at the interface of soil, it can eliminate the effect of horizontal displacement, with lower cost, short time, easy construction, lower soil occupied and saved land resource. The invention can be used to strengthen the foundation in large distortion condition, to reduce cost and improve economic benefit, with wider application.
Description
One, technical field
The present invention relates to a kind of subsidence area joint bar high-pressure rotary-spray expansion dish method for forming pile, be particularly useful for administering the reinforcing of existing bridge in subsidence area or building, also be applicable to the ground stabilization under the conventional soft clay area condition.
Two, background technology
Coal is the basis of industrial power, and the industrial fuel in the whole nation about 75%, 65% industrial chemicals rely on coal; Coal has become one of important exporting of China.Because a large amount of exploitations of coal resources affect to environment, especially to the destruction of land resources, surface structures and communal facilities, lithic drainage.No matter be the production technique that alleviates subsidence, comprise room and pillar mining, part exploitation, cut and fill and the exploitation of branch lamellar spacing etc., still common exploitation method all can cause the large tracts of land depression on the face of land.Along with highway in China, the development of railway construction, increasing bridge faces safe working problem under the bridge.At because mining or goaf " activation " cause the bridge that abutment sinks, at present, general both at home and abroad adopt to relocate avoid the countermeasure in Collapse by Mining district, take over the land for use again beyond in the subsidence area, bridge construction beam again, original bridge can only go out of use.The method occupies cultivated land many, and investment is big, and examination and approval work is loaded down with trivial details, and causes great inconvenience near urban residents productive life, is unfavorable for the mining area expanding economy.The soil is as a kind of non-renewable resources, and the status in national economy becomes increasingly conspicuous, and how the more efficient use soil reduces taking of ploughing, and becomes a problem that needs to be resolved hurrily.
Three, summary of the invention
In view of the deficiency that prior art exists, the purpose of this invention is to provide the forming method of the effective joint bar high-pressure rotary-spray expansion dish stake of a kind of consolidated subsoil.
The forming method of joint bar high-pressure rotary-spray expansion dish in subsidence area of the present invention stake, hole downwards with multiple drilling rod earlier, make boring reach the predetermined degree of depth, in the multiple drilling rod of pumpback, open bit nozzle then, bit nozzle with multiple drilling rod while rotating the spray cement paste, in the stratum, subsidence area, form pile body, on the basis of the pile body that rotary jet grouting forms, adopt pressurization or change injecting time to increase bit nozzle spray volume of cement paste in the unit interval according to soil property and form trapezoidal expansion dish, the segmentation pressurization is provided with trapezoidal expansion dish, after treating that slip casting is finished, in expansion dish pile body, insert the shaped steel that increases vertical bearing capacity and horizontal bearing capacity, the shaped steel that inserts in the expansion dish pile body can be used H shaped steel, also can use circular steel, the length of pile body determines according to geological conditions, and trapezoidal expansion dish should be arranged on bearing capacity, and soil layer or two soil layer intersections are to resist its relative horizontal movement preferably, and trapezoidal expansion dish can be provided with one or more according to the requirement of required expansion dish pile capacity.
The present invention is the forming method of a kind of joint bar subsidence area high-pressure rotary-spray expansion dish stake, the pile body that employing forms at the subsidence area rotary jet grouting is administered the reinforcing of existing bridge in subsidence area or building, the segmentation expansion dish in echelon that pressurizes on the pile body that rotary jet grouting forms, by setting up trapezoidal expansion dish, not only can increase its vertical bearing capacity and also can improve its horizontal bearing performance simultaneously, particularly at two-layer native intersection, not only can improve bearing capacity of single pile, the influence of elimination of level displacement, and adaptation minery differential settlement, the influence of large deformation of ground, its small investment, the duration is short, construction is simple, not only can reduce taking of ploughing, economize the land resource, and help the mining area expanding economy, be applicable to the reinforcing of ground under the large deformation of ground condition, its job practices is simple, and consolidated subsoil is effective, can significantly reduce cost, increase economic efficiency, have practicality widely.
Four, description of drawings
Fig. 1 is a subsidence area high-pressure rotary-spray expansion dish pile driving construction structural representation of the present invention.
Fig. 2 is a subsidence area joint bar high-pressure rotary-spray expansion dish forming pile structural representation of the present invention.
Among the figure: the multiple drilling rod of 1-, 2-drilling rod nozzle, 3-shaped steel, 4-pile body, the trapezoidal expansion dish of 5-.
Five, the specific embodiment
Below in conjunction with accompanying drawing one embodiment of the present of invention are further described:
Subsidence area joint bar high-pressure rotary-spray expansion dish method for forming pile of the present invention, earlier multiple drilling rod is bored 1 to desired depth, pile body 4 in the formation of subsidence area rotary jet grouting, on the pile body 4 that rotary jet grouting forms, adopt pressurization or change injecting time according to soil property, increase drilling rod nozzle 2 spray volume of cement paste in the unit interval and form trapezoidal expansion dish 5, trapezoidal expansion dish 5 can be provided with one or more (shown in Figure 1) according to the requirement of required expansion dish pile capacity, in pile body 4, insert H shaped steel 3 or tensile materials at last, increase its vertical bearing capacity and horizontal bearing performance thus, also can be applied to the ground stabilization under the conventional soft clay area condition simultaneously.The length of stake can determine that trapezoidal expansion dish 5 should be arranged on bearing capacity, and soil layer or two soil layer intersections are to resist its relative horizontal movement preferably according to geological conditions, and bearing capacity soil layer preferably is meant the soil layer that modulus of compressibility is higher; Two soil layers are meant clay and silt or sandy soil.
Claims (3)
1. the forming method of subsidence area joint bar high-pressure rotary-spray expansion dish stake, it is characterized in that: earlier with multiple drilling rod (1) boring downwards, make boring reach the predetermined degree of depth, in the multiple drilling rod of pumpback (1), open bit nozzle (2) then, bit nozzle (2) with multiple drilling rod (1) while rotating the spray cement paste, in the stratum, subsidence area, form pile body (4), on the basis of the pile body (4) that rotary jet grouting forms, adopt pressurization or change injecting time to increase bit nozzle (2) spray volume of cement paste in the unit interval according to soil property and form trapezoidal expansion dish (5), the segmentation trapezoidal expansion dish (5) that pressurizes, after treating that slip casting is finished, in expansion dish pile body (4), insert the shaped steel (3) that increases vertical bearing capacity and horizontal bearing capacity, the length of pile body (4) determines according to geological conditions, trapezoidal expansion dish (5) should be arranged on bearing capacity preferably soil layer or two soil layer intersections to resist its relative horizontal movement.
2. subsidence area joint bar high-pressure rotary-spray expansion dish method for forming pile according to claim 1, it is characterized in that: described trapezoidal expansion dish (5) can be provided with one or more according to the requirement of required expansion dish pile capacity.
3. subsidence area joint bar high-pressure rotary-spray expansion dish method for forming pile according to claim 1, it is characterized in that: the shaped steel (3) in the described insertion expansion dish pile body (4) can be used H shaped steel, also can use circular steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100390281A CN100485133C (en) | 2006-03-15 | 2006-03-15 | Section bar inserting and high-pressure rotary jetting method for forming pile with expanded plates in sink area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100390281A CN100485133C (en) | 2006-03-15 | 2006-03-15 | Section bar inserting and high-pressure rotary jetting method for forming pile with expanded plates in sink area |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1844588A true CN1844588A (en) | 2006-10-11 |
| CN100485133C CN100485133C (en) | 2009-05-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100390281A Expired - Fee Related CN100485133C (en) | 2006-03-15 | 2006-03-15 | Section bar inserting and high-pressure rotary jetting method for forming pile with expanded plates in sink area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100485133C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711123A (en) * | 2013-12-17 | 2014-04-09 | 上海岩土工程勘察设计研究院有限公司 | Bamboo joint type mortar pile and construction method thereof |
| CN104343111A (en) * | 2014-09-28 | 2015-02-11 | 山东科技大学 | Composite foundation for reinforcing thick sand soil layer by using node piles |
| CN105625417A (en) * | 2016-01-30 | 2016-06-01 | 周兆弟 | Piling machine variable-section piling control method and system |
| CN108221965A (en) * | 2018-01-18 | 2018-06-29 | 樊军让 | The branched disk filling pile construction method of concrete back-pressure rotation type |
| CN108330959A (en) * | 2018-01-30 | 2018-07-27 | 山东倍特力地基工程技术有限公司 | The spiral spray that spray expansion extruding built pile and its construction method and this method use, which is expanded, squeezes drilling machine |
| CN108385668A (en) * | 2018-05-24 | 2018-08-10 | 航天建筑设计研究院有限公司 | The manufacturing process of the construction tool and pile of pile and pile |
| CN111254923A (en) * | 2019-11-21 | 2020-06-09 | 浙江吉通地空建筑科技有限公司 | Micro-disturbance foundation reinforcing device and underground tunnel enclosure construction method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2312967Y (en) * | 1997-09-29 | 1999-04-07 | 靳宏湘 | Broaching-pile drilling machine |
| CN1243184A (en) * | 1998-07-27 | 2000-02-02 | 杨丽清 | Construction method of high-pressure rotary-jetting bottom-expanding pile |
| CN1208102A (en) * | 1998-07-31 | 1999-02-17 | 叶长生 | Deposited pile and its construction |
| CN1236146C (en) * | 2002-07-19 | 2006-01-11 | 王景军 | Method and apparatus for forming shaped pile by drilling, high-pressure letting to enlarge hole and pressure pouring of concrete |
-
2006
- 2006-03-15 CN CNB2006100390281A patent/CN100485133C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711123A (en) * | 2013-12-17 | 2014-04-09 | 上海岩土工程勘察设计研究院有限公司 | Bamboo joint type mortar pile and construction method thereof |
| CN103711123B (en) * | 2013-12-17 | 2016-01-27 | 上海岩土工程勘察设计研究院有限公司 | The construction method of bamboo joint type mortar pile |
| CN104343111A (en) * | 2014-09-28 | 2015-02-11 | 山东科技大学 | Composite foundation for reinforcing thick sand soil layer by using node piles |
| CN105625417A (en) * | 2016-01-30 | 2016-06-01 | 周兆弟 | Piling machine variable-section piling control method and system |
| CN105625417B (en) * | 2016-01-30 | 2017-06-23 | 周兆弟 | Piling machine variable cross-section piling control method and its system |
| CN108221965A (en) * | 2018-01-18 | 2018-06-29 | 樊军让 | The branched disk filling pile construction method of concrete back-pressure rotation type |
| CN108330959A (en) * | 2018-01-30 | 2018-07-27 | 山东倍特力地基工程技术有限公司 | The spiral spray that spray expansion extruding built pile and its construction method and this method use, which is expanded, squeezes drilling machine |
| WO2019148812A1 (en) * | 2018-01-30 | 2019-08-08 | 山东倍特力地基工程技术有限公司 | Jetting, expansion and extrusion combined pile, construction method thereof and spiral jetting, expansion and extrusion drilling rig used in method |
| CN108330959B (en) * | 2018-01-30 | 2019-10-11 | 山东倍特力地基工程技术有限公司 | The spiral spray that spray expansion extruding built pile and its construction method and this method use, which is expanded, squeezes drilling machine |
| US11299864B2 (en) | 2018-01-30 | 2022-04-12 | Shandong Bei Te Li Foundation Engineering Technology Co., Ltd | Jetting, expansion and extrusion combined pile, construction method thereof and spiral jetting, expansion and extrusion drilling rig used in method |
| CN108385668A (en) * | 2018-05-24 | 2018-08-10 | 航天建筑设计研究院有限公司 | The manufacturing process of the construction tool and pile of pile and pile |
| CN111254923A (en) * | 2019-11-21 | 2020-06-09 | 浙江吉通地空建筑科技有限公司 | Micro-disturbance foundation reinforcing device and underground tunnel enclosure construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100485133C (en) | 2009-05-06 |
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Granted publication date: 20090506 Termination date: 20120315 |