CN1066902A - High efficient dry soil removing bored pile piling method and device - Google Patents
High efficient dry soil removing bored pile piling method and device Download PDFInfo
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- CN1066902A CN1066902A CN 92104699 CN92104699A CN1066902A CN 1066902 A CN1066902 A CN 1066902A CN 92104699 CN92104699 CN 92104699 CN 92104699 A CN92104699 A CN 92104699A CN 1066902 A CN1066902 A CN 1066902A
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Abstract
High efficient dry soil removing bored pile piling method and device sink to external mold pipe and drawing out soil equipment in the soil simultaneously, carry out the segmentation of segmentation spreading and fetch earth; Spreading device uniform many groups releasable connection on mould pipe circumference that this realizes this method has the expansion spacing when promoting between every joint, make Lifting Modules Guan Shike reduce the static friction force of pipe week soil; Half was articulated and connected about drawing out soil equipment was divided into soil sample barrel, even if remove to connect the soil of toppling over extraction by preformed hole, the soil sample barrel lower end is equipped with the resistance cutter and is suitable for the dish-shaped portable plate mechanism of the unidirectional switching in mobile saturated soft soil district.The present invention can reduce to promote resistance, and the soil extracting efficiency height has solved the difficulty that deep hole fetches earth.
Description
The present invention relates to high rebuild (structure) of civil construction project and build the thing pile foundation at deep soft soil layer dry extracting soil large-section in-situ concrete pile piling method and device.
The pile foundation of highrise building, high heavy factory building and structure generally adopts major diameter to account for hole pouring pile now, account for the hole process will be with the mud off of certain weight proportion, therefore the ground mud pit must be arranged and account for mud circulation facility in the hole, and in time adjust the proportion of mud in the mud pit.When accounting for the hole to projected depth, must carry out hole clearly, make at the bottom of the hole sediment clearly till the engine request, in the hole, insert reinforcing cage then and insert the conduit of irritating concrete, concrete extrudes mud in the hole by conduit, the limit is irritated the concrete limit and is extracted the concrete conduit, and conduit remains the certain depth that inserts concrete, and until concrete mud all being extruded is pile.There is following defective in this piling method: the easy contaminated environment of 1. mud conditioning difficulty, especially municipal construction; 2. easy-clear is unclean for pile bottom sediment, the bearing capacity of influence stake; 3. its difficult quality control of underwater casting concrete.Adopt the construction of the dried soil basketing method of a complete set of Guan Zhankong, can avoid above-mentioned defective, but it is little to account for the hole amount of fetching earth that fetches earth once in sinking to soil in the external mold pipe, and whenever getting once soil must load and unload once, efficient is extremely low, and the difficulty of extracting drawing out soil equipment behind the pile is very big, so engineering is used seldom.
State-of-the-art in the world at present pile-driving machine such as Mitsubishi MT130 account for hole stake machine, adopt hydraulic pressure to rock immersed tube, but the soil body that enters in the pipe adopts the interior grab bucket of pipe that soil is taken out, and once seldom there is the low shortcoming of work efficiency in the amount of fetching earth then, as cooperate the scalable long-spiral drilling machine that accounts for bar in pipe, to fetch earth to improve work efficiency, but flexible scope is less, and the certain depth that fetches earth in pipe just is done for, and is only applicable to stub and middle stub, just can not be suitable for for middle long stake and long stake, and the facility costliness.
UK Patent Application GB2043755A stake accounts for improving one's methods of hole and equipment is to sink to the external mold pipe earlier with vibratory drilling method, the soil body enters body, and then in inserting off-centre, the internal vibration of external mold pipe manages, flap valve switch and core baffle plate by interior pipe bottom, the soil body of pipe in entering is closed under its deadweight effect, block core, the block of pipe back flap valve switch moves in promoting, the core baffle plate is opened outside pipe thereupon, core is along with the whereabouts, this soil basketing method and device are owing to the external mold pipe and the interior pipe that fetches earth do not sink to simultaneously, because the pipe uplift force was big in the mould resistance of external mold inside pipe wall made, soil extracting efficiency is low, and power consumption is high, its pipe that fetches earth is pipe in eccentric, get the spoir body by flap valve switch and core baffle plate, the soil body of pipe is difficult for taking out in therefore entering, and needs by judder its liquefaction to be poured out, as enter in the pipe to cohesive soil, then more baffle out.Besides the structure of core baffle plate spherical cambered surface is when contacting with the soil body, produces the extruding force of opening direction, can close automatically so be difficult to imagination during pipe in promoting.Therefore not only drawing out soil equipment is undesirable, and the spreading of the long stake external mold pipe of constructing is not had clear and definite measure.
Task of the present invention be to overcome defective of the prior art and provide a kind of efficiently, cast in place pile piling method and for realizing the necessary special equipment of piling method of the present invention easily, this special equipment comprises segmentation mould pipe spreading device that can reduce the lifting resistance and the dried drawing out soil equipment that can improve work efficiency, reduce cost.
The essence of cast in place pile piling method of the present invention is to sink to the drawing out soil equipment in external mold pipe and the pipe in the soil simultaneously, the soil body enters drawing out soil equipment, then the drawing out soil equipment that fills with the soil body in the pipe is proposed to incline to, the drawing out soil equipment that to remove the soil body again inserts in the external mold pipe, external mold pipe and drawing out soil equipment behind the spreading sink to lower floor's soil body once more, the same taking-up soil body, repeat above-mentioned action successively and reach projected depth, after treating to take out drawing out soil equipment for the last time, insert reinforcing cage and pour into concrete, propose external mold pipe pile at last.
The spreading device of realizing the external mold pipe of above-mentioned piling method is about to the external mold pipe and is divided into more piece segmentation mould pipe and forms, and is linked to each other by many groups of removable linkages between the adjacent mould pipe, has certain flexible distance between per two joint mould pipes.Many group linkages are releasable connections, this linkage is by welding upper and lower reinforcement stirrup to upper and lower mould pipe, and the upper and lower junction plate that welding can be pegged graft mutually and is fastenedly connected by bolt assembly on upper and lower reinforcement stirrup, because the elongated slot structure on the junction plate has certain flexible skidding distance when the mould pipe is promoted, and makes the frictional resistance of the whole mould pipe and the soil body be converted into the dynamic friction resistance by static friction force.
The drawing out soil equipment of realizing above-mentioned piling method is about to soil sample barrel and is designed to half on the left side of two semi-barrel shapes and right half, left and right half junction inwall is equipped with many group linkworks and operation preformed hole vertically, can remove connector by preformed hole, the soil in the soil sample barrel is poured out fast.This soil sample barrel is connected with connecting rod by many groups releasable connecting mechanism uniform on the circumference, and is connected with the stake machine through the bar that fetches earth.The bottom of soil sample barrel is fixed with strengthens hoop and circular, hoop, and its inwall is equipped with resistance cutter uniform on the circumference, and it can not only make it enter cylindrical shell the soil block chopping, and stops soil block to come off when proposing cylindrical shell.Utilize the butterfly portable plate mechanism that is fixed on the unidirectional switching in the resistance cutter notch under soil body deadweight effect, can close automatically for mobile saturated soft soil matter area and reach the purpose that prevents soil erosion.
Spreading device and drawing out soil equipment are the necessary conditions that realizes that segmentation spreading and segmentation are fetched earth for the bored pile piling method provides the equipment assurance.
Cast in place pile piling method of the present invention and device thereof are owing to adopt external mold pipe and drawing out soil equipment to sink in the soil simultaneously, make when promoting the external mold pipe, reduce the static friction force of pipe week soil, besides the external mold interface tube has certain expansion spacing, therefore when promoting, the static friction force of pipe Zhou Tuti has become the dynamic friction resistance, and total lifting resistance is reduced greatly.The spreading device of external mold pipe and drawing out soil equipment have solved the pile frame that the super long pile construction need not be too high, guarantee job site safety, improve soil extracting efficiency, have solved the dried difficulty that fetches earth of deep hole, have reduced the cost that fetches earth.
Description of drawings.
Fig. 1 is the concrete process flow chart of cast in place pile piling method of the present invention.
Fig. 2 is external mold pipe and drawing out soil equipment while immersed tube procedure relation figure.
Fig. 3 is an external mold pipe segmentation spreading structural representation of the present invention.
Fig. 4 is the state diagram when throwing off of upper and lower mould pipe.
Fig. 5 is the drawing out soil equipment structural representation.
Fig. 6 is the A-A scheme I sectional view (left and right plate U-lag is in tube) of Fig. 5.
Fig. 7 is C-C scheme I ' sectional view of Fig. 5.
Fig. 8 is the A-A scheme II sectional view (left and right plate U-lag is outside tube) of Fig. 5.
Fig. 9 is the C-C scheme II sectional view of Fig. 5.
Figure 10 is the E-E sectional view of Fig. 5.
Figure 11 is the G-G sectional view of Figure 10.
Figure 12 loads onto the butterfly portable plate structural representation of unidirectional switching for resistance cutter notch.
Figure 13 is piece number 27 butterfly portable plate mechanism stereograms among Figure 12.
Below will be further elaborated by above-mentioned accompanying drawing embodiment.
The concrete operation division of high efficient dry soil removing bored pile piling method (referring to Fig. 1-2) is as follows:
A. behind stake bit clear miscellaneous fill that the external mold pipe is in place, drawing out soil equipment inserts in the external mold pipe;
B. drawing out soil equipment is inserted in the external mold pipe and is finished;
C. external mold pipe and drawing out soil equipment sink in the soil simultaneously, and the soil body enters drawing out soil equipment;
When d. proposing drawing out soil equipment the soil body is taken out and sheds the soil body;
E. drawing out soil equipment is inserted in the external mold pipe again;
F. with spreading device spreading external mold pipe and drawing out soil equipment;
G. external mold pipe and drawing out soil equipment sink to lower floor's soil layer simultaneously, and the soil body of lower floor enters drawing out soil equipment again;
H. repeat operation d and propose drawing out soil equipment, soil body taking-up is shed;
I. repeat successively the soil body in the external mold pipe is all taken out;
J. in the external mold pipe, insert reinforcing cage and pour into concrete;
K. propose external mold pipe and dismounting and go up joint external mold pipe, carry out repeatedly the external mold pipe is removed by joint, and all propose soil layer to the external mold pipe;
L. pile.
When external mold pipe and drawing out soil equipment sink in the soil simultaneously, can static pressure, also can vibrate can also hammering.
For realizing the external mold pipe spreading device (Fig. 3-4) of above-mentioned piling method, on adjacent upper and lower mould pipe (1), (2), weld upper and lower reinforcement stirrup (5), (6) respectively, this stirrup can be ring-type or watt shape, go up the tabular upper junction plate (7) of welding at last reinforcement stirrup (5), there is elongated slot (10) structure its lower end.Strengthen stirrup (6) down and go up welding two lower connecting plates parallel to each other (8), its spacing is greater than the thickness of upper junction plate (7), upper and lower junction plate (7), (8) bolt assembly (9) releasable connection that the back is made up of bolt, nut, packing ring of pegging graft.
The spreading linkage of upper and lower mould pipe (1), (2) is uniform 4-6 group on circumference, make every group of stressed equalization, the selection of group number is decided on the diameter of mould pipe, the joint number of mould pipe is decided deeply on stake, connect lengthening by joint during construction, remove by joint during lifting, by vibrating hammer be connected with a machine finish heavy, pull out task.
Separate the back all soil of stake and enter in the pipe in order to prevent upper and lower mould pipe (1), (2), the extension of going up reinforcement stirrup (5) on the patrix pipe (1) must can be sealed throw-off distances, and throw-off distances equals elongated slot (10) length, thus when design go up strengthen stirrup (5) stretch out the distance that patrix pipe (1) goes to the bottom must be greater than elongated slot (10) length.
For the drawing out soil equipment (seeing Fig. 2 .5-13) of the realizing above-mentioned piling method bar (11) that will fetch earth links to each other with the stake machine, the bar extensible fetches earth, decide on a hole depth, the bar (11) that fetches earth is by connecting rod (3) and soil sample barrel (4) releasable connection, this bindiny mechanism's (see figure 5) has two semiorbicular top boards (12) obvolvent to be welded on left and right half upper end, be welded with junction plate (13) on the top board (12), junction plate is formed by two.The bottom of connecting rod (3) welding plate (14), plate (14) and junction plate (13) back of pegging graft forms releasable connection by bolt assembly (9), this bindiny mechanism with on the circumference uniform 4 groups be advisable.
Soil sample barrel (4) is by half on the left side of the semi-barrel shape of two symmetries, right half composition, on a left side, right half junction inwall is equipped with 3 groups of linkworks vertically, this linkwork has two kinds of schemes, the linkwork of scheme 1 (seeing Fig. 5 .6.7) is by being welded on a left side, left side on right half inwall, right panel (15), (16) grafting is formed by connecting with screw assembly (9) and U-shaped clamp (17) mutually, mating holes during for the ease of connection, a left side, right panel (15), (16) connecting hole is processed into the U-lag of opening (18), and the U-lag mouth therefore must be with U-shaped clamp (17) set bolt in order to avoid deviate from before connection in tube.
The linkwork of scheme II (seeing Fig. 5 .8.9) is pegged graft mutually by left and right plate (15), (16) on half inwall about being welded on equally and is formed by connecting the U-lag (18) of left and right plate (15), (16) outside tube with being hinged on bolt group (20) on the hinged point of left plate (15) (21).Bolt group (20) can outwards pull open around hinged point (21), and soil sample barrel (4) will open.
Scheme I and scheme II be applied in any combination mutually, can also be own with own applied in any combination, and the bolt assembly of only removing or pulling out on one side when just falling soil gets final product.The preformed hole of being opened on left and right half (19) is exactly to remove and pull out bolt assembly (9) or (20) and design.
The outside, bottom of soil sample barrel (4) is being welded and is being strengthened hoop (23) and circular, hoop (22) (seeing Figure 10 .11), and strengthening hoop (23) is the nozzle intensity of strengthening soil sample barrel (4).The effect of circular, hoop (22) is to strengthen the distance of soil sample barrel (4) and external mold pipe, prevents that earth from entering in the external mold pipe.
The bottom inwall of soil sample barrel (4) is equipped with on the circumference uniform 4 resistance cutter (24) (seeing Figure 10 .1112), so that shred soil block and soil block do not come off when promoting, for mobile saturated soft soil matter area, utilize the notch (25) and connecting hole (26) structure (seeing Figure 11) of resistance cutter (24), also need load onto the butterfly portable plate mechanism (27) of unidirectional switching, this portable plate mechanism (seeing Figure 12 .13) comprises the plugboard (30) that can insert resistance cutter (24) notch (25), welding two blocks of parallel straight plates (32) that can be connected on the plugboard (30) with resistance cutter (24) connecting hole (26), a left side, right butterfly portable plate (29), (31) hinged with plugboard (30) rocking arm, the downside of portable plate is welded with support (28), like this, in the process of fetching earth, a left side, right portable plate (29), (31) just in tube, rotate, the portable plate that finishes of fetching earth launches under the earth action of gravity, because the support (28) of downside is subjected to resistance cutter (24) and stops, portable plate can only be expanded to horizontal level, and mobile saturated soft soil is raised up.This portable plate mechanism (27) is provided with 4 pairs on circumference, launch the back and constitute a round table surface.
Bolt assembly (9), (20) are made up of bolt, packing ring, nut.
After the utility model soil sample barrel (4) rises to ground, remove or pull out bolt assembly (9) or (20) by preformed hole (19), left and right half of soil sample barrel (4) can be opened and shed the soil of being got.
Claims (10)
1, a kind of high efficient dry soil removing bored pile piling method, sink in the soil with external mold pipe and drawing out soil equipment, take out the soil body, promote then and fill with the drawing out soil equipment of the soil body and shed the soil body, insert reinforcing cage and pour into concrete, propose external mold pipe pile, it is characterized in that sinking in the soil simultaneously behind external mold pipe and the drawing out soil equipment suit, carry out the segmentation spreading by the long requirement of stake in the process of fetching earth, segmentation is fetched earth, and its work progress comprises following operation:
A. behind stake bit clear miscellaneous fill that the external mold pipe is in place, drawing out soil equipment inserts in the external mold pipe;
B. drawing out soil equipment is inserted in the external mold pipe and is finished;
C. external mold pipe and drawing out soil equipment sink in the soil simultaneously, and the soil body enters drawing out soil equipment;
When d. proposing drawing out soil equipment the soil body is taken out and sheds the soil body;
E. drawing out soil equipment is inserted in the external mold pipe again;
F. with spreading device spreading external mold pipe and drawing out soil equipment;
G. external mold pipe and drawing out soil equipment sink to lower floor's soil layer simultaneously, and lower floor's soil body enters drawing out soil equipment again;
H. repeat operation d and propose drawing out soil equipment, soil body taking-up is shed;
I. repeat successively the soil body in the external mold pipe is all taken out;
J. in the external mold pipe, insert reinforcing cage and pour into concrete;
K. propose external mold pipe dismounting and go up joint external mold pipe, carry out repeatedly the external mold pipe is removed by joint, and all propose soil layer to the external mold pipe;
L. pile.
2, piling method as claimed in claim 1, when it is characterized in that external mold pipe and drawing out soil equipment sink in the soil, can static pressure, also can vibrate, can also thump.
3, a kind of external mold pipe spreading device that uses the described high efficient dry soil removing bored pile piling of claim 1 method, it is characterized in that described external mold pipe is made up of more piece, link to each other by many groups of removable linkages between the adjacent mould pipe, have certain expansion spacing between per two joint mould pipes.
4, spreading device as claimed in claim 3, it is characterized in that described linkage is welding upper and lower reinforcement stirrup (5), (6) respectively on upper and lower mould pipe (1), (2), on upper and lower reinforcement stirrup (5), (6), welding plug-in upper and lower junction plate (7), (8), upper junction plate (7) has the elongated slot (10) of mould pipe expansion spacing, lower connecting plate (8) is made up of two blocks of parallel plates, apart from the thickness greater than upper junction plate (7), upper and lower junction plate (7), (8) connect by bolt assembly (9) between plate and the plate.
5,, it is characterized in that external mold pipe connection uniform 4-6 group on circumference as claim 3 or 4 described spreading devices.
6, a kind of drawing out soil equipment that uses the described high efficient dry soil removing bored pile piling of claim 1 method, link to each other with the stake machine, the same connecting rod of the bar that fetches earth (11) (3) of extensible is fixedly connected, connecting rod (3) is connected with soil sample barrel (4) by many groups of uniform on the circumference removable mechanisms, it is characterized in that described soil sample barrel is made up of half on the left side of two semi-barrel shapes and right half, a left side, the inwall of right half junction is equipped with many group linkworks and operation preformed hole (19) vertically, the bottom of soil sample barrel (4) is fixed with strengthens hoop (23) and circular, hoop (22), and its inwall is equipped with resistance cutter (24) uniform on the circumference.
7, drawing out soil equipment as claimed in claim 6, it is characterized in that described removable mechanism has two semiorbicular top boards (12) obvolvent to be fixed on left and right half upper end, fixing junction plate (13) on the top board (12), the bottom of connecting rod (3) is fixed with plate (14), and plate (14) is connected by bolt assembly (9) with junction plate (13).
8, as claim 6 or 7 described drawing out soil equipment, it is characterized in that connecting left and right half linkwork and be formed by connecting by bolt assembly (9) and U-shaped clamp (17) by the left and right plate (15) that is fixed on left and right half inwall, (16) mutual pegging graft, the U-lag (18) of left and right plate (15), (16) is in tube.
9, as claim 6 or 7 described drawing out soil equipment, it is characterized in that connecting left and right half linkwork and pegged graft mutually by the left and right plate (15) that is fixed on left and right half inwall, (16) that the bolt group (20) with hinged point (21) is formed by connecting on the left plate (15) by being hinged on, the U-lag (18) of left and right plate (15), (16) is outside tube.
10, drawing out soil equipment as claimed in claim 6, it is characterized in that notch (25) and connecting hole (26) are arranged on the resistance cutter (24), the butterfly portable plate mechanism (27) of unidirectional switching is housed in the notch (25), this mechanism comprises the plugboard (30) that inserts notch (25), fixing two blocks of parallel straight plates (32) that can link to each other on the plugboard (30) with connecting hole (26), left and right portable plate (29), (31) and plugboard (30) are hinged, and the downside of portable plate is fixed with support (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92104699 CN1066902A (en) | 1992-06-13 | 1992-06-13 | High efficient dry soil removing bored pile piling method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92104699 CN1066902A (en) | 1992-06-13 | 1992-06-13 | High efficient dry soil removing bored pile piling method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1066902A true CN1066902A (en) | 1992-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92104699 Pending CN1066902A (en) | 1992-06-13 | 1992-06-13 | High efficient dry soil removing bored pile piling method and device |
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| CN (1) | CN1066902A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320215C (en) * | 2004-04-23 | 2007-06-06 | 贵阳铝镁设计研究院 | Method for making foundation piles in high embankment region |
| CN100434597C (en) * | 2006-08-25 | 2008-11-19 | 中机工程勘察设计研究院 | Construction method of immersed tube club-footed bored concrete pile |
| CN103276729A (en) * | 2013-06-03 | 2013-09-04 | 浙江金筑交通建设有限公司 | Moving steel casing and cast-in-place pile construction method using same |
| CN105401606A (en) * | 2015-12-14 | 2016-03-16 | 神翼航空器科技（天津）有限公司 | Deep drawing pipe type inclination correcting method and deep drawing device |
| CN105464154A (en) * | 2015-12-14 | 2016-04-06 | 神翼航空器科技（天津）有限公司 | Construction method of deep digging pipe |
| CN110485426A (en) * | 2019-08-30 | 2019-11-22 | 宁波易和桩基工程技术开发有限公司 | Drawing out soil equipment |
-
1992
- 1992-06-13 CN CN 92104699 patent/CN1066902A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320215C (en) * | 2004-04-23 | 2007-06-06 | 贵阳铝镁设计研究院 | Method for making foundation piles in high embankment region |
| CN100434597C (en) * | 2006-08-25 | 2008-11-19 | 中机工程勘察设计研究院 | Construction method of immersed tube club-footed bored concrete pile |
| CN103276729A (en) * | 2013-06-03 | 2013-09-04 | 浙江金筑交通建设有限公司 | Moving steel casing and cast-in-place pile construction method using same |
| CN103276729B (en) * | 2013-06-03 | 2016-02-24 | 浙江金筑交通建设有限公司 | A kind of movable steel casing and adopt this steel pile casting to carry out cast-in-place pile construction method |
| CN105401606A (en) * | 2015-12-14 | 2016-03-16 | 神翼航空器科技（天津）有限公司 | Deep drawing pipe type inclination correcting method and deep drawing device |
| CN105464154A (en) * | 2015-12-14 | 2016-04-06 | 神翼航空器科技（天津）有限公司 | Construction method of deep digging pipe |
| CN110485426A (en) * | 2019-08-30 | 2019-11-22 | 宁波易和桩基工程技术开发有限公司 | Drawing out soil equipment |
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