CN102644267A - Hydraulic plastic drainage board piling machine and working method thereof - Google Patents
Hydraulic plastic drainage board piling machine and working method thereof Download PDFInfo
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- CN102644267A CN102644267A CN2012101064590A CN201210106459A CN102644267A CN 102644267 A CN102644267 A CN 102644267A CN 2012101064590 A CN2012101064590 A CN 2012101064590A CN 201210106459 A CN201210106459 A CN 201210106459A CN 102644267 A CN102644267 A CN 102644267A
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Abstract
The invention discloses a hydraulic plastic drainage board piling machine and a working method thereof. The piling machine consists of a moving device and a rack main body, wherein the rack main body is fixed on the moving device; the moving device consists of a backdigger; the backdigger comprises a lower walking body, an upper revolution body, a bucket arm cylinder and a movable arm; the rack main body consists of a steel truss, a hydraulic motor, two transmission chain wheel systems and a steel sleeve; the transmission chain wheel system consists of a driving wheel, a driven wheel and a transmission chain; the hydraulic motor is arranged at the lower end of the steel truss; the driving wheel is arranged at the lower end of the steel truss; the driven wheel is arranged at the upper end of the steel truss; the transmission chain is arranged on the driving wheel and the driven wheel; the hydraulic motor is connected with the driving wheel; and the steel sleeve is vertically welded at the middle of the steel truss and connected with the transmission chain. The piling machine disclosed by the invention is convenient to move and has high piling efficiency and stability.
Description
Technical field
The present invention relates to a kind of pile driver, particularly a kind of fluid pressure type plastic draining board pile driver and method of work thereof.
Background technology
Port Zhuhai and Macao bridge is the Channel Engineering large-scale over strait that connects the tunnel-Dao-bridge cluster in Hong Kong, Zhuhai, Macao, is the ingredient and the key engineering of crossing over lonely foreign marine site of Delta of the Pearl River area loop wire in the national freeway net planning; The traffic cluster engineering over strait that port Zhuhai and Macao bridge is made up of tunnel, island, bridge, one of engineering that be that technology is the most complicated on the Chinese transportation construction history, environmental requirement is the highest, construction requirements and standard is the highest; The tunnel engineering construction of Zhuhai and Macao bridge island, port is in the busy section of Zhujiang River shipping, and its design and construction difficulty is worldwide leading.
The precipitation union piling prepressing is mainly adopted in island inner region treatment of soft foundation, utilizes the precipitation well to reduce the water level of backfill medium coarse sand, carries out preloading, and the preloading material utilizes backfill sand exactly; Be backfilled in the island-the 6.0m absolute altitude after, place cleaning, and precipitation forms dry application work industry condition to-7.0m; Carry out plastic draining board and set, plastic draining board adopts former raw material D template, arranged in squares; Spacing 1.1m, plastic draining board top mark height-6.0m, end absolute altitude-35.0m arrives-46.0m.
Generally all use stride vibrating type plastic draining board pile driver when having engineering piling now, stride vibrating type plastic draining board pile driver penetrates plastic draining board earlier when work from steel sleeve; Temporary fixed in the steel sleeve bottom with the plate boots; Under the vibration of top vibrating hammer, steel sleeve and plastic draining board are inserted into projected depth, pull out steel sleeve on then; Interim plate boots and steel sleeve come off, and plastic draining board is then stayed in the soil layer.
It is big that stride vibrating type plastic draining board pile driver has the equipment projected area, and center of gravity is more stable, and is relatively low to the requirement for bearing capacity of the scope of operation; Vibrating hammer sets advantage such as the compliance of various soil layers is better.
Stride vibrating type plastic draining board pile driver also has equipment and moves very inconvenience, can only move at the vertical, horizontal both direction; It is low that vibrating hammer sets steel sleeve efficient; Because the hoist engine power of equipment configuration is little, after being inserted into dark soil layer (this engineering is inserted as 40m the most deeply), pull out than shortcomings such as difficulties on the steel sleeve.
Summary of the invention
The technical problem that the present invention will solve provides a kind of conveniently moving, high, the stable strong a kind of fluid pressure type plastic draining board pile driver of piling efficient.
For achieving the above object, technical scheme of the present invention is following:
A kind of fluid pressure type plastic draining board pile driver, said pile driver is made up of mobile device and frame main body, and said frame main body is fixed on the mobile device; Said mobile device is made up of backacter, and said backacter comprises lower running body, top revolving body, bucket arm cylinder and swing arm, and said frame main body is made up of steel truss, hydraulic motor, two drive sprocket systems and steel sleeve; Said drive sprocket system is made up of driving wheel, driven pulley and driving chain; Said hydraulic motor is placed in the lower end of steel truss; Said driving wheel is placed in the lower end of steel truss; Said driven pulley is placed in the upper end of steel truss, and said driving chain is placed on driving wheel and the driven pulley, and said hydraulic motor is connected with driving wheel; Said steel sleeve vertically is welded on the middle part of steel truss, and said steel sleeve is connected with driving chain.
Preferably, said steel truss is welded to form by two vertical rectangle steel pipes and many horizontal rectangular steel pipes and oblique rectangular steel pipe.
Preferably, the height of said frame main body is 43m.
Preferably, the rear side of said steel truss is provided with triangle support frame.
Preferably, said triangle support frame is formed by the rectangular steel pipe welding.
Preferably, the single ultimate tension of said driving chain is 55.50KN.
Preferably, the cross section of said steel sleeve is a prismatic.
A kind of method of work of fluid pressure type plastic draining board pile driver, the step of said this method of work is following:
(1) at first penetrates plastic draining board, and pull out from the bottom from the steel sleeve top;
(2) measure setting-out, emit the design attitude of plastic draining board, and marked;
(3) lower running body and the top revolving body through backacter moves the plastic draining board pile driver, makes steel sleeve aim at the layout board position, and with interim plate boots plastic draining board and steel sleeve fixed;
(4) primer fluid pressure motor just changes motor, slotting steel sleeve under the alignment sheets position, and insert when getting to design end absolute altitude and stop;
(5) backward rotation hydraulic motor, on pull out steel sleeve;
(6) steel sleeve is extracted, and cuts off plastic draining board.
Through technique scheme, the invention has the beneficial effects as follows:
Conveniently moving of the present invention can move in any direction, and its stability is strong, and piling efficient is high, easy to use.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a frame main body structural representation of the present invention;
Fig. 3 is a front view of the present invention;
Fig. 4 is a left view of the present invention;
Fig. 5 stability status sketch map 1 of the present invention when not considering wind load;
Fig. 6 stability status sketch map 2 of the present invention when not considering wind load;
Fig. 7 is for receiving the unfavorable stress sketch map under the wind load dorsad under the strong breeze off working state;
Fig. 8 receives the unfavorable stress sketch map under the side direction wind load under the strong breeze duty;
Fig. 9 is for receiving the unfavorable stress sketch map under the wind load dorsad under the fresh gale off working state;
Figure 10 receives the unfavorable stress sketch map under the side direction wind load under the fresh gale duty.
The numeral corresponding component title represented among the figure with letter:
10, frame main body 11, steel truss 12, hydraulic motor 13a, driving wheel 13b, driven pulley 13c, driving chain 14, steel sleeve 20, lower running body 30, top revolving body 40, bucket arm cylinder 50, swing arm 60, triangle support frame
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with concrete diagram, further set forth the present invention.
Referring to illustrated in figures 1 and 2, the present invention's a kind of fluid pressure type plastic draining board pile driver and method of work thereof, said pile driver is made up of mobile device and frame main body 10, and said frame main body 10 is fixed on the mobile device; Said mobile device is made up of backacter; Said backacter comprises lower running body 20, top revolving body 30, bucket arm cylinder 40 and swing arm 50, and said frame main body 10 is made up of steel truss 11, hydraulic motor 12, two drive sprocket systems and steel sleeve 14; Said drive sprocket system is made up of driving wheel 13a, driven pulley 13b and driving chain 13c; Said hydraulic motor 12 is placed in the lower end of steel truss 11; Said driving wheel 13a is placed in the lower end of steel truss 11; Said driven pulley 13b is placed in the upper end of steel truss 11, and said driving chain 13c is placed on driving wheel 13a and the driven pulley 13b, and said hydraulic motor 12 is connected with driving wheel 13a; Said steel sleeve 14 vertically is welded on the middle part of steel truss 11, and said steel sleeve 14 is connected with driving chain 13c.
It is SX510 hydraulic motor 12 that the present invention is provided with two models, and it is welded on the lower end of steel truss 11.
Because of the friction in the figure layer continuously of when construction steel sleeve 14, more easy to wear, so steel sleeve 14 material selection high strength steels, cross section is flat prismatic shape, to reduce cross sectional area, increases pressure, and is convenient to the spacing of on frame main body 10 soldering sleeve.
Mobile device of the present invention adopts Xiao Song PC650 type backacter to reequip, and has removed the dipper and the scraper bowl of former backacter, the backacter deadweight W1=68.03t after the repacking; Its center of gravity is positioned on the vertical shaft axis; Crawler belt and ground contact length D=4.5m, backacter height G=5.585m, the wide C=0.61m of digging machine crawler belt; Backacter overall width H=4.005m, crawler belt side direction overall width E=3.91m; Be installed in the frame main body height L=43m on the digging machine swing arm, preceding wide M=0.73m, the wide N=0.5m of side, frame main body weight W 2=11t, the most preceding point of distance of centre of gravity digging machine crawler belt ground connection is apart from K=3m.
The operating principle of fluid pressure type plastic draining board pile driver of the present invention is following:
At first plastic draining board is penetrated from prismatic steel sleeve top, pull out certain length from the steel sleeve bottom again, be fixed on the steel sleeve with interim plate boots, pile driver moves, locatees; Make steel sleeve aim at the plastic draining board design attitude, the primer fluid pressure motor drives the driving wheel forward rotation (to realize that the drop-down direction of steel sleeve is for just turning to; On to draw steel sleeve be in the other direction), and pulling force is delivered on the steel sleeve through driving chain, steel sleeve is driven into design end absolute altitude; Hydraulic motor stops forward rotation, opens counter-rotation, through drawing steel sleeve on the driving chain; Interim plate boots and steel sleeve come off, and plastic draining board is stayed in the soil under the extruding of soil layer; When the mud face is extracted in the steel sleeve bottom, cut off plastic draining board, realize setting of a plastic draining board.
Below for the stability analysis of fluid pressure type plastic draining board pile driver of the present invention
1. Checking Ground Bearing Capacity
Mould and be the backfill medium coarse sand with applying the workshop; According to western man-made island construction experience; After the precipitation leveling, the actual carrying capacity in place is 178.9KPa, in non-construction period; Pile driver gross weight W=W1+W2=68.03+11=79.03t=79.03 * 9.8=774.494KN, equipment and contact area of ground A=4.5 * 0.61 * 2=5.49m
2
Equipment is to geostatic pressure P=W/A=774.494/5.49=141.074KPa＜178.9KPa, so bearing capacity of foundation soil satisfies the equipment requirement of marching into the arena.
During the row of moulding sets, equipment will receive counter-force upwards, and pressure over the ground will diminish, and be favo(u)red state, not calculate here.
2. the stabilization of equipment performance checking computations when not considering wind load
(1) state one
The situation of state one is attached shown in 5 like figure, and its tipping point is like mark among the figure;
Its tipping point is like mark among the figure; Stabilizing moment M=W1 * D/2=68.03 * 4.5/2=153.067tm, overturning moment M '=W2 * K=11 * 3=33tm, according to " loading code for design of building structures " (GB0009-2001); The permanent load partial safety factor gets 1.35; 1.35 * M '=1.35 * 33=44.55＜M then, so at state once, structure is stable.
(2) state two
The situation of state two is attached shown in 6 like figure, and its tipping point is like mark among the figure;
Its tipping point is like mark among the figure; Stabilizing moment M=W1 * E/2=68.03 * 3.91/2=133tm, overturning moment M '=W2 * (K+D/2-E/2)=11 * (3+4.5/2-3.91/2)=36.245tm, according to " loading code for design of building structures " (GB0009-2001); The permanent load partial safety factor gets 1.35; 1.35 * M '=1.35 * 36.245=48.931＜M then is so state two times, structure also is stable.
3. the stable checking computations of equipment under the strong breeze state
Wind speed (v) and blast (w) relational expression do
The maximum wind velocity of strong breeze is v=13.8m/s, gets blast w=0.117KN/m for people's following formula
2
(1) the least favorable state is considered two kinds of situation under the wind load, and first kind of situation is the situation of the wind comes from dorsad that under off working state, meets with, and its stressing conditions attaches shown in 7 like figure;
At this moment, stabilizing moment is M=W1 * D/2=153.067tm, overturning moment M1 '=W2 * K=11 * 3=33tm that the deadweight of permanent load frame produces;
Overturning moment M2 '=(W * H * G that the variable load wind load produces
2/ 2)/9.8+ (W * 0.75 * M * L
2/ 2)/9.8=(0.117 * 4.005 * 5.585
2/ 2)/9.8+ (0.117 * 0.75 * 0.73 * 43
2/ 2)/9.8=6.132tm
0.75 is the void coefficient of frame in the following formula;
According to " loading code for design of building structures " (GB0009-2001); The permanent load partial safety factor gets 1.35; The variable load partial safety factor gets 1.4; 1.35 * M1 '+1.4 * M2 '=1.35 * 33+1.4 * 6.132=53.135tm＜stabilizing moment M is then arranged, explain that pile frame is stable under the situation that meets with strong breeze dorsad.
(2) second kinds of unfavoured states are to meet with the side direction situation of the wind comes from working order down, and its stressing conditions attaches shown in 8 like figure;
Among the figure, ground was in the face of the counter-force (frictional resistance that sleeve pipe need overcome) of frame when W3 was the plate construction, and it calculates as follows:
During plate, the side friction Hi=that sleeve pipe receives (N * hi * L)/5, in the formula, Hi is the frictional resistances that i layer local products are given birth to, N is the standard blow number of i layer soil, hi is an i layer soil thickness, L be plate sleeve pipe girth (=30cm);
With the construction of cylinder district is example, moulds the socket plate and need penetrate four big layer soil altogether:
First floor is a medium coarse sand, and bed thickness h1=20.5m (+2.5～-18.0) is without the medium coarse sand N=10 of overcompaction processing, then H1=12.3t;
The second layer is a mud, bed thickness h2=5.55m (18.0～-23.55), N=1.8, then H2=0.599t;
The 3rd layer is clay, bed thickness h3=3.16m (23.55～-26.71), N=13.6, then H3=2.579t;
The 4th layer is mucky soil, bed thickness h4=12.29m (26.71～-39.0), N=4.4, then H4=3.245t;
The cylinder district construction row of moulding, total frictional resistance that sleeve pipe bears is:
W3＝12.3+0.599+2.579+3.245＝18.723t。
The stabilizing moment M=of equipment (W1+W2) * (E/2)=(68.03+11) * (3.91/2)=154.503tm under this state;
Overturning moment is wind load and the counter-force generation of ground in the face of frame, M '=(W * D * G
2/ 2)/9.8+ (W * 0.75 * N * L
2/ 2)/9.8+W3 * E/2=0.838+4.139+36.603=41.580tm;
1.4M '=1.4 * 41.580=58.212＜stabilizing moment M;
It is thus clear that the equipment under this state also is stable.
In sum, under the strong breeze load, equipment possesses the execution conditions of stability and safety fully.
4. the stable checking computations of equipment under the fresh gale state
Computational process under the fresh gale state can be fully with reference to the computational process of strong breeze, and pilot process slightly omits.
The maximum wind velocity of fresh gale is v=20.7m/s, blast w=0.263KN/m
2
The least favorable state is considered two kinds of situation under the wind load, and first kind of situation is the situation of the wind comes from dorsad that under off working state, meets with, and its stressing conditions attaches shown in 9 like figure;
At this moment, stabilizing moment is M=W1 * D/2=153.067tm, overturning moment M1 '=W2 * K=11 * 3=33tm that the deadweight of permanent load frame produces;
Overturning moment M2 '=(W * H * G that the variable load wind load produces
2/ 2)/9.8+ (W * 0.75 * M * L
2/ 2)/9.8=(0.263 * 4.005 * 5.585
2/ 2)/9.8+ (0.263 * 0.75 * 0.73 * 43
2/ 2)/9.8=15.260tm;
0.75 is the void coefficient of frame in the following formula;
According to " loading code for design of building structures " (GB0009-2001); The permanent load partial safety factor gets 1.35; The variable load partial safety factor gets 1.4; 1.35 * M1 '+1.4 * M2 '=1.35 * 33+1.4 * 15.26=65.914tm＜stabilizing moment M is then arranged, explain that pile frame is stable meeting with under the situation of fresh gale dorsad.
(2) second kinds of unfavoured states are to meet with the side direction situation of the wind comes from working order down, and its stressing conditions is shown in figure 10;
W3＝18.723t；
The stabilizing moment M=of equipment (W1+W2) * (E/2)=(68.03+11) * (3.91/2)=154.503tm under this state;
Overturning moment is wind load and the counter-force generation of ground in the face of frame, M '=(W * D * G
2/ 2)/9.8+ (W * 0.75 * N * L
2/ 2)/9.8+W3 * E/2=0.838+4.139+36.603=46.745tm;
1.4M '=1.4 * 46.745=65.443＜stabilizing moment M;
It is thus clear that the equipment under this state also is stable.
In sum, under the fresh gale load, equipment also possesses the execution conditions of stability and safety fully.In order to ensure construction safety, when wind-force surpasses 8 grades, frame will be set level suspension of works.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the manual just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (8)
1. fluid pressure type plastic draining board pile driver, it is characterized in that: said pile driver is made up of mobile device and frame main body, and said frame main body is fixed on the mobile device; Said mobile device is made up of backacter, and said backacter comprises lower running body, top revolving body, bucket arm cylinder and swing arm, and said frame main body is made up of steel truss, hydraulic motor, two drive sprocket systems and steel sleeve; Said drive sprocket system is made up of driving wheel, driven pulley and driving chain; Said hydraulic motor is placed in the lower end of steel truss; Said driving wheel is placed in the lower end of steel truss; Said driven pulley is placed in the upper end of steel truss, and said driving chain is placed on driving wheel and the driven pulley, and said hydraulic motor is connected with driving wheel; Said steel sleeve vertically is welded on the middle part of steel truss, and said steel sleeve is connected with driving chain.
2. a kind of fluid pressure type plastic draining board pile driver according to claim 1 is characterized in that: said steel truss is welded to form by two vertical rectangle steel pipes and many horizontal rectangular steel pipes and oblique rectangular steel pipe.
3. a kind of fluid pressure type plastic draining board pile driver according to claim 1, it is characterized in that: the height of said frame main body is 43m.
4. a kind of fluid pressure type plastic draining board pile driver according to claim 1 and 2, it is characterized in that: the rear side of said steel truss is provided with triangle support frame.
5. a kind of fluid pressure type plastic draining board pile driver according to claim 4 is characterized in that: said triangle support frame is formed by the rectangular steel pipe welding.
6. a kind of fluid pressure type plastic draining board pile driver according to claim 1, it is characterized in that: the single ultimate tension of said driving chain is 55.50KN.
7. a kind of fluid pressure type plastic draining board pile driver according to claim 1, it is characterized in that: the cross section of said steel sleeve is a prismatic.
8. the method for work of a fluid pressure type plastic draining board pile driver is characterized in that, the step of said this method of work is following:
(1) at first penetrates plastic draining board, and pull out from the bottom from the steel sleeve top;
(2) measure setting-out, emit the design attitude of plastic draining board, and marked;
(3) lower running body and the top revolving body through backacter moves the plastic draining board pile driver, makes steel sleeve aim at the layout board position, and with interim plate boots plastic draining board and steel sleeve fixed;
(4) primer fluid pressure motor just changes motor, slotting steel sleeve under the alignment sheets position, and insert when getting to design end absolute altitude and stop;
(5) backward rotation hydraulic motor, on pull out steel sleeve;
(6) steel sleeve is extracted, and cuts off plastic draining board.
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Cited By (2)
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| CN104594332A (en) * | 2015-01-09 | 2015-05-06 | 张巧文 | Flashboard machines and machine frames thereof |
| CN104613144A (en) * | 2015-01-09 | 2015-05-13 | 张巧文 | Spile machine and chain transmission system thereof |
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| US20090196691A1 (en) * | 2008-02-01 | 2009-08-06 | June Construction Co., Ltd | Drain board installing device without anchor plate |
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| CN101476317A (en) * | 2009-01-11 | 2009-07-08 | 中国水产广州建港工程公司 | Mud surface curing process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594332A (en) * | 2015-01-09 | 2015-05-06 | 张巧文 | Flashboard machines and machine frames thereof |
| CN104613144A (en) * | 2015-01-09 | 2015-05-13 | 张巧文 | Spile machine and chain transmission system thereof |
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| CN102644267B (en) | 2015-07-29 |
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Effective date of registration: 20160922 Address after: 200032 Xuhui District, Pingjiang Road, No. 139, Patentee after: China Construction Third Engineering Division Co., Ltd. Patentee after: China Communications Third Navigational Bureau 2nd Engineering Co., Ltd Address before: 200122 No. 132 Pu circuit, Shanghai, Pudong New Area Patentee before: China Communications Third Navigational Bureau 2nd Engineering Co., Ltd |