CN103161158B - Method of reinforcing soft soil layers using layering mixing pile machine - Google Patents
Method of reinforcing soft soil layers using layering mixing pile machine Download PDFInfo
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- CN103161158B CN103161158B CN201310094101.5A CN201310094101A CN103161158B CN 103161158 B CN103161158 B CN 103161158B CN 201310094101 A CN201310094101 A CN 201310094101A CN 103161158 B CN103161158 B CN 103161158B
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Abstract
The invention discloses a method of reinforcing soft soil layers using a layering mixing pile machine. The method comprises the following steps: step 10), the layering mixing pile machine is in installed; step 20), a mixing head is controlled to the soft soil layers to be reinforced; step 30), the mixing head is spread; and step 40), cement soil mixing piles are prepared through the following steps: firstly, the soft soil layers are cut; an outer rod rotary speed controller drives an inner rod, an outer rod and the mixing head to rotate together, and meanwhile a slurry-feeding pump is started, cement paste or cement powder is conveyed to a cavity between the outer rod and the inner rod, then the soft soil and the cement paste or the cement powder is mixed through mixing blades, and cement soil is formed, and meanwhile, the outer rod rotary speed controller and the outer rod are matched to drive the mixing head to run upwards, and therefore the cement soil mixing piles are formed. The method of reinforcing the soft soil layers using the layering mixing pile machine can penetrate through the earth surface, a sand-interlaying soil layer or a hard soil layer, and reinforce a soft soil layer below the sand-interlaying soil layer or below the hard soil layer, and therefore save engineering construction cost.
Description
Technical field
The present invention relates to reinforced soft soil ground field, specifically, relate to a kind of method of utilizing layering mixing pile machine to reinforce Soft Soil Layer.
Background technology
China coast, riverine area are the economic most developed areas of China, and formation and the fast development of Yangtze River Delta Region, Delta of Pearl River and the ring Bohai Sea three large economic circles more become the important engine of China's economic development.Meanwhile, the most intensive area of coastal riverine regional Ye Shi China's infrastructure construction.But these coastal, riverine developed regions are all generally positioned at soft clay area, the certain thickness weak soil of ubiquity in the depth bounds of engineering construction impact.Weak soil has that intensity is low, compressibilty is high and moisture content high, therefore Soft Ground is one of key technology difficult problem in all kinds of infrastructure construction engineerings, particularly extensive speedway, high-speed railway, underground space development, large pier engineering construction in recent years, has higher requirement to Soft Soil Subgrade Treatment Techniques.
Cement mixing method is one of effective ways of reinforcing soft ground, it is to utilize cement as curing compound, by special deep-layer stirring machinery while creeping into toward jet cement slurries or cement flour in weak soil, and on the spot by weak soil and curing compound action of forced stirring, by series of physical chemical action between curing compound and weak soil, form higher, the globality of intensity, cement-soil firming body that water stability is good.This cement mixing method forms composite foundation together with pile peripheral earth, can improve soil strength, reduces ground compressibilty, reduces ground permeability, thereby reaches the object of reinforcing soft ground.
Because cement mixing method has easy construction, treatment effect is better, applicability is wide, the advantages such as cost is moderate, this technology is at home and abroad widely applied in the reinforcing of the end, Soft Deep Foundation Pit hole, engineering practice shows, at the bottom of Foundation Pit after cement mixing method, can improve the physico-mechanical properties of the soil body, not only can increase the passive earth pressure before supporting and protection structure, and then the side of reducing supporting and protection structure is out of shape and surface settlement, and can strengthen the ability that the anti-protuberance in the end, hole is out of shape, prevent the destruction of the passive area soil body, and then the overturning or slip resistance analysis of foundation ditch, antiskid moves and resistance to overturning will improve greatly.But, in engineering application, still there are many problems, be summed up and mainly contain:
(1) existing mixing pile construction machinery can only be from earth's surface down the full degree of depth reinforce soil layer, can not be according to requirement of engineering, only reinforce after excavation the soil body within the scope of the certain depth of foundation ditch bottom.As only reinforced the following Soft Soil Layer in foundation ditch bottom surface in base pit engineering, intend excavation soil layer and do not reinforce, can greatly save engineering construction cost.
(2) reinforcing soil layer is too single, if while there is certain thickness burning into sand soil layer or hardpan in weak soil, existing mixing pile construction machinery is difficult to penetrate, and this can not effectively reinforce sandy soils or the following Deep Thick Soft Ground distributing of hardpan;
Due to the existence of the problems referred to above, affect cement mixing method range of application in base pit engineering.
Summary of the invention
Technical problem: technical problem to be solved by this invention is: a kind of method of utilizing layering mixing pile machine to reinforce Soft Soil Layer is provided, the method can be passed earth's surface, burning into sand soil layer or hardpan, the Soft Soil Layer that is positioned at earth's surface, burning into sand soil layer or hardpan below, toward reinforcing, is saved to engineering construction cost.
Technical scheme: for solving the problems of the technologies described above, the technical solution used in the present invention is:
A method of utilizing layering mixing pile machine to reinforce Soft Soil Layer, the method comprises the following steps:
Step 10) layering mixing pile machine is installed: first utilize the smooth earth's surface for the treatment of reinforcing soft soil layer of bulldozer, then on the earth's surface after smooth, layering mixing pile machine is installed;
Step 20) control stirring-head to Soft Soil Layer to be reinforced: start layering mixing pile machine, make outer bar and the interior bar of score layer mixing pile machine pierce below, earth's surface along stake machine support, outer bar and interior bar are through the soil layer that does not need to reinforce, until arrive Soft Soil Layer bottom to be reinforced;
Step 30) launch stirring-head: first by regulation and control brake power device, make the first transmission mechanism continue operation, the second transmission mechanism is out of service, interior bar is walked downwards, make interior masthead portion and the engaging of outer masthead portion, meanwhile, the elastic buckling bar that is fixed on fixed head below shifts out outer bar inner chamber, launches stirring vane;
Step 40) prepare cement mixing method: first cut Soft Soil Layer: utilize outer bar rotational speed governor to drive interior bar, outer bar to rotate together with stirring-head, open and send stock pump simultaneously, cavity between the outside bar of stock inlet and interior bar, carry cement paste or cement flour, cement paste or cement flour that recycling stirring vane stirs weak soil and flows out from grout outlet, form cement-soil; Meanwhile, utilize the cooperation of outer bar rotational speed governor and outer bar, synchronously upwards walking of bar and outer bar in realizing, drive stirring-head upwards to walk, stirring-head cuts Soft Soil Layer simultaneously, and stirs weak soil and cement paste or cement flour, thereby formation cement mixing method, completes the reinforcing to Soft Soil Layer.
Further, the described method of utilizing layering mixing pile machine to reinforce Soft Soil Layer, also comprises step 50) take out stirring-head: first start brake power device, the first transmission mechanism operation, interior bar and fixed head are upwards walked, and stirring vane is contracted in outer bar inner chamber; Then by the outer bar rotational speed governor of brake power device control, outer bar rotational speed governor is no longer contacted with outer bar; Then, start brake power device, the first transmission mechanism and the second transmission mechanism be upwards walking simultaneously, makes outer bar and interior bar shift out earth's surface.
Further, described step 10) in, the process that layering mixing pile machine is installed is: on the earth's surface by floor installation after smooth, again stake machine support is fixed on base, brake power device and outer bar rotational speed governor are placed on base, then the first transmission mechanism and the second transmission mechanism two sets of transmission mechanism are arranged on a machine support, every sets of transmission mechanism includes sprocket wheel, chain, conveyer belt and driving wheel, sprocket wheel is connected on a machine support, chain is wrapped on sprocket wheel, driving wheel is connected on base, and driving wheel is matched with the output shaft of brake power device, conveyer belt is wrapped on driving wheel and a sprocket wheel, subsequently brake power device is connected to the rotation of the outer bar of outer bar rotational speed governor control and stirring-head with outer bar rotational speed governor by horizontal drive shaft, then outer bar is sleeved on to the outside of interior bar, the top of interior bar passes outer bar, the fastener that can cooperatively interact is set on the top of interior bar and the top of outer bar, one side of interior bar guide peg is fixedly connected on to the top of interior bar, the opposite side of interior bar guide peg is fixedly connected on the chain of the first transmission mechanism, one side of outer bar guide peg is fixedly connected with to the top of bar outside, the opposite side of outer bar guide peg is fixedly connected on the chain of the second transmission mechanism, masthead portion arranges stock inlet outside, outer bar rotational speed governor and base are passed in the bottom of outer bar, bar bottom wall sets out slurry mouthful outside, in the bottom of interior bar, fixed head 17 is set, fixed head is embedded in the inner chamber of bar outside, n elastic buckling bar is set below fixed head, the top of each elastic buckling bar is connected with the bottom surface of fixed head, the end of each elastic buckling bar is connected with a stirring vane, one end of each stirring vane is linked at by pin on the wall of outer bar, n is more than or equal to 2 integer.
Beneficial effect: compared with prior art, technical scheme of the present invention has following beneficial effect:
(1) adopt collapsible stirring vane, reduce not reinforcing the construction disturbance of soil layer.Existing stirring vane is regular length, horizontal, and not collapsible.When the stirring vane of employing existing structure is reinforced Soft Soil Layer, stirring vane is horizontal, i.e. open configuration, after the Soft Soil Layer not needing reinforcement is destroyed, just can enter in the Soft Soil Layer needing reinforcement.Meanwhile, in existing reinforcement means, stirring vane is not collapsible, and agitation pile footpath is fixed, unmodifiable.And the layering mixing pile machine adopting in reinforcement means of the present invention comprises the stirring-head being made up of elastic buckling bar and stirring vane.The top of each elastic buckling bar is fixed on fixed head, a stirring vane of bottom link of each elastic buckling bar.Mobile fixed head, elastic buckling bar also moves thereupon.Like this, the amplitude of opening of stirring vane can regulate by fixed head.The stirring vane of selecting different folding degree, can form different agitation pile footpaths.In addition, in the time of the Soft Soil Layer through not needing reinforcement, stirring vane is in closure state, can avoid the construction disturbance of reinforcing soft soil layer not.
(2) the method is simple, easy to operate.Method of the present invention, utilizes layering mixing pile machine to stir reinforcing to Soft Soil Layer.Whole method is simple, easy to operate.
(3) can, through the soil layer that does not need to reinforce, only reinforce the Soft Soil Layer of intending reinforcing, and then save construction costs.Method of the present invention, for the soil layer of not reinforcing, utilizes collapsible stirring vane, makes stirring vane in closure state, thereby easily through the soil layer that does not need to reinforce.For the Soft Soil Layer needing reinforcement, utilize collapsible stirring vane, make stirring vane in open configuration, Soft Soil Layer is reinforced.In addition, utilize the displacement of fixed head, control the amplitude of opening of stirring vane, meet the construction demand in different agitation piles footpath.
Brief description of the drawings
Fig. 1 is step 10 of the present invention) schematic diagram.
Fig. 2 is step 20 of the present invention) schematic diagram.
Fig. 3 is step 30 of the present invention) schematic diagram.
Fig. 4 is step 40 of the present invention) schematic diagram.
Fig. 5 is step 50 of the present invention) in the schematic diagram of closed stirring vane.
Fig. 6 is step 50 of the present invention) take out the schematic diagram of stirring-head.
Fig. 7 is the structural representation of the layering mixing pile machine in the present invention.
Fig. 8 is stirring-head in the present invention schematic diagram in folded state.
In figure, have: base 1, brake power device 2, stake machine support 3, interior bar guide peg 4, interior bar 5, outer bar guide peg 6, outer bar 7, outer bar rotational speed governor 8, stirring-head 9, sprocket wheel 10, chain 11, conveyer belt 12, driving wheel 13, horizontal drive shaft 14, stock inlet 15, grout outlet 16, fixed head 17, elastic buckling bar 18, stirring vane 19, do not need soil layer 20, the Soft Soil Layer 21 reinforced.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail.
A kind of method of utilizing layering mixing pile machine to reinforce Soft Soil Layer of the present invention, comprises the following steps:
Step 10) layering mixing pile machine is installed: as shown in Figure 1, first utilize the smooth earth's surface for the treatment of reinforcing soft soil layer of bulldozer, then on the earth's surface after smooth, layering mixing pile machine is installed.
The process that layering mixing pile machine is installed is: base 1 is arranged on the earth's surface after smooth, again stake machine support 3 is fixed on base 1, brake power device 2 and outer bar rotational speed governor 8 are placed on base 1, then the first transmission mechanism and the second transmission mechanism two sets of transmission mechanism are arranged on a machine support 3, every sets of transmission mechanism includes sprocket wheel 10, chain 11, conveyer belt 12 and driving wheel 13, sprocket wheel 10 is connected on a machine support 3, chain 11 is wrapped on sprocket wheel 10, driving wheel 13 is connected on base 1, and driving wheel 13 is matched with the output shaft of brake power device 2, conveyer belt 12 is wrapped on driving wheel 13 and a sprocket wheel 10, subsequently brake power device 2 is connected with outer bar rotational speed governor 8 by horizontal drive shaft 14, outer bar rotational speed governor 8 is controlled the rotation of outer bar 7 and stirring-head 9, then outer bar 7 is sleeved on to the outside of interior bar 5, the top of interior bar 5 passes outer bar 7, the fastener that can cooperatively interact is set on the top of interior bar 5 and the top of outer bar 7, one side of interior bar guide peg 4 is fixedly connected on to the top of interior bar 5, the opposite side of interior bar guide peg 4 is fixedly connected on the chain of the first transmission mechanism, one side of outer bar guide peg 6 is fixedly connected with to the top of bar 7 outside, the opposite side of outer bar guide peg 6 is fixedly connected on the chain of the second transmission mechanism, bar 7 tops arrange stock inlet 15 outside, outer bar rotational speed governor 8 and base 1 are passed in the bottom of outer bar 7, bar 7 bottom walls set out slurry mouth 16 outside, in the bottom of interior bar 5, fixed head 17 is set, fixed head 17 is embedded in the inner chamber of bar 7 outside, n elastic buckling bar 18 is set below fixed head 17, the top of each elastic buckling bar 18 is connected with the bottom surface of fixed head 17, the end of each elastic buckling bar 18 is connected with a stirring vane 19, one end of each stirring vane 19 is linked at by pin on the wall of outer bar 7, n is more than or equal to 2 integer.Wherein, n is preferably 3, and angle between three stirring vanes 19 is 120 degree.Three stirring vanes 19 are set in stirring-head 9, and are uniformly distributed, can meet cutting soil layer, and stir the object of the soil body and cement grout, and cost is low.
Step 20) control stirring-head 9 to Soft Soil Layer to be reinforced 21: as shown in Figure 2, start layering mixing pile machine, make outer bar 7 and the interior bar 5 of score layer mixing pile machine pierce below, earth's surface along stake machine support 3, outer bar 7 and interior bar 5 are through the soil layer 20 that does not need to reinforce, until arrive Soft Soil Layer to be reinforced 21 bottoms.
Step 30) expansion stirring-head 9: as shown in Figure 3, first by regulation and control brake power device 2, make the first transmission mechanism continue operation, the second transmission mechanism is out of service, interior bar 5 is walked downwards, makes interior bar 5 tops and the 7 top engagings of outer bar, simultaneously, the elastic buckling bar 18 that is fixed on fixed head 17 belows shifts out outer bar 7 inner chambers, launches stirring vane 19;
Step 40) prepare cement mixing method: as shown in Figure 4, first cut Soft Soil Layer: utilize outer bar rotational speed governor 8 to drive interior bar 5, outer bar 7 to rotate together with stirring-head 9, open and send stock pump simultaneously, cavity between the outside bar 7 of stock inlet 15 and interior bar 5, carry cement paste or cement flour, cement paste or cement flour that recycling stirring vane 19 stirs weak soil and flows out from grout outlet 16, form cement-soil; Meanwhile, utilize the cooperation of outer bar rotational speed governor 8 and outer bar 7, synchronously upwards walking of bar 5 and outer bar 7 in realizing, drive stirring-head 9 upwards to walk, stirring-head 9 cuts Soft Soil Layer simultaneously, and stirs weak soil and cement paste or cement flour, thereby formation cement mixing method, completes the reinforcing to Soft Soil Layer.
Further, the described method of utilizing layering mixing pile machine to reinforce Soft Soil Layer, also comprise step 50) taking-up stirring-head 9: as shown in Figure 5, first start brake power device 2, the first transmission mechanism operation, interior bar 5 and fixed head 17 are upwards walked, and stirring vane 19 is contracted in outer bar 7 inner chambers; Then control outer bar rotational speed governor 8 by brake power device 2, outer bar rotational speed governor 8 is no longer contacted with outer bar 7; Then, as shown in Figure 6, start the upwards walking simultaneously of brake power device 2, the first transmission mechanisms and the second transmission mechanism, make outer bar 7 and interior bar 5 shift out earth's surface.
As shown in Figure 7 and Figure 8, the layering mixing pile machine adopting in method of the present invention, comprises base 1, brake power device 2, stake machine support 3, interior bar guide peg 4, interior bar 5, outer bar guide peg 6, outer bar 7, outer bar rotational speed governor 8 and stirring-head 9.Stake machine support 3 is fixedly connected on base 1, and brake power device 2 and outer bar rotational speed governor 8 are positioned at the end face of base 1.Stake machine support 3 is provided with the first transmission mechanism and the second transmission mechanism two sets of transmission mechanism.Every sets of transmission mechanism comprises sprocket wheel 10, chain 11, conveyer belt 12 and driving wheel 13.Sprocket wheel 10 is connected on a machine support 3, and sprocket wheel 10 can be around its axis rotation.Ringwise, chain 11 is wrapped on sprocket wheel 10 chain 11.Driving wheel 13 is connected on base 1, and driving wheel 13 matches with the output shaft of brake power device 2.The output shaft of brake power device 2 can drive driving wheel 13 to rotate.Conveyer belt 12 is wrapped on driving wheel 13 and a sprocket wheel 10.Like this, the rotation of driving wheel 13, can drive conveyer belt 12 to rotate, and conveyer belt 12 is with again movable sprocket 10 to rotate, and the chain 11 being wrapped on sprocket wheel 10 also rotates thereupon.Brake power device 2 is connected with outer bar rotational speed governor 8 by horizontal drive shaft 14.Brake power device 2 can be controlled the startup of outer bar rotational speed governor 8 and out of service.Outer bar rotational speed governor 8 is controlled the rotation of outer bar 7 and stirring-head 9.As preferably, the cross section of outer bar 7 is square.Outer bar 7 by gear coupling, makes outer bar rotational speed governor 8 can control the rotating speed of outer bar 7 with outer bar rotational speed governor 8.Outer bar 7 is sleeved on the outside of interior bar 5.The top of interior bar 5 passes outer bar 7.The top of the top of interior bar 5 and outer bar 7 is provided with the fastener that can cooperatively interact.The structure of fastener is various.For example, the top of bar 7 arranges bayonet socket outside, at the top of interior bar 5, projection is set, and projection matches with bayonet socket.In the time that outer bar 7 maintains static, interior bar 5 moves down under the drive of chain 11, until the projection of interior bar 5 is fastened in the bayonet socket of outer bar 7, thereby outer bar 7 and interior bar 5 is clamped, and rotates together.One side of interior bar guide peg 4 is fixedly connected on the top of interior bar 5, and the opposite side of interior bar guide peg 4 is fixedly connected on the chain of the first transmission mechanism.Like this, the rotation of chain in the first transmission mechanism, can drive interior bar 5 upwards to walk or walking downwards.Interior bar 5 is connected by flange setting with interior bar guide peg 4.That is to say, 4 of interior bar guide pegs prevent that interior bar 5 from moving left and right, and guarantee that interior bar 5 can walk up and down, and rotate but interior bar guide peg 4 does not retrain interior bar 5.One side of outer bar guide peg 6 is fixedly connected with the top of bar 7 outside, and the opposite side of outer bar guide peg 6 is fixedly connected on the chain of the second transmission mechanism.The rotation of chain in the second transmission mechanism, can drive outer bar 7 upwards to walk or walking downwards.Outer bar 7 is connected by flange setting with outer bar guide peg 6.That is to say, 6 of outer bar guide pegs prevent that outer bar 7 from moving left and right, and guarantee that outer bar 7 can walk up and down, and rotate but outer bar guide peg 6 does not retrain outer bar 7.Outer bar 7 tops are provided with stock inlet 15.Cement slurrypump is sent into cement grout in outer bar 7 by stock inlet 15.In the cavity of cement grout between outer bar 7 and interior bar 5, flow downward.The bottom of outer bar 7 is through outer bar rotational speed governor 8 and base 1.The wall of outer bar 7 bottoms is provided with grout outlet 16.Cement grout flows out from grout outlet 16.The bottom of interior bar 5 is provided with fixed head 17, and fixed head 17 is embedded in the inner chamber of bar 7 outside.Fixed head 17 is fixedly connected on the bottom of interior bar 5, can walk up and down with interior bar 5.Stirring-head 9 is connected to the bottom surface of fixed head 17.
Described stirring-head 9 comprises n elastic buckling bar 18 and n stirring vane 19, the top of each elastic buckling bar 18 is fixedly connected on the bottom surface of fixed head 17, a stirring vane 19 of end link of each elastic buckling bar 18, one end of each stirring vane 19 is linked at by pin on the wall of outer bar 7; N is more than or equal to 2 integer.Existing stirring vane is regular length, horizontal, and not collapsible.Stirring-head of the present invention, by elastic buckling bar 18 is set, can be selected the stirring vane 19 of different folding degree, and then form different agitation pile footpaths.
Described outer bar 7 and interior bar 5 can coaxially arrange.Outer bar 7 and interior bar 5 coaxially arrange, and are conducive to install and location.In described every sets of transmission mechanism, sprocket wheel 10 is four, is connected to two relative sides of a machine support 3 tops and two relative sides of stake machine support 3 bottoms.Four sprocket wheels 10 are set, can make the location of chain 11 more firm.The length of described stirring vane 19 can be determined according to engineering actual demand, is preferably 1000mm.
The method that Soft Soil Layer is reinforced of the present invention, adopts collapsible stirring vane 19, and through the Soft Soil Layer (or sandy soils or hardpan) not needing reinforcement, only local stiffening is intended reinforcing soft soil layer; Collapsible stirring vane 19 is not when needing reinforcing soft soil layer, and stirring vane 19 shrinks, and can also reduce the construction disturbance of reinforcing soft soil layer not.
It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.In the present embodiment not clear and definite each ingredient all available existing bidirectional stirring pile technology realized.
Claims (4)
1. a method of utilizing layering mixing pile machine to reinforce Soft Soil Layer, is characterized in that, the method comprises the following steps:
Step 10) layering mixing pile machine is installed: first utilize the smooth earth's surface for the treatment of reinforcing soft soil layer of bulldozer, then on the earth's surface after smooth, layering mixing pile machine is installed;
Step 20) control stirring-head (9) to Soft Soil Layer to be reinforced (21): start layering mixing pile machine, make outer bar (7) and the interior bar (5) of score layer mixing pile machine pierce below, earth's surface along stake machine support (3), outer bar (7) and interior bar (5) are through the soil layer (20) that does not need to reinforce, until arrive Soft Soil Layer to be reinforced (21) bottom;
Step 30) launch stirring-head (9): first by regulation and control brake power devices (2), make the first transmission mechanism continue operation, the second transmission mechanism is out of service, interior bar (5) is walked downwards, make interior bar (5) top and the engaging of outer bar (7) top, simultaneously, the elastic buckling bar (18) that is fixed on fixed head (17) below shifts out outer bar (7) inner chamber, launches stirring vane (19);
Step 40) prepare cement mixing method: first cut Soft Soil Layer: utilize outer bar rotational speed governor (8) to drive interior bar (5), outer bar (7) and stirring-head (9) to rotate together, open and send stock pump simultaneously, cavity between the outside bar (7) of stock inlet (15) and interior bar (5), carry cement paste or cement flour, cement paste or cement flour that recycling stirring vane (19) stirs weak soil and flows out from grout outlet (16), form cement-soil; Simultaneously, utilize the cooperation of outer bar rotational speed governor (8) and outer bar (7), synchronously upwards walking of bar (5) and outer bar (7) in realizing, drive stirring-head (9) upwards to walk, stirring-head (9) cuts Soft Soil Layer simultaneously, and stir weak soil and cement paste or cement flour, thus form cement mixing method, complete the reinforcing to Soft Soil Layer;
Described layering mixing pile machine comprises base (1), brake power device (2), stake machine support (3), interior bar guide peg (4), interior bar (5), outer bar guide peg (6), outer bar (7), outer bar rotational speed governor (8) and stirring-head (9); Stake machine support (3) is fixedly connected on base (1), brake power device (2) and outer bar rotational speed governor (8) are positioned at the end face of base (1), and stake machine support (3) is provided with the first transmission mechanism and the second transmission mechanism two sets of transmission mechanism; Every sets of transmission mechanism comprises sprocket wheel (10), chain (11), conveyer belt (12) and driving wheel (13), sprocket wheel (10) is connected on a machine support (3), sprocket wheel (10) can be around its axis rotation, chain (11) ringwise, chain (11) is wrapped on sprocket wheel (10), driving wheel (13) is connected on base (1), and driving wheel (13) matches with the output shaft of brake power device (2), conveyer belt (12) is wrapped on driving wheel (13) and a sprocket wheel (10); Brake power device (2) is connected with outer bar rotational speed governor (8) by horizontal drive shaft (14), and outer bar rotational speed governor (8) is controlled the rotation of outer bar (7) and stirring-head (9); Outer bar (7) is sleeved on the outside of interior bar (5), the top of interior bar (5) passes outer bar (7), the top of the top of interior bar (5) and outer bar (7) is provided with the fastener that can cooperatively interact, one side of interior bar guide peg (4) is fixedly connected on the top of interior bar (5), and the opposite side of interior bar guide peg (4) is fixedly connected on the chain of the first transmission mechanism; One side of outer bar guide peg (6) is fixedly connected with the top of bar (7) outside, and the opposite side of outer bar guide peg (6) is fixedly connected on the chain of the second transmission mechanism; Outer bar (7) top is provided with stock inlet (15), and the bottom of outer bar (7) is through outer bar rotational speed governor (8) and base (1); The wall of outer bar (7) bottom is provided with grout outlet (16), the bottom of interior bar (5) is provided with fixed head (17), fixed head (17) is embedded in the inner chamber of bar (7) outside, and fixed head (17) can walk up and down with interior bar (5); Stirring-head (9) is connected to the bottom surface of fixed head (17).
2. according to the method for utilizing layering mixing pile machine to reinforce Soft Soil Layer claimed in claim 1, it is characterized in that, also comprise step 50) take out stirring-head (9): first start brake power device (2), the first transmission mechanism operation, interior bar (5) and fixed head (17) are upwards walked, and stirring vane (19) is contracted in outer bar (7) inner chamber; Then control outer bar rotational speed governor (8) by brake power device (2), outer bar rotational speed governor (8) is no longer contacted with outer bar (7); Then, start brake power device (2), the first transmission mechanism and the second transmission mechanism be upwards walking simultaneously, makes outer bar (7) and interior bar (5) shift out earth's surface.
3. according to the method for utilizing layering mixing pile machine to reinforce Soft Soil Layer claimed in claim 1, it is characterized in that described step 10) in, the process that layering mixing pile machine is installed is: base (1) is arranged on the earth's surface after smooth, again stake machine support (3) is fixed on to base (1) upper, brake power device (2) and outer bar rotational speed governor (8) are placed on base (1), then the first transmission mechanism and the second transmission mechanism two sets of transmission mechanism are arranged on a machine support (3), every sets of transmission mechanism includes sprocket wheel (10), chain (11), conveyer belt (12) and driving wheel (13), sprocket wheel (10) is connected on a machine support (3), chain (11) is wrapped on sprocket wheel (10), driving wheel (13) is connected on base (1), and driving wheel (13) is matched with the output shaft of brake power device (2), conveyer belt (12) is wrapped on driving wheel (13) and a sprocket wheel (10), subsequently brake power device (2) is connected with outer bar rotational speed governor (8) by horizontal drive shaft (14), outer bar rotational speed governor (8) is controlled the rotation of outer bar (7) and stirring-head (9), then outer bar (7) is sleeved on to the outside of interior bar (5), the top of interior bar (5) passes outer bar (7), the fastener that can cooperatively interact is set on the top of interior bar (5) and the top of outer bar (7), one side of interior bar guide peg (4) is fixedly connected on to the top of interior bar (5), the opposite side of interior bar guide peg (4) is fixedly connected on the chain of the first transmission mechanism, one side of outer bar guide peg (6) is fixedly connected with to the top of bar (7) outside, the opposite side of outer bar guide peg (6) is fixedly connected on the chain of the second transmission mechanism, bar (7) top arranges stock inlet (15) outside, outer bar rotational speed governor (8) and base (1) are passed in the bottom of outer bar (7), bar (7) bottom wall sets out slurry mouthful (16) outside, bottom at interior bar (5) arranges fixed head 17, fixed head (17) is embedded in the inner chamber of bar (7) outside, in fixed head (17) below, n elastic buckling bar (18) is set, the top of each elastic buckling bar (18) is connected with the bottom surface of fixed head (17), the end of each elastic buckling bar (18) is connected with a stirring vane (19), one end of each stirring vane (19) is linked at by pin on the wall of outer bar (7), n is more than or equal to 2 integer.
4. according to the method for utilizing layering mixing pile machine to reinforce Soft Soil Layer claimed in claim 3, it is characterized in that, n is 3.
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| CN103321205B (en) * | 2013-06-20 | 2015-06-24 | 南京盼源工程技术有限公司 | Disturbance compaction method for natural sedimentary soft clay foundations |
| CN107354941A (en) * | 2017-08-30 | 2017-11-17 | 成都智宸科技有限公司 | A kind of strong building stake of stability |
| JP7473432B2 (en) | 2020-09-17 | 2024-04-23 | 日特建設株式会社 | Ground improvement body construction device and ground improvement body construction method |
| CN115500333B (en) * | 2022-09-29 | 2023-11-03 | 中国农业科学院茶叶研究所 | Apolygus lucorum trapper and trapping method |
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| WO1990002243A1 (en) * | 1988-08-29 | 1990-03-08 | Catawa Pty. Ltd. | Drills for piles and soil stabilization |
| JP2645322B2 (en) * | 1988-11-19 | 1997-08-25 | 新日本製鐵株式会社 | Construction method of soil cement composite pile |
| CN101230572B (en) * | 2008-02-27 | 2010-09-01 | 东南大学 | Pile-forming operation method for bidirectional agitation cement injection pile |
| CN201209250Y (en) * | 2008-03-13 | 2009-03-18 | 刘松玉 | Bidirectional stirring pile machine |
| JP2011153449A (en) * | 2010-01-27 | 2011-08-11 | East Japan Railway Co | Method for creating soil improvement body |
| CN102102362A (en) * | 2011-03-09 | 2011-06-22 | 夏力农 | Method for directly reinforcing soft underlying soil foundation |
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