CN1436900A - Multi-point foundation injection construction method and equipment - Google Patents
Multi-point foundation injection construction method and equipment Download PDFInfo
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- CN1436900A CN1436900A CN03102332A CN03102332A CN1436900A CN 1436900 A CN1436900 A CN 1436900A CN 03102332 A CN03102332 A CN 03102332A CN 03102332 A CN03102332 A CN 03102332A CN 1436900 A CN1436900 A CN 1436900A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
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- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
This invention of a multi-point pouring construction method of ground modification and the devices thereof is to pour ground-modifying material into soft ground in various points, providing the most proper way of pouring for each layer simultaneously or selectively especially for ground with various layers as well as providing three-dimensional ways of pouring vertically and horizontally. Also, it is able to control at random and pour material in via multiple pipes at the same time in order to shorten pouring time and promote reliability of permeation pouring into grits. Methods mentioned above is to embed poring pipes 8 with outlets 7 into multiple pouring points 6 of ground 1 to pouring into ground-modifying material through outlets 7 motored via independent motive sources 4 with multi-jointed pouring devices 5 of multiple pumps 3, 3...3 controlled by a central controlling device 26. And guiding pipes are connected to multiple pouring pipes 8 via ducts to pouring ground-modifying material from multiple outlets into multiple pouring points 6, 6...6 on ground.
Description
Technical field
The present invention relates to a kind of multiple spot implantation method for ground foundation construction and device that ground-improving material multiple spot ground is injected the ground of soft foundation etc.; Particularly relate to a kind of following multiple spot implantation method for ground foundation construction and device, this multiple spot implantation method for ground foundation construction and device are for every layer in each layer of foundation situation all different ground, can realize that not only each layer of each layer carries out optimal injection to these simultaneously or selectively, but also can carry out in ground vertically, laterally inject three-dimensionally, and, can at random control injection from a plurality of ascending pipes, and can side by side inject by a plurality of ascending pipes, therefore, can improve the reliability of soaking into injection, and also shorten the injection duration owing to construct rapidly to fine soil layer.
At this, ground-improving material refer to be used for to the ground of soft foundation etc. strengthen or the ground consolidation of water proof with injection material, be used to solidify trade waste etc. the public hazards material curing injection material, be used to form prevent from the public hazards material spill the water barrier of hazardous substances cementing material, contain nuisancelessization that is useful on the public hazards material chemical substance the injection medicinal material or make heavy metal immobilization material of chemical deactivations such as heavy metal etc.
Background technology
Ground is the foundation situation difference of each layer because every layer coefficient of permeability in each layer or clearance rate are different usually.When this ground injects soup, the past is separately ascending pipe to be inserted in the ground or several devices spaced apart ground inserts in the ground, injects stratum and upwards or down moves injection material in turn while make by these ascending pipes.
, carrying out soup when injecting, maximum problem is to soaking into of the little fine sand bed of coefficient of permeability or soaking into to the homogeneous of the ground that is made of different soil layers.
To the water permeability of fine sand bed k=10 normally
-3～10
-4Cm/ second, for such soil layer when injecting soup in order not cause the destruction of ground, must carry out low pressure and inject with per minute below the 1 liter～low discharge rate of several liters on the penetration theory.
But the known injection construction method above-mentioned uses one group injection pump respectively for 1 ascending pipe.In such injection mode, from thinking that as far as possible the economy aspect of reduction of erection time is considered, and consider to have to adopt the discharge rate of 10～20 liters of per minutes, injection pressure to uprise from pump performance boundary aspect and the destruction that causes ground.Therefore, cause that soaking into of ground protuberance or fine soil layer is fixed insufficient.
In addition, in injection to the ground of different soil, when soil layer changes, injection rate is changed or the control injection rate is difficult in practicality corresponding to the variation of this soil layer, therefore, produced the injection liquid that in certain layer, has spread volume and,, can not obtain adjacent induration continuity to each other at such injection state certain layer of situation of only having soaked into micro-parenteral solution etc.
As the applicant application in first to file, the disclosed application of Japanese kokai publication hei 12-45259 communique is arranged.According to this application, it is that a plurality of ascending pipes are configured in the ground, by these a plurality of ascending pipes when separately outlet opening injects ground-improving material to ground, in an equipment, have many modular pumps, make the multi-joint armored pump of these many modular pump work that above-mentioned improvement material is sent to each ascending pipe by a drive source simultaneously, be injected into the ground from outlet opening.
In above-mentioned known technology, from the pump unit to the injection hole, need grow distance owing to inject tubule, therefore need to use low viscosity, the injection liquid of long gel time.But the injection liquid of long gel time was when once beginning to ground surface or beginning when the thick layer of ground is escaped, and had to make inject and ended in order to shorten gelation time, during it, produced mortar and was injecting the bad problem of tubule inner gelization etc.
In addition, owing to drive the many modular pumps that constitute multi-joint armored pump simultaneously by a drive source, though the foundation condition difference in exit separately, therefore best injection condition difference, but whole modular pumps all drives with identical conditions, therefore, can not carry out best injection for each outlet opening.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of multiple spot implantation method for ground foundation construction and device that has improved the shortcoming of above-mentioned known technology, this multiple spot implantation method for ground foundation construction and device, not only effectively utilize by the low pressure that is developed so far and soak into the advantage of injecting the multiple spot injection pump that constitutes for the mortar of the ground in big zone, and the injection rate that can at random manage each modular pump corresponding to the injection situation of each mortar ascending pipe, injection pressure, the termination of injecting, begin again, gelation time etc., and, can hold the integral body of managing the injection situation by the work of side by side managing many modular pumps.
Another object of the present invention is when being injected by the thick filling of once injecting generation or when the mortar of injection long gel time begins to overflow, prevent the generation of this situation by injecting the short mortar of gelation time, the practicality that the multiple spot that undertaken by multi-joint dress injection device is injected is developed by leaps and bounds.
In addition, another purpose of the present invention provides a kind of multiple spot implantation method for ground foundation construction and device that has improved the shortcoming that exists in the above-mentioned known technology, this multiple spot implantation method for ground foundation construction and device not only by discharge rate be below 1 liter～several liters/minute variable discharge rate side by side or selectively realize injecting with respect to the few particulate soil layer of water permeability or the best of every layer of different ground in each layer of foundation situation, but also can carry out in ground vertical, horizontal solid is injected, therefore, improved the reliability of soaking into injection to fine soil layer, and also realized injecting the shortening of duration by constructing rapidly.
Another purpose of the present invention provides a kind of multiple spot implantation method for ground foundation construction and device that has improved the shortcoming that exists in the above-mentioned known technology, this multiple spot implantation method for ground foundation construction and device, its operable ground-improving material not only can be the solution-type injection material but also can be the floating type injection material, thus, can select any injection corresponding to the foundation situation of each decanting point.
In order to achieve the above object, multiple spot implantation method for ground foundation construction of the present invention, be a plurality of decanting points that many ascending pipes with outlet opening are embedded in ground, inject ground-improving material by these ascending pipes from a plurality of outlet openings while multiple spots, it is characterized in that, use has by independently drive source start respectively, and by the multi-joint dress injection device of many modular pumps of centralized management device control, these many modular pumps are connected with a plurality of ascending pipes by conduit, inject ground-improving material from a plurality of outlet openings by a plurality of decanting point multiple spots the ground by the start of above-mentioned many modular pumps.
In addition, in order to achieve the above object,, it is characterized in that having ground-improving material hutch, multi-joint dress injection device and many ascending pipes according to multiple spot ground injection device of the present invention; This multi-joint dress injection device has in an equipment by independently drive source start and by many modular pumps of centralized management device control respectively, and is connected with above-mentioned holding vessel; These many ascending pipes have outlet opening, are embedded in a plurality of decanting points of ground, are connected with above-mentioned each modular pump by conduit respectively; And, on above-mentioned independently many modular pumps, has the rotating speed variable-speed motor of controlling by the centralized management device respectively, in addition, on above-mentioned conduit, also be provided with the flow pressure detector, to deliver to the centralized management device from the flow of above-mentioned flow pressure detector and/or the signal of pressure data thus, with injection rate, injection pressure or injection rate arbitrarily the ground-improving material in the above-mentioned case is sent to each ascending pipe by the start of each modular pump, also is injected into the ground simultaneously from a plurality of outlet opening multiple spots.
Above-mentioned rotating speed variable-speed motor is controlled with the centralized management device blanketly.Therefore, many modular pumps constitute one side and have the function that the most suitably is injected into each decanting point independently, blanket as a whole on the other hand simultaneously one group of injection device managing the injection of many decanting points.
Description of drawings
Fig. 1 is the key diagram of the schematic diagram of expression device of the present invention.
Fig. 2 is the schematic diagram of piston pump.
Fig. 3 will annotate the schematic diagram that the plug pump uses as modular pump.
Fig. 4 will annotate the sectional drawing of plug pump as the object lesson of modular pump use.
Fig. 5 is the sectional drawing that is used for the diaphragm pump of modular pump of the present invention.
Fig. 6 is the sectional drawing that is used for the squeeze pump of modular pump of the present invention, (a)～(d) is the process chart of representing mode of operation respectively.
Fig. 7 is the sectional drawing that is used for the snakelike pump of modular pump of the present invention.
Fig. 8 is the flow chart of an object lesson of device of the present invention.
Fig. 9 is the flow chart of another object lesson of device of the present invention.
Figure 10 is the flow chart of the another object lesson of device of the present invention.
Figure 11 is an object lesson that is presented on the injection monitor of managing device concentratedly.
Figure 12 is the flow chart of other object lesson that uses apparatus of the present invention of a plurality of tubules as ascending pipe.
Figure 13 is the flow chart of the another object lesson of device of the present invention.
The specific embodiment
Below, use accompanying drawing to describe the present invention in detail.
Fig. 1 is the key diagram of the schematic diagram of expression device of the present invention.Fig. 2 is the schematic diagram of the original general piston pump that uses.Fig. 3 will annotate the schematic diagram that the plug pump uses as modular pump.Fig. 4 will annotate the sectional drawing of plug pump as the object lesson of modular pump use.Fig. 5 is the sectional drawing that is used for the diaphragm pump of modular pump of the present invention.Fig. 6 is the sectional drawing that is used for the squeeze pump of modular pump of the present invention, (a)～(d) is the process chart of representing mode of operation respectively.Fig. 7 is the sectional drawing that is used for the snakelike pump of modular pump of the present invention.Fig. 8 is the flow chart of an object lesson of device of the present invention.Fig. 9 is the flow chart of another object lesson of device of the present invention.Figure 10 is the flow chart of the another object lesson of device of the present invention.Figure 11 is an object lesson that is presented on the injection monitor of managing device concentratedly.Figure 12 is the flow chart of other object lesson that uses apparatus of the present invention of a plurality of tubules as ascending pipe.Figure 13 is the flow chart of the another object lesson of device of the present invention.
Multiple spot of the present invention ground based devices A shown in Fig. 1 has ground-improving material hutch 2, multi-joint dress injection device 5 and a plurality of ascending pipe 8,8 ... 8; This multi-joint dress injection device 5 has in an equipment respectively the independently drive source 4,4 by motor etc.. 4 starts and is connected also controlled a plurality of modular pumps 3,3 with centralized management device 26 ... 3, this multi-joint dress injection device 5 is by each conduit 9,9 ... 9 are connected with hutch 2.Above-mentioned a plurality of ascending pipe 8,8 ... 8 have outlet opening 7,7 ... 7, this outlet opening 7,7 ... in 7 injection pumps 6 that are embedded in the ground, also by conduit 10,10 ... 10 respectively with each modular pump 3,3 ... 3 connect.
And, at above-mentioned independently a plurality of single pumps 3,3 ... have on 3 with centralized management device 26 and be connected and the rotating speed variable- speed motor 25,25 of controlled converter etc.. 25, and at linkage unit pump 3,3 ... 3 with ascending pipe 8,8 ... 8 conduit 10,10 ... have on 10 with above-mentioned and similarly be connected and controlled flow pressure detector 27,27 with centralized management device 26 respectively ... 27.Ascending pipe 8,8 ... 8 for example use Y word pipe bar.
According to above-mentioned formation, in the present invention, flow automatically the in the future flow of piezometric force detector 27 and/or the signal of pressure data is sent to centralized management device 26, by each modular pump 3,3 ... 3 start is so that injection rate, injection pressure or injection rate are sent to each ascending pipe 8,8 with the ground-improving material in the case 2 arbitrarily ... 8, simultaneously from a plurality of outlet openings 7,7 ... 7 while multiple spots are injected into the decanting point 6,6 in the ground 1 ... 6, form injection zone 34.
Can enumerate piston pump, plunger displacement pump, diaphragm pump, extrusion pump, snakelike pump etc. as being used for unit 3 of the present invention.These pumps except piston pump other all be small-sized and simple structure and be not easy to produce the pump of fault, therefore, not only can use the improvement material of solution-type, but also can use the mortar of floating type.Go for modular pump of the present invention.Particularly Fig. 3～various pumps shown in Figure 7 be small-sized, light weight, low discharge and pulsation less, simple structure and be not easy to produce the pump of fault, therefore not only can use the improvement material of solution-type, and can use the mortar of floating type, be to be applicable to modular pump of the present invention.
Fig. 2 is the schematic diagram of piston pump 68, by plunger 12, constitute with the crank 16 that this plunger 12 is connected by piston rod 13 and bent axle 14, this crank 16 rotates together in company with the rotation of rotating shaft 15, as mentioned above, though can be high pressure, big discharge rate, its pulsation is big and large-scale, weight is big.
Fig. 3 has been to use the schematic diagram of the modular pump of the present invention 3 of plunger displacement pump 11.In Fig. 3, the part of plunger displacement pump 11 its plungers 12 is built in the cylinder 18 by gland packing 17 fillings with freely moving back and forth, is being connected with crank 16 by connecting rod 19, and this crank 16 is along with the rotation of rotating shaft 15 is rotated.Cylinder 18 is connected with suction hose 21 and delivery hose 22 by conduit 20 below plunger 12.
And when plunger displacement pump 11 work, at first, along with the rotation of axis of rotation 15, crank 16 is rotated and plunger 12 is yearned for direction, i.e. top pushing.At this moment, the ground-improving material in the ground-improving material hutch 2 shown in Fig. 1 is attracted by the input flexible pipe 21 among Fig. 3, pushes ball valve 23 open and is introduced into the amount of movement that is equivalent to plunger 12.Then, along with the rotation of rotating shaft 15, crank 16 rotates and plunger 12 is yearned for directions, i.e. below decline.At this moment, the improvement material that is attracted is urged and closes ball valve 23, pushes ball valve 24 open simultaneously, sends into delivery hose 22, and the conduit 10 by Fig. 1 is pressed in the ascending pipe 8, is injected into a plurality of decanting points 6,6 in the ground 1 ... 6.
Be to use the sectional drawing of specific embodiment of the modular pump of the present invention 3 of plunger displacement pump 11 among Fig. 4, identical with Fig. 3, the part of plunger displacement pump 11 its plungers 12 is built in the cylinder 18 by gland packing 17 fillings with freely moving back and forth, be connected with crank 16 by connecting rod 19, this crank 16 is rotated in company with the rotation of rotating shaft 15.Cylinder 18 is connected with suction hose 21 and delivery hose 22 by conduit 20 below plunger 12.
In Fig. 4, the 35th, guarantor's liquid bath of input side with covering 36 shutoff.The 37th, guarantor's liquid bath of discharge side similarly by lid 38 shutoff with above-mentioned.The 39th, the pressing tablet of lid 36,38.
When plunger displacement pump 11 work, at first, in company with the rotation of axis of rotation 15, crank 16 is rotated and plunger 12 is yearned for direction, i.e. top pushing.At this moment, the ground-improving material in the ground-improving material hutch 2 shown in Fig. 1 is attracted by the input flexible pipe among Fig. 3, pushes ball valve 23 open and is introduced into the amount of movement that is equivalent to plunger 12, protects liquid in protecting liquid bath 35.Then, in company with the rotation of rotating shaft 15, crank 16 rotates and plunger 12 is yearned for directions, i.e. below decline.At this moment, improvement material in the guarantor's liquid bath 35 that is attracted is urged and closes ball valve 23, pushes ball valve 24 open simultaneously, by conduit 20a, 20b, then be admitted to delivery hose 22 by protecting liquid bath 37, conduit 10 by Fig. 1 is pressed in the ascending pipe 8, is injected into a plurality of decanting points 6,6 in the ground 1 ... 6.
Fig. 5 is the profile that is used for diaphragm pump of the present invention.Constitute by oscillating deck 50, piston 53 and space 56, this oscillating deck 50 is installed on the axle 49 prejudicially, and along with the rotation of axle 19 is rotated together, above-mentioned piston 53 one ends contact with the plate face 50a of oscillating deck 50, on its other end, has barrier film 51, this piston 53 is by the elastic force start of spring 52, and above-mentioned space 56 is formed on barrier film 51 sides of piston 53, has the introducing port 54 and the outlet opening 55 of ground-improving material.
The above-mentioned diaphragm pump that constitutes like that is simple structure, small-sized pump, and in the running, by axis of rotation 49, oscillating deck 50 also is rotated.Because oscillating deck 50 is installed on the axle 49 prejudicially, 50 50a of plate obliquely are rotated.The piston 53 of one end in contact on this plate face 50a is along with the oblique rotation of plate face 50a is rocked from side to side by the elastic force of spring 52.At this moment, the barrier film 51 of the other end of piston 53 is swung with also expanding contraction to the left and right, will pass through the outlet opening 55 of the ground-improving material of valve 57 importings by valve 58 discharges from introducing port 54 by this power of shaking, and carries out this importing, discharge repeatedly.Valve 57,58 all is an one way valve.
Fig. 6 is the key diagram that is used for extrusion pump of the present invention, along tube 40 inner face built-in extraction tube 41.In the pump chamber 44 of the inboard of extraction tube 41, have to extract and roll 42,42 rotor 43 for middle heart is disposing two ends with rotating freely with rotating shaft 45.
In when operation, send into ground-improving material from the inlet 46 of extraction tube 41 along the direction of arrow, make rotor 43 rotations from the state of Fig. 6 (a) by the rotation of rotating shaft 45.At this moment, shown in Fig. 6 (b), the extraction at rotor 43 two ends rolls 42,42 like that ground-improving material is passed out to discharge 47 while shriveling extraction tube 41 shown in Fig. 6 (c) and Fig. 6 (d) with squeezing out the such mode of dentifrice tube, discharges along the direction of arrow.The extraction tube that has not had an improvement material turns back to original state with the recuperability of rubber itself.At this moment the attraction of Dao Daing is 740mmHg, and MDP is 30kgf/cm
2This extrusion pump can the force feed high viscosity, high concentration, the mud that contains fixed thing or mud shape thing.
Fig. 7 is the key diagram that is used for snakelike pump of the present invention, is made of stator 59, rotor 60, housing 61, inlet 62, outlet opening 65.This stator 59 has the internal thread of two screw threads, and above-mentioned rotor 60 is being configured with the inner face of this stator 59 with contacting and rotate freely, has a screw thread of half pitch of stator 59.Above-mentioned housing 60 is used to take in these stators 59 and rotor 60.Above-mentioned inlet 62 imports the end of ground-improving material from housing 61 in the gap 66 of stator 59 and rotor 60, and above-mentioned outlet opening 65 is discharged these ground-improving materials from the other end 64 of housing 61.
That is, the pump of Fig. 7 is made of the rotor 60 of stator 59 that is fixed in housing 61 and snake shape basically.On stator 59, two ends are that semicircular brachmorphy groove is cut to special double negative thread shape, along its inboard, while one the Double Ninth Festival shape of threads rotor 60 keep eccentric distance emm to carry out rotation, be rotated around the center of stator 59 simultaneously.But, since on stator 59 brachmorphy flute profile wall-forming, change in 0 ° place and to move up and down, change into side-to-side movement in 90 ° place of stator 59.That is, see rotor 60 from the front when anticlockwise two circles, ground-improving material advances in the gap 56 in stator 59, is imported in the not shown ascending pipe by conduit 10.
The relation of stator 59 and rotor 60 even it is inaccessible mobile all to export (outlet opening 65) effectively from entering the mouth at any position of rotation of per stage, and is successfully carried out continuous action.Like this, owing to flank meshes fully, when rotor 60 rotations, just in time piston extrudes and not pulsation along a direction in unlimited cylinder at leisure, even stator 59 adopts any section, its liquid measure equates that also discharge rate keeps certain frequently corresponding to rotary speed.Promptly, the advantage of snakelike pump is that (1) is continuous force feed structure, not only quiet but also not pulsation, (2) can guarantee the constant volume discharge corresponding to rotating speed, (3) can not transfer even there is valve system in the ground-improving material of high viscosity, high concentration, to sneak into bubble etc. yet, (4) change, stop, reversing owing to can instantaneously just finishing, therefore, can realize the interlock with automaton, replacing of (5) stator 59, rotor 60 is simple etc.
Aforesaid modular pump generally constitutes multi-joint dress injection device with 5～100 as one group, in one group with these modular pump horizontal strokes, vertical or three-dimensional the arrangement.These modular pumps are all respectively by the drive source start of motor etc.And, the rotating speed variable-speed motor start of the converter that each drive source is controlled by usefulness centralized management device etc.Therefore, the mode of shaking, being out of shape or scratching the district that need produce with the start that prevents by each drive source of the multi-joint dress injection device in equipment will independently many modular pumps supportings be configured on the supporting mass of pedestal, framework etc. or carries out integrated.
In the present invention, when will be for example modular pump 3 horizontal four, four of length directions, three ground supportings of short transverse of 30cm * 30cm * 0.2cm be arranged on the supporting mass of framework etc. or carry out integratedly, 48 pump unit can be become the multi-joint dress injection device 5 of minimum volume for 1.2m * 1.2m * 0.9m.Therefore, multi-joint dress injection device of the present invention is made of 48 pump unit, and its capacity is little as a whole, can compile the incorporate one group of injection device for compactness.Therefore one group of multi-joint dress injection device is when modular pump uses plunger displacement pump, and discharge pressure is being to be 1～7 liter/minute under 4～7MPa, the situation of discharge rate at 50HZ under the situation of 50HZ, and volume is 30cm * 30cm * 20cm, and volume is little.And, modular pump from outlet opening 7 with discharge rate (1～7 liter/minute) when by converter the decanting point of regulation being kept optimal injection rate, injection pressure, inject from the integral body of many outlet openings (for example 50 outlet openings) for the blanket management of scope of (1～7) * 50=50～350 liter/minute in full discharge rate by the centralized management chamber from the indication of central authorities centralized management chamber, soak between the particle that can carry out producing, and can realize shortening by the duration that brings of constructing rapidly by low pressure, low discharge rate.
Fig. 8 is to use the modular pump 3,3 that has kept A liquid suction part 3a and B liquid suction part 3b ... 3 flow chart of the present invention.In Fig. 8, ground-improving material hutch 2 uses A liquid case 2a and B liquid case 2b, and, modular pump 3 is except use has the modular pump 3 of A liquid suction part 3a and B liquid suction part 3b, remaining is identical with Fig. 1, this A liquid suction part 3a by conduit 9 and A liquid with case 2a be connected, this B liquid suction part 3b passes through conduit 9 and is connected with case 2b with B liquid.Modular pump 3 so that from the common drive source 4 of the mode of the A of A liquid suction part 3a and B liquid suction part 3b, flow that B liquid becomes certain proportion and regulation and 25 starts of rotating speed variable-speed motor in separately A liquid, B liquid.
Apparatus of the present invention of stating in the use are from a plurality of decanting points 6,6 of ground ... when 6 outlet opening 7 multiple spots by ascending pipe 8 inject foundation material, to pass through each modular pump 3,3 of multi-joint assembling device 5 from the A liquid of case 2a, from the B liquid of case 2b respectively ... 3 import ascending pipe 8,8 respectively ... 8 and collaborate, hydraulic fluid is injected into a plurality of decanting points 6,6 of ground 1 simultaneously ... in 6.
Fig. 9 and Figure 10 are respectively the flow charts of the additional embodiments of device of the present invention, have ground-improving material hutch 2, multi-joint dress injection device 5, a plurality of ascending pipe 8 basically.Ground-improving material hutch 2 is made of with case 2b with case 2a and B liquid A liquid, becomes the structure that the A liquid in these casees and B liquid is directed into ascending pipe 8 respectively and make its interflow.In Fig. 9, behind A liquid and B liquid usefulness conduit 10 interflow, to collaborate hydraulic pressure and deliver to ascending pipe 8, be injected into decanting point 6 from outlet opening 7, relative therewith, in Figure 10, decanting point 6 at ground 1 sets 2 decanting points 8,8, distinguishes force feed A liquid and B liquid in these 2 ascending pipe 8,8, after being injected into decanting point 6 from outlet opening 7, and interflow in ground 1, make its reaction or inject dissimilar improvement materials, both differences in this with having the time difference simultaneously or.At this moment, also can be located at respectively on the other ascending pipe 6 of partition distance by 2 ascending pipes 8,8, to ground 1, inject A liquid, B liquid from each outlet opening 7, in ground with these A liquid and B liquid interflow and make its reaction.
Multi-joint dress injection device 5 has independently many modular pumps 3,3 in an equipment ... 3, and these modular pumps 3,3 ... 3 respectively with the independently drive source 4 of motor etc. by a centralized management device 26 as one group of injection device start together, and by conduit 9,9 ... 9 are connected with case 2b with case 2a and B liquid with A liquid.These modular pumps 3,3 ... 3 with more than five groups as the transversely arranged multi-joint dress of Fig. 9 and ground shown in Figure 10, but also can be arranged as vertical arrangement not shown in the figures.In addition, as these modular pumps 3,3 ... 3 object lesson use Fig. 3 and plunger displacement pump 11 shown in Figure 4 or the diaphragm pump of Fig. 5, the extrusion pump of Fig. 6, the snakelike pump of Fig. 7 etc.
Ascending pipe 8 has outlet opening 7 at its front end, with its many a plurality of decanting points 6,6 that are embedded to ground ... in 6, respectively with the modular pump 3,3 that communicates with A liquid case 2a ... 3 reach the modular pump 3,3 that communicates with B liquid case 2b ... 3 connect.
And, above-mentioned independently many modular pumps 3,3 ... 3 have rotating speed variable- speed motor 25,25 respectively ... 25.These rotating speed variable- speed motors 25,25 ... 25 are connected (dotting in the drawings), controlled with centralized management device 26 respectively.This result, ground-improving material A among A liquid usefulness case 2a and the B liquid usefulness case 2b, B liquid are because each modular pump 3,3 ... 3 start and with the interflow of injection rate arbitrarily, be pressed to each ascending pipe 8,8 by conduit 10 ... 8, from each outlet opening 7,7 ... 7 multiple spots inject ground 1.This multiple spot injects and also can inject as Fig. 9 and shown in Figure 10 outlet opening 7 is provided with on in-plane.In addition, also as described later Figure 12, shown in Figure 13 outlet opening 7 is arranged on the diverse location on the depth direction.
As Fig. 9 and shown in Figure 10, with ascending pipe 8,8 ... 8, for example from modular pump 3,3 ... 3 with ascending pipe 8,8 ... 8 conduits that communicate 10,10 ... flow pressure detector 27 is being set respectively on 10.Among Fig. 9 and Figure 10, as with dashed lines is represented, be sent in the centralized management device 26 from the flow and/or the pressure data signal of these detector 27 detected ground-improving materials.And, as shown in figure 10, monitor the injection situation with the injection monitor 29 of injection management device 26 blanketly, simultaneously with ground-improving material from many modular pumps 3,3 independently ... 3 are injected into a plurality of decanting points in the ground 1 by a plurality of ascending pipe 8 multiple spots.
Many modular pumps 3,3 ... 3 action according to the flow of the ground-improving material of delivering to centralized management device 26 and/or pressure data signal by rotating speed variable-speed motor 25 and controlled.Because this control, ground-improving material is retained as desirable pressure and/or flow, is sent to each ascending pipe 8,8 ... 8.
In addition, to deliver to centralized management device 26 from the flow and/or the pressure data signal of flow pressure detector 27 detected ground-improving materials, these data are by on the injection monitor 29 that is presented at injection management device 26 with drawing, inject the blanket supervision of situation, on one side the scope that other injection pressure of the branch in the ascending pipe 8 and/or flow is maintained regulation is injected on one side, and injects according to above-mentioned data message and to finish, end, to continue or to reinject.In Fig. 9 and Figure 10, the 28th, the valve of transfer valve, stop valve, return valve etc. as shown in figure 10, also can be connected valve 28 and control with centralized management device 26.(Fig. 8 too).
On injection monitor 29 " the injection data " of " place data ", the injection pressure of the hole numbering of " time data ", the injection group No. of demonstration injection year, month, day, injection length etc., injection hole, decanting point etc., flow (unit interval flow or integrated flow) etc., and in centralized management device 26, write down these injection data.Like this, according to dividing other ascending pipe 8,8 ... 8 injection situation is the most suitably controlled and a plurality of ascending pipes 8,8 ... the 8 many modular pumps that communicate 3,3 ... the action of each modular pump of 3, and, these modular pumps 3,3 can be managed uniformly ... 3.Figure 11 is blanket 10 ascending pipes 8,8 that monitor ... 8 separately pressure flows, an example of integrated flow, in the present invention, ascending pipe 8 also can replace Y font pipe bar to use the ascending pipe, single tube etc. of bimetallic tube pull and stretch tube side formula.In addition, among Figure 10, the 30th, construction display panel, the 31st, daily paper apparatus for work.
Figure 12 is the key diagram of the another object lesson of multiple spot ground injection device of the present invention, at first by sleeve pipe not shown in the figures etc. ground 1 is cut the hole and forms decanting point 6.Underfill sealants 32 and insert a plurality of ascending pipes 8,8 in this decanting point 6 ... 8.These ascending pipes 8,8 ... 8 is respectively that diameter for example is the tubule of number mm, is provided with the outlet opening 7,7 of front end of the one way valve of rubber bush not shown in the figures etc.. 7 be in axial mutual different position, the position that deepens successively, for example become to dark position in turn from shallow position 7-1,7-2 ... 7-i ground is by colligation.And the aggregate 33 of the ground injection material of storage bin 2 by conduit 9, modular pump, conduit 10, flow pressure detector 27 are from each ascending pipe 8,8 ... 8 outlet opening 7,7 ... in 7 decanting points 6 that are injected in the ground 1.Each modular pump basis in the aggregate 33 of modular pump is from the information of flow pressure detector 27, by the indication control from centralized management device 26.
When underfill sealants 32, also can be at a plurality of tubules 8,8 ... each outlet opening 7,7 of 8 ... not shown one way valve is set on 7, from outlet opening 7,7 ... 7 inject before the ground-improving materials, underfill sealants (curing materials) in the gap of ascending pipe 8 and ground 1 and form encapsulant 32.One way valve uses rubber bush, bolt etc.
Tubule also can be the tubule group that has one way valve on its front end outlet opening 7 with 2 as one group, and these tubule groups are pricked knot in the different in the axial direction mode in the position of outlet opening.When using such tubule group, A liquid and B liquid respectively from each tubule liquor charging, are made two liquid interflow at the front end outlet opening, can inject the short improvement material of gelation time thus, and, also can improve the injection of material with the filling of encapsulant 32 continuously.
In the device of the Figure 12 that is configured in this wise, the ground-improving material of hutch 2 by conduit 9, modular pump aggregate 32 and conduit 10, through flow pressure detector 27 from each ascending pipe 8,8 ... 8 outlet opening 7-1,7-2 ... 7-i simultaneously or be discharged from the amount of regulation selectively, destroy the sealing mortar of decanting point 6, be injected into ball base shape in the ground 1 of prescribed depth.
Figure 13 be expression use the multiple spot injection device A same with Fig. 1 (Figure 13 a), ascending pipe 8 be with ascending pipe 8 buried decanting point 6 that is set to the first injection group, the second injection group shown in Figure 13 (b) of the same several formations of tubule colligation of Figure 12, side by side or the example that injects selectively.Ascending pipe 8 among Figure 13 (a) is expressed as T with tubule respectively
11, T
12T
1i, T
1nT
21, T
22T
2i, T
2nT
I1, T
I2T
Ii, T
InT
N1, T
N2T
Ni, T
NnWith these tubules shown in Figure 13 (b) with its T
11, T
21T
I1, T
N1The front end outlet opening be positioned at first stratum, with its T
12, T
22T
I2, T
N2The front end outlet opening be positioned at second stratum, with T
1i, T
2iT
Ii, T
NiThe front end outlet opening be positioned at i stratum, with T
1n, T
2nT
In, T
NnThe front end outlet opening mode that is arranged in n stratum bury ground 1 underground.
In Figure 13, from a plurality of conduits 10,10 ... the flow of 10 flow pressure detector 27 detected ground-improving materials and/or the data of pressure are delivered to centralized management device 26, are injected the blanket supervision of situation by the demonstration of the record of data and drawing and carry out injection management.
General alluvial water level land stagnates and is amassing, and therefore, the coefficient of permeability of horizontal direction is bigger than the coefficient of permeability of vertical direction.Therefore, in Figure 13, the soil layer of the first order all is identical coefficient of permeability near any outlet opening, for example is middle sand.In addition, even the soil layer of N stratum also is identical coefficient of permeability near any outlet opening, for example be fine sand.When injecting, at first use N root ascending pipe T
11～T
N1In first stratum, inject simultaneously, then be injected into N stratum from second stratum.In Figure 13, after the injection of the first injection group finishes, transfer to the second injection group.The N root of I stratum injects situation as shown in figure 11 by injecting the monitor unified management, and is controlled in the mode of each of each ascending pipe being carried out optimal injection.
In the present invention, drive each modular pump by the drive source of independent motors respectively etc., the rotating speed variable-speed motor by centralized management device control change device etc. carries out start with integrated modular pump as one group of multi-joint dress injection device thus.And this multi-joint dress injection device can at random be managed the injection of each ascending pipe respectively according to the injection situation of many ascending pipes.That is, this multi-joint dress injection device be have the ascending pipe that not only carries out many (N roots) injection integral body management and also manage the device of function of the injection of each ascending pipe best.In device of the present invention, when injecting, the discharge rate that for example discharge rate of every unit is 0～5 liter/minute, each organizes multi-joint dress injection device be 0～5 liter * n=0～5 * n liter/minute, when the quantity of modular pump is n=30, be the 5n=150 liter/minute.
As previously discussed, because multiple spot implantation method for ground foundation construction of the present invention has used and has had the independently multi-joint dress injection device of many modular pumps, therefore, can to every layer of ground inequality of foundation situation for these layer while of each in each layer or carry out optimal injection selectively, and can be in ground vertically, laterally carry out three-dimensional injection.
In addition, multiple spot ground injection device of the present invention is the device with multi-joint dress injection device, owing to be device with many modular pumps as described above, therefore can be with amount arbitrarily, the velocity of discharge is simultaneously or inject ground-improving material arbitrarily selectively arbitrarily, can carry out optimal injection to every layer for every layer of all different ground of each layer of foundation situation, also shorten the injection duration.
And, the present invention can not cause ground destroy ground with for example every bit be below 1 liter～several liters/minute, particularly 1～7 liter/minute variable discharge rate is soaked into injection in fine soil layer, improved the reliability of soaking into injection in fine soil layer, also can come the reduction of erection time simultaneously by the construction rapidly of 50～350 liters of per minutes.
In addition, can carry out gel time arbitrarily in the process that A liquid, B liquid interflow are injected to each outlet opening by the discharge rate that changes A liquid, B liquid, and, when overflowing, also can only interrupt its ascending pipe, continue unchangeably from other the injection former state of many ascending pipes.In addition,, can select outlet opening ground to carry out the injection that secondary injects, therefore, can to full ground, carry out uniform low pressure like that according to design ground from whole ascending pipes and soak into injection with other outlet opening as long as whole ascending pipes is arranged in the ground.
Claims (14)
1. multiple spot implantation method for ground foundation construction, be a plurality of decanting points that many ascending pipes with outlet opening are embedded in ground, inject ground-improving material by these ascending pipes from a plurality of outlet openings while multiple spots, it is characterized in that, use has by respectively independently drive source start and by the multi-joint dress injection device of many modular pumps of centralized management device control, this many pumps unit is connected with a plurality of ascending pipes by conduit, injects ground-improving material from a plurality of outlet openings by a plurality of decanting point multiple spots the ground by the start of above-mentioned many pumps unit.
2. multiple spot implantation method for ground foundation construction as claimed in claim 1 is characterized in that, the said units pump has the rotating speed variable-speed motor of being controlled by the centralized management device respectively.
3. multiple spot implantation method for ground foundation construction as claimed in claim 1 is characterized in that, each outlet opening of above-mentioned a plurality of ascending pipes is arranged on the different decanting point on the in-plane.
4. multiple spot implantation method for ground foundation construction as claimed in claim 1 is characterized in that, each outlet opening of above-mentioned a plurality of ascending pipes is arranged on the different decanting point on the depth direction.
5. multiple spot implantation method for ground foundation construction as claimed in claim 1, it is characterized in that, with conduit that above-mentioned a plurality of ascending pipes are communicated with on the flow pressure detector is set, to deliver to the centralized management device from the flow of the detected ground-improving material of this detector and/or the signal of pressure data, according to this information with ground-improving material from the outlet opening multiple spot of above-mentioned each modular pump by a plurality of ascending pipes is injected into a plurality of decanting points the ground.
6. multiple spot implantation method for ground foundation construction as claimed in claim 5, it is characterized in that, above-mentioned each modular pump has respectively by the rotating speed variable-speed motor with the centralized management device control of injecting monitor, according to from the detected data-signal start of flow pressure detector rotating speed variable-speed motor, ground-improving material is delivered to each ascending pipe with remaining desirable pressure and/or flow.
7. multiple spot implantation method for ground foundation construction as claimed in claim 5, it is characterized in that, by being presented on the injection monitor with drawing from the flow of the detected ground-improving material of above-mentioned flow pressure detector and/or the signal of pressure data, inject the blanket supervision of situation, on one side the scope that each injection pressure in the ascending pipe and/or flow are maintained regulation is injected on one side, finishes, ends, continues or reinject according to what the information of above-mentioned data was injected simultaneously.
8. multiple spot ground injection device is characterized in that, has ground-improving material hutch, multi-joint dress injection device and many ascending pipes; This multi-joint dress injection device has in an equipment by distinguishing independently drive source start and being connected by many modular pumps of centralized management device control and with above-mentioned holding vessel; These many ascending pipes have outlet opening, are embedded in a plurality of decanting points of ground, are connected with above-mentioned each modular pump by conduit respectively; And, on above-mentioned independently many modular pumps, has the rotating speed variable-speed motor of controlling by the centralized management device respectively, in addition, on above-mentioned conduit, be provided with the flow pressure detector, to deliver to the centralized management device from the flow of above-mentioned flow pressure detector and/or the signal of pressure data thus, with injection rate, injection pressure or injection rate arbitrarily the ground-improving material in the above-mentioned case is sent to each ascending pipe by the start of each modular pump, side by side is injected into the ground from a plurality of outlet opening multiple spots.
9. multiple spot ground injection device as claimed in claim 8 is characterized in that, the said units pump is plunger displacement pump, diaphragm pump, extrusion pump or snakelike pump.
10. multiple spot ground injection device as claimed in claim 8 is characterized in that, above-mentioned multi-joint dress injection device be by transversely arranged, vertically arrange or the many modular pumps of three-dimensional arrangement more than five groups form.
11. multiple spot ground injection device as claimed in claim 10 is characterized in that, many modular pumps are arranged or integrally are being arranged by supporting mass supporting, so that prevent by shaking of causing of many drive sources, distortion or deflection.
12. multiple spot ground injection device as claimed in claim 8, it is characterized in that, by delivering on the injection monitor from the flow of the detected ground-improving material of above-mentioned flow pressure detector and/or the signal of pressure data, on one side with the blanket injection situation that monitors of the injection monitor of injection management device, on one side ground-improving material is injected into by a plurality of ascending pipe multiple spots in a plurality of decanting points the ground from many modular pumps independently.
13. multiple spot ground injection device as claimed in claim 8, it is characterized in that, according to flow and/or the above-mentioned rotation variable-speed motor of pressure data signal controlling of delivering to ground-improving material in the centralized management device, thus, with desirable pressure and/or flow ground-improving material is delivered to each ascending pipe.
14. multiple spot ground injection device as claimed in claim 8, it is characterized in that, by being sent to the centralized management device from the flow of the detected ground-improving material of above-mentioned flow pressure detector and/or the signal of pressure data, and be presented at these data on the injection monitor of injection management device with drawing, inject the blanket supervision of situation, on one side the scope that each injection pressure in the ascending pipe and/or flow are maintained regulation is injected on one side, finishes, ends, continues or reinject according to what the information of above-mentioned data was injected simultaneously.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP029458/2002 | 2002-02-06 | ||
| JP2002029458A JP3724644B2 (en) | 2002-02-06 | 2002-02-06 | Multi-point ground injection method and equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1436900A true CN1436900A (en) | 2003-08-20 |
| CN1223734C CN1223734C (en) | 2005-10-19 |
Family
ID=27654700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031023320A Expired - Fee Related CN1223734C (en) | 2002-02-06 | 2003-01-30 | Multi-point foundation injection construction method and equipment |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3724644B2 (en) |
| KR (1) | KR100516949B1 (en) |
| CN (1) | CN1223734C (en) |
| TW (1) | TW591161B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109183773A (en) * | 2018-10-29 | 2019-01-11 | 开普天（上海）岩土科技有限公司 | Ground soil improvement construction method |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4783066B2 (en) * | 2005-06-13 | 2011-09-28 | 大成建設株式会社 | Injection method |
| JP4583263B2 (en) * | 2005-07-11 | 2010-11-17 | 株式会社大林組 | Chemical injection pipe and chemical injection method |
| JP4696200B2 (en) * | 2009-02-12 | 2011-06-08 | 強化土株式会社 | Ground injection method |
| KR100941916B1 (en) * | 2009-04-06 | 2010-02-11 | 문동춘 | Multi-point restoration grouting system |
| JP4948563B2 (en) * | 2009-05-19 | 2012-06-06 | 強化土エンジニヤリング株式会社 | Injection method and injection equipment |
| JP2011074591A (en) * | 2009-09-29 | 2011-04-14 | Kyokado Kk | Grouting pipe and grouting method |
| JP4737332B2 (en) * | 2009-10-01 | 2011-07-27 | 強化土株式会社 | Ground improvement method and ground improvement equipment |
| KR101143538B1 (en) * | 2009-10-22 | 2012-05-09 | 문동춘 | Multi-point restoration grouting system |
| JP4848553B2 (en) * | 2009-12-22 | 2011-12-28 | 強化土株式会社 | Injection pipe device and injection method |
| JP4830050B1 (en) * | 2011-01-19 | 2011-12-07 | 強化土株式会社 | Injection material manufacturing apparatus, injection material manufacturing method, and injection material injection method |
| JP2012082676A (en) * | 2011-04-11 | 2012-04-26 | Takenaka Komuten Co Ltd | Displacement controlling method |
| KR101183927B1 (en) | 2011-04-12 | 2012-09-18 | 김길용 | Repair agent infusion system of ground and strukture repair construction for construction structure |
| JP4754658B2 (en) * | 2011-04-18 | 2011-08-24 | 強化土株式会社 | Ground improvement method and ground improvement equipment |
| JP5017488B1 (en) * | 2011-08-29 | 2012-09-05 | 強化土株式会社 | Ground injection device and ground injection method |
| KR101213448B1 (en) | 2012-05-14 | 2012-12-18 | 강종호 | the quantitative evenly multi-distributed supply in the process of pumping low fluidity viscoplastic mortar grout |
| JP6312365B2 (en) * | 2013-03-22 | 2018-04-18 | デンカ株式会社 | Ground injection method |
| JP5433890B1 (en) * | 2013-06-19 | 2014-03-05 | 強化土株式会社 | Unsaturated ground improvement method |
| JP5789286B2 (en) * | 2013-08-16 | 2015-10-07 | 有限会社シモダ技術研究所 | Grout pumping device and method |
| NZ721038A (en) | 2013-12-16 | 2018-10-26 | Heisei Techno’S Co Ltd | Ground improvement method |
| KR101546497B1 (en) * | 2014-12-22 | 2015-08-24 | 주식회사 엠티마스타 | Ground reinforcement method |
| JP6405289B2 (en) * | 2015-07-09 | 2018-10-17 | 東急建設株式会社 | Chemical injection method |
| JP6433069B2 (en) * | 2015-07-21 | 2018-12-05 | 株式会社不動テトラ | Ground buried board and method of using the same |
| JP6539532B2 (en) * | 2015-07-24 | 2019-07-03 | 株式会社竹中工務店 | Ground improvement body construction method, ground improvement device and ground improvement bottom |
| CN106903788A (en) * | 2017-02-15 | 2017-06-30 | 广东工业大学 | A kind of multi-functional provisions for grouting and its control method |
| KR101927909B1 (en) * | 2017-12-26 | 2018-12-12 | 씨에스지오텍 주식회사 | An automatic control method a grout liquid chemical injection using plural pipe |
| KR102106150B1 (en) * | 2018-11-14 | 2020-05-04 | 한국철도기술연구원 | Rapid construction method and equipment for reinforcing roadbed and restoring slab settlement in earthwork transitional zone of railway or roadway |
| JP6867662B1 (en) * | 2020-09-10 | 2021-05-12 | 株式会社 地巧社 | Multi-stage simultaneous injection device |
-
2002
- 2002-02-06 JP JP2002029458A patent/JP3724644B2/en not_active Expired - Lifetime
-
2003
- 2003-01-22 TW TW092101380A patent/TW591161B/en not_active IP Right Cessation
- 2003-01-30 CN CNB031023320A patent/CN1223734C/en not_active Expired - Fee Related
- 2003-02-05 KR KR10-2003-0007267A patent/KR100516949B1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109183773A (en) * | 2018-10-29 | 2019-01-11 | 开普天（上海）岩土科技有限公司 | Ground soil improvement construction method |
| CN109183773B (en) * | 2018-10-29 | 2021-08-27 | 开普天（上海）岩土科技有限公司 | Construction method for improving foundation soil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1223734C (en) | 2005-10-19 |
| JP3724644B2 (en) | 2005-12-07 |
| KR20030067530A (en) | 2003-08-14 |
| TW591161B (en) | 2004-06-11 |
| JP2003232030A (en) | 2003-08-19 |
| TW200302896A (en) | 2003-08-16 |
| KR100516949B1 (en) | 2005-09-26 |
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