CN1603669A - Pushing technique capable of reducing friction around pipe - Google Patents
Pushing technique capable of reducing friction around pipe Download PDFInfo
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- CN1603669A CN1603669A CN 200310118510 CN200310118510A CN1603669A CN 1603669 A CN1603669 A CN 1603669A CN 200310118510 CN200310118510 CN 200310118510 CN 200310118510 A CN200310118510 A CN 200310118510A CN 1603669 A CN1603669 A CN 1603669A
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- sliding material
- pipe part
- pipe
- reduces friction
- friction around
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Abstract
The invetion provides propulsion technique for smoothing the propulsion of a drilling device and a pipe member by delivering an optimum amount of unguent into a tail void even when fluid pressure in the tail void is changed with the collapse of a natural ground. The propulsion technique comprises drilling a shaft 1, using a propelling jack 5 for delivering the drilling body 3 and the pipe member 4 from the peripheral wall of the shaft 1, and drilling a side pit 2 in which the pipe member 4 is arranged. The unguent is delivered between the natural ground 16 and the outer periphery of the pipe member 4 during propulsion of the pipe member 4. The delivery of the unguent is controlled on the basis of the pushing speed of the propelling jack 5.
Description
Technical field
The present invention relates to when reducing friction around pipe, advance the pipe of sewage pipe etc., it is arranged at pushing technique in the ground.
Background technique
The propelling construction method is, offers Li Keng, from the perisporium in this upright hole, promotes to be provided with on the top pipe part of excavation portion with jack, at the rear of this pipe part, appends the promotion pipe part successively, and a plurality of pipe parts are set in adit simultaneously.
In this pushing technique, if owing to prolong the distance of the pipe part that is connected, then the outer circumferential face of this pipe part and the surface friction drag between the stratum increase, so such as, as No. 2842855 communique of Japan Patent (being called " existing example " below), sliding material export mouth from a plurality of outer circumferential faces that are arranged at pipe part with ring-type, by the supplier of liquid feed pump etc., sliding material is derived, so that reduce surface friction drag, thus, can successfully carry out the propelling of pipe part.
,,, use computer here, this derived quantity is adjusted control according to the derivation pressure of the sliding material of in the afterbody space that is formed between stratum and the pipe part, deriving from the derivation of the sliding material of this sliding material export mouth.
No. 2842855 communique of patent documentation 1 Japan Patent
Summary of the invention
But, when sliding material being exported in the afterbody space, if formation collapse, or producing situations such as obstruction at the position that is provided with of pressure transducer, the pressure of being measured in the afterbody space changes, and then stops with inadequate state in the derivation of sliding material in the afterbody space, can not the make smooth advances situation of pipe part of existence, thereby, in existing example, pipe part can not be set in the stratum well.
The invention provides, even the hydrodynamic pressure in the afterbody space is former because of caving in of stratum etc. thus situation about changing under, still the sliding material of optimal dose can be exported to the inside in afterbody space, thus, can successfully carry out the pushing technique of the propelling of excavating gear or pipe part.
With reference to the accompanying drawings, core content of the present invention is described.
The present invention relates to a kind of pushing technique that reduces friction around pipe, in this worker's method, offer upright hole 1, perisporium from this upright hole 1, with advancing jack 5, send into digging body 3 and pipe part 4, offer adit 2, pipe part 4 is arranged in this adit 2, it is characterized in that, in the process of propulsion tube parts 4, sliding material is exported between the peripheral part of stratum 16 and this pipe part 4, driving velocity with propelling jack 5 is a benchmark, and the derived quantity of this sliding material is controlled.
In addition, relate to the pushing technique that reduces friction around pipe, according to the described pushing technique that reduces friction around pipe of claim 1, it is characterized in that, pipe part 4 adopts the pipe part 4 of the derivation of carrying out sliding material, or the pipe part 4 that does not carry out the derivation of sliding material.
In addition, relate to the pushing technique that reduces friction around pipe, according to the described pushing technique that reduces friction around pipe of claim 2, it is characterized in that, sliding material is derived from the sliding material export mouth 7 on the pipe part 4 that is arranged at the derivation of carrying out sliding material with ring-type.
Also relate to the pushing technique that reduces friction around pipe, according to the described pushing technique that reduces friction around pipe of claim 3, it is characterized in that sliding material export mouth 7 is provided with valve 9, by this valve 9, adjust the derived quantity of sliding material from sliding material export mouth 7.
Moreover, relate to the pushing technique that reduces friction around pipe, according to the described pushing technique that reduces friction around pipe of claim 3, it is characterized in that, on sliding material export mouth 7, be provided with injection pump 11, by this injection pump 11, adjust the derived quantity of sliding material from sliding material export mouth 7.
In addition, relate to the pushing technique that reduces friction around pipe, according to any one the described pushing technique that reduces friction around pipe in the claim 1～5, it is characterized in that, be that the derived quantity of the sliding material controlled of benchmark is meant the derived quantity that the driving velocity of this propelling jack 5 of input in computer 18 calculates with the driving velocity that advances jack 5.
In addition, relate to the pushing technique that reduces friction around pipe, according to the described pushing technique that reduces friction around pipe of claim 6, it is characterized in that, sliding material supplies in the pipe part 4 by supply pump 19, and this supply pump 19 is controlled by aforementioned calculation machine 18.
Also relate to the pushing technique that reduces friction around pipe, according to any one the described pushing technique that reduces friction around pipe in the claim 1～5,, it is characterized in that pipe part 4 adopts the pipe part 4 that is provided with the shank 13 that can give prominence to/return at peripheral part.
Moreover, relate to the pushing technique that reduces friction around pipe,, it is characterized in that pipe part 4 adopts the pipe part 4 that is provided with the shank 13 that can give prominence to/return at peripheral part according to the described pushing technique that reduces friction around pipe of claim 6.
In addition, relate to the pushing technique that reduces friction around pipe, according to the described pushing technique that reduces friction around pipe of claim 7, it is characterized in that, pipe part 4 adopts the pipe part 4 that is provided with the shank 13 that can give prominence to/return at peripheral part.
In addition, relate to the pushing technique that reduces friction around pipe, according to the described pushing technique that reduces friction around pipe of claim 8, it is characterized in that, above-mentioned shank 13 is arranged on this rotation ring-shaped member 14 of the pipe part 4A with rotation ring-shaped member 14.
Also relate to the pushing technique that reduces friction around pipe, according to the described pushing technique that reduces friction around pipe of claim 9, it is characterized in that, above-mentioned shank 13 is arranged on this rotation ring-shaped member 14 of the pipe part 4A with rotation ring-shaped member 14.
Moreover, relate to the pushing technique that reduces friction around pipe,, it is characterized in that above-mentioned shank 13 is arranged on this rotation ring-shaped member 14 of the pipe part 4A with rotation ring-shaped member 14 according to the described pushing technique that reduces friction around pipe of claim 10.
In the present invention, owing to be not the pressure by sliding material only, derived quantity to sliding material is controlled, but because according to the driving velocity of the propelling jack of propulsion tube parts etc., an amount of sliding material is exported between stratum and the pipe part 4, so such as, in the stratum, advance digging body and pipe part during, even in situations such as generation formation collapses, export under the situation of variation in pressure of the sliding material between this stratum and the pipe part, the derived quantity deficiency because of this sliding material does not still take place, and situation that can not the propulsion tube parts etc., therefore, can successfully realize the propelling of pipe part 4 grades.
Description of drawings
Fig. 1 is the explanatory drawing of whole compositions (central authorities' control) of expression embodiment 1;
Fig. 2 is the explanation oblique drawing of the pipe part of expression embodiment's 1 derivation sliding material;
Fig. 3 is for expression is different from the pipe part of Fig. 2 of embodiment 1, carries out the explanation oblique drawing of pipe part of the derivation of sliding material;
Fig. 4 does not carry out the explanation oblique drawing of pipe part of derivation of embodiment 1 sliding material for expression;
Fig. 5 is for expression is different from the pipe part of Fig. 4 of embodiment 1, do not carry out the explanation oblique drawing of pipe part of the derivation of sliding material;
Fig. 6 is the explanatory drawing of the operating principle of expression embodiment's 1 shank;
Fig. 7 is the amplification explanation sectional view of the operating principle of expression embodiment's 1 shank;
Fig. 8 is the explanation sectional view of the operating principle of the outstanding/back body of expression embodiment's 1 the rotating machinery of rotary annular part and shank;
Fig. 9 is the explanation sectional view of the operating principle of the outstanding/back body of expression embodiment's 1 the rotating machinery of rotary annular part and shank;
Figure 10 is the explanation sectional view of the operating principle of the outstanding/back body of expression embodiment's 1 the rotating machinery of rotary annular part and shank;
Figure 11 mixes the explanatory drawing of the enforcement state of worker's method for expression embodiment's 1 pipe week;
Figure 12 forms the explanatory drawing of (central authorities' control) for expression embodiment's 2 integral body;
Figure 13 forms the explanatory drawing of (decentralized control) for expression embodiment's 3 integral body.
The explanation of symbol
1 upright hole
2 adits
3 digging bodies
4 pipe parts
The 4A pipe part
5 advance jack
7 sliding material export mouths
9 valves
11 injection pumps
12 afterbody spaces
13 shanks
14 rotary annular parts
16 stratum
17 pressure transducers
18 computers
19 supply pumps
Embodiment
Below with reference to the accompanying drawings, according to the mode that provides action effect, simply to thinking that preferred embodiments of the present invention are described.
Such as, if advance jack 5 to promote pipe part 4 with bigger driving velocity, then pipe part 4 is followed this action, advances with bigger speed.
At this moment, if export to the quantity not sufficient of the sliding material between the peripheral part of stratum and pipe part 4, promptly, if the derivation speed of this sliding material is unable to catch up with the fltting speed of pipe part 4, then the sliding material of q.s can't be exported between the peripheral part of stratum 16 and pipe part 4, thus, surface friction drag is alleviated, therefore, can not successfully advance digging body 3 and pipe part 4.
In this regard, the present invention makes derived quantity bigger to should situation being controlled to when the driving velocity that advances jack 5 is very fast, in addition, when this driving velocity is slow, makes derived quantity less to should situation being controlled to.
Thereby, owing to the driving velocity with propelling jack 5 is that benchmark is controlled, make the amount of the sliding material of between the peripheral part of stratum 16 and pipe part 4, deriving suitable, so can successfully advance digging body 3 and pipe part 4 by the effect of this sliding material.
Because the present invention makes in above-mentioned mode, so such as, though in stratum 16, advance digging body 3 and pipe part 4 during, because of situations such as stratum 16 cave in, and export to the variation in pressure of the sliding material between this stratum 16 and the pipe part 4, still can realize the propelling smoothly of pipe part 4 grades.
Embodiment 1
Below with reference to the accompanying drawings, embodiments of the invention 1 are described.
Embodiment 1 relates to pushing technique, in the method, offers upright hole 1, from the perisporium in this upright hole 1, with advancing jack 5, imports digging body 3 and pipe part 4, offers adit 2, and pipe part 4 is provided with on this adit 2; In the drive-in step of pipe part 4, (below be called " afterbody space 12 ") derives sliding material between the peripheral part of stratum 16 and this pipe part 4, is benchmark with the driving velocity that advances jack 5, and the derived quantity of this sliding material is controlled.
In addition, in embodiment 1, adopt that to be undertaken with the driving velocity that advances jack 5 by computer be the method (central authorities' control) of control of the sliding material derived quantity of benchmark.
Promptly, as shown in Figure 1, on the propelling jack 5 that is arranged at upright hole 1, the velocity transducer 36 of the driving velocity (stroke) of measuring this propelling jack 5 is set, advance the action of jack 5 by this, with be arranged at adit 2 in the pipe part 4 that is connected of digging body 3 in, be provided for sliding material is supplied with the sliding material supply passage 8 of this pipe part 4, computer 18 is set on ground 37, this computer 18 is used for the driving velocity according to the propelling jack 5 of velocity transducer 36 mensuration, sets the sliding material amount that derives to afterbody space 12.In addition, on ground 37, supply pump 19 is set, this supply pump 19 is used for by sliding material supply passage 8, with sliding material supplying pipe parts 4.In addition, this supply pump 19 by aforementioned calculation machine 18, moves control as described later.
Digging body 3 adopts such as, shield machine (shield machine) etc.
The pipe part 4 that is connected with digging body 3 promotes by the action of above-mentioned propelling jack 5, at the rear portion of this pipe part 4, appends successively and promotes pipe part 4.
The pipe part 4 of realizing the derivation of sliding material adopts pipe part 4A with rotary annular part 14 and the pipe part 4B that does not have rotary annular part 14.
That is,, among the 4B, a plurality of sliding material export mouths 7 that are used for the sliding material derivation are set at pipe part 4A.
Specifically, shown in Figure 3 as Fig. 2 among the 4B at pipe part 4A, a plurality of sliding material export mouths 7 are with the ring-type setting.The purpose that sliding material export mouth 7 is set with ring-type is not have the peripheral part that omission ground exports to sliding material pipe part 4.That is, because the sliding material export mouth 7 by being provided with ring-type evenly is filled in the whole periphery of pipe part 4 with sliding material, well so can realize the good propelling of pipe part 4.
The pipe part 4 of not realizing the derivation of sliding material adopts the pipe part 4C (with reference to Fig. 4) that is provided with sliding material export mouth 7, with the pipe part 4D (with reference to Fig. 5) that is not provided with sliding material export mouth 7.
In this pipe part 4C, as shown in Figure 4,2 positions at the length direction of pipe part 4C are provided with sliding material export mouth 7.In addition, the sliding material export mouth 7 of pipe part 4C both can be provided with on a position, also can be provided with on the position more than 2.
That is, when using pipe part 4C, do not realize the derivation of sliding material from sliding material export mouth 7.In addition, also can as required sliding material be derived from the sliding material export mouth 7 of pipe part 4C.That is, pipe part 4C also can be used as the pipe part 4 of deriving above-mentioned sliding material.
In embodiment 1, to make as shown in Figure 1, the rear at the pipe part 4A (or pipe part 4B) that derives sliding material is connected with the structure that does not derive the pipe part of sliding material 4D (or 4C).
In addition, pipe part 4A, 4B, the quantity of the sliding material export mouth 7 of 4C is suitably set according to the situation of the soil property on the size of pipe part 4 and stratum 16 etc.
On the sliding material export mouth 7 of the pipe part 4 of the derivation that realizes sliding material, valve 9 is set.By this valve 9, adjust the derived quantity of sliding material from sliding material export mouth 7.In addition, in the present embodiment, in the later figure of Fig. 2, omit the diagram of valve 9.
In embodiment 1, valve 9 adopts the mortor operated valve 9 that moves by energising.In addition, in embodiment 1, valve 9 has adopted mortor operated valve 9, still, also can adopt solenoid valve.In addition, also can adopt,, also can adopt, the hydrovalve that moves by hydraulic pressure as hydrovalve by the valve that air moves as cylinder valve.
This mortor operated valve 9 is arranged on the distribution circuit 10 (distribution piping 10), and this distribution circuit 10 is supplied with each sliding material export mouth 7 from as sliding material supply passage 8 (the sliding material supplying pipe 8) branch that is responsible for sliding material.In addition, sliding material supply passage 8 and distribution circuit 10 be by pipe arrangement, or formation such as flexible pipe.
This mortor operated valve 9 constitutes like this, that is, computer 18 is calculated signal according to the driving velocity that is input to the propelling jack 5 in the computer 18 by velocity transducer 36, according to this signal, carry out compulsory exercise, adjust from the amount of the sliding material of sliding material export mouth 7 derivation.
That is, mortor operated valve 9 carries out the open and close controlling of timing, sequence of movement, opening degree, opening time etc. according to the signal from computer 18.
In addition, in Fig. 1, in order to be more prone to watch drawing, the connecting line (signaling line) that connects computer 18 and mortor operated valve 9 is arranged at outside the pipe, still, in fact, is arranged at the inside of pipe part 4.
In the pipe part 4 of the derivation that does not realize sliding material, be provided with the pressure transducer 17 that is used to measure the pressure in the afterbody space 12.
That is, be provided with on the pipe part 4C under the situation of pressure transducer 17, setting in advance on the sliding material export mouth 7 on this pipe part 4C, this pressure transducer 17 is being set.
Thus, owing to utilize the hole of having established, pressure transducer 17 is set, so can not offer the hole that pressure transducer is set in addition, cost is lower.
In addition,, be provided with under the situation of pressure transducer 17, offer the hole that is used to set pressure transducer 17, pressure transducer 17 is set in this hole not having on the pipe part 4D of sliding material export mouth 7.
That is,, utilize this hole, pressure transducer is set, on perforated pipe parts (non-perforated pipe) not, offer the hole, in this hole, pressure transducer is set having on the pipe part in hole (perforated pipe).
In addition, pressure transducer 17 also can not be arranged at the sliding material export mouth 7 of pipe part 4, and is arranged at the outer circumferential surface section of pipe part 4.That is, such as, also can on the outer circumferential face of the pipe part 4D that does not have sliding material export mouth 7, pressure transducer 17 be set.In this case, the connecting line (lead etc.) of pressure transducer 17 work also can be drawn by linking the collar (the joint collar etc.).
Therefore, in embodiment 1, can by the computer 18 on ground 37, calculate the suitable sliding material amount that in the afterbody space, derives according to the pressure in driving velocity that advances jack 5 and the afterbody space 12.
That is, because embodiment 1 can be when the sliding material in checking afterbody space 12 be derived state, can be according to the driving velocity that advances jack 5, it is an amount of making sliding material, so can realize the propelling more smoothly of digging body 3 and pipe part 4.
At the peripheral part of pipe part 4, shank 13 is set in the mode that can give prominence to/return.
In embodiment 1, at pipe part 4A, the peripheral part of 4B is provided with shank 13 in the mode that can give prominence to/return.
The shank 13 of pipe part 4A is arranged on the rotary annular part 14.Thereby, by when making 14 rotations of rotary annular part, with sliding material from sliding material export mouth 7, export in the afterbody space 12, at the whole peripheral part formation sliding material of pipe part 4 and the mixing layer of soil, (pipe week is mixed worker's method) can be more successfully carried out in the propelling of digging body 3 and pipe part 4.
Fig. 2 is located in the figure of the pipe part 4A between the pipe part 4D shown in Figure 5 for expression.On this pipe part 4A, be provided with the rotation ring-shaped article 14 of this pipe part 4A rotation relatively, in this rotation ring-shaped article 14, offer sliding material export mouth 7, and be provided with the shank 13 that realization give prominence to/is return with ring-type.That is, rotate other pipe parts rotations that ring-shaped article 14 is arranged to be connected with pipe part 4 relatively.
In addition, in Fig. 2～Figure 10, omitted and be used for sliding material is exported to mechanism outside the pipe part 4.
Fig. 6, the operating principle of outstanding/back body of 7 expression shanks 13 forms following structure, and wherein, shank 13 adopts screw rods, and this screw rod is spirally connected with female thread portion 15 on the inner face that is arranged at pipe part 4.
Fig. 8, the rotating machinery of 9,10 expression rotary annular parts 14 and the operating principle (being different from above-mentioned Fig. 6, the outstanding/back body of the outstanding/back body of 7 shank 13) of outstanding/back body.
On the inner face of pipe part 4D, be fixed with assembly 20, on the bearing 21 on the top (upper end of Fig. 8) of this assembly 20, be fixed with axle 22 with embedded mode.
In the centre of this assembly 20, first drive motor 23 is set, on the live axle 21 of this first drive motor 23, be provided with small gear 24.
Rotary annular part 14 rotatably is embedded on this pipe part 4A, and the lower end that is embedded in the swing member 25 on the above-mentioned axle 22 is fixed on this rotary annular part 14.
In the centre of swing member 25, be fixed with the formation rack tooth, semicircular in shape, the tooth bar 26 that the cross section is L-shaped, this tooth bar 26 and 24 engagements of above-mentioned small gear.
In addition, the left side in Fig. 8 of swing member 25 is provided with assembly 27, inside at this assembly 27, rotatably be provided with shank 13, the hole 38 of the top of shank 13 from be opened in rotary annular part 14, outstanding towards the outside of rotary annular part 14.Cardinal extremity (upside among Figure 10) at this shank 13 is fixed with umbrella gear 28, and in addition, the 2nd drive motor 30 that is provided with the umbrella gear 29 that meshes with this umbrella gear 28 is set on the assembly 27.
In addition, at the cardinal extremity (upside among Figure 10) of shank 13, be provided with the bar 31 ' of cylinder assembly (Cylindermeans) 31.
Symbol 32 expressions pass to shank 13 with the slip of bar 31 ', but the rotation of shank 13 are not passed to the connecting part of bar 31 '.
Because Fig. 8, the rotating machinery of the rotary annular part 14 shown in 9,10 and the outstanding/back body of shank 13 are said structure, so if 23 actions of the 1st drive motor, then small gear 24 rotations, this action is followed in tooth bar 26 swings, swing member 25 swings, therefore, the 14 relative pipe part 4A rotations (in addition, rotary annular part 14 relative pipe part 4A can only rotate to 180 °) of rotary annular part.
In addition, if 30 action of the 2nd drive motor, then because umbrella gear 29 would rotate umbrella gear 28 rotations, so shank 13 rotations, and then the bar 31 ' of cylinder assembly 31 slides, thus, shank 13 slides, and therefore, shank 13 is realized give prominence to/returning from the outside of rotary annular part 14.
Use each parts and each mechanism of above Fig. 2～Figure 10, as shown in figure 11,, can carry out good the setting of pipe part 4 by offering adit 2.
According to Figure 11, specifically describe below, using Fig. 6, under the situation of the shank 13 of 7 structure, the only outstanding suitable amount of this shank 13 is pressed into pipe part 4 in the adit.Because this shank 13 destroys the native sand (stratum 16) around the pipe part 4, so reduce the pressure of the suffered soil of pipe part 4, in addition, realize the native sand on peripheral stratum 16 and the mixing of sliding material, therefore, carry out the propelling of pipe part 4 grades well.
In addition, using Fig. 8,9, under the situation of the shank 13 of 10 structure, except with above-mentioned Fig. 6, beyond the 7 identical methods, if in the propelling of pipe part 4, advance the situation variation, then from sliding material export mouth 7, when sliding material is derived, by cylinder assembly 31, make shank 13 realize continuous outstanding/return, and by the 2nd drive motor 30, make shank 13 rotations, and then, by the 1st drive motor 23, make 14 rotations of rotary annular part, so that shank 13 relative pipe part 4A rotations.Because sliding material, make the propelling of pipe part 4 good, simultaneously by this shank 13, this effect of rotary annular part 14, stratum 16 (native sand) around the pipe part 4 is destroyed, and the density of the stratum 16 of the periphery of pipe part 4 (native sand) reduces, and makes the pressure relieve of the soil that pipe part 4 is subjected to, therefore, the propelling of pipe part 4 grades is carried out well.Promptly, by shank 13, the effect of rotary annular part 14 mixes the native sand on the stratum 16 on every side of sliding material and pipe part 4, periphery at pipe part 4, form the sliding material of predetermined thickness and the mixing layer of stratum 16 (native sand), this mixing layer is space more (loose), the less layer of pressure of soil, and be because of there being sliding material, the layer less with the frictional force of pipe part 4 thus, realized the good propelling of pipe part 4 grades.
In addition,, dilute because of underground water so prevent this sliding material because sliding material mixes with the native sand on stratum 16, or situation about spreading in the space of sliding material in soil.
Consequently, because the existence of shank 13, shank 13 outstanding/return, the rotation of rotary annular part 14, the native sand on the stratum 16 on every side of pipe part 4 is mixed with sliding material, so discharge the fastening pressure of the pipe part 4 that causes by stratum 16 (native sand), stop the outflow (scatter and disappear) of sliding material from this part (mixing layer).
In addition, owing to there is a shank 13, with the overhang of shank 13 the native sand and pipe part 4 formation one on surface of the pipe part 4 of thickness, the mobile situation so also prevent to follow the propelling of this pipe part 4.In this case, because can adjust the overhang of shank 13, so, can more positively stop the moving of native sand of the propelling of following this pipe part 4 according to the state on stratum 16 (native sand) around the pipe part 4 from pipe part 4.
In addition, the action of cylinder assembly 31 is not only carried out when the propelling situation of pipe part 4 is bad, and can be at regular intervals, action off and on.
Under situation about being provided with on the long distance, pipe part 4 folders of derivation that can be by not realizing sliding material are established the pipe part 4 of the derivation of a plurality of realization sliding materials at pipe part 4.In addition, in this case, a plurality of pressure transducers 17 can be set also.The pipe part 4 of the derivation that realizes sliding material also is set in addition, serially.
Thus, even being provided with under the situation of distance for long distance of pipe part 4, driving velocity that still can be by advancing jack 5 and with the pressure of pressure transducer 17 mensuration the two, be set in the optimal derived quantity of the peripheral part assigned position of the pipe part 4 that sets in the adit 2, derive sliding material, successfully advance this pipe part 4 etc.
In addition, the export mouth of slip arbitrarily 7 of each pipe part 4 can be controlled the sliding material amount simultaneously concurrently.
By computer 18, the sliding material derived quantity that computer 18 calculates is indicated to transducer 35, change the frequency of this transducer 35, thus, change the number of revolution of motor, by supply pump 19, in time supply with an amount of sliding material.That is,, make, derive an amount of sliding material from sliding material export mouth 7 by the computer 18 also action of may command supply pump 19.
In this case, the flow of the sliding material of measuring by the flowmeter 34 that is arranged on the sliding material supply passage 8 (sliding material supplying pipe 8) is input in the computer 18.And, the flow of the sliding material imported is accumulated calculating, store as data.
Under the excessive situation of the flow of the sliding material of having measured, analyze at sliding material supply passage 8 (sliding material supplying pipe 8), or whether produce leakage in the distribution circuit 10 (distribution piping 10) etc.At this moment, overstep the extreme limit at the flow of sliding material and under the excessive situation, stop the supply of sliding material.
Under the too small situation of the flow of the sliding material of having measured, analyze at sliding material supply passage 8 (sliding material supplying pipe 8), or whether produce obstruction in the distribution circuit 10 (distribution piping 10) etc.At this moment, overstep the extreme limit at the flow of sliding material and under the too small situation, stop the supply of sliding material.
In addition, by measuring the flow of sliding material, analyze whether normally action of mortor operated valve 9.
Below according to Fig. 1, embodiment 1 effect is described.
At first, if by advancing jack 5, promote pipe part 4, then velocity transducer 36 is measured the driving velocity that this advances jack 5, and this speed is input in the computer 18.
At this moment, be arranged at the pressure that the pressure transducer 17 on the pipe part 4B is measured in the afterbody space 12, this pressure also is input in the computer 18 simultaneously.
According to the driving velocity of the propelling jack of having imported 5 and the pressure in the afterbody space 12, computer 18 calculates should be from the optimal sliding material amount of sliding material export mouth 7 derivation.This sliding material amount is set at by advancing the action of jack 5, successfully advances the amount of digging body 3 and pipe part 4.
Should then send signal to mortor operated valve 9 from computer 18 from the sliding material amount of sliding material export mouth 7 derivation if set, according to this signal, mortor operated valve 9 is realized opening and closing, from this sliding material export mouth 7, the sliding material of deriving the derived quantity of above-mentioned setting.
Such as, certain at the driving velocity that advances jack 5, under the situation that the pressure in afterbody space 12 reduces,, the derived quantity of this sliding material is increased owing to demonstrate the derived quantity deficiency of sliding material towards afterbody space 12.
In addition, certain at the driving velocity that advances jack 5, under the situation that the pressure in afterbody space 12 increases, because it is too much towards the derived quantity in afterbody space 12 to demonstrate sliding material, so the derived quantity of this sliding material is reduced.
In addition, pressure in afterbody space 12 sharply increases, under the situation that ultimate pressure increases, if further carry out the derivation of sliding material, then owing to there is sliding material supply passage 8 (sliding material supplying pipe 8), or damaged possibility such as distribution circuit 10 (distribution piping 10), so stop the derivation of sliding material.In this case, after the derivation that stops sliding material, when the pressure in afterbody space 12 is reduced to certain pressure, begin the derivation of sliding material once more.
Because embodiment 1 as mentioned above, not the pressure by sliding material only, derived quantity to sliding material is controlled, but according to the driving velocity of the propelling jack that pipe part 4 grades are advanced, an amount of sliding material is exported between stratum and the pipe part 4, so such as, even with digging body and pipe part the stratum advance during, situations such as formation collapse take place, export under the situation that the pressure of the sliding material between this stratum and the pipe part changes, the derived quantity deficiency because of this sliding material does not still take place, the situation that pipe part etc. can't advance, therefore, can successfully realize the propelling of pipe part 4 grades.
In addition, owing on the pipe part 4 of the importing that realizes sliding material, a plurality of sliding material export mouths 7 are set, do not omit the whole peripheral part (that is, the afterbody space 12) that ground exports to sliding material pipe part 4 so can have with ring-type.
In addition,, mortor operated valve 9 is controlled, sliding material is derived from sliding material export mouth 7, so can suitably carry out with the derivation of sliding material from this sliding material export mouth 7 owing to pass through the indication of computer 18.
That is, because by computer 18, the switching of mortor operated valve 9 is with optimal timing, opening degree, and sequence of movement, opening time carries out, thus can optimal timing, really mortor operated valve 9 is operated, the sliding material of optimal dose is exported to 12 inside, afterbody space.
Also have, the switching of mortor operated valve 9 is carried out respectively, still, whole mortor operated valves is moved uniformly.In addition, mortor operated valve 9 is at each sliding material export mouth 7, be arranged on the distribution circuit 10 (distribution piping 10), but, also can be arranged at the just preceding sliding material supply passage 8 (sliding material supplying pipe 8) of distribution piping 10, that is the branch part of sliding material supply passage 8 (sliding material supplying pipe 8) and distribution circuit 10 (distribution piping 10).
Have again, owing to can when measuring the pressure in the afterbody space 12, sliding material be derived, bear the breakage of pipe part 4 grades that excessive pressure causes so can prevent peripheral part because of pipe part 4 by pressure transducer 17.
In addition, owing to can in the pressure in measuring afterbody space 12, carry out the derivation of sliding material, so can avoid such as, the situation of the hose fracture that is connected with supply pump 19.
In addition,, then can utilize existing sliding material export mouth 7, therefore, also can not offer the hole that pressure transducer is set, so cost is lower if pressure transducer 17 is arranged on the sliding material export mouth 7 of pipe part 4C.
Also have and since a plurality of pressure transducers 17 can pipe part 4 set the direction setting, so can more correctly measure the pressure in afterbody space 12.
Have again, owing to shank 13 is set on the peripheral part of pipe part 4 in the mode that can give prominence to/return, and, on pipe part 4A, setting is this pipe part 4A relatively, realizes the rotary annular part 14 of rotation, so can make the sliding material of derivation be positioned evenly over the peripheral part of pipe part 4A really, thus, can realize making smooth advances of pipe part 4 grades really.
In addition, be provided with under the situation of a plurality of pipe parts 4 in (on long distance) on the rear of digging body 3, as above-mentioned, the pipe part 4 of the derivation by a plurality of realization sliding materials are set, can well sliding material evenly be arranged at the peripheral part of pipe part 4, can realize really advancing smoothly.
In addition, pipe part 4 also can adopt and link the collar (the joint collar.The steel collar particularly).
That is, the mechanism of deriving the sliding material on the pipe part 4 be arranged at embodiment 1 also can be arranged in the same old way and link on the collar.
In this case, the above-mentioned export agency to the sliding material in afterbody space 12 of computer 18 control can be used as easy scheme provides.In addition, both can in propelling, also can after finishing, make full use of as the steel collar in the same old way.
Also have, in embodiment 1, adopted the structure that connects the pipe part 4 of the derivation that does not realize sliding material at the rear of the pipe part 4 of the derivation that realizes sliding material, still, also can connect the pipe part 4 of the derivation that realizes sliding material.In this case, also can be such as, the rear connecting tube parts 4B of pipe part 4A, or pipe part 4A and pipe part 4B alternately are set.
Below with reference to the accompanying drawings, embodiments of the invention 2 are described.
That is, in embodiment 2, sliding material export mouth 7 places at the pipe part 4 of the derivation that realizes sliding material are provided with injection pump 11.
Specifically, injection pump 11 is arranged on the distribution circuit 10 (distribution piping 10), sliding material supply passage 8 (the sliding material supplying pipe 8) branch of this distribution circuit 10 from constitute being responsible for, and sliding material supplied to each sliding material export mouth 7.
In embodiment 2,, be provided with injection pump 11 at each sliding material export mouth 7 place.
This injection pump 11 is constituted as, and is input to the signal that the driving velocity of the propelling jack 5 in the computer 18 is calculated according to computer 18 usefulness by velocity transducer 36, carries out compulsory exercise,, adjust the derived quantity of sliding material from sliding material export mouth 7.In addition, the signal that aforementioned calculation machine 18 is calculated is meant, and is identical with embodiment 1, the sliding material of optimal dose can be exported to the signal of the peripheral part of pipe part 4.
That is, injection pump 11 is controlled the startup of this injection pump 11 and is stopped motor number of revolution, sequence of movement, actuation time according to the signal from computer 18.
In embodiment 2, identical with embodiment 1, by the computer 18 on ground 37, be set at optimal dose according to the amount of the sliding material of driving velocity that advances jack 5 and the inside that the pressure in the afterbody space will export to afterbody space 12.
Thus, can when the derivation state of the sliding material of the inside in subtend afterbody space 12 is checked,, derive an amount of sliding material, therefore, can more successfully realize the propelling of pipe part 4 grades according to the driving velocity that advances jack 5.In addition, it is low more to be set to afterbody space 12 pressure inside, and the sliding material of derivation is many more.
In addition, symbol 33 is illustrated in the inside of pipe part 4, the storage tank of the sliding material of interim storage established amount.In embodiment 2, storage tank 33 is set, but also can adopt this storage tank 33, can directly connect sliding material supply passage 8 (sliding material supplying pipe 8), supply with sliding material.
In addition, other aspect is identical with embodiment 1.
Because embodiment 2 as above-mentioned carrying out, so because can be according to the driving velocity of the propelling jack 5 of the pressure in afterbody space 12 and propulsion tube parts 4 etc., control by injection pump 11, with computer 18, the an amount of sliding material that pipe part 4 grades advance really well can be exported to the inside in afterbody space 12, therefore, can successfully realize the propelling of pipe part 4 grades.
Below with reference to the accompanying drawings, embodiments of the invention 3 are described.
Promptly, embodiment 3 is not by the signal from computer 18, mortor operated valve 9 on the sliding material export mouth 7 of the pipe part 4 that is arranged at the derivation of carrying out sliding material is carried out open and close controlling, and, (decentralized control) controlled in the action of this mortor operated valve 9 by signal from motion control device 39.
This sequencer 39 is set to timing according to the rules, sequence of movement, and opening degree, opening times etc. carry out open and close controlling to mortor operated valve 9.
Specifically,,, determine opening time (second unit), mortor operated valve 9 is controlled, inject sliding material successively at each sliding material export mouth 7 by sequencer 39.
Promptly, embodiment 3 is constituted as, according to the driving velocity that advances jack 5, supply pump 19 is controlled, thus, an amount of sliding material is supplied to the inside of pipe part 4, simultaneously by sequencer 39, open and close controlling to mortor operated valve 9 is stipulated thus, can export to an amount of sliding material the peripheral part of pipe part 4.
In addition, in embodiment 3, except the aspect that pressure transducer 17 is not set, other aspect is identical with embodiment 1.In addition, also can constitute like this, promptly, embodiment 1,2 is such for picture, and pressure transducer 17 is set on pipe part 4D, these two values of jack speed that pressure of being measured according to this pressure transducer 17 and velocity transducer 36 are measured, the sliding material of established amount is supplied to the inside of pipe part 4,, this sliding material of having supplied with is derived control by sequencer 39.
Because embodiment 3 carries out as described above, so according to the driving velocity that advances jack 5, supply pump 19 is moved control, to the inside of pipe part 4, supply with the sliding material of established amount, simultaneously according to signal from sequencer 39, mortor operated valve 9 is carried out open and close controlling, can be from sliding material export mouth 7, derive the sliding material of the established amount of the propelling that realizes pipe part 4 well, thereby embodiment 3 pushing technique that reduces friction around pipe of propulsion tube parts 4 etc. successfully.
In addition, the invention is not restricted to embodiment 1-3, the concrete structure of each constituent element can suitably design.
Claims (13)
1. pushing technique that reduces friction around pipe, in this worker's method, offer Li Keng, from the perisporium in this upright hole, by advancing jack, send into digging body and pipe part, offer adit, pipe part is arranged in this adit, it is characterized in that: in the drive-in step of pipe part, sliding material being exported between the peripheral part of stratum and this pipe part, is benchmark with the driving velocity that advances jack, and the derived quantity of this sliding material is controlled.
2. according to the described pushing technique that reduces friction around pipe of claim 1, it is characterized in that: pipe part adopts the pipe part of the derivation of carrying out sliding material, or the pipe part that does not carry out the derivation of sliding material.
3. according to the described pushing technique that reduces friction around pipe of claim 2, it is characterized in that: sliding material is derived from the sliding material export mouth on the pipe part that is arranged at the derivation of carrying out sliding material with ring-type.
4. according to the described pushing technique that reduces friction around pipe of claim 3, it is characterized in that: the sliding material export mouth is provided with valve, by this valve, adjusts the derived quantity of sliding material from the sliding material export mouth.
5. according to the described pushing technique that reduces friction around pipe of claim 3, it is characterized in that: on the sliding material export mouth, be provided with injection pump,, adjust the derived quantity of sliding material from the sliding material export mouth by this injection pump.
6. according to any one the described pushing technique that reduces friction around pipe in the claim 1～5, it is characterized in that: with the driving velocity that advances jack is that the derived quantity of the sliding material controlled of benchmark is meant the derived quantity that the driving velocity of this propelling jack of input in computer calculates.
7. according to the described pushing technique that reduces friction around pipe of claim 6, it is characterized in that: sliding material supplies to the inside of pipe part by supply pump, and this supply pump is controlled by the aforementioned calculation machine.
8. according to any one the described pushing technique that reduces friction around pipe in the claim 1～5, it is characterized in that: pipe part adopts the pipe part that is provided with the shank that can give prominence to/return at peripheral part.
9. according to the described pushing technique that reduces friction around pipe of claim 6, it is characterized in that: pipe part adopts the pipe part that is provided with the shank that can give prominence to/return at peripheral part.
10. according to the described pushing technique that reduces friction around pipe of claim 7, it is characterized in that: pipe part adopts the pipe part that is provided with the shank that can give prominence to/return at peripheral part.
11. according to the described pushing technique that reduces friction around pipe of claim 8, it is characterized in that: above-mentioned shank is arranged on this rotation ring-shaped member that has in the pipe part that rotates ring-shaped member.
12. according to the described pushing technique that reduces friction around pipe of claim 9, it is characterized in that: above-mentioned shank is arranged on this rotation ring-shaped member that has in the pipe part that rotates ring-shaped member.
13. according to the described pushing technique that reduces friction around pipe of claim 10, it is characterized in that: above-mentioned shank is arranged on this rotation ring-shaped member that has in the pipe part that rotates ring-shaped member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP342275/2003 | 2003-09-30 | ||
| JP2003342275A JP4330966B2 (en) | 2003-09-30 | 2003-09-30 | Propulsion method to reduce pipe circumference friction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1603669A true CN1603669A (en) | 2005-04-06 |
| CN100412432C CN100412432C (en) | 2008-08-20 |
Family
ID=34536612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101185100A Expired - Fee Related CN100412432C (en) | 2003-09-30 | 2003-12-11 | Pushing technique capable of reducing friction around pipe |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4330966B2 (en) |
| CN (1) | CN100412432C (en) |
| TW (1) | TWI276734B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101285387B (en) * | 2008-05-22 | 2010-06-16 | 清华大学 | Propelling plant for earth pressure balancing shield |
| CN109854814A (en) * | 2018-11-30 | 2019-06-07 | 福建建中建设科技股份有限公司 | A kind of jacking pipe structure and the method for jacking pipe structure periphery lubrication slip casting |
| CN112576812A (en) * | 2020-12-09 | 2021-03-30 | 中铁四局集团有限公司 | Large-diameter long-distance linear jacking pipe jacking method |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5916455B2 (en) * | 2012-03-22 | 2016-05-11 | 株式会社熊谷組 | Method for removing backfill material solidified on tail seal of shield machine and segment piece used for the removal method |
| CN104100273B (en) * | 2014-07-16 | 2016-04-20 | 同济大学 | A kind of reverse drag device of soil body longitudinal strain when reducing box culvert advancing |
| JP6339028B2 (en) * | 2015-01-29 | 2018-06-06 | Ｊｉｍテクノロジー株式会社 | Tunnel excavator |
| JP7402397B2 (en) | 2020-02-10 | 2023-12-21 | 日鉄鋼板株式会社 | Manufacturing method of painted metal plate |
| CN111425664A (en) * | 2020-03-27 | 2020-07-17 | 中铁四局集团第五工程有限公司 | Large-diameter concrete pipeline jacking pipe construction method |
| CN111692423B (en) * | 2020-05-13 | 2022-01-07 | 坝道工程医院(平舆) | Trenchless in-situ deviation rectification design construction method for jacking pipe |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1263464A (en) * | 1968-03-15 | 1972-02-09 | Hudswell Yates Dev Ltd | Improvements relating to the trenchless laying of underground pipes |
| US5482404A (en) * | 1993-07-27 | 1996-01-09 | Tenbusch, Ii; Albert A. | Underground pipe replacement technique |
| SE513654C2 (en) * | 1997-04-22 | 2000-10-16 | Forsheda Ab | Device for compression pipe with lubricant supply arranged at the pipe joints |
| CN2413120Y (en) * | 1999-11-09 | 2001-01-03 | 上海宝钢冶金建设公司 | Device for reducing friction drag between pipe wall and soil layer in top pipe construction |
| JP4287569B2 (en) * | 2000-03-31 | 2009-07-01 | 住友金属パイプエンジ株式会社 | Drilling rig |
-
2003
- 2003-09-30 JP JP2003342275A patent/JP4330966B2/en not_active Expired - Fee Related
- 2003-11-28 TW TW92133601A patent/TWI276734B/en not_active IP Right Cessation
- 2003-12-11 CN CNB2003101185100A patent/CN100412432C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101285387B (en) * | 2008-05-22 | 2010-06-16 | 清华大学 | Propelling plant for earth pressure balancing shield |
| CN109854814A (en) * | 2018-11-30 | 2019-06-07 | 福建建中建设科技股份有限公司 | A kind of jacking pipe structure and the method for jacking pipe structure periphery lubrication slip casting |
| CN109854814B (en) * | 2018-11-30 | 2024-04-19 | 福州庭佳建设工程有限公司 | Push pipe structure and peripheral lubrication grouting method thereof |
| CN112576812A (en) * | 2020-12-09 | 2021-03-30 | 中铁四局集团有限公司 | Large-diameter long-distance linear jacking pipe jacking method |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200512368A (en) | 2005-04-01 |
| JP4330966B2 (en) | 2009-09-16 |
| CN100412432C (en) | 2008-08-20 |
| JP2005105716A (en) | 2005-04-21 |
| TWI276734B (en) | 2007-03-21 |
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