JPH02501151A - Concrete pile vacuum removal equipment and method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Concrete Piling Vacuum Removal Apparatus and Method Awarded on December 5, 2013 Concrete concrete according to Patent No. 3.1!5 No. 814 and No. 3,85L1185 The present invention constitutes an improvement in the apparatus and method for striking.

Underground water during pouring of concrete according to the apparatus and method disclosed in the above patent. When encountering soft ground below the surface, the rate of penetration of the plow edge into the soft ground is controlled. Problems may occur if not controlled. This problem is caused by incomplete concrete. However, this difficulty can be overcome easily, effectively and economically. It is the main objective of the present invention to alleviate this problem in a practical manner.

To be more specific, a stake hammer is the type of penetration that occurs each time the hammer is struck. The amount is about 15 cm (6 inches) to 30 crrL (1 foot). If the hammer can be hit with a certain amount of force, it will collide with the hammer's hammer. At this point the plow edge is temporarily forced out from under the grout column above it. A gap is formed between the plow cutting edge and the grout column.

Such voids cannot actually exist because they are almost complete vacuums. The voids are caused by grouting from above or by soft surroundings adjacent to the concrete pile being formed. The vacuum must be filled instantaneously either in the ground or in some cases This tends to pull the surrounding soft ground into the void, which results in smaller pile diameters. become.

This whole problem can be solved by the present invention in soft ground below the groundwater table or in the aforementioned vacuum. Used to form concrete piles in other situations where formation may occur. This can be corrected simply by providing an effective vacuum relief device in the equipment being used. removed.

Another object of the invention is - the said follower even if present in the concrete pouring equipment. Successful use of said apparatus to form concrete piles according to the teachings of the prior patents Does not interfere with mode.

Other features and advantages of the invention will become apparent to those skilled in the art during the following detailed description.

Brief description of the drawing Figure 1 is a vertical sectional view of a partial schematic diagram of the equipment and method for pouring concrete in Ichijomai. − FIG. 2 shows an improved vacuum removal apparatus and method for pouring concrete according to the present invention. A similar view, FIG. 5, shows a button and a button assembled according to one embodiment of the invention The book elevation view of the bisuki cutting edge, Figure 4 is a horizontal sectional view taken along line key 4 in Figure 5. − FIG. 5 is a similar cross-sectional view taken along line 5--5 of FIG. FIG. 6 is a view similar to FIG. 4 showing different types of plow cutting edges.

FIG. 7 is a side view of the bushing and plow blade edge according to the second embodiment of the present invention. FIG. 8 is a horizontal cross-sectional view taken along line g-g in FIG. FIG. 9 is a portion showing a bushing and plow cutting edge according to another embodiment of the present invention. An exploded perspective view in section.

FIG. 10 is a partial side elevation view of the elements shown in FIG. 9 in assembled relation; FIG. 11 is a horizontal cross-sectional view taken along line 11-11 of FIG. FIG. 12 is a similar view taken along line 12-12 of FIG. FIG. 15 is a partially cut away perspective view showing another implementation of the present invention; FIG. 14 is a partial vertical sectional view of the device in FIG. 13.

FIG. 15 is a horizontal cross-sectional view taken along line 15--15 of FIG. 11i.

FIG. 16 shows a vacuum removal auger type pile driving device according to another embodiment of the present invention. Partial cross-section elevation view of the book shown. FIG. 17 is a detailed end elevation view of the apparatus shown in FIG. If you look closely at the drawings in which similar numbers represent similar parts, Figure 1 of Collection 1 is the same as above. 1 illustrates prior art essentially in accordance with the Stellading patent. Driving head 2 0 is connected to the driving head adapter 20A and the bushing 21, and the bushing 21 is joined at the lower end to a suitable plow cutting edge 22. Graft supply hopper 23 on the ground surface surrounds the bushing 21 and feeds the grout downward by gravity, and the pile driving hammer (not shown) Put it into the cavity 211.

As explained earlier, in soft ground below the water table, one strike with a hammer is enough. If the rate of penetration of the plow cutting edge 22 is not controlled, the plow cutting edge will be There is a tendency to create a gap 261 between the lout column and the lout column.

This void cannot remain empty due to the high degree of vacuum and must be grouted. Virtually instantaneously fill with soft soil adjacent to the equipment and the piles being driven. must be carried out.

As represented by numeral 27 in FIG. Since the soil can be pulled inward, the diameter of the hole immediately behind the plow edge 22 can be Effectively, the cross-sectional dimensions of concrete piles are reduced and concrete Make a piece incomplete.

FIG. 2 shows a complete solution according to the present invention of the prior art opening movement described in connection with FIG. It shows. In Fig. 2, the same driving head 20, grout hopper 25 and A plow cutting edge 22 can be used.

However, the bushing 28 according to the present invention has a vertically extending vacuum relief passage means 28. It differs from the conventional bushing 21 in that it has a plow blade edge 22. As it moves away from the grout column 25, the vacuum induced in the temporary void 26 becomes large. It is effective to remove the concretion as shown in Figure 1. The soft soil surrounding the trench can be pulled inward to reduce the cross-sectional dimension of the trench. I can't.

Figures 5 and 6 show the bushing 30 and the pegs connected to the insert as shown. 1 shows a first embodiment of the invention, including a cutting edge 31, in greater detail; Figures 1 and 2 The driving head 20 and grout hopper 23 shown in the figure are shown in FIG. Although omitted to facilitate solution, these components are as per Figures 3-6. Also used in methods and apparatus.

The plow cutting edge 31 is circular as shown, and the bushing 30 is a member with an H cross section.

Buttons 30 are welded to the web 32 on both sides of the central web 52 and attached to the web 32. and a shallow wreath-shaped member 35 that together form a pair of facing vacuum relief passages 31i. We are prepared. Similarly, a pair of miso welded to the outer surface of the side webs 36 of the butsusha. A shaped member 35 defines another pair of vacuum relief passages 37 in the longitudinal direction of the bushing. No. As shown in FIG. It terminates a short distance from a flange 38 near the top of the carrier. Therefore, The top of the channel 57 is located at the flange 5 so that the flange-shaped member 33 is also at the same height as the flange-shaped member 35. 8, so it is exposed to the atmosphere under flange 3B, similar to the top of passage 311. I understand. As shown by the dashed line in FIG. The ends also terminate slightly above the corresponding ends of the webs 36, thereby opening the ventilation passages 37 and and 3+4 communicate at their lower ends with the temporary cavity 26 of FIG. 3rd to 6th The configuration of the apparatus shown in the figure is similar to that disclosed in Figure 2, although shown in greater detail. is the same as The ventilation or vacuum removal passages 37 and 311 of the bushing 30 As shown in the figure, the soft soil surrounding the bush is pulled inward to remove the defective pile. The unique features of the present invention should be apparent to prevent the formation of As for the vacuum removal feature, the plow cutting edge 22 penetrates with each blow by the noma. Since there is no need to control the degree to which It can be used in the following applications.

Figure 6 shows that the plow cutting edge 31 has a square bottom plate instead of a circular bottom plate as shown in Figures 3 to 5. It shows the same device structure as shown in Figures 3 to 5 except that it has a plate 0. Ru.

Figures 7 and 88 show that bushings I11 are circumferentially distributed along their length. Side wall grout holes 42'i spaced apart in a staggered pattern in the vertical direction. 2 shows a second embodiment of the invention comprising a cylindrical tubular member; Multiple external vacuums An escape passage 145 is vertically welded to the surface of the bushing lj1, as shown in the figure. Miso-shaped members 1114 having opposite ends and equally spaced in the circumferential direction is formed by. The bushing 141 is co-located with the plow cutting edge I5 in Fig. 7. Used in the process of fully driving concrete.

9-12 show a cylindrical tubular bushing 46 with side wall holes 117 along its length. A number of vacuum relief passages 49' corresponding to the longitudinal direction of the bushing 46 are welded thereto. (+-Another modification of the invention in which an external flute-shaped member 118f is attached to form An example is shown. 10. Slightly above the lower end of the tubular bushing 46 in FIG. A circumferential ventilation passage 50 is shown in FIG. As can be seen, the vertical vacuum relief passageway 119 and directly near the lower end of the bushing 116 I understand. The wand-shaped members 118 communicate with the atmosphere at their upper and lower ends. . As in the previously described form of the invention, vacuum relief passageways 119 and 50 are shown in FIG. and the air gap 26 in FIG. It works to avoid pulling the surrounding soft soil inward.

13 to 15 show that the bushing 51 is located between the inner tube body 52 and the surrounding concentric outer tube 54. The entire circumferential spacing formed by the short sleeve sections 53 The inner pipe body 52f has grout inlet holes arranged in a staggered manner in the vertical direction! c. Here is yet another example of the equipment provided. Mass space between two tubes 52 and 54 55 is a vacuum relief passageway or passageway used in the embodiment of the present invention shown in FIGS. There are 2 aisles. Furthermore, the operation of the apparatus according to FIGS. The operation is the same as that of the previous embodiment.

16 and 17 show that the auger 56 is driven by means 57 to form the hole 5g. Another embodiment of the invention is an auger which is driven in rotation and raises the soil to the ground level by means of an auger. To illustrate an example: When the auger is retracted upward from the hole 5g, the bottom of the hole is inserted into the hole 58. 5 grouts are placed on the auger 56 to form a concrete pile from the top to the top. It is sent downward through the entire solid shaft tube 60. When the auger is pulled out from hole 5g A machine built under an auger that tends to produce problems similar to those shown in Figure 1. To eliminate voids, a vacuum relief passageway 61 extending longitudinally of the auger should be concentric with the tube 60. A box and a tube of 60 and an interval? Open end constituted by struts 63 spaced apart It is formed by a tube 62 that has become . Realized as a result of vacuum relief passage 61 The released dog point was realized by the vacuum escape passage described in the previous example. are essentially the same.

In some embodiments of the invention illustrated in FIGS. 5-15 of the drawings, the bushings are: When the process is complete, it is pulled out of a hole in the ground, and the plow edge is ．． No. 1!51, 14811 and No. 3. g51,485, Each of the embodiments of the present invention has the advantage that the grout remains buried in concrete at the bottom of the concrete. a ground penetrating device having vacuum relief passage means as well as passage means for The H-shaped cross-section bushing 30 is mounted on both sides of its central web 52 and on two side webs. A grout passage is provided between the grooves 36. By hole +42.4 completion and 53, Ko During the formation of the concrete pile, if the grout from the hopper 23 is outside the bushing 21? It can pass from the inside of the bushing 21 to the outside. Butsusha or o If the grout is pulled out, additional grout will be pumped into the hole and it will swell or swell. As it fills the space previously occupied by the auger, the height of the entire ground surface of the concrete pile is increased. Make sure that it forms completely.

The poetic form of the invention illustrated and explained in the Honmei Glaze Book should be taken as a preferred example of an invention. Various variations in shape, size and configuration of the parts may be made without departing from the spirit or spirit of the invention. It is understood that the invention may be used without departing from the scope of the appended claims. It should be· FIG13 FIG17 National investigation of crucian carp lost

Claims (23)

[Claims] 1. forming a substantially vertical hole in the ground below the surface of the ground; delivering grout into the hole to form the body of the concrete pile; and the vacuum that tends to develop in the hole before the grout is pumped into the hole. A method of placing concrete piles underground that involves venting the voids to the atmosphere. 2. The hole is removed by driving a pusher with a leading plow blade downward into the ground. forming the grout in the ground and applying the grout by gravity while the hole is being formed. A vacuum-formed void that contains the particles that are simultaneously ejected into the hole and is open to the atmosphere. is formed under the grout and between the grout and the plow cutting edge. How to put it on. 3. The hole in the ground is formed by digging the ground with an auger and the vacuum is A gap is created in said hole while the orifice is withdrawing the means from the hole, and the grout is The method of claim 1, wherein the method is delivered into a slot in a drawer. 4. Both the venting and the delivery of the grout are carried out through passages in the means. The method according to claim 1. 5. configured to penetrate the earth to form a substantially vertical borehole in the earth. a device for feeding the borehole made by said penetrating device downward into the borehole; means for grouting the device; and means for filling the device with grout; A device for placing concrete piles in the ground with vertical ventilation means extending to the end. 6. The device configured to penetrate into the ground includes a pusher, and a tip of the pusher. is equipped with a plow blade edge that has a slightly larger cross-sectional dimension than the pusher, and the ventilation means A vertical ventilation passage attached to the pusher and extending virtually from one end of the pusher to the other. Casting a concrete pile in the ground according to claim 5, comprising means for forming a concrete pile. Device. 7. A device configured to penetrate the ground includes an auger and includes a grout for drilling the borehole. said means for filling with grout comprises vertical grout passage means on an auger; 6. An underground conduit according to claim 5, wherein the air means comprises a vertical ventilation passage attached to an auger. A device for driving cleat piles. 8. The vertical grout passage and ventilation passage pass axially through the auger near its center. The apparatus for pouring concrete piles underground according to claim 7, comprising a concentric passage. . 9. The pusher is mounted along and on the walls of the H-section member and the H-section member. The underground concrete pipe according to claim 6, further comprising means for forming a ventilation passage. Equipment for pouring. 10. said pusher is tubular with spaced sidewall grout inlet holes; a member, the longitudinal ventilation passageway on the pusher being fixed to the exterior of the tubular member; 7. The underground concrete according to claim 6, further comprising at least one groove-shaped member. A device for placing piles. 11. a plurality of circumferentially spaced parts fixed to the exterior of the tubular member; The groove-shaped member and the current ventilation passage communicating with the inside of the groove-shaped member are connected to the groove-shaped member 11. The underground concrete pipe of claim 10, further comprising external forming means. Equipment for pouring. 12. the means for forming the annular ventilation passageway is located near the lower end of the tubular member; The apparatus for pouring concrete piles underground according to claim 11. 13. said pushers being a pair of spaced apart substantially concentrically connected tubes; 7. The tube according to claim 6, further comprising: elements, the spaces between the tube elements forming the longitudinal ventilation passage. A device for placing concrete piles underground. 14. A pile that penetrates the ground virtually vertically to form a receiving hole in the ground. a configured device and a groove filled with said hole filling material while the hole is being formed by said device. said device in the form of a ventilation passageway extending longitudinally of said device. Concrete pouring equipment equipped with vacuum relief means. 15. The means for filling the hole with a filler material is configured to penetrate into the earth. 15. The concrete according to claim 14, further comprising filler passage means within the apparatus. Towel pouring device. 16. a step of penetrating into the ground to form a pile receiving hole in the ground; delivering a flowable filler material into the hole to form a body of the material; , into the hole while forming the hole and delivering filler material into the hole. and removing a vacuum that tends to form. 17. By driving a pusher with a leading plow blade downward into the ground, The process of forming a hole in the ground below the surface and forming the body of the concrete pile in the hole. a step of delivering grout into said hole to form a grout; A vacuum that tends to develop in the hole formed between the tip and the plow edge. A method of placing concrete piles underground, including the step of allowing the walls to communicate with the atmosphere. 18. The method further includes the step of gravity delivering the grout into the hole while forming the hole. 18. The method according to claim 17. 19. underground below the ground surface by augering the ground to form a hole. Forming a hole in the hole, the vacuum that tends to develop in the hole while drawing the means from the hole When the grout is pumped into the hole between such drawers, , a method of placing concrete piles underground that includes venting to the atmosphere. 20. a device adapted to penetrate into the earth to form a borehole in the earth; flow into the borehole as it is formed through the borehole created by the penetration device. means for grouting and filling said device and said device substantially end to end; A device for pouring concrete piles into the ground with vertical ventilation means that extend up to the ground. 21. an auger adapted to penetrate into the earth to form a borehole; means for grouting said perforations; Provide vertical ventilation means along the auger to prevent formation when the auger is being removed. Ventilation to vent the vacuum void to allow grout to flow into the borehole A device for placing concrete piles into the ground, which is equipped with means. 22. A device adapted to penetrate underground to form a receiving hole that is difficult to penetrate underground. , means for simultaneously filling the hole with a filler material while forming the hole by the device; Vacuum relief means on said device in the form of a ventilation passage extending longitudinally of said device. Concrete pouring equipment equipped with. 23. A process of penetrating into the ground to form a receiving hole that is difficult to penetrate underground, and simultaneously delivering a flowable filler material into the hole to form a solid body; during the process, the simultaneous formation of the hole and the delivery of the filling material into said hole. Concrete pouring method that includes the process of removing the vacuum that is likely to occur.