JPS5985042A - Continuous vertical soil discharger - Google Patents

Abstract

PURPOSE:To continuously perform excavation work without the need to operate or stop of a soil and sand placer by moving the end chain pulley above the soil and sand discharge part correspondingly to the elongation of the chain along the guide strut of the soil and sand placer. CONSTITUTION:A guide strut 3 is driven into the ground surface 1, the surrounding of the strut 3 is excavated to a depth H1, and a soil and sand placer 4 is set on the level 1a while sliding it on the strut 3. A supporting structure 12 is erected on the ground surface, a soil and sand discharger 6 is horizontally set, surface soil A-C is excavated, and a hopper 4a is charged. The soil and sand go into a feeding container 8, drop onto a conveyer 6j from the chain 7 along the strut 3 and the soil and sand discharger 6, and are discharged from the left end of the conveyer 6j. In setting the soil and sand placer 4 at the level 1b, the elongation of the chain 7 along the strut 7 is changed correspondingly to moving of the end chain pulley 6a above the soil and sand discharger 6.

Description

Detailed Description of the Invention The present invention is a continuous vertical earth removal device that continuously excavates below the ground surface in vertical excavation work, especially large-scale vertical hole excavation, and continuously discharges the excavated soil to the ground surface. Concerning soil equipment.

Conventionally, packet elevators have been widely used in underground excavation work to transport excavated soil vertically to the surface, but these elevators have a lower earth loading section, a vertical transport section, and an upper earth discharge section assembled into an integrated structure using steel frames, etc. This is installed at the excavation site, and the excavated soil is loaded into the lower soil loading section and transported to the ground continuously by packets attached at regular intervals to a chain that rotates 1-1. The structure is such that the upper sediment discharge section is the discharge section. This structure of vertical conveying equipment is useful when horizontal excavation is being carried out at a depth of 2㎜, such as underground railway construction or sewerage construction, because it allows construction to continue without changing the equipment, but it is useful for large-scale structures. When excavating the ground to a great depth, such as in foundation work, a vertical conveyor section is added to the lower part of the ground as the ground is excavated.1. At the same time, the lower earth and sand loading section must also be relocated to the lower part. Conventionally, this replenishment involves temporarily suspending the vertical conveying section, removing the lower earth and sand loading section, and temporarily placing it in another location.
Methods such as adding the vertical conveying section structure and reattaching the lower earth and sand loading section have been used, which requires a large amount of labor and also causes a loss of labor, time, and increased construction costs due to interruptions in excavation work.

In order to solve these problems, the applicant of this patent filed a patent application filed in 1973.
A movable continuous vertical excavation and removal device such as No. 5-150561 was proposed.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a moving mechanism for a continuous vertical excavation and removal device according to the present invention will be described below with reference to the drawings. In Figure '1,
Reference numeral 1 indicates the ground surface at the excavation site, and first, a water-stop wall 2 is hidden around the excavation site in accordance with the geological conditions of the site in order to prevent water from springing as the ground is dug down. On the other hand, a guide post 3 is installed vertically in a position close to the water stop wall 2 with the column head protruding an appropriate length from the ground surface, but when excavation is carried out to the final depth, the guide post 3 becomes freestanding 1 -The excavation depth shall be deeper than the planned excavation depth. In this embodiment, as will be described later, in order to provide buckling strength, the guide column 3 is provided with a placing 3a as shown in FIG.
Two steel pipe piles 3b and 3c that are tied together are used.

Any suitable method can be used for this installation, but to avoid forced installation, a vertical hole 1-7 is drilled in advance using an earth auger, etc., and the guide column 3 is assembled with the two steel pipe piles 3b and 3c.
A method of inserting and burying the material hanging down is also selected. Next, a general excavator is used to dig around the guide post 3 and a small hole with a depth H1 is excavated in order to install the lower earth and sand loading section 4. This depth is set appropriately depending on the height of the hopper 4a of the lower earth and sand loading section 4 and the type of excavator used.
In the applicant's design example, approximately 8 m was considered appropriate.

Next, the lower earth and sand loading section 4 is installed on a pedestal 4b that can be guided up and down along the guide column 3. In this case, the position adjustment of the lower earth and sand loading section 4 is performed by sliding locking mechanisms 5a and 5 of the pedestal 4b.
After inserting and lowering the guide column 3 into the guide column 3 and positioning it at level /I/12 at the bottom of the hole of depth H□, the sliding locking mechanism 5a,
5b is locked to the guide column 3. On the other hand, on the ground surface, a support structure 12 is erected around the peripheral edge of the water stop wall 2 that was submerged earlier, and an upper earth and sand discharge section 6 is installed horizontally on this and the head end of the guide column 3, and a lower earth and sand loading section 4 Then, chains 7 . . . , transportation container 8 , etc. are attached to the transportation structure composed of the guide column 3 and the upper earth and sand discharge section 6 to assemble the transportation device. Here, the lower earth and sand loading section 4 transfers its weight to the guide column 3 by sliding locking mechanisms 5a and 5b.
Even if the ground at level 1a at the bottom of the hole is soft and uneven, the lower earth and sand loading section 4 can be installed without the need for foundation work. In this way, the front of the topsoil on the ground surface 1 is excavated using an appropriate excavator 7, and the excavation is carried out in the direction of arrow a to the hopper 4.
Insert into a. As the excavation progresses and the excavation level reaches B and C, the hopper is loaded in the directions of arrows A and C, and
The excavation and removal at level fat reaching the surrounding water stop wall 2 is completed.

Next, the lower earth and sand loading section 4 is raised to an appropriate height that allows the lower surface to be excavated by a method to be described later.
The bottom surface of the lower earth and sand loading section 4 is dug down to depth H2 in the same way as the first small hole was excavated, and the lower earth and sand loading section 4 is lowered and locked at this level 1b. At this time, the height of the temporary rise of the lower earth and sand loading section 4, and the digging depth H2 of the second small hole preparation are selected as appropriate depending on the type and performance of the excavation machine to be used, but the present application In the human design example, the temporary elevation height is 4 m1 and the above depth H2 is 6 m.
Since it has been recognized that it is appropriate to set the dimension to m, the following embodiments will be described based on this dimension.

Expansion and contraction of the chain length as the lower earth and sand loading section 4 slides up and down along the guide column 3 is handled by the movement of the end chain wheel 6a on the upper earth and sand discharge section 6.

That is, the end chain wheel 6a, which is driven by the prime mover 6b and rotates the chain 7..., is installed on the trolley 6C,
C is a prime mover 6 which is mounted on a rail 6d arranged in parallel on the upper surface of the upper earth and sand discharge part 6 and is fixedly installed at the left end of the upper earth and sand discharge part 6.
A chain 611 for moving the cart on both sides is wound around the chain wheel 6f which is driven in forward and reverse directions by e, and the chain wheel 6g fixed at the right end.
It can be towed to the left or right. During normal transportation, this trolley 6C is located at approximately the center of the upper earth and sand discharge section 6, and when the lower earth and sand loading section 4 is raised 4 m from the initial installation level = 6-, it follows this and moves from position D. When it is moved to position E, 4m to the left, and lowered 6m from the initial installation level, it is moved from position D to position F, 6m to the right, to keep the tension of chain 7 constant and prevent it from falling off from the chain wheel. prevent problems. When the lower earth and sand loading section 4 is lowered from the depth T-T to the level 1b at the depth H2, the sliding locking mechanisms 5a and 5 are lowered.
Lock L at b, and connect leg 1 of chain 7 in preparation for the next descent. and replenishment of the transport containers 8... As described later, the chain holding mechanism 9 attached to the upper part of the pedestal 4b of the lower earth and sand loading section 4 is used to hold the chain 7 on the scaffold 9a and cut it directly above the holding section, and then excavation Add 6 meters of chain to each chain 7 above the cut point.

Part 1. When the trolley 6C, which had been moved to the right end F position of the upper earth and sand discharge section 6, was returned to the E position 6 m to the left, the joint leg chain 12 was pulled up and its lower end was just cut and held. It can be easily engaged and connected to the upper end of the chain. As the chain is pulled up, additional conveyance containers 8 are sequentially attached. In this way, the next excavation and earth removal process is prepared in step 12, and the above-mentioned cycles are repeated in sequence to gradually dig down to a predetermined depth in steps 1 through 1. When the planned depth is reached, the excavation work is completed. Since the guide column 3 is driven deeper than the planned excavation depth, it remains independent at its last dimension even if the surrounding area is excavated.When the excavation work is completed, the guide column 3 is removed with a pulling device and the subsequent construction work is carried out. I do.

By the way, as shown in FIG. 1, a plate 16 is provided on a plurality of caterpillars 10, a traverser 11 is further provided on the plate 16, and a support 1 of the upper earth and sand discharge section 6 is mounted on the traverser 11.
2 will be provided. By moving the plurality of caterpillars 10, the entire upper dirt discharge section 6 can be moved to the next work site.

Movement by the caterpillar 10 can reduce costs compared to a movement method using rails.

Next, the chain holding mechanism 9 will be explained based on FIG. 4. The holding mechanism 9 has a cubic steel frame structure that is provided on the top of the pedestal 4b of the lower earth and sand loading section 4 to surround the chains 7. A screw column 9b is assembled in the chain scaffolding 9a and is erected between the upper and lower steel frames to face each other.

A pair of hangers 9d and 9d are supported by the screw columns 9c and 9c and slide up and down on the screw columns 9b, and both hangers 9d are supported by the four semicircular parts on the upper surface of the hangers. , 9d, and two to four bars 9f, 9f... depending on the number of parallel threads of the two receiving rods 9e, 9e and the chain 7..., which are wrapped around them. Three sets of chain holding mechanisms are provided corresponding to the parallel vertical portions of the chains 7 . When cutting or adding chain 7..., turn Natsu) 9C and 9C and hanger 9d.
, 9d, and insert bolts 9f into the gaps between the chain links as shown.

9c, 9cfr: When the bolts 9c, 9cfr: are slightly turned in the upward direction, the load of the chain below the bolts 9f, 9f... is supported by the chain holding mechanism 9,
Bolts 9f, 9f... Since the tension on the 9-chain closest to the top is significantly alleviated, the chain can be removed safely and easily. Dad, after adding the chain, turn the Nand 9C in the downward direction and the bolts 9F, 9
The load on f... is removed and the bolts 9f, 9
f... can be easily removed.

As described in detail above, the moving mechanism of the continuous excavation and earth removal device according to the present invention is similar to the conventional device, and during the construction period of the side wall provided inside the water stop wall 2 of the collapsed area, the operation of the earth and sand discharge section 6 is stopped. Since it is possible to avoid diseconomies in cycle time, the entire excavation process is carried out continuously and highly efficiently in an integrated structure, which helps shorten the construction period and reduce costs, especially in large-scale vertical excavation works. It embodies the following effect.

[Brief explanation of the drawing]

The drawings show an embodiment of the continuous vertical pressing method and device according to the present invention, FIG. 1 is a schematic side view illustrating the overall outline of the device and the method, and FIG. 2 shows the structure of the lower earth and sand loading section frame. 3 is a side view of the main parts of the sliding locking mechanism and a cross-sectional view taken along line X-X, FIG. 4 is a perspective view of the chain holding mechanism, and FIG. FIG. 3 is a schematic side view of the upper sediment discharge section. FIG. 6 is a schematic diagram of the moving mechanism for conceptually explaining the present moving mechanism. 3...Guide support 3b, 3c...Steel pipe pile 4.
...Lower earth and sand loading section 5a, 5b...Sliding locking mechanism 6...Upper earth and sand discharge section 6a...End chain wheel
6C... Trolley 7... Chain 8... Transport container 9... Chain holding mechanism 10... Caterpillar 11... Traverser 12... Support 13... Support 14... Support 15 ...Movement support device 16...Plate patent applicant Shingyo Kiko Co., Ltd. JP-A-59-85042 (5) Procedural amendment (method) 1. Indication of the case: Japanese Patent Application No. 57-193599 2, Title of the invention: Continuous vertical earth removal device 3, Person conducting the procedure Relationship with the case: Name of the patent applicant: Shingyo Kiko Co., Ltd. 4, Agent residence: Yamato, Itabashi-ku, Tokyo Town 14-15 No. 6, Subject of amendment (1) Application (2) Specification (3) Drawings (4) Document certifying power of attorney 7, Contents of amendment (1) As per attached sheet (4) As per attached sheet

Claims (1)

[Claims] An earth and sand loading part is arranged near the ground surface of a guide post driven to a predetermined depth in the ground7, and a earth and sand discharge part is provided near the upper open end of the guide pillar, and the earth and sand loading part, the guide support and the earth and sand discharge part are connected to each other. In a continuous vertical earth removal device, which is constructed of a conveyor system that can continuously move across each section to load, transport, and discharge earth and sand, an earth and sand discharge section located at least above the guide column. 1. A continuous vertical earth removal device, characterized in that: (1) the continuous vertical earth removal device is moved by a traveling device of its support separately and independently from other parts, and can be connected to a guide support at another excavation site.