JPH0468128A - Method for transferring construction surplus soil - Google Patents

Abstract

PURPOSE:To make it possible to send surplus soil directly to a landfill site through a pipeline by turning construction surplus soil discharged from a construction site into soil water. CONSTITUTION:Construction surplus soil 8 discharged from a construction site 1 is sent to a soil water treatment device 10 located adjacent an excavation region 3 of the site 1, where foreign matters are removed from the surplus soil and water is introduced from a landfill site 26 to prepare slurry having water content such that said slurry can be transferred by a pump. And the slurry is sent to the site 26 through a pipeline provided by utilizing a river 21 such as urban river near the site 1 to be discharged into the site 26. As a result, the surplus soil 8 discharged from the site 1 can be sent to the landfill site 26 independently of environmental conditions etc.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for transporting leftover soil in a construction method for creating a reclaimed land using leftover soil discharged from a construction site.

[Conventional technology]

In recent years, as the advanced use of underground space has been promoted, the size of underground buildings being constructed in urban areas has also increased, resulting in large amounts of construction waste.

Conventionally, such construction surplus soil is transported to a landfill site via transportation means such as a dump trunk on a boat to create a landfill site. For example, construction waste generated in urban areas near the waterfront is used for fishing boats and port reclamation.

This construction surplus soil is generally transported by dump trucks or barges.

[Problem to be solved by the invention]

i! by the above dump truck! ! Transport is always a convenient means when the environmental conditions are right. However, there are problems such as traffic congestion, noise, traffic accidents, dust, and the scattering of leftover soil, which has a major impact on the surrounding area.

In addition, if there is a large river next to the construction site, barges are suitable as a method of mass transportation.

However, it is only used in very special cases, due to factors such as the entry and departure of ships, river usage such as fishing, tidal differences, and environmental conditions such as bridges.

Furthermore, it is conceivable that construction waste soil could be transported to the burial site using a helt conveyor. However, when used in a workshop, all of them are temporary structures, so large leases for long-distance transportation have not been put into practical use. When newly manufactured, - the cost cannot be depreciated at the workshop.

Installation methods such as tidal differences, river crossings, bridges, and transshipment are difficult.

Long distances pose problems such as difficulty in management, and are rarely used.

The present invention was made in order to solve such conventional problems, and its purpose is to turn construction surplus soil into slurry so that it can be transported directly to the landfill site using a pipeline. The purpose of this project is to provide a method for transporting construction surplus soil.

[Failure to solve the problem]

The general transportation method for construction surplus soil according to claim 1 is a construction method in which construction surplus soil discharged from a construction site is generally transported to a landfill site, and the construction surplus soil is used to create a landfill site. The waste construction soil is turned into muddy water, and the muddy mud is transported to a landfill via a pipeline using pumps or other pressure-transfer means.

In the method for transporting construction surplus soil according to claim 2, construction surplus soil discharged from a construction site is turned into muddy water by water introduced from a river or a landfill.

In the general transportation method for construction surplus soil according to claim 3, a pipeline is laid using a river or port leading from a construction site to a landfill.

The 1# transportation method for construction surplus soil according to claim 4 is such that construction surplus soil discharged from a construction site is stored in a tank and turned into muddy water by adding water, and then transferred through a pipeline by a pressure-transfer means such as a pump. The waste is then transported to a landfill.

One method for general transportation of construction surplus soil according to claim 5 is to introduce water from a river or a landfill to a construction site, install a pump or other pressure-transfer means (nl The soil is turned into slurry, sucked out, and transported via pipeline to a landfill site.

[For production]

In the method for transporting construction surplus soil according to claims 1 to 5, construction surplus soil discharged from a construction site is turned into muddy water, and this muddy muddy soil is transported to a landfill site via a pipeline by a pressure-transfer means such as a pump. and can be discharged directly to a landfill.

In the method for transporting construction surplus soil according to claim 2, construction surplus soil discharged from a construction site is turned into muddy water by water introduced from a river or a landfill, and then transported through a pipeline by a pressure feeding means such as a pump. It can be transported to a landfill and discharged directly to the landfill.

In the method for transporting construction surplus soil according to claim 3, the muddy soil is directly transported from the construction site to the landfill by a pipeline that is laid using a river or coast that leads to the landfill, Can be discharged directly to landfill.

In the method for transporting construction surplus soil according to claim 4, construction surplus soil discharged from a construction site is stored in a tank, turned into slurry by adding water, and then transported via a pipeline by a pressure conveying means such as a pump. The waste can then be sent to a landfill and then released.

In the method for general transportation of construction surplus soil according to claim 5, water is introduced into the construction site from a river or a landfill, and water is not allowed to travel to the construction site using a vessel equipped with a pump or other means of pressure conveyance. ,
It is possible to turn earth and sand from a construction site into muddy water, absorb it, transport it via a pipeline to a landfill, and then release it.

[Example〕 Embodiments of the present invention will be described below based on the drawings.

FIGS. 1 and 2 illustrate a method for transporting construction surplus soil according to a first embodiment of the present invention.

In this embodiment, when the construction surplus 8 discharged from the construction site 1 is transported to the landfill 26, the construction surplus +8 is turned into muddy water with a water content of about 5 to 10%, for example, and then an electric pump (
The waste is transported to a landfill site 26 via a pipeline 27 by a pressure feeding means (such as a pump) 13.

First, construction site 1 will be explained. In this construction site I, an excavation area 3 is divided by a continuous wall 2. and,
It is covered with a lining plate 5 via the structural column 4, and a crumb crane 6 can be moved there. Also, in the excavation area 3, there is a pull) the 7, and the pull 1-
- Excavation work is being carried out by The 7.

The excavation work at the construction site 1 is carried out according to conventional methods, and no special considerations were made for this embodiment.

Next, the construction surplus soil 8 discharged from the excavation area 3 at the construction site 1 is transferred to the crumb crane 6.
A muddying device 1 installed adjacent to an excavation area 3 by
carried to 0.

For example, as shown in FIG. 3, the slurry forming device 10 includes a tank 11, a sieve (for example, grizzly, etc.) 2 placed on the tank 11 for removing foreign substances, and a An electric pump 13 with a small amount of water, a muddy water suction pipe 14 attached to this electric pump 13, a ladder to which this muddy water suction pipe I4 is attached [5], and a force provided at the tip of the muddy water suction pipe 1/l ( For example, high pressure injection device) 16 and tank 1
1, a water supply pipe 17 that introduces water in the landfill 26, a water level sensor 18 installed in the tank 11, and a water level sensor 18.
and a control device I9 that controls the pump l'la provided in the water supply pipe 17.

In this muddying equipment 10, as shown in FIG.
When the sediment is dropped onto the sieve 2 for removing foreign matter, vibration is applied by the high flake connected to the sieve 12, and the foreign matter and the removed soil are sent to the hopper 12 below.
The earth and sand fall toward the tank 11, and are vibrated by the high flakes connected to the hopper 12a, causing the earth and sand to fall in the direction of the tank 11, and to be deposited in the tank 11.

On the other hand, water in the landfill 26 is supplied into the tank 11 via the water supply pipe 17 by the pump 17a. When the construction residue 8 and water reach a predetermined amount, the electric pump 13 is activated, and the muddy water suction pipe 14 is inserted into the construction debris 8 via the ladder 15, and a cutter provided at the tip of the muddy water suction pipe 14 is inserted. 16 to disperse and mix the construction surplus soil 8 in water,
For example, it is muddy water with a water content of about 5 to 10%. and,
The construction residue 8 that has turned into muddy water is sucked up by an electric pump 13.

In addition, in this muddying device]0, the water level in the tank 11 is constantly monitored by the water level sensor 18, and the control device 19
The pump 1.7a is controlled by the pump 1.7a to keep the water level in the tank 11 constant. Water level sensor]
The signal No. 8 is also input to the electric pump 13, and the electric pump 13 is controlled to be driven when the water level reaches a predetermined level.

Furthermore, a sieve for removing contaminants and objects] 2 and an electric pump 1
3 are arranged on the rails 12b and 13al respectively,
This allows for free movement.

Moreover, the rail 1.3a of the electric pump 13 is the pedestal 13.
It is placed on b. Furthermore, sieve 12 and hopper 12
A is equipped with a high-pressure washing device so that cleaning can be done as needed.

As shown in the two series, the construction waste 8 turned into muddy water by the muddying device 10 is taken by the muddying device 10 and sent to a landfill 26 via a pipeline 27 (=jLJ).

This pipeline 27 is constructed by connecting a large number of sand discharge pipes 20, and for example, as shown in FIG. 1, by using the river 21 adjacent to the construction site 1, as shown in FIG. Float the sand discharge pipe 20 via the float 22,
It is placed halfway from the river mouth 24 to the port 25 by passing under the bridge 23 in the middle, and from the middle of the port 25 to the bottom of the port 25 as shown in Fig. 1, and again near the reclaimed land 26 as shown in Fig. 4. It is formed so that it floats.

A booster pump 28 is appropriately installed in the middle of this pipeline 27 to ensure the fastest possible flow of muddy water.

The muddy water thus pumped through the pipeline 27 is discharged at the landfill site 26, as shown in FIG.

For example, as shown in FIGS. 1 and 2, this reclaimed land 26 is surrounded by a revetment 29 and has a wastewater treatment tank 3 on the downstream side.
0 is provided, and by discharging muddy water to the landfill 26, overflow water is treated in the surplus water treatment tank 30, and the treated water is discharged. This surplus water treatment tank 30 performs appropriate treatment based on a comprehensive judgment of the properties of excavated soil, water content, the situation of the landfill, etc. 11 For example, it is equipped with a flocculation device, a sedimentation device, a filtration device, etc. has been done.

By repeating the above operations, the construction surplus soil 8 at the construction site 1 is transferred to the landfill 26 by the muddying device 10.
The muddy water is diluted with water to form muddy water with a water content of 5 to 10%, which is sucked by the electric pump 13 through the muddy water suction pipe 14 and pumped through the pipeline 27 to the landfill 26 .

As described above, according to this embodiment, the construction surplus soil 8 discharged at the construction site 1 is sent to the muddying device 10 located at a position adjacent to the excavation area 3 of the construction site 1. After removing impurities, the water in the landfill 26 is introduced and adjusted to muddy water with a moisture content that can be pumped using a pump. (=J) is transported to the landfill site 26 via the installed pipeline 27 and discharged into the landfill site 26.

Therefore, according to this embodiment, by simply installing the pipeline 27 by using the river 21 such as an urban river adjacent to the construction site 1, the construction surplus soil 8 discharged from the construction site 1 can be used.
For example, compared to conventional transportation such as Danblack or purge ships, traffic congestion is a problem.

It is not affected by environmental conditions such as noise, traffic accidents, dust, scattering of leftover soil, river usage conditions such as fishing rights of vessels entering and leaving the water, tidal differences, bridges, etc. can.

In the above embodiment, a case has been described in which water from the landfill 26 is introduced as water to be supplied to the slurry device 10, but it is also possible to introduce river 21 water or ground water near the construction site 1. It is possible to carry out muddy water treatment.

In addition, although we have explained the case where two booster pumps 28 are installed in the pipeline 27, the construction site 1
If the distance between the construction site 1 and the landfill site 26 is short, the booth coupon pump 28 can be omitted; conversely, if the distance between the construction site 1 and the landfill site 26 is long, the number of booster pumps 28 installed may be reduced. It is also possible to increase the number of devices and also incorporate a system to control them.

Furthermore, in the muddying process in the muddying device 10, a cutter 16 is provided so that the earth and sand can be sufficiently dispersed and mixed in the tank 11, but depending on the properties of the earth and sand,
It is also possible to omit this, or to provide auxiliary means (=J) to further enhance its function.

Furthermore, when the earth and sand are transported under pressure through the pipeline 26, equipment for injecting a chemical solution may be attached depending on the properties of the earth and sand.

Furthermore, as shown in FIG. 4, the pipeline 26 in the river 21 is laid in a floating state by a floater 22, but, for example, as shown in FIG. It is also possible. These can be appropriately selected according to the surrounding conditions through which the pipeline 26 passes.

Furthermore, although the crumb crane 6 was used to remove soil from the construction site 1, a Hakent crane or the like may also be used.

FIG. 6 shows a general transportation method for construction surplus soil according to the second embodiment of the present invention, in which excavation work at the construction site 1 and work to turn the excavated soil into muddy water are performed at the same time. It is something.

In this embodiment, water is introduced into the excavation area 3 surrounded by the continuous wall 2 through a water supply pipe 17 from a river 21, for example, and a boat 31 is installed therein with a pump 32.

Ladle) i31 includes the muddy water suction pipe 14 in the second embodiment.
A mud water suction pipe 33 having a similar function is provided, and a pipeline 27 is also attached.

Therefore, in this embodiment, the earth and sand in the excavation area 3 are directly excavated with the muddy water suction pipe 33 attached to the ship 31, and the earth and sand are separated from the water by a cutting tool such as a cutter installed at the tip of the mud water suction pipe 33. Mixing can take place and the mud can be transported via pipeline 27 to a landfill.

In this embodiment, a ship 3 that also serves as a muddying device is installed in the excavation site 1.
1, there is no need to install a slurry device as in the above embodiment.

In addition, this embodiment is characterized in that the treatment is carried out by putting a ship 31 which also serves as a muddying device into the excavation site 1, and the other configurations, operations, devices, etc. are the same as those in the first embodiment described above. Similar to the example.

As described above, in this embodiment, depending on the conditions of the excavated soil, underground construction plan, reclaimed land, etc., it is possible to inject water into the continuous wall (mountain retaining wall or structural wall) 2 to accommodate the ship 31. is the preferred method.

Note that the water level in this embodiment is determined by monitoring the water level within the continuous wall 2 and the underground water level using a water level sensor or the like so that the water level always remains constant.

FIG. 7 shows an example using a dredger 35, which is the same as the embodiment shown in FIG. 6 in terms of wood quality.

In this embodiment, some water is stored in the tank 17b,
This is being introduced at construction site 1.

G (Effects of the Invention) As described in (2) below, according to the method for general transportation of construction surplus soil according to claims 1 to 5, the following effects are achieved.

■ The construction site and burial site are directly connected by pipeline, so
There are no problems caused by conventional transportation methods such as dump trucks.

■ Excavation, transportation, processing and disposal volumes are greatly improved;
The overall construction period can be shortened. In particular, underground construction plans are shortened.

■ Dump trunks cannot enter the construction site, and dump truck 1
- Since the racks are not running, comment 1 on temporary plans for lining boards, pier plans, girders for guiding dump trucks, etc.
-Reductions will be made.

■ It is possible to reduce the total cost of temporary planning, excavation, transportation, treatment and disposal of earth and sand, etc.

■ Since the sand removal pipes used for pipelines can be those used for port construction, etc., losses can be calculated by the commissioning staff of the Ministry of Transport, the Ministry of Construction, etc.

■ Pipelines can be installed in any location, including riverbeds, riverbeds, sea ditches, etc.

■ The pipeline is closed between the pump and the landfill, making it easier to manage.

■ The pipeline is closed between the pump and the landfill, so there is no odor or secondary contamination due to sediment.

■ If there is a lot of sand, it can be washed in the pipeline and can be reused as is.

[Phase] By ensuring consistency between large-scale projects and port reclamation, planned reclamation and use of abandoned land will be possible.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing a method for transporting construction surplus soil according to a first embodiment of the present invention. FIG. 2 is a sectional view thereof. FIG. 3 is a partially cutaway side view showing the muddying device in FIG. 1. FIG. 4 is an explanatory diagram of the pipeline in FIG. 1. FIG. 5 is another explanatory diagram of the pipeline in FIG. 1. The sixth leap is an explanatory diagram showing the method of transporting construction surplus soil according to the first embodiment of the present invention. FIG. 7 is an explanatory diagram showing a modification of the general transportation method for construction surplus soil according to the second embodiment of the present invention. [Explanation of symbols of main parts] 1...Construction site 8...Construction surplus soil 10...Murdering device 11...Tank 13...Electric pump 21...River 25...Port 26... Landfill 27... Pipeline 31 35-1+L]

Claims (5)

[Claims] (1) In the method of transporting construction surplus soil discharged from a construction site to a landfill and creating a landfill using this construction surplus soil, the construction surplus soil discharged from the construction site is turned into muddy water, and this muddy soil is used. A method for transporting construction surplus soil, which comprises transporting construction waste soil to a landfill site via a pipeline using a pump or other pressure-feeding means. (2) The method for transporting construction surplus soil according to claim 1, wherein the construction surplus soil discharged from a construction site is turned into muddy water by water introduced from a river or a landfill. (3) The method for transporting construction surplus soil according to claim 1 or 2, wherein the pipeline is laid using a river or a port leading from the construction site to the landfill. (4) After the construction surplus soil discharged from the construction site is stored in a tank and turned into muddy water by adding water,
4. The method for transporting construction surplus soil according to claim 1, 2 or 3, wherein the construction waste soil is transported to a landfill site via a pipeline using a pressure-feeding means such as a pump. (5) Water is introduced into the construction site from a river or a landfill, and while a boat equipped with a pump or other pressure-feeding means is navigated to the construction site, the earth and sand at the construction site is turned into muddy water and sucked out, and this is then transferred to the pipeline. 4. The method for transporting construction surplus soil according to claim 1, wherein the construction waste soil is transported to a landfill via a construction site.