JPH0598646A - Reinforced mound structure constructed with anchor - Google Patents

Abstract

PURPOSE:To firmly reinforce a mound structure and improve flexibility by constituting the soil structure with soil layers, outer members erected along the side face, tensile materials arranged horizontally, and anchor members. CONSTITUTION:The ground 12 is dug to form a groove 12a, concrete is placed in the groove 12a to provide a foundation member 10, and a single or multiple outer members 8 are arranged and vertically held on the foundation member 10. A soil layer 2 is horizontally installed, and it is fixed at the height of an anchor 18 made of a pipe or a bar connected to the connection section 20 of the outer member 8 with a tensile material 22 made of a wire or a tape. These processes are repeated in sequence to likewise arrange other soil layers 2, and the soil is stacked to the highest height 30 after a tensile material 28 and an anchor 26 of the highest step are installed. The tensile member 22 is installed to be reciprocated between the right and left connection sections one or more times. The anchor members may be arranged vertically or slantly on the back face of the outer member 8, or the outer member 8 may be omitted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforced embankment structure constructed by using an anchor, and in particular, the anchor is arranged in an embankment composed of a plurality of soil layers, and the anchor has a large friction resistance. The present invention relates to a reinforced embankment structure constructed by using an anchor constructed by connecting tensile materials.

[0002]

BACKGROUND OF THE INVENTION Embankment structures are reinforced (stable, stable, non-sticky soils, composed of waste.
Geologic structure (including reinforcement). The soil is, for example, soil,
Consists of various substances such as sand, viscosity, gravel, white slag, ore, powdered fuel ash, slag, etc. It is especially applicable to excavation, construction of side parts of embankments, and repair in earthworks.

Also, for example, a sea wall such as a wharf, a dam,
Applies to storage, unstable slopes in mountain areas, walls to prevent explosions, etc.

Further, the present invention is particularly applied to construction of retaining wall and bridge pressing portion, construction of embankment of weak soil, construction of steep embankment, or a combination of these constructions.

In the anchor soil structure technology, a stabilizing member is embedded in the soil mass in order to provide stability to the soil mass at a predetermined angle and to give natural stability to the compression of the soil mass. The type of stabilizing member used and the arrangement of members for a particular geological structure are set according to the size of the structure and the characteristics of the soil.

In an anchor soil structure, surface erosion is prevented or, as necessary or desired,
An exterior member is provided on the exposed side surface to maintain a clean appearance.

Reinforcing soil structures having various types of exterior members are described in British Patent Specification Nos. 1069361 and 13
No. 24686, and No. 1485004, respectively.

[0008]

By the way, in embankment structures constructed using conventional anchors, for example, sea walls such as wharves, dams, storages, unstable slopes in mountain areas, and explosions. When constructing embankment structures such as walls that protect the earth, anchors are used to support the embankment structures.

There is also a structure in which a tensile strength material having a frictional resistance is provided in the embankment structure to reinforce the embankment structure to improve the supporting force.

However, after construction of the embankment structure, there is a fear that the embankment behind the retaining wall will collapse due to natural disasters such as heavy rain and earthquakes, and the embankment structure will collapse. There is.

[0011]

Therefore, in order to eliminate the above-mentioned inconvenience, the present invention provides a fill structure constructed by arranging anchors in a fill consisting of a plurality of soil layers, and at least the fill structure. A long anchor is arranged near one side, and a tensile material with a large frictional resistance that connects one to the other is provided between the soil layers that form the embankment structure, and this tensile material is used for embankment. At least one anchor near one side of the structure is connected to the anchor disposed near one side of the structure and at least one anchor near the other side.
The tensile member is arranged so as to reciprocate more than once, and the embankment structure is formed by using the anchor and the tensile member together.

[0012]

According to the invention as described above, when constructing the embankment structure, a long anchor is disposed near at least one side portion of the embankment structure, and between the soil layers forming the embankment structure. A tensile member having a large frictional resistance is provided to connect the one and the other, and the tensile member is connected to an anchor arranged near one side of the embankment structure and the anchor near the one side and the other side. The tensile member is arranged so as to reciprocate at least once with respect to the side portion near the side, thereby constructing a solid embankment structure.

[0013]

Embodiments of the present invention will be described in detail below with reference to the drawings.

1 to 21 show a first embodiment of the present invention.

In FIG. 1, the anchor soil structure is composed of a soil layer 2, which is a soil mass, and a plurality of exterior members 8.
It has two retaining walls 4 and 6. For the sake of explanation, one of the exterior members (also referred to as a unit) 8 is removed from a predetermined position in the retaining walls 4 and 6. All exterior members 8 are
It is supported by the foundation member 10 located below the surface of the surrounding ground 12.

FIG. 2 shows a policy for constructing an anchor soil structure. First, the ground 12 is dug to form a groove 12a, and this groove 1 is used to form the base member 10.
Concrete is poured into 2a to be provided. The single exterior member 8 or the divided exterior member 8 is disposed on the base member 10 and is held substantially vertically.

The soil layer 2 in FIG. 2 is laid horizontally and is solidified at the height of the anchor 18 at the lowermost stage connected to the connecting portion 20 of the exterior member 8. The anchor 18 is located on the soil of the lowest layer laid and is connected to the connecting portion 20 of the exterior member 8 by the tensile member 22. The other soil layers are likewise laid horizontally and consolidated at the level of the anchor 24 in the next stage. This process is sequentially repeated. After arranging the uppermost anchor 26 and installing the uppermost tensile member 28, the soil reaches the uppermost height 30 and the support of the exterior member 8 is removed at a convenient time.

The policy for constructing the soil structure which is the wall shown in FIG. 3 is similar to the policy for constructing the soil structure shown in FIG.

4, 5, 6 and 7 illustrate a construction strategy using vertically arranged anchors. In order to form the base member 10, the ground 12 is dug to form a groove 12a, and concrete is similarly provided in the groove 12a. The exterior member 8 is erected on the base member 10 and is held substantially vertically. The soil is laid and hardened at the height of the tensile member 32 at the bottom.

The tensile member 32 is connected to the lowermost connecting portion 34 of the exterior member 8. The anchor 36 is firmly embedded in the hardened soil so as to be positioned substantially vertically. Alternatively, the anchor 36 is held at the position where the bottommost soil layer is arranged. The tensile member is arranged to connect the anchor to the exterior member 8. The other soil layer is laid and hardened to the position of the next-stage tensile member 38. The soil is consolidated around the anchor 36.

The support of the armor member 8 is removed at a convenient time. The other soil layers are sequentially and repeatedly laid until the uppermost tensile material 40 is installed. The soil then reaches a top height 42.

8 and 9 show a construction strategy using diagonally arranged anchors. The construction order in FIGS. 8 and 9 is similar to the construction order shown in FIGS.

FIG. 10 shows a connecting method of the anchors 44 arranged substantially horizontally on the exterior member by the tensile member 46. The anchor 44 is arranged on the hardened soil. The tensile member 46 traverses back and forth at least once or more between the connecting portion 48 of the exterior member 8 and the anchor 44 in a manner to tie a cord.

The soil of the next layer is the anchor 44 and the tensile member 4.
6 is laid. If the tensile member 46 is formed of a band-shaped flexible member such as plastic, the tensile member 46 can be stretched as much as possible, and the conformability with soil can be improved, and the reinforcing effect is increased by increasing the friction area. With this, a more reliable pullout resistance can be obtained.

FIG. 11 shows a construction policy similar to the construction policy in FIG. However, in the construction method in FIG. 11, the anchor 50 is embedded in the soil by being disposed substantially vertically, and is connected to the connecting portion 56 of the exterior member 52 via the tensile member 54.

FIG. 12 is an enlarged view between the anchor 44 and the tension member 46 at the connecting portion 〓〓 of FIG. The anchor 44 in FIG. 12 is configured by disposing a reinforcing rod 48 in the pipe 50 and filling the space in the pipe 50 with the concrete 52.

13 and 14 show a plurality of anchors 54 connected to one tensile member 56.

FIG. 15 shows a connecting mechanism of the exterior member 8 and the tensile member 46 in a state where the tensile member is movable in the vertical direction, and is an enlarged cross section taken along line 〓〓-〓〓 of FIG. It is a figure.

FIG. 16 shows a method of constructing an embankment as an anchor soil structure. First, the anchor member 58
Are arranged parallel to the surface of the ground. By the way, the anchor members 58 on both sides of the embankment facing each other are made up of the tensile members 6
Connected by 0. The soil is laid on the anchor 58 and the tensile member 60, and is hardened at the height of the anchor in the next stage. The anchor 62 is placed on the soil with the connecting tensile material 64. This process is the anchor 66
This is repeatedly performed up to the height at which the and the tensile connecting tool 68 are arranged. Additional soil is laid up to a top height of 70.

FIG. 17 shows a construction policy similar to the construction policy in FIG. In the construction strategy of FIG. 17, multiple anchors are used on both sides of the embankment.

FIG. 18 shows a construction strategy in which a horizontally arranged anchor 72 and a vertically arranged anchor 74 are combined. The tensile member 30 is connected to the anchor 74 via the slide connecting device described above.

FIG. 19 illustrates an anchor soil construction strategy with anchors 76 disposed substantially vertically and diagonally disposed anchors 78 connected to a tensile member 80. First, the anchor members, which are slanted and vertical, are respectively held at predetermined positions. Then, the lowermost tensile member 80 is arranged to hold each anchor at a predetermined position. The soil is laid on this tensile member and at the height of the tensile member 82 in the next stage. This tensile member 82 is connected to both anchors. Additional soil is consolidated at the next tensile strength. This step is performed up to the position where the uppermost tensile member 84 connects the anchors 76 and 78. And
The soil is further laid up to a maximum height of 86.

As the anchor, various materials and shapes can be used, and the anchor is made of a member such as a pipe, a rod, a metallic member, a polymer, glass or wood. The tensile material can be composed of various members such as wires, tapes, chains, rods, rods, sheet metals, lattices, plates, metallic ropes, glass, polymers and vegetable substances. If the tensile member is made of a material that is highly deformable, it can be expected to increase the reinforcing effect by adapting to the soil particle shape and increasing the friction area.

Further, as shown in FIG. 20, if the pulling resistance force of the tensile member 88 is large and the anchor 92 has a large pulling resistance force, from the exterior member 90 to the anchor 92. The distance of can be made small by L.

Further, as shown in FIG. 21, the distance S between the tensile members 88 can be increased, the number of the tensile members 88 can be reduced, the cost can be reduced, and it is economical. In addition to being advantageous, it is possible to reduce the number of construction steps and improve the construction workability.

As shown in FIG. 22, a plurality of convex projections 96 may be formed on the surface of the tensile member 94 to increase the frictional resistance force which is the pullout resistance force of the tensile member 94.

Further, as shown in FIG. 23, it is possible to increase the pull-out resistance of the tensile member 98 by forming a plurality of recesses, for example, through holes 100 on the surface of the tensile member 98.

That is, the present invention relates to a reinforcing soil structure having an anchor, and a soil layer, a single or a plurality of exterior member units erected along the side surface of the soil layer, arranged substantially horizontally. It has an anchor member which is connected to the exterior member by a tensile material having a great frictional resistance and is embedded in the soil layer.

The present invention is also a policy for constructing a soil structure for reinforcement having an anchor having an exterior member which is positioned upright so as to extend upward from the foundation, and the exterior member is placed at a substantially vertical position. Attach a temporary tightening mechanism or temporary support to support, lay the bottom layer of the first layer of soil on the back of the exterior member, and position the anchor member on this soil layer,
This anchor member is firmly connected to the exterior member via a tensile member having a large friction resistance, a second layer of soil is laid on the anchor member and the tensile member, and a temporary support or temporary tightening is performed. Remove the mechanism.

In a preferred measure of the present invention, a plurality of anchors are firmly connected to the exterior member by a plurality of tensile members used together with the anchors, and the anchors are arranged at predetermined intervals up to the height of the exterior member. In addition, this construction method is to position the second-stage anchor member on the second-layer soil and firmly connect the anchor member to the exterior member together with the tensile material embedded in the third-layer soil embankment. Then, the next-stage anchor is placed on the soil of the third layer, and this anchor is connected to the exterior member, and further soil embankment is applied, and the anchor member is attached to the exterior member at the required height of the uppermost soil layer. Connect firmly. Of course, if desired, each layer of soil embankment can be consolidated after it has been laid and before the next anchor is placed on the underlying soil.

According to another measure of the present invention, the anchor member is disposed substantially vertically or obliquely on the back surface of the exterior member. A plurality of anchors are used by being located on any surface, and the anchors are connected to the exterior member via a tensile material used together after each soil layer is laid. The anchor is arranged up to the height of the soil structure and has a predetermined length. The anchors arranged substantially vertically are provided as a tensile member for connecting the anchors attached to the exterior member so as to allow the tensile member to move somewhat in the substantially vertical direction in the length direction. It is desirable to be used. This is accomplished by providing a tension member that is connected by a slide connector.

According to the third measure of the present invention, the exterior member is not required. In this case, the anchors located substantially in the horizontal plane are connected by a plurality of tensile members used together with the anchors. In addition, this construction strategy is to position the second-stage anchor members on the second-layer soil, connect these anchor members with a tensile member, and lay the third-layer soil, The anchor member of the next stage is arranged and connected to the tensile member, the soil of the next layer and the anchor member are arranged at a required height, and the uppermost layer of the soil embankment is laid on the soil layer.

According to another measure of the present invention, the anchor members are arranged substantially vertically or obliquely. A plurality of anchors are used and these anchors are connected to the exterior member by a tensile material used together after each soil layer is laid. The anchors arranged substantially vertically are preferably used as a tensile member for connecting the anchors to an exterior member provided with a slide connecting tool.

24 and 25 show a second embodiment of the present invention. In the second embodiment, the portions having the same functions as those in the first embodiment will be described with the same reference numerals.

The feature of this second embodiment is that the continuous tensile member 102 is used.

That is, the strip-shaped tensile member 102 is formed in a long length, and the exterior member 104 and the anchor 106 are reciprocated a plurality of times.

That is, the connecting portion 108 of the exterior member 104.
As shown in FIG. 25, the anchor 106 is placed in the frame 110.
The support member 112 is provided in parallel with the support member 112, and the tensile member 102 is wound around the support member 112 by about half a turn.
The outer member 104 is supported by reciprocating between the anchor 4 and the anchor 106 and sequentially moving to the side.

By the way, when a part of the divided exterior member 104 tries to move forward, the long tensile member 10
Since the exterior member 104 is connected by 2
The other exterior member tries to move backward, but the exterior member 1
04 The rear embankment is compacted and the adjacent wall surface functions as an anchor, and the collapse of the exterior member 104 of the embankment structure can be effectively prevented, which is practically advantageous.

The present invention is not limited to the first and second embodiments described above, and various application modifications are possible.

For example, as shown in FIG. 26, when a long tensile member 114 is used, the tensile member 114 is attached to the anchor 116.
It is also possible to wind it at least once or more so that the long tensile member 114 can exhibit the function as an independent tensile member and the function as a continuous tensile member.

If a sheet-like member which is a conventional method, that is, a member having a frictional resistance with a large surface area is used as the tensile member and an anchor having a pull-out resistance is used together, the laying length of the tensile member is reduced. It can be small, which is practically advantageous.

[0052]

As described in detail above, according to the present invention, a long anchor is disposed near at least one side portion of the embankment structure, and one and the other are provided between a plurality of soil layers forming the embankment structure. A tensile material having a large frictional resistance is provided to connect the anchor to an anchor arranged near one side of the embankment structure, and the anchor near one side and the other side are adjacent. Since the tensile member is arranged so that the tensile member reciprocates at least once or more, and the embankment structure is formed by using the anchor and the tensile member together, a solidly reinforced embankment structure can be constructed. It is possible and practically advantageous. Also, for example, sea walls such as wharfs, dams, storage,
It can be applied to any places such as unstable slopes in mountain areas, walls to protect against explosions, etc., and can improve versatility, especially to construct retaining walls and bridge holding parts. It can be applied to the construction of weak soil embankments, the construction of steep embankments, or a combination of these constructions.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a retaining wall formed of an exterior member showing a first embodiment of the present invention.

FIG. 2 is a side view showing a configuration of a reinforcing soil structure having an anchor.

FIG. 3 is a side view showing a configuration of a reinforcing soil structure having an anchor.

FIG. 4 is a side view showing a configuration of a reinforcing soil structure having an anchor.

FIG. 5 is a side view showing a configuration of a reinforcing soil structure having an anchor.

FIG. 6 is a side view showing a configuration of a reinforcing soil structure having an anchor.

FIG. 7 is a side view showing a configuration of a reinforcing soil structure having an anchor.

FIG. 8 is a side view showing a configuration of a reinforcing soil structure having an anchor.

FIG. 9 is a side view showing a configuration of a reinforcing soil structure having an anchor.

FIG. 10 is a plan view of a retaining wall provided with anchors arranged substantially parallel to and horizontally with the exterior member.

FIG. 11 is a plan view of a retaining wall with vertically disposed anchors.

FIG. 12 is an explanatory diagram showing a state in which a tensile member is wrapped around the anchor member.

FIG. 13 is an explanatory diagram showing a state in which a tensile member is wrapped around the anchor member.

FIG. 14 is an explanatory diagram showing a state in which a tensile member is wrapped around the anchor member.

15 is a magnified cross-sectional view taken along line 〓〓-〓〓 of FIG. 10, showing a connecting mechanism between the exterior member and the tensile member in a state where the tensile member is movable in the vertical direction.

FIG. 16 is a side view of a reinforcing soil structure having anchors.

FIG. 17 is a side view of a reinforcing soil structure having anchors constructed using multiple anchors.

FIG. 18 is a side view of a reinforcing soil structure having anchors configured by arranging anchors horizontally and vertically.

FIG. 19 is a side view of a reinforcing soil structure having anchors configured by arranging the anchors obliquely and vertically.

FIG. 20 is a schematic diagram for explaining the effect of increasing the pull-out resistance of the tensile member.

FIG. 21 is a schematic enlarged plan view of a retaining wall.

FIG. 22 is an enlarged sectional view of a tensile member.

FIG. 23 is an enlarged sectional view of a tensile member.

FIG. 24 is a schematic plan view of a retaining wall showing a second embodiment of the present invention.

FIG. 25 is an enlarged cross-sectional view of a partly cutaway portion of the arrow “〓〓〓” in FIG.

FIG. 26 is a schematic enlarged plan view of a retaining wall showing another embodiment of the present invention.

[Explanation of symbols]

 2 Soil layer 4, 6 Retaining wall 8 Exterior member 10 Base member 12 Ground 18 Anchor 20 Connection part 28 Tensile material

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[Procedure amendment]

[Submission date] December 6, 1991

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 5]

[Fig. 12]

[Fig. 13]

FIG. 19

[Figure 3]

[Figure 4]

[Figure 6]

[Figure 7]

[Figure 8]

[Figure 9]

[Figure 10]

FIG. 11

FIG. 15

FIG. 17

FIG. 14

FIG. 16

FIG. 18

FIG. 20

FIG. 21

FIG. 22

FIG. 23

FIG. 24

FIG. 25

FIG. 26

Claims (1)

[Claims] 1. In a embankment structure constructed by arranging anchors in an embankment composed of a plurality of soil layers, a long anchor is arranged in the vicinity of at least one side of the embankment structure to form the embankment structure. A tensile material with a large frictional resistance is provided between the soil layers to form one and the other, and this tensile material is connected to the anchors arranged near one side of the embankment structure. And a structure in which the anchor near one side and the part near the other side are arranged so that the tensile member reciprocates at least once or more, and the embankment structure is formed by using the anchor and the tensile member together. Reinforced embankment structure constructed using anchors characterized by.