CN217601502U

CN217601502U - Upward inclined retaining wall strip-shaped inverted filter layer

Info

Publication number: CN217601502U
Application number: CN202221091557.7U
Authority: CN
Inventors: 明士金; 谭福官; 凌意茜; 陈嘉明; 聂宗乾; 黄神忠
Original assignee: Hualan Design Group Co ltd
Current assignee: Hualan Design Group Co ltd
Priority date: 2022-05-09
Filing date: 2022-05-09
Publication date: 2022-10-18
Anticipated expiration: 2032-05-09

Abstract

The utility model provides a formula of facing upward against reverse filtering layer of retaining wall bar, the wall back sets up a plurality of bar and reverses filtering layer, and its position matches with the outlet position, and each bar is reversed filtering layer and is corresponded a drain hole, for the shaping is pour to the one-time die filling of no sand macroporous concrete, hugs closely the wall back and fixes. The utility model discloses change the shape of bar inverted filter into by traditional grit inverted filter, need not the construction phase and carry out grit ratio and pile up the inverted filter, each outlet removes the numerous and diverse process of independent construction, adopts the bar inverted filter of no sand macroporous concrete one-time die filling pouring shaping to accomplish the back in other local prefabrications, transports the job site and can use, greatly improves site operation efficiency.

Description

Upward inclined retaining wall strip-shaped inverted filter layer

Technical Field

The utility model relates to a retaining wall construction technical field specifically is an it turns up inclined retaining wall bar inverted filter.

Background

The retaining wall is a structure for supporting roadbed filling or hillside soil and preventing the filling or soil from deforming and destabilizing. In the cross section of the retaining wall, the part which is directly contacted with the supported soil body is called a wall back; the part facing the wall back and being empty is called the wall surface, and the part directly contacting the foundation is called the basement; the front end of the base is called the wall toe. When the ground transverse slope at the toe of the wall is steeper, the inclined retaining wall is usually adopted for construction, the soil pressure borne by the back of the inclined retaining wall is smaller, and when the inclined retaining wall is used for a cutting wall, the back of the wall is more attached to the side slope of the excavation surface, so that the excavation amount and the backfill amount are smaller, the wall body is increased by adopting the inclined wall back, the section is increased, and the inclined retaining wall back is suitable for a flat road shoulder wall or a road embankment wall at the toe of the cutting wall.

The drainage facility of the retaining wall is generally composed of two parts of ground drainage and wall drainage. The wall body drainage is a drainage measure which is set for dredging the soil moisture behind the wall, preventing the ground water from infiltrating downwards, preventing the accumulated water behind the wall from forming hydrostatic pressure and eliminating the expansion pressure of the clay filler after the clay filler invades water. Retaining wall inverted filter adopts grit and stone as inverted filter often, and grit and stone layering are stacked because grit and stone are loose material, can not the shaping, use when the inclined wall of the formula retaining wall that leans upward is carried on the back, can only adopt the anti-setting of digging, often lead to the construction to leak to do or the drain pipe blocks up, seriously influences construction quality.

Disclosure of Invention

The utility model provides an it leans on formula retaining wall bar inverted filter to face upward can realize a die filling and pour the shaping, and it is convenient to have the construction, improves the efficiency of construction, and the inverted filter is effectual, guarantees inverted filter and whole drainage system's quality.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a formula of facing upward inclined retaining wall bar inverted filter, the wall back sets up a plurality of bar inverted filter, and its position matches with the outlet position, and each bar inverted filter corresponds a drain hole, for the shaping is pour to the one-step die filling of no sand macroporous concrete, hugs closely the wall back and fixes.

A pipe cover is arranged at the water inlet end of the water drainage hole; the pipe cover is used for protecting the opening of the water drainage hole.

The lower end part of the strip-shaped inverted filter layer is a lower clay water sealing layer; the lower clay water-sealing layer prevents the infiltration of the lower seepage water into the lower soil layer, which causes the soil body to sink.

The upper end part of the strip-shaped inverted filter layer is provided with an upper clay water sealing layer; the upper clay water sealing layer is used for preventing accumulated water on the ground from seeping downwards and entering backfill soil to cause soil body sinking.

A layer of permeable geotextile is arranged between the strip-shaped inverted filter layer and the backfill soil; the geotechnical cloth cladding that permeates water is on bar inverted filter surface, prevents that soil particles from getting into the inside clearance of blockking up of macroporous concrete, influencing the drainage.

A plurality of embedded steel bars are embedded in the positions, corresponding to the strip-shaped inverted filter layers, of the back of the wall body; the embedded steel bars are used for fixing the strip-shaped inverted filter layer.

The utility model discloses a work progress as follows:

after the concrete pouring of the wall body is finished, when a backfill soil layer reaches the lower end of the inverted filter layer, a lower clay water sealing layer is laid, then the bar-shaped inverted filter layer formed by once-molding the sand-free macroporous concrete is placed on the back of the wall body, the position corresponds to the water outlet, a layer of permeable geotextile is covered and coated on the surface of the bar-shaped inverted filter layer, the reinforcing steel bars embedded in the wall body are bent, the bar-shaped inverted filter layer is clamped and fixed, the backfill soil is continuously conducted to the upper end of the bar-shaped inverted filter layer, the clay water sealing layer is laid, and the backfill soil is continuously conducted to the elevation of the top of the wall, so that the construction of the retaining wall is finished.

The utility model has the advantages that:

1. the utility model discloses change the shape of bar inverted filter into by traditional grit inverted filter, need not the construction phase and carry out grit ratio and pile up the inverted filter, each outlet removes the numerous and diverse process of independent construction, adopts the bar inverted filter of no sand macroporous concrete one-time die filling pouring shaping to accomplish the back in other local prefabrications, transports the job site and can use, greatly improves site operation efficiency.

2. The utility model discloses a pre-buried reinforcing bar carries out the fixed mode of staple bolt to the bar reversed filter layer in the wall body, has solved and has faced upward the inclined retaining wall and reversed to strain the difficult problem that is gravel loose material in the package, solves the fashioned difficult problem of the package of reversed filtration.

3. The utility model discloses can prevent that the problem of inverted filter construction hourglass doing or drain pipe jam seriously influences construction quality.

Description of the drawings:

FIG. 1 is a schematic side view of the cross-sectional structure of the present invention;

FIG. 2 is a schematic view of the rear cross-section structure of the present invention;

the serial numbers and component names in the figures are: 1. a wall body; 2. a water drain hole; 3. a tube cover; 4. a strip-shaped inverted filter layer; 5. a clay water sealing layer is arranged; 6. Applying clay to seal a water layer; 7. water-permeable geotextile; 8. and (6) embedding reinforcing steel bars.

Detailed Description

Example 1

A kind of up-slope retaining wall bar-shaped inverted filter, set up several bar-shaped inverted filter 4 on the back of the wall 1, its position matches with position of the outlet 2, every bar-shaped inverted filter 4 corresponds to a row of outlet 2, for the one-time die-filling pouring of the non-sand macroporous concrete is shaped, cling to the back of the wall 1 to fix;

a pipe cover 3 is arranged at the water inlet end of the drain hole 2;

the lower end part of the strip-shaped inverted filter layer 4 is a lower clay water sealing layer 5;

the upper end part of the strip-shaped inverted filter layer 4 is provided with an upper clay water sealing layer 6;

a layer of permeable geotextile 7 is arranged between the strip-shaped inverted filter layer 4 and the backfill soil;

the back of the wall body 1 corresponds to the position of the strip-shaped inverted filter layer 4, and a plurality of embedded steel bars 8 are embedded in advance.

Claims

1. The utility model provides a contrary filter bed of formula retaining wall bar that leans upward which characterized in that: the back of the wall body (1) is provided with a plurality of strip-shaped inverted filter layers (4), the positions of the strip-shaped inverted filter layers are matched with the positions of the water drain holes (2), each strip-shaped inverted filter layer (4) corresponds to one row of the water drain holes (2), and the strip-shaped inverted filter layers are formed by one-step mold filling and pouring of sand-free macroporous concrete and are fixed to the back of the wall body (1) in a clinging mode.

2. The strip-shaped inverted filter of the inclined retaining wall according to claim 1, wherein: and a pipe cover (3) is arranged at the water inlet end of the water drainage hole (2).

3. The strip-shaped inverted filter of the inclined retaining wall according to claim 1, wherein: the lower end part of the strip-shaped inverted filter layer (4) is a lower clay water sealing layer (5).

4. The strip-shaped inverted filter of the inclined retaining wall according to claim 1, wherein: the upper end part of the strip-shaped inverted filter layer (4) is provided with an upper clay water sealing layer (6).

5. The strip-shaped inverted filter of the inclined retaining wall according to claim 1, wherein: a layer of permeable geotextile (7) is arranged between the strip-shaped inverted filter layer (4) and the backfill soil.

6. The strip-shaped inverted filter layer of the inclined retaining wall according to claim 1, which is characterized in that: the back of the wall body (1) corresponds to the strip-shaped inverted filter (4), and a plurality of embedded steel bars (8) are embedded.