CN213476948U - Outer-supporting gravity type slag wall of valley type waste soil field in mountain area - Google Patents

Abstract

The utility model discloses an external-bracing gravity type slag wall of a valley type waste soil field in mountain areas, which comprises a gravity type slag wall body, wherein support ribs are arranged on the outer side of the gravity type slag wall body, and anti-skid tenons are arranged at the bottoms of the support ribs; setting a settlement joint on the gravity type slag stopping wall body, and arranging a PVC drain hole in the gravity type slag stopping wall body; the gravity type slag-stopping wall is characterized in that a gravel reverse-filtering layer is arranged on the soil-retaining side of the gravity type slag-stopping wall body, a waste slag body is arranged behind the gravel reverse-filtering layer, and a permeable geotextile is arranged between the gravel reverse-filtering layer and the waste slag body. The utility model discloses a set up the support rib in the conventional gravity type slag-stopping wall outside, support rib bottom sets up the cling compound tenon, pours as an organic wholely with gravity type slag-stopping wall, can show the cling compound, the antidumping performance that improve gravity type slag-stopping wall, under same soil pressure effect, reduces the requirement of slag-stopping wall to ground bearing capacity, and application scope is wider, and abandon soil yard and prop up the fender stability better.

Description

Outer-supporting gravity type slag wall of valley type waste soil field in mountain area

Technical Field

The utility model relates to a mountain area valley type abandons outer gravity type slag wall of soil yard also is applicable to the great valley type ardealite storage yard of capacity equally, belongs to and abandons the technical field of slag yard protection.

Background

With the high-speed development of highway and railway construction in China, the coverage area of a road network is gradually promoted to a remote mountain area, the terrain and the topography of the mountain area are complex, the proportion of bridges and tunnels is high, high-fill deep-cut road sections inevitably occur, the filling and digging balance of a route is difficult to achieve, a large amount of permanent abandoned parties are generated, and a spoil area is required to be arranged to meet the requirement of spoil. The valley type field becomes the first choice for site selection of the abandoned soil field in the mountainous area because of the advantages of large abandoned soil capacity, less land acquisition and the like. The spoil is loose, the consolidation degree is poor, a steep side slope is formed in the stacking process, the stability of the spoil is generally poorer than that of a natural side slope, and landslide geological disasters such as integral slippage and the like are easy to occur when the spoil is subjected to strong rainfall, so that the retaining of the spoil is a key factor for ensuring the integral stability of the spoil and preventing landslide.

The mountain valley type spoil area is loose in spoil, poor in consolidation degree, forms a steep side slope in the accumulation process, is poor in stability compared with a natural side slope, is easy to have landslide geological disasters such as integral slippage and the like when meeting strong rainfall, can bring serious damage to the surrounding environment, and influences the life and property safety of surrounding residents. Therefore, the key for preventing the problems of farmland occupation, water and soil loss, geological disasters and the like caused by landslide of the spoil area is to arrange a reasonable retaining structure to ensure the stability of the spoil area.

The conventional gravity type slag retaining wall is generally adopted for retaining the waste soil field with good topographic and geological conditions, the stability of the retaining wall under the action of soil pressure is maintained by the gravity of the conventional gravity type slag retaining wall, the gravity type slag retaining wall has large self weight and usually has high requirements on the bearing capacity of a foundation, and if the bearing capacity of the foundation does not meet the requirements, the wall body integrity problems such as wall body slippage, overturning and the like often occur, so that the stability of the whole waste soil field is influenced.

To the hillside valley type spoil area retaining structure that natural topography slope is steeper, overburden is thicker need bear great soil pressure, often need adopt the deep foundation retaining structure (sheet pile wall) of friction pile plus retaining plate combination, and the sheet pile wall can resist great soil pressure, and overall stability is higher, but the friction pile needs the manual hole digging then cast-in-place construction usually, and the retaining plate still needs the prefabricated hoist and mount construction degree of difficulty great, the time limit for a project longer, the cost is higher.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mountain area valley type spoil area's outer support gravity type slag wall to it is relatively poor to mountain area valley type spoil area adaptability to solve conventional gravity type slag wall and require higher to the ground bearing capacity, the problem that the pile slab wall construction degree of difficulty is big, the period is long, the cost is high.

The utility model discloses a realize like this:

an external-support gravity type slag wall of a valley type waste soil field in a mountain area comprises a gravity type slag wall body, wherein support ribs are arranged on the outer side of the gravity type slag wall body, and anti-skid tenons are arranged at the bottoms of the support ribs; setting a settlement joint on the gravity type slag stopping wall body, and arranging a PVC drain hole in the gravity type slag stopping wall body; the gravity type slag-stopping wall is characterized in that a gravel reverse-filtering layer is arranged on the soil-retaining side of the gravity type slag-stopping wall body, a waste slag body is arranged behind the gravel reverse-filtering layer, and a permeable geotextile is arranged between the gravel reverse-filtering layer and the waste slag body.

Furthermore, backfill tamping areas are arranged on two sides of the lower portion of the gravity type slag stopping wall body, and tamping clay layers are arranged on the tops of the backfill tamping areas.

Furthermore, a rammed clay layer is also arranged at the top of the gravel reverse filtering layer.

Compared with the conventional gravity type slag-stopping wall, the utility model has the advantages that the support rib is arranged on the outer side of the conventional gravity type slag-stopping wall, the anti-skid tenon is arranged at the bottom of the support rib and is poured into a whole with the gravity type slag-stopping wall, so that the anti-skid and anti-overturning performances of the gravity type slag-stopping wall can be obviously improved, the requirements of the slag-stopping wall on the bearing capacity of the foundation are reduced under the action of the same soil pressure, the application range is wider, and the retaining stability of the waste soil field is better; compared with the existing pile plate wall, the slag retaining wall is simple and convenient in integral pouring construction, short in construction period, low in manufacturing cost and high in economic and social benefits.

The utility model discloses simple structure, construction convenience, safe and reliable, economic and environmental protection benefit is showing, can abandon the earth field in mountain area and keep off slag wall technical field and extensively popularize and apply.

Drawings

FIG. 1 is a three-dimensional structure diagram of an external-bracing gravity type slag-stopping wall

FIG. 2 is a general section of a gravity type slag-stopping wall

FIG. 3 is a general cross-section of a gravity type slag dam with outer support ribs

Description of reference numerals: 1-gravity type slag retaining wall body, 2-settlement joint, 3-outer side support rib, 4-anti-skid tenon, 5-soil retaining side, 6-PVC drain hole, 7-rammed clay layer, 8-backfilling ramming area, 9-broken stone reverse filtering layer, 10-permeable geotextile and 11-waste slag body.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

As shown in figures 1, 2 and 3, the externally-supported gravity type slag-stopping wall of the valley type spoil area comprises a gravity type slag-stopping wall body 1,

The anti-skid device comprises a PVC drain pipe 6, a wall back backfilling tamping area 8, a wall back 50cm tamping clay layer 7, a 50cm broken stone reverse filtering layer 9 attached to the wall back, a permeable geotextile 10, a wall front backfilling tamping area 8, a 50cm thick tamping clay layer 7, an outer side supporting rib 3 and an anti-skid tenon 4 of the supporting rib. C20 concrete is adopted for the support rib 3 material and the wall material, a settlement joint 2 is arranged every 8-10 m of the wall, and two support ribs 3 are symmetrically arranged on each slag stopping wall.

The construction method of the present invention is described below with reference to fig. 3:

as shown in fig. 3, the present invention is implemented mainly according to the following steps:

1. preparing, measuring and lofting on site, and determining the position of the gravity type slag stopping wall body 1;

2. excavating a foundation pit of a gravity type slag retaining wall body 1;

3. retesting the elevation of the foundation pit, the position of the gravity type slag-stopping wall body 1 and the position of the settlement joint 2 of the slag-stopping wall under the sectional condition;

4. constructing a gravity type slag-stopping wall body 1 and a support rib 3 template;

5. the supporting ribs 3 of the slag retaining wall are integrally cast in sections;

6. a foundation pit of the gravity type slag retaining wall body 1 is backfilled by adopting gravel soil and is rolled and compacted to form a backfilled tamping area 8;

7. tamping a clay layer 7 with the top of the foundation pit being 30 cm;

8. and constructing a broken stone reverse filtering layer 9 on the back of the wall.

Of course, the above is only the specific application example of the present invention, and the present invention has other embodiments, and all technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope claimed by the present invention.

Claims (3)

1. The utility model provides a hillside valley type spoil area's outer supporting gravity type slag wall which characterized in that: the gravity type slag-stopping wall comprises a gravity type slag-stopping wall body (1), wherein a support rib (3) is arranged on the outer side of the gravity type slag-stopping wall body (1), and an anti-skid tenon (4) is arranged at the bottom of the support rib (3); the gravity type slag stopping wall body (1) is provided with a settlement joint (2), and a PVC drain hole (6) is formed in the gravity type slag stopping wall body (1); the gravity type slag-stopping wall is characterized in that a gravel reverse-filtering layer (9) is arranged on the soil-retaining side (5) of the gravity type slag-stopping wall body (1), a waste slag body (11) is arranged behind the gravel reverse-filtering layer (9), and a permeable geotextile (10) is arranged between the gravel reverse-filtering layer (9) and the waste slag body (11).

2. The exterior-supported gravity type slag wall of the mountain valley type spoil area according to claim 1, characterized in that: and backfill tamping areas (8) are arranged on two sides of the lower part of the gravity type slag stopping wall body (1), and rammed clay layers (7) are arranged on the tops of the backfill tamping areas (8).

3. The exterior-supported gravity type slag wall of the mountain valley type spoil area according to claim 2, characterized in that: and a rammed clay layer (7) is also arranged at the top of the gravel reverse filtering layer (9).

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