CN213508481U

CN213508481U - Side slope water drainage system for foundation pit construction

Info

Publication number: CN213508481U
Application number: CN202022315058.9U
Authority: CN
Inventors: 罗祥斌; 吴君雄; 黎文全; 胡友军
Original assignee: China Coal Jiangnan Construction Development Group Co Ltd
Current assignee: China Coal Jiangnan Construction Development Group Co Ltd
Priority date: 2020-10-17
Filing date: 2020-10-17
Publication date: 2021-06-22
Anticipated expiration: 2030-10-17

Abstract

The technical scheme is a side slope drainage system for foundation pit construction, belongs to the field of foundation pit side slopes, and can filter soil outside a drainage pipe to avoid soil loss; the system comprises a reinforcing unit laid on a slope surface, and a water drainage unit for draining accumulated water in a side slope to the outer side of a reinforcing module, wherein the water drainage unit comprises a water drainage pipe which is obliquely arranged, and the water drainage unit also comprises a coarse sand pile which is arranged in the side slope and is in contact with the inner side surface of the reinforcing unit, and a filter cloth module which is arranged on the outer side of the coarse sand pile; the lower end of the drain pipe is arranged on the outer side of the reinforcing unit, and the upper end of the drain pipe extends upwards into the coarse sand pile.

Description

Side slope water drainage system for foundation pit construction

Technical Field

The utility model relates to a foundation ditch side slope field, especially a side slope sluicing system of foundation ditch construction.

Background

The slope drainage refers to the work of discharging water in and on the surface of a slope rock body, an important inducing factor of landslide is the action of water, and the water exerts hydrodynamic pressure, hydrostatic pressure and physicochemical action on the slope rock body to weaken the strength of the rock body, so that the slope is unstable and landslides, and the drainage is an extremely important measure for preventing landslide.

The side slope water drainage is usually characterized by that a water drainage pipe is adopted to lead out the accumulated water in the slope body, and the structure of said water drainage pipe and its related arrangement can refer to the technical scheme of patent application No. 201210078758.8, and it discloses a dredging and drainage reinforcing process and its equipment.

Above-mentioned this scheme, in pouring compressed air into the drain pipe, utilize compressed air's compression can strike the silt that blocks up the aperture, dredge the aperture on the drain pipe for the normal drainage of drain pipe, nevertheless the water clamp area earth that this drain pipe goes out, under the condition that constantly erodees, easy soil erosion and water loss causes the unstability of the slope body.

In the current stage, the side slope drainage is prone to take out soil in a slope body, and the slope body is unstable.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a side slope sluicing system of foundation ditch construction realizes filtering earth outside the sluicing pipe, avoids earth to run off.

The utility model provides a technical scheme does: a side slope water draining system for foundation pit construction comprises a reinforcing unit laid on a slope surface and a water draining unit discharging accumulated water in a side slope to the outer side of a reinforcing module, wherein the water draining unit comprises a water draining pipe which is obliquely arranged, a coarse sand pile which is arranged in the side slope and is in contact with the inner side surface of the reinforcing unit, and a filter cloth module which is arranged on the outer side of the coarse sand pile; the lower end of the drain pipe is arranged on the outer side of the reinforcing unit, and the upper end of the drain pipe extends upwards into the coarse sand pile.

In the slope water drainage system for foundation pit construction, a filter material and a filter screen are arranged in the upper end of the water drainage pipe.

In the above side slope water drainage system for foundation pit construction, the filter cloth module comprises an inner geotextile and an outer geotextile which are arranged outside the coarse sand pile and tightly propped against each other.

In the slope drainage system for foundation pit construction, the reinforcing unit comprises a first concrete layer laid on the slope surface, a support module arranged in the first concrete layer and a dowel bar arranged in an inclined manner; the upper end and the support module fixed connection of dowel, the lower extreme of dowel extends to inside the side slope.

In the slope drainage system for foundation pit construction, the support module comprises an electric welding net and a reinforcing steel bar which are arranged in a first concrete layer; the reinforcing steel bar is horizontally arranged on the lower side of the electric welding net and is fixedly connected with the upper end of the inserted bar.

In the slope drainage system for foundation pit construction, the slope drainage system further comprises a catch basin arranged at the top of the slope, a drainage groove arranged in the catch basin and a second concrete layer; the reinforcing unit and the second concrete layer are respectively arranged on two opposite sides of the drainage groove.

In the above side slope drainage system for foundation pit construction, the drainage channel comprises a second concrete layer arranged at the bottom of the intercepting drain, a brick wall and a cement mortar layer arranged on the upper side of the second concrete layer; the brick walls are respectively arranged at two sides of the cement mortar layer and tightly abut against the inner walls at two sides in the intercepting ditch; the cement mortar layer extends to the upper side of the inner wall of the brick wall.

After the technical scheme is adopted in the utility model, its beneficial effect who has is:

this scheme is through setting up the reinforcement unit and consolidating and compaction side slope surface, avoid the earth loss on side slope surface, the wash-out pipe that utilizes the slope runs through the reinforcement unit, insert the inside of side slope, draw forth ponding in the side slope, and the end setting of intaking of wash-out pipe is in coarse sand heap, and coarse sand heap is equipped with the filter cloth module outward, utilize filter cloth module and coarse sand heap to filter respectively, keep apart the earth of major subdivision outside the wash-out pipe, avoid earth to get into and flow in the wash-out pipe, also prevent to block up the wash-out pipe simultaneously, the realization is filtered earth outside the wash-out pipe, avoid earth to run off.

Drawings

Fig. 1 is a schematic structural view of a side slope water drainage system for foundation pit construction according to embodiment 1 of the present invention;

fig. 2 is a schematic structural view of a drain unit according to embodiment 1 of the present invention;

fig. 3 is a side view of a reinforcement unit of embodiment 1 of the present invention;

fig. 4 is a plan view of a reinforcement unit according to embodiment 1 of the present invention;

fig. 5 is a schematic structural view of a drain tank according to embodiment 1 of the present invention.

Reference numerals: 1. inserting ribs; 2. a drain pipe; 3. a first concrete layer; 4. brick walls; 5. a second concrete layer; 6. a water discharge tank; 7. welding a net; 8. an outer geotextile; 9. inner geotextile; 10. a filter material and a filter screen; 11. coarse sand heaping; 12. reinforcing steel bars; 13. cement mortar layer

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the following detailed description, but the present invention is not limited thereto.

Example 1:

as shown in fig. 1-5, a side slope drainage system for foundation pit construction comprises a reinforcement unit laid on a slope surface and a drainage unit for draining accumulated water in the side slope to the outer side of a reinforcement module, wherein the drainage unit comprises a drainage pipe 2 which is obliquely arranged, and further comprises a coarse sand pile 11 which is arranged in the side slope and is in contact with the inner side surface of the reinforcement unit and a filter cloth module which is arranged at the outer side of the coarse sand pile 11; the lower end of the water drain pipe 2 is arranged on the outer side of the reinforcing unit, and the upper end of the water drain pipe 2 extends upwards into the coarse sand pile 11.

In order to improve the filtering effect, a filtering material and a filtering screen 10 are arranged in the upper end of the water drain pipe 2.

Preferably, the filter cloth module comprises an inner geotextile 9 and an outer geotextile 8 which are arranged outside the coarse sand pile 11 and are tightly propped against each other.

The concrete structure of the reinforcing unit is that the reinforcing unit comprises a first concrete layer 3 laid on the slope surface, a support module arranged in the first concrete layer 3 and a dowel bar 1 arranged in an inclined manner; the upper end of the dowel bar 1 is fixedly connected with the support module, and the lower end of the dowel bar 1 extends into the side slope.

The first concrete layer 3 is laid on the slope surface, and by utilizing the characteristics of good water resistance, high hardness and the like of concrete, accumulated water is prevented from permeating into the slope body from the slope surface, and meanwhile, the slope surface is reinforced to prevent landslide; the setting of support module strengthens the holistic intensity of first concrete layer 3, through setting up dowel 1, fixes first concrete layer 3 firmly on domatic.

The support module has the specific structure that the support module comprises an electric welding net 7 and a steel bar 12 which are arranged in a first concrete layer 3; the reinforcing steel bar 12 is horizontally arranged on the lower side of the electric welding net 7 and is fixedly connected with the upper end of the steel bar inserting 1.

Further preferably, the device also comprises a catch basin arranged at the top of the side slope, a drainage groove 6 arranged in the catch basin and a second concrete layer 5; the reinforcement unit and the second concrete layer 5 are separately provided at opposite sides of the drainage channel 6.

In order to prevent the accumulated water from flowing to the slope surface from the top of the side slope, the accumulated water is intercepted by the intercepting ditch, the accumulated water is drained and discharged by the drainage groove 6 in the intercepting ditch, and the accumulated water is reduced from permeating into the slope body.

The specific structure of the drainage channel 6 is that the drainage channel 6 comprises a second concrete layer 5 arranged at the bottom of the intercepting drain, a brick wall 4 arranged on the upper side of the second concrete layer 5 and a cement mortar layer 13; the brick walls 4 are respectively arranged at two sides of the cement mortar layer 13 and tightly abut against the inner walls at two sides in the intercepting ditch; the cement mortar layer 13 extends to the upper side of the inner wall of the brick wall 4.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

Claims

1. A side slope water draining system for foundation pit construction comprises a reinforcing unit laid on a slope surface and a water draining unit discharging accumulated water in a side slope to the outer side of a reinforcing module, wherein the water draining unit comprises a water draining pipe (2) which is obliquely arranged, and is characterized in that the water draining unit further comprises a coarse sand pile (11) which is arranged in the side slope and is in contact with the inner side surface of the reinforcing unit and a filter cloth module which is arranged on the outer side of the coarse sand pile (11); the lower end of the drain pipe (2) is arranged on the outer side of the reinforcing unit, and the upper end of the drain pipe (2) extends upwards into the coarse sand pile (11).

2. The side slope water drainage system for foundation pit construction according to claim 1, wherein a filter material and a filter screen (10) are arranged in the upper end of the water drainage pipe (2).

3. The slope sluicing system for foundation pit construction according to claim 1, wherein the filter cloth module comprises an inner geotextile (9) and an outer geotextile (8) which are tightly against each other and arranged outside the coarse sand pile (11).

4. The foundation pit constructed side slope sluicing system according to claim 1, wherein the reinforcement unit comprises a first concrete layer (3) laid on the slope surface, a support module arranged in the first concrete layer (3), and obliquely arranged dowel bars (1); the upper end and the support module fixed connection of dowel bar (1), the lower extreme of dowel bar (1) extends to inside the side slope.

5. The foundation pit constructed side slope water drainage system according to claim 4, wherein the support module comprises an electric welding net (7) and a steel bar (12) arranged in the first concrete layer (3); the reinforcing steel bar (12) is horizontally arranged on the lower side of the electric welding net (7) and is fixedly connected with the upper end of the inserted bar (1).

6. The side slope water drainage system for foundation pit construction according to any one of claims 1-5, further comprising a catch basin arranged at the top of the side slope, a drainage channel (6) arranged in the catch basin, and a second concrete layer (5); the reinforcing unit and the second concrete layer (5) are respectively arranged on two opposite sides of the drainage groove (6).

7. The foundation pit constructed side slope sluicing system according to claim 6, wherein the drainage channel (6) comprises a second concrete layer (5) arranged at the bottom of the intercepting drain, a brick wall (4) arranged at the upper side of the second concrete layer (5) and a cement mortar layer (13); the brick walls (4) are respectively arranged at two sides of the cement mortar layer (13) and tightly abut against the inner walls at two sides in the intercepting ditch; the cement mortar layer (13) extends to the upper side of the inner wall of the brick wall (4).