CN211898421U

CN211898421U - Prefabricated assembled drainage dado board of foundation ditch lateral wall

Info

Publication number: CN211898421U
Application number: CN201922491892.0U
Authority: CN
Inventors: 于亚会
Original assignee: Longyan Xi'an Construction Engineering Co ltd
Current assignee: Longyan Xi'an Construction Engineering Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-11-10
Anticipated expiration: 2029-12-30

Abstract

The utility model provides a prefabricated assembled drainage dado of foundation ditch lateral wall, including adherence drain board area, foraminiferous drain pipe, exempt from to tear open drainage precast slab, waterproofing membrane etc. the lateral surface of exempt from to tear open drainage precast slab is taken and is indulged horizontal recess, is fixed in vertical recess through flexible bandage after the drainage pipe of foraminiferous wraps the anti-geotextile of straining outward, sets up adherence drain board area combination and assists the drainage, and the drain pipe is deep into bottom drainage bed course; the disassembly-free precast slab waterproof rubber pad tongue-and-groove is connected through a screw after being lapped, and an adjustable detachable support is arranged in the foundation pit for temporary fixing and auxiliary fixing. The utility model relates to a prefabricated assembled drainage dado of foundation ditch lateral wall can realize high-efficient drainage of preventing in the foundation ditch, has better economic technology benefit.

Description

Prefabricated assembled drainage dado board of foundation ditch lateral wall

Technical Field

The utility model relates to a foundation ditch lateral wall drainage field, in particular to prefabricated assembled drainage dado board of foundation ditch lateral wall.

Background

In the underground foundation construction of buildings, because the buried depth of the elevator foundation pit is lower than that of the foundation trench, the water at the position of the elevator foundation pit is not in place or because the soil layer is a stagnant water layer after the water in the foundation pit is lowered, the water seepage is caused to the side wall and the bottom of the elevator foundation pit, and the normal construction of the elevator foundation pit is seriously influenced. The existing conventional method is to make a drainage water guide system, insert and insert a water guide pipe to drain the seepage water on the four walls, and make a drainage ditch or a water collection pit at the bottom of a foundation pit to drain the seepage water uniformly.

However, in practical application, the water guide pipe rarely discharges water, the stagnant water on the side wall of the foundation pit still seeps in a large area and cannot be effectively discharged, so that water leakage on the side wall of the foundation pit is caused, the water leakage on the side wall of the foundation pit is not well treated, the stability of the foundation pit is influenced, construction cannot be continued downwards, and the engineering progress and the construction quality are seriously influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an improve foundation ditch lateral wall drainage efficiency, simple effectual prefabricated assembled drainage dado of foundation ditch lateral wall can improve foundation ditch lateral wall drainage efficiency, has better technical and economic benefits.

The utility model provides a prefabricated assembled drainage dado of foundation ditch lateral wall sets up in the foundation ditch, include: the wall-attached drainage plate strip, the drainage pipe with holes, the non-dismantling drainage prefabricated plate, the waterproof coiled material and the adjustable detachable temporary support frame; the waterproof coiled material, the non-dismantling drainage precast slab and the wall-attached drainage slab band are sequentially arranged on the side wall of the foundation pit from outside to inside, and two ends of the adjustable detachable temporary support frame respectively support the side wall of the foundation pit at two sides; the outer side surface of the disassembly-free drainage precast slab is provided with a longitudinal groove and a transverse groove, wherein the longitudinal groove and the transverse groove are vertically intersected, and a drainage pipe with a hole is fixed in the longitudinal groove.

In some embodiments, the perforated drain pipe is wrapped with a reverse filter geotextile and then fixed in the longitudinal groove by a flexible bandage.

In some embodiments, the perforated drain pipe extends into the drainage blanket at the bottom of the foundation pit.

In some embodiments, the width of the longitudinal grooves and the width of the transverse grooves are 2-3 mm wider than the outer diameter of the perforated drain pipe.

In some embodiments, the joints of the non-dismantling drainage prefabricated panels are grooves and tongues, and a plurality of non-dismantling drainage prefabricated panels are connected by fixing screws after being lapped.

In some embodiments, a waterproof rubber pad is arranged at the groove joint position.

In some embodiments, the adjustable detachable temporary support frame comprises two connected support rods, the two support rods are connected through threads, and support frame base plates are arranged at two ends of the adjustable detachable temporary support frame.

In some embodiments, the drainage cushion layer, the isolation layer, the fine stone concrete layer, the waterproof coiled material and the impervious concrete structure layer are arranged at the bottom of the foundation pit in sequence.

In some embodiments, the impervious concrete structure layer is sequentially provided with a drainage layer, a fine stone concrete layer and a decorative layer.

Compared with the prior art, the technical scheme has the following characteristics and beneficial effects:

(1) the utility model discloses a take exempt from to tear open drainage prefabricated plate of indulging horizontal recess, in being fixed in vertical recess through flexible bandage behind the anti geotechnological cloth of straining of foraminiferous drain pipe outsourcing, drainage is assisted in the combination of adherence drain bar area, can improve lateral wall drainage efficiency.

(2) The utility model discloses an adjustable removable interim strut, accessible screw thread adjusting length plays interim fixed and supplementary fixed action.

Drawings

Fig. 1 is a schematic structural diagram of a foundation pit according to an embodiment of the present invention.

Fig. 2 is a side wall structure view of the foundation pit.

Fig. 3 is a bottom structure view of the foundation pit.

Fig. 4 is a structural body diagram at a floor slab.

Fig. 5 is a schematic structural view of the disassembly-free drainage precast slab.

FIG. 6 is an enlarged view of a perforated drain pipe.

Fig. 7 is a layout of an adjustable detachable temporary bracket.

Wherein: 1-wall-attached drain board strip, 2-prefabricated assembled water collecting pit, 3-perforated drain pipe, 4-disassembly-free drain precast slab, 5-waterproof coiled material, 6-longitudinal groove, 7-flexible bandage, 8-transverse groove, 9-drain cushion layer, 10-isolation layer, 11-impervious concrete structure layer, 12-fine aggregate concrete cushion layer, 13-water filtering layer, 14-decorative layer, 15-reverse filtering geotextile, 16-fixing screw, 17-adjustable detachable temporary support, 18-thread, 19-support cushion plate and 20-waterproof rubber pad,

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purposes of limitation.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

As shown in fig. 1 to 6, the structure of the prefabricated assembled drainage dado plate for the side wall of the foundation pit is shown, the prefabricated assembled drainage dado plate for the side wall of the foundation pit is arranged in the foundation pit, and the structure thereof includes: wall-attached drainage slab band (1), foraminiferous drain pipe (3), exempt from to tear open drainage prefabricated plate (4), waterproofing membrane (5), adjustable removable interim strut (17), set gradually drainage bed course (9) at the bottom of the foundation ditch, isolation layer (10), fine stone concrete layer (12), waterproofing membrane (5) and impervious concrete structure layer (11), set gradually water filtering layer (13) again on impervious concrete structure layer (11), fine stone concrete layer (12) and decorative layer (14), waterproofing membrane (5), exempt from to tear open drainage prefabricated plate (4), wall-attached drainage slab band (1) sets gradually at the foundation ditch lateral wall from outer to inner.

And (4) vertically or obliquely installing the disassembly-free drainage precast slab according to the excavation shape of the foundation pit. As shown in figure 5, the outer side surface of the non-dismantling drainage precast slab (4) is provided with a longitudinal groove (6) and a transverse groove (8), wherein the longitudinal groove (6) and the transverse groove (8) are vertically crossed, a drainage pipe (3) with holes is fixed in the longitudinal groove (6), an adherence drainage slab band (1) is arranged outside the non-dismantling drainage precast slab (4) to assist drainage in combination, and a gap at the outer side of the non-dismantling precast slab (4) is filled with fine sand.

Wherein, the width of vertical recess (6) and horizontal recess (8) is than foraminiferous drain pipe (3) external diameter 2 ~ 3mm wide, and foraminiferous drain pipe (3) outsourcing is fixed in vertical recess (6) through flexible bandage (7) after anti-geotechnological cloth (15). Namely, the drainage pipe (3) with the hole is inserted into the longitudinal groove (6), and the drainage pipe (3) with the hole is fixed in the longitudinal groove (6) by the flexible bandage (7). The drainage pipe (3) with the hole extends into a drainage cushion layer (9) at the bottom of the foundation pit.

The joint of the non-dismantling drainage precast slabs (4) is a rabbet, a plurality of non-dismantling drainage precast slabs (4) are connected by fixed screws (16) after being lapped, and a waterproof rubber pad (20) is arranged at the lapping position of the rabbet.

Adjustable detachable temporary brackets (17) are arranged in the foundation pit, and the two ends of each adjustable detachable temporary bracket (17) respectively support the side walls of the foundation pit at the two sides. As shown in fig. 7, the adjustable detachable temporary strut (17) comprises two connected stay bars, the two stay bars are connected through a thread (18), and strut backing plates (19) are arranged at two ends of the adjustable detachable temporary strut (17).

Wherein the length of the adjustable and detachable temporary strut (17) is adjusted by threads (18), and strut backing plates (19) are arranged at two ends of the adjustable and detachable temporary strut to support the side wall of the foundation pit, so that the adjustable and detachable temporary strut has the functions of temporary fixation and auxiliary fixation.

As shown in figure 6, the perforated drain pipe (3) adopts a PVC-U pipe with a longitudinal hole, the pipe part is wrapped by the reverse filter geotextile (15) to avoid blockage, and the perforated drain pipe (3) is embedded in the longitudinal groove (6) of the disassembly-free drainage precast slab (4).

As shown in fig. 3-4, a drainage cushion layer (9) with the thickness of 100mm, a tricolor cloth isolation layer (10), a C20 fine stone concrete layer (12) with the thickness of 50 mm, a modified asphalt waterproof coiled material (5) with the thickness of 3+3mm and an S6 anti-permeability concrete structure layer (11) are sequentially arranged at the bottom of a foundation pit. As shown in figure 3, the floor slab is sequentially provided with a water filtering layer (13), a fine stone concrete layer (12) and a decorative layer (14), and the side wall of the foundation pit is provided with a non-dismantling drainage precast slab (4). The modified asphalt waterproof coiled material (5) horizontally extends for 500mm, and the drainage layer (13) is manufactured according to the basement bottom plate drainage layer node.

The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention.

Claims

1. The utility model provides a prefabricated assembled drainage dado board of foundation ditch lateral wall, sets up in the foundation ditch, its characterized in that includes:

the wall-attached drainage plate strip (1), a drainage pipe (3) with holes, a non-dismantling drainage precast slab (4), a waterproof coiled material (5) and an adjustable detachable temporary support frame (17);

the waterproof coiled material (5), the disassembly-free drainage precast slab (4) and the wall-attached drainage slab band (1) are sequentially arranged on the side wall of the foundation pit from outside to inside, and two ends of the adjustable detachable temporary support frame (17) respectively support the side wall of the foundation pit at two sides; the outer side surface of the non-dismantling drainage precast slab (4) is provided with a longitudinal groove (6) and a transverse groove (8), wherein the longitudinal groove (6) and the transverse groove (8) are vertically crossed, and a drainage pipe (3) with a hole is fixed in the longitudinal groove (6).

2. Prefabricated drainage dado panel of foundation pit side wall according to claim 1, characterized in that the perforated drainpipe (3) is wrapped with a geotextile (15) and fixed in the longitudinal groove (6) by a flexible bandage (7).

3. Prefabricated drainage dado panel of foundation pit side wall according to claim 1, characterized in that the perforated drainpipe (3) extends into the drainage mat (9) at the bottom of the foundation pit.

4. The prefabricated assembly type drainage dado plate of the foundation pit side wall according to claim 1, wherein the width of the longitudinal grooves (6) and the width of the transverse grooves (8) are 2-3 mm wider than the outer diameter of the drainage pipe (3) with holes.

5. The prefabricated assembled drainage dado panel of foundation pit side wall according to claim 1, characterized in that the joint of the non-dismantling drainage precast slab (4) is a tongue-and-groove, and a plurality of non-dismantling drainage precast slabs (4) are connected by fixing screws (16) after being lapped.

6. The prefabricated assembled drainage dado panel of foundation pit side wall according to claim 5, characterized in that waterproof rubber pads (20) are arranged at the rabbet overlapping positions.

7. The prefabricated assembled drainage dado plate of foundation pit side wall according to claim 1, characterized in that the adjustable detachable temporary strut (17) comprises two connected stay bars, the two stay bars are connected through screw threads (18), and strut backing plates (19) are arranged at two ends of the adjustable detachable temporary strut (17).

8. The prefabricated assembled drainage dado plate of foundation pit side wall according to claim 1, characterized in that, the foundation pit bottom sets up drainage bed course (9), isolation layer (10), fine stone concrete layer (12), waterproofing membrane (5) and impervious concrete structure layer (11) in proper order.

9. The prefabricated assembled drainage dado panel of foundation pit side wall according to claim 1, wherein the impervious concrete structure layer (11) is sequentially provided with a water filtering layer (13), a fine stone concrete layer (12) and a decorative layer (14).

10. The prefabricated assembled drainage dado panel of foundation pit side wall according to claim 1, characterized in that the perforated drain pipe (3) is made of PVC-U pipe with longitudinal hole, the pipe part is wrapped by the anti-filtration geotextile (15), and the perforated drain pipe (3) is embedded in the longitudinal groove (6) of the non-dismantling drainage precast slab (4).