CN211143046U - Water-blocking and draining anti-floating construction structure - Google Patents
Water-blocking and draining anti-floating construction structure Download PDFInfo
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- CN211143046U CN211143046U CN201922006496.4U CN201922006496U CN211143046U CN 211143046 U CN211143046 U CN 211143046U CN 201922006496 U CN201922006496 U CN 201922006496U CN 211143046 U CN211143046 U CN 211143046U
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Abstract
The utility model relates to the technical field of building engineering, in particular to a water-blocking and drainage anti-floating construction structure; the adopted technical scheme is as follows: a water-drainage-resistant anti-floating construction structure comprises a plain concrete layer, wherein the plain concrete layer is laid at the bottom of a fertilizer tank; a protective layer, a graded crushed stone layer and a fluid state solidified soil layer are sequentially paved on the plain concrete layer; and a water filtering pipe is embedded in the graded broken stone layer and provided with a plurality of water inlet holes, and the water filtering pipe is used for leading water in the fertilizer tank out of the fertilizer tank. The utility model discloses can cut off the relation of infiltration and groundwater on the earth's surface to prevent groundwater water pressure increase. Simultaneously, lay the level and join in marriage the metalling between protective layer and flow state solidification layer to bury the strainer in the level and join in marriage the metalling underground, discharge after filtering the groundwater that oozes and upwelling in order to be subsurface, thereby release the underground foundation buoyancy of building, the buoyancy of great reduction underground foundation plays the effect of anti superficial decompression. The method has the characteristics of low construction cost and short construction period.
Description
Technical Field
The utility model relates to a building engineering technical field, concretely relates to hinder anti construction structures that floats of drainage.
Background
The construction quality of the foundation is greatly influenced by the backfill construction of the construction project. According to related researches, the ground collapse caused by the defect of backfill construction quality in the construction of building construction project accounts for about 90 percent of the ground collapse. The condition that the quality control of backfill soil is not tight generally exists in the backfill soil construction of the building engineering, so that the water content, the dry density and the like in a soil layer after the backfill soil construction do not meet the standards, and rubber soil is easily formed after filling. In addition, in project backfill construction operation, due to the fact that a matched tamping mode is lacked or effective equipment cannot be used for tamping in a large number of narrow areas, surface leveling and tamping are carried out after one-time loose filling during construction, so that backfill does not meet related design requirements after the project backfill construction operation is completed, great difficulty is brought to subsequent leveling and modification, the problems are not solved well, and a large amount of manual tamping and long technical intermittence time are consumed.
In addition, partial projects are often hidden troubles for structural quality and safety due to overlarge buoyancy because of abundant underground water. Aiming at the problems, the construction mode adopted in large quantity is anti-floating anchor rod construction, the anti-floating anchor rod is required to be anchored in a hard rock body and is not suitable for soft rock and soil body, and the damage is usually the damage of the anchored rock body; because the local anchor rods are dense, the anchor rod construction is inconvenient; the reinforcing bars of the bottom plate and the beam plate of the basement are large. Therefore, the anti-floating anchor rod has the defects of complex construction process, high construction cost input, long construction period and the like, and the construction process cannot achieve the expected effect in construction projects with short construction periods.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned current building engineering project backfill construction process complicated, drop into height, engineering period long, the big technical problem of the buoyancy that the building receives, the utility model provides a hinder anti construction structure that floats of drainage can reduce the impervious anti pressure of floating of the anti water board of basement, have that the construction is simple, construction cycle is short, the cost is low, anti pressure of floating is little, engineering structure factor of safety is high characteristics.
The utility model discloses a following technical scheme realizes:
A water-drainage-resistant anti-floating construction structure comprises a plain concrete layer, wherein the plain concrete layer is laid at the bottom of a fertilizer tank; a protective layer, a graded crushed stone layer and a fluid state solidified soil layer are sequentially paved on the plain concrete layer; and a water filtering pipe is embedded in the graded broken stone layer and provided with a plurality of water inlet holes, and the water filtering pipe is used for leading water in the fertilizer tank out of the fertilizer tank.
The utility model discloses a plain concrete layer, protective layer, flow state solidification soil layer cut off the relation of infiltration and groundwater on the earth's surface to prevent groundwater water pressure increase. Simultaneously, lay the level and join in marriage the metalling between protective layer and flow state solidification layer to bury the strainer in the level and join in marriage the metalling underground, discharge after filtering the groundwater that oozes and upwelling in order to be subsurface, thereby release the underground foundation buoyancy of building, the buoyancy of great reduction underground foundation plays the effect of anti superficial decompression.
As a specific embodiment of the graded crushed stone layer, the graded crushed stone layer comprises a first-stage crushed stone layer and a second-stage crushed stone layer, and the strainer is positioned between the first-stage crushed stone layer and the second-stage crushed stone layer. On the one hand, the construction of burying underground of strainer is convenient for, on the other hand can ensure that the upper and lower both sides of strainer all have sufficient gradation rubble to the impurity filtering of the water in the structure will permeate.
As a specific embodiment of the protective layer, the protective layer comprises a concrete layer, and a waterproof layer is laid on the concrete layer.
Furthermore, a geotextile layer is laid between the graded gravel layer and the flow state solidified soil layer to prevent the groundwater from surging to the flow state solidified soil layer and prevent the flow state solidified soil from entering the graded gravel layer.
As a specific embodiment of the filter pipe, the aperture ratio of the filter pipe is more than 16%, and the filter pipe is ensured to have enough structural strength and water passing capacity.
Furthermore, the side wall of the foundation outer wall of the fertilizer groove is provided with a waterproof layer so as to prevent water in the fertilizer groove from permeating into the underground foundation of the building from the foundation outer wall.
Preferably, the side wall of the side slope of the fertilizer groove is provided with a waterproof layer so as to prevent water around the underground foundation of the building from entering the fertilizer groove.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
1. The utility model is sequentially paved with a plain concrete layer, a protective layer, a graded crushed stone layer and a flow state solidified soil layer from the bottom of the fertilizer groove; a strainer with a plurality of water inlets is embedded in the graded broken stone layer, and the strainer is provided with a plurality of water inlets. The connection between the water seepage on the earth surface and the underground water is cut off through the plain concrete layer, the protective layer and the fluid state solidified soil layer, so that the increase of the water pressure of the underground water is prevented. Simultaneously, lay the level and join in marriage the metalling between protective layer and flow state solidification layer to bury the strainer in the level and join in marriage the metalling underground, discharge after filtering the groundwater that oozes and upwelling in order to be subsurface, thereby release the underground foundation buoyancy of building, the buoyancy of great reduction underground foundation plays the effect of anti superficial decompression.
2. The fertilizer groove is backfilled with the fluid solidified soil, the fluid solidified soil can be quickly solidified, and after the fluid solidified soil is solidified and hardened, the volume of the fertilizer groove is relatively stable, the drying shrinkage is small, the water stability is good, and the like, so that the backfilled soil is prevented from sinking and the water content is not sufficient. The compaction is not in place and the like. Therefore the utility model discloses still improve work efficiency, reduced construction cost, shortened construction period. Meanwhile, the fluid-state solidified soil can fill all gaps in a narrow space and a special-shaped structure space, large-scale tamping and rolling equipment is not needed in construction, and damage to the waterproof layer in the construction process is effectively reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
Fig. 1 is a schematic structural diagram of the present invention.
Names of various parts in the drawings:
The concrete-based building block comprises a concrete layer 1, a fertilizer tank 10, a foundation outer wall 11, a protective layer 2, a 3-graded crushed stone layer 31, a first-grade crushed stone layer 32, a second-grade crushed stone layer 4, a flow-state solidified soil layer 5, a water filtering pipe 6, a geotextile layer 8, a terrace 9 and a water collecting pit.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Examples
The utility model provides a hinder drainage anti construction structures that floats, includes plain concrete layer 1, plain concrete layer 1 lays in the bottom of fertile groove 10 groove. Plain concrete layer 1 is gone up and has been laid protective layer 2, graded rubble layer 3, flow state solidification soil layer 4 in proper order, and what know is, still laid terrace 8 above flow state solidification soil layer 4. And a strainer 5 is embedded in the graded crushed stone layer 3, the strainer 5 is provided with a plurality of water inlets, and the strainer 5 is used for leading water in the fertilizer tank 10 out of the fertilizer tank 10.
The utility model discloses a plain concrete layer 1, protective layer 2, flow state solidification soil layer 4 cut off the relation of infiltration and groundwater on the earth's surface to prevent groundwater water pressure increase. Simultaneously, lay graded rubble layer 3 between protective layer 2 and flow state solidified layer 4 to bury strainer 5 underground in graded rubble layer 3, discharge to building underground foundation (be the basement usually) in through strainer 5 after filtering the groundwater that oozes and upwelling in the subsurface, thereby release building underground foundation buoyancy, great reduction building underground foundation's buoyancy plays the effect of anti superficial decompression.
The anti-floating anchor rod adopted in the prior art has high requirement on geological conditions and is complex to construct; meanwhile, the buoyancy problem of underground water is not fundamentally solved, the underground foundation of the building is fixed through the anti-floating anchor rods, the anti-floating anchor rods bear higher pressure all the time, and if the buoyancy of the underground water is further increased, the risk of incapability of anchoring exists; and the bolt is in tension at all times, there is a risk of tensile failure.
It should be noted that the fluidized solidified soil is used as a novel backfill material. The working performance of the soil backfilling agent is better than that of the traditional backfilling soil, and the strength can be adjusted between 0.5MPa and 10MPa according to actual needs so as to meet the requirements of foundation backfill, foundation pit backfill and fertilizer groove backfill strength. The strength of the solidified soil is increased relatively quickly, and the solidified soil can be put on the ground for construction in the next step after pouring is completed for 12-24 hours, so that the construction period is greatly shortened. When the solidified soil is mixed, additives (main components are calcium oxide, activated alumina and silicon oxide) can be added according to soil quality and design requirements, the strength increase speed is controlled, and the strength and the fluidity are changed by adjusting the mixing proportion. After the fluid solidified soil is solidified and hardened, the volume of the fluid solidified soil has the characteristics of relative stability, small drying shrinkage, good water stability and the like, and compared with the natural backfilled soil, the fluid solidified soil also has impermeability after being solidified and hardened.
Therefore, the fertilizer tank 10 is backfilled with the fluid solidified soil, the fluid solidified soil can be quickly solidified, and after the fluid solidified soil is solidified and hardened, the volume has the characteristics of relative stability, small drying shrinkage, good water stability and the like, so that the defects of subsidence, insufficient water content, insufficient compaction and the like of the backfilled soil are overcome. The working efficiency is improved, the construction cost is reduced, and the construction period is shortened. Meanwhile, the fluid-state solidified soil can fill all gaps in a narrow space and a special-shaped structure space, large-scale tamping and rolling equipment is not needed in construction, and damage to the waterproof layer in the construction process is effectively reduced.
As a specific embodiment of the graded crushed stone layer 3, the graded crushed stone layer 3 includes a first graded crushed stone layer 31 and a second graded crushed stone layer 32, and the strainer 5 is located between the first graded crushed stone layer 31 and the second graded crushed stone layer 32. On the one hand, the construction of burying underground of strainer 5 is convenient for, on the other hand can ensure that the upper and lower both sides of strainer 5 all have sufficient gradation rubble to the impurity filtering of the water that will permeate in the structure.
Wherein, the rubble layer is joined in marriage to first order 31, second level 32 all adopt 20 ~ 30 mm's level to join in marriage the rubble and lay and form, and the second level is joined in marriage the rubble layer 32 and is located first order and joins in marriage the rubble layer 31 top, and second level joins in marriage rubble layer 32 thickness and is greater than 80cm, and first order is joined in marriage rubble layer 31 thickness and is greater than 30 cm.
As a specific embodiment of the protective layer 2, the protective layer 2 comprises a concrete layer on which a waterproof layer is laid. It will be appreciated that a concrete layer is laid over the plain concrete layer 1 to prevent the plain concrete layer 1 from being fractured, and a waterproof layer to prevent water on the ground surface from penetrating into the ground water.
Furthermore, a geotextile layer 6 is laid between the graded gravel layer 3 and the flow state solidified soil layer 4. In the embodiment, the geotextile layer 6 is formed by laying two layers of 400 g/square meter of non-woven geotextile to prevent underground water from flowing to the fluid state solidified soil layer 4. Meanwhile, the flow-state solidified soil 4 can be prevented from entering the graded gravel layer 3 during construction, and the water filtering capacity of the graded gravel layer 3 is reduced.
As a specific embodiment of the strainer 5, the opening rate of the strainer 5 is more than 16%, and the strainer is ensured to have enough structural strength and water passing capacity. In this embodiment, DN150PVC is used as the water filtering main pipe, and the aperture of the water inlet is larger than 10mm and smaller than 20cm, so as to ensure that the water in the graded crushed stone layer 3 can flow into the water filtering pipe 5 by itself.
The inlet openings are uniformly distributed on the side wall of the strainer 5, one end of the strainer 5 is sealed to prevent broken stones from entering the strainer 5, the other end of the strainer 5 extends into the underground foundation of the building, and in order to collect water discharged by the strainer 5, a permanent water collecting pit 9 (formed by integrally building the water collecting pit 9 and the underground foundation of the building) is arranged in the underground foundation of the building and is used for collection, so that centralized treatment is facilitated.
Further, a waterproof layer is arranged on the side wall of the foundation outer wall 11 of the fertilizer groove 10 to prevent water in the fertilizer groove 10 from permeating into the underground foundation of the building from the foundation outer wall. The waterproof coiled material of preferred adoption autohension is laid to the laying of waterproof layer and dropping in the construction, influence normal construction.
Preferably, the side wall of the slope of the fertilizer groove 10 is provided with a waterproof layer to prevent water around the underground foundation of the building from entering the fertilizer groove 10.
The construction method of the water-blocking, draining and anti-floating construction structure comprises the following steps:
S1, paving a waterproof layer on the surface of the foundation of the underground foundation, namely paving the waterproof layer on the surface of the side slope and the surface of the foundation, and after the underground foundation is built to form a fertilizer tank, uniformly arranging waterproof layers on two side walls of the fertilizer tank.
And S2, determining a fertilizer tank backfilling construction area, and pouring a plain concrete layer at the bottom of the construction area.
S3, after the plain concrete layer is solidified, pouring a concrete layer on the plain concrete layer; and paving a waterproof layer after the concrete is solidified to form a protective layer.
S4, paving 20-30 mm graded broken stones with the thickness larger than 30cm above the protective layer, and laying the strainer after leveling.
S5, continuously paving 20-30 mm graded broken stones, and continuously paving the broken stones after the water filter pipes are completely covered by the broken stones until the thickness of the graded broken stones is larger than 110 cm.
And S6, laying two layers of geotextiles above the graded gravel layer.
And S7, backfilling and pouring the fluid-state solidified soil layer by layer according to the backfilling depth of the fertilizer tank.
And S8, paving the terrace after the fluid-state solidified soil is solidified.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a hinder drainage anti construction structures that floats which characterized in that: the concrete fertilizer comprises a plain concrete layer (1), wherein the plain concrete layer (1) is laid at the bottom of a fertilizer tank (10);
A protective layer (2), a graded gravel layer (3) and a flow state solidified soil layer (4) are sequentially paved on the plain concrete layer (1);
The water filter pipe (5) is buried in the graded crushed stone layer (3), the water filter pipe (5) is provided with a plurality of water inlet holes, and the water filter pipe (5) is used for leading water in the fertilizer tank (10) out of the fertilizer tank (10).
2. The water-blocking, draining and anti-floating construction structure according to claim 1, wherein: the graded crushed stone layer (3) comprises a first graded crushed stone layer (31) and a second graded crushed stone layer (32), and the water filter pipe (5) is positioned between the first graded crushed stone layer (31) and the second graded crushed stone layer (32).
3. The water-blocking, draining and anti-floating construction structure according to claim 1, wherein: the protective layer (2) comprises a concrete layer, and a waterproof layer is laid on the concrete layer.
4. The water-blocking, draining and anti-floating construction structure according to claim 1, wherein: and a geotextile layer (6) is laid between the graded gravel layer (3) and the flow state solidified soil layer (4).
5. The water-blocking, draining and anti-floating construction structure according to claim 1, wherein: the opening rate of the water filter pipe (5) is more than 16 percent.
6. The water-blocking, draining and anti-floating construction structure according to claim 1, wherein: and a waterproof layer is arranged on the side wall of the foundation outer wall (11) of the fertilizer groove (10).
7. The water-blocking, draining and anti-floating construction structure according to claim 1, wherein: and a waterproof layer is arranged on the side wall of the side slope of the fertilizer groove (10).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110820720A (en) * | 2019-11-19 | 2020-02-21 | 四川省建筑机械化工程有限公司 | Water-blocking and drainage-resisting anti-floating construction structure and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110820720A (en) * | 2019-11-19 | 2020-02-21 | 四川省建筑机械化工程有限公司 | Water-blocking and drainage-resisting anti-floating construction structure and method |
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