CN212248391U - Seepage-proofing structure of emergency site wastewater collection facility foundation - Google Patents
Seepage-proofing structure of emergency site wastewater collection facility foundation Download PDFInfo
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- CN212248391U CN212248391U CN202020728428.9U CN202020728428U CN212248391U CN 212248391 U CN212248391 U CN 212248391U CN 202020728428 U CN202020728428 U CN 202020728428U CN 212248391 U CN212248391 U CN 212248391U
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Abstract
The utility model discloses an emergent place wastewater collection facility foundation's seepage prevention structure, include: a leveling and compacting base layer, a lower protective layer, an impermeable layer and an upper protective layer which are arranged from bottom to top and from outside to inside; the leveling and compacting base layer comprises a bottom leveling and compacting base layer and a side slope leveling and compacting base layer, and a bottom compacted clay cushion layer is arranged between the bottom leveling and compacting base layer and the lower protective layer; a plain concrete cushion layer is arranged between the bottom of the wastewater collection facility and the upper protective layer, and tamped backfill is filled between the side surface of the wastewater collection facility and the upper protective layer. Aiming at the key part of a wastewater collection facility in emergency places such as medical treatment and the like, the performance of the traditional geotechnical materials is fully utilized and optimized and combined, so that the reinforced basic anti-seepage structure of the utility model is formed; the seepage-proofing structure has the advantages that the selected geotechnical materials have wide sources and low cost, and do not contain harmful substances; and the anti-seepage structure is simple and convenient to construct, has strong operability, and can complete construction in a short time, thereby meeting the requirement of the construction period.
Description
Technical Field
The utility model belongs to the technical field of the place prevention of seepage, a seepage prevention structure is related to, concretely relates to use seepage prevention structure on emergent place wastewater collection facility basis such as medical treatment.
Background
Site seepage prevention is an important content in the aspect of construction environment protection of emergency sites such as medical treatment and the like, and site seepage prevention treatment is required in infectious disease hospitals and medical waste centralized sites according to the existing standard requirements. The waste water collecting facility is used as a temporary storage place for collecting waste water generated in the normal operation process of the special place, the basic seepage prevention is very important, and the safety of surrounding soil and underground water is directly related.
For a long time, basic anti-seepage engineering of various polluted sites is a key problem concerned by relevant practitioners, and main scenes of application of the anti-seepage engineering include refuse landfill sites, industrial sites and the like. For example, Xujialing et al propose 'a protective structure layer for preventing ground pollution', which adopts a mixture of cement, water glass, fly ash, hydrated lime and precipitated slurry as a hardening layer and is matched with a 0.01-0.25 mm PE film for the seepage-proofing protection of a polluted site; the researches of the refuse landfill site with the seepage-proofing function proposed by super people in forest construction and the seepage-proofing structure with the double-layer HDPE film composite lining for the domestic refuse landfill site with large seepage flow proposed by Xinxin et al believe that the seepage of the percolate of the refuse landfill site can be effectively improved by adopting the double-layer film structure. The research results all play an important role in respective fields.
Although there are related reports, generally speaking, the seepage prevention of emergency sites such as medical treatment and the like is different from that of conventional municipal engineering, and not only needs to meet the special requirements of some special service environments (such as special water environments, stress environments, infectivity and the like), but also has the characteristics of convenient construction, convenient material allocation and easy quality control, thereby being beneficial to solving the common problems of short construction period of emergency projects. Particularly, aiming at the special part of a wastewater collection facility in emergency places such as medical treatment and the like, a foundation anti-seepage structure which is simple to implement, remarkable in effect and rapid in construction is sought, and the important value is still achieved.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned problem that exists among the prior art, the utility model provides an anti-seepage structure of emergent place wastewater collection facility basis.
The utility model discloses an use seepage prevention structure on emergent place waste water collection facility basis such as medical treatment, include: a leveling and compacting base layer, a lower protective layer, an impermeable layer and an upper protective layer which are arranged from bottom to top and from outside to inside;
the leveling and compacting base layer comprises a bottom leveling and compacting base layer and a side slope leveling and compacting base layer, and a bottom compacted clay cushion layer is arranged between the bottom leveling and compacting base layer and the lower protective layer;
a plain concrete cushion layer is arranged between the bottom of the wastewater collection facility and the upper protective layer, and tamped backfill is filled between the side surface of the wastewater collection facility and the upper protective layer.
As a further improvement, the compaction degree of the bottom smooth compacted foundation layer is not less than 93%, the compaction degree of the side slope smooth compacted foundation layer is not less than 90%.
As a further improvement, the thickness of the bottom compacted clay cushion layer is not less than 30cm, and the permeability coefficient is not more than 1 x 10-5cm/s。
As a further improvement of the utility model, the upper protective layer and the lower protective layer are filament non-woven geotextiles, the specification of the filament non-woven geotextiles is not less than 600g/m2。
As a further improvement, the barrier layer is an HDPE geomembrane, and the thickness of the HDPE geomembrane is 1.5-2.0 mm.
As a further improvement of the utility model, the thickness of plain concrete bed course is 10 ~ 20cm, the concrete intensity of plain concrete bed course is not less than C15.
As a further improvement of the utility model, the compaction degree of the tamped backfill soil is not less than 90 percent, and the permeability coefficient is not more than 1 multiplied by 10-6cm/s。
Compared with the prior art, the beneficial effects of the utility model are that:
1. the geotechnical material adopted in the seepage-proofing structure of the utility model has wide sources, is convenient to obtain, can fully meet the special requirements of raw material allocation under the emergency situation of medical treatment and the like, and has strong applicability;
2. the utility model has simple and effective anti-seepage structure, convenient construction and strong operability, is matched with the own technical requirements and quality assurance measures of the earth material, and is beneficial to forming reinforced anti-seepage protection on the site foundation of special facilities;
3. the utility model discloses seepage prevention structure has expanded the application of traditional geotechnological material in special prevention of seepage, especially medical waste water treatment field.
Drawings
Fig. 1 is a schematic structural view of an anti-seepage structure of an emergency site wastewater collection facility foundation according to an embodiment of the present invention;
fig. 2 is a flow chart of a method for constructing an anti-seepage structure of an emergency site wastewater collection facility foundation according to an embodiment of the present invention.
In the figure:
1. leveling and compacting the foundation layer, wherein 101, the bottom of the foundation layer is leveled and compacted, and 102, the side slope is leveled and compacted; 2. compacting a clay cushion layer at the bottom; 3. a lower protective layer; 4. an impermeable layer; 5. an upper protective layer; 6. a plain concrete cushion; 7. and tamping the backfill soil.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The invention is described in further detail below with reference to the accompanying drawings:
the utility model provides an anti-seepage structure applied to the foundation of a wastewater collection facility in an emergency site such as a medical treatment, which fully utilizes the performance of the traditional geotechnical materials and optimizes and combines the geotechnical materials aiming at the key part of the wastewater collection facility in the emergency scene such as the medical treatment, thereby forming a reinforced foundation anti-seepage structure; the seepage-proofing structure has the advantages that the selected geotechnical materials have wide sources and low cost, and do not contain harmful substances; and the anti-seepage structure is simple and convenient to construct, has strong operability, and can complete construction in a short time, thereby meeting the requirement of the construction period.
Specifically, as shown in fig. 1, the utility model provides an use the seepage prevention structure in emergent place wastewater collection facility basis such as medical treatment, this seepage prevention structure can realize the comprehensive prevention of seepage of wastewater collection facility (wastewater collection pond, wastewater collection box etc.), realizes the prevention of seepage of wastewater collection facility bottom and side promptly.
Taking an underground wastewater collection facility as an example, the utility model excavates an anti-seepage pit with a side slope on the basis of the original wastewater collection facility and is divided into a bottom anti-seepage structure and a side slope anti-seepage structure; wherein, the bottom seepage prevention structure is provided with a bottom leveling and compacting base layer 101, a bottom compacted clay cushion layer 2, a lower protective layer 3, a seepage prevention layer 4, an upper protective layer 5 and a plain concrete cushion layer 6 of a leveling and compacting base layer 1 from bottom to top in sequence, and the bottom of the wastewater collection facility is placed on the plain concrete cushion layer 6. The side slope seepage-proofing structure is sequentially provided with a side slope leveling and compacting base layer 102, a lower protective layer 3, a seepage-proofing layer 4 and an upper protective layer 5 of a leveling and compacting base layer 1 from outside to inside, and rammed backfill soil 7 is filled between the upper protective layer 5 and the side wall of the wastewater collection facility.
Further, on the basis of the above-mentioned anti-seepage structure, the specific embodiment of the utility model is that:
the utility model has the advantages that the foundation layer 1 is leveled and compacted to the reinforced foundation in the anti-seepage structure, the effect of uneven settlement is controlled, and the stability of the upper structure and the structure can be increased; wherein the degree of compaction of the bottom smooth compacted base layer 101 is not less than 93%, preferably 93%; the slope leveling compaction base layer 102 has a compaction degree not less than 90%, preferably 90%.
The compacted clay layer 2, the upper protective layer 5 and the lower protective layer 3 in the anti-seepage structure of the utility model play a role in preventing the anti-seepage layer 4 from being damaged; wherein, the upper protective layer 5 and the lower protective layer 3 are filament non-woven geotextiles, and the specification of the filament non-woven geotextiles is not less than 600g/m2The thickness of the bottom compacted clay cushion layer 2 is not less than 30cm, preferably 30 cm; the permeability coefficient of the bottom compacted clay mat layer 2 is not more than 1 x 10-5cm/s, preferably 1X 10-5cm/s。
The impermeable layer 4 in the impermeable structure of the utility model is a main impermeable layer, and the permeability coefficient is reduced by 2-3 orders of magnitude compared with the traditional clay impermeable, so that sufficient guarantee can be provided for the leakage of medical wastewater; wherein, the barrier layer is HDPE geomembrane, and the thickness of HDPE geomembrane is 1.5 ~ 2.0mm, preferably 2.0 mm.
The plain concrete cushion layer 6 in the anti-seepage structure of the utility model plays a role of evenly dispersing the load of an upper structure, and avoids damaging the anti-seepage layer due to over concentrated load; the thickness of the plain concrete cushion layer 6 is 10-20 cm, preferably 20cm, and the concrete strength of the plain concrete cushion layer 6 is not less than C15, preferably C20.
The tamped backfill 7 in the anti-seepage structure of the utility model plays a role of stabilizing a wastewater collection facility, and simultaneously prevents the infiltration and accumulation of exogenous water due to low permeability; the compacted backfill 7 has a compaction degree of not less than 90%, preferably 93%, and a permeability coefficient of not more than 1X 10-6cm/s, preferably 1X 10-6cm/s。
As shown in fig. 2, the construction method of the anti-seepage structure of the present invention is:
s1, compacting the existing site foundation layer to form a smooth compacted foundation layer 1 on the surface, wherein the smooth compacted foundation layer 1 comprises a bottom smooth compacted foundation layer 101 and a side slope smooth compacted foundation layer 102;
s2, paving a bottom compacted clay cushion layer 2 on the upper part of the bottom flattened compacted foundation layer 101;
s3, laying a lower protective layer 3 on the bottom compacted clay cushion layer 2 and the upper part of the slope leveling compacted base layer 102;
s4, paving an impermeable layer 4 on the lower protective layer 3;
s5, laying an upper protective layer 5 on the upper part of the impermeable layer 4;
s6, pouring the plain concrete cushion layer 6 at the preset position on the upper part of the upper protective layer 5, and after the plain concrete cushion layer 6 meets the design strength through maintenance, installing and constructing the medical wastewater collecting facility on the upper part can be carried out.
S7, backfilling and compacting the tamped backfill soil 7 on the upper part of the upper protective layer 5 and around the medical wastewater collection facility.
The utility model has the advantages that:
the utility model fully utilizes the performance of the traditional geotechnical materials and optimizes and combines the geotechnical materials aiming at the key part of the wastewater collection facility in the emergency places such as medical treatment and the like, thereby forming the reinforced basic anti-seepage structure of the utility model; the seepage-proofing structure has the advantages that the selected geotechnical materials have wide sources and low cost, and do not contain harmful substances; and the anti-seepage structure is simple and convenient to construct, has strong operability, and can complete construction in a short time, thereby meeting the requirement of the construction period.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an anti-seepage structure of emergency site waste water collection facility basis which characterized in that includes: a leveling and compacting base layer, a lower protective layer, an impermeable layer and an upper protective layer which are arranged from bottom to top and from outside to inside;
the leveling and compacting base layer comprises a bottom leveling and compacting base layer and a side slope leveling and compacting base layer, and a bottom compacted clay cushion layer is arranged between the bottom leveling and compacting base layer and the lower protective layer;
a plain concrete cushion layer is arranged between the bottom of the wastewater collection facility and the upper protective layer, and tamped backfill is filled between the side surface of the wastewater collection facility and the upper protective layer.
2. The barrier structure of claim 1, wherein the bottom flat compacted base layer has a compaction of not less than 93% and the slope flat compacted base layer has a compaction of not less than 90%.
3. The impermeable structure of claim 1, in which the bottom compacted clay mat has a thickness of not less than 30cm and a permeability coefficient of not more than 1 x 10-5cm/s。
4. The barrier structure of claim 1, wherein the upper and lower protective layers are filament non-woven geotextiles having a gauge of not less than 600g/m2。
5. The barrier structure of claim 1, wherein the barrier layer is an HDPE geomembrane having a thickness of 1.5 to 2.0 mm.
6. The seepage-proofing structure of claim 1, wherein the thickness of the plain concrete cushion layer is 10-20 cm, and the concrete strength of the plain concrete cushion layer is not less than C15.
7. The barrier structure of claim 1, wherein the compacted backfill has a compaction of no less than 90% and a permeability coefficient of no more than 1 x 10-6cm/s。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020728428.9U CN212248391U (en) | 2020-05-07 | 2020-05-07 | Seepage-proofing structure of emergency site wastewater collection facility foundation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020728428.9U CN212248391U (en) | 2020-05-07 | 2020-05-07 | Seepage-proofing structure of emergency site wastewater collection facility foundation |
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| CN212248391U true CN212248391U (en) | 2020-12-29 |
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