CN114045880B

CN114045880B - Basement post-pouring belt treatment process

Info

Publication number: CN114045880B
Application number: CN202111523760.7A
Authority: CN
Inventors: 茹瑞春; 马奇立; 林王剑; 王明锋; 陶浙峰; 斯迪龙; 杨小军; 石焰秋; 寿超; 王莹; 申江会; 韩敏
Original assignee: Hangzhou Dongsheng Construction Engineering Co ltd; Hangzhou Zhongzhou Construction Engineering Group Co ltd
Current assignee: Hangzhou Dongsheng Construction Engineering Co ltd; Hangzhou Zhongzhou Construction Engineering Group Co ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2023-09-05
Anticipated expiration: 2041-12-14
Also published as: CN114045880A

Abstract

The application provides a basement post-cast strip process which comprises post-cast strip reservation stage measures, post-cast strip sealing stage measures and organized drainage measures in a terrace pouring stage. According to the application, the L-shaped PVC pipe is reserved, the water stop sleeve is sleeved on the L-shaped PVC pipe, the L-shaped PVC pipe is led to a nearby water collecting well, the floor drain cover is covered, and meanwhile, the L-shaped PVC pipe is made into an arc shape when the post-pouring belt is poured to form the collecting surface, so that the floor drain can drain automatically, the cleaning is convenient, the efficiency is improved, and meanwhile, the labor investment is reduced. In addition, the crushed stone layer and the non-woven fabrics are paved at the groove part of the post-pouring belt, the reinforced concrete protective layer is poured on the crushed stone layer, and the rice straw ropes are longitudinally and longitudinally paved before the terrace is poured and led to the drainage ditch, so that a drainage system is formed, and the ground is ensured to be dry. Meanwhile, the water stop sleeve used in the process is simple in structure, convenient to install with a reserved pipeline and high in installation efficiency; the stability and the skid resistance of the position of the metal sleeve are improved by arranging the metal sleeve.

Description

Basement post-pouring belt treatment process

Technical Field

The application belongs to the technical field of building construction, and particularly relates to a basement post-pouring zone process.

Background

The basement post-cast strip is a concrete strip which is reserved in structures such as beams, plates (including foundation slabs), walls and the like, has a certain width and is cast after a certain time in order to adapt to the influence of factors such as environmental temperature change, concrete shrinkage, uneven settlement of the structures and the like.

It is common for floor panels to extend throughout the basement and to remain long. The post-cast strip is a weak link in the actual construction process, and more common diseases such as: the post-pouring belt in the basement foundation retaining period has a large amount of accumulated water for a long time, iron parts such as water-stopping steel plates and steel bars are soaked for a long time to rust, attachments such as moss and the like on the surface of sewage and concrete are not cleaned in place, the basement area is too large, water cannot be drained in an organized manner, the manual drainage workload is huge, and especially after the post-pouring belt is closed, the structural layer is disturbed due to external factor change to generate secondary leakage and other general hidden trouble. As disclosed in chinese patent CN201910393868.5, the construction method for preventing leakage of post-pouring zone of basement is disclosed, the structure comprises a water-absorbing expansion layer, a water stop bar, a concrete cushion layer, a reinforced concrete layer, a water-absorbing layer and the like which are arranged on the post-pouring zone, so that good infiltration effect can be achieved, and meanwhile, the arranged concrete cushion layer is more beneficial to pouring and forming of subsequent concrete. However, the problems of rusting of metal components due to water accumulation in the period of post-pouring belt retention, difficult cleaning of attachments on concrete and difficult drainage of a basement are not solved.

As disclosed in chinese patent CN201810328521.8, a construction process of a post-pouring strip of a basement is disclosed, which is to fix a steel plate on a wall body of the post-pouring strip of the basement, then to perform waterproof treatment on the whole wall body of the basement, to perform earth backfill treatment on the interior of the wall body of the post-pouring strip of the basement, and to perform concrete pouring and maintenance of the post-pouring strip of the basement after the earth backfill treatment is completed. This patent also does not address the drainage problem of stagnant water during the residence time of the basement post-cast strip.

The waterproof sleeve is needed in the anti-seepage construction of the post-cast strip of the basement, and the structure is various. The existing PVC vertical pipeline is installed mostly in a mode of embedding traditional water-stop joints, and the conditions of more pipe fittings and interfaces, higher cost, multiple hidden danger points of water leakage and the like exist in the construction process. In current practical application, because of the problems of building deformation and house subsidence, the water-stop sleeve in the wall is often extremely fragile, and because most of the water-stop sleeve is of a plastic structure, the water-stop sleeve is more easily extruded and damaged by the wall.

Therefore, how to provide a process to effectively solve the cleaning problem caused by the ponding in the retaining period of the post-pouring zone of the basement, eliminate the hidden danger of water seepage caused by the water soaking and rust of the metal component, solve the problem that attachments on concrete are difficult to clean caused by sewage and other reasons, and design a stable self-protecting water stop sleeve at the same time, which is a technical problem to be solved by the people in the prior art.

Disclosure of Invention

In view of the above, the application aims to provide a basement post-cast strip process, which solves the problems that water accumulation occurs for a long time in the basement post-cast strip, a metal component is soaked in water to rust, attachments generated on concrete are difficult to clean and the like by adopting a series of measures.

In order to achieve the above purpose, the present application provides the following technical solutions:

a basement post-cast strip process comprising post-cast strip reservation stage measures, the post-cast strip reservation stage measures comprising the following measures:

measure 101: when earth excavation is carried out, an L-shaped PVC pipe is pre-buried at a reserved position of the post-pouring belt and led to a nearby water collecting well;

measure 102: the concrete pouring finishing surface of the basement bottom plate and the protective layer of post-pouring strip steel bars are enlarged;

measure 103: and after finishing the post-pouring belt cushion layer, covering with a floor drain cover.

Preferably, the basement post-cast strip process further comprises post-cast strip closing stage measures and organized drainage measures at the terrace pouring stage.

Preferably, the post-pouring strip closing stage measures include the following measures:

measure 201: before the concrete of the post-pouring belt is poured, a water-stopping sleeve is sleeved on an L-shaped PVC pipe reserved originally, then a PVC straight pipe is connected, and a floor drain cover is covered on the upper cover;

measure 202: when the post-cast strip is poured to form a receiving surface, the receiving surface is made into an arc shape, the middle position of the post-cast strip is low, and the position of the slope floor drain is found.

Preferably, the organized drainage measures in the terrace pouring stage comprise the following measures:

measure 301: the groove part of the post-pouring belt is paved by a crushed stone layer, and then non-woven fabrics are paved on the crushed stone layer;

measure 302: pouring a reinforced concrete protective layer on the non-woven fabric crushed stone cushion layer, if water seeps out, flowing to a pre-buried pipe through a floor drain, then flowing into a water collecting well, and pumping the basement through an automatic water pump in the water collecting well;

measure 303: before pouring the basement garage terrace, the basement garage terrace is longitudinally and transversely paved by adopting straw ropes and led to a drainage ditch.

Preferably, the water stop sleeve comprises a housing and a metal sleeve.

Preferably, the shell sequentially comprises a threaded pipe, a central pipe and an adapter pipe from top to bottom, wherein the three pipes have the same inner diameter; the metal sleeve comprises a metal pipe and metal wings, and the metal wings are fixed in the middle of the metal pipe in a welding mode.

Preferably, the threaded pipe, the central pipe and the adapter pipe are all made of PVC materials.

Preferably, the inner wall of the metal tube is coated with sealant and sleeved on the central tube.

Preferably, the surface of the threaded pipe is provided with threads, and the tight connection with the PVC straight pipe is realized in the post-pouring strip closing stage.

Preferably, positioning holes are formed in the outer portion of the lower end of the adapter tube at equal intervals along the circumferential direction, and 4 positioning holes are formed; 4 locating holes corresponding to the switching pipes are formed in the top ends of the L-shaped PVC pipes reserved in the post-pouring zone sealing stage, and the locating holes of the two pipes are in one-to-one tight connection through screws.

Compared with the prior art, the application has the following beneficial effects:

1. according to the basement post-pouring zone technology provided by the application, in the post-pouring zone reservation stage, the floor drain can be automatically drained through the cooperation of the PVC pipe, the water collecting well and the temporary water pump, so that the basement post-pouring zone technology is convenient to clean, and the efficiency is improved and meanwhile, the labor investment is reduced. In addition, the water-stopping steel plate, the reinforced iron member and the like can be prevented from being corroded by soaking water to influence occlusion when a rust layer is formed for pouring concrete, so that the water seepage risk is prevented.

2. According to the basement post-pouring strip process provided by the application, the post-pouring strip is made into the arc shape when the post-pouring strip is poured to form the drainage ditch, so that the drying of the basement is ensured, and the phenomenon that the floor is subjected to water, mortar paint and the like to form slurry is avoided.

3. According to the basement post-pouring zone process provided by the application, through overlapping and paving the crushed stone layer, the non-woven fabric and the reinforced concrete protective layer, hidden dangers such as secondary cracking and water seepage of a structural layer caused by disturbance of external factors such as foundation disturbance, temperature difference and secondary decoration of the basement can be effectively eliminated, and meanwhile, a drainage system which is automatically formed after the straw ropes paved vertically and horizontally before the terrace is poured are rotten ensures the drying of the ground.

4. The water stop sleeve used in the basement post-pouring zone process provided by the application has a simple structure, is convenient to install with a reserved pipeline, and improves the installation efficiency. Meanwhile, the water-stop sleeve protects the inner shell by arranging the metal sleeve, sealant is arranged between the metal sleeve and the shell, the tightness connection relation between the metal sleeve and the shell is enhanced, and the problem that the water-stop sleeve is damaged due to extrusion caused by factors such as foundation sinking is solved. The annular metal wings are arranged on the metal sleeve, so that the stability and the anti-skid function of the position of the water stop sleeve in post-pouring concrete pouring are improved, and the falling of the water stop sleeve due to the influence of external force and other factors is relieved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

FIG. 1 is a schematic diagram of post-cast strip reservation stage measures in a basement post-cast strip process provided by the application;

FIG. 2 is a schematic diagram of post-cast strip closing stage measures in a basement post-cast strip process according to the present application;

FIG. 3 is a schematic view of a post-cast strip at the closing stage of the post-cast strip in a basement post-cast strip process according to the present application;

fig. 4 is a schematic diagram of an organized drainage measure at a terrace pouring stage in a basement post-cast strip process provided by the application;

FIG. 5 is a plan view of a basement at the stage of pouring a terrace in a post-pouring zone process of the basement provided by the application;

FIG. 6 is a cross-sectional view 1-1 in a plan view of a basement at a stage of pouring a terrace in a post-pouring zone process of the basement provided by the application;

FIG. 7 is a schematic view of a water stop sleeve used in the present process;

FIG. 8 is a schematic view of the structure of the housing in the water stop sleeve used in the present process;

FIG. 9 is a schematic view of the structure of a metal sleeve in a water stop sleeve used in the present process;

in the figure: 1. an L-shaped PVC pipe; 2. a water collection well; 3. a basement floor; 4. post-pouring steel bars; 5. a protective layer; 6. a floor drain cover; 7. a water stop sleeve; 701. a threaded tube; 702. a central tube; 703. a transfer tube; 704. a metal tube; 705. a metal wing; 706. positioning holes; 8. a crushed stone layer; 9. a nonwoven fabric; 10. an automatic water pump; 11. a rice straw rope; 12. a drainage ditch; 13. a rubber water stop; 14. post-pouring micro-expansive concrete; 15. a steel plate water stop; 16. a water stop sheet; 17. covering a post-cast strip; 18. and (5) mortar.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. In the following description, specific details such as specific configurations and components are provided merely to facilitate a thorough understanding of embodiments of the application. It will therefore be apparent to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the application. In addition, descriptions of well-known functions and constructions are omitted in the embodiments for clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "this embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the "one embodiment" or "this embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: the terms "/and" herein describe another associative object relationship, indicating that there may be two relationships, e.g., a/and B, may indicate that: the character "/" herein generally indicates that the associated object is an "or" relationship.

The term "at least one" is herein merely an association relation describing an associated object, meaning that there may be three kinds of relations, e.g., at least one of a and B may represent: a exists alone, A and B exist together, and B exists alone.

It is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprise," "include," or any other variation thereof, are intended to cover a non-exclusive inclusion.

Example 1

The embodiment introduces a post-pouring zone reservation stage measure in a basement post-pouring zone process.

Referring to fig. 1, fig. 1 is a schematic diagram of post-cast strip reservation stage measures in a basement post-cast strip process according to the present application.

The post-cast strip reservation stage measures comprise the following measures:

measure 101: when earth excavation is carried out, a 75-100mm L-shaped PVC pipe 1 is pre-buried at a reserved position of a post-pouring zone and led to a nearby water collecting well 2;

measure 102: the concrete pouring finishing surface of the basement bottom plate 3 and the protective layer 5 of the post-pouring steel bar 4 are enlarged as much as possible, and the protective layer 5 is more than 5 cm;

measure 103: after the post-pouring belt cushion layer is finished, the post-pouring belt cushion layer is covered by a floor drain cover 6, is higher than the cushion layer by more than 2cm, prevents sundries such as mud from blocking the pipe, and flows into the L-shaped PVC pipe 1 to the water collecting well 2 through the floor drain if the post-pouring belt is provided with water, and is pumped and discharged by a temporary water pump.

Further, a rubber water stop 13 is arranged at the center of the basement bottom plate 3 at the post-pouring band width, and simultaneously polyvinyl chloride cement or hemp thread asphalt is used for joint filling.

Further, a steel plate water stop 15 is arranged at the joint of the post-cast micro-expansive concrete 14 and the basement bottom plate 3.

Further, a water stop sheet 16 is arranged at the joint of the L-shaped PVC pipe 1 and the water collecting well 2.

Further, mortar 18 is provided on both sides of the post-cast strip cover 17 to stop water.

Further, the period of post-cast strip retention is typically one month from the start of foundation retention to the completion of the subject.

According to the technical scheme, the floor drain can drain automatically through the measures, cleaning is convenient, and manual investment can be reduced while efficiency is improved. In addition, can also prevent that stagnant water steel sheet, steel bar iron component etc. from soaking water corrosion to prevent infiltration risk.

Example 2

Based on the above embodiment 1, this embodiment describes a post-cast strip closing stage measure in a basement post-cast strip process.

Referring to fig. 2, fig. 2 is a schematic diagram of measures of a post-pouring zone closing stage in a basement post-pouring zone process according to the present application; referring to fig. 3, fig. 3 is a schematic diagram of a post-cast strip at a closing stage of the post-cast strip in a basement post-cast strip process according to the present application;

the post-cast strip closing stage measures comprise the following measures:

measure 201: before the concrete of the post-pouring zone is poured, a water-stopping sleeve 7 is sleeved on the originally reserved L-shaped PVC pipe 1, then a PVC straight pipe is connected, and a floor drain cover 6 is covered on the upper cover;

measure 202: when the post-cast strip is poured and the surface is collected, the arc shape is preferably formed, the middle position of the post-cast strip is as low as possible, and the slope floor drain position is found.

Further, the period of post-cast strip sealing is from the post-cast strip sealing stage to the terrace pouring stage.

The technical scheme of the embodiment is that the drainage ditch is formed by the measures based on the embodiment 1, so that the drying of a basement is ensured, and the phenomenon that floor ash forms slurry due to water receiving of a terrace, mortar paint and the like is avoided.

Example 3

Based on the above embodiments 1 and 2, this embodiment describes an organized drainage measure at the stage of casting the terrace in the basement post-cast strip process.

Referring to fig. 4, fig. 4 is a schematic diagram of an organized drainage measure at a stage of pouring a terrace in a basement post-pouring zone process according to the present application; referring to fig. 5, fig. 5 is a plan view of a basement at a stage of pouring a terrace in a post-pouring zone process of the basement provided by the application; referring to fig. 6, fig. 6 is a sectional view 1-1 in a basement plan view of a stage of pouring a terrace in a basement post-cast strip process according to the present application;

the organized drainage measures at the terrace pouring stage comprise the following measures:

measure 301: the groove part of the post-pouring belt is paved by a crushed stone layer 8, and then a non-woven fabric 9 is paved on the crushed stone layer 8;

measure 302: pouring a reinforced concrete protective layer 5 on the non-woven fabric 9, if water seeps out, flowing to a pre-buried pipe through a floor drain, then flowing into the water collecting well 2, and pumping out the basement through an automatic water pump 10 in the water collecting well 2;

measure 303: before pouring the basement garage terrace, the rice straw ropes 11 with the length of 1-1.5cm are firstly adopted to be longitudinally and transversely paved and led to the drainage ditch 12, and after the rice straw ropes 11 are rotten, a drainage system is automatically formed, so that the drying of the ground is ensured.

Further, the period of organized drainage in the terrace pouring stage is after the basement terrace pouring is completed.

The technical scheme of the embodiment is based on the embodiment 1 and the embodiment 2, hidden dangers of secondary cracking, water seepage and the like of a structural layer caused by disturbance of a basement by external factors such as foundation disturbance, temperature difference, secondary decoration and the like are effectively eliminated through the measures, and meanwhile, the formation of a drainage system also ensures the drying of the ground.

Example 4

Based on the above embodiment 2, the present embodiment describes a constitution and a connection relationship of the water stop sleeve 7.

Referring to fig. 7, fig. 7 is a schematic structural diagram of a water stop sleeve used in the present process; referring to fig. 8, fig. 8 is a schematic structural diagram of a casing in a water stop sleeve used in the present process; referring to fig. 9, fig. 9 is a schematic structural diagram of a metal sleeve in a water stop sleeve used in the present process.

One type of water stop sleeve 7 used in the present process includes a housing and a metal sleeve. The shell comprises a threaded pipe 701, a central pipe 702 and an adapter pipe 703, wherein the inner diameters of the three pipes are the same, and the shell is I-shaped; the metal sleeve comprises a metal tube 704 and metal wings 705, wherein the metal wings 705 are hollow disc-shaped, and the diameter of the inner circle of the metal wings is the same as the diameter of the metal tube 704.

The inner wall of the metal pipe 704 is coated with a sealant, the sealant is sleeved on the central pipe 702, and the metal wings 705 are fixed in the middle of the metal pipe 704 in a welding mode and used for improving the stability of the water stop sleeve after post-pouring concrete pouring, so that the further stability and anti-skid functions are achieved.

Further, threads are arranged on the surface of the threaded pipe 701, and tight connection with the PVC straight pipe is achieved in the post-pouring strip sealing stage. Meanwhile, the joint of the outer walls of the two pipes is sleeved with the sealing strip, so that the water leakage phenomenon is further avoided.

Furthermore, positioning holes 706 are formed in the outer portion of the lower end of the adapter tube 703 at equal intervals along the circumferential direction, and 4 positioning holes are formed; 4 locating holes 706 corresponding to the adapter tubes 703 are formed in the top ends of the L-shaped PVC pipes reserved in the post-pouring zone sealing stage, the locating holes 706 of the two pipes are in one-to-one tight connection through screws, and meanwhile a sealing ring is further arranged at the joint of the two pipes to avoid water leakage.

Further, the threaded tube 701, the central tube 702 and the adapter tube 703 are all made of PVC material, and the housing formed by the three tubes is made by injection molding in a factory.

The water stop sleeve provided by the embodiment comprises a shell and a metal sleeve, is simple in structure, is convenient to install with a reserved pipeline, and improves the installation efficiency. Meanwhile, the water-stop sleeve protects the inner shell by arranging the metal sleeve, sealant is arranged between the metal sleeve and the shell, the tightness connection relation between the metal sleeve and the shell is enhanced, and the problem that the water-stop sleeve is damaged due to extrusion caused by factors such as foundation sinking is solved. The annular metal wings are arranged on the metal sleeve, so that the stability and the anti-skid function of the position of the water stop sleeve in post-pouring concrete pouring are improved, and the falling of the water stop sleeve due to the influence of external force and other factors is relieved.

While the application has been described with respect to preferred embodiments thereof, it will be understood by those skilled in the art that various modifications and additions may be made without departing from the scope of the application. Equivalent embodiments of the present application will be apparent to those skilled in the art having the benefit of the teachings disclosed herein, when considered in the light of the foregoing disclosure, and without departing from the spirit and scope of the application; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present application still fall within the scope of the technical solution of the present application.

Claims

1. A basement post-cast strip process, characterized in that: the method comprises post-pouring zone reservation stage measures and post-pouring zone sealing stage measures, wherein the post-pouring zone reservation stage measures comprise the following measures:

measure 101: when earth excavation is carried out, an L-shaped PVC pipe (1) is pre-buried at a reserved position of the post-pouring belt and led to a nearby water collecting well (2);

measure 102: a protection layer (5) of the concrete pouring completion surface of the basement bottom plate (3) and the post-pouring steel bar (4) is enlarged;

measure 103: after finishing the post-pouring belt cushion layer, covering with a floor drain cover (6) and making the floor drain cover be 2cm higher than the cushion layer surface;

a rubber water stop belt (13) is arranged at the center of the basement bottom plate (3), and simultaneously polyvinyl chloride cement and hemp thread asphalt are used for joint filling;

mortar (18) is arranged on two sides of a post-pouring belt cover (17) arranged on the basement bottom plate (3) for water blocking;

the post-cast strip closing stage measures comprise the following measures:

measure 201: before the post-pouring belt concrete is poured, a water-stopping sleeve (7) is sleeved on the originally reserved L-shaped PVC pipe (1), then a PVC straight pipe is connected, and a floor drain cover (6) is covered on an upper opening;

measure 202: when the post-pouring belt is poured to form a receiving surface, the receiving surface is made into an arc shape, the middle position of the post-pouring belt is low, and the position of the slope floor drain is found;

the water stop sleeve (7) comprises a shell and a metal sleeve;

the shell sequentially comprises a threaded pipe (701), a central pipe (702) and an adapter pipe (703) from top to bottom, wherein the inner diameters of the three pipes are the same, and the shell is I-shaped; the metal sleeve comprises a metal tube (704) and metal wings (705), wherein the metal wings (705) are fixed in the middle of the metal tube (704) in a welding mode;

the inner wall of the metal tube (704) is coated with sealant and sleeved on the central tube (702);

positioning holes (706) are formed in the outer portion of the lower end of the transfer pipe (703) at equal intervals along the circumferential direction, and 4 positioning holes are formed; 4 positioning holes (706) corresponding to the transfer pipes (703) are formed in the top ends of the L-shaped PVC pipes reserved in the post-pouring strip sealing stage, and the positioning holes (706) of the two pipes are in one-to-one corresponding tight connection through screws;

the threaded pipe (701), the central pipe (702) and the adapter pipe (703) are all made of PVC materials, and the shell formed by the three pipes is formed by mold opening and injection molding in a factory.

2. The basement post-cast strip process of claim 1, wherein: the method also comprises organized drainage measures at the terrace pouring stage, and specifically comprises the following measures:

measure 301: the groove part of the post-pouring belt is paved by a gravel layer (8), and then a non-woven fabric (9) is paved on the gravel layer (8);

measure 302: pouring a reinforced concrete protective layer on the non-woven fabric (9), if water seeps out and flows to the pre-buried L-shaped PVC pipe (1) through the floor drain, then flowing into the water collecting well (2), and drawing out the basement through an automatic water suction pump (10) in the water collecting well (2);

measure 303: before pouring the basement garage terrace, rice straw ropes (11) are longitudinally and transversely paved and led to a drainage ditch (12).

3. A basement post-cast strip process according to claim 1 or 2, characterized in that: the surface of the threaded pipe (701) is provided with threads, and the tight connection with the PVC straight pipe is realized in the post-pouring strip sealing stage.