Finished foundation pit flow guide and water seepage device convenient to construct
By installing internal and external filter screens on the outside of the PVC drainage pipe and filling it with coarse sand, the problems of cumbersome construction and easy clogging of traditional foundation pit drainage are solved, achieving efficient foundation pit seepage discharge and convenient construction.
Patent Information
- Application Number
- CN202520079205.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-14
AI Technical Summary
Traditional foundation pit drainage construction methods are cumbersome to operate, the filling is not dense and it is easy to get clogged, which cannot meet the requirements of modern foundation pit engineering for efficient drainage and convenient construction.
The system uses PVC guide pipes with internal and external filter screens, and fills the space between them with coarse sand to form a continuous filter layer. It is fixed into an integral structure using seepage holes and clamps, and is set at an angle to facilitate construction.
It achieves excellent water filtration and mud separation functions, prevents clogging, improves construction efficiency and progress, and ensures effective drainage of seepage water from the foundation pit.
Smart Images
Figure CN223706522U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the foundation pit support construction technical field, concretely relates to a finished product foundation pit flow guide water seepage device convenient for construction. BACKGROUND
[0002] As an important foundation project in building construction, the main function of foundation pit engineering is to ensure the safety and stability of underground structure construction. During the excavation of the foundation pit, groundwater often leads to water accumulation in the foundation pit, which not only affects the construction progress, but also may cause a series of problems such as reduction of soil strength, deformation of the foundation pit, deformation of the supporting structure, etc. In severe cases, it may even cause the collapse of the foundation pit, uneven settlement of surrounding buildings, etc. Through reasonable and effective drainage measures, the groundwater in the foundation can be discharged in time, effectively reducing the water content of the soil and improving the stability of the soil, which not only ensures the smooth progress of the construction, but also prevents various geological disasters, and is beneficial to improve the bearing capacity of the foundation and the construction quality of the subsequent structure.
[0003] The traditional foundation pit drainage construction method is to install a drainage pipe in the excavated drainage hole and fill coarse sand and gravel around it to achieve water diversion and drainage. However, this scheme has obvious technical limitations. On the one hand, the construction process is complicated and time-consuming. The drainage holes are usually vertically or obliquely arranged. When filling coarse sand and gravel, it is not only difficult to operate, but also cannot guarantee the compactness and uniformity of the filling. On the other hand, the conventional foundation pit drainage hole has poor water filtration and mud separation function. In the long-term use process, the mud and sand are easy to invade and block the drainage pipe, causing the drainage system to fail, which is difficult to meet the requirements of modern foundation pit engineering for efficient drainage and construction convenience. CONTENT OF THE UTILITY MODEL
[0004] In view of the above defects existing in the prior art, a finished product foundation pit flow guide water seepage device convenient for construction is provided, which has good water filtration and mud separation, flow guide and water seepage functions, and can effectively control the discharge path of foundation pit water seepage for a long time.
[0005] The technical scheme adopted by the utility model to solve the above technical problems is:
[0006] A finished product foundation pit flow guide water seepage device convenient for construction, characterized by comprising a PVC flow guide pipe, an inner filter screen, an outer filter screen and a filter layer, the pipe wall of the PVC flow guide pipe is densely covered with water seepage holes, the inner filter screen is tightly wrapped around the outer wall of the PVC flow guide pipe, the outer filter screen is coaxially sleeved on the outer side of the inner filter screen, and the filter layer is filled between the inner filter screen and the outer filter screen, and the inner filter screen and the outer filter screen are tightened by a plurality of fasteners arranged axially along the PVC flow guide pipe.
[0007] According to the above technical scheme, the water seepage holes are arranged in rows along the circumferential direction of the PVC flow guide pipe, and the water seepage holes in each row are uniformly and spacedly arranged along the axial direction.
[0008] According to the technical scheme, the diameter of the water seepage hole is 5-10mm.
[0009] According to the technical scheme, the radial thickness of the filter layer is 40-70mm, and the filter layer is filled with coarse sand with a particle size of 0.5-2mm.
[0010] According to the technical scheme, the inner filter screen and the outer filter screen are aligned with the bottom of the PVC flow guide pipe, and the inner filter screen and the outer filter screen extend upwards to completely cover the water seepage hole area on the PVC flow guide pipe.
[0011] According to the technical scheme, the inner filter screen and the outer filter screen are both made of high-toughness non-elastic screen cloth, and the mesh size of the screen cloth is smaller than the particle size of the coarse sand in the filter layer.
[0012] According to the technical scheme, the fastener is a stainless steel clamp, and a plurality of clamps are arranged along the axial direction of the PVC flow guide pipe and are arranged from the inner to the outer to tighten the inner filter screen and the outer filter screen.
[0013] According to the technical scheme, the water seepage device is arranged obliquely downward, and the inclination angle is 5°-10°.
[0014] The utility model has the following beneficial effects:
[0015] 1. The utility model provides a finished product foundation pit flow guide water seepage device convenient for construction is equipped with inner filter screen and outer filter screen outside PVC flow guide pipe, and is filled with coarse sand between both, forms continuous filter layer, can effectively intercept mud block and slurry and other impurities and enter PVC pipeline to cause blockage, has good filter water and separates mud and flow guide water seepage function, can long -term effectively control the discharge path of foundation pit water seepage.
[0016] 2. The water seepage rate of the inner filter screen and the outer filter screen in the utility model is high, the drainage effect is good, the whole flow guide water seepage device is fixed into a whole through the clamp, and the structure is simple and compact, which is convenient for transportation and installation, can also simplify the construction process, greatly improves the construction efficiency and construction progress on the basis of guaranteeing the construction quality. DRAWINGS
[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as limiting the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.
[0018] Fig. 1 The structure diagram of the finished product foundation pit flow guide water seepage device convenient for construction provided by the utility model embodiment is shown.
[0019] Fig. 2 A PVC diversion pipe schematic view of the finished product foundation pit diversion water seepage device convenient for construction is provided for the embodiments of the present application.
[0020] Fig. 3 A cross-sectional schematic view of the finished product foundation pit diversion water seepage device convenient for construction is provided for the embodiments of the present application.
[0021] In the figure: 1, PVC diversion pipe; 11, water seepage hole; 2, inner filter screen; 3, outer filter screen; 4, coarse sand; 5, clamp. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0023] As shown in the drawings, Figs. 1-3 The present application provides a finished product foundation pit diversion water seepage device convenient for construction, comprising a PVC diversion pipe 1, an inner filter screen 2, an outer filter screen 3 and a filter layer, a plurality of water seepage holes 11 are formed on the pipe wall of the PVC diversion pipe 1, the inner filter screen 2 is sleeved on the outer wall of the PVC diversion pipe 1 and tightly adheres, the filter layer is arranged between the outer filter screen 3 and the inner filter screen 2, and the inner filter screen 2 and the outer filter screen 3 are tightened by a plurality of fasteners arranged along the axial direction of the PVC diversion pipe 1. The entire diversion water seepage device is fixed into a whole body by a plurality of fasteners, has a simple and compact structure design, has good water filtering and mud separating and diversion water seepage functions, and can effectively control the discharge path of foundation pit water seepage for a long time.
[0024] In the embodiments, as shown in the drawings, Fig. 2 A plurality of water seepage holes 11 are formed on the PVC diversion pipe 1, the distribution range of the water seepage holes 11 in the length direction of the PVC diversion pipe 1 is adapted to the soil penetration depth, the water seepage holes 11 are circular and uniformly distributed in the circumferential direction of the pipe wall of the PVC diversion pipe 1, so as to ensure that the water seepage in each direction can smoothly flow into the PVC diversion pipe 1; the diameter of the water seepage holes 11 is 5-10 mm, which can effectively ensure the drainage efficiency of the device. In actual engineering application, workers can also punch the pipe wall around the PVC diversion pipe 1 by using an electric drill according to the on-site demand, and flexibly adjust the effective soil penetration depth of the device.
[0025] In the embodiment, the thickness of the filter layer is 40-70mm, and the inside is filled with coarse sand 4 with a particle size of 0.5-2mm, or can be filled with gravel with an appropriate particle size according to the actual situation, and the filling should ensure that it is compact and full, and avoid voids; the inner filter screen 2 and the outer filter screen 3 are both made of high-toughness inelastic screen cloth, which can prevent the screen cloth from being broken under the extrusion and friction of the coarse sand 4, and can effectively reduce the deformation and maintain the integrity of the overall structure of the device, and the mesh on the inner filter screen 2 and the outer filter screen 3 can improve the water permeability, the size of the mesh is smaller than the particle size of the filled coarse sand 4, which prevents the coarse sand 4 from entering the PVC diversion pipe 1 through the water permeation hole 11, and prevents the loss of the coarse sand 4 from causing the device to fail.
[0026] In the embodiment, the centers of the inner filter screen 2 and the outer filter screen 3 are both located at the bottom of the PVC diversion pipe 1, and extend upwards to completely cover the water permeation hole 11 area of the PVC diversion pipe 1. When the device is specifically made, first, the center of the inner filter screen 2 is aligned with the bottom of the PVC diversion pipe 1, then the inner filter screen 2 is pulled up to completely cover the water permeation hole 11 area of the PVC diversion pipe 1, then a plurality of clamps 5 are arranged at intervals, and the inner filter screen 2 is fixed by the clamps 5 to ensure the tightness of the wrapping and prevent the inner filter screen 2 from falling off; the outer filter screen 3 is installed in the same way as the inner filter screen 2, and after the filter layer is densely filled with coarse sand 4, a plurality of clamps 5 are also arranged at intervals outside the outer filter screen 3, and the outer filter screen 3, the filter layer, the inner filter screen 2 and the PVC diversion pipe 1 are fastened into a whole, forming a finished water permeation device that is simple to make, easy to install and excellent in water permeation and diversion function.
[0027] In the embodiment, a downwardly inclined drainage hole is excavated on the side wall of the foundation pit during construction, the inclination angle of the drainage hole is controlled within 5°-10°, then the finished water permeation device is directly inserted into the drainage hole and fixed, which can effectively drain underground water. The device has a simple construction process, which can greatly improve the construction efficiency and construction progress while ensuring the construction quality.
[0028] The embodiments described above are part of the embodiments of the present application, not all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.
Claims
1. A prefabricated foundation pit drainage and seepage device that is easy to construct, characterized in that: The device includes a PVC guide pipe, an inner filter screen, an outer filter screen, and a filter layer. The PVC guide pipe has numerous perforations on its wall. The inner filter screen is tightly wrapped around the outer wall of the PVC guide pipe. The outer filter screen is coaxially sleeved on the outside of the inner filter screen. A filter layer is filled between the inner and outer filter screens. The inner and outer filter screens are secured by multiple fasteners spaced apart along the axial direction of the PVC guide pipe.
2. The prefabricated foundation pit drainage and seepage device that is easy to construct according to claim 1, characterized in that: The seepage holes are arranged in rows at intervals along the circumference of the PVC guide pipe, and the seepage holes in each row are evenly spaced along the axial direction.
3. The prefabricated foundation pit drainage and seepage device according to claim 1, characterized in that: The diameter of the seepage hole is 5-10 mm.
4. The prefabricated foundation pit drainage and seepage device according to claim 1, characterized in that: The radial thickness of the filter layer is 40-70 mm, and the filter layer is filled with coarse sand with a particle size of 0.5-2 mm.
5. A prefabricated foundation pit drainage and seepage device that is easy to construct according to claim 1, characterized in that: The centers of the inner and outer filter screens are aligned with the bottom of the PVC guide pipe, and the inner and outer filter screens extend upwards to completely cover the seepage hole area on the PVC guide pipe.
6. A prefabricated foundation pit drainage and seepage device that is easy to construct according to claim 1, characterized in that: Both the inner and outer filter screens are made of high-toughness, non-elastic mesh fabric, and the mesh size of the mesh fabric is smaller than the particle size of the coarse sand in the filter layer.
7. A prefabricated foundation pit drainage and seepage device that is easy to construct according to claim 1, characterized in that: The fasteners are stainless steel clamps, and multiple clamps are spaced apart along the axial direction of the PVC guide pipe to tighten the inner and outer filter screens from the inside out.
8. A prefabricated foundation pit drainage and seepage device that is easy to construct according to claim 1, characterized in that: The infiltration device is set at an angle of 5°-10° downwards.