CN104234089A - Construction method for waterproof and water-draining combination of basement - Google Patents

Abstract

The invention discloses a basement waterproof and drainage combined construction method, which includes the waterproof and hydrophobic of the basement bottom plate and the waterproof and hydrophobic of the side walls of the basement. A basement waterproof and drainage combined construction method proposed by the present invention successfully discharges all the seepage water under the foundation floor to the water collection well through the waterproof, water-repellent, drainage system of the coiled material under the foundation floor and the rigid waterproof concrete floor Inside, whenever the water level in the collection well reaches a certain height, the drainage pump will be automatically started to drain water, ensuring the dry state and normal use of the basement floor, and the drainage system of the basement foundation floor can be inserted and backfilled at any time after the construction of the basement is completed And ground construction, without having to wait until the basement is fully completed and checked for no leakage before carrying out the above work, improving work efficiency and construction period.

Description

A construction method combining waterproofing and drainage in basement

technical field

The invention belongs to the field of waterproofing and drainage in building construction, and in particular relates to a construction method combining waterproofing and drainage in a basement.

Background technique

Leakage of basement exterior walls and floors is one of the common quality problems. At present, the basement waterproof layer is mainly composed of rigid waterproof and flexible waterproof layers. Because the concrete rigid waterproof layer will inevitably produce certain micro-cracks, while the flexible waterproof layer is prone to aging due to weak lap joints, damage, membrane waterproofing and coating waterproofing, it is difficult to maintain the waterproof effect in the later stage, and in fact cannot form a real The enclosure system makes the buildings whose basement depth is below the groundwater level prone to water leakage; the traditional waterproofing methods all adopt the "blocking" method, which cannot permanently solve the water leakage problem, which seriously affects the quality of construction projects and also It brings great inconvenience to the normal use and management of the basement. the

Contents of the invention

The technical problem to be solved by the present invention is to provide a construction method combining waterproofing and drainage in basement, which has simple structure, low construction cost, combined waterproofing and drainage, can maintain a good waterproof and hydrophobic effect for a long time, and can reduce the buoyancy and drainage on the foundation floor of the basement at the same time. The water pressure of the side wall of the basement ensures the quality of the construction project.

In order to achieve the above object, the present invention provides a combined construction method for basement waterproofing and drainage, which includes the waterproofing and drainage of the basement floor and the waterproofing and drainage of the side walls of the basement, and its specific technical scheme is:

1. The waterproof and hydrophobic of the bottom plate, which includes the following construction steps:

(1) On the foundation cushion, lay in sequence from bottom to top: waterproof coiled material → waterproof protective layer, the waterproof protective layer is provided with a drainage slope of 2%, and the drainage slope is discharged to the direction of the filter ditch beside the foundation beam → stone filter Water layer → laying non-woven fabric layer → concrete cushion layer → foundation floor with rigid self-waterproof function;

(2) Set the filter ditch on the side of the beam to the node of the water collection well, and the construction sequence is as follows: widen each side of the foundation beam earthwork by 600mm → pour the foundation beam cushion layer → build 120 brick tire membranes, and apply 1:3 cement Mortar and set arcs at the positive and negative corners of the brick membrane → pour the floor cushion, and make arc corners at the junction of the floor cushion and the beam → lay waterproof membranes → waterproof protective layer, and set a drainage slope of 2% , the slope is drained to the water collection well, and two 100mm PVC pipes with a diameter of 100mm are installed at the intersection of the beams, and a galvanized filter is installed along the flow direction of the PVC pipes → masonry 120 beams with brick membrane, and 1:3 cement mortar → gravel Water filter layer → Lay non-woven fabric layer → Concrete cushion layer, pour rigid self-waterproof bottom plate 7 and foundation beam at the same time;

(3) Complete the construction of the water collection well connected to the foundation floor while pouring the rigid self-waterproof bottom plate function and the foundation beam. A water inlet hole is opened on the side of the water collection well wall, and a filter is set at the upper end of the water inlet hole. net, an automatic device drainage pump is installed in the water collection well, and the water is discharged through the drainage pipe to the rainwater well connected to the outside through the drainage pump;

2. Waterproof and hydrophobic side walls, which include the following construction steps: Simultaneous construction of the ground beam cushion and the floor cushion → 300mm waterproofing of the coiled material and waterproof connection with the side of the outer protection wall of the concrete wall panel → waterproof protection layer and a drainage slope 2%, the slope is drained to the water collection well → pour the bottom plate together with the foundation beam and the outer wall plate at a height of 500mm, set the steel plate waterstop on the wall plate, the thickness of the steel plate waterstop is 3mm → pour the wall plate concrete → build masonry 300mm away from the edge of the external wall 240mm protection wall, plastered with 1:3 cement mortar, arc angles for yin and yang corners, and build a water collection well at the same time, the distance between the side wall water collection well and the floor water collection well is 50 meters → set a centralized water inlet pipe with a diameter of 100 at the side of the water collection well, and Set up a filter at the water inlet → Set up an automatic drainage pump to drain the water to the nearest rainwater well → Protect the outer side of the wall from waterproofing, and reserve 300 for the upper part to overlap with the waterproof roof → 50mm thick extruded board coiled waterproof protective layer → Backfill soil layer by layer, fill the stone filter layer between the basement wall board and the protective wall (the height of the inner stone filter layer and the outer backfill soil are the same for backfilling each time, so as to prevent the protective wall from being squeezed and deformed), make the roof waterproof and Waterproof lap joints on side walls.

A basement waterproof and drainage combined construction method proposed by the present invention successfully drains all the seepage water under the foundation floor to the water collection well through the waterproof, water-repellent, drainage system of the coiled material under the foundation floor and the rigid waterproof concrete floor Inside, whenever the water level in the collection well reaches a certain height, the drainage pump will be automatically started to drain water, ensuring the dry state and normal use of the basement floor, and the basement floor drainage system can be inserted and backfilled at any time after the basement construction is completed And ground construction, without having to wait until the basement is fully completed and checked for no leakage before carrying out the above work, improving work efficiency and construction period.

Description of drawings

Fig. 1 is the schematic diagram of the waterproof and hydrophobic structure of the basement floor that adopts the construction method that a kind of basement waterproof and drainage proposed by the present invention combines;

Fig. 2 is a node schematic diagram of the girder side filter ditch of the basement floor waterproof and hydrophobic foundation shown in Fig. 1;

Fig. 3 is the node schematic diagram at the sump well of the basement waterproof and hydrophobic structure shown in Fig. 1;

Fig. 4 is a schematic diagram of the waterproof and hydrophobic structure of the basement exterior wall.

Detailed ways

Referring to accompanying drawing, a kind of basement waterproof and drainage combined construction method, it comprises the waterproof and hydrophobic of basement baseboard and the waterproof and hydrophobic of basement side wall, and its specific technical scheme is:

1. The waterproof and hydrophobic of the bottom plate, which includes the following construction steps:

(1) Lay the foundation cushion layer 1 from bottom to top: waterproof coiled material 2 → waterproof protective layer 3, the waterproof protective layer is provided with a drainage slope of 2%, and the drainage slope is discharged to the direction of the filter ditch beside the foundation beam → stones Water filter layer 4 → laying non-woven fabric layer 5 → concrete cushion layer 6 → foundation base plate 7 with rigid self-waterproof function;

(2) Set the filter ditch to the node of the water collection well through the beam side, and the construction sequence is: digging the foundation beam earthwork and widening each side by 600mm → pouring the foundation beam cushion layer 11 → masonry 120 brick membranes 9, and plastering 1: 3 Cement mortar and set circular arcs at the male and female corners of the 120 brick membrane → pour the floor cushion layer 1, and make arc corners at the junction of the floor cushion layer and the beam → lay waterproof coiled material 2 → waterproof protective layer 3, and set There is a drainage slope of 2%, and the slope is drained to the water collection well. When encountering the intersection of beams and beams, install two PVC pipes with a diameter of 100mm 8, and install a galvanized filter screen on the PVC pipes along the direction of the water → Masonry 120 beam brick membrane 9, wipe 1 : 3 cement mortar → gravel water filter layer 4 → laying non-woven fabric layer 5 → concrete cushion 6, pouring rigid self-waterproof bottom plate 7 and foundation beam 10 at the same time;

(3) Complete the construction of the water collection well 13 connected to the foundation floor while pouring the rigid self-waterproof floor function 7 and the foundation beam 10. A water inlet 14 is opened on the side of the wall of the water collection well, and the water inlet A strainer is arranged at the upper end of the hole, and an automatic device drainage pump 21 is housed in the described water collection well, and the water is discharged through the drainage pipe 12 through the drainage pump to the rainwater well connected to the outside;

2. Waterproof and hydrophobic side walls, which include the following construction steps: Simultaneous construction of ground beam cushion and floor cushion → Coil waterproof 2 Reserve 300mm for waterproof connection with the side of the outer protective wall of the concrete wall panel → Waterproof protective layer 3 and set The drainage slope is 2%, and the slope is drained to the water collection well → pour the bottom plate 7 together with the foundation beam 10 and the height of the outer wall plate 500mm 15 at the same time, set the steel plate water stop belt 16 on the wall plate, the thickness of the steel plate water stop belt is 3mm → pour the wall plate concrete 17 → Build 240mm protection wall 18 at a distance of 300mm from the outer wall, plaster 1:3 cement mortar, make arc angles at the inner and outer corners, and build water collection wells at the same time. In Figure 3, the distance between the two wells is 50 meters → Set up a centralized water inlet pipe with a diameter of 100 at the side of the water collection well, and set a filter screen at the water inlet → Set up an automatic drainage pump to drain water to the nearest rainwater well → Protect Waterproof 2 of the outer side membrane of the wall, 300 of the upper part is reserved for waterproof lapping with the roof → 50mm thick extruded board membrane waterproof protection layer 19 → layered backfill soil, and a stone filter layer between the basement wall and the protective wall (inner Fill the gravel filter layer and the external backfill soil to replace the backfill at the same height each time to prevent the protective wall from being squeezed and deformed), and do roof waterproofing and side wall waterproofing overlap.

A basement waterproof and drainage combined construction method proposed by the present invention successfully drains all the seepage water under the foundation floor to the water collection well through the waterproof, water-repellent, drainage system of the coiled material under the foundation floor and the rigid waterproof concrete floor Inside, whenever the water level in the collection well reaches a certain height, the drainage pump will be automatically started to drain water, ensuring the dry state and normal use of the basement floor, and the basement floor drainage system can be inserted and backfilled at any time after the basement construction is completed And ground construction, without having to wait until the basement is fully completed and checked for no leakage before carrying out the above work, improving work efficiency and construction period.

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Claims (1)

1. A construction method combining waterproofing and drainage in a basement, which includes the waterproofing and drainage of the basement floor and the waterproofing and drainage of the side walls of the basement, and its specific technical scheme is: 1. The waterproof and hydrophobic of the bottom plate, which includes the following construction steps: (1) On the foundation cushion, lay in sequence from bottom to top: waterproof coiled material → waterproof protective layer, the waterproof protective layer is provided with a drainage slope of 2%, and the drainage slope is discharged to the direction of the filter ditch beside the foundation beam → stone filter Water layer → laying non-woven fabric layer → concrete cushion layer → foundation floor with rigid self-waterproof function; (2) Set the filter ditch on the side of the beam to the node of the water collection well, and the construction sequence is as follows: widen each side of the foundation beam earthwork by 600mm → pour the foundation beam cushion layer → build 120 brick tire membranes, and apply 1:3 cement Mortar and set arcs at the positive and negative corners of the brick membrane → pour the floor cushion, and make arc corners at the junction of the floor cushion and the beam → lay waterproof membranes → waterproof protective layer, and set a drainage slope of 2% , the slope is drained to the water collection well, and two 100mm PVC pipes with a diameter of 100mm are installed at the intersection of the beams, and a galvanized filter is installed along the flow direction of the PVC pipes → masonry 120 beams with brick membrane, and 1:3 cement mortar → gravel Water filter layer → Lay non-woven fabric layer → Concrete cushion layer, pour rigid self-waterproof bottom plate 7 and foundation beam at the same time; (3) Complete the construction of the water collection well connected to the foundation floor while pouring the rigid self-waterproof bottom plate function and the foundation beam. A water inlet hole is opened on the side of the water collection well wall, and a filter is set at the upper end of the water inlet hole. net, an automatic device drainage pump is installed in the water collection well, and the water is discharged through the drainage pipe to the rainwater well connected to the outside through the drainage pump; 2. Waterproof and hydrophobic side walls, which include the following construction steps: Simultaneous construction of the ground beam cushion and the floor cushion → 300mm waterproofing of the coiled material and waterproof connection with the side of the outer protection wall of the concrete wall panel → waterproof protection layer and a drainage slope 2%, the slope is drained to the water collection well → pour the bottom plate together with the foundation beam and the outer wall plate at a height of 500mm, set the steel plate waterstop on the wall plate, the thickness of the steel plate waterstop is 3mm → pour the wall plate concrete → build masonry 300mm away from the edge of the external wall 240mm protection wall, plastered with 1:3 cement mortar, arc angles for yin and yang corners, and build a water collection well at the same time, the distance between the side wall water collection well and the floor water collection well is 50 meters → set a centralized water inlet pipe with a diameter of 100 at the side of the water collection well, and Set up a filter at the water inlet → Set up an automatic drainage pump to drain the water to the nearest rainwater well → Protect the outer side of the wall from waterproofing, and reserve 300 for the upper part to overlap with the waterproof roof → 50mm thick extruded board coiled waterproof protective layer → Backfill soil layer by layer, fill the stone filter layer between the basement wall board and the protective wall (the height of the inner stone filter layer and the outer backfill soil are the same for backfilling each time, so as to prevent the protective wall from being squeezed and deformed), make the roof waterproof and Waterproof lap joints on side walls.