CN108625404B - Basement waterproof leaking stoppage method based on grouting and internal and external dredging combination - Google Patents
Basement waterproof leaking stoppage method based on grouting and internal and external dredging combination Download PDFInfo
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- CN108625404B CN108625404B CN201810407652.5A CN201810407652A CN108625404B CN 108625404 B CN108625404 B CN 108625404B CN 201810407652 A CN201810407652 A CN 201810407652A CN 108625404 B CN108625404 B CN 108625404B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
Abstract
The invention provides a basement waterproof leaking stoppage method based on grouting and internal and external dredging combination, which comprises the following steps: grouting, and dredging the interior, namely aiming at a main water seepage source, arranging an annular main blind ditch on an excavated building surface layer, arranging a permeable first blind ditch (10) and a plurality of corresponding pressure relief ports on the edge of the main blind ditch, guiding and draining water to an originally designed water collecting pit, rechecking whether the water quantity of the water collecting pit exceeds the standard, and additionally arranging a drainage facility to form a basement sewage complete set lifting device if the water quantity of the water collecting pit exceeds the standard; secondly, for secondary water seepage sources, second permeable blind ditches (11) are uniformly arranged in each area, a small amount of water seeped from the cracks of the waterproof boards flows into the second blind ditches (11) through machine sand crushed stones or furnace slag in the surface layer of the building and then is guided to an original water collecting pit or an original nearby impermeable open ditch, and step three, peripheral dredging measures are adopted, two blind ditch water collecting wells (13) with permeable peripheries are newly manufactured, a concrete drain pipe (14) is buried in each blind ditch, and the blind ditch water collecting wells are discharged to a far-away water outlet (15).
Description
Technical Field
The invention relates to the technical field of industrial buildings and public buildings, in particular to a basement waterproof and leakage-stopping method based on grouting and internal and external dredging combination.
Background
Referring to fig. 1, the top surface and waterproof board structure of the basement column foundation in the prior art comprises a C50 impervious concrete (5) and a C30 impervious concrete (6) which are orthogonally connected, a frame column 1 and a waterproof board 2, wherein the frame column 1 and the waterproof board 2 are installed in backfill soil 4, the periphery of the waterproof board of the top surface of the basement column foundation can generate water leakage, the use safety of a basement is seriously affected, the water leakage range is analyzed, in the real basement construction, the serious water leakage can be generated at the joint between the C50 impervious concrete and the C30 impervious concrete, the waterproof board also generates a plurality of waterproof board cracks (3), the water leakage can be generated in the crack range, the reason that the water leakage occurs at the joint (position A) between the C50 impervious concrete and the C30 impervious concrete is that accumulated water at the bottom of the concrete moves upwards along with the concrete when the column foundation concrete is poured, the accumulated water is mixed with the waterproof board concrete, the slump is large, the pit is not compact, and cracks are generated by excessive shrinkage, thereby emitting water; the reason for water leakage in the crack range (B position) of the waterproof board is that the backfill soil below the waterproof board is soft and is not tamped, so that the waterproof board cracks. The top surface of a basement column foundation is not clean, so that an inclined new concrete and old concrete contact construction surface seam is formed by discontinuous pouring, the common solution in the prior art is to construct the new concrete and old concrete contact seams of a waterproof plate (2) and a frame column (1), and the seam left when a column template is dismantled is repaired in the later period of manual work. And the knowledge from a large number of construction sites: the early plugging is invalid, and the position of a main water seepage source is not found, so that the problem of water leakage of the basement cannot be effectively solved.
Disclosure of Invention
The invention is designed for overcoming the problems in the prior art, and aims to provide a basement waterproof and leakage blocking method based on grouting and internal and external dredging combination, which comprises the following steps:
grouting, comprising the following steps:
(1-1) cleaning water seepage parts of a waterproof plate (2) on the top surface of a basement column foundation, which are excavated and exposed at a main water seepage source;
(1-2) performing high-pressure grouting on the waterproof plate crack (3) and the new and old concrete construction surface crack, so as to reinforce the rust prevention and prevent the loss of components taking away the gelled structure and foundation soil;
(1-3) compacting, repairing and leveling by using C35P8 impervious concrete;
step two, internal dredging comprises two modes for a main water seepage source and a secondary water seepage source:
the method is aimed at a main water seepage source, the main water seepage source is found, firstly, a closed overhead annular main blind ditch which does not affect a garage floor and can also pocket and discharge main flowing water of the water seepage source is arranged around a water seepage source of a waterproof plate (2) on the top surface of a foundation of the main water seepage source by utilizing an excavated building surface layer, a permeable first blind ditch (10) and a plurality of corresponding pressure relief ports are arranged at the edge of the annular main blind ditch, water is guided to an originally designed sump pit, whether the water quantity of the sump pit exceeds the standard or not is rechecked, and if the water quantity exceeds the standard, a drainage facility is additionally arranged to form basement sewage complete set lifting equipment;
secondly, for a secondary water seepage source, namely a basement with small water seepage quantity in other areas, only arranging water seepage sheet areas with local small water quantity at the bottom of a building surface course, and roughly and uniformly arranging permeable second blind ditches (11) in each sheet area to ensure that the small water quantity seeped from a waterproof board crack flows into the second blind ditches (11) through machine sand crushed stones or slag in the finished building surface course and is drained to an original water collecting pit or an original nearby impermeable open ditch, wherein the second blind ditches (11) are arranged at a parking position and are cast in place through a cover plate, the surface course is covered and cannot be seen, the pavement is not arranged as far as possible, and some rooms cannot be arranged;
and thirdly, peripheral dredging measures are taken, wherein annular blind ditches (12) are arranged on the periphery of the basement, two blind ditch water collecting wells (13) with permeable peripheries are newly manufactured, a concrete drain pipe (14) with a gradient not smaller than a certain gradient is buried in a certain direction, and rainwater in the annular blind ditches is discharged to a far-away semi-yamama water outlet (15) through the blind ditch water collecting wells (13).
Preferably, the grouting operation in the step (1-2) is performed for high-pressure grouting after the surface hollowing concrete with hollowing on the surface of the waterproof board is chiseled and the crack position is aligned.
Preferably, the high-pressure grouting material is water-soluble polyurethane chemical grouting material, the water-soluble polyurethane chemical grouting material is injected into the concrete crack by utilizing mechanical high-pressure power, the water-soluble polyurethane chemical grouting material reacts with water immediately to form non-epoxy resin grout and polymer cement slurry, the formed water-soluble polyurethane chemical grouting material is guaranteed not to be diluted and washed away by water, the water in the concrete crack can be rapidly dispersed, emulsified, expanded and solidified when the water-soluble polyurethane chemical grouting material meets the concrete crack, the concrete crack is filled with the solidified elastomer, and water flow is blocked outside the concrete structure body, so that the purposes of water stopping, water stopping and rust prevention are achieved.
Preferably, the main underdrain of annular includes a plurality of outer hoops (8) that correspond of arranging on a plurality of outer hoops (7) and the outer loop of sealing that arrange along the inner ring, and a plurality of outer hoops (7) of sealing are equidistant evenly to be arranged, and a plurality of outer hoops (8) diameters of corresponding of arranging on the outer loop are the same with outer hoop (7) of sealing, and equidistant evenly to be arranged, and a plurality of four hollow angle diameters that correspond outer hoop (8) and form of arranging on a plurality of outer hoops (7) of sealing and the outer loop are the same, still includes a plurality of little column mound vertical ribs (9), the position of first underdrain (10) is to aiming at the infiltration source and is arranged.
Preferably, the additionally arranged drainage facility is a water suction pump or a submersible sewage pump (3-10), the basement sewage complete set lifting equipment comprises box type sewage lifting equipment (3-1), is connected with a toilet sewage pipe (3-2), the toilet sewage pipe (3-2) is connected with one end of the vent pipe (3-3), the other end of the vent pipe (3-3) is connected with one end of a pressure gauge (3-6) through a hose (3-4) and a flange plate (3-5), the other end of the pressure gauge (3-6) is connected with the water pump or the submersible sewage pump (3-10) through a gate valve (3-7), a check valve (3-8) and a rubber soft joint (3-9) which are connected in series in the circuit, the basement sewage complete set lifting equipment is connected with the original equipment in series through a flexible sleeve (3-11).
Preferably, the building facing is 350 a thick.
The beneficial effect of adopting above-mentioned technical scheme is: the basement is prevented from water leakage and is blocked according to the actual situation of the site based on the combination of grouting and internal and external dredging, the problem of water leakage of the basement on the site is completely cured by the method, and obvious economic and social benefits are generated.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. The objects and features of the present invention will become more apparent in view of the following description taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a diagram of the top surface of a basement column foundation, a waterproof board structure and nodes of a water supply position in the prior art;
FIG. 2 is a schematic structural view of a main annular underdrain and a branch underdrain according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a complete lifting device for basement sewage according to an embodiment of the invention;
fig. 4 is a diagram of a peripheral grooming measure device deployment according to an embodiment of the invention;
FIG. 5 is a detailed view of basement waterproofing and leaking stoppage construction according to an embodiment of the invention;
FIG. 6 is a detailed view of the construction of the first underdrain (10) and the second underdrain (11) according to the embodiment of the present invention;
fig. 7 is a plan view of an underdrain after construction according to an embodiment of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, but the present invention is not limited thereto.
The description of fig. 1 is referred to in the background section.
The background of the embodiment is a basement waterproof and leakage-stopping method based on grouting and internal and external dredging combination, which is designed for the water seepage and water overflow conditions of the underground floor of an outpatient building of a hospital, and comprises the following steps:
grouting, comprising the following steps:
(1-1) cleaning water seepage parts of a waterproof board 2 on the top surface of a basement column foundation, which are excavated and exposed at a main water seepage source;
(1-2) carrying out high-pressure grouting on the waterproof board crack 3 and the new and old concrete construction surface crack so as to reinforce and prevent rust and prevent the loss of components and foundation soil which take away a gelled structure, and carrying out high-pressure grouting by aligning the crack position after chiseling out surface hollowing concrete with hollowing on the surface of the waterproof board through grouting operation. The high-pressure grouting material is water-soluble polyurethane chemical grouting material, the water-soluble polyurethane chemical grouting material is injected into concrete cracks by utilizing mechanical high-pressure power, the water-soluble polyurethane chemical grouting material reacts with water immediately to form non-epoxy resin grout and polymer cement slurry, the formed water-soluble polyurethane chemical grouting material is guaranteed not to be diluted and washed away by water, the water in the concrete cracks can be rapidly dispersed, emulsified, expanded and solidified when the water-soluble polyurethane chemical grouting material meets the concrete cracks, the solidified elastomer fills the concrete cracks, and water flow is blocked outside a concrete structure body, so that the purposes of water stopping, leakage stopping or rust prevention reinforcement are achieved;
(1-3) compacting, repairing and leveling by using C35P8 impervious concrete;
step two, internal dredging comprises two modes for a main water seepage source and a secondary water seepage source:
firstly, referring to fig. 2, the main water seepage source is found, because the position and the flow direction of the water seepage source are widely and irregularly distributed and are bright and dark, and the water seepage exposed on the surface of the column foundation at the 6 position is always large through recent careful observation and inspection, the 6 position can be judged as the main water seepage source, so that a closed overhead annular main blind ditch which does not influence a garage and can drain the main flowing water of the water seepage source by a terrace pocket is arranged around the water seepage source of a waterproof board on the top surface of the column foundation at the 6 position by utilizing an excavated building surface layer with the thickness of 350 (referring to fig. 2 and fig. 6), a first permeable blind ditch 10 and three corresponding pressure relief openings are arranged at the edge of the annular main blind ditch to guide and drain water to the originally designed sump, and rechecking whether the water quantity of the water collecting pit exceeds the standard or not, if so, additionally arranging a drainage facility, such as adding a water suction pump, and modifying the detailed diagram of the modified schematic diagram of the basement sewage complete set lifting equipment in the area shown in FIG. 3;
in the second mode, for a secondary water seepage source, namely a water seepage zone with small water seepage amount in other areas of a basement, and only a water seepage sheet area with local small water amount at the bottom of a 350-thick building surface layer, because the 350-thick building surface layer on the top surface of a structural waterproof board is poured, 1:2:4 cement machine sand gravel is poured in the past, even 6cm and 4cm concrete surface layers are made, cracks on all waterproof boards cannot be found unless the building surface layer is dug in a large area, the concrete positions of the cracks cannot be accurately found, and high-pressure grouting and leakage repairing cannot be carried out, reasonable and economic measures are that a second water-permeable blind ditch 11 is uniformly arranged in each sheet area, small water amount seeped from the cracks of the waterproof board flows into the second blind ditch 11 through the machine sand gravel or slag in the manufactured 350-thick building surface layer, and is guided to an original water-impermeable open ditch or a nearby place, and the second blind ditch 11 is mainly arranged at a parking position, through the cast-in-place of apron, the surface course covers and can't see, does not arrange as far as possible on the lane, and some rooms also can not arrange.
And step three, peripheral dredging measures are taken, wherein annular blind ditches 12 are arranged on the periphery of the basement, two blind ditch water collecting wells 13 with permeable peripheries are newly manufactured, a concrete drain pipe 14 (about 80 meters) with the diameter of 1 meter and the gradient of not less than 1 percent is buried in the north, and rainwater in the annular blind ditches is drained to a far-away semi-mountainous water outlet 15 through the blind ditch water collecting wells 13.
Referring to fig. 2, the main annular blind ditch comprises a plurality of closed outer hoops 7 arranged along the inner ring and a plurality of corresponding outer hoops 8 arranged on the outer ring, the closed outer hoops 7 are uniformly arranged at equal intervals, the diameters of the corresponding outer hoops 8 arranged on the outer ring are the same as those of the closed outer hoops 7 and are all 10, the outer hoops are uniformly arranged at equal intervals, the intervals are 100mm, the diameters of four hollow angles formed by the closed outer hoops 7 and the corresponding outer hoops 8 arranged on the outer ring are the same, the main annular blind ditch also comprises a plurality of small column pier vertical ribs 9, and the positions of the first closed blind ditches 10 are aligned with a water seepage source.
Referring to FIG. 3, a drainage facility is additionally provided as a water suction pump or a submersible sewage pump 3-10, the basement sewage complete set lifting equipment comprises a box type sewage lifting equipment 3-1 which is connected with a toilet sewage pipe 3-2, the toilet sewage pipe 3-2 is connected with one end of a vent pipe 3-3, the other end of the vent pipe 3-3 is connected with one end of a pressure gauge 3-6 through a hose 3-4 and a flange 3-5, the other end of the pressure gauge 3-6 is connected with the water suction pump or the submersible sewage pump 3-10 through a gate valve 3-7, a check valve 3-8 and a rubber soft joint 3-9 which are connected in series in a line, and the basement sewage complete set lifting equipment is connected with original equipment in series through a flexible sleeve 3-11.
Referring to fig. 5, a detailed view of the basement waterproofing and leaking stoppage construction according to the embodiment of the present invention, wherein the integral waterproofing and leaking stoppage facility mainly comprises a column foundation 16, a water-swelling water stop strip 17, impervious concrete C35P818, a water filtering wall 19 with a plum blossom hole, a steel plate 20 and a filtering layer 21. Need the standard brick to build plum blossom entrance to a cave drainage wall, the hole is one step one at a distance from, but to the annular main blind ditch of some axles, this department is annular confined concrete wall of a ring, the wall arrangement of reinforcement is vertical muscle and according to standard bar planting, the anchor goes into waterproof board 2, the horizontal muscle is 5 annular muscle that the diameter is 10, adopts 0.75mm thick steel sheet setting in drainage wall one side, as the die block board (little pier department opens the hole), the structural slab establishes anti dashing and cuts the hanging muscle, if can't take out, must set up on the steel sheet and take the long rivet of crotch and arrange according to plum blossom interval <400 and can not drop the deformation. The water-swelling water stop strip tightly surrounds the column, the diameter of the double-layer bidirectional reinforcing bar is 10, the length of the double-layer bidirectional reinforcing bar is 120, or the diameter of the double-layer bidirectional reinforcing bar is 10 and the length of the double-layer bidirectional reinforcing bar is 100, the filtering layer is 150 thick, and A-level graded broken stones are filled. When in construction, the contact surfaces of new and old concrete need to be chiseled and cleaned, and the concrete needs to be vibrated to be compact.
Referring to fig. 6-7, which are construction detail views of the first underdrain 10 and the second underdrain 11 according to the embodiment of the invention, for the section a-a of the first underdrain 10 of the annular main underdrain with the size of 600 only applicable to a part of the shaft, the filter layer is 150 wide (filled with a grade a crushed stone), the small brick masonry water filter wall with the plum blossom hole is built, and the wall bottom holes are arranged one by one, wherein the section a-a corresponds to the first underdrain 10, and the section a-a corresponds to the second underdrain 11.
The embodiment carries out basement water prevention and leakage stoppage based on grouting and internal and external dredging combination according to the actual situation on site, the problem of basement water leakage on site is completely cured according to the method, and obvious economic and social benefits are generated
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention; meanwhile, the detailed description and the application scope of the embodiments according to the present invention may be changed by those skilled in the art, and in summary, the present disclosure should not be construed as limiting the present invention.
Claims (3)
1. A basement waterproof leaking stoppage method based on grouting and combination of internal and external dredging is characterized by comprising the following steps:
grouting, comprising the following steps:
(1-1) cleaning water seepage parts of a waterproof plate (2) on the top surface of a basement column foundation, which are excavated and exposed at a main water seepage source;
(1-2) performing high-pressure grouting on the waterproof plate crack (3) and the new and old concrete construction surface crack, so as to reinforce the rust prevention and prevent the loss of components taking away the gelled structure and foundation soil;
(1-3) compacting, repairing and leveling by using C35P8 impervious concrete;
step two, internal dredging comprises two modes for a main water seepage source and a secondary water seepage source:
the method is aimed at a main water seepage source, the main water seepage source is found, firstly, a closed overhead annular main blind ditch which does not affect a garage floor and can also pocket and discharge main flowing water of the water seepage source is arranged around a water seepage source of a waterproof plate (2) on the top surface of a foundation of the main water seepage source by utilizing an excavated building surface layer, a permeable first blind ditch (10) and a plurality of corresponding pressure relief ports are arranged at the edge of the annular main blind ditch, water is guided to an originally designed sump pit, whether the water quantity of the sump pit exceeds the standard or not is rechecked, and if the water quantity exceeds the standard, a drainage facility is additionally arranged to form basement sewage complete set lifting equipment;
secondly, for a secondary water seepage source, namely a basement with small water seepage quantity in other areas, only arranging water seepage sheet areas with local small water quantity at the bottom of a building surface course, and roughly and uniformly arranging permeable second blind ditches (11) in each sheet area to ensure that the small water quantity seeped from a waterproof board crack flows into the second blind ditches (11) through machine sand crushed stones or slag in the finished building surface course and is drained to an original water collecting pit or an original nearby impermeable open ditch, wherein the second blind ditches (11) are arranged at a parking position and are cast in place through a cover plate, the surface course is covered and cannot be seen, and the water seepage sheet areas are not arranged on a traffic lane as much as possible;
thirdly, peripheral dredging measures are taken, wherein annular blind ditches (12) are arranged on the periphery of the basement, two blind ditch water collecting wells (13) with permeable peripheries are newly manufactured, a concrete drain pipe (14) with a gradient not smaller than a certain gradient is buried in a certain direction, and rainwater in the annular blind ditches is discharged to a far-away semi-mountain waist water outlet (15) through the blind ditch water collecting wells (13);
wherein, the main underdrain of annular includes a plurality of outer hoops (8) that correspond of arranging on a plurality of outer hoops (7) and the outer loop of sealing that arrange along the inner ring, and a plurality of outer hoops (7) equidistant evenly arranged of sealing, a plurality of outer hoops (8) diameters of corresponding of arranging on the outer loop are the same with outer hoop (7) of sealing, and equidistant evenly arranged, and a plurality of four hollow angle diameters that correspond outer hoop (8) formation of arranging on a plurality of outer hoops (7) and the outer loop of sealing are the same, still include a plurality of little column mound vertical ribs (9), the position of first underdrain (10) is to aiming at the infiltration source and is arranged.
2. The basement waterproof and leakage blocking method based on grouting and combination of inside and outside dredging as claimed in claim 1, wherein: and (3) performing high-pressure grouting on the crack position to be aligned after the surface hollowing concrete with hollowing on the surface of the waterproof plate is chiseled out by grouting operation in the step (1-2).
3. The basement waterproof and leakage blocking method based on grouting and combination of internal and external dredging as claimed in claim 2, wherein: the high-pressure grouting material is water-soluble polyurethane chemical grouting material, the water-soluble polyurethane chemical grouting material is injected into concrete cracks by utilizing mechanical high-pressure power, the water-soluble polyurethane chemical grouting material can be rapidly dispersed, emulsified, expanded and solidified when meeting the moisture in the concrete cracks, the solidified elastomer fills the concrete cracks, and water flow is blocked outside a concrete structure body, so that the purposes of water stopping, leakage stopping or rust preventing reinforcement are achieved.
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| CN201810407652.5A CN108625404B (en) | 2018-05-02 | 2018-05-02 | Basement waterproof leaking stoppage method based on grouting and internal and external dredging combination |
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| CN201810407652.5A CN108625404B (en) | 2018-05-02 | 2018-05-02 | Basement waterproof leaking stoppage method based on grouting and internal and external dredging combination |
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| CN111827364B (en) * | 2020-07-13 | 2021-10-22 | 深圳市建工集团股份有限公司 | Construction method for basement structure bottom plate leakage subarea point type drainage prevention and combination |
| CN111809668A (en) * | 2020-07-21 | 2020-10-23 | 四川童燊防水工程有限公司 | Construction method for leaking water and plugging and reinforcing periphery of foundation column of underground chamber |
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| CN101298782A (en) * | 2008-06-13 | 2008-11-05 | 朱邃科 | Method and system for basement engineering water proof and water drain |
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| CN202416382U (en) * | 2011-12-30 | 2012-09-05 | 深圳市建筑设计研究总院有限公司 | Waterproof structure of basement |
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| BE1011470A3 (en) * | 1997-09-23 | 1999-10-05 | Smet F & C | Method and apparatus for stabilizing a lock or comparable structure |
| CN101298782A (en) * | 2008-06-13 | 2008-11-05 | 朱邃科 | Method and system for basement engineering water proof and water drain |
| CN102116033A (en) * | 2011-01-07 | 2011-07-06 | 中国建筑第四工程局有限公司 | Method and device for dewatering and draining water collecting well of blind drain of deep foundation pit |
| CN202416382U (en) * | 2011-12-30 | 2012-09-05 | 深圳市建筑设计研究总院有限公司 | Waterproof structure of basement |
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