A kind of active antiseepage basement shear wall and its construction technology
Technical field
The present invention relates to the outer of a kind of active antiseepage basement shear wall and its construction technology, especially shear wall upstream face
Shear wall antiseepage drainage system and its construction technology.
Background technique
After the completion of basement main structure construction, surrounding is required to do water-proofing treatment by the shear wall of upstream face, finishes
The protection processing for carrying out related waterproof layer afterwards, can carry out basement backfilling of earthwork process after acceptance(check).This way is
Usual situation, the service life using function of general waterproof roll are about 5-20 or so, and common buildings basement main structure is set
Counting the service life is about 40-70, and the Important building basement Design of Main Structure service life is even up to 100 years.Once waterproof layer uses
Disabler carrys out waterproof by concrete structure itself entirely.Stayed in work progress the construction joint position set, post-cast strip position and
Meet cold seam position of construction set by construction requirement etc., if waterproof layer loses using function, is easily led to upper bit
Infiltration.If facing precipitate heavy rain, in the basement for losing waterproof layer protection, it is more likely that become a big pool,
Caused economic loss will be difficult to estimate, or even influences the safety of owners and use function.Currently, in underground
In the design of room waterproof layer, it is three to four times waterproof rolls that waterproof layer, which is generally twice waterproof roll or even Important building, this is just
It will cause a large amount of CO2Discharge, does not meet the strategic objective of China's energy-saving and emission-reduction.If meeting Spring In Southern plum rain season, underground
The higher area of water level still will appear localized seepage, metope and ground humidity phenomenon.
It is extremely urgent to can be seen that basement shear wall antiseepage problem from above-mentioned status.By increasing shear wall waterproof layer
Quantity not only result in environmental pollution, and it is also possible to the service life because of waterproof layer expire without meeting the requirements.So development
A kind of both simple and economic basement shear wall water-impervious construction technology seems especially urgent.
Summary of the invention
The technical problem to be solved by the present invention is to be directed to the above-mentioned prior art, to be designed to provide one kind
Active antiseepage basement shear wall and its construction technology.
The present invention to achieve the goals above, adopts the following technical scheme that
A kind of active antiseepage basement shear wall, basement are located in foundation pit, and multiple sumps are arranged in basement surrounding,
Drainpipe both ends are placed in sump, and drainpipe connects integral;
The basement it include basement roof, basement shear wall, basement bottom board;
Backfill and medium coarse sand are filled in foundation pit and in the region on the outside of basement;Backfill and medium coarse sand
The number of plies is multilayer, and every layer of backfill and medium coarse sand are interlaced arrangement architecture, and drainpipe is located in medium coarse sand, filter membrane
Wrap up drainpipe.
Further, hole is provided on the drainpipe.
A kind of construction technology of active antiseepage basement shear wall:
(1), before basement surrounding backfilling of earthwork, position and pressure of first of the element soil to basement foundation ditch bottom are first backfilled
It is real, it is necessary to which that there are the hydrophobic gradient of flowing automatically in intermediate arch camber two sides, and the gradient is not less than 0.6%, i.e., are laid with slope from base center along to both sides
Degree is not less than 0.6%;And in basement surrounding, sump is set, and be disposed about water pump in sump, so as to by ponding from catchmenting
It is extracted out in well;
(2), blotter is filled out, filter membrane is spread;One layer of blotter is filled out on the native surface of element that backfill finishes, compacting keeps it flat
It is whole, it is laid with non-woven geotextile on it as filter membrane, non-woven geotextile will disconnect, and there are overlapped length;
(3), drainpipe is put on filter membrane;The drainpipe of peripheral wall aperture is furnished on filter membrane, drainpipe both ends are placed in
In sump, drainpipe connects leakproofness that is integral, and guaranteeing interface;
(4), filter membrane wraps up drainpipe;The filter membrane being laid on the bottom surface of gutter is wrapped drainpipe from both sides;
(5), foundation pit backfills;After drainpipe is laid with, the lesser medium coarse sand of clay content is backfilled, substrate is backfilled to underground
Room floor level;
(6), for backfill second element soil to the position among basement foundation ditch and compacting, intermediate arch camber two sides have gravity flow hydrophobic
The gradient, the gradient be not less than 0.6%, i.e., from base center along to both sides be laid with the gradient be not less than 0.6%;And it catchments in surrounding setting
Well;
(7), blotter is filled out for the second time, spreads filter membrane, the same step of way (2);
(8), drainpipe, the same step of way (3) are put on filter membrane;
(9), filter membrane wraps up drainpipe, the same step of way (4);
(10), foundation pit backfills, the same step of way (5);
(11), backfill third road element is native and is compacted, it is necessary to which there are the hydrophobic gradient of flowing automatically in intermediate arch camber two sides, and the gradient is not less than
0.6%, i.e., the gradient is laid with not less than 0.6% from base center along to both sides;And sump is set in surrounding;
(12), blotter is filled out for the third time, spreads filter membrane, the same step of way (2);
(13), drainpipe, the same step of way (3) are put on filter membrane;
(14), filter membrane wraps up drainpipe, the same step of way (4);
(15), foundation pit backfills, the same step of way (5).
Beneficial effects of the present invention:
The present invention is surrounded by drainage system in its basement shear wall, and underground water and surface water is allowed initiatively to be discharged, from
And effectively guarded against the influence of a large amount of underground water and surface water to basement shear wall, it ensure that basement shearing is non-leakage, and
And the thickness and pass of the waterproof layer of reduction, it can be played even if waterproof layer reaches service life or the in the case where of being damaged actively anti-
Leakproof is seeped, has achieved the effect that dual guarantee.
Detailed description of the invention
Fig. 1 is drainage system floor plan schematic diagram of the present invention.
Fig. 2 is drainage system cross-section diagram schematic diagram of the present invention.
Fig. 3 is drainage system elevational schematic view of the present invention.
Specific embodiment
This technique is further illustrated with implementation method with reference to the accompanying drawing.
A kind of active antiseepage basement shear wall, basement 3 are located in foundation pit 4, and multiple catchment is arranged in 3 surrounding of basement
Well 1,2 both ends of drainpipe are placed in sump 1, and drainpipe 2 connects integral;
The basement 3 it include basement roof 5, basement shear wall 6, basement bottom board 7;
Filled with backfill 8 and medium coarse sand 10 in foundation pit 4 and in the region in 3 outside of basement;Backfill 8 is in
The number of plies of coarse sand 10 is multilayer, and every layer of backfill 8 and medium coarse sand 10 are interlaced arrangement architecture, and drainpipe 2 is located at
In medium coarse sand 10, filter membrane (9) wraps up drainpipe 2.
Hole 11 is provided on the drainpipe 2.
1), before basement surrounding backfilling of earthwork, position and pressure of first of the element soil to basement foundation ditch bottom are first backfilled
It is real, it is necessary to which that there are the hydrophobic gradient of flowing automatically in intermediate arch camber two sides, and the gradient is not less than 0.6%, i.e., are laid with slope from base center along to both sides
Degree is not less than 0.6%;And in basement surrounding, sump is set, and be disposed about water pump in sump, so as to by ponding from catchmenting
It is extracted out in well;
(2), blotter is filled out, filter membrane is spread;One layer of blotter is filled out on the native surface of element that backfill finishes, compacting keeps it flat
It is whole, it is laid with non-woven geotextile on it as filter membrane, non-woven geotextile will disconnect, and there are overlapped length;
(3), drainpipe is put on filter membrane;The drainpipe of peripheral wall aperture is furnished on filter membrane, drainpipe both ends are placed in
In sump, drainpipe connects leakproofness that is integral, and guaranteeing interface;
(4), filter membrane wraps up drainpipe;The filter membrane being laid on the bottom surface of gutter is wrapped drainpipe from both sides;
(5), foundation pit backfills;After drainpipe is laid with, the lesser medium coarse sand of clay content is backfilled, substrate is backfilled to underground
Room floor level;
(6), for backfill second element soil to the position among basement foundation ditch and compacting, intermediate arch camber two sides have gravity flow hydrophobic
The gradient, the gradient be not less than 0.6%, i.e., from base center along to both sides be laid with the gradient be not less than 0.6%;And it catchments in surrounding setting
Well;
(7), blotter is filled out for the second time, spreads filter membrane, the same step of way (2);
(8), drainpipe, the same step of way (3) are put on filter membrane;
(9), filter membrane wraps up drainpipe, the same step of way (4);
(10), foundation pit backfills, the same step of way (5);
(11), backfill third road element is native and is compacted, it is necessary to which there are the hydrophobic gradient of flowing automatically in intermediate arch camber two sides, and the gradient is not less than
0.6%, i.e., the gradient is laid with not less than 0.6% from base center along to both sides;And sump is set in surrounding;
(12), blotter is filled out for the third time, spreads filter membrane, the same step of way (2);
(13), drainpipe, the same step of way (3) are put on filter membrane;
(14), filter membrane wraps up drainpipe, the same step of way (4);
(15), foundation pit backfills, the same step of way (5).