CN114411792A - Waterproof construction method for bearing platform foundation structure - Google Patents
Waterproof construction method for bearing platform foundation structure Download PDFInfo
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- CN114411792A CN114411792A CN202111584956.7A CN202111584956A CN114411792A CN 114411792 A CN114411792 A CN 114411792A CN 202111584956 A CN202111584956 A CN 202111584956A CN 114411792 A CN114411792 A CN 114411792A
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- 238000010276 construction Methods 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 120
- 239000011449 brick Substances 0.000 claims abstract description 40
- 239000004567 concrete Substances 0.000 claims abstract description 32
- 238000000465 moulding Methods 0.000 claims abstract description 25
- 239000011469 building brick Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims abstract description 3
- 239000010410 layer Substances 0.000 claims description 107
- 239000011241 protective layer Substances 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 24
- 239000011248 coating agent Substances 0.000 claims description 20
- 238000000576 coating method Methods 0.000 claims description 20
- 239000004568 cement Substances 0.000 claims description 17
- 230000007704 transition Effects 0.000 claims description 14
- 239000003973 paint Substances 0.000 claims description 10
- 239000002689 soil Substances 0.000 claims description 10
- 239000010426 asphalt Substances 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 8
- 239000004570 mortar (masonry) Substances 0.000 claims description 6
- 238000004078 waterproofing Methods 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 12
- 238000007599 discharging Methods 0.000 description 3
- 238000009415 formwork Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000002219 extraembryonic membrane Anatomy 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011387 rubberized asphalt concrete Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/22—Lining sumps in trenches or other foundation pits
-
- 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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Hydrology & Water Resources (AREA)
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Abstract
A waterproof construction method of a bearing platform foundation structure is applied to a foundation pit and comprises the following steps: digging a plurality of bearing platform grooves on the bottom surface of the foundation pit, and digging a water collecting well at the bottom of each bearing platform groove; pouring concrete cushion layers to the bottom of each bearing platform groove, and building brick moulding beds around each concrete cushion layer; filling a side cushion layer between the plurality of brick moulding beds; pouring a foundation cushion layer on the upper surface of each concrete cushion layer, so that one side, far away from the water collecting well, of the upper surface of each foundation cushion layer is higher than one side, close to the water collecting well, of the upper surface of each foundation cushion layer; paving first waterproof layers on the upper surfaces of the plurality of foundation cushion layers, the surfaces of the plurality of water collecting wells, the surfaces of the plurality of brick bed films and the upper surfaces of the side cushion layers; the drainage device is arranged in any water collecting well, and a siphon system is erected among the bearing grooves, so that accumulated water in the bearing grooves is converged into the water collecting well provided with the drainage device through the siphon system, and the accumulated water is drained out of the foundation pit through the drainage device. By the method, the problems of low drainage speed and poor waterproof effect after water is accumulated on the bearing platform can be solved.
Description
Technical Field
The invention belongs to the field of building construction, and particularly relates to a waterproof construction method for a bearing platform foundation structure.
Background
The underground water resistance of modern buildings is very important, and needs to be done in design and construction, otherwise, the later repair cost is huge, the effect is limited, and the repeated repair of the dragsaw war can be easily caused, and cannot be thoroughly solved. The existing construction method adopting the waterproof coiled material only forms a waterproof protective layer by paving and lapping the waterproof coiled material, cannot further improve the waterproof effect and drain water for the bearing platform and accelerate the construction speed when water is accumulated in the bearing platform, and the existing waterproof coiled material paving and pasting mode has poor waterproof effect. In practice, a lot of deep foundation pits and large bottom plate projects need time for finishing steel bar binding in the waterproof construction of a bearing platform, the bearing platform can accumulate water when raining in the period, if the waterproof coiled material of the large-rain bearing platform is soaked, the waterproof quality is seriously affected, and the drainage speed after the bearing platform accumulates water also affects the bottom plate pouring construction speed and the forming quality.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a waterproof construction method for a foundation structure of a bearing platform, which solves the problems of low drainage speed and poor waterproof effect after water is accumulated in the bearing platform.
The waterproof construction method of the bearing platform foundation structure provided by the embodiment of the invention is applied to a foundation pit, and comprises the following steps of:
digging a plurality of bearing platform grooves on the bottom surface of the foundation pit, and digging a water collecting well at the bottom of each bearing platform groove;
pouring concrete cushion layers to the bottom of each bearing platform groove, and building brick moulding beds around each concrete cushion layer;
filling a side cushion layer between a plurality of the brick moulding beds;
pouring a foundation cushion layer on the upper surface of each concrete cushion layer, so that one side, far away from the water collecting well, of the upper surface of each foundation cushion layer is higher than one side, close to the water collecting well, of the upper surface of each foundation cushion layer;
paving a first waterproof layer on the upper surfaces of the base cushion layers, the water collecting wells, the brick bed films and the side cushion layers;
the drainage device is arranged in any one of the water collecting wells, and a siphon system is erected among the bearing grooves, so that accumulated water in the bearing grooves can be gathered into the water collecting well provided with the drainage device through the siphon system, and the accumulated water is drained out of the foundation pit through the drainage device.
The waterproof construction method of the foundation structure of the bearing platform provided by the embodiment of the invention at least has the following technical effects: dig a plurality of bearing platform grooves in the bottom surface of foundation ditch, dig the sump pit in the bottom in every bearing platform groove, make its upper surface have the slope when pouring every basic bed course, it carries out water proof protection to bearing platform infrastructure's surface to set up first waterproof layer, discharge into adjacent bearing platform groove through setting up the ponding of siphon system in with the sump pit, ponding can flow into in the sump pit along the slope that basic bed course formed, use the water of siphon system in with a plurality of bearing platform inslots to be provided with drainage device's sump pit between a plurality of bearing platform grooves, the rethread drainage device is with water discharge foundation ditch, the drainage speed after having solved bearing platform ponding is slow, the problem that water-proof effects is not good.
According to some embodiments of the invention, the step of laying a first waterproof layer on the upper surfaces of the plurality of base mats, the plurality of water collecting wells, the plurality of brick mould films and the upper surfaces of the side mats comprises the steps of:
coating cement-based permeable crystalline waterproof paint on the upper surfaces of the foundation cushion layers, the water collecting wells and the brick moulding beds, and coating cement-based inorganic waterproof paint on the upper surfaces of the side cushion layers to form a first transition layer;
paving a first waterproof roll on the upper surface of the first transition layer;
and paving mortar on the upper surface of the first waterproof coiled material to form a first protective layer.
According to some embodiments of the invention, the first waterproof roll lap seam is 80mm wide and the distance between two adjacent short side lap seams is not less than 500 mm.
According to some embodiments of the invention, said filling a side-padding layer between a plurality of said brick moulding beds comprises the steps of:
adding an inclined strut back top in each bearing platform groove to support the brick moulding bed;
filling rammed soil between the brick moulding beds to form rammed soil layers;
pouring concrete on the upper surface of the rammed soil layer and the upper surfaces of the brick bed films to form a concrete layer;
and removing the inclined strut jack.
According to some embodiments of the invention, the cap foundation structure further comprises a pile head, and the waterproof construction method of the cap foundation structure further comprises the steps of:
coating the cement-based capillary crystalline waterproof coating on the pile top and the exposed pile body of the pile head to form a second transition layer;
coating rubber asphalt on the junction of the pile head and the foundation mat layer to form a second protective layer;
paving a second waterproof roll on the upper surface of the second protective layer;
and coating the rubber asphalt on the upper surface of the second waterproof coiled material to form a third protective layer.
According to some embodiments of the invention, the siphon system comprises a plurality of siphon pipes, each siphon pipe is arranged between two adjacent platform troughs, and one end of each siphon pipe extends into the sump of one of the platform troughs, and the other end of each siphon pipe extends into the other platform trough.
According to some embodiments of the invention, each of the siphon lines comprises:
one end of the first vacuum valve extends into the water collecting well through a pipeline;
one end of the second vacuum valve is connected with the other end of the first vacuum valve through a vacuum pumping valve; the vacuum pumping valve is used for connecting a vacuum machine;
one end of the first valve is connected with the other end of the second vacuum valve;
one end of the second valve is connected with the other end of the first valve, and the other end of the second valve extends into the bearing platform groove through a pipeline; a water inlet is arranged in the water containing pipe between the second valve and the first valve.
According to some embodiments of the invention, the sump well is dug at a corner of the bottom of the basin.
According to some embodiments of the invention, the upper surface of each of the base mats has a slope of 0.3%.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a flow chart of a waterproof construction method of a foundation structure of a bearing platform according to an embodiment of the present invention;
FIG. 2 is a flow chart of a waterproof construction method of a foundation structure of a bearing platform according to another embodiment of the present invention;
FIG. 3 is a flow chart of a waterproof construction method of a foundation structure of a bearing platform according to another embodiment of the present invention;
FIG. 4 is a flow chart of a waterproof construction method of a foundation structure of a bearing platform according to another embodiment of the present invention;
FIG. 5 is a block diagram of the male and female corners of a platform infrastructure of an embodiment of the present invention;
FIG. 6 is a partial block diagram of a platform infrastructure of an embodiment of the present invention;
FIG. 7 is a schematic layout of a drain according to an embodiment of the present invention;
FIG. 8 is a schematic layout of a siphon system and drain of an embodiment of the present invention;
FIG. 9 is a schematic view showing the direction of the slope of the upper surface of the foundation mat according to the embodiment of the present invention;
FIG. 10 is a schematic view of a first roll of waterproofing material and a second roll of waterproofing material of an embodiment of the present invention;
fig. 11 is a structural view of a pile head and a second waterproof layer of an embodiment of the invention;
fig. 12 is a structural view of a first waterproof layer according to an embodiment of the present invention.
Reference numerals:
a foundation pit 100;
a bearing platform groove 200, a water collecting well 210, a concrete cushion layer 220, a brick moulding bed 230 and a foundation cushion layer 240;
a drain 400;
a first transition layer 510, a first waterproofing membrane 520, a first protective layer 530;
a pile head 700;
a second transition layer 810, a second protective layer 820, a second waterproof roll 830, a third protective layer 840;
the circular arc structure 900, the additional reinforcing layer 910 and the third waterproof coiled material 920.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the directional descriptions, such as the directions of upper, lower, front, rear, left, right, etc., are referred to only for convenience of describing the present invention and for simplicity of description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
A waterproof construction method of a cap foundation structure according to an embodiment of the present invention will be described below with reference to fig. 1 to 12.
The waterproof construction method of the bearing platform foundation structure provided by the embodiment of the invention is applied to the foundation pit 100, and comprises the following steps:
digging a plurality of bearing platform grooves 200 on the bottom surface of the foundation pit 100, and digging a water collecting well 210 at the bottom of each bearing platform groove 200;
pouring concrete cushion layers 220 to the bottom of each bearing platform groove 200, and building brick moulding beds 230 around each concrete cushion layer 220;
filling a side pad layer 300 between the plurality of brick beds 230;
pouring a foundation mat layer 240 to the upper surface of each concrete mat layer 220 such that the side of the upper surface of the foundation mat layer 240 away from the water collection well 210 is higher than the side close to the water collection well 210;
laying a first waterproof layer on the upper surfaces of the plurality of foundation mats 240, the plurality of water collecting wells 210, the plurality of brick mould films 230 and the upper surface of the side mat 300;
the drainage device 400 is disposed in any one of the sump wells 210, and a siphon system is built between the plurality of platform grooves 200, so that the accumulated water in the plurality of platform grooves 200 is collected into the sump well 210 in which the drainage device 400 is disposed through the siphon system and is drained out of the foundation pit 100 through the drainage device 400.
A plurality of bearing platform grooves 200 are dug on the bottom surface of the foundation pit 100, a water collecting well 210 is dug at the bottom of each bearing platform groove 200, and accumulated water in the bearing platform grooves 200 can be collected in the water collecting well 210 in rainy days so as to be conveniently discharged. Concrete cushion layers 220 are poured at the bottom of each bearing platform groove 200, brick formworks 230 are built around each concrete cushion layer 220, and after the brick formworks 230 are built, side cushion layers 300 can be filled among the brick formworks 230. Then, pouring the foundation pad layer 240 on the upper surface of each concrete pad layer 220, wherein the upper surface of the foundation pad layer 240 has a certain slope (one side far away from the water collecting well 210 is higher than one side close to the water collecting well 210), rainwater falls into the bearing platform groove 200, water can flow into the water collecting well 210 along the slope formed by the foundation pad layer 240, accumulated water cannot stay on the foundation pad layer 240, and the foundation pad layer 240 cannot be continuously soaked. The surface of the foundation structure of the cap may be protected from water by laying a first waterproof layer on the upper surfaces of the foundation mats 240, the water collection wells 210, the brick-bed sheets 230, and the side mats 300. The drainage device 400 is arranged in any one water collecting well 210, the siphon system is erected among the bearing platform grooves 200, after water is accumulated in the bearing platform grooves 200 in rainy days, the accumulated water in the bearing platform grooves 200 can be collected into the water collecting well 210 provided with the drainage device 400 through the erected siphon system, and the accumulated water in the water collecting well 210 is uniformly drained out of the foundation pit 100 through the drainage device 400, so that the drainage efficiency is high, and the cost is low.
According to the waterproof construction method of the foundation structure of the bearing platform, a plurality of bearing platform grooves 200 are dug at the bottom of a foundation pit 100, a water collecting well 210 is dug at the bottom of each bearing platform groove 200, the upper surface of each foundation cushion 240 is made to have a gradient when each foundation cushion 240 is poured, a first waterproof layer is laid after the foundation cushion 240 is poured so as to protect the surface of the foundation structure of the bearing platform in a waterproof mode, accumulated water in the water collecting wells 210 is discharged into the adjacent bearing platform grooves 200 through a siphon system, the accumulated water can flow into the water collecting wells 210 along the slope formed by the foundation cushion 240, the water in the bearing platform grooves 200 is discharged into the water collecting wells 210 provided with the water discharging devices 400 through the water discharging devices 400, and the problems that the water discharging speed is low and the waterproof effect is poor after the water accumulation of the bearing platform are solved.
In some embodiments of the present invention, referring to fig. 2 and 12, the step of laying a first waterproof layer on the upper surfaces of the plurality of foundation mats 240, the plurality of water collection wells 210, the plurality of brick mould films 230, and the upper surfaces of the side mats 300 comprises the steps of:
applying a cement-based capillary crystalline waterproof coating on the upper surfaces of the plurality of foundation mats 240, the plurality of water collecting wells 210, and the plurality of brick beds 230, and applying a cement-based inorganic waterproof coating on the upper surfaces of the side mats 300 to form a first transition layer 510;
paving a first waterproof roll 520 on the upper surface of the first transition layer 510;
mortar is applied to the upper surface of first waterproof sheet 520 to form first protective layer 530.
Cement-based permeable crystalline waterproof paint is coated on the upper surfaces of the base cushion layers 240, the water collecting wells 210 and the brick fetal membranes 230, and cement-based inorganic waterproof paint is coated on the upper surfaces of the side cushion layers 300 to form a first transition layer 510 to assist in paving the first waterproof roll 520, so that the defect that the first waterproof layer is damaged due to the fact that the first waterproof roll 520 is not firmly adhered to the upper surfaces of the base cushion layers 240, the water collecting wells 210, the brick fetal membranes 230 and the upper surfaces of the side cushion layers 300 can be reduced. In rainy days, when water is accumulated in the bearing platform groove 200, the upper surface of the foundation cushion layer 240, the surface of the water collecting well 210 and the surface of the brick moulding bed 230 are easily soaked by the accumulated water, and the applied cement-based permeable crystalline waterproof coating can generate chemical reaction to generate crystals to fill gaps of the foundation concrete in a wet environment, so that the purpose of preventing leakage is achieved, and the accumulated water on the surface can be applied after being cleaned before the cement-based permeable crystalline waterproof coating is applied. On the upper surface of the side pad layer 300 which is not easy to have a large amount of water accumulation, cement-based inorganic waterproof paint can be directly coated to serve as the first transition layer 510 to assist in paving the first waterproof roll 520. As known to those skilled in the art, the cement-based inorganic waterproof coating is a common waterproof coil treating agent and will not be described herein. A first waterproof roll 520 is laid on the upper surface of the first transition layer 510, and the first waterproof roll 520 is a common waterproof roll material and will not be described herein. Mortar is applied to the upper surface of first waterproofing membrane 520 to form first protective layer 530, and first protective layer 530 can reduce the probability of damage to first waterproofing membrane 520. It is known to those skilled in the art that mortar can be disposed on the waterproof roll as a waterproof protective layer, and the details are not described herein. It should be noted that the first protective layer 530 may also be made of other materials that can be used as a protective layer of the waterproof roll, and should not be construed as a limitation to the present invention.
In some embodiments of the invention, referring to fig. 10, the first waterproof roll 520 has a lap seam width of 80mm, and the distance between two adjacent short side lap seams is not less than 500 mm. When the first waterproof coiled material 520 is paved, the first waterproof coiled material 520 is lapped on the edge of the paved first waterproof coiled material 520, the width of a lap joint is 80mm, and the distance between two adjacent short side lap joints is not less than 500 mm. The waterproof effect of the first waterproof roll 520 can be enhanced by adopting the overlapping mode, and the phenomenon that the waterproof effect is damaged due to the fact that accumulated water permeates from an excessively small overlapping seam is reduced. The adjacent two short side lap joints have a certain distance, so that the construction difficulty can be reduced, the construction time is saved, and the repair construction of the first waterproof roll 520 caused by the permeation of the lap joints is reduced. It should be noted that the specific values of the width of the lap seam of the first waterproof roll 520 and the distance between two adjacent short side lap seams are not to be considered as limiting the invention.
In some embodiments of the present invention, referring to fig. 3 and 6, filling a side underlayment 300 between a plurality of brick moulding films 230 comprises the steps of:
adding a diagonal brace backset in each platform groove 200 to support the brick moulding 230;
filling rammed soil between the plurality of brick moulding beds 230 to form a rammed soil layer 310;
pouring concrete on the upper surface of the rammed soil layer 310 and the upper surfaces of the plurality of brick beds 230 to form a concrete layer 320;
and (5) dismantling the back support of the inclined strut.
After the inclined strut is added to each bearing platform groove 200, rammed earth is filled between the brick moulding beds 230, the inclined strut can support the brick moulding beds 230, so that the brick moulding beds 230 are prevented from collapsing when the rammed earth is backfilled, concrete is poured on the upper surfaces of the rammed earth layer 310 and the upper surfaces of the brick moulding beds 230 after the rammed earth layer 310 is filled, a concrete layer 320 is formed, and after the concrete layer 320 is dried, the inclined strut can be detached. In addition, it is known to those skilled in the art that backfilling of the rammed earth layer 310 and the concreting layer 320 is a well-known technology and will not be described herein.
In some embodiments of the present invention, referring to fig. 4 and 11, the cap foundation structure further includes a pile head 700, and the waterproof construction method of the cap foundation structure further includes the steps of:
coating cement-based capillary crystalline waterproof paint on the pile top and the exposed pile body of the pile head 700 to form a second transition layer 810;
coating rubber asphalt on the junction of the pile head 700 and the foundation mat 240 to form a second protective layer 820;
paving a second waterproof roll 830 on the upper surface of the second protective layer 820;
rubberized asphalt is applied to the upper surface of second waterproof roll 830 to form third protective layer 840.
The method comprises the steps of smearing cement-based permeable crystalline waterproof paint on the pile top and the exposed pile body of the pile head 700 to enable the cement-based permeable crystalline waterproof paint to be in chemical reaction with the pile top and the exposed pile body of the pile head 700 to fill gaps, smearing rubber asphalt on the junction of the pile head 700 and the foundation mat 240 to form a second protective layer 820, paving a second waterproof coiled material 830 on the upper surface of the second protective layer 820 at the moment, and smearing the rubber asphalt on the upper surface of the second waterproof coiled material 830 to form a third protective layer 840. The top of the pile head 700 is higher than the foundation mat layer 240, and the junction of the pile head 700 and the foundation mat layer 240 is not on the same plane, so that the second waterproof roll 830 needs to be arranged after the second protective layer 820 is arranged, and then a third protective layer 840 is arranged on the second waterproof roll 830 to better prevent water from permeating. The rubber asphalt is a novel special-grade rubber waterproof coating, has good waterproof and moistureproof effects, and can well realize the waterproof effect of the pile head 700 when applied to the junction of the pile body of the pile head 700 and the foundation mat 240. The top of the pile head 700 is higher than the foundation mat 240, and the problem of water immersion can be faced as well, and the second waterproof layer arranged on the pile head 700 can effectively prevent water at the pile head 700 and the junction of the pile head 700 and the foundation mat 240. Here, it should be noted that the second protective layer 820 and the third protective layer 840 may be made of other materials that can be used as protective layers of waterproof rolls, and should not be construed as limiting the present invention.
In some embodiments of the present invention, referring to fig. 6-9, the siphon system comprises a plurality of siphon pipes 600, each siphon pipe 600 is disposed between two adjacent platform troughs 200, and one end of the siphon pipe 600 extends into the sump 210 of one platform trough 200 and the other end extends into the other platform trough 200. After the plurality of siphon pipe systems 600 and the drainage device 400 are erected, the accumulated water in the plurality of bearing grooves 200 is gathered into the water collecting well 210 provided with the drainage device 400 through the plurality of siphon pipe systems 600, and then the drainage device 400 is used for draining the accumulated water out of the drainage ditch beside the foundation pit 100, so that the energy and the materials are saved, the cost is reduced, and the drainage efficiency is improved. Here, the drainage device 400 may be a water pump or other devices capable of draining water, and is not to be construed as limiting the present invention.
In some embodiments of the present invention, referring to fig. 6-9, each siphon system 600 comprises: a first vacuum valve 610, a first valve 630, and a second valve 640. A first vacuum valve 610 having one end extended into the sump 210 through a pipe; a second vacuum valve 620 having one end connected to the other end of the first vacuum valve 610 through a vacuum pumping valve 621; the vacuum pumping valve 621 is used for connecting a vacuum machine; a first valve 630 having one end connected to the other end of the second vacuum valve 620; a second valve 640 having one end connected to the other end of the first valve 630 and the other end extended into the platform groove 200 through a pipe; a water inlet 641 is arranged in the water containing pipe between the second valve 640 and the first valve 630.
The pipeline between the first vacuum valve 610 and the second vacuum valve 620 is a vacuum section pipe, the pipeline between the first valve 630 and the second valve 640 is a water containing section pipe, and the vacuum section pipe and the water containing section pipe are connected through threads in the pipes. When the siphon system 600 is used for collecting water, firstly, the vacuum machine is connected through the vacuum pumping valve 621, then the vacuum machine is opened to pump the vacuum section pipe to a negative pressure state, water is added into the water inlet 641 of the water containing section pipe, the water inlet 641 is sealed by the cover after the water is filled, then the first vacuum valve 610 is opened, the vacuum section pipe is fully sucked with water through the negative pressure, then the second vacuum valve 620, the first valve 630 and the second valve 640 are sequentially opened, the interval time between the first vacuum valve and the second vacuum valve cannot be too long, so that the negative pressure is prevented from disappearing, the water flows back, and the accumulated water in the water collecting well 210 on the side of the vacuum section pipe can actively flow into the bearing platform groove 200 on the side of the water containing section pipe. The siphon system 600 is simple to operate and low in material cost for collecting water.
In some embodiments of the present invention, referring to fig. 6-9, sump wells 210 are dug at the corners of the bottom of the basin 200. After the plurality of platform bearing grooves 200 are dug, the water collecting well 210 is dug at the corner of the bottom of each platform bearing groove 200, so that the drainage operation of the platform bearing foundation structure can be conveniently carried out by matching with the siphon system and the drainage device 400. It should be noted that the sump 210 may be dug at other positions at the bottom of the platform tank 200, which should not be construed as limiting the present invention.
In some embodiments of the present invention, referring to fig. 6 to 9, the slope of the upper surface of each base mat 240 is 0.3%. It should be noted that the slope of the upper surface of each foundation mat 240 is only required to enable the accumulated water in the basin 200 to flow into the water collecting well 210 along the slope formed by the foundation mat 240, and is not to be construed as a limitation of the present invention.
In some embodiments of the present invention, referring to fig. 5 to 12, a plurality of platform bearing grooves 200 are dug on the bottom surface of a foundation pit 100, a water collecting well 210 with a size of 300 × 300 × 300mm is dug at the bottom of each platform bearing groove 200, then 100mm of concrete is poured as a concrete cushion 220, leveling is performed, the concrete cushion 220 is hardened, a brick molding bed 230 with a height of more than 1800mm is built after setting out, plastering and leveling are performed, and the brick molding bed 230 adopts M7.5 mortar and Mu10 bricks. P6 impervious concrete of 200-300 mm is poured on the upper surface of the concrete cushion layer 220 to form a foundation cushion layer 240, and the gradient of the upper surface of the foundation cushion layer 240 is 0.3% when the foundation cushion layer 240 is poured, so that accumulated water can flow into the water collecting well 210 along the slope formed by the foundation cushion layer 240. And cleaning the surface of the base structure of the bearing platform, so that the first waterproof layer and the second waterproof layer are constructed after no accumulated water is on the surface. In addition, the positions of the internal corner and the external corner of the base structure of the bearing platform are smeared into an arc structure 900, an additional reinforcing layer 910 is arranged on the upper surface of the arc structure 900, and a third waterproof coiled material 920 is laid on the additional reinforcing layer 910 to prevent the positions of the internal corner and the external corner from being permeated by accumulated water. It should be noted that the dimensions of the above-mentioned structures are not to be considered as limiting the present invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited to the embodiments, and those skilled in the art will understand that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A waterproof construction method of a bearing platform foundation structure is applied to a foundation pit and is characterized by comprising the following steps:
digging a plurality of bearing platform grooves on the bottom surface of the foundation pit, and digging a water collecting well at the bottom of each bearing platform groove;
pouring concrete cushion layers to the bottom of each bearing platform groove, and building brick moulding beds around each concrete cushion layer;
filling a side cushion layer between a plurality of the brick moulding beds;
pouring a foundation cushion layer on the upper surface of each concrete cushion layer, so that one side, far away from the water collecting well, of the upper surface of each foundation cushion layer is higher than one side, close to the water collecting well, of the upper surface of each foundation cushion layer;
paving a first waterproof layer on the upper surfaces of the base cushion layers, the water collecting wells, the brick bed films and the side cushion layers;
the drainage device is arranged in any one of the water collecting wells, and a siphon system is erected among the bearing grooves, so that accumulated water in the bearing grooves can be gathered into the water collecting well provided with the drainage device through the siphon system, and the accumulated water is drained out of the foundation pit through the drainage device.
2. The waterproof construction method of a foundation structure of a cap according to claim 1, wherein said applying a first waterproof layer on the upper surfaces of a plurality of foundation mats, a plurality of water collecting wells, a plurality of brick beds, and the upper surfaces of the side mats comprises the steps of:
coating cement-based permeable crystalline waterproof paint on the upper surfaces of the foundation cushion layers, the water collecting wells and the brick moulding beds, and coating cement-based inorganic waterproof paint on the upper surfaces of the side cushion layers to form a first transition layer;
paving a first waterproof roll on the upper surface of the first transition layer;
and paving mortar on the upper surface of the first waterproof coiled material to form a first protective layer.
3. The waterproof construction method of a foundation structure of a bearing platform as claimed in claim 2, wherein the lap seam of the first waterproof roll is 80mm wide, and the distance between two adjacent short side lap seams is not less than 500 mm.
4. The waterproof construction method of a foundation structure of a bearing platform as claimed in claim 1, wherein the step of filling a side pad layer between a plurality of said brick membranes comprises the steps of:
adding an inclined strut back top in each bearing platform groove to support the brick moulding bed;
filling rammed soil between the brick moulding beds to form rammed soil layers;
pouring concrete on the upper surface of the rammed soil layer and the upper surfaces of the brick bed films to form a concrete layer;
and removing the inclined strut jack.
5. The waterproof construction method of a foundation structure of a bearing platform of claim 1, wherein the foundation structure of the bearing platform further comprises a pile head, and the waterproof construction method of a foundation structure of a bearing platform further comprises the steps of:
coating the cement-based capillary crystalline waterproof coating on the pile top and the exposed pile body of the pile head to form a second transition layer;
coating rubber asphalt on the junction of the pile head and the foundation mat layer to form a second protective layer;
paving a second waterproof roll on the upper surface of the second protective layer;
and coating the rubber asphalt on the upper surface of the second waterproof coiled material to form a third protective layer.
6. The method of waterproofing a platform foundation structure according to claim 1, wherein said siphon system comprises a plurality of siphon pipes, each of said siphon pipes being disposed between two adjacent platform troughs, and one end of said siphon pipe extending into said sump of one of said platform troughs and the other end of said siphon pipe extending into another of said platform troughs.
7. The waterproof construction method of a foundation structure of a cap as claimed in claim 6, wherein each of the siphon pipes comprises:
one end of the first vacuum valve extends into the water collecting well through a pipeline;
one end of the second vacuum valve is connected with the other end of the first vacuum valve through a vacuum pumping valve; the vacuum pumping valve is used for connecting a vacuum machine;
one end of the first valve is connected with the other end of the second vacuum valve;
one end of the second valve is connected with the other end of the first valve, and the other end of the second valve extends into the bearing platform groove through a pipeline; a water inlet is arranged in the water containing pipe between the second valve and the first valve.
8. The waterproof construction method of a foundation structure of a cap as claimed in claim 1, wherein the sump is dug at a corner of a bottom of the cap groove.
9. The waterproof construction method of a cap foundation structure according to claim 1, wherein the slope of the upper surface of each foundation mat layer is 0.3%.
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Application publication date: 20220429 |