CN113833500B - Restoration method for waterproof and impermeable layer of mountain cave depot - Google Patents
Restoration method for waterproof and impermeable layer of mountain cave depot Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
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Abstract
The invention provides a restoration method of a waterproof and impermeable layer of a mountain cave depot, which comprises the following steps: repairing a structural layer, repairing a surface layer and repairing a decoration layer, wherein when a vault of a cave depot needs to be repaired, the repairing of the structural layer comprises paving at least three terylene waterproof coiled material layers on the outer wall of a leakage part, and when a cave depot wall needs to be repaired, the repairing of the structural layer comprises the steps of selecting corresponding slurry at the leakage part according to leakage conditions and injecting the slurry from the inner wall; the repair of the surface layer comprises the steps of firstly scraping a cement-based permeable crystalline waterproof layer on the inner wall of a leakage part, and then scraping a plugging agent for leveling; the repair of the decoration layer comprises the steps of spraying primer and then spraying waterproof special mortar on the surface layer. The invention relates to a comprehensive repairing method for repairing according to leakage conditions caused by different reasons at different positions.
Description
Technical Field
The invention relates to the technical field of mountain cave depot construction, in particular to a method for repairing a waterproof impermeable layer of a mountain cave depot.
Background
The mountain cave depot has the characteristics of warm in winter and cool in summer, hidden by the backer and the like, and is built in various places throughout the country (particularly mountain areas such as Hunan, sichuan, guizhou, north Hebei and the like) in order to meet the combat readiness requirements under special environments at that time in the middle and later stages of the 20 th century and is used for storing various materials. The mountain cave depot mainly comprises a rock cave depot, a loess cave depot, a covered soil cave depot and the like, wherein the rock cave depot is divided into an adherence type and a separation type. In the long-term use process of the cave depot, the cave depot loses the original function due to the fact that the cave depot is lost in the long-term use process and is subject to the change of erosion in the nature, erosion, weathering and debris flow of various corrosive elements, aging, mildew and rot of the original waterproof and impermeable layer, puncture of plant root systems and the like, and different types of water seepage and water leakage phenomena (such as punctiform, planar, linear and deformation joints) are caused, so that the original cave depot loses the useful function, and even potential safety hazards on the cave depot structure of mountain are directly caused.
The waterproof and seepage-proof materials can be classified into waterproof concrete, coiled material coating, plugging grouting. In general, rigid waterproof is adopted in the self-waterproof of the structure, waterproof concrete is adopted as the material, but the method cannot be adopted in the waterproof impermeable layer of the built mountain cave depot. The waterproof and impermeable layers of the mountain cave depot are mostly coiled material coatings or plugging grouting materials. At present, waterproof coiled material repair or chemical grouting repair is mostly adopted in the damage repair of the waterproof and impermeable layers of the mountain cave depot in China, the waterproof and impermeable effects are not ideal, the service period is short, secondary maintenance is often needed, the engineering cost is increased, and the cave depot cannot have normal use functions.
Disclosure of Invention
In view of the above problems, the present invention aims to provide a method for repairing a waterproof and impermeable layer of a mountain cave depot, which is a comprehensive repairing method for repairing leakage caused by different reasons at different positions.
The invention provides a restoration method of a waterproof and impermeable layer of a mountain cave depot, which comprises the following steps: repairing a structural layer, repairing a surface layer and repairing a decoration layer, wherein when a vault of a cave depot needs to be repaired, the repairing of the structural layer comprises paving at least three terylene waterproof coiled material layers on the outer wall of a leakage part, and when a wall of the cave depot needs to be repaired, the repairing of the structural layer comprises the steps of selecting corresponding slurry at the leakage part according to the leakage condition and injecting the slurry from the inner wall; the repair of the surface layer comprises the steps of firstly scraping a cement-based permeable crystalline waterproof layer on the inner wall of a leakage part, and then scraping a plugging agent for leveling; the repair of the decoration layer comprises the steps of spraying primer and then spraying waterproof special mortar on the surface layer.
The laying of at least three terylene waterproof coiled material layers comprises the following steps: and removing the base layer at the leakage part on the upper part of the outer wall of the vault, leveling, and paving each layer of terylene waterproof coiled material layer, wherein the terylene waterproof coiled material layer comprises the steps of uniformly brushing cement slurry binder and paving the terylene waterproof coiled material.
The cement slurry binder comprises rubber powder, 425 cement and water, wherein the ratio of the rubber powder to the 425 cement to the water is (8-9) to 100 to (20-25).
When the vault at the corner of the cave depot needs to be repaired, paving one more polyester waterproof coiled material layer compared with the vault at the straight passage; the terylene waterproof coiled material layer is paved into an arc shape at the inner and outer corners of the vault.
The selecting the corresponding slurry injection according to the leakage condition comprises the following steps: the surface leakage part is injected by adopting water curing grouting material; injecting the acrylate grouting material into the point-like leakage position; injecting the linear leakage part by using epoxy resin grouting material; the leakage part of the deformation joint is injected by hydrophilic two-component polyurethane grouting material.
V-shaped grooves with the depth of 30mm-40mm are chiseled at intervals of a set distance at the linear leakage position and the deformation joint leakage position, grouting pipes are buried in the V-shaped grooves, and leakage blocking agents are adopted to compact and seal the grouting pipes and the V-shaped grooves; injecting under the condition that the maximum continuous grouting pressure is not more than 0.6MPa, wherein the slurry leakage is detected to be blocked by a plugging agent in the injection process; and (5) injecting until no slurry is fed, keeping the slurry shielding time at least 5 minutes, and ending the injection.
Holes with the depth of 30mm-40mm are drilled at the planar leakage positions and the point leakage positions, grouting pipes are buried in the holes, and leakage blocking agents are adopted for compaction and sealing between the grouting pipes and the holes; injecting under the condition that the maximum continuous grouting pressure is not more than 0.6MPa, wherein the slurry leakage is detected to be blocked by a plugging agent in the injection process; and (5) injecting until no slurry is fed, keeping the slurry shielding time at least 5 minutes, and ending the injection.
The doctor blade leaking stoppage ling leveling comprises: and scraping and coating a first layer of plugging agent, wherein the thickness of the first layer of plugging agent is 0.7-0.8 mm, spraying the surface of the first layer of plugging agent to be wet after the first layer of plugging agent is hardened, scraping and coating a second layer of plugging agent, and preserving moisture and curing after the second layer of plugging agent is hardened.
And (3) adding priming paint or putty powder on the priming paint at the upper part of the leakage part.
The cement-based permeable crystalline waterproof layer comprises a cement-based permeable crystalline material and water, wherein the ratio of the cement-based permeable crystalline material to the water is (3-4): 1.
as can be seen from the above description, the method for repairing the waterproof impermeable layer of the mountain cave depot provided by the invention is used for repairing leakage conditions caused by different reasons at different positions according to the characteristics of the separated wall type mountain cave depot. The leakage of the vault is repaired by adopting a method of paving a terylene waterproof coiled material, scraping a cement-based permeable and crystalline waterproof layer, scraping a leakage blocking agent, spraying a primer and spraying waterproof characteristic mortar, and by adopting a method of injecting different grouting materials, scraping a cement-based permeable and crystalline waterproof layer, scraping a leakage blocking agent, spraying a primer and spraying waterproof characteristic mortar according to different leakage conditions of a wall. Compared with the traditional repairing process (SBS waterproof coiled material, polyurethane grouting, epoxy resin grouting and impermeable layer coating), the method can better solve the leakage caused by concrete honeycomb pitting surface, holes, cracks and deformation, and achieves better waterproof and impermeable effects through comprehensive repairing of more layers on the premise of not increasing the manufacturing cost.
To the accomplishment of the foregoing and related ends, one or more aspects of the invention comprise the features hereinafter fully described and particularly pointed out in the claims. The following description and the annexed drawings set forth in detail certain illustrative aspects of the invention. These aspects are indicative, however, of but a few of the various ways in which the principles of the invention may be employed. Furthermore, the invention is intended to include all such aspects and their equivalents.
Drawings
Other objects and results of the present invention will become more apparent and readily appreciated by reference to the following description and claims in conjunction with the accompanying drawings and a more complete understanding of the invention. In the drawings:
FIG. 1 is a flow chart of a method for repairing a waterproof impermeable layer of a mountain cave depot according to the invention;
the same reference numerals will be used throughout the drawings to refer to similar or corresponding features or functions.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
FIG. 1 is a flow chart of a method for repairing a waterproof impermeable layer of a mountain cave depot according to the invention;
as shown in fig. 1, the method for repairing the waterproof and impermeable layer of the mountain cave depot according to the embodiment repairs the leakage conditions caused by different positions and different reasons of the cave depot according to the characteristics of the separated wall type mountain cave depot. The leakage of the mountain cave depot is generally linear or point-plane.
The method comprises the following steps: repairing a structural layer, repairing a surface layer and repairing a decoration layer.
1. Repair of structural layers
When the vault of the cave depot needs to be repaired, the repair of the structural layer comprises laying at least three terylene waterproof coiled material layers in the leakage range of the outer wall of the leakage part. The vault of the wall-type mountain cave depot is far away from the rock wall, so that workers can be accommodated in the vault, the workers can be accommodated above the outer wall of the vault for operation, and the structural layer of the vault can be repaired by adopting a method of paving waterproof coiled materials.
Laying at least three polyester waterproof coiled material layers comprises: and dismantling a base layer in the seepage range on the upper part of the outer wall of the vault, leveling, and paving each layer of terylene waterproof coiled material layer, wherein the terylene waterproof coiled material layer comprises the steps of uniformly brushing cement slurry adhesive and paving the terylene waterproof coiled material.
The concrete operation can be to clear up the rubble on the outer wall earlier for a long time, demolish the basic unit, clear up the rubbish that produces after demolishing, after the clean up, basic unit face levels, scribbles three-layer dacron waterproofing membrane layer in this embodiment. When three polyester waterproof coiled material layers are coated, a first cement paste binder layer is uniformly coated on a base layer surface, a first polyester waterproof coiled material layer is paved, a second cement paste binder layer is uniformly coated, a second polyester waterproof coiled material layer is paved, a third cement paste binder layer is uniformly coated, and a third polyester waterproof coiled material layer is paved.
Each layer of cement paste adhesive is uniformly coated, does not expose the bottom and is not accumulated, and the polyester waterproof coiled material is paved immediately after the cement paste adhesive is coated, so that the bonding quality is prevented from being influenced by overlong time. The full-paving method is adopted for paving each layer of terylene waterproof coiled material, the terylene waterproof coiled material cannot be wrinkled, the coiled material cannot be stretched by force, and air and redundant adhesive under the terylene waterproof coiled material are removed while paving. The bonding compactness between the first layer of terylene waterproof coiled material and the base layer and between the first layer of terylene waterproof coiled material and each layer of terylene waterproof coiled material is ensured. When each layer of terylene waterproof coiled material is paved, the lap joint width of each layer of terylene waterproof coiled material is not smaller than 100mm, the joints of two adjacent terylene waterproof coiled materials are staggered by one third of the width, and the joints of the upper layer of terylene waterproof coiled material and the lower layer of terylene waterproof coiled material are staggered by one third of the width, so that the leakage at the joints is avoided.
The preparation of the cement paste binder is very important, the preparation quality is related to the bonding quality, and the cement paste binder is a mixture of 425 cement and waterproof glue powder. The proportion of the rubber powder, 425 cement and water is controlled to be (8-9) to 100 to (20-25), and the mixture is fully stirred for 10 minutes by electric power, so that the mixture has excellent plasticity, is uniform, has no sediment, has no coagulum and has no segregation phenomenon, and can be used.
Because the vault at the corner of the cave depot is easy to leak, when the vault at the corner of the cave depot needs to be repaired, one more terylene waterproof coiled material layer is paved compared with the vault at the straight passage; the terylene waterproof coiled material layer at the inner and outer corners of the vault is paved into an arc shape, so that the terylene waterproof coiled material is prevented from being folded and damaged, and the radius of the arc shape can be 20mm.
Because the distance from the wall body of the wall-type mountain cave depot to the rock wall is smaller, workers cannot be accommodated, and leakage repair of the wall body can only be operated on the inner wall side of the cave depot, so that the repair of the wall body structural layer adopts grouting repair in the wall body.
In the method, when the wall body of the cave depot needs to be repaired, the corresponding slurry is selected for injection according to the leakage condition during the repair of the structural layer. Specifically, the surface leakage part is injected by adopting water curing grouting material; injecting the acrylate grouting material into the point-like leakage position; injecting the linear leakage part by using epoxy resin grouting material; the leakage part of the deformation joint is injected by hydrophilic two-component polyurethane grouting material.
The external form is in the form of planar leakage, which is generally caused by concrete honeycomb pitting surface, and is injected by water curing grouting material. The water curing grouting material is a nano biological grouting plugging material, is a nuclear molecular polymer taking water as a dispersion medium, namely, a small amount of A component material and a trace amount of B component material are mixed with a large amount of water to form an acid and alkali corrosion resistant, high-flexibility and high-elasticity waterproof colloid, and can play roles in stopping water, seepage and plugging. Under the control of special grouting equipment pressure (0.4 MPa-0.6 MPa), the water curing grouting material can infiltrate into a water-permeable gap in the construction process, and after AB two components are mixed, a quantum curing reaction can be instantaneously generated, so that a damaged and empty waterproof layer and a seepage channel can be filled and repaired and are glued with capillary seepage channels in concrete to form a dynamic waterproof layer, and planar seepage caused by honeycomb pitting surface and the like is effectively treated, thereby achieving the aim of repairing the waterproof and impermeable layer.
External forms are shown as punctiform leaks, typically caused by concrete holes, and are injected with an acrylate grouting material. The grouting material of acrylic acid salt is an environment-friendly waterproof and seepage-proof chemical grouting material, which is based on acrylic acid salt, takes water as a diluent and contains a resin and an initiator. Under the action of a certain initiator, a high-elasticity gel is formed through chemical reaction. The concrete can permeate into a gap with the width of 0.1mm, can effectively treat spot leakage caused by concrete holes and the like, has adjustable curing time, can be controlled to be 30s-2min after rapid curing, and can be controlled to be more than 10min after slow curing.
The external form is a linear leakage, which is generally caused by concrete cracks, and is injected by using epoxy resin grouting materials. The epoxy resin slurry can be used for grouting micro cracks in a concrete structure and cracks on the surface of a rock mass base layer, so that the overall compactness and safety of the structure are achieved, and particularly in concrete micro-crack treatment, the effect of the epoxy resin grouting slurry is outstanding. The adhesive has better performance, the slurry has small viscosity and good fluidity, and the adhesive is matched with toughening agent, thixotropic agent and other auxiliary agents, so that the solidified colloid polymer has good compression resistance and impermeability, larger bonding strength and good toughness.
The external form is shown as large-area leakage at the deformation joint, generally leakage caused by the deformation joint, and hydrophilic two-component polyurethane grouting material is adopted for injection. The hydrophilic double-component polyurethane chemical grouting material is a polymer grouting plugging material which is chemically synthesized by polycyanate and polyhydroxy polyether, and the slurry is quickly foamed after being mixed with water, and then is expanded and solidified to form an elastic colloidal aggregate, and when encountering water again, the slurry can continuously absorb water to expand, and the state is similar to a piece of sponge, so that linear leakage caused by concrete cracks is effectively treated.
Grouting process: measuring paying-off, distributing pouring points, drilling pouring holes, burying grouting pipes, grouting operation, grouting effect inspection and plugging grouting holes.
Aiming at linear leakage and deformation joint leakage, V-shaped grooves with the depth of 30mm-40mm are chiseled at intervals along the leakage lines or joints on the inner wall, grouting pipes are buried in the V-shaped grooves, and leakage blocking agents are adopted for compaction and sealing between the grouting pipes and the V-shaped grooves to prevent slurry from being discharged during grouting. The maximum continuous grouting pressure is not more than 0.6MPa, preferably 0.4-0.6 MPa, and the grouting is carried out, if the slurry leakage is found in the injection process, the slurry leakage is blocked by adopting a plugging agent in time; and (3) under the specified maximum grouting pressure of 0.6MPa, injecting until no slurry is fed, keeping the slurry shielding time at least 5 minutes, and ending the injection. If the grouting pipe is desized after the fact that the grouting pipe is desized (caused by fine cracks of concrete and capillary absorption), the supplementary grouting is necessary. The set distance may be 300mm.
Holes with the depth of 30mm-40mm are drilled on the surface or points of the leakage on the inner wall aiming at the planar leakage and the point leakage, grouting pipes are buried in the holes, and the grouting pipes and the holes are compacted and sealed by adopting a plugging agent to prevent slurry from being discharged during grouting. The maximum continuous grouting pressure is not more than 0.6MPa, preferably 0.4-0.6 MPa, and the grouting is carried out, if the slurry leakage is found in the injection process, the slurry leakage is blocked by adopting a plugging agent in time; and (3) under the specified maximum grouting pressure of 0.6MPa, injecting until no slurry is fed, keeping the slurry shielding time at least 5 minutes, and ending the injection. If the grouting pipe is desized after the fact that the grouting pipe is desized (caused by fine cracks of concrete and capillary absorption), the supplementary grouting is necessary.
After the structural layer of the vault or the wall is repaired, the repair of the surface layer of the vault or the wall and the repair of the decoration layer adopt basically the same method, and the construction of workers in a cave depot is realized.
2. Repair of surface layer
The repair of the surface layer comprises the steps of firstly scraping a cement-based permeable crystalline waterproof layer on the inner wall of the leakage part, and then scraping a plugging agent for leveling.
The cement-based permeable crystalline waterproof layer is coated by scraping, firstly, the cement-based permeable crystalline waterproof material is prepared, whether the preparation is successful or not is related to the whole waterproof quality, the control of the water-cement ratio is critical, generally, 3-4 parts of cement-based permeable crystalline material is added with 1 part of clear water and is uniformly stirred, the construction can be carried out, the stirred cement-based permeable crystalline waterproof material is used up within half an hour, and the hardened cement-based permeable crystalline waterproof material cannot be reused. The cement-based permeable crystalline waterproof material can repair cracks below 0.3mm, can effectively fill various gaps in concrete, is closely linked with the concrete, forms a stable structure, increases structural strength, is not easy to undergo chemical reaction again, and prolongs the service life of the concrete structure.
The doctor blade coating and leveling the leakage stopping agent comprises doctor blade coating a first layer of leakage stopping agent with the thickness of 0.7-0.8 mm, spraying the surface of the first layer of leakage stopping agent to be wet after the first layer of leakage stopping agent is hardened, and carrying out moisture preservation and maintenance after the first layer of leakage stopping agent and the second layer of leakage stopping agent are hardened.
The scraping time interval of each layer of plugging agent is about 1 hour, and the scraping of two layers of plugging agents is compact when scraping, so that the strict joint is important to pay attention to. The total thickness of the two layers of the plugging agent is about 1.5mm. And after the two layers of the plugging agent are hardened, immediately performing moisture preservation and maintenance to prevent pulverization. The site can be maintained by adopting a water spraying mode, and the maintenance time is 2 days.
The ingredients of the plugging agent are retarder plugging agent, and the ingredients are powder comprising water=1: (0.32-0.35), and stirring with a hand-held stirrer to obtain precipitate particles, clot, etc.
3. Repair of finishing layer
The repair of the decoration layer comprises the steps of spraying primer and then spraying waterproof special mortar on the repaired surface layer. The process comprises the steps of basic layer treatment, primer spraying, additional layer construction, waterproof special mortar spraying by a multifunctional spraying machine, inspection and repair. The multifunctional spraying machine is controlled in a full pressure state.
The primer adopts emulsion paint, and the whole inner wall in all restoration ranges is basically decorated neatly by adopting the primer. Because the primer with darker color used at the leaking part can not be completely covered when the surface layer is repaired, the primer or putty powder is added on the primer with darker color at the upper part for further covering, and finally the integral spraying machine is used for spraying waterproof special mortar.
The waterproof special mortar material comprises waterproof agent, cement and sand, wherein the proportion of the waterproof agent, cement, sand and water is 0.05:1:2.6:3.3, the thickness of the waterproof special mortar is more than 1.5mm.
The repair process of the wall body of the cave depot is also suitable for repairing the wall body of the wall-attached cave depot.
The repairing method of the waterproof and impermeable layer of the mountain cave depot according to the present invention is described above by way of example with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that various modifications may be made to the method for repairing a waterproof barrier for a cave depot as set forth in the present invention described above without departing from the spirit of the present invention. Accordingly, the scope of the invention should be determined from the following claims.
Claims (7)
1. The method for repairing the waterproof and impermeable layer of the mountain cave depot is characterized by comprising the following steps of:
repairing a structural layer, repairing a surface layer and repairing a decoration layer, wherein,
when the vault of the cave depot needs to be repaired, the repair of the structural layer comprises paving at least three terylene waterproof coiled material layers on the outer wall of the leakage part, and when the wall of the cave depot needs to be repaired, the repair of the structural layer comprises the steps of selecting corresponding slurry at the leakage part according to the leakage condition and injecting the slurry from the inner wall;
the repair of the surface layer comprises the steps of firstly scraping a cement-based permeable crystalline waterproof layer on the inner wall of a leakage part, and then scraping a plugging agent for leveling;
the repair of the decoration layer comprises the steps of spraying primer and then spraying waterproof special mortar on the surface layer;
the selecting the corresponding slurry injection according to the leakage condition comprises the following steps: the surface leakage part is injected by adopting water curing grouting material; injecting the acrylate grouting material into the point-like leakage position; injecting the linear leakage part by using epoxy resin grouting material; the leakage part of the deformation joint is injected by hydrophilic two-component polyurethane grouting material;
v-shaped grooves with the depth of 30mm-40mm are chiseled at intervals of a set distance at the linear leakage position and the deformation joint leakage position, grouting pipes are buried in the V-shaped grooves, and leakage blocking agents are adopted to compact and seal the grouting pipes and the V-shaped grooves; injecting under the condition that the maximum continuous grouting pressure is not more than 0.6MPa, wherein the slurry leakage is detected to be blocked by a plugging agent in the injection process; injecting until no slurry is fed, keeping the slurry shielding time at least 5 minutes, and ending the injection;
holes with the depth of 30mm-40mm are drilled at the planar leakage positions and the point leakage positions, grouting pipes are buried in the holes, and leakage blocking agents are adopted for compaction and sealing between the grouting pipes and the holes; injecting under the condition that the maximum continuous grouting pressure is not more than 0.6MPa, wherein the slurry leakage is detected to be blocked by a plugging agent in the injection process; and (5) injecting until no slurry is fed, keeping the slurry shielding time at least 5 minutes, and ending the injection.
2. The method for repairing a waterproof and impermeable layer of a mountain cave depot according to claim 1, wherein the laying of at least three polyester waterproof coiled material layers comprises:
and removing the base layer at the leakage part on the upper part of the outer wall of the vault, leveling, and paving each layer of terylene waterproof coiled material layer, wherein the terylene waterproof coiled material layer comprises the steps of uniformly brushing cement slurry binder and paving the terylene waterproof coiled material.
3. The method for repairing a waterproof and impermeable layer of a mountain cave depot as recited in claim 2, wherein the cement paste binder comprises rubber powder, 425 cement and water, and the ratio of the rubber powder to the 425 cement to the water is (8-9) to 100 to (20-25).
4. The method for repairing a waterproof and impermeable layer of a mountain cave depot according to claim 1, wherein when a vault at a corner of the cave depot needs to be repaired, one more polyester waterproof coiled material layer is paved than a vault at a straight passage; the terylene waterproof coiled material layer is paved into an arc shape at the inner and outer corners of the vault.
5. The method for repairing a waterproof and impermeable layer of a mountain cave depot as claimed in claim 1, wherein the blade-coating and plugging agent leveling comprises: and scraping and coating a first layer of plugging agent, wherein the thickness of the first layer of plugging agent is 0.7-0.8 mm, spraying the surface of the first layer of plugging agent to be wet after the first layer of plugging agent is hardened, scraping and coating a second layer of plugging agent, and preserving moisture and curing after the second layer of plugging agent is hardened.
6. The method for repairing a waterproof and impermeable layer of a mountain cave depot as claimed in claim 1, wherein a primer or putty powder is further added on the primer at the upper part of the leaking part.
7. The method for repairing a waterproof and impermeable layer of a mountain cave depot as claimed in claim 1, wherein the cement-based permeable and crystalline waterproof layer comprises cement-based permeable and crystalline material and water in a ratio of (3-4): 1.
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| CN2934418Y (en) * | 2006-03-01 | 2007-08-15 | 郭顺妮 | Novel configuration high polymer composite water-proof construction material capable of fitting all kinds of architecture |
| CN103924782A (en) * | 2013-01-15 | 2014-07-16 | 永升建设集团有限公司 | Polyethylene dacron coiled material-cementitious capillary crystalline waterproofing construction method |
| CN104696664B (en) * | 2015-02-09 | 2017-04-19 | 郑州安源工程技术有限公司 | High-polymer composite grouting method for leakage and sand inrush blocking of underground pipeline |
| CN105401962B (en) * | 2015-06-29 | 2018-04-17 | 广西金雨伞防水装饰有限公司 | The hermetically sealed waterproof construction method of side wall, engineering top surface |
| CN106593494A (en) * | 2017-01-07 | 2017-04-26 | 中铁十五局集团第五工程有限公司 | Grouting water plugging method for tunnel |
| CN107989068A (en) * | 2017-12-07 | 2018-05-04 | 中国市政工程西北设计研究院有限公司 | A kind of waterproof construction of pipe gallery outer wall |
| CN108457485B (en) * | 2018-02-06 | 2020-06-26 | 厦门防水博士建筑工程有限公司 | Repairing process for concrete floor cracking and water leakage |
| CN208733691U (en) * | 2018-08-30 | 2019-04-12 | 广东碧通防水补强技术应用工程有限公司 | Basement bottom board leakage repairs structure |
| CN110318552A (en) * | 2019-04-22 | 2019-10-11 | 杭州市园林工程有限公司 | A kind of indoor wall percolating water repairerment technique |
| CN210685016U (en) * | 2019-07-16 | 2020-06-05 | 河南宝盈建设集团有限公司 | Connection and lap joint structure of polyethylene polypropylene fiber waterproof coiled material |
| CN111271084B (en) * | 2020-01-20 | 2020-11-17 | 北京市市政工程研究院 | Tunnel crown arch structure repairing method and repairing structure |
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