Changzhou waterproof plugging Trapping units are welcome to visit the new Grand plugging! The company dedicated to provide you with the best quality service! National toll-free 24-hour hotline: 13961999789 Business Service Hotline: 15862087268 The company has offices in the country: Eastern Region Northern Region Southern Region Central District, Northwest meet your company's needs, you can receive a call the day arrived at the scene to provide satisfaction... The construction program and product pricing. Willing to cooperate with your company happy, mutually beneficial and win-win. Plugging a subway construction program, in addition to the floor within the project Introduction Station has two centralized leak, the rest is mainly vertical sidewall construction joints and cracks in the sidewall leakage. Mainly for floor cracks (crack width were 1mm or more, even up to the individual cracks 5mm) and Honeycomb to crack and leak tunnel ring, followed by vertical sidewall construction joints and cracks leaking. See "Statistics of leakage of water." Second, the cause of leaking water leakage according to the status quo, is divided into the following four cases for analysis. 1, Pock formation Honeycomb cellular leaking concrete directly related. The main reason is leakage or vibration during the construction period and occurred less vibration, this Honeycomb in a concrete structure, some independent existence, while others were coherent. Therefore, in the event of seepage, leakage performance when seepage into pieces, drain or into shares of leakage phenomenon. First, when the deformation crack Yuantong station ~ wins station floor tunnel of concrete structures has not yet reached the required strength design, squeeze caused by envelope: 2, load-deformation crack crack leaking load-deformation caused by two situations , coupled with the uneven settlement of the tunnel, causing cracks in the tunnel to the ring; the second is that even if the concrete has reached the design strength, and cracks in the concrete wall on the back of ultra-load stacking caused. Cracks appear in the latter generally more obvious, is penetrating cracks. 3, when the old and new concrete joints (construction joints) water leakage in the original concrete structure continues to pour concrete, the original surface of the concrete foundation no cutting hair treatment or after cutting hair is not clean or not rinse, poured concrete mixture on the original concrete foundation. This will result in the formation between the old and new concrete joints together seepage, leakage gap. 4, since stress cracks in the concrete water leakage of concrete since the stress cracks in the concrete wall is often easy to produce, it is usually in the form of up and down through the cracks in the concrete walls of the entire exhibit regularity cracks, general In a 3 ~ 5m. This kind of self-stress concrete cracks are caused due to the heat of hydration of cement concrete reaches a certain extent, the expansion stress of concrete began to disappear at a time when the concrete began to produce contraction. This shrinkage is uniform shrinkage, so in such conditions, cracks concrete wall exhibits regularity of cracks. 5. Deformation of concrete water leakage in the construction process water stop not securely installed, resulting in a shift when tamping water stop. Another is near the concrete drain water stop ramming or tamping not dense, causing leaks exist on both sides of the concrete Deformation holes. Third, plugging measures based on the situation analysis of the causes of water leakage, are taking measures to deal with the following four plugging. 1, for the Honeycomb leaking identify major leakage points, marked the mark, with the impact hammer drill, aperture 10mm, hole depth of 100 ~ 300mm, then the rest of the leakage point blocked, then the hole injection pressure ultrafine grout, grout within a certain amount of micro-expanders, then add the right amount of pressure injection of sodium silicate according to the situation. Two, take two steps for load-deformation plugging cracks leaking. One is to continue the development of cracks, using the hole in the tunnel grouting grouting way inside lining and the outer lining of combining grouting. Firstly, in the outer lining of the double fluid injection pump pressure injection of ordinary portland cement P.O32.5, adding an appropriate amount of sodium silicate according to grouting situation, and then in the lining pressure injection of water-soluble polyurethane slurry. Another development is no longer for cracks or slow the development of ultra-fine pressure injection grout, grout within a certain amount of micro-expanders, then add the right amount of pressure injection of sodium silicate according to the situation. 3, for the old and new concrete joints (construction joints) take pressure injection of water leakage moisture-curable epoxy slurry plugging. 4, take two measures for self-stress concrete cracks leak water phenomenon. One is for the wet cracks or leaky joints, pressure injection of moisture-curable epoxy slurry plugging. Another is for dry joints, pressure injection common epoxy slurry seal seam. 5, leakage of water for Deformation Deformation concrete phenomena taking place in the outer structure of the first plus three high pressure grouting pile will Deformation and isolated, and then in the vicinity of the concrete structure is not dense Deformation place pressure injection of ultrafine grout. Fourth, the construction plan to take in the tunnel grouting hole grouting way inside lining and the outer lining of combining grouting. (A), tunnel lining outside grouting construction tunnel lining is divided into two outer grouting construction outside the cave and cave conditions. Construction outside the cave is the use of triple tube high pressure jet grouting pile on the outside of the deformation joint cement, sodium silicate and water injected into the soil, and stirred to make soil consolidation so as to achieve the purpose of sealing the soil particles through the blades. Construction is to structure the cave floor or sidewall drilled with a pneumatic drill, drill a small hole ф40mm, and the soil pore water pressure outside the vicinity of the mud or cement - silicate double slurry, plug leakage channel and soil solid knot so as to achieve the purpose of sealing. 1, the material - glass double cement slurry cement - silicate double slurry used and with two, grouting hole layout ⑴ cloth when construction on the outside of the outer side wall of the hole Deformation arranged three high pressure grouting pile, the purpose is to make Deformation and isolated. Cloth hole cave under construction cracks and leaks case settings. ⑵ drill hole bored pile construction arrangement according to drilling position, using pneumatic drill into the hole before drilling artificial undercutting positioned so that when applied to drilling to avoid structural steel. Aperture: Ф40, hole depth: drilling beyond the outer structure wall, buried deeper than the outer sidewall structure. 3, grouting tube processing and installation process ⑴ grouting grouting pipe used in the steel tube processing φ20mm's made of grouting pipe length 0.8m, the tail made into wire port connector. ⑵ drilling grouting pipe after installation is complete with high-pressure air wash hole, install artificial grouting pipe, to prevent the gap grouting pipe and orifice ran slurry pipe should end within 0.3m ~ 0.4m range stuffing cotton yarn and with fast-setting sealing agent sealing pipe. Small pipe joints installed grout stop valve to close at the end of the grouting in time to prevent the return pulp. 4, grouting tunnel grouting accordance with the "bottom-up" principle, first floor tunnel construction, then construction tunnel side walls, and finally construction of the tunnel roof. Grouting pressure of not more than 1.0Mpa appropriate, and when grouting to follow after the first dilute concentrated under the principle of hierarchical piecewise increase pressure grouting. When grouting cement slurry mixing well before allowing use fine sieve into the grouting barrel, the first dry hole injection grouting, after the injection of water holes, such as the case of channeling pulp slurry or a small run, the grouting interval plus large, in case stocks run like syrup, water slurry can be suspended, modified cementing ~ glass double slurry. Grouting is difficult to determine because of the amount of each root end grouting grouting pipe required standards for grouting pressure of 1.0MPa as the standard. After the end of each grouting, the slurry stop valve closed, unscrew the pipe and the other links continue grouting grouting pipe. The slurry to be solidified and then unscrew the valve and clean the valve to facilitate recovery. Grouting process, the person recording grouting the situation and adjust the grouting pressure, speed according to the actual situation, ensure grouting effect. 3 to 5 days after grouting is completed, there are still those who carried out the sidebar seepage until the sealing effect. 2, steps and methods (1), the base surface treatment: use a small hammer, a chisel, a wire brush to clear loose slag concrete surface, floating pulp, being careful not to plug the cracks when cleared, you can not wash with water, and use a cotton dipped alcohol scrub. (2) along the seam gouges and drill: Full-hewn along the crack width and depth are 10 ~ 20mm V-groove, drill a hole in the first end and the bifurcation of the crack, and the other at the crack width of 0.2mm or less segment by drilling spacing 300mm, width of cracks in accordance with the above paragraph 0.2mm pitch 500mm drilling. Slots are required to tick the slot after the clean up. Clean up a clean borehole embedded φ8 mm mortar with epoxy resin sealing agent or small tubes. (3) closed: To ensure the success of grouting, cracks must be an enclosure. Filling or sealing agent epoxy resin clay, small tubes are slotted in the cracks with epoxy resin mortar or sealing agent fixation, be careful not to block the nozzle. I. Project Overview of the basement, from the building and put into use since the original waterproof layer due to aging and raw concrete walls is not dense and long-suffering soil water, groundwater, etc. soak erosion, seepage occurs multiple leaks, basement so often in wet environments. Therefore need to be plugging and patching treatment. Second, the establishment on the basis of: a national standard GBJ108-87 "underground works waterproof technical specifications" two national standards GBJ208-83 "underground works waterproof construction and acceptance of" 3, "waterproofing Atlas" 4, China Association for Engineering Construction Standardization Standard CECS117: 2000 "Deformation liquid storage material structures design procedures" five national building materials industry standard JC483-92 "polysulfide sealant" 6, GB5018-2001 underground works waterproof technical specifications 7, GB50208-2002 rehabilitated housing leakage specification Third, a construction preparation, technical preparation 1.1 prepare construction program. 1.2 technical disclosure. 1.3 establishment of labor, materials, machinery and tools to plan, schedule shifts. 1.4 supplement the rules, norms, standards and technical information form. 2, site preparation 2.1 familiar scene. 2.2 Construction of the water, and electricity provided by the point of the construction unit, introduced the work to complete the construction sector. 2.3 with the construction required the erection of temporary facilities or hiring. 2.4 Construction and lighting in line with "construction site temporary electrical safety specifications", during the construction of water main living water. 3, all the raw materials used in construction inspection 3.1, its quality should comply with the design requirements and the relevant specifications and clearly indicate the manufacturer, material properties, product type, production date. 3.2 material should have product certification, brochures or inspection reports. Must be shipped to the construction site before construction, and after the site supervising engineer consent, be put into use. 3.3 When necessary, to deal with raw materials for sampling and testing, the specific product specifications to the supplier standards prevail. Unqualified raw materials shall not be used. Changzhou waterproof plugging trap unit