Zhenjiang plugging company specializing Welcome Welcome to the new big company! Zhenjiang two countries waterproof plugging company qualification! National toll-free 24-hour hotline: 13961999789 National Unification Advisory Tel: 15862087268 company has national offices: Eastern Region Northern Region Southern Region Central District Zhenjiang plugging Northwest advanced technology, reasonable price, good faith compliance....! Zhenjiang plugging plugging more professional group! Construction program and product pricing. Willing to cooperate with your company happy, mutually beneficial and win-win. Plugging a grouting program, Project Overview xxx xx Metro Line Station - Hongshan Square Station Interval right line (mileage for DK18 + 260 ~ DK18 + 300, about 40m), severe bleeding, leaks, field drilling probe When big share gushing. For this section of the leakage point to take the high-pressure perfusion method of plugging and tube sheet repair defects treated. Second, the establishment on the basis of a "shield tunnel construction and acceptance of norms" (GB50446-2008) 2, "the construction quality of underground water engineering acceptance" (GB50208-2002) 3, "underground railway construction and acceptance" (GB 50299 -1999) 4, "anchoring and grouting Technical Manual," the second edition of the three, a quality goal, by making this section of the leakage area of ??governance reached no seepage does not leak; 2, the segment reached "shield tunneling and after treatment acceptance of "acceptance criteria. Fourth, the construction preparation 4.1 List of construction machinery equipment ▼ number of major equipment machinery and equipment Name Type Quantity Remarks a drilling machine BOSCH2-22 1 sets two high-pressure grouting plugging machine Luther 2 3 pairs of fluid injection pump KBY-50 / 702 mixer three sets of four with GFCI 5 cable tray 2 cable less than 50m 6 hammer, hammer 2 3 4.2 1 construction materials, material requirements ① has good filling, easy into the formation and structure ; and ② good slurry stability, can be coagulated in a certain period of time, small shrinkage upon curing, and the need to have a certain body grouting adhesion; ③ a certain combination of compressive, tensile strength, and high early strength, low permeability; ④ non-toxic, non-polluting, such as groundwater aggressive, you should also have a corresponding erosion resistance; ⑤ grouting process is simple, convenient and safe. ▼ main materials list the number of parameters No. Material name Technical Note 1 double liquid cement grout: dehydrating agent = 10: 6 depending on site conditions set two cement: toughening = 1: 0.01 depending on site conditions set 3 cement: plasticizer = 1 : 0.06 depending on site conditions set 4 epoxy cement: epoxy resin = 1: 0.2 depending on site conditions set 5 epoxy resin: hardener = 1: 0.4 depending on site conditions set 6 Epoxy: thinner = 1: 0.1, as the 7 acrylate scene set cement: acrylate = 1: 0.4, as the site conditions set 8 acrylate: plasticizing agent = 1: 0.25 depending on site conditions set 9 acrylate: accelerator = 1: 0.15 set 10 depending on site conditions acrylate : initiator = 1: 0.04 depending on site conditions set ▼ 4.3 Staffing Staffing jobs serial number list (class) Note 1 foreman a duty to do construction management, responsible for labor arrange two mechanic exclude a charge of mechanical failure and pipe Road cleaning 3 grouting work four 44 responsible for operating the grouting rig roughnecks responsible for the operation of 4 4 5 pulp slurry is responsible for the configuration of an electrician is responsible for six rigs, power supplies, circuit, lighting and electrical troubleshooting 7 driver responsible for a material transportation 8 technician a mastery of technology, quality, complete construction logs and records of five, the construction program and process method for the actual site conditions leakage of water, the water point to focus a large area of ??leakage or parts used in accordance with the drilling grouting. Cited hole drilled using professional equipment for grouting hole diameter of 40mm, hole spacing cloth 1m × 1m, from the bottom up in turn two liquid injection grout, epoxy, acrylic salt block. Due to the rail line in the area have been running jobs, daily working time is not more than three hours, in order to ensure the cement slurry and slurry can inject other full, ensuring grouting effect, consider two grouting grouting while the actual construction; Should After a hole in the first days of not inject, you need to continue opening the next day to repeat the grouting, until the optimum effect. ▲ 5.1 Grouting Grouting Process Flow Chart grouting pipe processing rig construction preparation cited two liquid grout hole injection pipe, sealing packers Note formulated epoxy acrylate slurry injection grouting construction process 5 5.2 5.2 .1 grouting pipe laying ① cloth hole spacing according to the work surface grouting hole position will be marked with red paint. ② The drill floor area rail lines were drilled hole lead. ③ The hammer will be processed into the top strata grouting pipe, grouting pipes exposed 10-20cm. ④ After grouting pipe laid, using cotton + quick-setting cement mortar to seal the grouting around the tube to fill in, in order to avoid returning slurry grouting construction. 5.2.2 grouting operations in accordance with certain technical parameters ① were good preparation double liquid grout, epoxy, acrylic salt. ② Connect the grouting pipes, dual fluid injection pump to the grouting hole, the first two-fluid injection grout until no water leakage so far, and then injected epoxy reinforcement, and finally into the acrylate chemistry materials. ③ After completion of grouting, grouting pipes cleaned to avoid blocking a hole under the influence of normal construction. Six, plugging construction Note ① double liquid grout injection when the selected input slurry pipe must have sufficient strength, slurry pipe flow smoothly. ② over the last injection holes, re Note To lengthen the drill hole conduction to ensure re-injection effect. ③ grouting process should always observe the changes in slurry pipe grouting pressure and output, when the pump pressure surge, reducing the amount of grouting, mostly poor pipe blockage or note thereof, when the pump pressure does not rise up, into the plasma volume is large, check the slurry viscosity and clotting time. ④ Connect grouting pipes to prevent running pulp, pulp risk; seven, quality assurance measures must be strictly in accordance with the program of construction ① construction, not just to change the construction plan and construction process; ② construction methods in order to ensure proper implementation of the management school full-time responsible technical officers at the scene and make the construction site of record. Construction: 1, highway crossing the river, the railway tunnel construction settlement, expansion joints, cracks in the bottom leaking water waterproof plugging construction. 2, the underground base construction, underground engineering, civil air defense projects, such as sewage treatment pond water leakage plugging construction of concrete structures. 3, basements, underground garages, underground passages, heat pipes, and other types of underground seepage pit plugging construction. 4, pool, cable channel pit, mine access, elevator shafts, foundation pit construction joints plugging leakage of water with water-construction. 5, concrete structure, cooling tower circulating cold water channels, pipes, sewage treatment pond seepage water corrosion plugging the construction project. 6, culverts, caisson, pump house, dam, bridge, roof, tunnel, take control plugging leakage of water drainage works construction. 7, hydraulic reservoir dam grouting, plugging cracks in the tunnel, seepage, dam seepage reinforced concrete cracks. 8, coal mine coal handling systems, coal handling bridge, drilling, well Wall, borehole plugging leakage of water reinforced concrete crack. Zhenjiang plugging company specializing Welcome