Hebei tunnel plugging professional processing company - Hui Jing plugging

Hui Jing waterproof engineering company to undertake professional: expansion joint sealing and other waterproof plugging. Daily life, general construction company to solve the problem is to use a waterproof joints flax, pouring asphalt ointment treatment, but because these materials itself waterproof aging, shrinkage, cracking, foundation settlement and other factors are not the same variety of reasons the leakage problem, a serious impact on the daily use of the building. First, the causes of the leakage generated: 1, the root cause: The basic process is not fully considered in place, resulting sedimentation coefficient different joints on both sides of the side which appears high, while low situation. 2, the design reasons: expansion joints waterproof design is too simple, simply can not meet the requirements telescopic. 3, sealing material selection: sealing materials generally are common sealant, anti-aging, scalable performance is low, thus the aging waterproof layer cracking. Molecular grouting waterproof plugging nanoparticles new technology is suitable for the following types of projects: 1. culvert, settlement, expansion joints and Deformation, back strip, construction joints, cracks off the bottom of sewage leaking water waterproof plugging grouting leak repair. 2. The underground base construction, underground engineering, civil air defense projects, bank vault, floor and other concrete structures pond water leakage plugging construction. 3. The mine access, borehole, caisson, dams, bridges, roofing, tunnel, loop waterways, culvert, drainage works take leakage plugging maintenance. The coal mine coal handling system, threading pipe, casing, coal handling bridge, drilling, well Wall, tailings leak sealing cracks in concrete culvert. 5. The cable trench pit, cable tunnels, cable wells, elevator shafts, siphon wells, valve shafts, foundation pit engineering leak water, with water plugging operations construction. 6. basements, underground garage, parking, underground passages, heat pipes, excavation, shafts, and other underground works plugging leaks repair construction. 7. The concrete structure, cooling tower, cooling tower, chimney fouling platform, through the pump room, pipelines, sewage treatment pond project leakage water trap maintenance. 8. highway tunnel, tunnel, cross-river tunnel, an artificial lake, water tunnels, the railway tunnel leak plugging cracks in mass concrete. 9. hydropower projects dock cofferdam, lock works, pumping stations, hydropower stations, reservoirs, dam grouting cracks reinforcement concrete floor expansion joint sealing treatment process 1, the primary requirements for expansion joints on each side 50cm place separated by cutting machine to cut (to prevent damage when hit chisel surrounding tiles), and then clear the floor tiles and the mortar joints between the Department and the layer cut until the base layer (concrete floor surface) to clean up. 2, laying floor tiles first before laying tile 2.1 on the water to soak for an hour, to prevent it from cracking, the process of laying almost the same type and size of tiles affixed in the same area. Be sure to clean up ground during the construction of a clean 2.2, if no serious bumpy ground, the line will be able to begin construction of the bomb. 2.3 Pull on the diagonal plane construction, hire center construction plane, then in accordance with the design of graphics, with cement mortar (cement and sand ratio of 1: 2) to make the tile adhesive slowly from the center to the edges open, hand soft reduction or tapped with a rubber hammer so that the ground cement. 2.4 In the process of laying between the tiles and the ground must use fully tamped cement, can not have gaps. Otherwise, other cement dries, people stepped on it easily broken. Plugging an underground garage, leakage analysis (1) plugging underground garage than concrete cooperation in the field of manufacturing construction imprecise, especially water-cement ratio increases, the concrete shorten large, showing cracks resulting in leakage. (2) on the concrete envelope layout do not use concrete plugging underground garage, underground garage and only the flexible sealing layer. (3) concrete protective layer thickness can not. Concrete protective layer according to the standard requirement should be 20mm ~ 35mm thick, but often because they can not ensure the construction and showed cracks constitute leakage. (4) does not pay attention to the details of the layout of the disposal of Deformation, construction joints, back strip, plugging underground garage way interface layout and other parts of the body to adopt concrete reservation wrong. (5) The concrete mixture, the amount of sand or mud mixed with debris, leaking into danger. (6) template look finishing unclean blockers brushing uneven seams close, concrete drain vibration less vibration, especially in and around embedded parts of the underground garage at the outer wall and the floor, showing cellular, Ma surface, holes constitute the underground garage leakage. (7) products of poor maintenance. Repairing the underground garage or underground garage plugging plugging data layer has been completed, because of improper care, construction careless and did not constitute damage to be repaired and constitute leakage. (8) poorly maintained concrete constitute early severe dehydration and the capillary channel. Second, the underground garage plugging construction engineering approaches based on the importance and use of the underground garage plugging requirements, determine underground works plugging underground garage levels for different parts of the project using the "anti, row, cut, blocking "linked, firmness and flexibility, tailored and comprehensive management. 2.1 AHD Contact underground pit selection cement mixing pile gravity retaining wall support, it constitutes around foundation sealing curtain, and depicted by precipitation in the placement of deep foundation pit precipitation points. Plugging in the underground garage earth excavation before, the group launched the well water pump precipitation, so plugging in the underground garage of concrete during construction, groundwater level has remained at basement sealing layer below 30cm. Surface water into the pit around nearby bright trench, ensuring plugging underground garage underground garage layout construction time without water, mud construction Keywords: joints plugging, plugging underground garage, plugging the cable trench, tunnel Plugging