Nantong company specializing in plugging the unit to welcome you an elevator shaft leak water Cause Analysis and Maintenance 1. Elevator shaft leakage causes (1) lift and negative angle four weeks severe leakage reason: because the floor do first waterproof layer. Then cast concrete wall sidewall, this has led to a concrete wall with the side wall of the elevator shaft bottom fault. Construction on the original waterproof layer waterproof effect should not play, so it will continue from groundwater seepage into the elevator shaft at fault. (2) civil construction, a lot of water has not drained the floor, drain, and directly to the concrete is poured into water, causing the floor surrounded by a lot of cellular, Ma surface, holes, loose sulfur. The transfer is not tight and the bottom, the bottom of the elevator shaft in position under the water line plus or minus zero 3m, groundwater pressure greater groundwater through holes, pockmarked face, cracks and loose at the leak to the bottomless pit, causing the elevator shaft water. (3) the shaft wall of water leakage reasons: because of the elevator and the wall (correct me well sidewalls negative zero to the pit below the horizontal plane around the training) divided into two cement mortar surface. And the inner and outer side walls of the elevator were not for water treatment, groundwater from wells cases wall facades penetrate into the wall of the elevator shaft and cause hydrocephalus. Elevator shaft leakage deal also set three options: block / block / block row collection method of plugging into the traditional methods and chemical grouting methods. 1, the traditional method of plugging is to cracks or leaks drilling, surface sealing, but the result is often blocked here, there began to leak. Because water can not rule movement in concrete internal cracks, leaking from a relatively weak position. 2, generally refers to chemical grouting material prepared by chemical slurry grouting mouth buried by drilling, the use of pressure injected into cracks in the structure, so that the diffusion, coagulation, to waterproof, sealing, reinforcement, reinforcement purposes. Commonly used in the repair of concrete structures deep cracks. According grouting pressure and speed can be divided into high and low pressure grouting method to quickly slow grouting method. Currently, chemical grouting method has been widely used in dam foundation, foundation reinforcement and seepage, underground heating pipes leaking wells treatment - heating pipes plugging wells - wells trap heating pipes, concrete bug fixes, and many other engineering fields. 3. Secondary pouring seam leakage of water, should tick into the groove along the inner gap, clean, filled, sealing materials, with quick-setting packer plugging material buried in the trench, perfusion polymer chemical grouting material plugging sealing; no leakage inspection after filling them with sealant and leveling polymer cement mortar and set flexible waterproof coating layer. Above the main building for water leakage case I am using imported nanoparticles molecule chemical agents and waterproof sealing materials formulated into a variety of chemical materials A, B two-fluid, when the two liquids mix after polymerization reaction, 30 seconds initial set, 2-3 minutes the reaction is complete, the final cemented colloids. Grouting injection structure layer using a water-soluble form, low slurry viscosity, permeability, can be injected into the cracks of 0.1mm or less; slurry in the wet, the water speed large, multi-criteria aggregation under water; gel also has good permeability, the case expansion of water, corrosion resistance and other characteristics, colloidal compressive 0.01-0.06MPa, tensile strength 0.02-0.04MPa. With a particular high-pressure grouting equipment, seepage into equal parts, it runs through the cracks and soil particles together between some concrete cracks and pores closed efficiency increase the carrying capacity of the soil, and ultimately more than 20 years without then leakage, so as to achieve the purpose of completely sealing, eliminating leaks construction companies and owner of worry! Second, the construction of a main application materials, materials Introduction The appearance of the product is light yellow to amber transparent liquid, which is in line with the polyurethane prepolymer with a variety of additives made of one-component high-pressure sealing materials, a fast and efficient Consolidation can both plugging reinforced polymer elastic material. Can be applied to a variety of projects from the Water Seepage reinforcement effect. 2, material characteristics (1) The material has good hydrophilic, can react with water, while generating CO2 gas, and against the current along the runoff channel penetration and diffusion, with the surrounding concrete, sand, soil and other consolidation, rapid forming an impermeable layer of hardened consolidation, has been widely used to block large pressure and prevent ground water gushing in water and water infiltration. (2) the material and concrete and soil particle bonding force, elastic consolidation can obtain high-strength body, so can fully adapt to the foundation or other primary deformation, it is not easy to find the beginning of the crack, and the resulting collapse reinforcement strong. (3) will not be broken up in an aqueous slurry of the structure, in which the reaction process, because the gas diffusion zone increases rapidly the effective consolidation obtained larger than many other types of chemical grout consolidation thereof. (4) According to the different needs of the project, you can adjust the viscosity of the liquid filling, and for small cracks after grouting concrete projects, such as basements, etc. can quickly penetrate into the slurry to form a strong bond, good permeability, strength of solid guitar body. (5) the slurry curing speed can be adjusted according to the construction. (6) the use of a single device to divide filling, easy to clean, simple and easy process, lower overall cost of construction. (7) consolidated body immersed in water is harmless, non-toxic, non-polluting. 3, material and technical guidance Item Specification Appearance: Light yellow - amber transparent liquid, Density: g / m3 1.0 ~ 1.10. Viscosity, 20 ℃, Mpa.s 100 ~ 400. Gel time tens of seconds to several very cohesive strength Mpa ≥1.0. Expansion,% ≥ 300. 20 pack of water three times, a construction organization, the project manager responsible for the implementation of the project system 2, the construction management system six, construction and operation of process points 1, the construction process: determine the leakage point → clean up leaking base surface cleaning → → → milling seam installation then the mouth filling perfusion pressure foam slurry → → → trap observe the demolition of filling the mouth → → → Check → acceptance slot patch 2, construction elements (1) quasi-seepage point play, the seepage area, clean up. (2) with a rapid sealing agent embedded grouting tube spacing should be based on the actual circumstances, generally about one meter. (3) with an electric high pressure injection pump, the water-soluble polyurethane sealing agent injected into the gap from the grouting concrete pipe joints, until the pressure does not enter until (injection rate ≤0.011 / min) closes the valve, 24 hours after the circumcision (removal ) grouting Tsui. (4) In order to achieve long-term water purposes, and then in the face of the surface layer of polyurethane waterproof construction brushing. (5) grouting is completed in a timely manner with solvent cleaning equipment and tools. (6) the construction site to maintain ventilation, avoid fire, fire is strictly prohibited. 3, high pressure grouting plugging construction method (1) of this construction method is the use of huge high-pressure perfusion machine generated, the material sent to the middle of the wall of the gap, the intermediate material is part of the center to the edges, and rapid response materials and water After hardening, the gap reached tamped foundation reinforcement, plugging seepage effect. (2) high-pressure grouting machine used in this construction method, perfusion pressure, flow, fast sealing, indeed effective blocking hydraulic method. (3) Method of perfusion-point of the perfusion was started from the central position of the structure, especially for a thickness greater than 1000px more concrete wall, it is fast and efficient sealing work using the present method. Seven, note 1, Construction Notes (1) grouting, grouting tip buried put reasonable, closely monitor pressure pipe explosion. (2) The operator should wear glasses, masks, gloves and other protective clothing to prevent slurry splashed in the eye. 2, the storage of chemical grouting materials Notes: (1) chemical grouting material should be sealed and stored in a cool dark storage room, and a personal custody, custody staff should be familiar with the material properties. Container (2) material should be equipped with a clear label affixed, and the need to classify storage. (3) a place to store chemical grouting material should be prohibited fireworks. 3, chemical grouting staff should note the following: (1) staff should wear gas masks, rubber gloves and boots and acid wear overalls. (2) if tired at work, foot blisters, hand-toe numbness, dizziness and feeling immediately from the scene to fresh air supine rest. (3) In case of a slurry or powder into your eyes or touch your skin, wash immediately with plenty of water, medical care immediately if in pain. (4) must immediately wash your hands before you eat, you should take a shower after work. (5) should be careful not to make the slurry flow into drains and rivers, so as not to pollute the water. Eight, a quality assurance measures, strictly to good quality material, the use of chemical grouting material, with product certificates, brochures and technical reports, before construction site sampling re-examination after passing through, never use inferior products. 2, strict rules and technical specifications, do not cut corners in construction. 3, adhere to inspection and acceptance system, adhere to self-inspection, mutual inspection and seizure. Nine, a security measure, grouting plugging agents auxiliary materials used in this project are flammable material library construction site and non-smoking, and equipped with a sufficient number of fire-fighting equipment. 2. All persons entering the construction site all with helmets. 3, before entering the construction site for all construction personnel safety education, so that everyone can talk about safety. Nantong company specializing in plugging the unit welcomes you