Catago50lacrim
KesadaPrice ofThe reusable grouting pipe is used for waterproof sealing of concrete joints and can be used for multiple times of grouting.
Type of grouting pipe: disposable grouting pipe: grouting once, non reusable.
Rimusky.The grouting pipe diffuses the load on it. When the reinforced soil is loaded, the grouting pipe has a high bond with the soil, making the reinforced soil a tensile member showing better tensile performance. The tensile stress of the soil is transmitted to the grouting pipe, which can change the stress from the vertical direction to the horizontal direction, spread the load stress evenly to a large base range, enhance the overall tensile strength of the soil, greatly improving the bearing capacity of the soil.
[0004] the technical scheme adopted by the utility model to solve the above technical problems is described as follows: [0005] a fast cutting device in the hole of a underground grouting pipe, the fast cutting device in the hole mainly consists of a fixed cutting device, [0006] the tension blade device is sleeved in the cutting rotation device, Screw threads are respectively arranged on the outer surface of the cutting rotating device and the upper end of the tension blade device. The tension blade device and the cutting rotating device are connected by threads. The end of the tension blade device protruding from the cutting rotating device is provided with a tension blade nut. The fixed cutting device is mainly composed of a cutting blade and a pulley. The cutting blade and the pulley are respectively connected on both sides of the cutting rotating device through slots, A flange plate and a bearing are arranged on the outer surface of the cutting rotating device the quick cutting device in the hole is installed in the grouting pipe hole through the flange plate, and the fixed cutting device is connected with the grouting pipe flange plate through bolts.
.Inverted formwork shall be used to install stairs and side formwork of components to increase the turnover rate of formwork. According to the design size, the formwork shall be cut with plate shears, edge folding machines, profile training machines, etc. the blanking standards shall be used for rebar concealment and cross slab. The unqualified ones shall be rectified until they meet the construction technology. Concrete pouring Before concrete mixing, the moisture content of sand and stone shall be measured and the construction mix proportion shall be adjusted according to the test results.
Grouting pipe is a kind of embedded grouting pipe system, which is used for permanent sealing of construction joints, cold joints, pipe seepage joints and gaps between ground walls in concrete. It is very suitable to install grouting pipes between the joints of new and old concrete. When water penetrates into the joint, it can be sealed by injecting slurry into the PVC port set on the surface. The proper grouting time can be selected after the concrete curing. Leakage joints can also be permanently sealed in this way.
Grouting time can be arbitrarily selected; When grouting is carried out internally under the action of appropriate pressure, the grouting pipe fluid can keep filling the whole pipe evenly; The system allows grouting under relatively low pressure; The grouting pressure is 0.2-0.4mpa.
The comparison between the embedded detection and the on-site detection of the grouting pipe is yzed as follows: The embedded detection pipe: The pile diameter of 0.6 ~ 0.8m should be buried with double pipes; Three pipes shall be buried with pile diameter of 0.8 ~ 0m; Four pipes shall be buried above the pile diameter of 0m. According to the specific situation of Chifeng bridge, three pipes can be buried in the pile foundation.
In limestone area, the punching is not good, and it is difficult to sink the reinforcement cage. When the grouting pipe is deformed and blocked by unconventional means, the pipe is blocked due to the workers' carelessness and falling into small concrete blocks. The deformation and blockage of the grouting pipe bring great difficulties to the detection work, and even can not be detected. Therefore, when the grouting pipe is found blocked after the foundation pile is poured and before the inspection, effective measures should be taken to pass the pipe to ensure the smooth progress of ultrasonic inspection. Generally, there are three methods for passing the pipe: stabbing the grouting pipe with thick and long reinforcement, flushing and pigging with high-pressure water,RimuskyGrouting small conduit and advance anchor rod, and using a drill with a small drill to clean the hole.
[0018] the fixed cutting device 2 is mainly composed of a cutting blade 6 and a pulley The cutting blade 6 and the pulley 7 are respectively connected to both sides of the cutting rotary device 5 through slots. The cutting blade is shown in Fig.
where.It is required to ensure that at least one embedded reinforcement is firmly welded with the anchor ring of maolehan grouting pipe within every meter along the joint direction. The quality of XF type grouting pipe should be carefully checked. If deformation or inconsistent spacing between two steel beams is found, it should be repaired. If necessary, the steel beam spacing of maolehan grouting pipe shall also be adjusted according to the ambient temperature during installation. XF type grouting pipe device shall be slowly put into the groove, so that the center line of the joint coincides with the center line of the actual reserved joint, and the deviation shall not exceed 10mm. Meanwhile, the inner edge of the steel side beam shall be kept vertical. After the XF grouting pipe is in place, the top surface of the steel beam of the grouting pipe shall be adjusted according to the longitudinal, transverse slope and elevation to be 1-2mm lower than the adjacent asphalt concrete pavement and shall not exceed the pavement elevation.
Product specification of disposable grouting pipe: outer diameter: 12mm; Inner diameter: 8mm; Inner diameter tolerance: ± 0.3mm; Packing quantity: each roll of grouting pipe is 120m long.
The repetitive grouting pipe can be reused for many times, and the core and outer wall of the pipe need to be cleaned after each use.
2 the polymer grouting materials of the machine are mainly applied to acrylamide, polyurethane, lignin, epoxy resin, unsaturated ester, etc. Generally, and the groundwater flow rate is > 500 mm / min, the use of organic polymer chemical grouting materials can solve the engineering problems that cannot be solved by ordinary cement slurry [5].
Production department.Advantages of disposable grouting pipe: simple installation, complete set. No special installation equipment is required, and the cut-off length can be prepared on the construction site according to the actual requirements of the joint (the longest grouting pipe length is recommended not to exceed 6m) and the grouting time can be arbitrarily selected.
The grouting pipe is used as the pipe for grouting at the bottom of the pile. The test shows that the bearing capacity of the cast-in-place pile treated with the pile bottom grouting can be greatly improved At the same time, the grouting pipe can also be used as the pipe for the defect washing and grouting treatment of the accident pile. At this time, it is necessary to take measures to punch the pipe at the defect position where grouting is required. The classification of the grouting pipe can be divided into three categories according to the pipe materials: the advantages of steel pipe steel pipe are that it is easy to install, and it can be welded on the reinforcement frame by electric welding which can replace part of the reinforcement section, the parallelism and straightness can be basically maintained. At present, many large-diameter cast-in-place piles use steel as the grouting pipe. However,RimuskyLeading small conduit production, the price of steel pipe is relatively expensive: steel corrugated pipe steel corrugated pipe is a better grouting pipe material. It has the characteristics of thin pipe wall, less steel, impermeability, pressure resistance, high strength and good flexibility. It is usually used for post tensioning reserved holes in prestressed structures: when used as grouting pipe. It can be directly bound to the reinforcement framework soil, and the joint can be connected with a larger corrugated sleeve. Since the bellows is light, it is very convenient to operate, but attention should be paid to keeping its axis straight during installation.
Water pressure test water pressure test is to use the grouting pump to inject clean water into the grouting section. Its main purposes are: check the grouting stop effect of the grouting stop pipe head, especially the grouting stop plug.
Rimusky.● advantages: Simple installation, complete set; The grouting pipe can be intercepted at the construction site according to the actual required length of the joint (it is recommended that the longest grouting outlet length should not exceed 6m); No special installation equipment is required; Grouting time can be arbitrarily selected; When grouting is carried out internally under proper pressure,RimuskyGrouting flower tube, the grouting pipe fluid can keep filling the whole pipe evenly; The system allows grouting under relatively low pressure; The grouting pressure is 0.2-0.4mpa.
The grouting pipe has good air tightness, low gas permeability, strong sealing and no leakage.
However, its setting time is not stable enough, the controllable range is small, the strength of the condensate is low, and the stability is poor. It is mainly used in temporary or semi permanent projects [4].