Cement drainage pipes are often used in municipal works in our city. They are often used as drainage pipes for rainwater and domestic sewage in the city. If there is no cement pipe, the road will be filled with rainwater and domestic sewage falling from the sky. We will live in a sea of water without a foothold, so they play a very important role in urban construction, There is no substitute. When installing the cement pipe, we must carefully construct according to the specific process and planning.
Precautions for installation and connection of cement pipe
1. Within the specified cooling time, the newly welded joint can also be corrected, and a small amount of rotation is allowed. However, after the cooling time, forced correction is strictly prohibited. Note: The connected pipes and pipe fittings shall not be inclined. They shall be basically horizontal and vertical to avoid incorrect angle when installing the faucet.
2. It is forbidden to let the newly processed joint bear external force within the specified cooling time.
3. When PP-R pipe fittings with metal threads are used, the white raw material tape must be firmly sealed to avoid water leakage from the threads.
4. When overtightening PP-R pipe fittings with metal threads, the pipe fittings may be cracked, resulting in water leakage. Pay attention to the appropriate force.
5. The pipe clamp to be used shall not be fixed with hook nails to prevent damage to the water pipe and reduce its service life. The distance between cold water pipe clamps is 50 ± in general, and the distance between hot water pipe clamps is 35 ±. If the pipe clamps are not in place, the water pipes will shake and produce noise.
6. The water pipe shall be horizontally flat and vertically straight (on the premise that the grooving is horizontally flat and vertically straight) to avoid hard pulling or twisting the water pipe, which will cause the outlet not parallel to the wall, affecting the appearance and installation of the mixing tap.
7. When the waterway is reconstructed, the reserved cold and hot water for future installation of electric water heaters, water taps, etc. shall be supplied with water.
Installation and connection method of Jiaxing cement pipes: cement pipes, also known as cement pressure pipes and reinforced concrete pipes, can be used as sewers in urban construction, sewage drainage, flood control and drainage, as well as water supply pipes and farm motor wells used in some factories and mines. Generally, it is divided into: plain end reinforced concrete cement pipe, flexible rebated reinforced concrete cement pipe, socket reinforced concrete cement pipe, F-shaped steel socket cement pipe, plain end ring joint cement pipe, rebated cement pipe, etc. There are many kinds of cement pipes. Now let's introduce the installation and connection specifications and precautions of cement pipes, represented by reinforced concrete drainage pipes for rainwater and sewage discharge on municipal roads.
1. Centerline setting of pipeline: before construction, the starting point, end point, plane break point, longitudinal break point and straight line control center pile of the centerline can be measured on the site according to the center line control point given in the design, and the direction control pile can be set at the appropriate position outside the groove of the starting point and end plane break point, and the pile number can be determined through measurement.
2. Establish temporary bench marks: temporary bench marks are often required for pipeline works, which should be set at a stable place that is not easy to be collided, and the spacing should not be more than 30 meters. The closure error of temporary benchmark shall meet the specified standards.
3. Trench excavation is mainly conducted by excavator, supplemented by manual bottom cleaning, and the connection pipe and branch pipe of rainwater hopper are excavated manually. During excavation, pay attention to the change of soil quality, and support the sections with signs of collapse.
Connection mode and precautions of cement pipe
4. Excavator shall excavate to an elevation of about 10cm at the bottom of the trench. The soil at the bottom of the reserved trench shall not be excavated, and then it shall be removed manually to trim the trench bottom. Manually clean the trench, carefully check whether the soil at the bottom of the trench is disturbed, and if there is any, handle it.
5. On both sides of the trench and 1m above the bottom of the trench, elevation piles shall be set symmetrically, and elevation nails of equal height shall be nailed on them. The center line of the pipe channel and the elevation of the elevation pile shall be re measured before the bottom of the trench is reached and the pouring is leveled.
6. The height of soil stacking on one side of the trench edge shall not be more than 2m, and the distance from the trench edge shall not be less than 1m. The protection of underground pipelines for trench construction shall be disclosed to the relevant departments first to clarify the basic location of underground facilities. If necessary, sample holes shall be excavated first to find out the exact location, which is conducive to construction, and to ensure the safety of various embedded pipelines. During construction, support and protection measures shall be taken for exposed pipelines.
7. After the installation and connection construction is completed, water test must be carried out, carefully observe for a period of time to check whether there is water seepage and leakage, and timely repair the problems found.
Pinghu Huafeng Cement Products Factory is a large enterprise engaged in cement products for a long time Cement brick The manufacturer specializes in producing cement pipes, U-grooves, square piles, cement piles, road bricks Cement grass planting brick 、 Cement tile Concrete square piles, solid square piles, cement sewer pipes, concrete cement pipes, curbstones, curbstones, and other cement products, welcome new and old customers to consult and negotiate! //www.jxhfslzp.com Service hotline: 130-9562-2833 (Manager Yu)
