What are the specific application cases of laser leveling machines in municipal engineering?

Common faults and solutions of concrete trowel machine ●1. The engine cannot start Cause of issue: 1. The battery power is low; 2. The engine oil circuit is not smooth; 3. Starter failure; 4. The engine air filter is clogged. Solution: 1. Charge or replace the battery; 2. Check the oil line to ensure it is smooth; 3. Check the starter and replace it if necessary; 4. Clean the air filter. If you need to replace it, please contact professional technicians. ●2. Insufficient engine power Cause of issue: 1. Engine fuel system failure; 2. Improper engine valve clearance; 3. Engine air intake system failure. Solution: 1. Check the fuel system to ensure smooth fuel supply; 2. Adjust the valve clearance. If you need to replace the valve, please contact professional technicians; 3. Check the air intake system and clean or replace the air filter. ●3. The operation of the trowel machine is unstable Cause of issue: 1. The trowel blade is worn or loose; 2. The bearings of the trowel are worn or loose; 3. Improper operation of the trowel or poor road conditions. Solution: 1. Replace or tighten the blade; 2. Replace or tighten the bearings; 3. Adjust the operating method and select the appropriate operating speed and pressure according to the road conditions. ●4. The trowel machine makes a lot of noise when working Cause of issue: 1. The bearings of the trowel are damaged or loose; 2. The trowel blade is loose or worn; 3. There are foreign objects in the running parts of the trowel. Solution 1. Replace or tighten the bearing; 2. Fasten or replace the blade; 3. Check the running parts and clean up foreign objects. ●5. The smoothing effect of the trowel is not ideal Cause of issue: 1. The trowel blade is worn or improperly installed; 2. The smoothed concrete surface is uneven or blocked by hard objects; 3. Improper operation of the trowel or poor road conditions. Solution: 1. Replace or reinstall the blade; 2. Check the flatness of the concrete surface and clean up hard objects; 3. Adjust the operating method and select the appropriate operating speed and pressure according to the road conditions.

    Laser leveling machine is a kind of equipment used for large-area concrete paving and leveling. There are special operating skills in different construction environments:   – Indoor space is usually limited, and the size of laser leveling machine is relatively large. Before entering the indoor construction site, accurately measure the size of doors, passages, etc. to ensure that the machine can enter smoothly. If the passage is narrow, some parts, such as detachable scrapers, may need to be removed and installed after the machine enters the room. – During operation, pay attention to the turning radius of the machine due to limited indoor space. Plan the leveling route in advance and minimize the machine's large-scale turning movements to avoid colliding with walls, columns and other building structures. – Pay special attention to dust control during indoor construction, because dust will affect indoor air quality and subsequent decoration processes. The laser leveling machine can be equipped with an efficient dust suction device to simultaneously remove dust during the leveling process. – For situations where there are more loose debris on the ground, use a broom or industrial vacuum cleaner for preliminary cleaning before construction to reduce the situation of debris being raised during the leveling process. – Indoor floors usually have high requirements for flatness, such as warehouse floors, exhibition hall floors, etc. Before construction, carefully calibrate the laser transmitter and receiver to ensure the accuracy of the laser signal. – According to the designed slope of the indoor floor (if any), accurately set the control system parameters of the laser leveler. For example, for indoor floors with drainage requirements, the leveling operation should be carried out according to the designed drainage slope (such as 0.3% – 0.5%), and the flatness should be checked regularly during the construction process. Tools such as rulers can be used for random inspections.   – If there is an uneven original ground on the construction site, such as potholes, bumps, etc. Before construction, use equipment such as bulldozers to perform preliminary leveling on the site and deal with areas with large height differences. For small potholes, the thickness of the concrete can be appropriately increased during the construction of the laser leveler to fill them. – When the site has a certain slope, the working mode of the laser leveler should be adjusted according to the design requirements. For example, for the gentle slopes at the entrance and exit of the parking lot, they should be leveled according to the specified slope (such as no more than 7% – 10%), and the transition with the adjacent plane area should be natural and smooth. – Weather factors have a greater impact on outdoor construction. If high temperatures are encountered, the solidification speed of concrete will be accelerated. The leveling construction speed should be appropriately accelerated, and retarders can be added to the concrete to extend the working time of the concrete. At the same time, attention should be paid to providing heatstroke prevention measures for operators. – When encountering rainy weather, the laid but not completely solidified concrete should be covered with plastic film in time to prevent rain erosion. If there is water accumulation on the ground, drain it before construction, and check the water content of the ground to avoid affecting the quality of concrete due to excessive water content. – For large outdoor sites, in order to improve construction efficiency, multiple laser leveling machines can be used for collaborative operation. When dividing the construction area, the walking route of the machine should be reasonably planned to avoid mutual interference. – Arrange the supply of concrete in advance to ensure that concrete can be supplied to the construction area continuously and stably. Concrete mixer trucks can be used to unload directly near the construction area to reduce the concrete transportation time and improve the overall construction progress.   – When constructing on narrow roads or corridors, the positioning of the laser leveler must be accurately controlled. Due to the narrow space, the machine may not be able to perform regular steering operations. The concrete can be spread and leveled by adjusting the angle of the scraper by alternating forward and backward movements. – Set up warning signs on both sides of the road or corridor in advance to prevent other vehicles or personnel from interfering with the construction, and also to avoid the machine from colliding with roadside facilities. – When constructing in narrow spaces, the safety of the operator is of vital importance. The operator should wear protective equipment, such as a helmet, reflective vest, etc. And ensure that the machine's emergency brake is in good condition so that it can stop in time in case of an emergency. – As roads or corridors may have a certain amount of traffic flow, during construction, it is necessary to work closely with on-site traffic management personnel and select periods with less traffic flow for construction, or adopt temporary traffic control measures.

The concrete construction process should be familiar to everyone.  In general, the concrete construction process is the preparation (production) of concrete–concrete transportation (transport)–concrete pouring (concrete)–concrete maintenance (conservation), In this chapter, we mainly share the three parts of the concrete pouring process, which is divided into the foundation concrete pouring construction process, the wall column concrete construction process. And the beam and slab concrete construction process, so that everyone can understand the concrete parts of these important parts in detail. Pouring construction technology and process, in order to master the concrete construction rhythm in the actual concrete pouring process, so that the real-time control in the process, there are inspections and acceptances have been rectified, to ensure the concrete pouring molding effect and beauty, to achieve excellent quality! Section 1: Foundation pouring construction technology In the following chapters, we will introduce the concrete materials and the matters needing attention during transportation. This section will directly introduce the construction process of the foundation rafting. Before the official start, everyone can think about concrete construction from preparation to pouring. Complete, what preparations do we need, what conditions should be provided before pouring, what work needs to be done when pouring, what needs to be done after the pouring is completed, please remember one magic weapon, that is, the man-made method of the master key Ring", as long as the factors are sorted out in order from these factors, it will be ok, then take a look at the basic rafting construction process. First of all, let's talk about the concrete project quality control program. The basic main line of each project is to use this control program. You can optimize this program according to your own project, better prepare for the event, process control, and follow-up afterwards. Perfect, better to improve the quality of cast-in-place concrete. Section 2: Construction Deployment The foundation concrete is made of commodity ready-mixed concrete. According to the construction process and construction schedule, the concrete pouring should be arranged as much as possible during the day. If the concrete pouring amount is large, the construction can be divided into two shifts if the construction can not be completed during the day and the construction joint cannot be left. Class 12h, relevant professional leaders and construction personnel follow the class operation, responsible for inspection, and at the same time do a good job in coordination. (There is no extension of the night construction to disturb the people) Whether the foundation concrete is cast by the day pump or the ground pump is used together, and the specific conditions are determined according to the actual conditions of the project and the construction period requirements. The contents of the construction preparation will be shared in the next article.