Lanzhou observation pole observation pile L-shaped observation pole direct buried observation pile with excellent sales price

Description :

　　The burial of settlement observation targets is a guarantee for the smooth progress of engineering construction, so its burial should be careful. The burial of observation targets also varies depending on the environment. Different environments have different burial methods. Below, the editor will carefully introduce them to you:

　　1. For framed buildings, settlement observation markers are generally buried in the upper part of the pile foundation.

　　2. For some newly constructed buildings, observation markers need to be buried at the junction of the new and old buildings.

　　3. Buildings with load-bearing brick walls should have observation markers set up at regular intervals.

　　4. Buildings containing liquids need to be buried in corresponding locations.

　　Specific testing procedures and steps

　　1. Establish a level control network

　　Based on the characteristics of the project layout and the environmental conditions on site, a measurement and construction plan shall be formulated. The leveling control points (or urban precision traverse points) provided by the construction unit shall establish a leveling control network according to the requirements of the project's measurement and construction plan and network layout principles. Requirement: (1) Generally, there should be at least 3 leveling points arranged around high-rise buildings, with a spacing of no more than 100 meters; (2) At least 2 leveling points should be visible from the rearview of any instrument installed in the field area, and each leveling point in the field area should form a closed shape for closed calibration; (3) Each leveling point should be set outside the excavation, ground settlement, and vibration zone of the building. The burial depth of the leveling point should meet the requirements of second-class leveling measurement (greater than 1.5 meters). Based on the characteristics of the project, a reasonable leveling control network should be established, and the elevation of each leveling point should be calculated by joint measurement with the benchmark point and adjustment.

　　2. Establish a fixed observation route

　　Determine the location of settlement observation points based on the burial requirements of settlement observation points or the settlement observation point layout diagram designed by the site level control network. Establish a fixed observation route between the control point and the settlement observation point, and mark the instrument stations and turning points with markers to ensure that all observations follow a unified route.

　　If the situation of prevention and control remains severe after the Spring Festival, and steel companies in the region cannot quickly resume production, the expectation of market supply contraction will be further strengthened. It is not ruled out that market capital may engage in misplaced speculation before the reality of the industry, thereby driving resonance and upward momentum. The steel market may have a "good start" after the Spring Festival. However, in the pattern of "weak supply and demand", there is great uncertainty about whether the market can continue to rise, and it cannot be ruled out that steel prices may fall due to the obstruction of high-level transactions. If the region can be quickly and effectively controlled, the release of supply side resources will gradually return to normal after the Spring Festival. At the same time, the construction progress of downstream projects will also accelerate, and the market will enter a fundamental game of supply and demand. Considering that the market is in the traditional off-season of demand in February, the supply side is likely to dominate the market trend, and it cannot be ruled out that steel prices may experience a temporary increase driven by strong demand expectations.

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