CN-122013808-A - Construction method for precisely leveling foundation surface of cast-in-situ damper

CN122013808ACN 122013808 ACN122013808 ACN 122013808ACN-122013808-A

Abstract

The invention relates to a construction method for precisely leveling a foundation surface of a cast-in-situ damper, which comprises the following steps of injecting liquid into an annular drainage ditch surrounding the periphery of the foundation surface of a concrete to establish a still water reference surface, detecting the foundation surface of the concrete according to the still water reference surface, marking a convex part higher than the still water reference surface on the foundation surface of the concrete, polishing the convex part, circularly detecting and polishing the foundation surface of the concrete until reaching standards, and realizing ultra-high precision precisely leveling of the foundation surface of a large-scale forging damper without using large machinery in the construction process, thereby saving construction cost and improving construction efficiency and construction quality.

Inventors

LI HUAXING
HUANG JIANJUN
GUO LINTONG
MA RUJIAN
MA DONGHUA
LIU ZHIYUAN

Assignees

二十冶集团(上海)冶金工业有限公司
中国二十冶集团有限公司

Dates

Publication Date: 20260512
Application Date: 20260327

Claims (10)

1. A construction method for precisely leveling a foundation surface of a cast-in-situ damper is characterized by comprising the following steps: Step one, injecting liquid into an annular drainage ditch surrounding the periphery of a concrete foundation surface to establish a still water reference surface; Step two, detecting the concrete foundation surface according to the still water reference surface, and marking a convex part higher than the still water reference surface on the concrete foundation surface; step three polishing the convex part; and fourthly, carrying out cyclic detection and polishing on the concrete foundation surface until reaching the standard.
2. The construction method for accurately leveling the foundation surface of a cast-in-situ damper according to claim 1, wherein the construction method comprises the steps of: Injecting liquid into the annular drainage ditch surrounding the periphery of the concrete foundation surface until the liquid level reaches the elevation of a preset foundation finishing surface; After the injection is completed, standing the liquid to enable the liquid level in the annular drainage ditch to form a static horizontal liquid level, wherein the horizontal liquid level is used as a static water reference surface.
3. The method for constructing a fine leveling of a foundation surface of a cast-in-situ damper according to claim 1, wherein the step two of detecting the concrete foundation surface based on the still water reference surface and marking a convex portion higher than the still water reference surface on the concrete foundation surface comprises: And detecting the height difference between the concrete foundation surface and the still water reference surface by using a wetting line, and marking the detected raised part of the concrete foundation surface higher than the still water reference surface.
4. The method for precisely leveling the foundation surface of a cast-in-situ damper according to claim 3, wherein the concrete foundation surface is marked by marking the area of the raised portion with a marker pen and marking the height of the raised portion.
5. The construction method for precisely leveling the foundation surface of the cast-in-situ damper according to claim 1, wherein the polishing of the convex part comprises the following steps: And (3) layering and progressive polishing is carried out on the raised parts marked on the concrete foundation surface by using a polisher, wherein the current elevation of a polishing area is checked by taking the still water reference surface as a reference in the polishing process repeatedly, and the polishing sequence is sequentially advanced from one end of the concrete foundation surface to the other end of the concrete foundation surface.
6. The construction method for accurately leveling the foundation surface of the cast-in-situ damper according to claim 1, wherein the construction method is characterized by comprising the following steps of circularly detecting and polishing the concrete foundation surface until reaching the standard, and comprises the following steps: After finishing one round of polishing of the concrete foundation surface, re-injecting liquid into the annular drainage ditch to the elevation of a preset foundation finishing surface, and standing to form a reference water surface; And (3) repeating the step (II) to perform full-range detection on the concrete foundation surface, and repeating the step (III) to polish if the protruding points exist, so that the cycle is performed until the height differences between all the measuring points of the concrete foundation surface and the reference water surface meet the preset error requirement.
7. The construction method for accurately leveling the foundation surface of the cast-in-situ damper according to claim 6, wherein in the fourth step, the concrete foundation surface is subjected to cycle detection and polishing until reaching the standard, and the construction method further comprises the following steps: When the height difference between all measuring points of the concrete foundation surface and the reference water surface is within an allowable error and the surface of the concrete foundation surface has no abrupt steps, the liquid in the annular drainage ditch is discharged through the water collecting well communicated with the annular drainage ditch, floating ash and fragments of the concrete foundation surface are cleaned, and the concrete foundation surface is comprehensively measured and rechecked and finished product protection is finished.
8. The construction method for precisely leveling the foundation surface of the cast-in-situ damper according to claim 1, wherein before the step one, the construction method further comprises the steps of: The construction environment meets the external interference conditions of no wind, no strong air flow and no vibration of large-scale equipment; And checking and cleaning annular drainage ditches surrounding the periphery of the concrete foundation surface and a water collecting well communicated with the annular drainage ditches, so as to ensure that no sundries exist in the annular drainage ditches and the water collecting well and leakage points are unblocked.
9. The method for precisely leveling the foundation surface of a cast-in-situ damper according to claim 5, wherein the polishing machine is equipped with a diamond grinding disc.
10. The construction method for precisely leveling the foundation surface of the cast-in-situ damper according to claim 1, wherein the liquid is clear water.

Description

Construction method for precisely leveling foundation surface of cast-in-situ damper Technical Field The invention relates to the technical field of constructional engineering, in particular to a construction method for precisely leveling a foundation surface of a cast-in-situ damper. Background The large-scale forging damping foundation has extremely strict requirements on surface flatness, and usually the precision standard of +/-1 mm/1m is required to be achieved, but the requirements are difficult to meet in the traditional cast-in-place concrete structure construction, and the installation precision and the use effect of the damper are seriously affected. At present, for the ground construction with strict flatness requirements, a laser leveling machine is generally adopted for operation, but the laser leveling machine is only suitable for the integral leveling of large-area ground, has extremely high local precision requirements for large-scale forging shock absorption foundations and possibly does not need a scene of large-area integral operation, has insufficient use flexibility, and can increase the construction cost due to large-scale mechanical investment, so that the problem that the flatness is not up to standard due to local protrusion after the cast-in-situ concrete foundation is coarsely leveled can not be solved pertinently. Therefore, a construction method capable of accurately, efficiently and inexpensively solving the problem of accurate leveling of a large-scale forging damping foundation is needed. Disclosure of Invention Aiming at the defects existing in the prior art, the invention aims to provide the construction method for precisely leveling the foundation surface of the cast-in-situ damper, which has the advantages of realizing the ultra-high precision precisely leveling of the concrete foundation surface, reducing the use of large machinery and saving the construction cost. The invention aims at realizing the technical scheme that the construction method for the foundation surface finish leveling of the cast-in-situ damper comprises the following steps: Step one, injecting liquid into an annular drainage ditch surrounding the periphery of a concrete foundation surface to establish a still water reference surface; Step two, detecting the concrete foundation surface according to the still water reference surface, and marking a convex part higher than the still water reference surface on the concrete foundation surface; step three polishing the convex part; and fourthly, carrying out cyclic detection and polishing on the concrete foundation surface until reaching the standard. The construction method for the precise leveling of the foundation surface of the cast-in-situ damper provided by the invention comprises the following steps of: Injecting liquid into the annular drainage ditch surrounding the periphery of the concrete foundation surface until the liquid level reaches the elevation of a preset foundation finishing surface; After the injection is completed, standing the liquid to enable the liquid level in the annular drainage ditch to form a static horizontal liquid level, wherein the horizontal liquid level is used as a static water reference surface. The second step of the construction method for precisely leveling the foundation surface of the cast-in-situ damper provided by the invention is to detect the concrete foundation surface according to the still water reference surface, mark a convex part higher than the still water reference surface on the concrete foundation surface, and comprises the following steps: And detecting the height difference between the concrete foundation surface and the still water reference surface by using a wetting line, and marking the detected raised part of the concrete foundation surface higher than the still water reference surface. Preferably, the construction method for precisely leveling the foundation surface of the cast-in-situ damper provided by the invention adopts a marker pen to circle the range of the convex part on the concrete foundation surface and marks the height value of the convex part. Preferably, the construction method for precisely leveling the foundation surface of the cast-in-situ damper provided by the invention comprises the following steps: And (3) layering and progressive polishing is carried out on the raised parts marked on the concrete foundation surface by using a polisher, wherein the current elevation of a polishing area is checked by taking the still water reference surface as a reference in the polishing process repeatedly, and the polishing sequence is sequentially advanced from one end of the concrete foundation surface to the other end of the concrete foundation surface. The construction method for precisely leveling the foundation surface of the cast-in-situ damper provided by the invention comprises the following steps of circularly detecting and polishing the concrete foundation surface until reachin