CN-122014026-A - Migration protection method for rock-soil immovable cultural relics

CN122014026ACN 122014026 ACN122014026 ACN 122014026ACN-122014026-A

Abstract

The invention relates to the technical field of cultural relics protection, and discloses a migration protection method of a rock-soil immovable cultural relic, which comprises the following steps of S1, reinforcing a new site foundation; S2, in-situ cleaning and preprocessing, S3, high-precision data acquisition, S4, performing island excavation on the periphery of an original site to enable the site to be migrated to form independent islands, S5, performing block cutting on the islands, performing box reinforcement on the block-divided site body to form a steel frame sleeve box whole, S6, performing bottom supporting structure construction and hanging beam installation on the bottom of the steel frame sleeve box to enable the site body to be separated from a lower raw soil layer, and forming a hanging stress system. The invention solves the problem that loose heterogeneous earthen sites are easy to be broken in migration, avoids hydraulically softening and dust blocking pores by anhydrous cutting and synchronous dust collection, and ensures the structural integrity of the sites in the whole processes of separation, reinforcement and hoisting by combining a steel-slurry-soil composite bottom supporting layer formed by bottom skip construction, thereby remarkably improving the integrity of the body.

Inventors

HE GUANGFENG
ZHAI LIXIN
YAN HAN
WANG ROU
CHENG JIANYU
DENG JUN
WANG CHAORAN
WANG XUGANG

Assignees

辽宁有色勘察研究院有限责任公司

Dates

Publication Date: 20260512
Application Date: 20260203

Claims (10)

1. The migration protection method for the rock-soil immovable cultural relics is characterized by comprising the following steps of: S1, reinforcing a new site foundation; S2, cleaning and preprocessing in situ; S3, high-precision data acquisition; s4, performing island excavation on the periphery of the original site to enable the site to be migrated to form an independent island; S5, cutting the island in blocks, and reinforcing the block-divided site body to form a steel frame sleeve box whole; s6, carrying out bottom supporting structure construction and hanging beam installation on the bottom of the steel frame sleeve box, so that the site body is separated from the lower raw soil layer, and a hanging stress system is formed; S7, hoisting and transporting the site block through the hanging beam; S8, transporting the site block to a new site and connecting the site block in place; S9, backfilling protection and display fusion are carried out.
2. The method according to claim 1, wherein the step S1 comprises the steps of presetting a joist groove in a new site according to an original embedded elevation of the site, embedding an I-steel positioning piece in the joist groove according to a planned position, and controlling the embedded positioning error to be less than or equal to 2mm.
3. The method according to claim 1, wherein the step S2 comprises the steps of cleaning the surface of the site with a neutral chemical agent with a pH value of 7-8, and carrying out temporary support on the unstable soil body around the site by adopting a phi 50mm steel pipe scaffold and a steel wire mesh.
4. The method according to claim 1, wherein the step S3 comprises: acquiring an integral three-dimensional model of the site by adopting a three-dimensional scanner; performing oblique photography by adopting an unmanned aerial vehicle, and marking key coordinates of the site by combining with an RTK positioning technology; Shooting the site detail texture by adopting a fixed-focus camera; and establishing a digital file containing the three-dimensional model, the plane coordinates and the detail image.
5. The method of claim 1, wherein step S4 comprises performing the islanding excavation along a site that is 0.2-1.0 meters outside of the site boundary using a combination of mechanical preliminary excavation and manual fine finishing.
6. The method according to claim 1, wherein the step S5 comprises: S5a, carrying out anhydrous cutting and blocking on the island by adopting a diamond rope saw, arranging directional wheels on two sides of a cutting line to guide the sawing rope, and synchronously collecting cutting dust by using an industrial dust collector, wherein the blocking size is determined according to the capacity of hoisting equipment and the transportation limit of urban roads, and the blocking width is not more than 3m in the conventional transportation; S5b, welding channel steel to form a box frame, sequentially filling wood boards, pouring gypsum slurry and paving a non-woven fabric isolation layer from inside to outside in a gap between the box frame and the site body, and combining the site body and the steel frame box into a compact whole after the gypsum slurry is solidified.
7. The method according to claim 1, wherein the step S6 comprises: S6a, horizontally carrying out opposite drawing from the bottom of the site by adopting a Luoyang shovel, and using a laser level instrument to calibrate the direction, wherein the horizontal error is less than or equal to 1mm; S6b, calculating and selecting I-steel according to the weight of the site block, building a groined hanging beam below the supporting base structure, and jacking the I-steel to be tightly adhered to the supporting base structure by adopting a numerical control synchronous jack and welding, wherein the grade of a welding seam is not lower than one grade.
8. The method according to claim 1, wherein the steps S7 and S8 comprise: In the process of hoisting and transporting, installing a tension sensor at a hoisting point of a hoisting beam to monitor stress of each hoisting point in real time, and installing a posture detection sensor at the side wall of the box casing to control the inclination angle to be less than or equal to 3 degrees; When in-situ connection, the four-corner coordinates of the site block are monitored in real time by adopting a total station to control the in-situ error to be less than or equal to 2mm, and the site block is hoisted into a joist groove preset in a new site, so that the I-steel hanging beam is accurately butted with the pre-buried locating piece, and then fine stone concrete is poured to form an integral foundation.
9. The method according to claim 1, wherein the step S9 comprises removing the temporary reinforcement member and returning the site to the original location, collecting data from the new location area by using the three-dimensional scanning device to create a new location digitized file after migration, and performing a display design based on the digitized file.
10. The method according to claim 1, wherein the method further comprises the step of cement-water glass double-slurry grouting reinforcement of the island side wall and the bottom after the step S4 for the site of the sandy soil stratum, and the step of laying geotextile on the island side wall and performing water spraying maintenance to form a moisture-preserving layer after the step S4 for the site of the expansive soil stratum.

Description

Migration protection method for rock-soil immovable cultural relics Technical Field The invention relates to the technical field of cultural relic protection, in particular to a migration protection method for a rock-soil immovable cultural relic. Background At present, for the migration protection of the immovable cultural relics, some technical schemes are put into practice, but each technical scheme has certain limitations: 1. The construction method for large-scale ramming, dam body type site translation technology comprises the step of arranging closely arranged steel pipe glides and steel plate trays at the bottom of a site, and horizontally translating by using a traction device, wherein the engineering site large block segmentation underpinning translation protection construction method is disclosed in a comparison document CN 113846869B. The method is suitable for rammed earth sites with certain integral strength, but has difficult construction for underpinning the structure for the impurity filled earth sites with loose and heterogeneous structure, and focuses on horizontal movement, and has insufficient applicability for scenes needing to be hoisted and transported in blocks to adapt to urban road restriction. 2. The construction method for the rapid integral migration of the large-scale relic sculpture is disclosed in a comparison document CN112192984A, and is characterized in that a construction base and an anti-overturning frame are adopted for integral hoisting. The method has higher efficiency, is mainly suitable for sculpture-like cultural relics with independent foundations and relatively firm structures, and lacks effective cutting and bottom underpinning technology for earthen sites which are tightly combined with a primary soil layer and need to be subjected to bottom cutting separation. 3. Aiming at the cutting box technology of the stone or masonry structure site, as disclosed in a comparison document CN117248759A, the ancient sea pool site cutting protection migration process method adopts a rope saw to cut and is matched with a steel box to carry out integral extraction and lifting. The cutting and box sleeving reinforcement thought of the method has reference significance, but the object is Dan Tang, when the cutting and reinforcement process is directly applied to loose soil sites, the cutting surface is easy to break and the body disintegrates, and the bottom precise separation and rigid underpinning technology is not particularly involved. 4. The integral packing translation technology for the underground structure is a construction method for integrally separating, translating and protecting the ancient tomb room, as disclosed in a comparison document CN113338662A, and is implemented by adopting peripheral packing reinforcement and a track for pushing and translating. The method is suitable for a tomb room structure with an internal space, but for solid earthen sites, the packing body is huge, the size and weight limit of urban road transportation are difficult to meet, and the requirement of long-distance pushing translation on site conditions is high, so that the cost is huge. In summary, existing migration protection techniques focus on movable cultural relics, stone components, or specific types of sites with better integrity. For a large number of newly discovered rock-soil sites in loose heterogeneous strata such as miscellaneous fill, plain fill and the like, the following defects generally exist in the prior art: (1) The traditional mechanical excavation or cutting is easy to cause the loose site body to crack and collapse, and the historical information is lost. (2) The reliable rigid reinforcement and support system is lacking, a stable and uniformly stressed separation layer and a hoisting bearing system are difficult to form at the bottom of a loose site, and the risk of the migration process is high. (3) The process control is not refined, namely in the key links of hoisting, transportation, positioning and the like, the real-time high-precision monitoring and regulating means for stress, gesture and positioning are lacking, and the safety cannot be quantitatively ensured. (4) The technical system is not strong, a full-flow integrated solution from data retention, scientific blocking, rigid reinforcement, precise underpinning to intelligent hoisting and precise positioning cannot be formed, and multiple constraints of 'construction period urgency', 'strict protection' and 'feasible transportation' are difficult to be met at the same time. Therefore, development of a migration protection method specially aiming at rock-soil immovable cultural relics, and particularly suitable for loose stratum sites is needed. The method can realize fine cutting and blocking, rigid integral reinforcement, stable underpinning of the bottom, intelligent process monitoring and accurate in-place connection, so that a set of efficient, reliable and complete technical scheme is provided f