Rock core storage device for rock and soil construction
By designing the core preserver's cylindrical shell, curved transparent window, and connecting seat, and using an air-filling method to maintain the confining pressure of the core, the problem of the core being susceptible to air and water vapor was solved, achieving high-quality preservation over a long period of time.
Patent Information
- Application Number
- CN202520158042.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-01-23
AI Technical Summary
Existing core storage devices cannot effectively isolate cores from the external environment, making cores susceptible to weathering and disintegration due to air and water vapor. Furthermore, they cannot maintain the confining pressure and structural morphology of the cores, affecting the accuracy of detection and research value.
A core preserver was designed, comprising a cylindrical shell, an arc-shaped transparent window, an elastic sleeve, and a connecting seat. The elastic sleeve is pressurized by inflation to maintain the confining pressure and structural morphology of the core, creating a containment cavity isolated from the external environment to prevent contact with air and water vapor.
It effectively blocks the influence of air and water vapor, maintains the stability and original shape of the core, extends the preservation time of the core, and ensures the accuracy of detection and research value.
Smart Images
Figure CN223804080U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a core preservation container technical field especially relates to a core preserver for geotechnical construction. BACKGROUND
[0002] Before engineering construction, the construction party usually needs to carry out geological survey on the region of engineering construction, so as to design the construction scheme with high reliability and safety. Among various geological exploration means, ground drilling is the most direct way to understand and collect underground cores, which can be used to analyze underground geological structure, building conditions, foundation scheme, etc. A large number of core samples are produced in the drilling process. The core is a cylindrical rock sample taken from the hole according to the needs of geological exploration work or engineering, using annular core drill bit and other coring tools. The core is an important physical geological data for studying and understanding the underground geology and mineral resources, and is the most intuitive and practical data for understanding the underground stratum and ore-bearing characteristics. Its uniqueness lies in its originality, uniqueness and non-renewability, which determines its irreplaceable scientific research value and historical significance. If the core is exposed to the natural environment for a long time, it is often affected by air oxidation, deliquescence and other factors, which can easily destroy the material composition of the core, and can also affect its fine structure and morphological characteristics, which can greatly reduce the scientific research value and application prospect of the core, causing irreversible damage to the material composition, fine structure and morphological characteristics of the core sample, and seriously affecting its scientific research value and application prospect.
[0003] At present, the core is usually stored in an open box body made of plastic and wood. However, the traditional core storage device cannot separate the core from the external environment, which leads to the damage of the core due to its exposure to air and water vapor, resulting in weathering, disintegration and other damages, which affects the detection accuracy and research value of the core. In addition, the existing core storage device cannot adapt to the pressure of the core sample, and cannot maintain the confining pressure state and structure of the core sample in the stratum, which leads to the loose, deformation or fragmentation of the core with the extension of storage time, and is not easy to maintain the original shape of the core, which is not conducive to the long-term preservation of the core, and has the problem of poor durability. SUMMARY
[0004] The utility model aims at providing a kind of core preserver for geotechnical construction, which can maintain the state and structure of the core while improving the isolation of the core and the outside world, so that the state and form of the core can be effectively maintained for a long time, to solve the existing core box directly exposes core in air, it is extremely vulnerable to air and water vapor and appears weathering, disintegration and other damage, resulting in the destruction of core and affecting its detection accuracy and research value, and the existing core storage device cannot adaptively pressurize the core sample, cannot maintain the confining pressure state and structure form of the core sample in the formation, resulting in the core being prone to loose, deformation or fragmentation and other state changes with the extension of storage time, not easy to maintain the original shape of core, not conducive to long-term preservation of core, there is the problem of poor durability.
[0005] The utility model adopts the technical scheme: a kind of core preserver for geotechnical construction, including column shell, arc surface transparent window board is embedded in the side surface of the column shell, and the shell inner side wall of the column shell is also connected with the elastic mold sleeve that can be cooperated with the arc surface transparent window board and can be built into the cylindrical accommodating cavity capable of accommodating core, the butt ring shell that is simultaneously connected with the plate body end side of the arc surface transparent window board is arranged in the opening end of the elastic mold sleeve;The connecting seat capable of being cooperated with the closed shell cavity is detachably connected at the port of the column shell, so that the elastic mold sleeve is pressurized by the way of inflating closed shell cavity, to maintain the confining pressure state of the core in cylindrical accommodating cavity, and the connecting seat can also simultaneously block the opening of the butt ring shell.
[0006] According to a preferred embodiment, the connecting seat includes a seat body, a blocking plug, an elastic abutting column and a connecting piece, wherein the seat body detachably blocks the port of the column shell, and the connecting piece capable of defining the relative position between the seat body and the column shell is arranged on the outer side surface of the seat body in a ring direction; the surface of the seat body facing the inner cavity of the column shell is connected with the blocking plug capable of blocking the opening of the butt ring shell, and the elastic abutting column capable of being inserted into the butt ring shell and capable of elastically abutting on the surface of the core is inserted into the blocking plug.
[0007] According to a preferred embodiment, a gas guide pipe capable of communicating with the inner cavity of the column shell is provided on the seat body, and the end and side surface of the pipe body extending to the outside of the seat body are respectively connected with a gas nozzle and a screw cap air release valve.
[0008] According to a preferred embodiment, the blocking plug includes a plug body embedded in the first installation groove of the seat body and an abutting circular ring body at the end of the plug body and adaptively abutting on the inclined inner wall surface of the circular through hole, and the first through gas hole is formed on the side wall surface of the plug body in the inner cavity of the column shell.
[0009] According to a preferred embodiment, the column body of the elastic abutting column is movably inserted into the plug body, and the insertion front end of the column body is further rotatably connected with an adjusting screw capable of limiting the depth of the insertion of the column body into the plug body, wherein the adjusting screw penetrates through the plug body and is threaded on the seat body.
[0010] According to a preferred embodiment, the end of the column body into which the butt joint ring shell is inserted is provided with an inflation groove, and the opening surface of the inflation groove is provided with an elastic mold capable of being inflated and expanded to effectively abut against the end surface of the core, and the outer side wall of the column body is further provided with a second penetrating air guide hole capable of being communicated with the first penetrating air guide hole.
[0011] According to a preferred embodiment, the connecting lug plates of the connecting member are circumferentially and spacedly arranged on the outer side surface of the seat body, and a connecting screw is inserted through the connecting lug plates, so that the connecting screw penetrating through the connecting lug plates limits the connection state between the seat body and the column shell in a manner of being connected with the threaded hole connecting plate.
[0012] According to a preferred embodiment, a circular truncated cone through hole is arranged in the shell of the butt joint ring shell, and a second sealing gasket is embedded on the inclined inner wall surface of the circular truncated cone through hole.
[0013] According to a preferred embodiment, the side surface of the column shell on which the arc-shaped transparent window plate is mounted is detachably buckled with a cover capable of shielding the arc-shaped transparent window plate.
[0014] According to a preferred embodiment, the outer side surface of the column shell close to the port thereof is further circumferentially and spacedly provided with a threaded hole connecting plate corresponding to the connecting lug plate.
[0015] The beneficial effects of the utility model are as follows:
[0016] The arc-shaped transparent window plate, the elastic mold sleeve, the butt joint ring shell and the connecting seat arranged in the application can construct a cylindrical containing cavity separated from the external environment, so that the core stored in the cavity can maintain a gap-free and wrapped state for a long time, thereby ensuring the stability of the structure and effectively preventing the contact between air and the core, so that the core will not be affected by air and water vapor to cause weathering and disintegration, and the storage time of the core is greatly improved.
[0017] The column shell body can be matched with the connecting seat to construct a closed shell cavity, so that the expansion force of the gas filled in the closed shell cavity can effectively extrude the rock core stored in the elastic mold set 3, so that the rock core can have a confining pressure state and a structural form similar to the formation environment in the storage state, to ensure the stability and durability of the rock core structure and state, effectively reduce the defects of the rock core such as loosening, deformation or fragmentation caused by long-term storage, and effectively maintain the original shape of the rock core, facilitating long-term high-quality preservation of the rock core. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 is a preferred structure schematic view of a rock core preserver for geotechnical construction provided by the present application;
[0019] Figure 2 is a preferred cross-sectional schematic view of A of a rock core preserver for geotechnical construction provided by the present application;
[0020] Figure 3 is a preferred partial axial cross-sectional schematic view of a rock core preserver for geotechnical construction provided by the present application;
[0021] Figure 4 is a preferred local enlarged structure schematic view of a connecting seat of a rock core preserver for geotechnical construction provided by the present application.
[0022] LIST OF REFERENCE NUMERALS
[0023] 1: column shell body; 2: arc-surface transparent window plate; 3: elastic mold set; 4: butt joint ring shell; 5: connecting seat; 11: cover shell; 12: screw hole connecting plate; 13: seat support; 31: tight pressing strip; 41: circular table through hole; 42: second sealing washer; 51: seat body; 52: plugging plug; 53: elastic abutting column; 54: connecting piece; 511: third sealing washer; 512: first installation groove; 513: gas guide pipe; 514: gas nozzle; 515: screw cap deflation valve; 521: plug body; 522: abutting circular table ring body; 5211: first through gas guide hole; 531: column body; 532: adjusting screw; 533: inflation groove; 534: elastic mold body; 5311: second through gas guide hole; 541: connecting lug plate; 542: connecting screw. DETAILED DESCRIPTION
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the present application will be briefly introduced below in combination with the drawings and the descriptions of the embodiments or the prior art. Obviously, the following description of the drawings structure is only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor.
[0025] The application will be described in detail below with reference to the drawings. Embodiment
[0026] The application provides a core preserver for geotechnical construction, which comprises a column shell 1, an arc transparent window plate 2, an elastic mold sleeve 3, a butt joint ring shell 4 and a connecting seat 5.
[0027] According to Figures 1-4 In the specific embodiment shown, the column shell 1 made of hard material or high-hardness metal material has a rigid outer protective shell wall capable of effectively preventing external impact from directly damaging the core. The arc transparent window plate 2 is embedded on the side surface of the column shell 1. The elastic mold sleeve 3 capable of cooperating with the arc transparent window plate 2 to build a cylindrical accommodating cavity capable of accommodating the core is also sealingly connected to the inner side wall of the shell of the column shell 1 embedded with the arc transparent window plate 2. The butt joint ring shell 4 is arranged at the opening end of the elastic mold sleeve 3 and is connected with the end side of the plate body of the arc transparent window plate 2. The connecting seat 5 capable of cooperating with the column shell 1 to form a closed shell cavity is detachably connected to the port of the column shell 1, so that the elastic mold sleeve 3 is pressurized by inflating the closed shell cavity, to maintain the confining pressure state of the core in the cylindrical accommodating cavity, and the connecting seat 5 can also simultaneously block the opening of the butt joint ring shell 4. The pressurizing pump capable of pressurizing the closed shell cavity is also detachably connected to the connecting seat 5. The column shell 1 provided in the application can cooperate with the connecting seat 5 to build the closed shell cavity, so that the inflation force of the gas can effectively extrude the core stored in the elastic mold sleeve 3 by inflating the closed shell cavity with pressurized gas, so that the core can have a confining pressure state and structure similar to the formation environment in the storage state, to ensure the stability and durability of the core structure and state, effectively reduce the defects such as core loosening, deformation or fragmentation caused by long-term storage, effectively maintain the original shape of the core, and facilitate long-term high-quality preservation of the core. The arc transparent window plate 2, the elastic mold sleeve 3, the butt joint ring shell 4 and the connecting seat 5 provided in the application can build a cylindrical accommodating cavity separated from the external environment, so that the core stored in the cavity can be kept in a gapless and wrapped state for a long time, to ensure the stability of the structure, and can effectively block the contact between air and the core, so that the core will not be affected by air and water vapor to cause weathering and disintegration, greatly improving the preservation time of the core.
[0028] Preferably, the side of the column shell 1 mounting the arc-shaped transparent window plate 2 is detachably buckled with a cover 11 capable of shielding the arc-shaped transparent window plate 2. The cover 11 is capable of shielding the arc-shaped transparent window plate 2 to form a light-shielded dark cavity during non-observation period and transportation. Preferably, the opening surface of the cover 11 is embedded with a first sealing washer capable of filling the gap between the cover 11 and the column shell 1. Further preferably, one side end of the cover 11 is provided with an extension plate body, so that the relative position between the extension plate body and the column shell 1 is defined by a screw rod, thereby ensuring the assembly stability of the cover 11 and the column shell 1. Preferably, the outer side of the column shell 1 close to the port is further provided with a plurality of circumferentially spaced screw hole connecting plates 12 capable of corresponding to the connecting lug plates 541. Specifically, the plate body of the screw hole connecting plate 12 is provided with a through screw hole capable of adapting to the connecting screw rod 542. Preferably, the outer side wall of the column shell 1 away from the cover 11 is further provided with a seat 13 capable of inverting the column shell 1. Preferably, the side of the column shell 1 is provided with a stepped notch capable of embedding the limiting elastic sleeve 3 and the arc-shaped transparent window plate 2. Specifically, the plane profile of the stepped notch is U-shaped, wherein the side close to the opening of the end of the column shell 1 is directly a flat groove wall, which directly abuts against the edge of the arc-shaped transparent window plate 2 and the elastic sleeve 3 by mounting the abutting ring shell 4. The column shell 1 provided in the application can construct a high-strength outer protective shell to avoid deformation and damage of the core inside due to direct impact. The cover 11 provided in the application can shield the arc-shaped transparent window plate 2 during non-observation time, so that the core can be in a light-protected environment, thereby effectively simulating the state and environmental parameters in the formation.
[0029] Preferably, the plate surface of the arc-shaped transparent window plate 2 facing the inner cavity of the column shell 1 is provided as an arc surface capable of defining the cavity wall profile of at least a part of the cylindrical accommodating cavity, so that the arc-shaped transparent window plate 2 cooperates with the column shell 1 to form a complete cylindrical shell and cooperates with the elastic sleeve 3 to form a cylindrical accommodating cavity. Specifically, the plate body of the arc-shaped transparent window plate 2 is made of transparent materials, such as polycarbonate, polymethyl methacrylate, transparent nylon or acrylonitrile-styrene copolymer. The selection of these transparent materials not only improves the observation convenience of the core preservation device, but also helps researchers to more accurately record and analyze the characteristics of the core. At the same time, these materials also have good durability and stability, which can ensure that the core remains in its original state during long-term preservation.
[0030] Preferably, the inner wall surface of the sleeve body of the elastic sleeve 3 is provided with a wear-resistant coating. Preferably, the edge of the sleeve body in contact with the arc-shaped transparent window plate 2 is provided with a sealing strip 31. Specifically, when the elastic sleeve 3 is inserted into the inner cavity of the column shell 1 from the side surface of the column shell 1, the sealing strip 31 of the elastic sleeve 3 is clamped and positioned on the stepped notch formed on the side surface of the column shell 1, and the sleeve opening surface of the elastic sleeve 3 is buckled and assembled with the arc-shaped transparent window plate 2, so that the sleeve body of the elastic sleeve 3 cooperates with the arc-shaped transparent window plate 2 to form a cylindrical storage cavity for storing the core, and the arc-shaped transparent window plate 2 is pressed and positioned on the sealing strip 31 in the stepped notch formed on the side surface of the column shell 1, thereby ensuring the tightness of the column shell 1, the arc-shaped transparent window plate 2 and the connection of the arc-shaped transparent window plate 2. When the air pressure in the closed cavity formed by the cooperation of the column shell 1 and the connecting seat 5 increases, the expansion force of the compressed gas can exert pressure on the end surface and the side surface of the elastic membrane sleeve 3, so that the core in the elastic membrane sleeve 3 and the surface in contact with the elastic membrane sleeve 3 are subjected to uniform extrusion force, the side surface and the end surface of the core can be pressed to maintain its initial stress state, which basically provides the confining pressure parameter of the core in the formation, thereby effectively maintaining the initial confining pressure state and structure of the core, ensuring the stability of the core, maintaining its initial state and original shape, facilitating long-term storage, accurate detection and research of the core.
[0031] Preferably, a circular truncated cone through hole 41 is formed in the shell of the butt joint ring shell 4. Further preferably, a second sealing gasket 42 is embedded on the inclined inner wall surface of the circular truncated cone through hole 41. Specifically, a plurality of second sealing gaskets 42 with different diameters are embedded on the inclined inner wall surface of the circular truncated cone through hole 41 in a spaced manner. The circular truncated cone through hole 41 provided in the present application can be effectively connected with the plugging plug 52 to ensure the sealing of the butt joint, thereby forming a closed cylindrical storage cavity for storing the core, avoiding the contact of external air, water vapor and the like with the core, avoiding the exposure of the core and the possible damage such as weathering and disintegration, and ensuring the integrity and stability of the core during long-term storage.
[0032] Preferably, the connecting seat 5 comprises a seat body 51, a blocking plug 52, an elastic abutting column 53 and a connecting piece 54. Preferably, the seat body 51 detachably blocks the port of the column shell 1. Further preferably, the connecting piece 54 capable of defining the relative position between the seat body 51 and the column shell 1 is arranged on the outer side of the seat body 51 in a circumferential interval. Preferably, the surface of the seat body 51 facing the inner cavity of the column shell 1 is connected with the blocking plug 52 capable of blocking the opening of the abutting ring shell 4. Further preferably, the elastic abutting column 53 capable of being inserted into the abutting ring shell 4 and elastically abutting on the surface of the core is inserted into the blocking plug 52. The seat body 51 provided in the present application can block the port of the column shell 1 while the blocking plug 52 can be inserted into the abutting ring shell 4 to block the circular platform through hole 41, thereby simultaneously constructing a closed shell cavity capable of containing pressurized gas and a closed cylindrical containing cavity for containing the core, so as to ensure the isolation degree of the core from the external environment while constructing a high-pressure environment by using the closed shell cavity to apply a suitable confining pressure to the core. The elastic abutting column 53 provided in the present application can be inserted into the abutting ring shell 4 with adjustable insertion depth, thereby abutting on the end surface of the core, so as to ensure the stability of the core in the cylindrical containing cavity, and the elastic abutting column 53 can cause the expansion deformation of the abutting end surface by the pressurized gas, so that the end surface in contact with the core can also be subjected to equal extrusion force as other areas, thereby improving the coverage and uniformity of the confining pressure. The connecting piece 54 provided in the present application can detachably tightly assemble the seat body 51 and the column shell 1, thereby ensuring the stability and strength of the closed cavity construction.
[0033] Preferably, a third sealing washer 511 capable of filling the butt joint gap between the seat body 51 and the end face of the column shell 1 is embedded on the end face of the seat body 51 facing the column shell 1. Further preferably, a first installation groove 512 accommodating the plugging plug 52 is also provided on the end face of the seat body 51 facing the column shell 1. Preferably, a gas guide pipe 513 capable of communicating with the inner cavity of the column shell 1 is provided on the seat body 51. Further preferably, the end of the pipe body extending to the outside of the seat body 51 is connected with a gas nozzle 514 and a screw cap air release valve 515 respectively. Preferably, the gas nozzle 514 and the screw cap air release valve 515 used in the present application are both conventional gas pipe fittings, and the gas guide pipe 513 provided in the present application is also a conventional size gas pipe, so that the three are directly assembled by selecting conventional product fittings, which are common knowledge and general elements in the field, without additional structural design. The seat body 51 provided in the present application can be used to connect with a pressure boosting pump and other pressure boosting equipment through the gas nozzle 514 externally connected to the gas guide pipe 513 while assisting in building a closed shell cavity, so as to controllably inject gas into the closed shell cavity, so that the gas pressure in the closed shell cavity reaches a specified size to ensure the gas extrusion effect. Since the gas nozzle 514 and the pressure boosting pump are both conventional technical products, when used, the gas nozzle 514 is directly inserted and connected with the pressure head / gas head of the pressure boosting pump. In addition, when pressure relief disassembly or a small amount of air release is needed, the screw cap air release valve 515 can be used for air release. The gas guide pipe 513, the gas nozzle 514 and the screw cap air release valve 515 provided in the present application can be conveniently assembled according to the needs, thereby improving the efficiency and convenience of pressure boosting.
[0034] Preferably, the plugging plug 52 comprises a plug body 521 embedded in the first installation groove 512 of the seat body 51 and an abutting circular ring body 522 at the end of the plug body 521 and in adaptive abutment with the inclined inner wall surface of the circular cone through hole 41. Preferably, the first through gas guide hole 5211 is provided on the side wall surface of the plug body 521 in the inner cavity of the column shell 1. Specifically, the plug body 521 is fixedly installed in the first installation groove 512 in a gapless embedded connection manner.
[0035] Preferably, the elastic abutting column 53 is movably inserted into the plug body 521, and the insertion front end of the column body 531 is further rotatably connected with an adjusting screw 532 capable of limiting the insertion depth of the column body 531 into the plug body 521. Preferably, the adjusting screw 532 penetrates the plug body 521 and is threaded on the seat body 51, so as to change the insertion depth of the column body 531 into the plug body 521 by screwing the adjusting screw 532. Preferably, the end of the adjusting screw 532 is a limiting insertion block with a rectangular cross section, so as to facilitate the sleeving of a screwing disc. Preferably, the column body 531 is provided with an inflation groove 533 at one end of the abutting ring shell 4. Further preferably, the opening surface of the inflation groove 533 is provided with an elastic mold 534 capable of being inflated and expanded to effectively abut against the end surface of the rock core. Specifically, the sleeve body of the elastic mold sleeve 3 and the elastic mold 534 can be made of a material with certain elasticity and structural support / shape stability, for example, wear-resistant and corrosion-resistant elastic rubber. Preferably, the outer side wall of the column body 531 is further provided with a second penetrating gas guide hole 5311 capable of being in communication with the first penetrating gas guide hole 5211. Preferably, the hole body cross section of the second penetrating gas guide hole 5311 is larger than that of the first penetrating gas guide hole 5211, so that when the column body 531 axially translates relative to the plug body 521, the two gas guide holes always remain in communication. Further preferably, the outer side surface of the column body 531 is further sleeved with a fourth sealing gasket capable of filling the abutting gap between the column body 531 and the plug body 521.
[0036] Preferably, the connecting lug plate 541 of the connecting piece 54 is circumferentially spaced apart on the outer side surface of the seat body 51. Preferably, the connecting lug plate 541 is inserted with a connecting screw 542, so that the connecting screw 542 penetrating the connecting lug plate 541 defines the connection state between the seat body 51 and the column shell 1 in a manner connected with the screw hole connecting plate 12. Specifically, the rod body end of the connecting screw 542 penetrating the connecting lug plate 541 is inserted into the screw hole of the screw hole connecting plate 12 in a manner with adjustable insertion depth, so as to define the connection state between the seat body 51 and the column shell 1.
[0037] Preferably, the booster pump used in the present application can be an industrial compression gas pump convenient for disassembly and connection, so that it can provide higher gas compression than conventional tire inflation gas pumps, so that the compressed gas can be sufficiently compressed to increase the confining pressure of the adapted rock core.
[0038] The utility model is not limited to the above optional implementation, anyone can draw other various forms of product under the enlightenment of the utility model, but no matter make any change in its shape or structure, all the technical schemes falling into the scope defined by the utility model claims are within the protection scope of the utility model. The utility model specification and its drawings should be understood as illustrative rather than limiting the claims. The protection scope of the utility model is defined by the claims and its equivalents. In the full text, the features guided by "preferably" are only optional ways, and should not be understood as necessarily setting, so the applicant reserves the right to abandon or delete the relevant preferred features at any time.
Claims
1. A core preserver for geotechnical construction, comprising a column shell (1), characterized in that an arc-shaped transparent window plate (2) is embedded on the side of the column shell (1), and a resilient sleeve (3) capable of cooperating with the arc-shaped transparent window plate (2) to form a cylindrical accommodating cavity capable of accommodating a core is further connected to the inner side wall of the column shell (1), an abutment ring shell (4) connected to the end side of the plate body of the arc-shaped transparent window plate (2) is arranged at the open end of the resilient sleeve (3); a connecting seat (5) capable of cooperating with the column shell (1) to form a closed shell cavity is detachably connected to the port of the column shell (1), so that the resilient sleeve (3) is pressurized by inflating the closed shell cavity to maintain the confining pressure state of the core in the cylindrical accommodating cavity, and the connecting seat (5) can also simultaneously block the opening of the abutment ring shell (4). The connecting seat (5) comprises a seat body (51), a blocking plug (52), a resilient abutting column (53) and a connecting piece (54), wherein, 2. The core saver for geotechnical construction according to claim 1, wherein the seat body (51) detachably blocks the port of the column shell (1), and the connecting piece (54) capable of limiting the relative position between the seat body (51) and the column shell (1) is arranged on the outer side of the seat body (51) in a circumferential interval; the surface of the seat body (51) facing the inner cavity of the column shell (1) is connected with the blocking plug (52) capable of blocking the opening of the abutment ring shell (4), and the resilient abutting column (53) capable of being inserted into the abutment ring shell (4) and capable of resiliently abutting against the surface of the core is inserted into the blocking plug (52). A gas guide pipe (513) capable of communicating with the inner cavity of the column shell (1) is provided on the seat body (51), and the end and side of the pipe body extending to the outside of the seat body (51) are respectively connected with a gas nozzle (514) and a screw cap air release valve (515).
3. The core saver for geotechnical construction according to claim 2, wherein The blocking plug (52) comprises a plug body (521) embedded in a first installation groove (512) of the seat body (51) and an abutting circular table ring body (522) at the end of the plug body (521) and adaptively abutting against the inclined inner wall surface of the circular table through hole (41); 4. The core saver for geotechnical construction according to claim 3, wherein a first through gas guide hole (5211) is formed in the side wall surface of the plug body (521) in the inner cavity of the column shell (1). The column body (531) of the resilient abutting column (53) is movably inserted into the plug body (521), and the insertion front end of the column body (531) is further rotatably connected with an adjusting screw (532) capable of limiting the depth of the insertion of the column body (531) into the plug body (521), wherein 5. The core saver for geotechnical construction according to claim 4, wherein the adjusting screw (532) penetrates the plug body (521) and is threadedly provided on the seat body (51). An inflation groove (533) is formed at one end of the column body (531) inserted into the abutment ring shell (4), and the opening surface of the inflation groove (533) is provided with an elastic mold body (534) capable of being inflated and expanded to effectively abut against the end surface of the core, 6. The core saver for geotechnical construction according to claim 5, wherein The outer side wall of the column body (531) is further provided with a second through air guide hole (5311) capable of communicating with the first through air guide hole (5211).
7. The core saver for geotechnical construction according to claim 6, wherein The connecting lug plates (541) of the connecting pieces (54) are annularly and spacedly arranged on the outer side of the seat body (51), and the connecting lug plates (541) are inserted with connecting screws (542), so that the connecting screws (542) passing through the connecting lug plates (541) define the connection state between the seat body (51) and the column shell (1) in a manner of being connected with the screw hole connecting plates (12).
8. The core saver for geotechnical construction according to claim 7, wherein A circular truncated cone through opening (41) is arranged in the shell of the docking ring shell (4), and a second sealing gasket (42) is embedded on the inclined inner wall surface of the circular truncated cone through opening (41).
9. The core saver for geotechnical construction according to claim 8, wherein The side of the column shell (1) on which the arc-shaped transparent window plate (2) is mounted is detachably buckled with a cover shell (11) capable of shielding the arc-shaped transparent window plate (2).
10. The core saver for geotechnical construction according to claim 9, wherein The outer side of the column shell (1) close to the port is further annularly and spacedly provided with screw hole connecting plates (12) capable of corresponding to the connecting lug plates (541).