CN-224228697-U - Crack water early warning type anchor rod for tunnel construction

CN224228697UCN 224228697 UCN224228697 UCN 224228697UCN-224228697-U

Abstract

The utility model provides a crevice water early warning type anchor rod for tunnel construction, which belongs to the technical field of anchoring engineering and comprises an anchor outer rod, wherein an anchor inner rod is fixedly connected to the inner wall of the anchor outer rod, nuts are connected to the outer wall of the anchor outer rod in a threaded manner, evenly distributed pouring holes are formed in the outer walls of the anchor outer rod and the anchor inner rod, the crevice water early warning type anchor rod also comprises an early warning external assembly, the early warning external assembly comprises a sealing plate which is connected to the outer wall of the nuts in a sliding manner, an early warning box is fixedly connected to the outer wall of the sealing plate, a control groove is formed in the top wall of the early warning box, and a battery groove is formed in one end, far away from the sealing plate, of the early warning box. According to the utility model, the anchor rods with different lengths and inclinations are arranged, and different intervals and length-to-length ratios of the anchor rods are paved to adapt to different types of rock strata, so that more effective support can be provided, the anti-slip capability of the integral structure is enhanced, the safety of construction and later use is ensured, meanwhile, unnecessary material waste can be reduced, and the cost is reduced.

Inventors

WANG SHIQI
ZHANG LUJUN
LIU LINCHAO
LIANG JIE
NING SHUNJIANG

Assignees

四川交建天路建设工程有限责任公司

Dates

Publication Date: 20260512
Application Date: 20250313

Claims (5)

1. The utility model provides a crack water early warning formula stock for tunnel construction, includes outer pole (1) of anchor, its characterized in that, outer pole (1) inner wall fixedly connected with anchor inner rod (14) of anchor, outer pole (1) outer wall threaded connection has nut (9), evenly distributed's pouring hole (15) have all been seted up to outer pole (1) of anchor and anchor inner rod (14) outer wall, still include: The early warning external assembly comprises a sealing plate (5) which is connected to the outer wall of a nut (9) in a sliding mode, an early warning box (7) is fixedly connected to the outer wall of the sealing plate (5), a control groove (10) is formed in the top wall of the early warning box (7), a battery groove (11) is formed in one end, far away from the sealing plate (5), of the early warning box (7), evenly distributed sound holes (13) are formed in the outer wall of the early warning box (7), and a warning lamp (12) is fixedly connected to the outer wall of the early warning box (7); A conduit (16) fixedly connected to the outer wall of the anchor inner rod (14), wherein the conduit (16) is positioned between the anchor inner rod (14) and the anchor outer rod (1); The metal rods (17) are symmetrically fixed on the inner wall of the pouring hole (15), the metal rods (17) are electrically connected with the early warning box (7), and insulating rods (18) are fixedly connected between the metal rods (17).
2. The crack water early warning type anchor rod for tunnel construction according to claim 1, wherein the lengths of the anchor outer rod (1) and the anchor inner rod (14) are 2-34M, the installation inclination angle of the anchor outer rod (1) and the anchor inner rod (14) is 0-70 degrees, the installation laying interval of the anchor outer rod (1) and the anchor inner rod (14) is 1-8M, and the installation length-to-length ratio of the anchor outer rod (1) to the anchor inner rod (14) is 0-1:2-16.
3. The crevice water early warning type anchor rod for tunnel construction according to claim 1, wherein the outer wall of the early warning box (7) is slidably connected with a protective sleeve (6), the outer wall of the protective sleeve (6) is propped against the outer wall of the sealing plate (5), a protective groove (8) is formed in the inner wall of the protective sleeve (6), and the protective groove (8) is slidably connected with a nut (9).
4. The crevice water early warning type anchor rod for tunnel construction according to claim 1, wherein the outer wall of the anchor outer rod (1) is in threaded connection with a drill bit (2), and the outer wall of the anchor outer rod (1) is also in threaded connection with a grout stop plug (3).
5. The crevice water early warning type anchor rod for tunnel construction according to claim 1, wherein the outer wall of the anchor outer rod (1) is in threaded connection with a base plate (4), and the outer wall of the base plate (4) is propped against the outer wall of the sealing plate (5).

Description

Crack water early warning type anchor rod for tunnel construction Technical Field The utility model relates to the technical field of anchoring engineering, in particular to a crevice water early-warning type anchor rod for tunnel construction. Background Rock mass is a common geologic body in nature, and its structure and stability are affected by various factors. With the increasing development of engineering construction, rock mass is of great importance as a foundation for supporting a number of important facilities (such as tunnels, foundations, slopes, etc.), the stability of which is important. However, rock masses are susceptible to cracking and failure when subjected to external forces, particularly in the presence of geological defects (e.g., fissures, faults) and hydrologic influences. The cracks not only can influence the overall stability of the rock mass, but also can cause seepage and flow of underground water, so that a series of geological disasters such as collapse and landslide are caused, and the anchor rod is used as an effective reinforcement and support measure and is widely applied to geotechnical engineering. The anchor rod is anchored in the rock mass, so that the tensile strength and the shear strength of the rock mass can be obviously improved, and the deformation and the displacement caused by external force are limited. Through retrieval, the Chinese patent application number is CN205422768U, a self-advancing type crevice water early warning anchor rod is disclosed, which comprises an anchor rod body, a crevice water early warning drill bit, an early warning indicator lamp wire, a connecting sleeve, an arch-shaped backing plate, a nut, a grout stop plug and a grout stop plug, wherein the crevice water early warning drill bit is arranged at the head of the anchor rod body, the early warning indicator lamp wire is buried at the inner side of the rod body, the self-advancing screw thread is surrounded at the outer side of the rod body, grouting holes are uniformly distributed on the anchor rod body, and the early warning indicator lamp is arranged at the tail of the rod body; In the patent, although the crack water expands after meeting water when flowing through the crack water early warning drill bit, the crack water early warning device is communicated with a circuit, and the early warning indicator lamp is on to play a role in early warning the development of the crack water, the defect that an electric signal is triggered only when the expansion part contacts water, so that the crack water is easily missed and detected, and the safety hidden trouble is caused still exists in the using process. Therefore, a crevice water early warning type anchor rod for tunnel construction is needed to solve the problems. Disclosure of utility model The utility model aims to provide a crevice water early warning type anchor rod for tunnel construction, which aims to solve the problems in the background technology. In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides a crack water early warning formula stock for tunnel construction, includes the outer pole of anchor, the outer pole inner wall fixedly connected with anchor inner rod of anchor, outer pole outer wall threaded connection of anchor has the nut, evenly distributed's pouring hole has all been seted up to outer pole of anchor and anchor inner rod outer wall, still includes: The external early warning assembly comprises a sealing plate which is connected to the outer wall of the nut in a sliding manner, an early warning box is fixedly connected to the outer wall of the sealing plate, a control groove is formed in the top wall of the early warning box, a battery groove is formed in one end, far away from the sealing plate, of the early warning box, uniformly distributed sound holes are formed in the outer wall of the early warning box, and a warning lamp is fixedly connected to the outer wall of the early warning box; the wire tube is fixedly connected to the outer wall of the anchor inner rod and is positioned between the anchor inner rod and the anchor outer rod; the metal rods are symmetrically fixed on the inner wall of the pouring hole, are electrically connected with the early warning box, and are fixedly connected with insulating rods. As the preferable technical scheme of the application, the lengths of the outer anchor rod and the inner anchor rod are 2-34M, the installation inclination angles of the outer anchor rod and the inner anchor rod are 0-70 degrees, the installation laying intervals of the outer anchor rod and the inner anchor rod are 1-8M, and the installation length ratio of the outer anchor rod to the inner anchor rod is 0-1:2-16. As the preferable technical scheme of the application, the outer wall of the early warning box is connected with a protective sleeve in a sliding way, the outer wall of the protective sleeve is propped again