Drill jamming relieving tool for diaphragm wall drilling and splitting method construction

Abstract

According to the drill jamming relieving tool for diaphragm wall drilling and splitting method construction, a main hanging ring is arranged at the upper end of a gravity striking rod, a steel wire rope is connected to the main hanging ring, balance weights are symmetrically arranged on the two sides of the lower end of a main steel rod of the gravity striking rod, and the length of the balance weights is smaller than that of the main steel rod. According to the gravity striking bar, the counter weights are symmetrically arranged on the two sides of the lower end of the main steel bar, the main steel bar serves as a main component of a tool for relieving drill jamming and is used for jarring a drill bit in a hole, the counter weights and the main steel bar are used in a combined mode, the weight and impact force of the tool for relieving drill jamming are increased, rock mass on the lower portion is loosened more effectively, and the service life of the tool is prolonged. The phenomenon that a percussion drill gets stuck in drilling and splitting method construction can be effectively avoided, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water conservancy construction tools, and particularly relates to a stuck drill releasing tool for the drilling and splitting method construction of diaphragm walls. Background Technique

[0002] With the rapid development of domestic hydropower construction, the innovation of diaphragm wall hole-forming equipment and the improvement of technology have created a variety of construction methods. The most commonly used construction methods include pure grabbing method for trench forming, drill-grabbing method for trench forming, hydraulic milling machine for trench forming, and drilling and splitting method for trench forming, etc. Selecting suitable equipment and technology according to different geological strata is the key factor to ensure construction quality and construction period.

[0003] The drilling and splitting method is one of the traditional construction methods, which can be applied to sandy pebble strata, bedrock strata, and complex geological strata, etc. The specific process of the drilling and splitting method is a way that the impact drill lifts the drill bit to a certain height through a steel wire rope and cycles to rotate and heavily strike and squeeze the fresh strata at the bottom of the trench hole and the hole wall to form a trench. However, the stuck drill phenomenon occurs during the drilling process of the diaphragm wall by the drilling and splitting method, resulting in the inability to pull out the drill bit and affecting the construction progress. Currently, a tool for quickly releasing the stuck drill is urgently needed to improve construction efficiency. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a stuck drill releasing tool for the drilling and splitting method construction of diaphragm walls, which has a simple structure and is convenient to operate.

[0005] The technical solution adopted to solve the above technical problem is: a stuck drill releasing tool for the drilling and splitting method construction of diaphragm walls, a main lifting ring is arranged at the upper end of the gravity striking rod, a steel wire rope is connected to the main lifting ring, and counterweights are symmetrically arranged on both sides of the lower end of the main steel rod of the gravity striking rod, and the length of the counterweight < the length of the main steel rod.

[0006] As a preferred technical solution, the counterweight is a steel rod, the diameter of the steel rod is 200 mm - 300 mm, and the length is 0.8 m - 2 m.

[0007] As a preferred technical solution, the length of the main steel rod is 3.5 m - 5 m, and the diameter is 200 mm - 300 mm.

[0008] As a preferred technical solution, a secondary lifting ring is arranged on one side of the main lifting ring at the upper end of the gravity striking rod, and a steel wire rope is connected to the secondary lifting ring.

[0009] The beneficial effects of the utility model are as follows:

[0010] For the gravity impact rod of the present utility model, counterweights are symmetrically arranged on both sides at the lower end of the main steel rod. The main steel rod is a main component of the stuck drill releasing tool, used to shock the drill bit in the hole. The counterweights are used in combination with the main steel rod to increase the weight and impact force of the stuck drill releasing tool, more effectively loosen the lower rock mass, and can effectively solve the problem of drill jamming in the drill splitting method construction, improve the construction efficiency, reduce construction interruptions and additional operations caused by drill jamming, reduce the safety risks during the construction process, ensure the continuity and stability of the construction process, and improve the overall reliability of the construction. Since the drill splitting method itself is applicable to various geological conditions such as sandy pebble strata, bedrock strata, and complex geological strata, the use of the present utility model further enhances the applicability of the construction method. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 Fig. is a structural schematic diagram of the present utility model.

[0012] Figure 2 is Figure 1 the top view of

[0013] Wherein: main steel rod 1, counterweight 2, main lifting ring 3, auxiliary lifting ring 4, steel wire rope 5. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The present utility model will be further described in detail below with reference to the drawings and embodiments, but the present utility model is not limited to the following embodiments.

[0015] Embodiment 1

[0016] In Figure 1 , 2 , a stuck drill releasing tool for the drill splitting method construction of the cutoff wall in this embodiment includes a gravity impact rod, a main lifting ring 3, an auxiliary lifting ring 4, and a steel wire rope 5. The gravity impact rod is a solid main steel rod 1 with counterweights 2 symmetrically welded on both sides at the lower end. The length of the main steel rod 1 is 3.5 m and the diameter is 200 mm. The counterweight 2 is a solid steel rod with a diameter of 200 mm and a length of 0.8 m. The main steel rod 1 is a main component of the stuck drill releasing tool, used to shock the drill bit in the hole. The counterweight 2 is used in combination with the main steel rod 1 to increase the weight and impact force of the stuck drill releasing tool, and more effectively loosen the lower rock mass.

[0017] A main lifting ring 3 and an auxiliary lifting ring 4 are welded at the upper end of the main steel rod 1. The main lifting ring 3 is located at the center of the upper end face of the gravity impact rod, and the auxiliary lifting ring 4 is located on one side of the main lifting ring 3. Steel wire ropes 5 are connected to both the main lifting ring 3 and the auxiliary lifting ring 4. The steel wire rope 5 is the main rope of the drill rig. The main lifting ring 3 is used to be connected to the daily hanging of the drill rig, and the auxiliary lifting ring 4 is used as a backup and is used when the function of the main lifting ring 3 fails to ensure the continuity of the construction.

[0018] When the sticking accident occurs, use the auxiliary rope of the percussion drill to lift the gravity impact rod, and cyclically shock the drill bit in the hole to loosen the lower rock mass and relieve the sticking accident.

[0019] Embodiment 2

[0020] In this embodiment, the gravity impact rod is a solid main steel rod 1, and counterweights 2 are symmetrically welded on both sides of the lower end of the main steel rod 1. The length of the main steel rod 1 is 4 m and the diameter is 250 mm. The counterweight 2 is a solid steel rod with a diameter of 250 mm and a length of 1 m. Other components and the connection relationships of the components are the same as those in Embodiment 1.

[0021] Embodiment 3

[0022] In this embodiment, the gravity impact rod is a solid main steel rod 1, and counterweights 2 are symmetrically welded on both sides of the lower end of the main steel rod 1. The length of the main steel rod 1 is 5 m and the diameter is 300 mm. The counterweight 2 is a solid steel rod with a diameter of 300 mm and a length of 2 m. Other components and the connection relationships of the components are the same as those in Embodiment 1.

Claims

1. A drill-jamming device for use in anti-seepage wall drilling and splitting construction, characterized in that: A main lifting ring is arranged at the upper end of the gravity striking rod, and a steel wire rope is connected to the main lifting ring. The gravity striking rod is a main steel rod with counterweights symmetrically arranged on both sides of the lower end, and the length of the counterweights is less than the length of the main steel rod; the counterweights are steel rods with a diameter of 200mm to 300mm and a length of 0.8m to 2m.

2. The drill-jamming relieving device for anti-seepage wall drilling and splitting construction according to claim 1, characterized in that: The main steel rod has a length of 3.5m to 5m and a diameter of 200mm to 300mm.

3. The drill-jamming relieving device for anti-seepage wall drilling and splitting construction according to claim 1, characterized in that: A secondary lifting ring is arranged on one side of the main lifting ring at the upper end of the gravity striking rod, and a steel wire rope is connected to the secondary lifting ring.

Images