Abstract:To improve the technology strength of geological prospecting and the backward status of geo-equipment, authorized by State Council on August 8th in 1978, The Institute of Exploration Technology was founded. During the 30 years, staff of two generations have been working diligently and creatively to get great progress in the areas of research, construction and management. At present, a geological scientific research institution has been built. Based on prospecting technique, the institute has become a scientific research organization on geological survey. The author recalled the developing course of hard work and reforming of the institute, summarized the reforming of scientific and technique system, geological survey and scientific research. The key fields and preferred directions of geological survey and scientific research for the institute in Eleventh Five-Year Plan Period are pointed out.

Abstract:Pre-stress anchor rod (rope) has the outstanding features with driving reinforcement, in-depth reinforcement, the flexibility in arrangement, short construction period, less disturbance to the rock (soil) body, good economical efficiency and so on, therefore it is widely applied in the engineering of such as bridge, side slope, foundation pit, tunnel, dam reinforcement, anti-floating and anti-leaning structures, geological disaster control and so on. This article summarized the testing method in common use and the present development of the apparatus and existent problems, pointed out the research and development trend of the measuring and testing techniques in pre-stress anchoring engineering.

Abstract:Collection and transmission of geological hazard monitoring data has its own particularity compared to other industries, but the rapid development in automatic monitoring equipments and communication technology brought favorable conditions for automatization of geological hazard monitoring. The research on the remote data collection and transmission system based on GPRS/GSM network and the application in the real-time monitoring website are introduced in this paper. The results show that the system is feasible, cost-effective and convenient, and also it is the development trend of the monitoring technology for geological hazard.

Abstract:This paper introduces the main assignments of the monitoring and early-warning system engineering for control of geological hazard, monitoring and early-warning construction and the main methods. The significance was expatiated on effective monitoring in control engineering of geological hazard, and the application of a newly developed monitoring instrument was presented, which was used in monitoring for control of the third period of geological hazard in Three Gorges reservoir region.

Abstract:Starting with traditional technology method, the special measuring technology and the newest survey technology, this article introduced several common methods and technical means for geological hazard deformation monitoring in Three Gorges reservoir region nowadays. And comparison was also made on advantages and disadvantages of different methods and technical means in different geological hazards.

Abstract:The monitoring on landslide in K2794 of ER-Kang road of No.318 national highway lasted for two and a half year, and experienced 3 stages——before, during and after the construction, provided the auxiliary data for the design and construction of landslide treatment. This paper describes the monitoring design, monitoring methods, selection of monitoring instruments and monitoring layout, experience was accumulated for other similar landslide monitoring.

Abstract:With the case of large accumulation of Erlang temple, demonstration was made on the formation mechanism with dynamical geology and the analysis on process of slope. And the primary evolution indicated that the integral sliding was impossible, but because of lower local stability, it was possible to have large-scale unstable failure induced by mass rainfall and human engineering activities.

Abstract:Landslide of Shengjibao in Fengjie County of the Three Gorges reservoir area was one of the monitoring and early-warning projects with important geographical position. Engineering geological characteristics and main influence factors were analyzed, and four monitoring methods were determined with the application of GPS in the crust deformation, deep displacement, landslide thrust monitoring. The feasibility of these monitoring methods was proved in operation, and at last, suggestions were put forward to control of Shengjibao landslide according to monitoring conclusion.

Abstract:Deformation monitoring is an important means to monitor the safety of deformation, and the basic function is to collect dynamic displacement information through deformation measurement. According to the information, analysis and determination can be made on early-warning to dangerous situations. Analysis was made on F testing method of stability of basic benchmark of GPS deformation monitoring study. Based on the sliding monitoring engineering in Yunyang County, analysis on stability of basic benchmark of GPS landslide deformation monitoring networks was also made.

Abstract:There are many kinds of anti-sliding wall, and gravity anti-sliding wall is a typical and common supporting structure, which is widely used in control of unstable slope with its obvious advantages. But there are also shortages in its structure design, construction management and effect monitoring; the paper discussed these problems with engineering cases.

Abstract:This paper introduced the characteristics of control works for geological hazard; and according to these characteristics, how to determine the cost in reason in the preceding construction was also presented. It should be recorded and vised if the original design was changed and the item was different to the contract or the bill quantity in order to get the possible claiming compensation later.

Abstract:Intelligent sensor, data acquiring system, large capacity storage chips were equipped in CE-1 memory-type magnetic borehole inclinometer and QXY-5 memory-type borehole inclinometer with high accuracy of test data and good stability. The development and application of these two apparatus are introduced in this paper.

Abstract:The non-corrosion anchorage cable is a new non-metallic anchor cable material, which was developed by Institute of Exploration Technology. It is clear that non-corrosion metal anchorage cable is more effective and reliable than steel ones in extremely conditions with its particular capabilities, so it has great market potentialities.

Abstract:Drilling with simultaneous casing technology has been developed to be an effective method to deal with drilling in complicated formation. The paper introduced the characteristics of DTH drilling with simultaneous casing technology, SP series of simultaneous casing drilling tool and the application of DTH drilling with simultaneous casing technology in drilling in complicated formation, such as control of geological hazard, hydropower construction, foundation treatment for urban high-rise building, highway and railway construction.

Abstract:Drilling with DTH can achieve high efficiency in rock and soil drilling engineering. According to the drilling characteristics of DTH, the geometry structural design, manufacture technology and performance parameters were introduced in this paper.

Abstract:In this paper, the development and key technologies of YBG series of hydraulic pipe-pulling machine was elaborated; the usage, principle of performance, structural feature and main technical parameters were briefly introduced; and key links in the application were also emphasized.

Abstract:An early warning monitoring method for landslides based on quasi-distributed fiber optic stress sensing is presented in this paper. The principle of quasi-distributed fiber optic stress sensing and the monitoring method for landslides with the internal stress of landslides are described. According to the characteristics of the soil mass and the changes of stress which was detected by the system, through some applications of specific mathematical models, the movement can be predicted. With stress measuring range 0~15MPa, spatial resolution 2m, measuring distance 1km, the quasi-distributed fiber optic stress sensor and the warning monitoring system are designed. This landslide monitoring method has outstanding performance characteristics; for example, high-sensitivity, high spatial resolution, quasi-distributed measuring, easy networking to monitor landslides in the area and very good adaptability in project.

Abstract:Summary of drilling techniques applied in China’s first deep scientific drilling well CCSD-1 and drilling operation were briefly made, and some original data and technical economic indexes of the drilling operation were presented.

Abstract:Directional coring technology is not only applied to determine ore layer and texture plane occurrence, but also used to identify ore layer distribution, understand the formation trend and predict bending trend of the borehole. The paper introduced the principle of core-storage directional core drilling, the key techniques, instrument constitution, technical parameters and the site application.

Abstract:Deep fractured gas reservoir has the characteristics of abnormal high pressure and high production, and in the well drilling and completion process, blowout and leaky accidents often occur, so leakage proof and blocking are necessary. Experiments were made with full-scale plugging devices in statistic and dynamic high-pressure simulated plugging and combination of optimized formulas; and systematic review was made on plugging capacity, resistance to pressure and acid solubility. The determined formula has the characteristics of high-rate of acid solution, high-strength of plugging and good effect of flow-back, which provides basis for on-site leakage proofing.

Abstract:The compound additive of S model wet shotcrete has characteristics of increasing workability and flowability of concrete mixture, and improving properties of liquid accelerator. It also can replace the various unitary admixtures. This paper introduces the desk research, production test of the project, application effect, technical specifications, rational addition and the performance. The result shows that this material has popularizing application value with its reliable technique, convenient operation and good economic effect.

Abstract:This article introduced the basic structure, principle, major technical parameters and the field test situation of the television detecting system of inner damages of underground pipeline.

Abstract:According to various of the technical difficulties such as low drilling efficiency in hard rock and short service life of diamond drilling bit, analysis was made on the inherent links between blade-extruding of hot-pressing diamond and rock abrasiveness. The matrix and properties were considered to be important factors, so starting with the research on matrix and properties of hot-pressing diamond drilling bit, hot-pressing iron-based impregnated diamond drilling bit was developed. Drilling in hard and compact rocks, the efficiency increased from about 0.5 m/h to about 1.17 m/h, and the service life was extended from 10 m/each to 21.31 m/each. It was proved that iron-based alloy is a new matrix material of diamond drilling bit and hot-pressing iron-based impregnated diamond drilling bit is a new type of diamond drilling bit.

Abstract:PDC bit is applicable to drill in soft to medium-hard homogeneous layer with high ROP and long service life, but not suitable for drilling in gravel and multi-interbedded formation. According to the problems of low efficient, short service life and low core recovery in coal-measures soft and hard multi-interbeded formation(3~8 degree), the paper put forward a design with strengthening radius retention structure, improving the water circulation and advancing auxiliary cutting teeth. φ77mm PDC bit was designed and manufactured, and good application effect was achieved in the exploration borehole No.3 of Tonghua coal mine in Qijiang County of Chongqing.

Abstract:This paper briefly introduces vocational qualification certificate system, the function of vocational qualification certificate and relevant generalization in China; as well as the writing process of “National Vocational Standard——Drilling Worker”. It is expected to popularize vocational qualification certificate system in the staff of geological survey industry with the skill level enhanced.